import fs from 'fs';
import path from 'path';
import matter from 'gray-matter';

type Training = {
  metadata: {
    id: string;
    name: string;
    slug: string;
    days: number;
    weight: number;
    draft?: boolean;
    logoURL?: string;
    svgIconURL?: string;
    repositoryURL?: string;
    priceOpen: number;
    priceCorporate: number;
  };

  content: string;
};

export type { Training };

const root = process.cwd();

export async function getTrainingFiles() {
  return fs.readdirSync(path.join(root, 'content', 'training'), 'utf-8');
}

export async function getTrainingBySlug(slug: string, fields: string[] = []) {
  const source = fs.readFileSync(path.join(root, 'content', 'training', `${slug}.md`), 'utf8');

  const { data, content } = matter(source);

  return {
    metadata: data,
    content: content,
  };
}

export async function getAllTrainingsWithMetadata(): Promise<Training[]> {
  const files = fs.readdirSync(path.join(root, 'content', 'training'))

  // @ts-ignore
  return files.reduce((allTrainings, fileName) => {
    const source = fs.readFileSync(path.join(root, 'content', 'training', fileName), 'utf8');
    const { data, content } = matter(source);

    return [
      {
        metadata: data,
        content: content,
      },
      ...allTrainings,
    ]
  }, [])
}