import WuhuBase from "../WuhuBase";
import Alert from "./Alert";
import ISidebarData from "../../interface/ISidebarData";
import Log from "../Log";
import CommonUtils from "./CommonUtils";

export default class InfoUtils extends WuhuBase {
    /**
     * 返回玩家信息的对象 { playername: string, userID: number }
     * @return {PlayerInfo} rs
     */
    public getPlayerInfo(): PlayerInfo {
        const node = document.querySelector('script[uid]');
        if (node) {
            return {
                playername: node.getAttribute('name'),
                userID: parseInt(node.getAttribute('uid')),
            }
        } else {
            new Alert('严重错误：芜湖助手无法获取用户数据，已退出');
            throw '芜湖助手无法获取用户数据';
        }
    }

    public async getSessionData(): Promise<ISidebarData> {
        let field: string = 'sidebarData' + this.getPlayerInfo().userID;
        let ret: ISidebarData = {};
        return new Promise(async resolve => {
            let c = 0;
            while (!sessionStorage.getItem(field) && c < 50) {
                c++;
                await this.sleep(10);
            }
            if (sessionStorage.getItem(field)) {
                ret = JSON.parse(sessionStorage.getItem(field));
            } else {
                Log.info('无法从sessionStorage获取数据')
                ret = await (await CommonUtils.ajaxFetch({
                    url: window.addRFC('/sidebarAjaxAction.php?q=getSidebarData'),
                    method: 'POST',
                })).json();
                sessionStorage.setItem(field, JSON.stringify(ret));
            }
            ret.headerData = JSON.parse(sessionStorage.getItem('headerData'));
            resolve(ret);
        });
    }

    public async getSidebarData() {
        return (await this.getSessionData()).areas;
    }

    public async getUserState() {
        return (await this.getSessionData()).headerData.user.state;
    }

    /**
     * 等待毫秒数
     * @param {Number} ms 毫秒
     * @returns {Promise<void>}
     */
    public sleep(ms) {
        let time = Math.max(ms, 10);
        return new Promise(resolve => setTimeout(() => resolve(null), time));
    }
}