import { IPodcasts } from './podcasts.types';
import { directus } from '@/plugins/axios/';
import { IParamsDirectus } from '../baseTypes';
import { POST_STATUS } from '@/utils/constants';

const postPreviewFields =
  'title,description,imageFile,category.*,published_at,slug,imagePreview,image,readTime';

async function getPost({
  slug,
  categorySlug,
}: IPodcasts.GetPostsParams): Promise<IPodcasts.Post> {
  const params: IParamsDirectus = {
    fields: '*.*.*.*',
    filter: {
      status: POST_STATUS.published,
    },
  };

  if (slug)
    params.filter = {
      ...params.filter,
      slug,
    };
  if (categorySlug)
    params.filter = {
      ...params.filter,
      ...{
        category: {
          slug: categorySlug,
        },
      },
    };

  const { data: posts } = await directus.get<IPodcasts.Post[]>('podcasts', {
    params,
  });

  const [post] = posts.data;

  return post;
}

async function getPostsPreview({
  start,
  categorySlug,
  limit,
}: IPodcasts.GetPostsParams): Promise<IPodcasts.PostPreview[]> {
  const params: IParamsDirectus = {
    sort: '-date',
    fields: postPreviewFields,
    filter: {
      status: POST_STATUS.published,
    },
  };

  if (start) params.offset = start;
  if (limit) params.limit = limit;
  if (categorySlug)
    params.filter = {
      ...params.filter,
      ...{
        category: {
          slug: categorySlug,
        },
      },
    };

  const { data: posts } = await directus.get<IPodcasts.PostPreview[]>(
    'podcasts',
    {
      params,
    },
  );

  return posts.data;
}

async function getCategories(): Promise<IPodcasts.Category[]> {
  const params: IParamsDirectus = {
    fields: '*.*',
  };

  const { data: categories } = await directus.get<IPodcasts.Category[]>(
    'podcast-categories',
    { params },
  );

  return categories.data;
}

async function getPostsCount(categorySlug?: string): Promise<number> {
  const params: IParamsDirectus = {
    meta: '*',
    limit: 0,
    filter: {
      status: POST_STATUS.published,
    },
  };

  if (categorySlug)
    params.filter = {
      ...params.filter,
      ...{
        category: {
          slug: categorySlug,
        },
      },
    };

  const { data: postsCount } = await directus.get<number>('podcasts', {
    params,
  });

  return Number(postsCount?.meta?.filter_count);
}

export const PodcastsGateway = {
  getPost,
  getPostsPreview,
  getPostsCount,
  getCategories,
};