package service

import (
	"context"
	"dsbqj-admin/app/task"
	"dsbqj-admin/model/mongo/subscribe"
	"dsbqj-admin/pkg/util"
	"errors"
	"fmt"
	"github.com/goccy/go-json"
	"github.com/kamva/mgm/v3"
	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
	"go.mongodb.org/mongo-driver/mongo/options"
)

type SubscribeOpenService struct {
	DeviceId string `json:"device_id"`
	OpenId   string `json:"open_id"`
	Module   string `json:"module"`
}

func (s *SubscribeOpenService) createSubscribe(deviceId, openId, module string) error {
	sub := &subscribe.Subscribe{
		OpenId:   openId,
		DeviceId: deviceId,
		Modules:  make(map[string]*subscribe.ModuleSubscribe),
	}

	sub.Modules[module] = &subscribe.ModuleSubscribe{
		Enabled: true,
		OpenAt:  util.GetNowSecond(),
	}

	return mgm.Coll(sub).Create(sub)
}

func (this *SubscribeOpenService) updateSubscribe(deviceId string, module string) error {
	now := util.GetNowSecond()

	filter := bson.M{"device_id": deviceId}

	update := bson.M{
		"$set": bson.M{
			"device_id": deviceId,
			"modules." + module: bson.M{
				"enabled": true,
				"open_at": now,
			},
			"updated_at": now,
		},
	}

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

	_, err := mgm.Coll(&subscribe.Subscribe{}).
		UpdateOne(context.Background(), filter, update, opts)

	return err
}

func (this *SubscribeOpenService) Open() error {
	subscribeOne := new(subscribe.Subscribe)
	err := mgm.Coll(&subscribe.Subscribe{}).First(bson.M{"device_id": this.DeviceId}, subscribeOne)
	if err != nil {
		// 1️⃣ 没有记录
		if err == mongo.ErrNoDocuments {
			// 走创建逻辑
			return this.createSubscribe(this.DeviceId, this.OpenId, this.Module)
		}

		// 2️⃣ 其他错误
		return err
	}
	return this.updateSubscribe(this.DeviceId, this.Module)
}

type SubscribeCloseService struct {
	DeviceId string `json:"device_id"`
	Module   string `json:"module"`
}

func (this *SubscribeCloseService) Close() error {
	now := util.GetNowSecond()

	filter := bson.M{
		"device_id":                           this.DeviceId,
		"modules." + this.Module + ".enabled": true,
	}

	update := bson.M{
		"$set": bson.M{
			"modules." + this.Module + ".enabled":  false,
			"modules." + this.Module + ".close_at": now,
			"updated_at":                           now,
		},
	}

	_, err := mgm.Coll(&subscribe.Subscribe{}).
		UpdateOne(context.Background(), filter, update)

	return err
}

type SubscribeCheckService struct {
	DeviceId string `json:"device_id"`
}

func (this *SubscribeCheckService) Check() error {

	return nil
}

type SubscribeSendService struct {
	DeviceId string `json:"device_id"`
	Module   string `json:"module"`
	Data     string `json:"data"`
}

func (this *SubscribeSendService) Send() error {
	var list = make([]*subscribe.Subscribe, 0)
	// 更具deviceId 和 module 获取 需要推送的用户openid 列表
	// data 应该是个json对象
	var deviceIds []string
	json.Unmarshal([]byte(this.Data), &deviceIds)

	filter := bson.M{
		"device_id":                           bson.M{"$in": deviceIds},
		"modules." + this.Module + ".enabled": true,
	}

	err := mgm.Coll(&subscribe.Subscribe{}).
		SimpleFind(&list, filter)

	// 遍历所有list 获取openid列表后 循环发送
	if err != nil {
		return err
	}

	var openIds []string
	for _, v := range list {
		openIds = append(openIds, v.OpenId)
	}

	task.SubscribeTask.Send(openIds, this.Module)
	return err
}

type SubscribeTaskService struct {
	DeviceId  string `json:"device_id"`
	Module    string `json:"module"`
	Timestamp int64  `json:"timestamp"`
}

func (this *SubscribeTaskService) Task() error {
	var key string

	switch this.Module {
	case "hangup":
		key = fmt.Sprintf("%s_hangup", this.DeviceId)
	case "autofight":
		key = fmt.Sprintf("%s_autofight", this.DeviceId)
	default:
		return errors.New("unknown module")
	}

	this.Timestamp = util.GetNowSecond() + 5*1000
	task.SubscribeTask.Append(key, this.DeviceId, this.Timestamp, this.Module)

	return nil
}