import { directus } from '@/plugins/axios/';

import { IParamsDirectus } from '../baseTypes';

import { IHelpCenter } from '@/database/help-center/helpCenter.types';
import { POST_STATUS } from '@/utils/constants';

const postPreviewFields = 'slug,title,category.*';

async function getPost({
  slug,
  categorySlug,
}: IHelpCenter.GetPostsParams): Promise<IHelpCenter.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<IHelpCenter.Post[]>(
    'help-center-posts',
    {
      params,
    },
  );

  const [post] = posts.data;

  return post;
}

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

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

  const { data: posts } = await directus.get<IHelpCenter.PostPreview[]>(
    'help-center-posts',
    {
      params,
    },
  );

  return posts.data;
}

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

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

  return categories.data;
}

async function getCategoryBySlug(slug: string): Promise<IHelpCenter.Category> {
  const params: IParamsDirectus = {
    fields: '*.*',
    filter: {
      slug,
    },
  };

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

  const [category] = categories.data;

  return category;
}

export const HelpCenterGateway = {
  getCategories,
  getCategoryBySlug,
  getPost,
  getPostsPreview,
};