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OsuWebRequests

simple wrapper for making osu related sequential web requests

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greatest.deepsurf.us/scripts/441005/1241410/OsuWebRequests.js 

class Request {
    constructor(url, params, successFn, errorFn, options = {}) {
        this.url = new URL(url);
        this.url.search = new URLSearchParams(params).toString();
        this.successFn = successFn;
        this.errorFn = errorFn;
        this.options = options;
    }

    send(cb) {
        fetch(this.url, this.options).then(res => {
            cb();
            if (this.successFn) {
                this.successFn(res);
            }
        }).catch(err => {
            cb();
            if (this.errorFn) {
                this.errorFn(err);
            }
        });
    }
}

class Web {
    base = window.location.origin;

    constructor(apiKey = null) {
        this.key = apiKey;
        this.requests = [];
    }

    get(path, params, successFn, errorFn, options = {}) {
        const req = new Request(`${this.base}${path}`, params, successFn, errorFn, options);
        this.queue(req);
    }

    api(path, params, successFn, errorFn) {
        params.k = this.key;
        const req = new Request(`${this.base}/api${path}`, params, successFn, errorFn);
        this.queue(req);
    }

    queue(req) {
        this.requests.push(req);
        if (this.requests.length === 1) {
            this.next();
        }
    }

    next() {
        if (this.requests.length === 0) {
            return;
        }
        const req = this.requests[0];
        req.send(() => {
            this.requests.shift();
            this.next();
        });
    }
}