// retoor <retoor@molodetz.nl>
export class TermsGate {
  constructor(dialog) {
    this.dialog = dialog;
    this.pending = null;
  }

  async intercept(response) {
    const payload = await response.json().catch(() => ({}));
    if (payload.error?.code !== "terms_required") {
      return false;
    }
    if (!this.pending) {
      this.pending = this.dialog
        .confirm(`The terms have changed (version ${payload.error.terms_version}). Accept and continue?`)
        .then(async (accepted) => {
          if (!accepted) {
            return false;
          }
          const result = await fetch("/terms/accept", {
            method: "POST",
            credentials: "same-origin",
            headers: { Accept: "application/json", "Content-Type": "application/json" },
            body: "{}",
          });
          return result.ok;
        })
        .finally(() => {
          setTimeout(() => { this.pending = null; }, 0);
        });
    }
    return this.pending;
  }
}