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https://github.com/claude-code-best/claude-code.git
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refactor: 搬入 Gemini 兼容层到 model-provider 包
- 搬入 Gemini 类型定义、消息转换、工具转换、流适配、模型映射 - 主项目 gemini/ 目录下文件改为 thin re-export proxy Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
claude-code-best
@@ -0,0 +1,307 @@
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import type {
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BetaToolResultBlockParam,
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BetaToolUseBlock,
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} from '@anthropic-ai/sdk/resources/beta/messages/messages.mjs'
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import type { AssistantMessage, UserMessage } from '../../types/message.js'
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import type { SystemPrompt } from '../../types/systemPrompt.js'
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import {
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GEMINI_THOUGHT_SIGNATURE_FIELD,
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type GeminiContent,
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type GeminiGenerateContentRequest,
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type GeminiPart,
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} from './types.js'
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// Simple JSON parse utility (replaces safeParseJSON from main project)
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function safeParseJSON(json: string | null | undefined): unknown {
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if (!json) return null
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try {
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return JSON.parse(json)
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} catch {
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return null
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}
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}
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export function anthropicMessagesToGemini(
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messages: (UserMessage | AssistantMessage)[],
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systemPrompt: SystemPrompt,
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): Pick<GeminiGenerateContentRequest, 'contents' | 'systemInstruction'> {
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const contents: GeminiContent[] = []
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const toolNamesById = new Map<string, string>()
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for (const msg of messages) {
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if (msg.type === 'assistant') {
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const content = convertInternalAssistantMessage(msg)
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if (content.parts.length > 0) {
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contents.push(content)
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}
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const assistantContent = msg.message.content
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if (Array.isArray(assistantContent)) {
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for (const block of assistantContent) {
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if (typeof block !== 'string' && block.type === 'tool_use') {
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toolNamesById.set(block.id, block.name)
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}
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}
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}
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continue
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}
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if (msg.type === 'user') {
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const content = convertInternalUserMessage(msg, toolNamesById)
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if (content.parts.length > 0) {
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contents.push(content)
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}
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}
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}
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const systemText = systemPromptToText(systemPrompt)
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return {
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contents,
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...(systemText
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? {
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systemInstruction: {
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parts: [{ text: systemText }],
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},
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}
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: {}),
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}
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}
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function systemPromptToText(systemPrompt: SystemPrompt): string {
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if (!systemPrompt || systemPrompt.length === 0) return ''
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return systemPrompt.filter(Boolean).join('\n\n')
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}
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function convertInternalUserMessage(
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msg: UserMessage,
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toolNamesById: ReadonlyMap<string, string>,
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): GeminiContent {
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const content = msg.message.content
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if (typeof content === 'string') {
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return {
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role: 'user',
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parts: createTextGeminiParts(content),
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}
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}
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if (!Array.isArray(content)) {
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return { role: 'user', parts: [] }
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}
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return {
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role: 'user',
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parts: content.flatMap(block =>
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convertUserContentBlockToGeminiParts(block as unknown as string | Record<string, unknown>, toolNamesById),
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),
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}
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}
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function convertUserContentBlockToGeminiParts(
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block: string | Record<string, unknown>,
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toolNamesById: ReadonlyMap<string, string>,
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): GeminiPart[] {
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if (typeof block === 'string') {
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return createTextGeminiParts(block)
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}
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if (block.type === 'text') {
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return createTextGeminiParts(block.text)
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}
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if (block.type === 'tool_result') {
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const toolResult = block as unknown as BetaToolResultBlockParam
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return [
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{
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functionResponse: {
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name: toolNamesById.get(toolResult.tool_use_id) ?? toolResult.tool_use_id,
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response: toolResultToResponseObject(toolResult),
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},
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},
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]
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}
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// Convert Anthropic image blocks to Gemini inlineData
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if (block.type === 'image') {
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const source = block.source as Record<string, unknown> | undefined
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if (source?.type === 'base64' && typeof source.data === 'string') {
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const mediaType = (source.media_type as string) || 'image/png'
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return [
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{
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inlineData: {
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mimeType: mediaType,
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data: source.data,
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},
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},
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]
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}
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// URL images not directly supported by Gemini, convert to text description
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if (source?.type === 'url' && typeof source.url === 'string') {
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return createTextGeminiParts(`[image: ${source.url}]`)
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}
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}
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return []
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}
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function convertInternalAssistantMessage(msg: AssistantMessage): GeminiContent {
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const content = msg.message.content
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if (typeof content === 'string') {
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return {
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role: 'model',
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parts: createTextGeminiParts(content),
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}
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}
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if (!Array.isArray(content)) {
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return { role: 'model', parts: [] }
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}
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const parts: GeminiPart[] = []
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for (const block of content) {
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if (typeof block === 'string') {
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parts.push(...createTextGeminiParts(block))
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continue
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}
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if (block.type === 'text') {
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parts.push(
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...createTextGeminiParts(
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block.text,
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getGeminiThoughtSignature(block as unknown as Record<string, unknown>),
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),
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)
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continue
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}
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if (block.type === 'thinking') {
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const thinkingPart = createThinkingGeminiPart(
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block.thinking,
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block.signature,
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)
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if (thinkingPart) {
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parts.push(thinkingPart)
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}
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continue
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}
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if (block.type === 'tool_use') {
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const toolUse = block as unknown as BetaToolUseBlock
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parts.push({
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functionCall: {
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name: toolUse.name,
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args: normalizeToolUseInput(toolUse.input),
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},
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...(getGeminiThoughtSignature(block as unknown as Record<string, unknown>) && {
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thoughtSignature: getGeminiThoughtSignature(block as unknown as Record<string, unknown>),
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}),
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})
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}
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}
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return { role: 'model', parts }
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}
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function createTextGeminiParts(
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value: unknown,
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thoughtSignature?: string,
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): GeminiPart[] {
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if (typeof value !== 'string' || value.length === 0) {
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return []
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}
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return [
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{
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text: value,
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...(thoughtSignature && { thoughtSignature }),
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},
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]
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}
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function createThinkingGeminiPart(
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value: unknown,
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thoughtSignature?: string,
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): GeminiPart | undefined {
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if (typeof value !== 'string' || value.length === 0) {
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return undefined
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}
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return {
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text: value,
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thought: true,
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...(thoughtSignature && { thoughtSignature }),
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}
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}
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function normalizeToolUseInput(input: unknown): Record<string, unknown> {
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if (typeof input === 'string') {
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const parsed = safeParseJSON(input)
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if (parsed && typeof parsed === 'object' && !Array.isArray(parsed)) {
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return parsed as Record<string, unknown>
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}
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return parsed === null ? {} : { value: parsed }
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}
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if (input && typeof input === 'object' && !Array.isArray(input)) {
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return input as Record<string, unknown>
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}
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return input === undefined ? {} : { value: input }
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}
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function toolResultToResponseObject(
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block: BetaToolResultBlockParam,
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): Record<string, unknown> {
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const result = normalizeToolResultContent(block.content)
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if (
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result &&
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typeof result === 'object' &&
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!Array.isArray(result)
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) {
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return block.is_error ? { ...(result as Record<string, unknown>), is_error: true } : result as Record<string, unknown>
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}
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return {
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result,
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...(block.is_error ? { is_error: true } : {}),
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}
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}
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function normalizeToolResultContent(content: unknown): unknown {
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if (typeof content === 'string') {
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const parsed = safeParseJSON(content)
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return parsed ?? content
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}
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if (Array.isArray(content)) {
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const text = content
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.map(part => {
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if (typeof part === 'string') return part
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if (
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part &&
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typeof part === 'object' &&
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'text' in part &&
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typeof part.text === 'string'
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) {
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return part.text
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}
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return ''
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})
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.filter(Boolean)
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.join('\n')
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const parsed = safeParseJSON(text)
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return parsed ?? text
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}
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return content ?? ''
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}
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function getGeminiThoughtSignature(block: Record<string, unknown>): string | undefined {
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const signature = block[GEMINI_THOUGHT_SIGNATURE_FIELD]
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return typeof signature === 'string' && signature.length > 0
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? signature
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: undefined
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}
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@@ -0,0 +1,285 @@
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import type { BetaToolUnion } from '@anthropic-ai/sdk/resources/beta/messages/messages.mjs'
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import type {
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GeminiFunctionCallingConfig,
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GeminiTool,
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} from './types.js'
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const GEMINI_JSON_SCHEMA_TYPES = new Set([
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'string',
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'number',
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'integer',
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'boolean',
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'object',
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'array',
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'null',
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])
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function normalizeGeminiJsonSchemaType(
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value: unknown,
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): string | string[] | undefined {
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if (typeof value === 'string') {
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return GEMINI_JSON_SCHEMA_TYPES.has(value) ? value : undefined
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}
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if (Array.isArray(value)) {
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const normalized = value.filter(
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(item): item is string =>
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typeof item === 'string' && GEMINI_JSON_SCHEMA_TYPES.has(item),
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)
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const unique = Array.from(new Set(normalized))
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if (unique.length === 0) return undefined
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return unique.length === 1 ? unique[0] : unique
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}
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return undefined
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}
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function inferGeminiJsonSchemaTypeFromValue(value: unknown): string | undefined {
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if (value === null) return 'null'
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if (Array.isArray(value)) return 'array'
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if (typeof value === 'string') return 'string'
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if (typeof value === 'boolean') return 'boolean'
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if (typeof value === 'number') {
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return Number.isInteger(value) ? 'integer' : 'number'
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}
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if (typeof value === 'object') return 'object'
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return undefined
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}
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function inferGeminiJsonSchemaTypeFromEnum(
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values: unknown[],
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): string | string[] | undefined {
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const inferred = values
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.map(inferGeminiJsonSchemaTypeFromValue)
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.filter((value): value is string => value !== undefined)
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const unique = Array.from(new Set(inferred))
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if (unique.length === 0) return undefined
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return unique.length === 1 ? unique[0] : unique
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}
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function addNullToGeminiJsonSchemaType(
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value: string | string[] | undefined,
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): string | string[] | undefined {
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if (value === undefined) return ['null']
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if (Array.isArray(value)) {
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return value.includes('null') ? value : [...value, 'null']
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}
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return value === 'null' ? value : [value, 'null']
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}
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function sanitizeGeminiJsonSchemaProperties(
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value: unknown,
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): Record<string, Record<string, unknown>> | undefined {
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if (!value || typeof value !== 'object' || Array.isArray(value)) {
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return undefined
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}
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const sanitizedEntries = Object.entries(value as Record<string, unknown>)
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.map(([key, schema]) => [key, sanitizeGeminiJsonSchema(schema)] as const)
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.filter(([, schema]) => Object.keys(schema).length > 0)
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if (sanitizedEntries.length === 0) {
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return undefined
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}
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return Object.fromEntries(sanitizedEntries)
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}
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function sanitizeGeminiJsonSchemaArray(
|
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value: unknown,
|
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): Record<string, unknown>[] | undefined {
|
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if (!Array.isArray(value)) return undefined
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const sanitized = value
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.map(item => sanitizeGeminiJsonSchema(item))
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.filter(item => Object.keys(item).length > 0)
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return sanitized.length > 0 ? sanitized : undefined
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}
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function sanitizeGeminiJsonSchema(
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schema: unknown,
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): Record<string, unknown> {
|
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if (!schema || typeof schema !== 'object' || Array.isArray(schema)) {
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return {}
|
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}
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const source = schema as Record<string, unknown>
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const result: Record<string, unknown> = {}
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let type = normalizeGeminiJsonSchemaType(source.type)
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if (source.const !== undefined) {
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result.enum = [source.const]
|
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type = type ?? inferGeminiJsonSchemaTypeFromValue(source.const)
|
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} else if (Array.isArray(source.enum) && source.enum.length > 0) {
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result.enum = source.enum
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type = type ?? inferGeminiJsonSchemaTypeFromEnum(source.enum)
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}
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||||
|
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if (!type) {
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if (source.properties && typeof source.properties === 'object') {
|
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type = 'object'
|
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} else if (source.items !== undefined || source.prefixItems !== undefined) {
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type = 'array'
|
||||
}
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}
|
||||
|
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if (source.nullable === true) {
|
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type = addNullToGeminiJsonSchemaType(type)
|
||||
}
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||||
|
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if (type) {
|
||||
result.type = type
|
||||
}
|
||||
|
||||
if (typeof source.title === 'string') {
|
||||
result.title = source.title
|
||||
}
|
||||
if (typeof source.description === 'string') {
|
||||
result.description = source.description
|
||||
}
|
||||
if (typeof source.format === 'string') {
|
||||
result.format = source.format
|
||||
}
|
||||
if (typeof source.pattern === 'string') {
|
||||
result.pattern = source.pattern
|
||||
}
|
||||
if (typeof source.minimum === 'number') {
|
||||
result.minimum = source.minimum
|
||||
} else if (typeof source.exclusiveMinimum === 'number') {
|
||||
result.minimum = source.exclusiveMinimum
|
||||
}
|
||||
if (typeof source.maximum === 'number') {
|
||||
result.maximum = source.maximum
|
||||
} else if (typeof source.exclusiveMaximum === 'number') {
|
||||
result.maximum = source.exclusiveMaximum
|
||||
}
|
||||
if (typeof source.minItems === 'number') {
|
||||
result.minItems = source.minItems
|
||||
}
|
||||
if (typeof source.maxItems === 'number') {
|
||||
result.maxItems = source.maxItems
|
||||
}
|
||||
if (typeof source.minLength === 'number') {
|
||||
result.minLength = source.minLength
|
||||
}
|
||||
if (typeof source.maxLength === 'number') {
|
||||
result.maxLength = source.maxLength
|
||||
}
|
||||
if (typeof source.minProperties === 'number') {
|
||||
result.minProperties = source.minProperties
|
||||
}
|
||||
if (typeof source.maxProperties === 'number') {
|
||||
result.maxProperties = source.maxProperties
|
||||
}
|
||||
|
||||
const properties = sanitizeGeminiJsonSchemaProperties(source.properties)
|
||||
if (properties) {
|
||||
result.properties = properties
|
||||
result.propertyOrdering = Object.keys(properties)
|
||||
}
|
||||
|
||||
if (Array.isArray(source.required)) {
|
||||
const required = source.required.filter(
|
||||
(item): item is string => typeof item === 'string',
|
||||
)
|
||||
if (required.length > 0) {
|
||||
result.required = required
|
||||
}
|
||||
}
|
||||
|
||||
if (typeof source.additionalProperties === 'boolean') {
|
||||
result.additionalProperties = source.additionalProperties
|
||||
} else {
|
||||
const additionalProperties = sanitizeGeminiJsonSchema(
|
||||
source.additionalProperties,
|
||||
)
|
||||
if (Object.keys(additionalProperties).length > 0) {
|
||||
result.additionalProperties = additionalProperties
|
||||
}
|
||||
}
|
||||
|
||||
const items = sanitizeGeminiJsonSchema(source.items)
|
||||
if (Object.keys(items).length > 0) {
|
||||
result.items = items
|
||||
}
|
||||
|
||||
const prefixItems = sanitizeGeminiJsonSchemaArray(source.prefixItems)
|
||||
if (prefixItems) {
|
||||
result.prefixItems = prefixItems
|
||||
}
|
||||
|
||||
const anyOf = sanitizeGeminiJsonSchemaArray(source.anyOf ?? source.oneOf)
|
||||
if (anyOf) {
|
||||
result.anyOf = anyOf
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
function sanitizeGeminiFunctionParameters(
|
||||
schema: unknown,
|
||||
): Record<string, unknown> {
|
||||
const sanitized = sanitizeGeminiJsonSchema(schema)
|
||||
if (Object.keys(sanitized).length > 0) {
|
||||
return sanitized
|
||||
}
|
||||
|
||||
return {
|
||||
type: 'object',
|
||||
properties: {},
|
||||
}
|
||||
}
|
||||
|
||||
export function anthropicToolsToGemini(tools: BetaToolUnion[]): GeminiTool[] {
|
||||
const functionDeclarations = tools
|
||||
.filter(tool => {
|
||||
const toolType = (tool as unknown as { type?: string }).type
|
||||
return tool.type === 'custom' || !('type' in tool) || toolType !== 'server'
|
||||
})
|
||||
.map(tool => {
|
||||
const anyTool = tool as unknown as Record<string, unknown>
|
||||
const name = (anyTool.name as string) || ''
|
||||
const description = (anyTool.description as string) || ''
|
||||
const inputSchema =
|
||||
(anyTool.input_schema as Record<string, unknown> | undefined) ?? {
|
||||
type: 'object',
|
||||
properties: {},
|
||||
}
|
||||
|
||||
return {
|
||||
name,
|
||||
description,
|
||||
parametersJsonSchema: sanitizeGeminiFunctionParameters(inputSchema),
|
||||
}
|
||||
})
|
||||
|
||||
return functionDeclarations.length > 0
|
||||
? [{ functionDeclarations }]
|
||||
: []
|
||||
}
|
||||
|
||||
export function anthropicToolChoiceToGemini(
|
||||
toolChoice: unknown,
|
||||
): GeminiFunctionCallingConfig | undefined {
|
||||
if (!toolChoice || typeof toolChoice !== 'object') return undefined
|
||||
|
||||
const tc = toolChoice as Record<string, unknown>
|
||||
const type = tc.type as string
|
||||
|
||||
switch (type) {
|
||||
case 'auto':
|
||||
return { mode: 'AUTO' }
|
||||
case 'any':
|
||||
return { mode: 'ANY' }
|
||||
case 'tool':
|
||||
return {
|
||||
mode: 'ANY',
|
||||
allowedFunctionNames:
|
||||
typeof tc.name === 'string' ? [tc.name] : undefined,
|
||||
}
|
||||
default:
|
||||
return undefined
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,35 @@
|
||||
function getModelFamily(model: string): 'haiku' | 'sonnet' | 'opus' | null {
|
||||
if (/haiku/i.test(model)) return 'haiku'
|
||||
if (/opus/i.test(model)) return 'opus'
|
||||
if (/sonnet/i.test(model)) return 'sonnet'
|
||||
return null
|
||||
}
|
||||
|
||||
export function resolveGeminiModel(anthropicModel: string): string {
|
||||
if (process.env.GEMINI_MODEL) {
|
||||
return process.env.GEMINI_MODEL
|
||||
}
|
||||
|
||||
const cleanModel = anthropicModel.replace(/\[1m\]$/i, '')
|
||||
const family = getModelFamily(cleanModel)
|
||||
|
||||
if (!family) {
|
||||
return cleanModel
|
||||
}
|
||||
|
||||
const geminiEnvVar = `GEMINI_DEFAULT_${family.toUpperCase()}_MODEL`
|
||||
const geminiModel = process.env[geminiEnvVar]
|
||||
if (geminiModel) {
|
||||
return geminiModel
|
||||
}
|
||||
|
||||
const sharedEnvVar = `ANTHROPIC_DEFAULT_${family.toUpperCase()}_MODEL`
|
||||
const resolvedModel = process.env[sharedEnvVar]
|
||||
if (resolvedModel) {
|
||||
return resolvedModel
|
||||
}
|
||||
|
||||
throw new Error(
|
||||
`Gemini provider requires GEMINI_MODEL or ${geminiEnvVar} (or ${sharedEnvVar} for backward compatibility) to be configured.`,
|
||||
)
|
||||
}
|
||||
@@ -0,0 +1,243 @@
|
||||
import type { BetaRawMessageStreamEvent } from '@anthropic-ai/sdk/resources/beta/messages/messages.mjs'
|
||||
import { randomUUID } from 'crypto'
|
||||
import type { GeminiPart, GeminiStreamChunk } from './types.js'
|
||||
|
||||
export async function* adaptGeminiStreamToAnthropic(
|
||||
stream: AsyncIterable<GeminiStreamChunk>,
|
||||
model: string,
|
||||
): AsyncGenerator<BetaRawMessageStreamEvent, void> {
|
||||
const messageId = `msg_${randomUUID().replace(/-/g, '').slice(0, 24)}`
|
||||
let started = false
|
||||
let stopped = false
|
||||
let nextContentIndex = 0
|
||||
let openTextLikeBlock:
|
||||
| { index: number; type: 'text' | 'thinking' }
|
||||
| null = null
|
||||
let sawToolUse = false
|
||||
let finishReason: string | undefined
|
||||
let inputTokens = 0
|
||||
let outputTokens = 0
|
||||
|
||||
for await (const chunk of stream) {
|
||||
const usage = chunk.usageMetadata
|
||||
if (usage) {
|
||||
inputTokens = usage.promptTokenCount ?? inputTokens
|
||||
outputTokens =
|
||||
(usage.candidatesTokenCount ?? 0) + (usage.thoughtsTokenCount ?? 0)
|
||||
}
|
||||
|
||||
if (!started) {
|
||||
started = true
|
||||
yield {
|
||||
type: 'message_start',
|
||||
message: {
|
||||
id: messageId,
|
||||
type: 'message',
|
||||
role: 'assistant',
|
||||
content: [],
|
||||
model,
|
||||
stop_reason: null,
|
||||
stop_sequence: null,
|
||||
usage: {
|
||||
input_tokens: inputTokens,
|
||||
output_tokens: 0,
|
||||
cache_creation_input_tokens: 0,
|
||||
cache_read_input_tokens: 0,
|
||||
},
|
||||
},
|
||||
} as unknown as BetaRawMessageStreamEvent
|
||||
}
|
||||
const candidate = chunk.candidates?.[0]
|
||||
const parts = candidate?.content?.parts ?? []
|
||||
|
||||
for (const part of parts) {
|
||||
if (part.functionCall) {
|
||||
if (openTextLikeBlock) {
|
||||
yield {
|
||||
type: 'content_block_stop',
|
||||
index: openTextLikeBlock.index,
|
||||
} as BetaRawMessageStreamEvent
|
||||
openTextLikeBlock = null
|
||||
}
|
||||
|
||||
sawToolUse = true
|
||||
const toolIndex = nextContentIndex++
|
||||
const toolId = `toolu_${randomUUID().replace(/-/g, '').slice(0, 24)}`
|
||||
yield {
|
||||
type: 'content_block_start',
|
||||
index: toolIndex,
|
||||
content_block: {
|
||||
type: 'tool_use',
|
||||
id: toolId,
|
||||
name: part.functionCall.name || '',
|
||||
input: {},
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
|
||||
if (part.thoughtSignature) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: toolIndex,
|
||||
delta: {
|
||||
type: 'signature_delta',
|
||||
signature: part.thoughtSignature,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
if (part.functionCall.args && Object.keys(part.functionCall.args).length > 0) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: toolIndex,
|
||||
delta: {
|
||||
type: 'input_json_delta',
|
||||
partial_json: JSON.stringify(part.functionCall.args),
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
yield {
|
||||
type: 'content_block_stop',
|
||||
index: toolIndex,
|
||||
} as BetaRawMessageStreamEvent
|
||||
continue
|
||||
}
|
||||
|
||||
const textLikeType = getTextLikeBlockType(part)
|
||||
if (textLikeType) {
|
||||
if (!openTextLikeBlock || openTextLikeBlock.type !== textLikeType) {
|
||||
if (openTextLikeBlock) {
|
||||
yield {
|
||||
type: 'content_block_stop',
|
||||
index: openTextLikeBlock.index,
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
openTextLikeBlock = {
|
||||
index: nextContentIndex++,
|
||||
type: textLikeType,
|
||||
}
|
||||
|
||||
yield {
|
||||
type: 'content_block_start',
|
||||
index: openTextLikeBlock.index,
|
||||
content_block:
|
||||
textLikeType === 'thinking'
|
||||
? {
|
||||
type: 'thinking',
|
||||
thinking: '',
|
||||
signature: '',
|
||||
}
|
||||
: {
|
||||
type: 'text',
|
||||
text: '',
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
if (part.text) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: openTextLikeBlock.index,
|
||||
delta:
|
||||
textLikeType === 'thinking'
|
||||
? {
|
||||
type: 'thinking_delta',
|
||||
thinking: part.text,
|
||||
}
|
||||
: {
|
||||
type: 'text_delta',
|
||||
text: part.text,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
if (part.thoughtSignature) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: openTextLikeBlock.index,
|
||||
delta: {
|
||||
type: 'signature_delta',
|
||||
signature: part.thoughtSignature,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
continue
|
||||
}
|
||||
|
||||
if (part.thoughtSignature && openTextLikeBlock) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: openTextLikeBlock.index,
|
||||
delta: {
|
||||
type: 'signature_delta',
|
||||
signature: part.thoughtSignature,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
}
|
||||
|
||||
if (candidate?.finishReason) {
|
||||
finishReason = candidate.finishReason
|
||||
}
|
||||
}
|
||||
|
||||
if (!started) {
|
||||
return
|
||||
}
|
||||
|
||||
if (openTextLikeBlock) {
|
||||
yield {
|
||||
type: 'content_block_stop',
|
||||
index: openTextLikeBlock.index,
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
if (!stopped) {
|
||||
yield {
|
||||
type: 'message_delta',
|
||||
delta: {
|
||||
stop_reason: mapGeminiFinishReason(finishReason, sawToolUse),
|
||||
stop_sequence: null,
|
||||
},
|
||||
usage: {
|
||||
output_tokens: outputTokens,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
|
||||
yield {
|
||||
type: 'message_stop',
|
||||
} as BetaRawMessageStreamEvent
|
||||
stopped = true
|
||||
}
|
||||
}
|
||||
|
||||
function getTextLikeBlockType(
|
||||
part: GeminiPart,
|
||||
): 'text' | 'thinking' | null {
|
||||
if (typeof part.text !== 'string') {
|
||||
return null
|
||||
}
|
||||
return part.thought ? 'thinking' : 'text'
|
||||
}
|
||||
|
||||
function mapGeminiFinishReason(
|
||||
reason: string | undefined,
|
||||
sawToolUse: boolean,
|
||||
): string {
|
||||
switch (reason) {
|
||||
case 'MAX_TOKENS':
|
||||
return 'max_tokens'
|
||||
case 'STOP':
|
||||
case 'FINISH_REASON_UNSPECIFIED':
|
||||
case 'SAFETY':
|
||||
case 'RECITATION':
|
||||
case 'BLOCKLIST':
|
||||
case 'PROHIBITED_CONTENT':
|
||||
case 'SPII':
|
||||
case 'MALFORMED_FUNCTION_CALL':
|
||||
default:
|
||||
return sawToolUse ? 'tool_use' : 'end_turn'
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,86 @@
|
||||
export const GEMINI_THOUGHT_SIGNATURE_FIELD = '_geminiThoughtSignature'
|
||||
|
||||
export type GeminiFunctionCall = {
|
||||
name?: string
|
||||
args?: Record<string, unknown>
|
||||
}
|
||||
|
||||
export type GeminiFunctionResponse = {
|
||||
name?: string
|
||||
response?: Record<string, unknown>
|
||||
}
|
||||
|
||||
export type GeminiInlineData = {
|
||||
mimeType: string
|
||||
data: string
|
||||
}
|
||||
|
||||
export type GeminiPart = {
|
||||
text?: string
|
||||
thought?: boolean
|
||||
thoughtSignature?: string
|
||||
functionCall?: GeminiFunctionCall
|
||||
functionResponse?: GeminiFunctionResponse
|
||||
inlineData?: GeminiInlineData
|
||||
}
|
||||
|
||||
export type GeminiContent = {
|
||||
role: 'user' | 'model'
|
||||
parts: GeminiPart[]
|
||||
}
|
||||
|
||||
export type GeminiFunctionDeclaration = {
|
||||
name: string
|
||||
description?: string
|
||||
parameters?: Record<string, unknown>
|
||||
parametersJsonSchema?: Record<string, unknown>
|
||||
}
|
||||
|
||||
export type GeminiTool = {
|
||||
functionDeclarations: GeminiFunctionDeclaration[]
|
||||
}
|
||||
|
||||
export type GeminiFunctionCallingConfig = {
|
||||
mode: 'AUTO' | 'ANY' | 'NONE'
|
||||
allowedFunctionNames?: string[]
|
||||
}
|
||||
|
||||
export type GeminiGenerateContentRequest = {
|
||||
contents: GeminiContent[]
|
||||
systemInstruction?: {
|
||||
parts: Array<{ text: string }>
|
||||
}
|
||||
tools?: GeminiTool[]
|
||||
toolConfig?: {
|
||||
functionCallingConfig: GeminiFunctionCallingConfig
|
||||
}
|
||||
generationConfig?: {
|
||||
temperature?: number
|
||||
thinkingConfig?: {
|
||||
includeThoughts?: boolean
|
||||
thinkingBudget?: number
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
export type GeminiUsageMetadata = {
|
||||
promptTokenCount?: number
|
||||
candidatesTokenCount?: number
|
||||
thoughtsTokenCount?: number
|
||||
totalTokenCount?: number
|
||||
}
|
||||
|
||||
export type GeminiCandidate = {
|
||||
content?: {
|
||||
role?: string
|
||||
parts?: GeminiPart[]
|
||||
}
|
||||
finishReason?: string
|
||||
index?: number
|
||||
}
|
||||
|
||||
export type GeminiStreamChunk = {
|
||||
candidates?: GeminiCandidate[]
|
||||
usageMetadata?: GeminiUsageMetadata
|
||||
modelVersion?: string
|
||||
}
|
||||
@@ -1,298 +1,2 @@
|
||||
import type {
|
||||
BetaToolResultBlockParam,
|
||||
BetaToolUseBlock,
|
||||
} from '@anthropic-ai/sdk/resources/beta/messages/messages.mjs'
|
||||
import type { AssistantMessage, UserMessage } from '../../../types/message.js'
|
||||
import { safeParseJSON } from '../../../utils/json.js'
|
||||
import type { SystemPrompt } from '../../../utils/systemPromptType.js'
|
||||
import {
|
||||
GEMINI_THOUGHT_SIGNATURE_FIELD,
|
||||
type GeminiContent,
|
||||
type GeminiGenerateContentRequest,
|
||||
type GeminiPart,
|
||||
} from './types.js'
|
||||
|
||||
export function anthropicMessagesToGemini(
|
||||
messages: (UserMessage | AssistantMessage)[],
|
||||
systemPrompt: SystemPrompt,
|
||||
): Pick<GeminiGenerateContentRequest, 'contents' | 'systemInstruction'> {
|
||||
const contents: GeminiContent[] = []
|
||||
const toolNamesById = new Map<string, string>()
|
||||
|
||||
for (const msg of messages) {
|
||||
if (msg.type === 'assistant') {
|
||||
const content = convertInternalAssistantMessage(msg)
|
||||
if (content.parts.length > 0) {
|
||||
contents.push(content)
|
||||
}
|
||||
|
||||
const assistantContent = msg.message.content
|
||||
if (Array.isArray(assistantContent)) {
|
||||
for (const block of assistantContent) {
|
||||
if (typeof block !== 'string' && block.type === 'tool_use') {
|
||||
toolNamesById.set(block.id, block.name)
|
||||
}
|
||||
}
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if (msg.type === 'user') {
|
||||
const content = convertInternalUserMessage(msg, toolNamesById)
|
||||
if (content.parts.length > 0) {
|
||||
contents.push(content)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const systemText = systemPromptToText(systemPrompt)
|
||||
|
||||
return {
|
||||
contents,
|
||||
...(systemText
|
||||
? {
|
||||
systemInstruction: {
|
||||
parts: [{ text: systemText }],
|
||||
},
|
||||
}
|
||||
: {}),
|
||||
}
|
||||
}
|
||||
|
||||
function systemPromptToText(systemPrompt: SystemPrompt): string {
|
||||
if (!systemPrompt || systemPrompt.length === 0) return ''
|
||||
return systemPrompt.filter(Boolean).join('\n\n')
|
||||
}
|
||||
|
||||
function convertInternalUserMessage(
|
||||
msg: UserMessage,
|
||||
toolNamesById: ReadonlyMap<string, string>,
|
||||
): GeminiContent {
|
||||
const content = msg.message.content
|
||||
|
||||
if (typeof content === 'string') {
|
||||
return {
|
||||
role: 'user',
|
||||
parts: createTextGeminiParts(content),
|
||||
}
|
||||
}
|
||||
|
||||
if (!Array.isArray(content)) {
|
||||
return { role: 'user', parts: [] }
|
||||
}
|
||||
|
||||
return {
|
||||
role: 'user',
|
||||
parts: content.flatMap(block =>
|
||||
convertUserContentBlockToGeminiParts(block as unknown as string | Record<string, unknown>, toolNamesById),
|
||||
),
|
||||
}
|
||||
}
|
||||
|
||||
function convertUserContentBlockToGeminiParts(
|
||||
block: string | Record<string, unknown>,
|
||||
toolNamesById: ReadonlyMap<string, string>,
|
||||
): GeminiPart[] {
|
||||
if (typeof block === 'string') {
|
||||
return createTextGeminiParts(block)
|
||||
}
|
||||
|
||||
if (block.type === 'text') {
|
||||
return createTextGeminiParts(block.text)
|
||||
}
|
||||
|
||||
if (block.type === 'tool_result') {
|
||||
const toolResult = block as unknown as BetaToolResultBlockParam
|
||||
return [
|
||||
{
|
||||
functionResponse: {
|
||||
name: toolNamesById.get(toolResult.tool_use_id) ?? toolResult.tool_use_id,
|
||||
response: toolResultToResponseObject(toolResult),
|
||||
},
|
||||
},
|
||||
]
|
||||
}
|
||||
|
||||
// 将 Anthropic image 块转换为 Gemini inlineData
|
||||
if (block.type === 'image') {
|
||||
const source = block.source as Record<string, unknown> | undefined
|
||||
if (source?.type === 'base64' && typeof source.data === 'string') {
|
||||
const mediaType = (source.media_type as string) || 'image/png'
|
||||
return [
|
||||
{
|
||||
inlineData: {
|
||||
mimeType: mediaType,
|
||||
data: source.data,
|
||||
},
|
||||
},
|
||||
]
|
||||
}
|
||||
// url 类型的图片，Gemini 不直接支持，转为文本描述
|
||||
if (source?.type === 'url' && typeof source.url === 'string') {
|
||||
return createTextGeminiParts(`[image: ${source.url}]`)
|
||||
}
|
||||
}
|
||||
|
||||
return []
|
||||
}
|
||||
|
||||
function convertInternalAssistantMessage(msg: AssistantMessage): GeminiContent {
|
||||
const content = msg.message.content
|
||||
|
||||
if (typeof content === 'string') {
|
||||
return {
|
||||
role: 'model',
|
||||
parts: createTextGeminiParts(content),
|
||||
}
|
||||
}
|
||||
|
||||
if (!Array.isArray(content)) {
|
||||
return { role: 'model', parts: [] }
|
||||
}
|
||||
|
||||
const parts: GeminiPart[] = []
|
||||
for (const block of content) {
|
||||
if (typeof block === 'string') {
|
||||
parts.push(...createTextGeminiParts(block))
|
||||
continue
|
||||
}
|
||||
|
||||
if (block.type === 'text') {
|
||||
parts.push(
|
||||
...createTextGeminiParts(
|
||||
block.text,
|
||||
getGeminiThoughtSignature(block as unknown as Record<string, unknown>),
|
||||
),
|
||||
)
|
||||
continue
|
||||
}
|
||||
|
||||
if (block.type === 'thinking') {
|
||||
const thinkingPart = createThinkingGeminiPart(
|
||||
block.thinking,
|
||||
block.signature,
|
||||
)
|
||||
if (thinkingPart) {
|
||||
parts.push(thinkingPart)
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if (block.type === 'tool_use') {
|
||||
const toolUse = block as unknown as BetaToolUseBlock
|
||||
parts.push({
|
||||
functionCall: {
|
||||
name: toolUse.name,
|
||||
args: normalizeToolUseInput(toolUse.input),
|
||||
},
|
||||
...(getGeminiThoughtSignature(block as unknown as Record<string, unknown>) && {
|
||||
thoughtSignature: getGeminiThoughtSignature(block as unknown as Record<string, unknown>),
|
||||
}),
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
return { role: 'model', parts }
|
||||
}
|
||||
|
||||
function createTextGeminiParts(
|
||||
value: unknown,
|
||||
thoughtSignature?: string,
|
||||
): GeminiPart[] {
|
||||
if (typeof value !== 'string' || value.length === 0) {
|
||||
return []
|
||||
}
|
||||
|
||||
return [
|
||||
{
|
||||
text: value,
|
||||
...(thoughtSignature && { thoughtSignature }),
|
||||
},
|
||||
]
|
||||
}
|
||||
|
||||
function createThinkingGeminiPart(
|
||||
value: unknown,
|
||||
thoughtSignature?: string,
|
||||
): GeminiPart | undefined {
|
||||
if (typeof value !== 'string' || value.length === 0) {
|
||||
return undefined
|
||||
}
|
||||
|
||||
return {
|
||||
text: value,
|
||||
thought: true,
|
||||
...(thoughtSignature && { thoughtSignature }),
|
||||
}
|
||||
}
|
||||
|
||||
function normalizeToolUseInput(input: unknown): Record<string, unknown> {
|
||||
if (typeof input === 'string') {
|
||||
const parsed = safeParseJSON(input)
|
||||
if (parsed && typeof parsed === 'object' && !Array.isArray(parsed)) {
|
||||
return parsed as Record<string, unknown>
|
||||
}
|
||||
return parsed === null ? {} : { value: parsed }
|
||||
}
|
||||
|
||||
if (input && typeof input === 'object' && !Array.isArray(input)) {
|
||||
return input as Record<string, unknown>
|
||||
}
|
||||
|
||||
return input === undefined ? {} : { value: input }
|
||||
}
|
||||
|
||||
function toolResultToResponseObject(
|
||||
block: BetaToolResultBlockParam,
|
||||
): Record<string, unknown> {
|
||||
const result = normalizeToolResultContent(block.content)
|
||||
if (
|
||||
result &&
|
||||
typeof result === 'object' &&
|
||||
!Array.isArray(result)
|
||||
) {
|
||||
return block.is_error ? { ...(result as Record<string, unknown>), is_error: true } : result as Record<string, unknown>
|
||||
}
|
||||
|
||||
return {
|
||||
result,
|
||||
...(block.is_error ? { is_error: true } : {}),
|
||||
}
|
||||
}
|
||||
|
||||
function normalizeToolResultContent(content: unknown): unknown {
|
||||
if (typeof content === 'string') {
|
||||
const parsed = safeParseJSON(content)
|
||||
return parsed ?? content
|
||||
}
|
||||
|
||||
if (Array.isArray(content)) {
|
||||
const text = content
|
||||
.map(part => {
|
||||
if (typeof part === 'string') return part
|
||||
if (
|
||||
part &&
|
||||
typeof part === 'object' &&
|
||||
'text' in part &&
|
||||
typeof part.text === 'string'
|
||||
) {
|
||||
return part.text
|
||||
}
|
||||
return ''
|
||||
})
|
||||
.filter(Boolean)
|
||||
.join('\n')
|
||||
|
||||
const parsed = safeParseJSON(text)
|
||||
return parsed ?? text
|
||||
}
|
||||
|
||||
return content ?? ''
|
||||
}
|
||||
|
||||
function getGeminiThoughtSignature(block: Record<string, unknown>): string | undefined {
|
||||
const signature = block[GEMINI_THOUGHT_SIGNATURE_FIELD]
|
||||
return typeof signature === 'string' && signature.length > 0
|
||||
? signature
|
||||
: undefined
|
||||
}
|
||||
// Re-export from @anthropic-ai/model-provider
|
||||
export { anthropicMessagesToGemini } from '@anthropic-ai/model-provider'
|
||||
|
||||
@@ -1,285 +1,2 @@
|
||||
import type { BetaToolUnion } from '@anthropic-ai/sdk/resources/beta/messages/messages.mjs'
|
||||
import type {
|
||||
GeminiFunctionCallingConfig,
|
||||
GeminiTool,
|
||||
} from './types.js'
|
||||
|
||||
const GEMINI_JSON_SCHEMA_TYPES = new Set([
|
||||
'string',
|
||||
'number',
|
||||
'integer',
|
||||
'boolean',
|
||||
'object',
|
||||
'array',
|
||||
'null',
|
||||
])
|
||||
|
||||
function normalizeGeminiJsonSchemaType(
|
||||
value: unknown,
|
||||
): string | string[] | undefined {
|
||||
if (typeof value === 'string') {
|
||||
return GEMINI_JSON_SCHEMA_TYPES.has(value) ? value : undefined
|
||||
}
|
||||
|
||||
if (Array.isArray(value)) {
|
||||
const normalized = value.filter(
|
||||
(item): item is string =>
|
||||
typeof item === 'string' && GEMINI_JSON_SCHEMA_TYPES.has(item),
|
||||
)
|
||||
const unique = Array.from(new Set(normalized))
|
||||
if (unique.length === 0) return undefined
|
||||
return unique.length === 1 ? unique[0] : unique
|
||||
}
|
||||
|
||||
return undefined
|
||||
}
|
||||
|
||||
function inferGeminiJsonSchemaTypeFromValue(value: unknown): string | undefined {
|
||||
if (value === null) return 'null'
|
||||
if (Array.isArray(value)) return 'array'
|
||||
if (typeof value === 'string') return 'string'
|
||||
if (typeof value === 'boolean') return 'boolean'
|
||||
if (typeof value === 'number') {
|
||||
return Number.isInteger(value) ? 'integer' : 'number'
|
||||
}
|
||||
if (typeof value === 'object') return 'object'
|
||||
return undefined
|
||||
}
|
||||
|
||||
function inferGeminiJsonSchemaTypeFromEnum(
|
||||
values: unknown[],
|
||||
): string | string[] | undefined {
|
||||
const inferred = values
|
||||
.map(inferGeminiJsonSchemaTypeFromValue)
|
||||
.filter((value): value is string => value !== undefined)
|
||||
const unique = Array.from(new Set(inferred))
|
||||
if (unique.length === 0) return undefined
|
||||
return unique.length === 1 ? unique[0] : unique
|
||||
}
|
||||
|
||||
function addNullToGeminiJsonSchemaType(
|
||||
value: string | string[] | undefined,
|
||||
): string | string[] | undefined {
|
||||
if (value === undefined) return ['null']
|
||||
if (Array.isArray(value)) {
|
||||
return value.includes('null') ? value : [...value, 'null']
|
||||
}
|
||||
return value === 'null' ? value : [value, 'null']
|
||||
}
|
||||
|
||||
function sanitizeGeminiJsonSchemaProperties(
|
||||
value: unknown,
|
||||
): Record<string, Record<string, unknown>> | undefined {
|
||||
if (!value || typeof value !== 'object' || Array.isArray(value)) {
|
||||
return undefined
|
||||
}
|
||||
|
||||
const sanitizedEntries = Object.entries(value as Record<string, unknown>)
|
||||
.map(([key, schema]) => [key, sanitizeGeminiJsonSchema(schema)] as const)
|
||||
.filter(([, schema]) => Object.keys(schema).length > 0)
|
||||
|
||||
if (sanitizedEntries.length === 0) {
|
||||
return undefined
|
||||
}
|
||||
|
||||
return Object.fromEntries(sanitizedEntries)
|
||||
}
|
||||
|
||||
function sanitizeGeminiJsonSchemaArray(
|
||||
value: unknown,
|
||||
): Record<string, unknown>[] | undefined {
|
||||
if (!Array.isArray(value)) return undefined
|
||||
|
||||
const sanitized = value
|
||||
.map(item => sanitizeGeminiJsonSchema(item))
|
||||
.filter(item => Object.keys(item).length > 0)
|
||||
|
||||
return sanitized.length > 0 ? sanitized : undefined
|
||||
}
|
||||
|
||||
function sanitizeGeminiJsonSchema(
|
||||
schema: unknown,
|
||||
): Record<string, unknown> {
|
||||
if (!schema || typeof schema !== 'object' || Array.isArray(schema)) {
|
||||
return {}
|
||||
}
|
||||
|
||||
const source = schema as Record<string, unknown>
|
||||
const result: Record<string, unknown> = {}
|
||||
|
||||
let type = normalizeGeminiJsonSchemaType(source.type)
|
||||
|
||||
if (source.const !== undefined) {
|
||||
result.enum = [source.const]
|
||||
type = type ?? inferGeminiJsonSchemaTypeFromValue(source.const)
|
||||
} else if (Array.isArray(source.enum) && source.enum.length > 0) {
|
||||
result.enum = source.enum
|
||||
type = type ?? inferGeminiJsonSchemaTypeFromEnum(source.enum)
|
||||
}
|
||||
|
||||
if (!type) {
|
||||
if (source.properties && typeof source.properties === 'object') {
|
||||
type = 'object'
|
||||
} else if (source.items !== undefined || source.prefixItems !== undefined) {
|
||||
type = 'array'
|
||||
}
|
||||
}
|
||||
|
||||
if (source.nullable === true) {
|
||||
type = addNullToGeminiJsonSchemaType(type)
|
||||
}
|
||||
|
||||
if (type) {
|
||||
result.type = type
|
||||
}
|
||||
|
||||
if (typeof source.title === 'string') {
|
||||
result.title = source.title
|
||||
}
|
||||
if (typeof source.description === 'string') {
|
||||
result.description = source.description
|
||||
}
|
||||
if (typeof source.format === 'string') {
|
||||
result.format = source.format
|
||||
}
|
||||
if (typeof source.pattern === 'string') {
|
||||
result.pattern = source.pattern
|
||||
}
|
||||
if (typeof source.minimum === 'number') {
|
||||
result.minimum = source.minimum
|
||||
} else if (typeof source.exclusiveMinimum === 'number') {
|
||||
result.minimum = source.exclusiveMinimum
|
||||
}
|
||||
if (typeof source.maximum === 'number') {
|
||||
result.maximum = source.maximum
|
||||
} else if (typeof source.exclusiveMaximum === 'number') {
|
||||
result.maximum = source.exclusiveMaximum
|
||||
}
|
||||
if (typeof source.minItems === 'number') {
|
||||
result.minItems = source.minItems
|
||||
}
|
||||
if (typeof source.maxItems === 'number') {
|
||||
result.maxItems = source.maxItems
|
||||
}
|
||||
if (typeof source.minLength === 'number') {
|
||||
result.minLength = source.minLength
|
||||
}
|
||||
if (typeof source.maxLength === 'number') {
|
||||
result.maxLength = source.maxLength
|
||||
}
|
||||
if (typeof source.minProperties === 'number') {
|
||||
result.minProperties = source.minProperties
|
||||
}
|
||||
if (typeof source.maxProperties === 'number') {
|
||||
result.maxProperties = source.maxProperties
|
||||
}
|
||||
|
||||
const properties = sanitizeGeminiJsonSchemaProperties(source.properties)
|
||||
if (properties) {
|
||||
result.properties = properties
|
||||
result.propertyOrdering = Object.keys(properties)
|
||||
}
|
||||
|
||||
if (Array.isArray(source.required)) {
|
||||
const required = source.required.filter(
|
||||
(item): item is string => typeof item === 'string',
|
||||
)
|
||||
if (required.length > 0) {
|
||||
result.required = required
|
||||
}
|
||||
}
|
||||
|
||||
if (typeof source.additionalProperties === 'boolean') {
|
||||
result.additionalProperties = source.additionalProperties
|
||||
} else {
|
||||
const additionalProperties = sanitizeGeminiJsonSchema(
|
||||
source.additionalProperties,
|
||||
)
|
||||
if (Object.keys(additionalProperties).length > 0) {
|
||||
result.additionalProperties = additionalProperties
|
||||
}
|
||||
}
|
||||
|
||||
const items = sanitizeGeminiJsonSchema(source.items)
|
||||
if (Object.keys(items).length > 0) {
|
||||
result.items = items
|
||||
}
|
||||
|
||||
const prefixItems = sanitizeGeminiJsonSchemaArray(source.prefixItems)
|
||||
if (prefixItems) {
|
||||
result.prefixItems = prefixItems
|
||||
}
|
||||
|
||||
const anyOf = sanitizeGeminiJsonSchemaArray(source.anyOf ?? source.oneOf)
|
||||
if (anyOf) {
|
||||
result.anyOf = anyOf
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
||||
|
||||
function sanitizeGeminiFunctionParameters(
|
||||
schema: unknown,
|
||||
): Record<string, unknown> {
|
||||
const sanitized = sanitizeGeminiJsonSchema(schema)
|
||||
if (Object.keys(sanitized).length > 0) {
|
||||
return sanitized
|
||||
}
|
||||
|
||||
return {
|
||||
type: 'object',
|
||||
properties: {},
|
||||
}
|
||||
}
|
||||
|
||||
export function anthropicToolsToGemini(tools: BetaToolUnion[]): GeminiTool[] {
|
||||
const functionDeclarations = tools
|
||||
.filter(tool => {
|
||||
const toolType = (tool as unknown as { type?: string }).type
|
||||
return tool.type === 'custom' || !('type' in tool) || toolType !== 'server'
|
||||
})
|
||||
.map(tool => {
|
||||
const anyTool = tool as unknown as Record<string, unknown>
|
||||
const name = (anyTool.name as string) || ''
|
||||
const description = (anyTool.description as string) || ''
|
||||
const inputSchema =
|
||||
(anyTool.input_schema as Record<string, unknown> | undefined) ?? {
|
||||
type: 'object',
|
||||
properties: {},
|
||||
}
|
||||
|
||||
return {
|
||||
name,
|
||||
description,
|
||||
parametersJsonSchema: sanitizeGeminiFunctionParameters(inputSchema),
|
||||
}
|
||||
})
|
||||
|
||||
return functionDeclarations.length > 0
|
||||
? [{ functionDeclarations }]
|
||||
: []
|
||||
}
|
||||
|
||||
export function anthropicToolChoiceToGemini(
|
||||
toolChoice: unknown,
|
||||
): GeminiFunctionCallingConfig | undefined {
|
||||
if (!toolChoice || typeof toolChoice !== 'object') return undefined
|
||||
|
||||
const tc = toolChoice as Record<string, unknown>
|
||||
const type = tc.type as string
|
||||
|
||||
switch (type) {
|
||||
case 'auto':
|
||||
return { mode: 'AUTO' }
|
||||
case 'any':
|
||||
return { mode: 'ANY' }
|
||||
case 'tool':
|
||||
return {
|
||||
mode: 'ANY',
|
||||
allowedFunctionNames:
|
||||
typeof tc.name === 'string' ? [tc.name] : undefined,
|
||||
}
|
||||
default:
|
||||
return undefined
|
||||
}
|
||||
}
|
||||
// Re-export from @anthropic-ai/model-provider
|
||||
export { anthropicToolsToGemini, anthropicToolChoiceToGemini } from '@anthropic-ai/model-provider'
|
||||
|
||||
@@ -1,37 +1,2 @@
|
||||
function getModelFamily(model: string): 'haiku' | 'sonnet' | 'opus' | null {
|
||||
if (/haiku/i.test(model)) return 'haiku'
|
||||
if (/opus/i.test(model)) return 'opus'
|
||||
if (/sonnet/i.test(model)) return 'sonnet'
|
||||
return null
|
||||
}
|
||||
|
||||
export function resolveGeminiModel(anthropicModel: string): string {
|
||||
if (process.env.GEMINI_MODEL) {
|
||||
return process.env.GEMINI_MODEL
|
||||
}
|
||||
|
||||
const cleanModel = anthropicModel.replace(/\[1m\]$/i, '')
|
||||
const family = getModelFamily(cleanModel)
|
||||
|
||||
if (!family) {
|
||||
return cleanModel
|
||||
}
|
||||
|
||||
// First, try Gemini-specific DEFAULT variables (separated from Anthropic)
|
||||
const geminiEnvVar = `GEMINI_DEFAULT_${family.toUpperCase()}_MODEL`
|
||||
const geminiModel = process.env[geminiEnvVar]
|
||||
if (geminiModel) {
|
||||
return geminiModel
|
||||
}
|
||||
|
||||
// Fallback to Anthropic DEFAULT variables for backward compatibility
|
||||
const sharedEnvVar = `ANTHROPIC_DEFAULT_${family.toUpperCase()}_MODEL`
|
||||
const resolvedModel = process.env[sharedEnvVar]
|
||||
if (resolvedModel) {
|
||||
return resolvedModel
|
||||
}
|
||||
|
||||
throw new Error(
|
||||
`Gemini provider requires GEMINI_MODEL or ${geminiEnvVar} (or ${sharedEnvVar} for backward compatibility) to be configured.`,
|
||||
)
|
||||
}
|
||||
// Re-export from @anthropic-ai/model-provider
|
||||
export { resolveGeminiModel } from '@anthropic-ai/model-provider'
|
||||
|
||||
@@ -1,243 +1,2 @@
|
||||
import type { BetaRawMessageStreamEvent } from '@anthropic-ai/sdk/resources/beta/messages/messages.mjs'
|
||||
import { randomUUID } from 'crypto'
|
||||
import type { GeminiPart, GeminiStreamChunk } from './types.js'
|
||||
|
||||
export async function* adaptGeminiStreamToAnthropic(
|
||||
stream: AsyncIterable<GeminiStreamChunk>,
|
||||
model: string,
|
||||
): AsyncGenerator<BetaRawMessageStreamEvent, void> {
|
||||
const messageId = `msg_${randomUUID().replace(/-/g, '').slice(0, 24)}`
|
||||
let started = false
|
||||
let stopped = false
|
||||
let nextContentIndex = 0
|
||||
let openTextLikeBlock:
|
||||
| { index: number; type: 'text' | 'thinking' }
|
||||
| null = null
|
||||
let sawToolUse = false
|
||||
let finishReason: string | undefined
|
||||
let inputTokens = 0
|
||||
let outputTokens = 0
|
||||
|
||||
for await (const chunk of stream) {
|
||||
const usage = chunk.usageMetadata
|
||||
if (usage) {
|
||||
inputTokens = usage.promptTokenCount ?? inputTokens
|
||||
outputTokens =
|
||||
(usage.candidatesTokenCount ?? 0) + (usage.thoughtsTokenCount ?? 0)
|
||||
}
|
||||
|
||||
if (!started) {
|
||||
started = true
|
||||
yield {
|
||||
type: 'message_start',
|
||||
message: {
|
||||
id: messageId,
|
||||
type: 'message',
|
||||
role: 'assistant',
|
||||
content: [],
|
||||
model,
|
||||
stop_reason: null,
|
||||
stop_sequence: null,
|
||||
usage: {
|
||||
input_tokens: inputTokens,
|
||||
output_tokens: 0,
|
||||
cache_creation_input_tokens: 0,
|
||||
cache_read_input_tokens: 0,
|
||||
},
|
||||
},
|
||||
} as unknown as BetaRawMessageStreamEvent
|
||||
}
|
||||
const candidate = chunk.candidates?.[0]
|
||||
const parts = candidate?.content?.parts ?? []
|
||||
|
||||
for (const part of parts) {
|
||||
if (part.functionCall) {
|
||||
if (openTextLikeBlock) {
|
||||
yield {
|
||||
type: 'content_block_stop',
|
||||
index: openTextLikeBlock.index,
|
||||
} as BetaRawMessageStreamEvent
|
||||
openTextLikeBlock = null
|
||||
}
|
||||
|
||||
sawToolUse = true
|
||||
const toolIndex = nextContentIndex++
|
||||
const toolId = `toolu_${randomUUID().replace(/-/g, '').slice(0, 24)}`
|
||||
yield {
|
||||
type: 'content_block_start',
|
||||
index: toolIndex,
|
||||
content_block: {
|
||||
type: 'tool_use',
|
||||
id: toolId,
|
||||
name: part.functionCall.name || '',
|
||||
input: {},
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
|
||||
if (part.thoughtSignature) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: toolIndex,
|
||||
delta: {
|
||||
type: 'signature_delta',
|
||||
signature: part.thoughtSignature,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
if (part.functionCall.args && Object.keys(part.functionCall.args).length > 0) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: toolIndex,
|
||||
delta: {
|
||||
type: 'input_json_delta',
|
||||
partial_json: JSON.stringify(part.functionCall.args),
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
yield {
|
||||
type: 'content_block_stop',
|
||||
index: toolIndex,
|
||||
} as BetaRawMessageStreamEvent
|
||||
continue
|
||||
}
|
||||
|
||||
const textLikeType = getTextLikeBlockType(part)
|
||||
if (textLikeType) {
|
||||
if (!openTextLikeBlock || openTextLikeBlock.type !== textLikeType) {
|
||||
if (openTextLikeBlock) {
|
||||
yield {
|
||||
type: 'content_block_stop',
|
||||
index: openTextLikeBlock.index,
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
openTextLikeBlock = {
|
||||
index: nextContentIndex++,
|
||||
type: textLikeType,
|
||||
}
|
||||
|
||||
yield {
|
||||
type: 'content_block_start',
|
||||
index: openTextLikeBlock.index,
|
||||
content_block:
|
||||
textLikeType === 'thinking'
|
||||
? {
|
||||
type: 'thinking',
|
||||
thinking: '',
|
||||
signature: '',
|
||||
}
|
||||
: {
|
||||
type: 'text',
|
||||
text: '',
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
if (part.text) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: openTextLikeBlock.index,
|
||||
delta:
|
||||
textLikeType === 'thinking'
|
||||
? {
|
||||
type: 'thinking_delta',
|
||||
thinking: part.text,
|
||||
}
|
||||
: {
|
||||
type: 'text_delta',
|
||||
text: part.text,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
if (part.thoughtSignature) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: openTextLikeBlock.index,
|
||||
delta: {
|
||||
type: 'signature_delta',
|
||||
signature: part.thoughtSignature,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
continue
|
||||
}
|
||||
|
||||
if (part.thoughtSignature && openTextLikeBlock) {
|
||||
yield {
|
||||
type: 'content_block_delta',
|
||||
index: openTextLikeBlock.index,
|
||||
delta: {
|
||||
type: 'signature_delta',
|
||||
signature: part.thoughtSignature,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
}
|
||||
|
||||
if (candidate?.finishReason) {
|
||||
finishReason = candidate.finishReason
|
||||
}
|
||||
}
|
||||
|
||||
if (!started) {
|
||||
return
|
||||
}
|
||||
|
||||
if (openTextLikeBlock) {
|
||||
yield {
|
||||
type: 'content_block_stop',
|
||||
index: openTextLikeBlock.index,
|
||||
} as BetaRawMessageStreamEvent
|
||||
}
|
||||
|
||||
if (!stopped) {
|
||||
yield {
|
||||
type: 'message_delta',
|
||||
delta: {
|
||||
stop_reason: mapGeminiFinishReason(finishReason, sawToolUse),
|
||||
stop_sequence: null,
|
||||
},
|
||||
usage: {
|
||||
output_tokens: outputTokens,
|
||||
},
|
||||
} as BetaRawMessageStreamEvent
|
||||
|
||||
yield {
|
||||
type: 'message_stop',
|
||||
} as BetaRawMessageStreamEvent
|
||||
stopped = true
|
||||
}
|
||||
}
|
||||
|
||||
function getTextLikeBlockType(
|
||||
part: GeminiPart,
|
||||
): 'text' | 'thinking' | null {
|
||||
if (typeof part.text !== 'string') {
|
||||
return null
|
||||
}
|
||||
return part.thought ? 'thinking' : 'text'
|
||||
}
|
||||
|
||||
function mapGeminiFinishReason(
|
||||
reason: string | undefined,
|
||||
sawToolUse: boolean,
|
||||
): string {
|
||||
switch (reason) {
|
||||
case 'MAX_TOKENS':
|
||||
return 'max_tokens'
|
||||
case 'STOP':
|
||||
case 'FINISH_REASON_UNSPECIFIED':
|
||||
case 'SAFETY':
|
||||
case 'RECITATION':
|
||||
case 'BLOCKLIST':
|
||||
case 'PROHIBITED_CONTENT':
|
||||
case 'SPII':
|
||||
case 'MALFORMED_FUNCTION_CALL':
|
||||
default:
|
||||
return sawToolUse ? 'tool_use' : 'end_turn'
|
||||
}
|
||||
}
|
||||
// Re-export from @anthropic-ai/model-provider
|
||||
export { adaptGeminiStreamToAnthropic } from '@anthropic-ai/model-provider'
|
||||
|
||||
@@ -1,86 +1,16 @@
|
||||
export const GEMINI_THOUGHT_SIGNATURE_FIELD = '_geminiThoughtSignature'
|
||||
|
||||
export type GeminiFunctionCall = {
|
||||
name?: string
|
||||
args?: Record<string, unknown>
|
||||
}
|
||||
|
||||
export type GeminiFunctionResponse = {
|
||||
name?: string
|
||||
response?: Record<string, unknown>
|
||||
}
|
||||
|
||||
export type GeminiInlineData = {
|
||||
mimeType: string
|
||||
data: string
|
||||
}
|
||||
|
||||
export type GeminiPart = {
|
||||
text?: string
|
||||
thought?: boolean
|
||||
thoughtSignature?: string
|
||||
functionCall?: GeminiFunctionCall
|
||||
functionResponse?: GeminiFunctionResponse
|
||||
inlineData?: GeminiInlineData
|
||||
}
|
||||
|
||||
export type GeminiContent = {
|
||||
role: 'user' | 'model'
|
||||
parts: GeminiPart[]
|
||||
}
|
||||
|
||||
export type GeminiFunctionDeclaration = {
|
||||
name: string
|
||||
description?: string
|
||||
parameters?: Record<string, unknown>
|
||||
parametersJsonSchema?: Record<string, unknown>
|
||||
}
|
||||
|
||||
export type GeminiTool = {
|
||||
functionDeclarations: GeminiFunctionDeclaration[]
|
||||
}
|
||||
|
||||
export type GeminiFunctionCallingConfig = {
|
||||
mode: 'AUTO' | 'ANY' | 'NONE'
|
||||
allowedFunctionNames?: string[]
|
||||
}
|
||||
|
||||
export type GeminiGenerateContentRequest = {
|
||||
contents: GeminiContent[]
|
||||
systemInstruction?: {
|
||||
parts: Array<{ text: string }>
|
||||
}
|
||||
tools?: GeminiTool[]
|
||||
toolConfig?: {
|
||||
functionCallingConfig: GeminiFunctionCallingConfig
|
||||
}
|
||||
generationConfig?: {
|
||||
temperature?: number
|
||||
thinkingConfig?: {
|
||||
includeThoughts?: boolean
|
||||
thinkingBudget?: number
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
export type GeminiUsageMetadata = {
|
||||
promptTokenCount?: number
|
||||
candidatesTokenCount?: number
|
||||
thoughtsTokenCount?: number
|
||||
totalTokenCount?: number
|
||||
}
|
||||
|
||||
export type GeminiCandidate = {
|
||||
content?: {
|
||||
role?: string
|
||||
parts?: GeminiPart[]
|
||||
}
|
||||
finishReason?: string
|
||||
index?: number
|
||||
}
|
||||
|
||||
export type GeminiStreamChunk = {
|
||||
candidates?: GeminiCandidate[]
|
||||
usageMetadata?: GeminiUsageMetadata
|
||||
modelVersion?: string
|
||||
}
|
||||
// Re-export from @anthropic-ai/model-provider
|
||||
export {
|
||||
GEMINI_THOUGHT_SIGNATURE_FIELD,
|
||||
type GeminiContent,
|
||||
type GeminiGenerateContentRequest,
|
||||
type GeminiPart,
|
||||
type GeminiStreamChunk,
|
||||
type GeminiTool,
|
||||
type GeminiFunctionCallingConfig,
|
||||
type GeminiFunctionDeclaration,
|
||||
type GeminiFunctionCall,
|
||||
type GeminiFunctionResponse,
|
||||
type GeminiInlineData,
|
||||
type GeminiUsageMetadata,
|
||||
type GeminiCandidate,
|
||||
} from '@anthropic-ai/model-provider'
|
||||
|
||||
Reference in New Issue
Block a user