package backpackmod

import (
	"errors"
	"fmt"
	"time"

	"91porn-server/common/db"
	"91porn-server/common/log"
	"91porn-server/models"

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

const table = models.Backpack

func coll(t *db.MongoTool) *db.MongoTool {
	if t == nil {
		return mdb.Coll(table)
	}
	return t.Coll(table)
}

// Init 索引设置
func initIndex() {
	many := []mongo.IndexModel{ //batch set indexes   //value is the type 1 or -1
		{
			Keys: bson.D{
				{Key: "uid", Value: 1},
				{Key: "status", Value: 1},
				{Key: "createTimt", Value: -1},
			},
		},
		{
			Keys: bson.D{
				{Key: "uid", Value: 1},
				{Key: "status", Value: 1},
				{Key: "useTime", Value: -1},
			},
		},
		{
			Keys: bson.D{
				{Key: "uid", Value: 1},
				{Key: "expiredTime", Value: -1},
			},
		},
	}
	if _, err := coll(nil).CreateIndex(many); err != nil {
		panic(fmt.Sprintf("backpack model set index err ==>[%+v]", err))
	}
}

// 获取个人拥有可用优惠卷列表
func GetCouponListByUID(uid uint64, goodsType int) ([]*Backpack, error) {
	var out []*Backpack = make([]*Backpack, 0)
	if err := coll(nil).Find(&out, bson.M{
		"uid":         uid,
		"goodsType":   goodsType,
		"status":      Unused,
		"expiredTime": bson.M{"$gt": time.Now()},
	}); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "GetCouponListByUID", models.Backpack, "Find", err),
			log.Any("uid", uid),
			log.Any("goodsType", goodsType),
		)
		return nil, err
	}
	return out, nil
}

// 添加物品到背包
func AddGoods(t *db.MongoTool, uid uint64, b ...Backpack) error {
	for _, item := range b {
		item.GoodsName = item.GoodsType.GetName()
		item.GoodsDesc = item.GoodsType.GetDesc()
	}
	if _, err := coll(t).InsertMany(&b); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "AddGoods", models.Backpack, "InsertMany", err),
			log.Any("uid", uid),
		)
		return err
	}
	return nil
}

// AddGoodsMany 添加物品到背包
func AddGoodsMany(t *db.MongoTool, uid uint64, b []Backpack) error {
	if _, err := coll(t).InsertMany(&b); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "AddGoodsMany", models.Backpack, "InsertMany", err),
			log.Any("uid", uid),
		)
		return err
	}
	return nil
}

// 使用物品
func UseGoods(t *db.MongoTool, id primitive.ObjectID) error {
	result, err := coll(t).UpdateOne(bson.M{"_id": id}, bson.M{"$set": bson.M{"status": Used, "useTime": time.Now()}})
	if err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "UseGoods", models.Backpack, "UpdateOne", err),
			log.Any("id", id),
		)
		return err
	}
	if result.ModifiedCount == 0 {
		err = errors.New("backpack UpdateOne ModifiedCount err")
		log.Warn(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "UseGoods", models.Backpack, "result.ModifiedCount == 0", err),
			log.Any("id", id),
		)
		return err
	}
	return nil
}

// 查询背包列表
func GetCouponList(uid uint64, types, status int, limit, page int64) ([]*Backpack, error) {
	var out []*Backpack = make([]*Backpack, 0)
	cond := bson.M{"uid": uid}
	sort := bson.M{}
	switch GoodsStatus(status) {
	case Used:
		sort["useTime"] = -1
		cond["status"] = status
	case Unused:
		cond["status"] = status
		cond["expiredTime"] = bson.M{"$gt": time.Now()}
		sort["createTime"] = 1
	case Expired:
		cond["expiredTime"] = bson.M{"$lte": time.Now()}
		sort["expiredTime"] = -1
	}
	if types > 0 {
		cond["goodsType"] = types
	}
	opts := options.Find().SetLimit(limit).SetSkip((page - 1) * limit).SetSort(sort)
	if err := coll(nil).Find(&out, cond, opts); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "GetGoodsList", models.Backpack, "Find", err),
			log.Any("uid", uid),
		)
		return nil, err
	}
	return out, nil
}

// 获取物品信息
func GetGoodsDetail(id primitive.ObjectID) (*Backpack, error) {
	var out *Backpack
	if err := coll(nil).FindOne(&out, bson.M{"_id": id}); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "GetGoodsDetail", models.Backpack, "FindOne", err),
			log.Any("id", id),
		)
		return nil, err
	}
	return out, nil
}

// 根据id获取券信息
// 如果未找到, 返回nil
func GetByID(t *db.MongoTool, id primitive.ObjectID) (*Backpack, error) {
	var bp Backpack
	if err := coll(t).FindOne(&bp, bson.M{"_id": id}); err != nil {
		return nil, err
	}
	if bp.ID != id {
		return nil, nil
	}
	return &bp, nil
}

// UseManyGoods 使用物品(多件)
func UseManyGoods(t *db.MongoTool, ids []primitive.ObjectID) (int64, error) {
	filter := bson.M{"_id": bson.M{"$in": ids}, "status": Unused}
	result, err := coll(t).UpdateMany(filter, bson.M{"$set": bson.M{"status": Used, "useTime": time.Now()}})
	if err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "UseManyGoods", models.Backpack, "UpdateOne", err),
			log.Any("id", ids),
		)
		return 0, err
	}
	return result.ModifiedCount, nil
}

// UnuseManyGoods 退换物品(多件)
func UnuseManyGoods(t *db.MongoTool, ids []primitive.ObjectID) (int64, error) {
	result, err := coll(t).UpdateMany(bson.M{"_id": bson.M{"$in": ids}, "status": Used}, bson.M{"$set": bson.M{"status": Unused}})
	if err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "UseManyGoods", models.Backpack, "UpdateOne", err),
			log.Any("id", ids),
		)
		return 0, err
	}
	return result.ModifiedCount, nil
}

// QueryAllList 分页查询文档
func QueryAllList(filter primitive.M, opts ...*options.FindOptions) (out []*Backpack, err error) {
	if err = coll(nil).Find(&out, filter, opts...); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "QueryAllList", table, "Find", err),
			log.Any("filter", filter),
			log.Any("opts", opts),
		)
		return nil, err
	}
	return
}

// QueryAllCount 查询文档条目数
func QueryAllCount(filter primitive.M) (int64, error) {
	if count, err := coll(nil).Count(filter); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "QueryAllCount", table, "Count", err),
			log.Any("filter", filter),
		)
		return 0, err
	} else {
		return count, nil
	}
}