package controllers

import (
	"encoding/json"
	"fmt"
	"github.com/gin-gonic/gin"
	"github.com/sirupsen/logrus"
	"net/http"
	"psi/constant"
	"psi/database"
	systemReq "psi/models/request"
	systemRes "psi/models/response"
	"psi/service"
	"psi/utils"
)

type CarApi struct{}

var carService = service.CarService{}

func (r *CarApi) GetCarList(c *gin.Context) {
	var req systemReq.QueryCarRequest
	if err := c.ShouldBindQuery(&req); err != nil {
		ValidAndFail(constant.LoggerChannelRequest, "查询小车列表请求参数异常", "参数错误: "+err.Error(), c, err)
		return
	}

	list, total, err := carService.GetCarList(req, database.GetDB(c))
	if err != nil {
		utils.FailWithRequestLog(constant.LoggerChannelWork, "查询小车列表异常", err, c, req)
		return
	}

	c.JSON(http.StatusOK, gin.H{
		"code": 0,
		"data": gin.H{
			"list":      list,
			"total":     total,
			"page":      req.Page,
			"page_size": req.PageSize,
		},
		"msg": "查询成功",
	})
}

func (r *CarApi) GetCarDetail(c *gin.Context) {
	idStr := c.Param("id")

	if idStr == "" {
		utils.ErrorLog(constant.LoggerChannelRequest, logrus.Fields{
			"source":  "获取小车详情请求参数异常",
			"err_msg": "ID参数不能为空",
		})
		systemRes.FailWithValidateMessage("参数错误: ID不能为空", c)
		return
	}

	var id int64
	if _, err := fmt.Sscanf(idStr, "%d", &id); err != nil || id <= 0 {
		utils.ErrorLog(constant.LoggerChannelRequest, logrus.Fields{
			"source":  "获取小车详情请求参数异常",
			"err_msg": "ID格式错误: " + idStr,
		})
		systemRes.FailWithValidateMessage("参数错误: ID格式不正确", c)
		return
	}

	car, err := carService.GetCarByID(id, database.GetDB(c))
	if err != nil {
		utils.FailWithRequestLog(constant.LoggerChannelWork, "查询小车详情异常", err, c, gin.H{"id": id})
		return
	}

	systemRes.OkWithDetailed(car, "查询成功", c)
}

func (r *CarApi) CreateCar(c *gin.Context) {
	var req systemReq.CreateCarRequest
	if err := c.ShouldBind(&req); err != nil {
		ValidAndFail(constant.LoggerChannelRequest, "创建小车请求参数异常", "参数错误: "+err.Error(), c, err)
		return
	}

	if len(req.ShopInfo) == 0 {
		info, err := parseInfo(c)
		if err != nil {
			systemRes.FailWithValidateMessage("参数错误: "+err.Error(), c)
			return
		}
		req.ShopInfo = info
	}

	userInfo := utils.GetUserInfo(c)
	id, err := carService.CreateCar(req, userInfo.ID, database.GetDB(c))
	if err != nil {
		utils.FailWithRequestLog(constant.LoggerChannelWork, "创建小车异常", err, c, req)
		return
	}

	systemRes.OkWithDetailed(gin.H{"id": id}, "创建成功", c)
}

func (r *CarApi) UpdateCar(c *gin.Context) {
	var req systemReq.UpdateCarRequest
	if err := c.ShouldBind(&req); err != nil {
		ValidAndFail(constant.LoggerChannelRequest, "更新小车请求参数异常", "参数错误: "+err.Error(), c, err)
		return
	}

	if len(req.ShopInfo) == 0 {
		info, err := parseInfo(c)
		if err != nil {
			systemRes.FailWithValidateMessage("参数错误: "+err.Error(), c)
			return
		}
		req.ShopInfo = info
	}

	userInfo := utils.GetUserInfo(c)
	if err := carService.UpdateCar(req, userInfo.ID, database.GetDB(c)); err != nil {
		utils.FailWithRequestLog(constant.LoggerChannelWork, "更新小车异常", err, c, req)
		return
	}

	systemRes.OkWithMessage("更新成功", c)
}

func (r *CarApi) DeleteCar(c *gin.Context) {
	var req systemReq.DeleteCarRequest
	if err := c.ShouldBind(&req); err != nil {
		ValidAndFail(constant.LoggerChannelRequest, "删除小车请求参数异常", "参数错误: "+err.Error(), c, err)
		return
	}

	if err := carService.DeleteCar(req.ID, database.GetDB(c)); err != nil {
		utils.FailWithRequestLog(constant.LoggerChannelWork, "删除小车异常", err, c, req)
		return
	}

	systemRes.OkWithMessage("删除成功", c)
}

func parseInfo(c *gin.Context) ([]map[string]interface{}, error) {
	var info []map[string]interface{}

	for i := 0; i < 100; i++ {
		infoStr := c.PostForm(fmt.Sprintf("shop_info[%d]", i))
		if infoStr == "" {
			break
		}

		var parsedData map[string]interface{}
		if err := json.Unmarshal([]byte(infoStr), &parsedData); err != nil {
			return nil, fmt.Errorf("第%d个shop_info参数JSON解析失败: %v", i, err)
		}

		info = append(info, parsedData)
	}

	return info, nil
}