备份：修复前完整项目快照 2026-04-19
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/**
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* 项目材料管理路由
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* 遵循设计方案：采购-付款-物流-退库一体化流程设计方案.md
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* 章节：九、项目材料管理
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*
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* 功能：
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* - 材料库存：显示项目当前材料库存
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* - 采购记录：显示项目关联的所有采购订单
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* - 退库记录：显示项目材料退库记录
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* - 材料价格历史：查询材料的历史采购价格
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*/
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const express = require('express');
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const db = require('../db');
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const router = express.Router();
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/**
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* 获取项目材料库存列表
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*/
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router.get('/inventory/:projectId', async (req, res) => {
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try {
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const { projectId } = req.params;
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const result = await db.query(`
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SELECT pmi.*, p.name as product_name, p.specification
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FROM project_material_inventory pmi
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LEFT JOIN products p ON pmi.product_id = p.id
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WHERE pmi.project_id = ?
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ORDER BY p.name
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`, [projectId]);
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res.json({
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success: true,
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data: result.rows,
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count: result.rows.length
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});
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} catch (error) {
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console.error('获取项目材料库存失败:', error);
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res.status(500).json({
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success: false,
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message: '获取项目材料库存失败',
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error: error.message
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});
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}
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});
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/**
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* 获取项目材料库存汇总
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*/
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router.get('/inventory/:projectId/summary', async (req, res) => {
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try {
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const { projectId } = req.params;
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const result = await db.query(`
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SELECT
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COUNT(*) as item_count,
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SUM(purchased_quantity) as total_purchased,
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SUM(received_quantity) as total_received,
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SUM(used_quantity) as total_used,
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SUM(returned_quantity) as total_returned,
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SUM(current_quantity) as total_current,
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SUM(total_amount) as total_value
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FROM project_material_inventory
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WHERE project_id = ?
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`, [projectId]);
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res.json({
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success: true,
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data: result.rows[0]
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});
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} catch (error) {
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console.error('获取项目材料库存汇总失败:', error);
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res.status(500).json({
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success: false,
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message: '获取项目材料库存汇总失败',
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error: error.message
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});
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}
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});
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/**
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* 获取项目采购记录
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*/
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router.get('/purchases/:projectId', async (req, res) => {
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try {
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const { projectId } = req.params;
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const { status } = req.query;
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let query = `
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SELECT po.*, s.name as supplier_name,
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(SELECT SUM(total_price) FROM purchase_order_items WHERE order_id = po.id) as total_amount,
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(SELECT SUM(CASE WHEN pp.status = 'paid' THEN COALESCE(pp.actual_amount, 0) ELSE 0 END)
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FROM payment_plans pp WHERE pp.purchase_order_id = po.id) as paid_amount
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FROM purchase_orders po
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LEFT JOIN suppliers s ON po.supplier_id = s.id
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WHERE po.project_id = ?
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`;
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const params = [projectId];
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if (status) {
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query += ' AND po.status = $1';
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params.push(status);
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}
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query += ' ORDER BY po.created_at DESC';
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const result = await db.query(query, params);
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res.json({
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success: true,
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data: result.rows,
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count: result.rows.length
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});
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} catch (error) {
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console.error('获取项目采购记录失败:', error);
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res.status(500).json({
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success: false,
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message: '获取项目采购记录失败',
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error: error.message
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});
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}
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});
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/**
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* 获取项目退库记录
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*/
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router.get('/returns/:projectId', async (req, res) => {
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try {
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const { projectId } = req.params;
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const { status } = req.query;
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let query = `
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SELECT * FROM return_records
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WHERE project_id = ?
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`;
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const params = [projectId];
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if (status) {
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query += ' AND status = $1';
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params.push(status);
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}
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query += ' ORDER BY created_at DESC';
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const result = await db.query(query, params);
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const processedResults = result.rows.map(row => {
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if (row.items) {
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try {
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row.items = JSON.parse(row.items);
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} catch (e) {
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row.items = [];
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}
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}
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return row;
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});
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res.json({
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success: true,
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data: processedResults,
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count: processedResults.length
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});
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} catch (error) {
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console.error('获取项目退库记录失败:', error);
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res.status(500).json({
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success: false,
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message: '获取项目退库记录失败',
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error: error.message
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});
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}
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});
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/**
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* 获取材料价格历史
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* 遵循设计方案：每次订单确认时自动写入material_price_history表
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*/
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router.get('/price-history/:productId', async (req, res) => {
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try {
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const { productId } = req.params;
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const { supplier_id, limit } = req.query;
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let query = `
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SELECT mph.*, s.name as supplier_name, s.country as supplier_country,
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po.code as order_code
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FROM material_price_history mph
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LEFT JOIN suppliers s ON mph.supplier_id = s.id
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LEFT JOIN purchase_orders po ON mph.purchase_order_id = po.id
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WHERE mph.product_id = ?
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`;
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const params = [productId];
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if (supplier_id) {
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query += ' AND mph.supplier_id = $1';
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params.push(supplier_id);
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}
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query += ' ORDER BY mph.purchase_date DESC';
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if (limit) {
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query += ' LIMIT $1';
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params.push(parseInt(limit));
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}
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const result = await db.query(query, params);
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res.json({
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success: true,
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data: result.rows,
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count: result.rows.length
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});
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} catch (error) {
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console.error('获取材料价格历史失败:', error);
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res.status(500).json({
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success: false,
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message: '获取材料价格历史失败',
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error: error.message
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});
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}
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});
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/**
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* 获取材料平均采购价格
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*/
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router.get('/average-price/:productId', async (req, res) => {
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try {
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const { productId } = req.params;
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const result = await db.query(`
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SELECT
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AVG(unit_price) as avg_price,
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MIN(unit_price) as min_price,
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MAX(unit_price) as max_price,
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COUNT(*) as purchase_count,
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SUM(quantity) as total_quantity
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FROM material_price_history
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WHERE product_id = ?
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`, [productId]);
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res.json({
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success: true,
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data: result.rows[0]
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});
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} catch (error) {
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console.error('获取材料平均价格失败:', error);
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res.status(500).json({
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success: false,
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message: '获取材料平均价格失败',
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error: error.message
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});
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}
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});
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/**
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* 获取材料近期价格趋势
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*/
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router.get('/price-trend/:productId', async (req, res) => {
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try {
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const { productId } = req.params;
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const { months } = req.query;
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const monthLimit = parseInt(months) || 6;
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const result = await db.query(`
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SELECT
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strftime('%Y-%m', purchase_date) as month,
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AVG(unit_price) as avg_price,
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SUM(quantity) as total_quantity,
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COUNT(*) as purchase_count
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FROM material_price_history
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WHERE product_id = ?
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AND purchase_date >= date('now', '-' || ? || ' months')
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GROUP BY strftime('%Y-%m', purchase_date)
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ORDER BY month DESC
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`, [productId, monthLimit]);
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res.json({
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success: true,
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data: result.rows
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});
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} catch (error) {
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console.error('获取材料价格趋势失败:', error);
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res.status(500).json({
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success: false,
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message: '获取材料价格趋势失败',
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error: error.message
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});
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}
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});
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/**
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* 更新项目材料库存（手动调整）
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*/
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router.put('/inventory/:projectId/:productId', async (req, res) => {
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try {
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const { projectId, productId } = req.params;
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const { used_quantity, remark } = req.body;
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const existingResult = await db.query(`
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SELECT * FROM project_material_inventory
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WHERE project_id = ? AND product_id = ?
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`, [projectId, productId]);
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if (existingResult.rows.length === 0) {
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return res.status(404).json({ success: false, message: '材料库存记录不存在' });
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}
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const existing = existingResult.rows[0];
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const newUsedQty = (existing.used_quantity || 0) + (used_quantity || 0);
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const newCurrentQty = Math.max(0, (existing.current_quantity || 0) - (used_quantity || 0));
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await db.query(`
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UPDATE project_material_inventory
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SET used_quantity = ?, current_quantity = ?, updated_at = CURRENT_TIMESTAMP
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WHERE project_id = ? AND product_id = ?
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`, [newUsedQty, newCurrentQty, projectId, productId]);
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res.json({
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success: true,
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message: '库存更新成功',
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data: { used_quantity: newUsedQty, current_quantity: newCurrentQty }
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});
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} catch (error) {
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console.error('更新材料库存失败:', error);
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res.status(500).json({
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success: false,
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message: '更新材料库存失败',
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error: error.message
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});
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}
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});
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/**
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* 获取所有项目的材料库存汇总
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*/
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router.get('/all-projects-summary', async (req, res) => {
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try {
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const result = await db.query(`
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SELECT
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p.id as project_id,
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p.name as project_name,
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COUNT(pmi.id) as item_count,
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SUM(pmi.current_quantity) as total_quantity,
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SUM(pmi.total_amount) as total_value
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FROM projects p
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LEFT JOIN project_material_inventory pmi ON p.id = pmi.project_id
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WHERE p.status = 'active'
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GROUP BY p.id
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ORDER BY p.name
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`);
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res.json({
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success: true,
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data: result.rows
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});
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} catch (error) {
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console.error('获取所有项目材料汇总失败:', error);
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res.status(500).json({
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success: false,
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message: '获取所有项目材料汇总失败',
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error: error.message
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});
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}
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});
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module.exports = router;
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