/** One external entry is shared by login retries; internal restarts never create another entry. */
export default class WucaiEntry {
    static loginEntryId = "";
    static pendingEntryId = "";
    private static hidden = false;

    static captureLaunch(options: any): void {
        const query = options && options.query || {};
        this.hidden = false;
        this.pendingEntryId = "";
        this.loginEntryId = query.from === "wucai"
            ? String(query.wucai_entry_id || this.newEntryId()) : "";
    }

    static onHide(): void { this.hidden = true; }

    static captureShow(options: any): boolean {
        const wasHidden = this.hidden;
        this.hidden = false;
        const query = options && options.query || {};
        const scene = Number(options && options.scene) || 0;
        // Cold launch also emits onShow. A normal resume or our own restart is not a new jump.
        if (!wasHidden || query.from !== "wucai" || query.wucai_entry_id
            || (scene && scene !== 1037 && scene !== 1038)) return false;
        this.pendingEntryId = this.newEntryId();
        return true;
    }

    static restartPath(entryId = ""): string {
        return entryId ? "?from=wucai&wucai_entry_id=" + encodeURIComponent(entryId)
            : "?wucai_resume=1";
    }

    private static newEntryId(): string {
        return Date.now().toString(36) + "-" + Math.random().toString(36).slice(2);
    }
}