import AppConfig from "@scripts/app/AppConfig";
import { FacebookImpl, IFBLoginRes } from "./FacebookImpl";

export class FBH5Impl extends FacebookImpl {
    private _isLogined = false;

    init() {
        try {
            //@ts-ignore
            window.fbAsyncInit = () => {
                //@ts-ignore
                FB.init({
                    appId: AppConfig.FBAppID,
                    cookie: true,
                    xfbml: true,
                    version: 'v26.0'
                })

                //@ts-ignore
                FB.AppEvents.logPageView();
                console.log("fb sdk init!!!");
                this.onInited();
            };

            const script = document.createElement('script');
            script.id = 'facebook-jssdk';
            script.async = true;
            script.defer = true;
            script.crossOrigin = 'anonymous';
            script.src = 'https://connect.facebook.net/en_US/sdk.js';

            script.onerror = () => {
                console.error('[FaceBook] Facebook JavaScript SDK 下载失败');
            };
            document.head.appendChild(script);
        } catch (e) {
            console.error("[FaceBook]", e);
        }

        this._isLogined = false;
    }

    private async getLoginStatus() {
        return new Promise<boolean>((resolve, reject) => {
            //@ts-ignore
            FB.getLoginStatus(response => {
                console.log('[Facebook] login status:', response);
                this._isLogined = response?.status === 'connected';
                resolve(response?.status === 'connected');
            });
        })
    }

    protected async onLogin() {
        if (this._isLogined) {
            await this.logOut();
        }

        return new Promise<IFBLoginRes>((resolve, reject) => {
            //@ts-ignore
            FB.login(response => {
                console.log('[Facebook] login response: ', response);
                const res: IFBLoginRes = {
                    accessToken: "",
                    isCancel: false
                }

                if (response.authResponse) {

                    res.accessToken = response.authResponse?.accessToken || "";
                }

                this._isLogined = !!res.accessToken;
                if (!res.accessToken) {
                    res.isCancel = true;
                }

                resolve(res);
            })
        });
    }

    async logOut() {
        if (!this._isLogined) return true;

        return new Promise<boolean>((resolve, reject) => {
            //@ts-ignore
            FB.logout(response => {
                this._isLogined = false;
                console.log('[Facebook] logout: ', response);
                resolve(true);
            })
        })
    }
}