package genPool

import (
	"context"
	redisComponent "f1-game/internal/component/redis"
	"f1-game/internal/data"
	nameActor "f1-game/internal/name/actor"
	"fmt"

	cstring "github.com/cherry-game/cherry/extend/string"
	cfacade "github.com/cherry-game/cherry/facade"
	clog "github.com/cherry-game/cherry/logger"
	cactor "github.com/cherry-game/cherry/net/actor"
	cprofile "github.com/cherry-game/cherry/profile"
	"github.com/go-redis/redis/v8"
)

type (
	actor struct {
		cactor.Base
		nodeID         string
		redisClient    *redis.Client   // redis client
		redisFields    []string        // redis查询的字段
		ctx            context.Context // context
		redisKeyFormat string          // redis key
	}
)

func NewActor(nodeID string) *actor {
	actor := &actor{
		nodeID: nodeID,
		redisFields: []string{
			CountKey,
			PeriodEndTimeKey,
		},
		ctx:            context.Background(),
		redisKeyFormat: fmt.Sprintf("%s-gen-pool:%s:", cprofile.Env(), nodeID),
	}

	return actor
}

func (p *actor) AliasID() string {
	return nameActor.GenPool
}

func (p *actor) OnInit() {
	p.initRedis()
	p.loadRedisGenPoolItems()
}

func (p *actor) OnStop() {
	for _, genPoolRow := range data.GenPool.List() {
		genPoolItem, found := GetGenPoolItemCache(genPoolRow.ID, genPoolRow.ItemID)
		if !found {
			continue
		}

		if genPoolItem.Count == 0 && genPoolItem.PeriodEndTime == 0 {
			continue
		}
		p.saveGenPoolItem(genPoolItem)
	}
}

func (p *actor) OnFindChild(m *cfacade.Message) (cfacade.IActor, bool) {
	childID := m.TargetPath().ChildID
	genPoolID, ok := cstring.ToInt32(childID)
	if !ok {
		return nil, false
	}

	if !data.GenPool.ListContainID(genPoolID) {
		clog.Warnf("[actor] GenPoolCfg not found. genPoolID = %d", genPoolID)
		return nil, false
	}

	childGenPool := newActorGenPool(genPoolID)
	childActor, err := p.Child().Create(childID, &childGenPool)
	if err != nil {
		return nil, false
	}

	clog.Debugf("[actor] create child. actorID = %s, targetPath = %v",
		childActor.ActorID(),
		m.TargetPath(),
	)

	return childActor, true
}

func (p *actor) initRedis() {
	config := cprofile.GetConfig("gen-pool")
	if config.LastError() != nil {
		clog.Fatal("gen-pool property not exists.")
		return
	}

	redisID := config.GetString("redis_id")
	if redisID == "" {
		clog.Fatal("gen-pool redis_id property not exists.")
		return
	}

	redisConfigList := cprofile.GetConfig("redis")
	if redisConfigList.LastError() != nil {
		clog.Fatal("redis property not exists.")
		return
	}

	redisConfig := redisComponent.GetConfigWithRedisID(redisConfigList, redisID)
	if redisConfig == nil {
		clog.Fatalf("redis config not found. [redisID = %s]", redisID)
		return
	}

	_, options := redisComponent.NewClientOption(redisConfig)

	p.redisClient = redis.NewClient(options)
}

func (p *actor) buildKey(genPoolID int32, itemID int32) string {
	return fmt.Sprintf("%s%d:%d", p.redisKeyFormat, genPoolID, itemID)
}

func (p *actor) saveGenPoolItem(genPoolItem *GenPoolItem) {
	key := p.buildKey(genPoolItem.GenPoolID, genPoolItem.ItemID)

	fields := map[string]any{}
	fields[CountKey] = genPoolItem.Count
	fields[PeriodEndTimeKey] = genPoolItem.PeriodEndTime

	err := p.redisClient.HSet(p.ctx, key, fields).Err()
	if err != nil {
		clog.Warnf("[saveGenPoolItem] Hset error. [item = %v , err = %v]", genPoolItem, err)
	}
}

// 从redis加载产出池数据到缓存
func (p *actor) loadRedisGenPoolItems() {
	pipeline := p.redisClient.Pipeline()
	defer pipeline.Close()

	var cmds []*redis.SliceCmd
	for _, genPoolRow := range data.GenPool.List() {
		key := p.buildKey(genPoolRow.ID, genPoolRow.ItemID)
		cmds = append(cmds, pipeline.HMGet(p.ctx, key, p.redisFields...))
	}

	if _, err := pipeline.Exec(p.ctx); err != nil {
		clog.Errorf("[LoadRedisGenPoolItems] error: %v", err)
		return
	}

	for i, genPoolRow := range data.GenPool.List() {
		result, err := cmds[i].Result()
		if err != nil {
			clog.Errorf("[LoadRedisGenPoolItems] error: %v", err)
			continue
		}

		genPoolItem := result2GenPoolItem(genPoolRow.ID, genPoolRow.ItemID, result)
		if genPoolItem.Count > 0 || genPoolItem.PeriodEndTime > 0 {
			SetGenPoolItemCache(genPoolItem)
		}
	}

	clog.Debugf("load redis genPool items. count = %d", len(cmds))
}

func result2GenPoolItem(genPoolID, itemID int32, result []any) *GenPoolItem {
	item := NewGenPoolItem(genPoolID, itemID)
	item.Count = cstring.ToInt64D(cstring.ToString(result[0]), 0)
	item.PeriodEndTime = cstring.ToInt64D(cstring.ToString(result[1]), 0)
	return item
}