package controller

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

type System struct{}

// GetSystemTime 获取投票时间详情
func (r *System) GetSystemTime(c *gin.Context) {
	id := c.Param("system_time_id")
	if id == "" {
		responses.FailWithMessage("缺少参数", c)
		return
	}

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

	// 获取数据
	systemTimeDao := dao.SystemTimeDao{}
	systemTime, err := systemTimeDao.GetSystemTimeById(systemTimeId)
	if err != nil {
		responses.FailWithMessage("数据异常", c)
		return
	}

	// 处理返回值
	g := dto.GetSystemTimeDto(systemTime)

	responses.OkWithData(g, c)
}

// PutSystemTime 修改投票时间
func (b *System) PutSystemTime(c *gin.Context) {
	systemRequest := requests.SystemRequest{}
	req := systemRequest.PutSystemTime
	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("system_time_id")
	if id == "" {
		responses.FailWithMessage("缺少参数", c)
		return
	}

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

	// 获取数据
	systemTimeDao := dao.SystemTimeDao{}
	systemTime, err := systemTimeDao.GetSystemTimeById(systemTimeId)
	if err != nil {
		responses.FailWithMessage("数据异常", c)
		return
	}

	// 修改值
	systemTimeData := make(map[string]interface{})

	// 获取本地时区
	location, err := time.LoadLocation("Local")
	if err != nil {
		responses.FailWithMessage("修改失败", c)
		return
	}

	startTime, err := time.ParseInLocation("2006-01-02 15:04:05", req.StartTime, location)
	if err != nil {
		responses.FailWithMessage("修改失败", c)
		return
	}

	if startTime != time.Time(*systemTime.StartTime) {
		systemTimeData["start_time"] = req.StartTime
	}

	endTime, err := time.ParseInLocation("2006-01-02 15:04:05", req.EndTime, location)
	if err != nil {
		responses.FailWithMessage("修改失败", c)
		return
	}

	if endTime != time.Time(*systemTime.EndTime) {
		systemTimeData["end_time"] = req.EndTime
	}

	if len(systemTimeData) > 0 {
		// 开始事务
		tx := global.Db.Begin()
		defer func() {
			if r := recover(); r != nil {
				tx.Rollback()
			}
		}()

		err = systemTimeDao.EditSystemTimeById(tx, systemTimeId, systemTimeData)
		if err != nil {
			tx.Rollback()
			responses.FailWithMessage("操作失败", c)
			return
		}

		// 增加过期时间缓存
		redisKey := "VoteSystemTime"
		// 当前时间
		now := time.Now()

		duration := endTime.Sub(now)
		if duration < 0 {
			tx.Rollback()
			responses.FailWithMessage("结束时间错误", c)
			return
		}

		if duration > 5*time.Minute {
			duration = 5 * time.Minute
		}

		// 添加缓存
		_, err = global.Redis.Set(c, redisKey, "1", duration).Result()
		if err != nil {
			tx.Rollback()
			responses.FailWithMessage("修改失败", c)
			return
		}

		tx.Commit()
	}

	responses.Ok(c)
}