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import { readdir } from 'fs/promises';
import { join } from 'path';
import type { StaticImageData } from 'next/image';
import type { MDXProjectMeta, Project, ProjectPreview } from '../../../types';
import { ROUTES } from '../../constants';
/**
* Retrieve all the projects filename.
*
* @returns {Promise<string[]>} An array of filenames.
*/
export const getProjectFilenames = async (): Promise<string[]> => {
const projectsDir = join(process.cwd(), 'src/content/projects');
const filenames = await readdir(projectsDir);
return filenames.map((filename) => filename.replace(/\.mdx$/, ''));
};
/**
* Retrieve the data of a project by filename.
*
* @param {string} filename - The project filename.
* @returns {Promise<ProjectPreview>} A ProjectPreview object.
*/
export const getProjectData = async (filename: string): Promise<Project> => {
try {
const {
meta,
}: {
meta: MDXProjectMeta;
} = await import(`../../../content/projects/${filename}.mdx`);
const { intro, title, ...projectMeta } = meta;
const cover: StaticImageData = (
await import(`../../../../public/projects/${filename}.jpg`)
).default;
return {
id: filename,
intro,
meta: {
...projectMeta,
// Dynamic import source does not work so I use it only to get sizes
cover: {
alt: `${title} image`,
height: cover.height,
src: `/projects/${filename}.jpg`,
width: cover.width,
title,
},
},
slug: `${ROUTES.PROJECTS}/${filename}`,
title,
};
} catch (err) {
console.error(err);
throw err;
}
};
/**
* Method to sort an array of projects by publication date.
*
* @param {ProjectPreview} a - A single project.
* @param {ProjectPreview} b - A single project.
* @returns {number} The result used by Array.sort() method: 1 || -1 || 0.
*/
const byPublicationDate = (a: ProjectPreview, b: ProjectPreview) => {
if (a.meta.dates.publication < b.meta.dates.publication) return 1;
if (a.meta.dates.publication > b.meta.dates.publication) return -1;
return 0;
};
/**
* Retrieve all projects in content folder sorted by publication date.
*
* @returns {Promise<ProjectPreview[]>} An array of projects.
*/
export const getAllProjects = async (): Promise<ProjectPreview[]> => {
const filenames = await getProjectFilenames();
const projects = await Promise.all(filenames.map(getProjectData));
return [...projects].sort(byPublicationDate);
};
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