import partition from 'lodash-es/partition.js';
import React, { useCallback } from 'react';
import { logEvent } from 'src/services/analytics/index.js';
import { Box, Text } from '@anthropic/ink';
import { getSettings_DEPRECATED, updateSettingsForSource } from '../utils/settings/settings.js';
import { ConfigurableShortcutHint } from './ConfigurableShortcutHint.js';
import { SelectMulti } from './CustomSelect/SelectMulti.js';
import { Byline, Dialog, KeyboardShortcutHint } from '@anthropic/ink';
import { MCPServerDialogCopy } from './MCPServerDialogCopy.js';

type Props = {
  serverNames: string[];
  onDone(): void;
};

export function MCPServerMultiselectDialog({ serverNames, onDone }: Props): React.ReactNode {
  function onSubmit(selectedServers: string[]) {
    const currentSettings = getSettings_DEPRECATED() || {};
    const enabledServers = currentSettings.enabledMcpjsonServers || [];
    const disabledServers = currentSettings.disabledMcpjsonServers || [];

    // Use partition to separate approved and rejected servers
    const [approvedServers, rejectedServers] = partition(serverNames, server => selectedServers.includes(server));

    logEvent('tengu_mcp_multidialog_choice', {
      approved: approvedServers.length,
      rejected: rejectedServers.length,
    });

    // Update settings with approved servers
    if (approvedServers.length > 0) {
      const newEnabledServers = [...new Set([...enabledServers, ...approvedServers])];
      updateSettingsForSource('localSettings', {
        enabledMcpjsonServers: newEnabledServers,
      });
    }

    // Update settings with rejected servers
    if (rejectedServers.length > 0) {
      const newDisabledServers = [...new Set([...disabledServers, ...rejectedServers])];
      updateSettingsForSource('localSettings', {
        disabledMcpjsonServers: newDisabledServers,
      });
    }

    onDone();
  }

  // Handle ESC to reject all servers
  const handleEscRejectAll = useCallback(() => {
    const currentSettings = getSettings_DEPRECATED() || {};
    const disabledServers = currentSettings.disabledMcpjsonServers || [];

    const newDisabledServers = [...new Set([...disabledServers, ...serverNames])];

    updateSettingsForSource('localSettings', {
      disabledMcpjsonServers: newDisabledServers,
    });

    onDone();
  }, [serverNames, onDone]);

  return (
    <>
      <Dialog
        title={`${serverNames.length} new MCP servers found in .mcp.json`}
        subtitle="Select any you wish to enable."
        color="warning"
        onCancel={handleEscRejectAll}
        hideInputGuide
      >
        <MCPServerDialogCopy />

        <SelectMulti
          options={serverNames.map(server => ({
            label: server,
            value: server,
          }))}
          defaultValue={serverNames}
          onSubmit={onSubmit}
          onCancel={handleEscRejectAll}
          hideIndexes
        />
      </Dialog>
      <Box paddingX={1}>
        <Text dimColor italic>
          <Byline>
            <KeyboardShortcutHint shortcut="Space" action="select" />
            <KeyboardShortcutHint shortcut="Enter" action="confirm" />
            <ConfigurableShortcutHint
              action="confirm:no"
              context="Confirmation"
              fallback="Esc"
              description="reject all"
            />
          </Byline>
        </Text>
      </Box>
    </>
  );
}