import { createRoute, OpenAPIHono } from '@hono/zod-openapi';
import { UserService } from '../../modules/users/user.service';
import { z } from 'zod';
import { authMiddleware } from '../../middleware/auth.middleware';
import { ErrorSchema } from '../../utils/errorHandler';
import { AppDataSource } from '../../data-source';
import { AuthContext } from '../../types/context';

const userService = new UserService(AppDataSource);

const UserSchema = z.object({
  id: z.number().openapi({ example: 1 }),
  username: z.string().openapi({ example: 'john_doe' }),
  email: z.string().email().openapi({ example: 'john@example.com' }),
  createdAt: z.string().datetime().openapi({ example: '2025-05-28T00:00:00Z' })
});

const GetUserRoute = createRoute({
  method: 'get',
  path: '/{id}',
  middleware: authMiddleware,
  request: {
    params: z.object({
      id: z.string().openapi({
        param: { name: 'id', in: 'path' },
        example: '1',
        description: '用户ID'
      })
    })
  },
  responses: {
    200: {
      description: '获取用户成功',
      content: {
        'application/json': {
          schema: UserSchema
        }
      }
    },
    404: {
      description: '用户不存在',
      content: {
        'application/json': {
          schema: ErrorSchema
        }
      }
    },
    500: {
      description: '服务器错误',
      content: {
        'application/json': {
          schema: ErrorSchema
        }
      }
    }
  }
});

const app = new OpenAPIHono<AuthContext>().openapi(GetUserRoute, async (c) => {
  try {
    const { id } = c.req.valid('param');
    const user = await userService.getUserById(parseInt(id));
    if (!user) {
      return c.json({ code: 404, message: '用户不存在' }, 404);
    }
    
    return c.json({
      id: user.id,
      username: user.username,
      email: user.email,
      createdAt: user.createdAt.toISOString()
    }, 200);
  } catch (error) {
    return c.json({ code: 500, message: '服务器错误' }, 500);
  }
});
export default app;