package controller

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

type Question struct{}

// GetQuestionPage 获取问题列表-分页
func (b *Question) GetQuestionPage(c *gin.Context) {
	questionRequest := requests.QuestionRequest{}
	req := questionRequest.GetQuestionPage
	if err := c.ShouldBindJSON(&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
	}

	// 获取数据
	questionDao := dao.QuestionDao{}
	question, total, err := questionDao.GetQuestionPageSearch(req, req.Page, req.PageSize)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 处理返回值
	g := dto.GetQuestionPageListDto(question)

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

// GetQuestionHot 获取问题列表-热榜
func (b *Question) GetQuestionHot(c *gin.Context) {
	// 获取数据
	questionService := service.QuestionService{}

	// 获取算一算热榜-人气数最高的9个
	hotQuestions, err := questionService.GetHotList()
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	// 处理返回值
	g := dto.GetHotQuestionListDto(hotQuestions)

	responses.OkWithData(g, c)
}

// GetQuestion 获取问题详情
func (r *Question) GetQuestion(c *gin.Context) {
	userId := c.GetInt64("UserId")

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

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

	// 获取数据
	questionDao := dao.QuestionDao{}
	question, err := questionDao.GetQuestionById(questionId)
	if err != nil {
		responses.FailWithMessage("题目错误", c)
		return
	}

	questionService := service.QuestionService{}

	// 处理问题优惠价格
	question.DiscountPrice = questionService.HandleQuestionDiscountPrice(question.DiscountPrice, question.DiscountEndTime)

	// 检测用户收藏状态
	userCollectionService := service.UserCollectionService{}
	IsCollection := userCollectionService.GetUserCollectionQuestionStatus(userId, questionId)

	// 获取用户首单价格
	firstTimePrice, err := questionService.GetUserFirstTimeBuyPrice(userId)
	if err != nil {
		responses.FailWithMessage("题目错误", c)
		return
	}

	g := dto.GetQuestionDto(question)

	// 加载数据-是否收藏
	g.LoadIsCollection(IsCollection)

	// 加载数据-首次购买价格
	g.LoadFirstTimePrice(firstTimePrice)

	// 获取问题被购买数量
	buyCount, _ := questionService.GetQuestionBuyCount(userId, questionId)

	// 加载数据-问题被购买数量
	g.LoadBuyCount(buyCount)

	responses.OkWithData(g, c)
}

// GetQuestionUnlockStatus 获取问题解锁状态
func (r *Question) GetQuestionUnlockStatus(c *gin.Context) {
	var g dto.QuestionBuyStatusDto

	userId := c.GetInt64("UserId")

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

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

	// 获取题目数据
	questionDao := dao.QuestionDao{}
	question, err := questionDao.GetQuestionById(questionId)
	if err != nil {
		responses.FailWithMessage("题目错误", c)
		return
	}

	if question.QuestionStatus != 1 {
		responses.FailWithMessage("题目错误", c)
		return
	}

	// 获取用户数据
	userDao := dao.UserDao{}
	user, err := userDao.GetUserById(userId)
	if err != nil || user == nil {
		responses.FailWithMessage("用户错误", c)
		return
	}

	// 检测用户会员
	userService := service.UserService{}
	isMember := userService.CheckUserMember(user)
	if isMember == true {
		// 用户为会员，可直接查看
		g.BuyStatus = 1
		g.BuyMode = 2
		g.ValidDate = time.Time(*user.MemberExpireDate).Format("2006-01-02 15:04:05")
		responses.OkWithData(g, c)
		return
	}

	// 获取用户订单
	orderSingleDao := dao.OrderSingleDao{}
	maps := make(map[string]interface{})
	maps["user_id"] = userId
	maps["question_id"] = questionId
	orderSingles, err := orderSingleDao.GetOrderSingleList(maps)
	if err != nil {
		responses.FailWithMessage("用户错误", c)
		return
	}

	// 是否购买过（0:否 1:是）
	for _, single := range orderSingles {
		// 订单状态（1:待支付 2:已完成 3:已取消）
		if single.OrderStatus != 2 {
			continue
		}

		// 支付状态（1:未支付 2:已支付 3:支付中 4:支付失败 5:支付超时 6:支付关闭 7:已撤销 8:转入退款）
		if single.PayStatus != 2 {
			continue
		}

		// 订单退款状态（0:无退款 1:申请退款 2:退款中 3:退款成功 4:拒绝退款 5:退款关闭 6:退款异常 7:部分退款）
		if single.RefundStatus != 0 {
			continue
		}

		// 取消状态（0:否 1:是）
		if single.CancelStatus == 1 {
			continue
		}

		if single.ValidDate == nil {
			continue
		}

		// 判断是否还在有效期内
		t := time.Time(*single.ValidDate)
		now := time.Now()
		if t.Before(now) {
			continue
		}

		g.BuyStatus = 1
		g.BuyMode = 1
		g.ValidDate = time.Time(*single.ValidDate).Format("2006-01-02 15:04:05")

		break
	}

	responses.OkWithData(g, c)
	return
}

// PutQuestionClickCount 增加问题点击次数
func (r *Question) PutQuestionClickCount(c *gin.Context) {
	id := c.Param("question_id")
	if id == "" {
		responses.FailWithMessage("缺少参数", c)
		return
	}

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

	// 获取题目数据
	questionDao := dao.QuestionDao{}
	_, err = questionDao.GetQuestionById(questionId)
	if err != nil {
		responses.FailWithMessage("题目错误", c)
		return
	}

	// 开始事务
	tx := global.Db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
			utils.LogJsonErr("操作失败", r)
			responses.FailWithMessage("操作失败", c)
			return
		}
	}()

	err = questionDao.Inc(tx, questionId, "click_count", 1)
	if err != nil {
		tx.Rollback()
		responses.FailWithMessage("内部错误", c)
		return
	}

	tx.Commit()

	responses.Ok(c)
}

// PutQuestionSubmitCount 增加问题提交次数
func (r *Question) PutQuestionSubmitCount(c *gin.Context) {
	userId := c.GetInt64("UserId")

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

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

	// 获取题目数据
	questionDao := dao.QuestionDao{}
	_, err = questionDao.GetQuestionById(questionId)
	if err != nil {
		responses.FailWithMessage("题目错误", c)
		return
	}

	// 开始事务
	tx := global.Db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
			utils.LogJsonErr("操作失败", r)
			responses.FailWithMessage("操作失败", c)
			return
		}
	}()

	// 增加单项提交次数
	questionService := service.QuestionService{}
	res, err := questionService.AddQuestionSubmitCount(tx, questionId)
	if err != nil || res == false {
		tx.Rollback()
		responses.FailWithMessage("内部错误", c)
		return
	}

	// 增加用户单项提交次数
	userService := service.UserService{}
	res, err = userService.AddUserSingleSubmitCount(tx, userId)
	if err != nil || res == false {
		tx.Rollback()
		responses.FailWithMessage("内部错误", c)
		return
	}

	tx.Commit()

	responses.Ok(c)
}

// GetGuessUserLikeList 获取问题列表-猜你喜欢
func (b *Question) GetGuessUserLikeList(c *gin.Context) {
	userId := c.GetInt64("UserId")

	// 获取数据
	questionService := service.QuestionService{}
	questions, err := questionService.GetGuessUserLIkeList(userId)
	if err != nil {
		responses.OkWithData(nil, c)
	}

	// 处理返回值
	g := dto.GetHotQuestionListDto(questions)

	responses.OkWithData(g, c)
}