import { jsonNames } from "./ConfigDef";

export class ConfigMgr {
    private static _inst: ConfigMgr;
    public static get inst(): ConfigMgr {
        if (this._inst == null) {
            this._inst = new ConfigMgr();
        }
        return this._inst;
    }

    config: cc.AssetManager.Cache = new cc.AssetManager.Cache();
    init(): Promise<any> {

        // if(CC_DEBUG){
            let arr = jsonNames.map(v=>{ return 'json/' + v + '.json'});
            let task = [];
            arr.forEach((v,k)=>{
                let p = new Promise((resolve:any)=>{
                    cc.assetManager.loadRemote(v, (err, res: cc.JsonAsset)=>{
                        if(res){
                            this.config.add(jsonNames[k], res.json);
                            cc.assetManager.releaseAsset(res);
                        }
                        resolve();
                    })
                });
                task.push(p);
            })
            return Promise.all(task);
        // }
        // else{
        //     let arr = jsonNames.map(v=>{ return 'json/'+ v});
        //     return new Promise((resolve:any)=>{
        //         cc.resources.load(arr, cc.JsonAsset, (err, res)=>{
        //             if(res){
        //                 res.forEach((v, k)=>{
        //                     this.config.add(jsonNames[k], v.json);
        //                     cc.assetManager.releaseAsset(v);
        //                 });
        //             }
        //             resolve();
        //         })
        //     });
        // }
    }

    getCfgKeys(key){
        let cfg = this.config.get(key);
        return Object.keys(cfg);
    }

    getCfgById(key, id){
        let cfg = this.config.get(key);
        return cfg[id];
    }

    getCfgClassById<T>(key, id, objType):T {
        let cfg = this.config.get(key);
        return new objType(id, cfg[id]);
    }
}