package forum

import (
	"context"
	"fmt"
	"go_dreamfactory/comm"
	"go_dreamfactory/lego/core"
	"go_dreamfactory/lego/sys/redis"
	"go_dreamfactory/modules"
	"go_dreamfactory/pb"
	"go_dreamfactory/sys/db"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
	"go.mongodb.org/mongo-driver/x/bsonx"
)

///论坛 数据组件
type modelForumComp struct {
	modules.MCompModel
	module *Forum
}

//组件初始化接口
func (this *modelForumComp) Init(service core.IService, module core.IModule, comp core.IModuleComp, opt core.IModuleOptions) (err error) {
	this.TableName = comm.TableForum
	this.MCompModel.Init(service, module, comp, opt)
	this.module = module.(*Forum)

	//创建uid索引
	this.DB.CreateIndex(core.SqlTable(this.TableName), mongo.IndexModel{
		Keys: bsonx.Doc{{Key: "heroid", Value: bsonx.Int32(1)}},
	})
	return
}

//查询用户未读消息
func (this *modelForumComp) getComment(herocId string) (result []*pb.DBComment, err error) {
	var (
		key      string
		c        *mongo.Cursor
		n        int
		max_chat int32
	)
	result = make([]*pb.DBComment, 0)
	key = fmt.Sprintf("%s:%s", this.TableName, herocId)
	err = this.GetQueues(key, 10, &result)
	if err == redis.RedisNil {
		//query from mgo
		if c, err = this.DB.Find(core.SqlTable(this.TableName), bson.M{"heroid": herocId}); err != nil {
			return
		} else {
			result = make([]*pb.DBComment, c.RemainingBatchLength())
			for c.Next(context.Background()) {
				chat := &pb.DBComment{}
				if err = c.Decode(chat); err != nil {
					this.module.Errorf("err:%v", err)
				}
				result[n] = chat
				n++
			}
			if len(result) > 0 {
				this.addCommentChache(key, int64(max_chat), result...)
			}
		}
	}
	return
}

///发布评论
func (this *modelForumComp) releaseComment(comment *pb.DBComment) (err error) {
	key := fmt.Sprintf("%s:%s", this.TableName, comment.Heroid)
	if err = this.addCommentChache(key, 99, comment); err != nil {
		this.module.Errorln(err)
		return
	}
	if _, err = this.DB.InsertOne(core.SqlTable(this.TableName), comment); err != nil {
		this.module.Errorln(err)
		return
	}
	return
}

//添加评论到缓存中
func (this *modelForumComp) addCommentChache(key string, count int64, msgs ...*pb.DBComment) (err error) {
	var (
		data map[string]*pb.DBComment = make(map[string]*pb.DBComment, len(msgs))
	)
	for _, v := range msgs {
		data[fmt.Sprintf("%s-%s", key, v.Id)] = v
	}
	if _, err = this.AddQueues(key, count, data); err != nil {
		this.module.Errorln(err)
		return
	}
	return
}

func (this *modelForumComp) watchHero(stage string, uid string, herocid string) (hero *pb.DBHero, err error) {
	tcoon := db.ServerDBConn(stage)
	var (
		c *mongo.Cursor
	)
	if c, err = tcoon.Mgo.Find(comm.TableHero, bson.M{"uid": uid, "heroID": herocid}); err != nil {
		return
	} else {
		n := 0
		result := make([]*pb.DBHero, c.RemainingBatchLength())
		for c.Next(context.Background()) {
			hero := &pb.DBHero{}
			if err = c.Decode(hero); err != nil {
				this.module.Errorf("err:%v", err)
			}
			result[n] = hero
			n++
		}
		for _, v := range result {
			if hero == nil || hero.Lv < v.Lv {
				hero = v
			}
		}
	}
	return
}