package mongo

import (
	"context"
	"errors"
	"fwh-toolbox-server/database"
	"fwh-toolbox-server/domain"
	"fwh-toolbox-server/dto"
	"time"

	"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 (
	CollectionName_SiteInfoManageRecord = "SiteInfoManageRecord"
	CollectionName_SiteInfoManageData   = "SiteInfoManageData"
)

// 更新站点信息获取结果
func CreateSiteInfoUpdateInfo() (*primitive.ObjectID, error) {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_SiteInfoManageRecord)

	result, err := collection.InsertOne(ctx, domain.SiteInfoUpdateRecord{
		Progress:   domain.ProgressPending,
		CreateTime: time.Now(),
		UpdateTime: time.Now(),
		Total:      0,
	})
	if err != nil {
		return nil, err
	}

	id := result.InsertedID.(primitive.ObjectID)
	return &id, nil
}

// 更新站点信息获取结果
func UpdateSiteInfoUpdateResult(id primitive.ObjectID, progress domain.Progress, total uint64) error {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_SiteInfoManageRecord)

	filter := bson.M{"_id": id}

	var update map[string]interface{}
	if progress == domain.ProgressComplete {
		update = bson.M{
			"$set": bson.M{
				"progress":   progress,
				"updateTime": time.Now(),
				"total":      total,
			},
		}
	} else {
		update = bson.M{
			"$set": bson.M{
				"progress": progress,
			},
		}
	}

	_, err := collection.UpdateOne(ctx, filter, update)
	if err != nil {
		return err
	}
	return nil
}

// 获取最新站点信息记录数据
func GetSiteInfoUpdateNewRecord() (*domain.SiteInfoUpdateRecord, error) {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_SiteInfoManageRecord)

	opts := options.FindOne().SetSort(bson.D{{Key: "_id", Value: -1}})

	var result domain.SiteInfoUpdateRecord
	err := collection.FindOne(ctx, bson.M{}, opts).Decode(&result)
	if err != nil {
		if errors.Is(err, mongo.ErrNoDocuments) {
			return nil, nil // 没有数据返回空指针
		}
		return nil, err
	}
	return &result, nil
}

// 从数据库获取站点信息列表
func GetSiteInfoManageList(page, size uint, filter *domain.SiteInfoFilter, search string) (*dto.ResPage[domain.SiteInfoDomain], error) {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_SiteInfoManageData)

	mainFilter := bson.M{}
	// 条件
	if filter != nil {
		subFilterConfig := bson.M{}
		mainFilterSet := []bson.M{}
		for _, subFilter := range filter.SubFilter {
			subFilterSet := []bson.M{}
			filterConfigItem := bson.M{}
			for _, filterItem := range subFilter.Config {
				switch filterItem.Type {
				case domain.FilterEqualInt:
					// 等于指定值(整数)
					if filterItem.Para1.Int != nil {
						filterConfigItem[filterItem.Key] = bson.M{"$eq": *filterItem.Para1.Int}
					}
				case domain.FilterEqualFloat:
					// 等于指定值(浮点数)
					if filterItem.Para1.Float != nil {
						filterConfigItem[filterItem.Key] = bson.M{"$eq": *filterItem.Para1.Float}
					}
				case domain.FilterEqualString:
					// 等于指定字符串
					filterConfigItem[filterItem.Key] = bson.M{"$eq": *filterItem.Para1.String}
				case domain.FilterIncludeString:
					// 包含指定字符串
					filterConfigItem[filterItem.Key] = bson.M{"$regex": *filterItem.Para1.String, "$options": "i"} // 选项 $options：大小写不敏感 (i)
				case domain.FilterRangeInt:
					// 数值范围检索（整数）
					if filterItem.Para2 != nil {
						if filterItem.Para1.Int != nil && filterItem.Para2 != nil && filterItem.Para2.Int != nil {
							filterConfigItem[filterItem.Key] = bson.M{"$gte": *filterItem.Para1.Int, "$lte": *filterItem.Para2.Int}
						}
					}
				case domain.FilterRangeFloat:
					// 数值范围检索（浮点数）
					if filterItem.Para2 != nil {
						if filterItem.Para1.Float != nil && filterItem.Para2 != nil && filterItem.Para2.Float != nil {
							filterConfigItem[filterItem.Key] = bson.M{"$gte": *filterItem.Para1.Float, "$lte": *filterItem.Para2.Float}
						}
					}
				case domain.FilterRangeTime:
					// 数值范围检索（时间）
					if filterItem.Para1.String != nil && filterItem.Para2 != nil && filterItem.Para2.String != nil {
						// start, e1 := time.Parse(time.DateTime, *filterItem.Para1.String)
						// end, e2 := time.Parse(time.DateTime, *filterItem.Para2.String)
						// if e1 == nil && e2 == nil {
						// 	filterConfigItem[filterItem.Key] = bson.M{"$gte": start, "$lte": end}
						// }
						start := *filterItem.Para1.String
						end := *filterItem.Para2.String
						filterConfigItem[filterItem.Key] = bson.M{"$gte": start, "$lte": end}
					}
				case domain.FilterExists:
					// 判断字段是否存在或不为空
					// filterConfigItem[filterItem.Key] = bson.M{"$exists": true}
					value := *filterItem.Para1.String
					switch value {
					case "yes":
						filterConfigItem[filterItem.Key] = bson.M{"$exists": true, "$ne": nil}
					case "no":
						filterConfigItem["$or"] = bson.M{
							filterItem.Key: bson.M{"$exists": false},
							filterItem.Key: bson.M{"$eq": nil},
						}
					}

				}

				subFilterSet = append(subFilterSet, filterConfigItem)
			}

			if len(subFilterSet) > 0 {
				switch subFilter.Logic {
				case "and":
					subFilterConfig["$and"] = subFilterSet
				case "or":
					subFilterConfig["$or"] = subFilterSet
				}
			}

			mainFilterSet = append(mainFilterSet, subFilterConfig)
		}
		if len(mainFilterSet) > 0 {
			switch filter.Logic {
			case "and":
				mainFilter["$and"] = mainFilterSet
			case "or":
				mainFilter["$or"] = mainFilterSet
			}

		}
	}

	dbFilter := bson.M{}
	if len(search) > 0 {
		dbFilter["$and"] = []bson.M{
			mainFilter,
			{
				"$or": []bson.M{
					{"_id": bson.M{"$regex": search, "$options": "i"}}, // 选项 $options：大小写不敏感 (i)
					{"name": bson.M{"$regex": search, "$options": "i"}},
					{"distributorName": bson.M{"$regex": search, "$options": "i"}},
					{"installerName": bson.M{"$regex": search, "$options": "i"}},
					{"maintName": bson.M{"$regex": search, "$options": "i"}},
					{"accountName": bson.M{"$regex": search, "$options": "i"}},
					{"iccId": bson.M{"$regex": search, "$options": "i"}},
					{"imei": bson.M{"$regex": search, "$options": "i"}},
					{"fhpSn": bson.M{"$regex": search, "$options": "i"}},
					{"version": bson.M{"$regex": search, "$options": "i"}},
					{"protocolVer": bson.M{"$regex": search, "$options": "i"}},
					{"realSysHdVersion": bson.M{"$regex": search, "$options": "i"}},
					{"financierName": bson.M{"$regex": search, "$options": "i"}},
					{"remark": bson.M{"$regex": search, "$options": "i"}},
					{"country": bson.M{"$regex": search, "$options": "i"}},
					{"province": bson.M{"$regex": search, "$options": "i"}},
					{"city": bson.M{"$regex": search, "$options": "i"}},
					{"site": bson.M{"$regex": search, "$options": "i"}},
					{"jobCode": bson.M{"$regex": search, "$options": "i"}},
				},
			},
		}
	} else {
		dbFilter = mainFilter
	}

	var findOptions *options.FindOptions
	if size > 0 {
		findOptions = options.Find().
			SetSkip(int64((page - 1) * size)).
			SetLimit(int64(size))
	}

	cursor, err := collection.Find(ctx, dbFilter, findOptions)
	if err != nil {
		return nil, err
	}
	defer cursor.Close(ctx)

	var infoList []domain.SiteInfoDomain
	for cursor.Next(ctx) {
		var info domain.SiteInfoDomain
		if err := cursor.Decode(&info); err != nil {
			return nil, err
		}
		infoList = append(infoList, info)
	}

	// 查询总数
	total, err := collection.CountDocuments(ctx, dbFilter)
	if err != nil {
		return nil, err
	}

	res := dto.ResPage[domain.SiteInfoDomain]{
		Data:     infoList,
		PageSize: size,
		PageNum:  page,
		Total:    uint(total),
	}

	return &res, nil
}

// 插入站点信息数据
func InsertSiteInfoData(data domain.SiteInfoDomain) error {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_SiteInfoManageData)

	filter := bson.M{"_id": data.Sn} // 按ID匹配

	opts := options.Replace().SetUpsert(true)

	_, err := collection.ReplaceOne(ctx, filter, data, opts)
	if err != nil {
		return err
	}

	return nil
}