package mongo

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

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

const (
	CollectionName_UserInfo = "UserInfo"
)

// 创建新数据的结构体配置（文档不存在，插入新文档时使用）
func createUserInfoNewStruct(name string) bson.M {
	return bson.M{
		"_id":    name,
		"info":   domain.UserBaseInfoDomain{},
		"config": domain.UserConfigDomain{},
	}
}

// 读取指定用户的完整配置
func UserInfoReadAllConfig(name string) (*domain.UserConfigDomain, error) {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_UserInfo)

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

	// 只取 config 字段
	projection := bson.M{"config": 1}

	var config domain.UserConfigDomain
	err := collection.FindOne(ctx, filter, options.FindOne().SetProjection(projection)).Decode(&config)
	if err != nil {
		if err == mongo.ErrNoDocuments {
			// 未找到数据
			return &domain.UserConfigDomain{}, nil
		} else {
			return nil, err
		}
	}

	return &config, nil
}

// 覆盖更新指定用户的完整配置
func UserInfoUpdateAllConfig(name string, config domain.UserConfigDomain) error {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_UserInfo)

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

	// 覆盖字段（无论文档是否存在都会更新）
	updateFields := bson.M{
		"config": config,
	}

	setOnInsertFields := createUserInfoNewStruct(name)
	delete(setOnInsertFields, "config")

	update := bson.M{
		"$set":         updateFields,
		"$setOnInsert": setOnInsertFields,
	}

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

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

	return nil
}

// 读取指定用户的SiteInfoManage配置
func UserInfoReadSiteInfoManageConfig(name string) (*domain.SiteInfoManageConfig, error) {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_UserInfo)

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

	// 只取 config 字段
	projection := bson.M{"config.siteInfoManage": 1}

	var config domain.UserInfoDomain
	err := collection.FindOne(ctx, filter, options.FindOne().SetProjection(projection)).Decode(&config)
	if err != nil {
		if err == mongo.ErrNoDocuments {
			// 未找到数据
			return nil, nil
		} else {
			return nil, err
		}
	}

	return config.Config.SiteInfoManage, nil
}

// 覆盖更新指定用户的SiteInfoManage配置文件
func UserInfoUpdateSiteInfoManageConfig(name string, config domain.SiteInfoManageConfig) error {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_UserInfo)

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

	// 覆盖字段（无论文档是否存在都会更新）
	updateFields := bson.M{
		"config.siteInfoManage": config,
	}

	setOnInsertFields := createUserInfoNewStruct(name)
	delete(setOnInsertFields, "config")

	update := bson.M{
		"$set":         updateFields,
		"$setOnInsert": setOnInsertFields,
	}

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

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

	return nil
}

// 覆盖更新指定用户的SiteInfoManage配置文件中的TitleFilter
func UserInfoUpdateSiteInfoManageConfigTitleFilter(name string, config []string) error {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_UserInfo)

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

	// 覆盖字段（无论文档是否存在都会更新）
	updateFields := bson.M{
		"config.siteInfoManage.titleFilter": config,
	}

	setOnInsertFields := createUserInfoNewStruct(name)
	delete(setOnInsertFields, "config")

	update := bson.M{
		"$set":         updateFields,
		"$setOnInsert": setOnInsertFields,
	}

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

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

	return nil
}

// 覆盖更新指定用户的SiteInfoManage配置文件中的CustomQueryFilter
func UserInfoUpdateSiteInfoManageConfigCustomQueryFilter(name string, config []domain.SiteInfoQueryFilter) error {
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	collection := database.GetCollection(CollectionName_UserInfo)

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

	// 覆盖字段（无论文档是否存在都会更新）
	updateFields := bson.M{
		"config.siteInfoManage.customQueryFilter": config,
	}

	setOnInsertFields := createUserInfoNewStruct(name)
	delete(setOnInsertFields, "config")

	update := bson.M{
		"$set":         updateFields,
		"$setOnInsert": setOnInsertFields,
	}

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

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

	return nil
}