import { ch } from "../../ch/ch";
import PeriodData, { PeriodDataUpdate } from "./PeriodData";
export interface data_interface {
   serialize(): any;
   unserialize(data: any): void;
}
/**游戏数据
 * 有额外自定义数据可以继承此类
*/
export default class GameData<T extends string | number | symbol, DT extends string | number | symbol, WT extends string | number | symbol, MT extends string | number | symbol> {
   private _key: string;
   private _uid: string;
   private _gid: string;
   private _save_time: number;
   private _ver: string;
   private _data: PeriodData<T>;
   private _day_data: PeriodData<DT>;
   private _week_data: PeriodData<WT>;
   private _month_data: PeriodData<MT>;
   constructor(gid: string, uid: string, name: string,
      limt?: Map<T, { min?: number | null, max?: number | null }>,
      day_limt?: Map<DT, { min?: number | null, max?: number | null }>,
      week_limt?: Map<WT, { min?: number | null, max?: number | null }>,
      month_limt?: Map<MT, { min?: number | null, max?: number | null }>,
   ) {
      this._key = name;
      this._gid = gid;
      this._uid = uid;
      this._data = new PeriodData<T>(PeriodDataUpdate.none, limt);
      this._day_data = new PeriodData<DT>(PeriodDataUpdate.day, day_limt);
      this._week_data = new PeriodData<WT>(PeriodDataUpdate.week, week_limt);
      this._month_data = new PeriodData<MT>(PeriodDataUpdate.month, month_limt);
   }
   //
   public get data(): PeriodData<T> { return this._data };
   public get day_data(): PeriodData<DT> { return this._day_data };
   public get week_data(): PeriodData<WT> { return this._week_data };
   public get month_data(): PeriodData<MT> { return this._month_data };
   public get uid(): string { return this._uid };
   //
   private _dirty: boolean = false;
   public checkNewDay(): void {
      let now = ch.date.now();
      this._day_data?.check(now);
      this._week_data?.check(now);
      this._month_data?.check(now);
   }
   //
   private compareVersion(version1: string, version2: string): number {
      // 移除前面的 'v' 字符  
      const v1 = version1.replace(/^V/, '');
      const v2 = version2.replace(/^V/, '');
      // 分割版本号  
      const parts1 = v1.split('.').map(Number); // 将版本号分割并转为数字  
      const parts2 = v2.split('.').map(Number);
      // 比较每一部分  
      for (let i = 0; i < Math.max(parts1.length, parts2.length); i++) {
         const num1 = parts1[i] || 0; // 如果没有该部分，默认为 0  
         const num2 = parts2[i] || 0;
         if (num1 < num2) {
            return -1; // version1 < version2  
         }
         if (num1 > num2) {
            return 1; // version1 > version2  
         }
      }
      return 0; // 两个版本号相等  
   }
   //
   private async loadGameDataWithRetry(maxRetries: number = 3, delayMs: number = 1000): Promise<any | null> {
      let attempt = 0;
      while (attempt < maxRetries) {
         const data = await this.load_data();
         if (data != null) {
            return data ?? null;
         } else {
            attempt++;
            await new Promise(resolve => setTimeout(resolve, delayMs));
         }
      }
      return null;
   }
   //
   private async saveGameDataWithRetry(save_data: { [key: string]: any }, maxRetries: number = 3, delayMs: number = 1000): Promise<boolean> {
      let attempt = 0;

      while (attempt < maxRetries) {
         const ret = await this.save_data(save_data);
         if (ret) {
            return true;
         } else {
            attempt++;
            await new Promise(resolve => setTimeout(resolve, delayMs));
         }
      }
      return false;
   }
   /**加载数据*/
   public async load(ver?: string | null): Promise<void> {
      this.on_load(0);
      let load_data = ch.storage.getObject(this._key, this._gid);
      if (load_data) {
         if (ch.sdk.get_inited() && load_data.uid != this._uid) load_data = null;
      }
      //
      if (!load_data) {
         const remote_data = await this.loadGameDataWithRetry();
         load_data = remote_data;
      }
      // } else if (remote_data && this.on_check(load_data, remote_data)) {
      //    load_data = remote_data;
      // }
      //
      if (!load_data) {
         this.on_init();
      } else {
         this.unserialize(load_data);
      }
      this.checkVer(ver);

      this.checkNewDay();
      this.on_load(1);
   }
   /**远程调用保存,如果不是强制远程保存，必并先设置脏数据*/
   public async save(force: boolean = false): Promise<boolean> {
      this.on_save(0);
      if (force) {
         this.setDirty();
      } else if (!this._dirty) {
         this.on_save(1);
         return false;
      }
      let ret = await this.saveGameDataWithRetry(this.serialize());
      this.on_save(1);
      if (ret) this._dirty = false;
      return ret;
   }
   /**设置脏数据后保存到本地*/
   public setDirty() {
      this._dirty = true;
      ch.storage.set(this._key, this.serialize(), this._gid);
   }
   private checkVer(new_v: string | null): void {
      if (!new_v) return;
      if (!this._ver) {
         this.on_ver(true, this._ver, new_v);
      }
      let k = this.compareVersion(this._ver, new_v);
      this.on_ver(k < 0, this._ver, new_v);
      this._ver = new_v;
   }
   /**
   * 序列化（数据库存储）
   */
   private serialize(): { [key: string]: number | string | any } {
      const save_data: { [key: string]: number | string } = {};
      if (this._data) save_data.data = this._data.serialize();
      if (this._day_data) save_data.day_data = this._day_data.serialize();
      if (this._week_data) save_data.week_data = this._week_data.serialize();
      if (this._month_data) save_data.month_data = this._month_data.serialize();
      save_data.uid = this._uid;
      save_data.gid = this._gid;
      this._save_time = ch.date.now();
      save_data.save_time = this._save_time;
      if (this._ver) save_data.ver = this._ver;
      this.on_serialize(save_data);
      return save_data;
   }
   /**
   * 反序列化
   */
   private unserialize(load_data: { [key: string]: number | string | any }): void {
      if (!load_data) return;
      this._data?.unserialize(load_data.data);
      this._day_data?.unserialize(load_data.day_data);
      this._week_data?.unserialize(load_data.week_data);
      this._month_data?.unserialize(load_data.month_data);
      this._uid = load_data.uid ?? this._uid;
      this._gid = load_data.gid ?? this._gid;
      this._save_time = load_data.save_time as number ?? ch.date.now();
      if (load_data.ver) this._ver = load_data.ver as string;
      this.on_unserialize(load_data);
   }
   /**重写此方法初始自定义数据*/
   protected on_init(): void {
   }
   /**重写此方法检测是否使用远程数据*/
   protected on_check(local: any, remote: any): boolean {
      return true;
   }
   /**重写 版本检测数据处理*/
   protected on_ver(is_new: boolean, old_v: string, new_v: string): void {
   }
   /**重写序列化加入自定义的数据*/
   protected on_serialize(data: { [key: string]: number | string | any }): void {

   }
   /**重写反序列化*/
   protected on_unserialize(data: { [key: string]: number | string | any }): void {
   }
   /**保存数据(0开始 1结束)*/
   protected on_save(step: 0 | 1): void {

   }
   /**加载数据(0开始 1结束)*/
   protected on_load(step: 0 | 1): void {

   }
   
   /**重写成其它加载方式*/
   protected async load_data(): Promise<{ [key: string]: any; }> {
      const ret = await ch.sdk.loadGameData(this._key);
      if (ret.code === 0) {
         return ret.data;
      } else {
         ch.log.warn(`尝试加载数据失败，错误代码: ${ret.code}  ${ret.err}`);
      }
      return null;
   }
   /**重写成其它保存方式*/
   protected async save_data(save_data: { [key: string]: any; }): Promise<boolean> {
      const ret = await ch.sdk.saveGameData(this._key, save_data);
      if (ret.code == 0) {
         return true;
      } else {
         ch.log.warn(`尝试保存数据失败，错误代码: ${ret.code}  ${ret.err}`);
         return false;
      }
   }
}