package coinser

import (
	"context"
	"strings"
	"time"
	"videoweb/app/service/rechargeser/jiahua"
	"videoweb/pub/common/log"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/models/rechargepackagemod"
	"videoweb/pub/models/usermod"
	"videoweb/pub/models/vipordermod"
	"videoweb/pub/mongos"
	"videoweb/pub/pubdef"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo/options"
)

// BuyCoinResp 购买金币下单响应
type BuyCoinResp struct {
	TradeNo          string `json:"tradeNo"`
	PayUrl           string `json:"payUrl"`
	PayUrlMode       string `json:"payUrlMode"`
	IsOpenNewBrowser bool   `json:"isOpenNewBrowser"`
}

// GetUserInfo 获取用户信息
func GetUserInfo(ctx context.Context, userId int64) (*usermod.User, *srvdef.SrvErr) {
	return usermod.FindOneUser(ctx, bson.M{usermod.FN.User.Id: userId})
}

// CreateCoinOrder 创建金币购买订单（统一写入 vip_order 表，OrderType=2）。
// 防重复：15 秒内同一用户+同一套餐的 pending 订单直接返回原支付链接。
func CreateCoinOrder(ctx context.Context,
	userId int64, userName string,
	packageId int64, payMode string,
	sysType string, devType string, ip string,
	districtCode string,
) (*BuyCoinResp, *srvdef.SrvErr) {

	pkg, serr := rechargepackagemod.FindOneRechargePackage(ctx, bson.M{
		rechargepackagemod.FN.RechargePackage.Id:          packageId,
		rechargepackagemod.FN.RechargePackage.PackageType: rechargepackagemod.PackageTypeCoin,
		rechargepackagemod.FN.RechargePackage.Status:      rechargepackagemod.StatusEnabled,
	})
	if serr != nil || pkg == nil {
		return nil, srvdef.New(srvdef.ErrNoData, "金币套餐不存在或已下架", "")
	}
	coinAmount := pkg.BaseCoin + pkg.GiftCoin
	if coinAmount <= 0 {
		return nil, srvdef.New(srvdef.ErrParamError, "金币套餐到账数量无效", "")
	}

	now := time.Now()
	dupFilter := bson.M{
		vipordermod.FN.VipOrder.UserId:    userId,
		vipordermod.FN.VipOrder.CoinCfgId: packageId,
		vipordermod.FN.VipOrder.OrderType: vipordermod.OrderTypeCoin,
		vipordermod.FN.VipOrder.PayMode:   payMode,
		vipordermod.FN.VipOrder.Status:    pubdef.VipOrderPending,
		vipordermod.FN.VipOrder.CreatedAt: bson.M{"$gte": now.Add(-15 * time.Second)},
	}
	existing, _ := vipordermod.FindOneVipOrder(ctx, dupFilter)
	if existing != nil && existing.PayUrl != "" {
		return &BuyCoinResp{
			TradeNo:          existing.TradeNo,
			PayUrl:           existing.PayUrl,
			PayUrlMode:       existing.PayUrlMode,
			IsOpenNewBrowser: true,
		}, nil
	}

	tradeNo := pubdef.GetTrandNoWithUUID()

	payInfo, serr := jiahua.SubmitOrder(ctx, userId, userName, tradeNo, pkg.Price, payMode, sysType, devType, ip)
	if serr != nil {
		return nil, serr
	}

	order := &vipordermod.VipOrder{
		Id:           mongos.Lid.VipOrder.Get(),
		OrderType:    vipordermod.OrderTypeCoin,
		UserId:       userId,
		CoinCfgId:    packageId, // 兼容历史字段，存购买套餐ID
		Coin:         coinAmount,
		BaseCoin:     pkg.BaseCoin,
		GiftCoin:     pkg.GiftCoin,
		Amount:       pkg.Price,
		PayMode:      payMode,
		TradeNo:      tradeNo,
		Oid:          payInfo.Oid,
		Status:       pubdef.VipOrderPending,
		PayUrl:       payInfo.PayUrl,
		PayUrlMode:   payInfo.PayUrlMode,
		PayChannel:   payInfo.PayChannel,
		PayRate:      payInfo.PayRate,
		IPAddr:       ip,
		SysType:      sysType,
		DistrictCode: strings.TrimSpace(districtCode),
		CreatedAt:    now,
		UpdatedAt:    now,
	}
	if serr = vipordermod.InsertOneVipOrder(ctx, order); serr != nil {
		log.Error("coinser:CreateCoinOrder InsertOneVipOrder failed",
			log.Any("tradeNo", tradeNo), log.E(serr))
		return nil, serr
	}

	return &BuyCoinResp{
		TradeNo:          tradeNo,
		PayUrl:           payInfo.PayUrl,
		PayUrlMode:       payInfo.PayUrlMode,
		IsOpenNewBrowser: true,
	}, nil
}

// GetCoinOrderHistory 查询用户金币购买记录
func GetCoinOrderHistory(ctx context.Context, userId int64, page, pageSize int64) (vipordermod.VipOrderList, int64, *srvdef.SrvErr) {
	filter := bson.M{
		vipordermod.FN.VipOrder.UserId:    userId,
		vipordermod.FN.VipOrder.OrderType: vipordermod.OrderTypeCoin,
	}
	total, serr := vipordermod.CountVipOrder(ctx, filter)
	if serr != nil {
		return nil, 0, serr
	}
	skip := (page - 1) * pageSize
	opts := options.Find().
		SetSort(bson.M{vipordermod.FN.VipOrder.CreatedAt: -1}).
		SetSkip(skip).
		SetLimit(pageSize)
	list, serr := vipordermod.FindManyVipOrder(ctx, filter, opts)
	return list, total, serr
}