/** 内容协议 key：使用说明 */
export const PRIVACY_POLICY_KEY_USAGE_TUTORIAL = "web.usageTutorial";
/** 内容协议 key：AI 功能使用须知 */
export const PRIVACY_POLICY_KEY_AI_USE_NOTICE = "web.aiUseNotice";
/** 内容协议 key：用户协议 */
export const PRIVACY_POLICY_KEY_USER_TERMS = "web.userTerms";
/** 内容协议 key：隐私政策 */
export const PRIVACY_POLICY_KEY_PRIVACY_POLICY = "web.privacyPolicy";
/** 内容协议 key：“Popi.art”付费服务协议 */
export const PRIVACY_POLICY_KEY_PAYMENT_TERMS = "web.paymentTerms";
/** 内容协议 key：Popi 存证协议 */
export const PRIVACY_POLICY_KEY_EVIDENCE_PRESERVATION = "web.popiartEvidencePreservationAgreement";
/** 内容协议 key：Popi Future Creator 计划用户服务协议 */
export const PRIVACY_POLICY_KEY_FUTURE_CREATOR = "web.futureCreatorUserServiceAgreement";

export interface GetLatestPrivacyPolicyParams {
  key: string;
}

export async function getLatestPrivacyPolicy({ key }: GetLatestPrivacyPolicyParams): Promise<unknown> {
  const params = new URLSearchParams({ key });
  const response = await fetch(`/api/content/privacy-policy/latest?${params.toString()}`, {
    method: "GET",
  });

  const payload = (await response.json().catch(() => null)) as unknown;
  if (!response.ok) {
    const message =
      typeof payload === "object" &&
      payload !== null &&
      "message" in payload &&
      typeof payload.message === "string"
        ? payload.message
        : "Failed to fetch latest privacy policy.";
    throw new Error(message);
  }

  return payload;
}
interface PrivacyPolicyItem {
  id: number;
  title: string;
  key: string;
  type: number;
  content: string;
  status: number;
}

interface PrivacyPolicyResponse {
  data?: PrivacyPolicyItem;
  message?: string;
  status?: string;
}

/** 按 key 拉取最新协议/说明，type 为 2 时在新标签页打开 content 链接 */
export async function openLatestPrivacyPolicyLink(key: string): Promise<void> {
  const res = (await getLatestPrivacyPolicy({ key })) as PrivacyPolicyResponse;
  if (res.status && res.status !== "0000") {
    throw new Error(res.message || "Failed to fetch latest privacy policy.");
  }
  const item = res.data;
  if (!item?.content || item.type !== 2) {
    throw new Error(res.message || "Latest privacy policy link is unavailable.");
  }
  window.open(item.content, "_blank", "noopener,noreferrer");
}