import type {
  PaymentApiKey,
  PaymentApp,
  PaymentAppCreateResponse,
  PaymentAppListResponse,
} from '../../../packages/shared/src/contracts/payment';
import type {
  ConfirmWechatProfileRechargeOrderResponse,
  CreateProfileRechargeOrderResponse,
  ExternalApiKeyCreateResponse,
  ExternalApiKeyListResponse,
  ExternalApiKeyMutationResponse,
  ProfileDashboardSummary,
  ProfileMembershipPlan,
  ProfileMembershipUpgradeQuote,
  ProfileRechargeCenterResponse,
  ProfileRechargeOrder,
  ProfileReferralInviteCenterResponse,
  ProfileWalletLedgerResponse,
  RedeemProfileReferralInviteCodeResponse,
  RedeemProfileRewardCodeResponse,
} from '../../../packages/shared/src/contracts/runtime';
import {
  appendApiErrorRequestId,
  parseApiErrorMessage,
} from '../../../packages/shared/src/http';
import {
  type ApiAuthImpact,
  type ApiRetryOptions,
  fetchWithApiAuth,
  requestJson,
} from '../apiClient';
import { readSseJsonStream } from '../sseStream';

const PLATFORM_PROFILE_API_BASE = '/api/profile';
const PLATFORM_PROFILE_READ_RETRY: ApiRetryOptions = {
  maxRetries: 1,
  baseDelayMs: 180,
  maxDelayMs: 480,
};
const PLATFORM_PROFILE_WRITE_RETRY: ApiRetryOptions = {
  maxRetries: 1,
  baseDelayMs: 240,
  maxDelayMs: 640,
  retryUnsafeMethods: true,
};

export type PlatformProfileRequestOptions = {
  signal?: AbortSignal;
  retry?: ApiRetryOptions;
  skipAuth?: boolean;
  skipRefresh?: boolean;
  authImpact?: ApiAuthImpact;
  notifyAuthStateChange?: boolean;
  clearAuthOnUnauthorized?: boolean;
};

function requestPlatformProfileJson<T>(
  path: string,
  init: RequestInit,
  fallbackMessage: string,
  options: PlatformProfileRequestOptions = {},
) {
  const method = (init.method ?? 'GET').toUpperCase();
  const retry =
    options.retry ??
    (method === 'GET'
      ? PLATFORM_PROFILE_READ_RETRY
      : PLATFORM_PROFILE_WRITE_RETRY);
  const normalizedPath = path.startsWith('/') ? path : `/${path}`;

  return requestJson<T>(
    `${PLATFORM_PROFILE_API_BASE}${normalizedPath}`,
    {
      ...init,
      signal: options.signal,
    },
    fallbackMessage,
    {
      retry,
      skipAuth: options.skipAuth,
      skipRefresh: options.skipRefresh,
      authImpact: options.authImpact,
      notifyAuthStateChange: options.notifyAuthStateChange,
      clearAuthOnUnauthorized: options.clearAuthOnUnauthorized,
    },
  );
}

export function getPlatformProfileDashboard(
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ProfileDashboardSummary>(
    '/dashboard',
    { method: 'GET' },
    '读取个人看板失败',
    options,
  );
}

export function getPlatformProfileWalletLedger(
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ProfileWalletLedgerResponse>(
    '/wallet-ledger',
    { method: 'GET' },
    '读取资产流水失败',
    options,
  );
}

export function listPlatformProfileExternalApiKeys(
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ExternalApiKeyListResponse>(
    '/api-keys',
    { method: 'GET' },
    '读取 API Key 失败',
    options,
  );
}

export function createPlatformProfileExternalApiKey(
  name: string,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ExternalApiKeyCreateResponse>(
    '/api-keys',
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ name }),
    },
    '创建 API Key 失败',
    options,
  );
}

export function revokePlatformProfileExternalApiKey(
  keyId: string,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ExternalApiKeyMutationResponse>(
    `/api-keys/${encodeURIComponent(keyId)}`,
    { method: 'DELETE' },
    '撤销 API Key 失败',
    options,
  );
}

export function listPlatformProfilePaymentApps(
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<PaymentAppListResponse>(
    '/payment/apps',
    { method: 'GET' },
    '读取支付服务失败',
    options,
  );
}

export function createPlatformProfilePaymentApp(
  name: string,
  callbackUrl: string | null,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<PaymentAppCreateResponse>(
    '/payment/apps',
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ name, callbackUrl }),
    },
    '创建支付应用失败',
    options,
  );
}

export function updatePlatformProfilePaymentApp(
  appId: string,
  enabled: boolean,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<PaymentApp>(
    `/payment/apps/${encodeURIComponent(appId)}`,
    {
      method: 'PATCH',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ enabled }),
    },
    '更新支付应用失败',
    options,
  );
}

export function revokePlatformProfilePaymentApiKey(
  keyId: string,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<PaymentApiKey>(
    `/payment/keys/${encodeURIComponent(keyId)}`,
    { method: 'DELETE' },
    '撤销支付 API Key 失败',
    options,
  );
}

export function getPlatformProfileRechargeCenter(
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ProfileRechargeCenterResponse>(
    '/recharge-center',
    { method: 'GET' },
    '读取泥点购买信息失败',
    options,
  );
}

export function createPlatformProfileRechargeOrder(
  productId: string,
  paymentChannel: string,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<CreateProfileRechargeOrderResponse>(
    '/recharge/orders',
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ productId, paymentChannel }),
    },
    '充值失败',
    options,
  );
}

export function getPlatformProfileMembershipUpgradeQuote(
  targetPlan: ProfileMembershipPlan,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ProfileMembershipUpgradeQuote>(
    '/membership/upgrade-quote',
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ targetPlan }),
    },
    '读取升级报价失败',
    options,
  );
}

export function confirmWechatPlatformProfileRechargeOrder(
  orderId: string,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ConfirmWechatProfileRechargeOrderResponse>(
    `/recharge/orders/${encodeURIComponent(orderId)}/wechat/confirm`,
    { method: 'POST' },
    '确认微信支付订单失败',
    options,
  );
}

type PlatformProfileRechargeOrderSseEvent =
  | {
      type: 'order';
      payload: ConfirmWechatProfileRechargeOrderResponse;
    }
  | {
      type: 'done';
      payload: { orderId: string; status: string };
    }
  | {
      type: 'error';
      payload: { message: string };
    };

function normalizePlatformProfileRechargeOrderSseEvent(
  eventName: string,
  parsed: Record<string, unknown>,
): PlatformProfileRechargeOrderSseEvent | null {
  if (eventName === 'order' && parsed.order && parsed.center) {
    return {
      type: 'order',
      payload: parsed as ConfirmWechatProfileRechargeOrderResponse,
    };
  }

  if (eventName === 'done') {
    const orderId =
      typeof parsed.orderId === 'string' ? parsed.orderId.trim() : '';
    const status =
      typeof parsed.status === 'string' ? parsed.status.trim() : '';
    if (orderId && status) {
      return {
        type: 'done',
        payload: { orderId, status },
      };
    }
  }

  if (eventName === 'error') {
    const message =
      typeof parsed.message === 'string' && parsed.message.trim()
        ? parsed.message.trim()
        : '';
    return {
      type: 'error',
      payload: { message },
    };
  }

  return null;
}

function isPlatformProfileRechargeOrderTerminal(
  order: Pick<ProfileRechargeOrder, 'status' | 'expirationCheckedAt'>,
) {
  if (order.status === 'pending') {
    return false;
  }
  if (order.status === 'expired' && !order.expirationCheckedAt) {
    return false;
  }
  return true;
}

export async function watchWechatPlatformProfileRechargeOrder(
  orderId: string,
  options: PlatformProfileRequestOptions = {},
): Promise<ConfirmWechatProfileRechargeOrderResponse> {
  const response = await fetchWithApiAuth(
    `${PLATFORM_PROFILE_API_BASE}/recharge/orders/${encodeURIComponent(orderId)}/wechat/events`,
    {
      method: 'GET',
      headers: { Accept: 'text/event-stream' },
      signal: options.signal,
    },
    {
      skipRefresh: options.skipRefresh,
      skipAuth: options.skipAuth,
      authImpact: options.authImpact,
      notifyAuthStateChange: options.notifyAuthStateChange,
      clearAuthOnUnauthorized: options.clearAuthOnUnauthorized,
    },
  );

  if (!response.ok) {
    const responseText = await response.text();
    throw new Error(
      appendApiErrorRequestId(
        parseApiErrorMessage(responseText, '订阅充值订单状态失败'),
        response.headers.get('x-request-id'),
      ),
    );
  }

  if (!response.body) {
    throw new Error('streaming response body is unavailable');
  }

  let finalResponse: ConfirmWechatProfileRechargeOrderResponse | null = null;
  let lastResponse: ConfirmWechatProfileRechargeOrderResponse | null = null;

  await readSseJsonStream(response, ({ eventName, parsed }) => {
    const normalized = normalizePlatformProfileRechargeOrderSseEvent(
      eventName,
      parsed,
    );
    if (!normalized) {
      return;
    }

    if (normalized.type === 'order') {
      lastResponse = normalized.payload;
      if (isPlatformProfileRechargeOrderTerminal(normalized.payload.order)) {
        finalResponse = normalized.payload;
        return false;
      }
      return;
    }

    if (normalized.type === 'done') {
      if (
        !finalResponse &&
        lastResponse &&
        isPlatformProfileRechargeOrderTerminal(lastResponse.order)
      ) {
        finalResponse = lastResponse;
      }
      return false;
    }

    throw new Error(normalized.payload.message || '订阅充值订单状态失败');
  });

  if (!finalResponse) {
    throw new Error('充值订单状态流返回不完整');
  }

  return finalResponse;
}

export function getPlatformProfileReferralInviteCenter(
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<ProfileReferralInviteCenterResponse>(
    '/referrals/invite-center',
    { method: 'GET' },
    '读取邀请码失败',
    options,
  );
}

export function redeemPlatformProfileReferralInviteCode(
  inviteCode: string,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<RedeemProfileReferralInviteCodeResponse>(
    '/referrals/redeem-code',
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ inviteCode }),
    },
    '填写邀请码失败',
    options,
  );
}

export function redeemPlatformProfileRewardCode(
  code: string,
  options: PlatformProfileRequestOptions = {},
) {
  return requestPlatformProfileJson<RedeemProfileRewardCodeResponse>(
    '/redeem-codes/redeem',
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ code }),
    },
    '兑换失败',
    options,
  );
}