import { auth } from '@/auth';
import { v5 as uuidV5 } from 'uuid';

interface ApiResponse<T> {
  code: number; // code from server 0
  message: string;
  data: T;
}

const clefApiBuilder = <Params extends object | void, Resp>(
  path: string,
  options?: {
    // default to GET
    method: 'GET' | 'POST';
    // default to 'app'
    prefix: 'api' | 'app' | 'api.dev' | 'app.dev';
  },
) => {
  return async (params: Params): Promise<Resp> => {
    const session = await auth();
    const email = session?.user?.email;

    if (!email || !email.endsWith('@landing.ai')) {
      throw new Response('Unauthorized', {
        status: 401,
      });
    }

    const sessionUser = {
      id: uuidV5(email, uuidV5.URL),
      orgId: '-1024',
      email: email,
      username: email.split('@')[0],
      userRole: 'adminPortal',
      bucket: 'fake_bucket',
    };

    const prefix = options?.prefix ?? 'app';
    const baseURL = `https://${prefix}.landing.ai/${path}`;

    const method = options?.method ?? 'GET';
    // Create a URL object with query params
    const url = new URL(baseURL);
    if (method === 'GET') {
      Object.entries(params ?? {}).forEach(([key, value]) =>
        url.searchParams.append(key, value),
      );
    }

    const fetchParams: RequestInit = {
      method: options?.method ?? 'GET',
      headers: {
        sessionuser: JSON.stringify(sessionUser), // faked production user
        // apikey: 'land_sk_DKeoYtaZZrYqJ9TMMiXe4BIQgJcZ0s3XAoB0JT3jv73FFqnr6k', // dev key
        apikey: 'land_sk_Z0AWhSGURwC8UVTjyZDH7VMsYod6jfTK79fC2RTGD85NkV6hwO', // prod key
        'X-ROUTE': 'mingruizhang-landing',
      },
    };

    if (method === 'POST' && params instanceof Object) {
      const formData = new FormData();
      for (const [key, value] of Object.entries(params)) {
        formData.append(key, value);
      }

      fetchParams.body = formData;
    }

    const res = await fetch(url.toString(), fetchParams);

    if (!res.ok) {
      console.error('ERROR: fetch data failure', res.status, res.statusText);
      // This will activate the closest `error.js` Error Boundary
      throw new Error('Failed to fetch data');
    }
    const { data }: ApiResponse<Resp> = await res.json();
    return data;
  };
};

export type ProjectBaseInfo = {
  id: number;
  name: string;
  created_at: Date;
  label_type: string;
  orgName: string;
  orgId: number;
  subscription: string;
};
/**
 * Fetch recent projects from all organizations from past 30 days, excluding
 * 1. test organization such as bdd, cypress
 * 2. internal organization such as landing, landing-ai, orgId=1
 * 3. projects not containing media or only contain sample media
 * @author https://github.com/landing-ai/landing-platform/blob/mingrui-04-08-meaningful-project/packages/server-clef/src/main_app/controllers/admin/get_admin_meaningful_project_controller.ts
 */
export const fetchRecentProjectList = clefApiBuilder<void, ProjectBaseInfo[]>(
  'api/admin/vision-agent/projects/recent',
);

export type MediaDetails = {
  id: number;
  name: string;
  path: string;
  url: string;
  projectId: number;
  thumbnails: string[];
  properties: {
    width: number;
    height: number;
    format: string;
    orientation: number;
  };
};

/**
 * Randomly fetch 10 media from a given project
 * @author https://github.com/landing-ai/landing-platform/blob/mingrui-04-08-meaningful-project/packages/server-clef/src/main_app/controllers/admin/get_admin_meaningful_project_controller.ts
 */
export const fetchProjectMedia = clefApiBuilder<
  { projectId: number },
  MediaDetails[]
>('api/admin/vision-agent/project/media');

export type ClassDetails = {
  id: number;
  name: string;
  descriptionText?: string | null;
  orgId: number;
  projectId: number;
  createdAt: string;
  updatedAt: string | null;
  color?: string | null;
};

/**
 * Fetch all active classes of a given project
 * @author https://github.com/landing-ai/landing-platform/blob/mingrui-04-08-meaningful-project/packages/server-clef/src/main_app/controllers/admin/get_admin_meaningful_project_controller.ts
 */
export const fetchProjectClass = clefApiBuilder<
  { projectId: number },
  ClassDetails[]
>('api/admin/vision-agent/project/class');