package dao

import (
	"assets/consts/public"
	dto "assets/model/dto/sync"
	entity "assets/model/entity/sync"
	"context"

	"gitea.com/red-future/common/db/mongo"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/gtime"
	"github.com/gogf/gf/v2/util/gconv"
	"go.mongodb.org/mongo-driver/v2/bson"
)

var SyncTask = new(syncTask)

type syncTask struct{}

// Insert 插入同步任务
func (d *syncTask) Insert(ctx context.Context, task *entity.SyncTask) (err error) {
	_, err = mongo.DB().Insert(ctx, []interface{}{task}, task.CollectionName())
	return
}

// GetOne 获取单个同步任务
func (d *syncTask) GetOne(ctx context.Context, id *bson.ObjectID) (task *entity.SyncTask, err error) {
	filter := bson.M{"_id": id}

	task = &entity.SyncTask{}
	err = mongo.DB().FindOne(ctx, filter, task, task.CollectionName())
	return task, err
}

// List 获取同步任务列表
func (d *syncTask) List(ctx context.Context, req *dto.ListSyncTaskReq) (list []*entity.SyncTask, total int64, err error) {
	// 构建查询过滤条件
	filter := d.buildListFilter(req)

	// 调用 common/db/mongo 的 Find 方法，不使用排序
	total, err = mongo.DB().Find(ctx, filter, &list, "sync_task", &req.Page, nil)
	return
}

// Update 更新同步任务
func (d *syncTask) Update(ctx context.Context, id string, updateData *entity.SyncTask) (err error) {
	objectId, err := bson.ObjectIDFromHex(id)
	if err != nil {
		return err
	}
	filter := bson.M{"_id": objectId}

	if !g.IsEmpty(updateData) {
		// 直接使用 struct 转 map，不需要额外的转换
		update := bson.M{"$set": gconv.Map(updateData)}
		_, err = mongo.DB().Update(ctx, filter, update, "sync_task")
	}
	return err
}

// UpdateStatus 更新同步任务状态
func (d *syncTask) UpdateStatus(ctx context.Context, id *bson.ObjectID, status public.SyncStatus, errorMessage string) (err error) {
	filter := bson.M{"_id": id}

	updateData := bson.M{
		"status":       status,
		"errorMessage": errorMessage,
	}

	if status == public.SyncStatusSyncing {
		updateData["startedAt"] = gtime.Now()
	} else if status == public.SyncStatusSuccess || status == public.SyncStatusFailed {
		updateData["finishedAt"] = gtime.Now()
	}

	update := bson.M{"$set": updateData}
	_, err = mongo.DB().Update(ctx, filter, update, "sync_task")
	return err
}

// UpdateErrorCount 更新错误计数
func (d *syncTask) UpdateErrorCount(ctx context.Context, id string, increment int) (err error) {
	objectId, err := bson.ObjectIDFromHex(id)
	if err != nil {
		return err
	}
	filter := bson.M{"_id": objectId}
	update := bson.M{"$inc": bson.M{"errorCount": increment}}
	_, err = mongo.DB().Update(ctx, filter, update, "sync_task")
	return err
}

// Delete 删除同步任务
func (d *syncTask) Delete(ctx context.Context, id string) (err error) {
	objectId, err := bson.ObjectIDFromHex(id)
	if err != nil {
		return err
	}
	filter := bson.M{"_id": objectId}
	_, err = mongo.DB().Delete(ctx, filter, "sync_task")
	return err
}

// GetPendingTasks 获取待处理的同步任务
func (d *syncTask) GetPendingTasks(ctx context.Context, limit int) (tasks []*entity.SyncTask, err error) {
	filter := bson.M{"status": public.SyncStatusPending}

	// 调用 common/db/mongo 的 Find 方法，不使用排序
	_, err = mongo.DB().Find(ctx, filter, &tasks, "sync_task", nil, nil)
	return tasks, err
}

// buildListFilter 构建列表查询的过滤条件
func (d *syncTask) buildListFilter(req *dto.ListSyncTaskReq) bson.M {
	filter := bson.M{}

	if !g.IsEmpty(req.Platform) {
		filter["platform"] = req.Platform
	}
	if !g.IsEmpty(req.Status) {
		filter["status"] = req.Status
	}
	if req.StartTime != nil {
		filter["createdAt"] = bson.M{"$gte": req.StartTime}
	}
	if req.EndTime != nil {
		if existingFilter, exists := filter["createdAt"]; exists {
			if existingTimeRange, ok := existingFilter.(bson.M); ok {
				existingTimeRange["$lte"] = req.EndTime
				filter["createdAt"] = existingTimeRange
			}
		} else {
			filter["createdAt"] = bson.M{"$lte": req.EndTime}
		}
	}

	return filter
}

// SyncConfigDao 同步配置DAO
var SyncConfig = new(syncConfig)

type syncConfig struct{}

// GetByPlatform 根据平台获取同步配置
func (d *syncConfig) GetByPlatform(ctx context.Context, platform public.SyncPlatform) (config *entity.ChannelConfig, err error) {
	filter := bson.M{"platform": platform}
	config = &entity.ChannelConfig{}
	err = mongo.DB().FindOne(ctx, filter, config, "sync_config")
	return config, err
}

// List 获取同步配置列表
func (d *syncConfig) List(ctx context.Context) (configs []*entity.ChannelConfig, err error) {
	_, err = mongo.DB().Find(ctx, bson.M{}, &configs, "sync_config", nil, nil)
	return configs, err
}

// Update 更新同步配置
func (d *syncConfig) Update(ctx context.Context, platform public.SyncPlatform, updateData *entity.ChannelConfig) (err error) {
	filter := bson.M{"platform": platform}

	if !g.IsEmpty(updateData) {
		// 直接使用 struct 转 map
		update := bson.M{"$set": gconv.Map(updateData)}
		_, err = mongo.DB().Update(ctx, filter, update, "sync_config")
	}
	return err
}