package com.linghu.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.fasterxml.jackson.databind.util.BeanUtil;
import com.linghu.model.common.ResponseResult;
import com.linghu.model.entity.Keyword;
import com.linghu.model.entity.Orders;
import com.linghu.model.dto.KeywordDto;
import com.linghu.model.dto.OrderDto;
import com.linghu.model.page.CustomPage;
import com.linghu.service.KeywordService;
import com.linghu.service.OrderService;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.util.Date;
import java.util.List;

/**
 * 订单管理接口
 */
@RestController
@RequestMapping("/orders")
@Api(value = "订单管理接口", tags = "订单管理")
public class OrderController {

    @Autowired
    private OrderService orderService;

    @Autowired
    private KeywordService keywordService;

    /**
     * 新增订单
     */
    @PostMapping
    @ApiOperation(value = "新增订单")
    public ResponseResult<Orders> add(@RequestBody OrderDto orderDto) {
        // 将dto转entity
        Orders order = new Orders();
        BeanUtils.copyProperties(orderDto, order);

        if (order.getClient_name() == null || order.getClient_name().trim().isEmpty()) {
            return ResponseResult.error("客户名称不能为空");
        }

        // 生成订单ID：日期+当天的订单数量（如：202507060001）
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");
        String dateStr = dateFormat.format(new Date());

        // 查询当天订单数量
        LambdaQueryWrapper<Orders> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.likeRight(Orders::getOrder_id, dateStr);
        long count = orderService.count(queryWrapper);

        // 生成订单ID
        String orderId = String.format("%s%04d", dateStr, count + 1);
        order.setOrder_id(orderId);

        // 设置初始状态
        order.setStatus(1); // 待处理
        order.setDel_flag(0); // 未删除
        order.setCreate_time(LocalDateTime.now());
        boolean save = orderService.save(order);
        // 保存关键词
        boolean saveOrderWithKeywords = orderService.saveOrderWithKeywords(orderDto, order.getOrder_id());
        if (!saveOrderWithKeywords) {
            return ResponseResult.error("添加关键词失败");
        }
        //更新关键词数量
        LambdaQueryWrapper<Keyword> queryKeywordsQueryWrapper =  new LambdaQueryWrapper<>();
        queryKeywordsQueryWrapper.eq(Keyword::getOrder_id, order.getOrder_id());
        int count1 = keywordService.count(queryKeywordsQueryWrapper);
        order.setKeyword_num(count1);
        order.setUpdate_time(LocalDateTime.now());
        orderService.updateById(order);

        if (save) {
            return ResponseResult.success(order);
        }
        return ResponseResult.error("添加订单失败");
    }

    /**
     * 删除订单（逻辑删除）
     */
    @DeleteMapping("/{orderId}")
    @ApiOperation(value = "删除订单")
    public ResponseResult<Void> delete(@PathVariable String orderId) {
        Orders order = orderService.getById(orderId);
        if (order == null) {
            return ResponseResult.error("订单不存在");
        }

        order.setDel_flag(1);
        order.setUpdate_time(LocalDateTime.now());
        boolean success = orderService.updateById(order);

        return success ? ResponseResult.success() : ResponseResult.error("删除订单失败");
    }

    /**
     * 更新订单
     */
    @PutMapping
    @ApiOperation(value = "更新订单")
    public ResponseResult<Void> update(@RequestBody OrderDto orderDto) {
        if (orderDto.getOrder_id() == null) {
            return ResponseResult.error("订单ID不能为空");
        }
        if (orderDto.getClient_name() == null || orderDto.getClient_name().trim().isEmpty()) {
            return ResponseResult.error("客户名称不能为空");
        }

        Orders existingOrder = orderService.getById(orderDto.getOrder_id());
        if (existingOrder == null) {
            return ResponseResult.error("订单不存在");
        }

        orderDto.setUpdate_time(LocalDateTime.now());
        if (orderDto.getKeywords()!= null&&orderDto.getKeywords().trim().length() > 0){
            // 保存关键词
            boolean saveOrderWithKeywords = orderService.saveOrderWithKeywords(orderDto, orderDto.getOrder_id());
            if (!saveOrderWithKeywords) {
                return ResponseResult.error("添加关键词失败");
            }
        }
        //更新关键词数量
        LambdaQueryWrapper<Keyword> queryKeywordsQueryWrapper =  new LambdaQueryWrapper<>();
        queryKeywordsQueryWrapper.eq(Keyword::getOrder_id, orderDto.getOrder_id());
        int count1 = keywordService.count(queryKeywordsQueryWrapper);
        orderDto.setKeyword_num(count1);



        if (orderService.updateById(orderDto)) {
            return ResponseResult.success();
        }
        return ResponseResult.error("更新订单失败");
    }

    /**
     * 根据ID查询订单
     */
    @GetMapping("/{orderId}")
    @ApiOperation("根据ID查询订单")
    public ResponseResult<Orders> getById(@PathVariable String orderId) {
        Orders order = orderService.getById(orderId);
        if (order == null || order.getDel_flag() == 1) {
            return ResponseResult.error("订单不存在");
        }
        return ResponseResult.success(order);
    }

    /**
     * 查询订单列表
     */
    @GetMapping
    @ApiOperation("查询订单列表")
    public ResponseResult<CustomPage<Orders>> list(
            @RequestParam(required = false) Integer pageNum,
            @RequestParam(required = false) Integer pageSize,
            @RequestParam(required = false) String clientName,
            @RequestParam(required = false) Integer status,
            @RequestParam(required = false) String timeRange) {

        LambdaQueryWrapper<Orders> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Orders::getDel_flag, 0);

        // 添加查询条件
        if (clientName != null && !clientName.trim().isEmpty()) {
            queryWrapper.like(Orders::getClient_name, clientName);
        }
        if (status != null) {
            queryWrapper.eq(Orders::getStatus, status);
        }
        // 改造时间筛选逻辑
        if (timeRange != null && !timeRange.trim().isEmpty()) {
            LocalDateTime now = LocalDateTime.now();
            LocalDateTime startTime = null;

            switch (timeRange.trim()) {
                case "week":
                    startTime = now.minusWeeks(1);
                    break;
                case "month":
                    startTime = now.minusMonths(1);
                    break;
                case "threeMonths":
                    startTime = now.minusMonths(3);
                    break;
                case "year":
                    startTime = now.minusYears(1);
                    break;
                default:
                    // 可添加日志记录无效参数
                    break;
            }
            if (startTime != null) {
                queryWrapper.ge(Orders::getCreate_time, startTime);
            }
        }
        // 分页查询
        if (pageNum != null && pageSize != null) {
            Page<Orders> pageInfo = new Page<>(pageNum, pageSize);
            Page<Orders> result = orderService.page(pageInfo, queryWrapper);
            return ResponseResult.success(new CustomPage<>(result));
        }

        // 不分页查询：手动创建 CustomPage
        List<Orders> list = orderService.list(queryWrapper);
        CustomPage<Orders> page = new CustomPage<>(new Page<>());
        page.setRecords(list);
        page.setTotal(list.size());

        return ResponseResult.success(page);
    }

    /**
     * 获取客户列表
     * @param
     * @return
     */
    @GetMapping("/clientList")
    @ApiOperation("获取客户列表")
    public ResponseResult<CustomPage<String>> getClientList(@RequestParam(required = false) String clientName,
                                                      @RequestParam(required = false,defaultValue = "1") Integer pageNum,
                                                      @RequestParam(required = false, defaultValue = "10") Integer pageSize) {

        Page<String> result = orderService.getClientList(clientName,pageNum, pageSize);


        return ResponseResult.success(new CustomPage<>( result));
    }


    @GetMapping("/{orderId}/keywordList")
    @ApiOperation("获取订单关联的关键词及提问词")
    public ResponseResult<List<KeywordDto>> getKeywordList(@PathVariable String orderId){
        List<KeywordDto> result = orderService.getKeywordListByOrderId(orderId);
        return ResponseResult.success(result);
    }
}