/**
 * Services API Routes
 *
 * 第三方服务配置管理 REST API（如 Tavily）
 */

import { Hono } from 'hono';
import type { ServiceConfig, ServiceType } from '@ai-assistant/core';
import {
  loadProvidersConfig,
  getServiceConfig,
  saveServiceConfig,
  deleteServiceConfig,
} from '@ai-assistant/core';

export const servicesRouter = new Hono();

/** 服务元信息 */
interface ServiceInfo {
  id: ServiceType;
  name: string;
  description: string;
  website: string;
}

/** 已知服务列表 */
const KNOWN_SERVICES: ServiceInfo[] = [
  {
    id: 'tavily',
    name: 'Tavily',
    description: '网络搜索和网页内容提取 API',
    website: 'https://tavily.com',
  },
];

/**
 * GET /services - List all services
 */
servicesRouter.get('/', async (c) => {
  try {
    const config = await loadProvidersConfig();
    const services = config.services ?? {};

    const data = KNOWN_SERVICES.map((info) => {
      const serviceConfig = services[info.id];
      return {
        ...info,
        enabled: serviceConfig?.enabled ?? false,
        hasApiKey: !!serviceConfig?.apiKey,
      };
    });

    return c.json({
      success: true,
      data,
    });
  } catch (error) {
    return c.json(
      {
        success: false,
        error: error instanceof Error ? error.message : 'Failed to list services',
      },
      500
    );
  }
});

/**
 * GET /services/:id - Get service config
 */
servicesRouter.get('/:id', async (c) => {
  const id = c.req.param('id') as ServiceType;

  try {
    const info = KNOWN_SERVICES.find((s) => s.id === id);
    if (!info) {
      return c.json({ success: false, error: `Unknown service: ${id}` }, 404);
    }

    const serviceConfig = await getServiceConfig(id);

    return c.json({
      success: true,
      data: {
        ...info,
        enabled: serviceConfig?.enabled ?? false,
        hasApiKey: !!serviceConfig?.apiKey,
      },
    });
  } catch (error) {
    return c.json(
      {
        success: false,
        error: error instanceof Error ? error.message : 'Failed to get service',
      },
      500
    );
  }
});

/**
 * PUT /services/:id - Update service config
 */
servicesRouter.put('/:id', async (c) => {
  const id = c.req.param('id') as ServiceType;

  try {
    const info = KNOWN_SERVICES.find((s) => s.id === id);
    if (!info) {
      return c.json({ success: false, error: `Unknown service: ${id}` }, 404);
    }

    const body = await c.req.json();
    const { apiKey, enabled } = body as { apiKey?: string; enabled?: boolean };

    await saveServiceConfig(id, { apiKey, enabled });

    return c.json({
      success: true,
      message: `Service ${id} config updated`,
    });
  } catch (error) {
    return c.json(
      {
        success: false,
        error: error instanceof Error ? error.message : 'Failed to update service config',
      },
      400
    );
  }
});

/**
 * DELETE /services/:id - Delete service config
 */
servicesRouter.delete('/:id', async (c) => {
  const id = c.req.param('id') as ServiceType;

  try {
    await deleteServiceConfig(id);

    return c.json({
      success: true,
      message: `Service ${id} config removed`,
    });
  } catch (error) {
    return c.json(
      {
        success: false,
        error: error instanceof Error ? error.message : 'Failed to remove service config',
      },
      400
    );
  }
});