package service

import (
	"errors"
	"gorm.io/gorm"
	"pure-admin/global"
	"pure-admin/model"
	"pure-admin/model/request"
	"strconv"
)

func GetSysMissionRewardList(params request.SearchSysReward) (err error, list []model.SysMissionReward, total int64) {
	limit := params.PageSize
	offset := params.PageSize * (params.Page - 1)
	db := global.MG_DB.Model(&model.SysMissionReward{})
	db.Count(&total)
	var res []model.SysMissionReward
	err = db.Order("id desc").Offset(offset).Limit(limit).Find(&res).Error
	if err != nil {
		return err, nil, 0
	}

	return err, res, total
}

func SendSysMissionReward(uuid string, info request.IdReq) (err error) {
	var (
		checkReward  model.SysMissionReward
		checkMission model.MissionClaim
		checkVideo   model.MissionClaimVideo
	)
	err = global.MG_DB.Model(&model.SysMissionReward{}).Where("id = ?", info.ID).First(&checkReward).Error
	if errors.Is(err, gorm.ErrRecordNotFound) {
		return err
	}
	err = global.MG_DB.Model(&model.MissionClaimVideo{}).Where("id = ?", checkReward.RelationId).First(&checkVideo).Error
	if errors.Is(err, gorm.ErrRecordNotFound) {
		return err
	}
	err = global.MG_DB.Model(&model.MissionClaim{}).Where("id = ?", checkVideo.MissionClaimId).First(&checkMission).Error
	if errors.Is(err, gorm.ErrRecordNotFound) {
		return err
	}
	var bkbWallet model.Wallet
	err = global.MG_DB.Model(&model.Wallet{}).Where("platform = 'bkb' AND user_id = 'bkb'").First(&bkbWallet).Error
	if err != nil {
		return
	}
	tx := global.MG_DB.Begin()
	//修改任务状态
	err = global.MG_DB.Model(&model.SysMissionReward{}).Where("id = ?", info.ID).Update("status", 3).Error
	if err != nil {
		tx.Rollback()
		err = errors.New("update mission reward status failed")
		return
	}

	// 扣除商家锁定营销账户
	err = tx.Model(&model.Wallet{}).Where("id = ?", bkbWallet.ID).UpdateColumn("fund", gorm.Expr("fund - ?", checkReward.Bonus)).Error
	if err != nil {
		tx.Rollback()
		err = errors.New("settle seller wallet failed")
		return
	}
	var billFund model.BillFund
	billFund.UserID = "bkb"
	billFund.TransactionType = 1
	billFund.TransactionId = "MB" + generate() // mission-bill
	billFund.Title = ""
	billFund.Price = checkReward.Bonus
	billFund.Balance = bkbWallet.Fund
	billFund.Platform = "seller"
	billFund.RelatedId = strconv.Itoa(int(checkReward.ID))
	billFund.Status = 2
	err = tx.Model(&model.BillFund{}).Create(&billFund).Error
	if err != nil {
		tx.Rollback()
		return
	}
	// 结算至网红钱包-余额
	var influenceWallet model.Wallet
	err = tx.Model(&model.Wallet{}).Where("platform = 'influencer' AND user_id = ?", checkVideo.CreateBy).
		Updates(map[string]interface{}{"balance": gorm.Expr("balance + ?", checkReward.Bonus), "transit_balance": gorm.Expr("transit_balance - ?", checkReward.Bonus)}).First(&influenceWallet).Error
	if err != nil {
		tx.Rollback()
		err = errors.New("settle influencer wallet failed")
		return
	}
	// 创建任务结算账单
	var bill model.Bill
	bill.UserID = checkVideo.CreateBy
	bill.Type = "1"
	bill.Title = "平台奖励发放-" + checkReward.Title
	bill.Price = checkReward.Bonus
	bill.Balance = influenceWallet.Balance
	bill.Status = 2
	bill.Receipt = 1
	bill.Platform = "influencer"
	err = tx.Model(&model.Bill{}).Create(&bill).Error
	if err != nil {
		tx.Rollback()
		err = errors.New("create influencer mission settle bill failed")
		return
	}
	tx.Commit()
	return err
}