/**
 * 服务配置 - 参考 desktop digital 项目
 * PocketBase、支付（ZPAY）、MinIO 可通过环境变量覆盖
 */

const isDev = process.env.NODE_ENV === "development";

/** 站点标识，用于 VIP 按站点隔离 */
export const SITE_ID = process.env.NEXT_PUBLIC_SITE_ID || "vip";

export interface PocketBaseConfig {
  url: string;
}

export interface PaymentConfig {
  apiUrl: string;
  provider: "zpay" | "xorpay";
  zpaySubmitUrl: string;
  /** 默认金额（分），88元=8800分 */
  defaultAmount?: number;
  /** nomadvip 专用接口路径 */
  nomadvipPayPath: string;
}

export interface MinioConfig {
  endPoint: string;
  port: number;
  useSSL: boolean;
  bucket: string;
  publicUrl: string;
}

/**
 * 服务端 PocketBase 基址：
 * - 生产（next start）：只认 `POCKETBASE_URL`，否则本机 8090。忽略 `POCKETBASE_INTERNAL_URL`，避免误配公网域名把同机 API 拖慢。
 * - 本地 next dev：可用 `POCKETBASE_INTERNAL_URL` 指向远程 PB（本机未起 8090）。
 */
export function getPocketBaseConfig(): PocketBaseConfig {
  const serverSide = typeof window === "undefined";

  if (serverSide) {
    if (isDev) {
      const devServerUrl =
        process.env.POCKETBASE_INTERNAL_URL?.trim() ||
        process.env.POCKETBASE_URL?.trim();
      if (devServerUrl) {
        return { url: devServerUrl.replace(/\/$/, "") };
      }
      return { url: "http://127.0.0.1:8090" };
    }
    return {
      url: (process.env.POCKETBASE_URL || "http://127.0.0.1:8090").replace(
        /\/$/,
        ""
      ),
    };
  }

  return {
    url: (
      process.env.NEXT_PUBLIC_POCKETBASE_URL ||
      process.env.POCKETBASE_URL ||
      "https://pocketbase.hackrobot.cn"
    ).replace(/\/$/, ""),
  };
}

const PAYJSAPI_PORT = process.env.PAYJSAPI_PORT || "8007";

/**
 * 根据请求 Host 推断 payjsapi 地址。同机部署时优先用 PAYMENT_API_INTERNAL_URL。
 * 访问 192.168.41.222:3000 时自动用 192.168.41.222:8007
 */
export function getApiUrlFromRequest(hostHeader: string | null): string {
  const internal = process.env.PAYMENT_API_INTERNAL_URL?.trim();
  if (internal) return internal.replace(/\/$/, "");
  if (!hostHeader) return `http://127.0.0.1:${PAYJSAPI_PORT}`;
  const hostname = hostHeader.split(":")[0];
  if (!isDev && /^(vip\.hackrobot\.cn|www\.vip\.hackrobot\.cn)$/i.test(hostname)) {
    return `http://127.0.0.1:${PAYJSAPI_PORT}`;
  }
  return isDev ? `http://${hostname}:${PAYJSAPI_PORT}` : "https://api.hackrobot.cn";
}

/**
 * 支付 API 地址。同机部署时优先用 PAYMENT_API_INTERNAL_URL 避免 hairpin NAT 问题。
 * 生产环境若 PAYMENT_API_URL 指向 localhost 且未设 INTERNAL，则用 api 域名。
 */
function resolvePaymentApiUrl(): string {
  const internal = process.env.PAYMENT_API_INTERNAL_URL?.trim();
  if (internal) return internal.replace(/\/$/, "");
  const url =
    process.env.PAYMENT_API_URL ||
    process.env.NEXT_PUBLIC_API_URL ||
    `http://127.0.0.1:${PAYJSAPI_PORT}`;
  if (!isDev && /^(https?:\/\/)?(127\.0\.0\.1|localhost)(:\d+)?(\/|$)/i.test(url)) {
    return `http://127.0.0.1:${PAYJSAPI_PORT}`;
  }
  return url;
}

export function getPaymentConfig(): PaymentConfig {
  const apiUrl = resolvePaymentApiUrl();
  return {
    apiUrl,
    provider: (process.env.PAYMENT_PROVIDER as "zpay" | "xorpay") || "zpay",
    zpaySubmitUrl:
      process.env.ZPAY_SUBMIT_URL || "https://zpayz.cn/submit.php",
    /** 支付价格 188 元=18800 分 */
    defaultAmount: Number(process.env.PAYMENT_DEFAULT_AMOUNT) || 28800,
    nomadvipPayPath: "/nomadvip/payh5",
  };
}

export function getMinioConfig(): MinioConfig {
  const endPoint = process.env.MINIO_ENDPOINT || "minioweb.hackrobot.cn";
  const port = parseInt(process.env.MINIO_PORT || "9035", 10);
  const useSSL = process.env.MINIO_USE_SSL === "true";
  const bucket = process.env.MINIO_BUCKET || "hackrobot";
  const publicUrl =
    process.env.MINIO_PUBLIC_URL || `https://${endPoint}/${bucket}`;

  return {
    endPoint,
    port,
    useSSL,
    bucket,
    publicUrl: publicUrl.replace(/\/$/, ""),
  };
}