import type { SimpleAlovaOptions } from './types';

import { useAppConfig } from '@vben/hooks';
import { useAccessStore } from '@vben/stores';

import { createServerTokenAuthentication } from 'alova/client';
import JsonBigint from 'json-bigint';

import { createAlovaClient } from './alova';

/** 超出 JS 安全整数范围的 id 等字段在 JSON 解析时保留为字符串，避免精度丢失 */
const parseJsonBody = JsonBigint({ storeAsString: true }).parse;

const { requestBaseURL } = useAppConfig(import.meta.env, import.meta.env.PROD);

const BINARY_DOWNLOAD_CONTENT_TYPES = new Set([
  'application/octet-stream',
  'application/vnd.ms-excel',
  'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
]);

function decodeContentDispositionFileName(value: string): string {
  try {
    return decodeURIComponent(value.trim());
  } catch {
    return value.trim();
  }
}

function parseContentDispositionFileName(
  disposition?: string | null,
  fallbackUrl?: string,
): string {
  if (disposition) {
    const utf8Match = disposition.match(/filename\*=UTF-8''([^;]+)/i);
    if (utf8Match?.[1]) {
      return decodeContentDispositionFileName(utf8Match[1]);
    }

    const fileNameMatch = disposition.match(/filename=["']?([^"';]+)["']?/i);
    if (fileNameMatch?.[1]) {
      return decodeContentDispositionFileName(fileNameMatch[1]);
    }
  }

  const urlFileName = fallbackUrl?.match(/[^/?#]+(?=$|[?#])/i)?.[0];
  return urlFileName ? decodeContentDispositionFileName(urlFileName) : 'download';
}

function isBinaryDownloadContentType(contentType?: string): boolean {
  if (!contentType) return false;
  return (
    BINARY_DOWNLOAD_CONTENT_TYPES.has(contentType) ||
    contentType.startsWith('application/vnd.openxmlformats-officedocument.')
  );
}

export default function createRequestClient(options?: SimpleAlovaOptions) {
  const store = options?.tokenStore ?? useAccessStore();
  const transform = options?.transform ?? ((body) => body);
  const interceptor = options?.interceptor ?? {
    async onSuccess(response, method) {
      if (response.status > 400) {
        const message = response.statusText;
        // eslint-disable-next-line no-throw-literal
        throw { message };
      }

      /* prettier-ignore */
      if (method.meta?.notParseResponse) return response.clone();

      /* prettier-ignore */
      const [contentType] = response.headers.get('content-type')?.split(';') ?? [];
      if (contentType === 'application/json') {
        const text = await response.text();
        const body = transform(text ? parseJsonBody(text) : {}, method);
        if (method.meta?.notParseResponseBody) return body;
        if (body.code === 0) return body.data;
        throw body;
      }

      if (isBinaryDownloadContentType(contentType)) {
        return {
          fileName: parseContentDispositionFileName(
            response.headers.get('content-disposition'),
            method.url,
          ),
          source: await response.blob(),
        };
      }

      return response;
    },
  };

  const instance = createAlovaClient({
    id: options?.id,
    baseURL:
      options?.baseURL ??
      requestBaseURL[options?.id?.toString().toLocaleLowerCase() ?? 'url'] ??
      requestBaseURL.url,
    tokenAuthentication: createServerTokenAuthentication({
      refreshTokenOnSuccess: {
        async isExpired(response) {
          return response.status === 401;
        },
        async handler(response) {
          if (store.refreshToken) {
            console.log(response);
          }
        },
        metaMatches: {
          authRole: 'refreshToken',
          refreshToken: true,
        },
      },
      login: {
        async handler(response, method) {
          const data = await interceptor.onSuccess?.(response.clone(), method);
          store.loginExpired = false;
          store.accessToken = data.accessToken;
          store.refreshToken = data.refreshToken;
        },
        metaMatches: {
          authRole: 'login',
          login: true,
        },
      },
      logout: {
        async handler() {
          store.loginExpired = true;
          store.accessToken = null;
          store.refreshToken = null;
        },
        metaMatches: {
          authRole: 'logout',
          logout: true,
        },
      },
      assignToken(method) {
        method.config.headers.Authorization ??= store.accessToken;
      },
      visitorMeta: {
        authRole: 'none',
        visitor: true,
      },
    }),
    cacheLogger: import.meta.env.DEV,
  });
  for (const [type, _interceptor] of Object.entries(interceptor)) {
    instance.interceptor(<any>type.slice(2).toLowerCase(), _interceptor);
  }

  return instance;
}

export * from './alova';
export * from './composables';
export * from './types';
export * from 'alova/client';