const express = require('express');
const db = require('../db-sqlite');
const { authenticate } = require('../middleware/auth');

module.exports = function(app) {
  const router = express.Router();

  router.get('/', authenticate, async (req, res) => {
    try {
      const projectsResult = await db.query('SELECT id, name, contract_amount, status, created_at, updated_at FROM projects');
      const projects = projectsResult.rows;
      res.json({ success: true, data: projects, count: projects.length });
    } catch (error) {
      console.error('获取项目列表失败:', error);
      res.status(500).json({ success: false, message: '获取项目列表失败' });
    }
  });

  router.get('/:id', authenticate, async (req, res) => {
    try {
      const { id } = req.params;
      const projectResult = await db.query('SELECT id, name, contract_amount, status, created_at, updated_at FROM projects WHERE id = ?', [id]);
      
      if (projectResult.rows.length === 0) {
        return res.status(404).json({ success: false, message: '项目不存在' });
      }
      
      const project = projectResult.rows[0];
      res.json({ success: true, data: project });
    } catch (error) {
      console.error('获取项目详情失败:', error);
      res.status(500).json({ success: false, message: '获取项目详情失败' });
    }
  });

  router.delete('/:id', authenticate, async (req, res) => {
    try {
      const { id } = req.params;
      
      const existingProject = await db.query('SELECT id FROM projects WHERE id = ?', [id]);
      if (existingProject.rows.length === 0) {
        return res.status(404).json({ success: false, message: '项目不存在' });
      }
      
      await db.query('DELETE FROM projects WHERE id = ?', [id]);
      
      res.json({ success: true, message: '项目删除成功' });
    } catch (error) {
      console.error('删除项目失败:', error);
      res.status(500).json({ success: false, message: '删除项目失败' });
    }
  });

  router.put('/:id', authenticate, async (req, res) => {
    try {
      const { id } = req.params;
      const { name, contract_amount, status } = req.body;
      
      await db.query(
        'UPDATE projects SET name = ?, contract_amount = ?, status = ?, updated_at = CURRENT_TIMESTAMP WHERE id = ?',
        [name, contract_amount, status, id]
      );
      
      const updatedProjectResult = await db.query('SELECT id, name, contract_amount, status, created_at, updated_at FROM projects WHERE id = ?', [id]);
      const updatedProject = updatedProjectResult.rows[0];
      
      res.json({ success: true, data: updatedProject });
    } catch (error) {
      console.error('更新项目信息失败:', error);
      res.status(500).json({ success: false, message: '更新项目信息失败' });
    }
  });

  router.put('/:id/contract', authenticate, async (req, res) => {
    try {
      const { id } = req.params;
      const { contract_amount } = req.body;
      
      await db.query(
        'UPDATE projects SET contract_amount = ?, updated_at = CURRENT_TIMESTAMP WHERE id = ?',
        [contract_amount, id]
      );
      
      const updatedProjectResult = await db.query('SELECT id, name, contract_amount, status, created_at, updated_at FROM projects WHERE id = ?', [id]);
      const updatedProject = updatedProjectResult.rows[0];
      
      res.json({ success: true, data: updatedProject });
    } catch (error) {
      console.error('更新项目合同失败:', error);
      res.status(500).json({ success: false, message: '更新项目合同失败' });
    }
  });

  app.use('/api/projects', router);
};