package controller

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

type Question struct{}

// GetQuestionPage 获取题目列表-分页
func (r *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
	}

	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.GetQuestionListDto(question)

	for _, v := range g {
		// 加载一级标签
		if v.FirstLabelId != nil {
			labelDao := dao.LabelDao{}
			firstLabel, err := labelDao.GetLabelFirstById(*v.FirstLabelId)
			if err != nil {
				responses.FailWithMessage(err.Error(), c)
				return
			}

			v.LoadFirstLabel(firstLabel)
		}

		// 加载二级标签
		if v.SecondLabelId != nil {
			labelDao := dao.LabelDao{}
			secondLabel, err := labelDao.GetLabelFirstById(*v.SecondLabelId)
			if err != nil {
				responses.FailWithMessage(err.Error(), c)
				return
			}

			v.LoadSecondLabel(secondLabel)
		}
	}

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

// GetQuestion 获取题目详情
func (r *Question) GetQuestion(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
	}

	// 业务处理
	questionService := service.QuestionService{}
	g, err := questionService.GetQuestion(questionId)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.OkWithData(g, c)
}

// AddQuestion 新增题目
func (r *Question) AddQuestion(c *gin.Context) {
	questionRequest := requests.QuestionRequest{}
	req := questionRequest.AddQuestion
	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
	}

	// 业务处理
	questionService := service.QuestionService{}
	_, err := questionService.AddQuestion(req)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.Ok(c)
}

// AddQuestionTest 新增题目
func (r *Question) AddQuestionTest(c *gin.Context) {
	questionRequest := requests.QuestionRequest{}
	req := questionRequest.AddQuestionTest
	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
	}

	// 业务处理
	questionService := service.QuestionService{}
	_, err := questionService.AddQuestionTest(req)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.Ok(c)
}

// PutQuestion 修改题目
func (r *Question) PutQuestion(c *gin.Context) {
	couponRequest := requests.QuestionRequest{}
	req := couponRequest.PutQuestion
	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
	}

	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
	}

	// 业务处理
	questionService := service.QuestionService{}
	_, err = questionService.PutQuestion(questionId, req)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.Ok(c)
}

// PutQuestionStatus 修改题目状态
func (b *Question) PutQuestionStatus(c *gin.Context) {
	questionRequest := requests.QuestionRequest{}
	req := questionRequest.PutQuestionStatus
	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
	}

	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
	}

	// 获取基础分类数据
	questionDao := dao.QuestionDao{}
	question, err := questionDao.GetQuestionById(questionId)
	if err != nil {
		responses.FailWithMessage("题目异常", c)
		return
	}

	// 检测状态
	if question.QuestionStatus == req.QuestionStatus {
		responses.Ok(c)
		return
	}

	if req.QuestionStatus == 2 {
		// 检测题目关联的题库数量是否充足-减去对应数量后
		questionQaService := service.QuestionQaService{}
		res, err := questionQaService.CheckQuestionRelationQaQuantitySub(question.QuestionId, 1)
		if res == false {
			responses.FailWithMessage(err.Error(), c)
			return
		}
	}

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

	questionData := make(map[string]interface{})
	questionData["question_status"] = req.QuestionStatus
	err = questionDao.EditQuestionById(tx, questionId, questionData)
	if err != nil {
		tx.Rollback()
		responses.FailWithMessage("操作失败", c)
		return
	}

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

// PutQuestionTest 修改题目
func (r *Question) PutQuestionTest(c *gin.Context) {
	couponRequest := requests.QuestionRequest{}
	req := couponRequest.PutQuestionTest
	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
	}

	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
	}

	// 业务处理
	questionService := service.QuestionService{}
	_, err = questionService.PutQuestionTest(questionId, req)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.Ok(c)
}

// DeleteQuestion 删除题目
func (r *Question) DeleteQuestion(c *gin.Context) {
	questionRequest := requests.QuestionRequest{}
	req := questionRequest.DeleteQuestion
	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
	}

	// 业务处理
	questionService := service.QuestionService{}
	_, err := questionService.DeleteQuestion(req)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.Ok(c)
}

// GetQuestionCount 获取题目数量
func (r *Question) GetQuestionCount(c *gin.Context) {
	questionRequest := requests.QuestionRequest{}
	req := questionRequest.GetQuestionCount
	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
	}

	questionDao := dao.QuestionDao{}
	total, err := questionDao.GetQuestionCountSearch(req)
	if err != nil {
		responses.FailWithMessage(err.Error(), c)
		return
	}

	responses.OkWithData(total, c)
}