package mediabookshelfmod

import (
	"91porn-server/models"
	"encoding/json"
	"errors"
	"fmt"

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

	"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.MediaBookshelf

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

func Init() {
	mdb = db.Init(table)
	initIndex()
}

func initIndex() {
	many := []mongo.IndexModel{
		{
			Keys: bson.D{{Key: "mid", Value: 1}, {Key: "uid", Value: 1}},
		},
		{
			Keys: bson.D{{Key: "uid", Value: 1}, {Key: "shelfType", Value: 1}},
		},
	}
	if _, err := coll(nil).CreateIndex(many); err != nil {
		panic(fmt.Sprintf("%s model set index err ==>[%+v]", table, err))
	}
}

// GetList 获取列表
func GetList(cond bson.M, skip, limit int64, sort bson.D) (res []MediaBookshelf, count int64, hasNext bool, err error) {
	count, err = coll(nil).Count(cond)
	if err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "GetList", table, "Count", err),
			log.Any("skip", skip),
			log.Any("limit", limit),
			log.Any("cond", cond),
			log.Any("sort", sort),
		)
		return
	}

	if len(sort) == 0 {
		sort = bson.D{{Key: "_id", Value: -1}}
	}
	opts := options.Find().SetSort(sort).SetSkip(skip).SetLimit(limit + 1)
	if err = coll(nil).Find(&res, cond, opts); err != nil {
		return
	}
	// 判断下一页
	if len(res) > int(limit) {
		hasNext = true
		res = res[:limit]
	}

	return
}

// GetDramaMediaIDs 返回有效短剧收藏，并支持按收藏时间或短剧最近更新时间排序。
func GetDramaMediaIDs(uid uint64, skip, limit int64, sortByMediaUpdate bool) (
	ids []primitive.ObjectID,
	total int64,
	hasNext bool,
	err error,
) {
	sortStage := bson.D{{Key: "readAt", Value: -1}, {Key: "_id", Value: -1}}
	if sortByMediaUpdate {
		sortStage = bson.D{
			{Key: "media.latestPublishedAt", Value: -1},
			{Key: "media.updateTime", Value: -1},
			{Key: "_id", Value: -1},
		}
	}
	type row struct {
		MID primitive.ObjectID `bson:"mid"`
	}
	type count struct {
		Total int64 `bson:"total"`
	}
	result := make([]struct {
		Rows  []row   `bson:"rows"`
		Count []count `bson:"count"`
	}, 0, 1)
	pipeline := []bson.M{
		{"$match": bson.M{"uid": uid, "shelfType": "drama"}},
		{"$lookup": bson.M{
			"from": models.Media, "localField": "mid", "foreignField": "_id", "as": "media",
		}},
		{"$unwind": "$media"},
		{"$match": bson.M{
			"media.mediaType": "drama", "media.status": 1, "media.isDelete": false,
		}},
		{"$sort": sortStage},
		{"$facet": bson.M{
			"rows": []bson.M{
				{"$skip": skip}, {"$limit": limit + 1}, {"$project": bson.M{"mid": 1}},
			},
			"count": []bson.M{{"$count": "total"}},
		}},
	}
	if err = coll(nil).Aggregate(&result, pipeline); err != nil || len(result) == 0 {
		return
	}
	if len(result[0].Count) > 0 {
		total = result[0].Count[0].Total
	}
	rows := result[0].Rows
	if len(rows) > int(limit) {
		hasNext = true
		rows = rows[:limit]
	}
	ids = make([]primitive.ObjectID, 0, len(rows))
	for _, item := range rows {
		ids = append(ids, item.MID)
	}
	return
}

// GetAll 查询全部文档
func GetAll(filter primitive.M, sort bson.D) (out []*MediaBookshelf, err error) {
	if len(sort) == 0 {
		sort = bson.D{{Key: "_id", Value: -1}}
	}
	opts := options.Find().SetSort(sort)
	if err = coll(nil).Find(&out, filter, opts); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "GetAll", 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
	}
}

// GetInfo 通过id获取详细信息
func GetInfo(id primitive.ObjectID) (MediaBookshelf, error) {
	v := MediaBookshelf{}
	if err := coll(nil).FindOne(&v, bson.M{"_id": id}); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "GetInfo", table, "FindOne", err),
			log.Any("id", id),
		)
		return v, err
	}

	if v.ID.IsZero() {
		return v, errors.New("record not found")
	}

	return v, nil
}

// GetInfoByCond 通过id获取详细信息
func GetInfoByCond(filter bson.M) (MediaBookshelf, error) {
	v := MediaBookshelf{}
	if err := coll(nil).FindOne(&v, filter); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "GetInfo", table, "FindOne", err),
			log.Any("filter", filter),
		)
		return v, err
	}

	return v, nil
}

// HasAddBookshelf 用户是否添加书架
func HasAddBookshelf(uid uint64, mIds []primitive.ObjectID) (map[primitive.ObjectID]bool, error) {
	if mIds == nil {
		mIds = []primitive.ObjectID{}
	}
	m := make(map[primitive.ObjectID]bool)
	var infos []MediaBookshelf
	query := bson.M{"uid": uid, "mid": bson.M{"$in": mIds}}
	if err := coll(nil).Find(&infos, query); err != nil {
		log.Error("IsAddBookshelf error", log.Any("uid", uid), log.Any("mIds", mIds), log.E(err))
		return m, err
	}
	for _, i := range infos {
		m[i.MID] = true
	}
	return m, nil
}

// Insert 插入记录
func Insert(t *db.MongoTool, d MediaBookshelf) (data primitive.ObjectID, err error) {
	result, err := coll(t).InsertOne(&d)
	if err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "Insert", table, "InsertOne", err))
		return
	}
	byteID, err := json.Marshal(result.InsertedID)
	if err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "Insert", table, "Marshal", err))
		return
	}
	if err = data.UnmarshalJSON(byteID); err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "Insert", table, "UnmarshalJSON", err))
		return
	}
	return
}

// UpdateByID 根据id更新数据
func UpdateByID(t *db.MongoTool, id primitive.ObjectID, data map[string]interface{}) (int64, error) {
	cond := bson.M{"_id": id}
	return update(t, cond, data)
}

// update 更新数据
func update(t *db.MongoTool, cond primitive.M, data map[string]interface{}) (int64, error) {
	result, err := coll(t).UpdateMany(cond, bson.M{"$set": bson.M(data)})
	if err != nil {
		log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "Update", table, "UpdateMany", err),
			log.Any("cond", cond),
			log.Any("update", data),
		)
		return 0, err
	}

	return result.ModifiedCount, nil
}

// DeleteByID 删除数据
func DeleteByID(t *db.MongoTool, id primitive.ObjectID) error {
	_, err := coll(t).DeleteMany(bson.M{"_id": id})
	if err != nil {
		if err == mongo.ErrNoDocuments {
			return nil
		} else {
			log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "DeleteByID", table, "DeleteMany", err), log.Any("id", id))
		}
	}
	return err
}

// DeleteByIDS 删除数据
func DeleteByIDS(t *db.MongoTool, uid uint64, ids []primitive.ObjectID) error {
	_, err := coll(t).DeleteMany(bson.M{"mid": bson.M{"$in": ids}, "uid": uid})
	if err != nil {
		if err == mongo.ErrNoDocuments {
			return nil
		} else {
			log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "DeleteByIDS", table, "DeleteMany", err), log.Any("ids", ids))
		}
	}
	return err
}

// DeleteByCond 删除数据
func DeleteByCond(t *db.MongoTool, cond bson.M) error {
	_, err := coll(t).DeleteOne(cond)
	if err != nil {
		if err == mongo.ErrNoDocuments {
			return nil
		} else {
			log.Error(fmt.Sprintf("[METHOD-%s]==> Model %s %s fail error:%+v:", "DeleteByID", table, "DeleteOne", err), log.Any("cond", cond))
		}
	}
	return err
}

// GetCount 获取书架总数
func GetCount(uid uint64) (total int64, err error) {
	total, err = coll(nil).Count(bson.M{"uid": uid})
	return
}