package controller

import (
	"github.com/gin-gonic/gin"
	"hepa-calc-admin-api/api/dao"
	"hepa-calc-admin-api/api/dto"
	"hepa-calc-admin-api/api/requests"
	"hepa-calc-admin-api/api/responses"
	"hepa-calc-admin-api/api/service"
	"hepa-calc-admin-api/global"
	"hepa-calc-admin-api/utils"
	"strconv"
	"time"
)

type OrderSingle struct{}

// GetOrderSinglePage 获取单项订单列表-分页
func (b *OrderSingle) GetOrderSinglePage(c *gin.Context) {
	orderSingleRequest := requests.OrderSingleRequest{}
	req := orderSingleRequest.GetOrderSinglePage
	if err := c.ShouldBind(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 参数验证
	if err := global.Validate.Struct(req); err != nil {
		responses.FailWithMessage(utils.Translate(err), c)
		return
	}

	if req.Page == 0 {
		req.Page = 1
	}

	if req.PageSize == 0 {
		req.PageSize = 20
	}

	userId := c.GetInt64("UserId")
	req.UserId = userId

	// 获取数据
	orderSingleDao := dao.OrderSingleDao{}
	orderSingles, total, err := orderSingleDao.GetOrderSinglePageSearch(req, req.Page, req.PageSize)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 获取单项配置
	systemSingleDao := dao.SystemSingleDao{}

	maps := make(map[string]interface{})
	systemSingle, err := systemSingleDao.GetSystemSingle(maps)
	if err != nil {
		responses.FailWithMessage("内部错误", c)
		return
	}

	// 处理返回值
	g := dto.GetOrderSingleListDto(orderSingles)

	for _, singleDto := range g {
		// 有效时间
		var validTime *time.Time

		// 计算有效期
		if singleDto.IsMember == 1 {
			validTime = singleDto.MemberExpireDate
		} else {
			if singleDto.PayTime != nil {
				payTime := singleDto.PayTime.Add(time.Duration(systemSingle.ValidDays) * 24 * time.Hour)
				validTime = &payTime
			}
		}

		singleDto.LoadValidDate(validTime)
	}

	result := make(map[string]interface{})
	result["page"] = req.Page
	result["page_size"] = req.PageSize
	result["total"] = total
	result["data"] = g
	responses.OkWithData(result, c)
}

// PutCancelOrderSingle 取消单项订单
func (b *OrderSingle) PutCancelOrderSingle(c *gin.Context) {
	id := c.Param("order_id")
	if id == "" {
		responses.FailWithMessage("缺少参数", c)
		return
	}

	// 将 id 转换为 int64 类型
	orderId, err := strconv.ParseInt(id, 10, 64)
	if err != nil {
		responses.Fail(c)
		return
	}

	// 获取订单数据
	orderSingleDao := dao.OrderSingleDao{}
	maps := make(map[string]interface{})
	maps["order_id"] = orderId
	orderSingle, err := orderSingleDao.GetOrderSingle(maps)
	if err != nil {
		responses.FailWithMessage("订单异常", c)
		return
	}

	// 开始事务
	tx := global.Db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()

	// 取消单项订单
	orderSingleService := service.OrderSingleService{}
	res, err := orderSingleService.CancelOrderSingle(tx, orderSingle.UserId, orderId, 2)
	if err != nil {
		tx.Rollback()
		responses.FailWithMessage(err.Error(), c)
		return
	}

	if res == false {
		tx.Rollback()
		responses.FailWithMessage("取消订单失败", c)
		return
	}

	tx.Commit()
	responses.Ok(c)
}

// PutOrderSingleDeleteStatus 操作单项订单删除状态
func (b *OrderSingle) PutOrderSingleDeleteStatus(c *gin.Context) {
	orderSingleRequest := requests.OrderSingleRequest{}
	req := orderSingleRequest.PutOrderSingleDeleteStatus
	if err := c.ShouldBind(&req); err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 参数验证
	if err := global.Validate.Struct(req); err != nil {
		responses.FailWithMessage(utils.Translate(err), c)
		return
	}

	if req.IsDelete != 0 && req.IsDelete != 1 {
		responses.FailWithMessage("参数错误", c)
		return
	}

	id := c.Param("order_id")
	if id == "" {
		responses.FailWithMessage("缺少参数", c)
		return
	}

	// 将 id 转换为 int64 类型
	orderId, err := strconv.ParseInt(id, 10, 64)
	if err != nil {
		responses.Fail(c)
		return
	}

	// 获取订单数据
	orderSingleDao := dao.OrderSingleDao{}
	orderSingle, err := orderSingleDao.GetOrderSingleById(orderId)
	if err != nil {
		responses.FailWithMessage("订单异常", c)
		return
	}

	// 检测订单状态
	if orderSingle.OrderStatus == 2 {
		responses.FailWithMessage("订单不允许删除", c)
		return
	}

	// 检测订单删除状态
	if orderSingle.IsDelete == req.IsDelete {
		responses.Ok(c)
		return
	}

	// 开始事务
	tx := global.Db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()

	orderSingleData := make(map[string]interface{})
	orderSingleData["is_delete"] = 1
	err = orderSingleDao.EditOrderSingleById(tx, orderId, orderSingleData)
	if err != nil {
		tx.Rollback()
		responses.FailWithMessage("删除失败", c)
		return
	}

	tx.Commit()
	responses.Ok(c)
}

// GetOrderSingle 获取单项订单详情
func (b *OrderSingle) GetOrderSingle(c *gin.Context) {
	id := c.Param("order_id")
	if id == "" {
		responses.FailWithMessage("缺少参数", c)
		return
	}

	// 将 id 转换为 int64 类型
	orderId, err := strconv.ParseInt(id, 10, 64)
	if err != nil {
		responses.Fail(c)
		return
	}

	// 获取订单数据
	orderSingleDao := dao.OrderSingleDao{}
	orderSingle, err := orderSingleDao.GetOrderSinglePreloadById(orderId)
	if err != nil {
		responses.FailWithMessage("订单异常", c)
		return
	}

	// 获取单项配置
	systemSingleDao := dao.SystemSingleDao{}

	maps := make(map[string]interface{})
	systemSingle, err := systemSingleDao.GetSystemSingle(maps)
	if err != nil {
		responses.FailWithMessage("内部错误", c)
		return
	}

	// 有效时间
	var validTime *time.Time

	// 计算有效期
	if orderSingle.User.IsMember == 1 {
		validTime = orderSingle.User.MemberExpireDate
	} else {
		if orderSingle.PayTime != nil {
			payTime := orderSingle.PayTime.Add(time.Duration(systemSingle.ValidDays) * 24 * time.Hour)
			validTime = &payTime
		}
	}

	g := dto.GetOrderSingleDto(orderSingle)

	// 加载题目数据
	g.LoadQuestion(orderSingle.Question)

	// 加载到期时间
	g.LoadValidDate(validTime)

	// 加载用户数据
	g.LoadUserAttr(orderSingle.User)

	responses.OkWithData(g, c)
}