1 files changed, 85 insertions, 0 deletions
diff --git a/src/utils/helpers/projects.ts b/src/utils/helpers/projects.ts
new file mode 100644
index 0000000..02e0e02
--- /dev/null
+++ b/src/utils/helpers/projects.ts
@@ -0,0 +1,85 @@
+import { ProjectCard } from '@ts/types/app';
+import { MDXProjectMeta } from '@ts/types/mdx';
+import { readdirSync } from 'fs';
+import path from 'path';
+
+/**
+ * Retrieve all the projects filename.
+ *
+ * @returns {string[]} An array of filenames.
+ */
+export const getProjectFilenames = (): string[] => {
+  const projectsDirectory = path.join(process.cwd(), 'src/content/projects');
+  const filenames = readdirSync(projectsDirectory);
+
+  return filenames.map((filename) => filename.replace(/\.mdx$/, ''));
+};
+
+/**
+ * Retrieve project's data by filename.
+ *
+ * @param {string[]} filenames - The filenames without extension.
+ * @returns {Promise<ProjectCard[]>} - The project data.
+ */
+export const getProjectsData = async (
+  filenames: string[]
+): Promise<ProjectCard[]> => {
+  return Promise.all(
+    filenames.map(async (filename) => {
+      try {
+        const {
+          meta,
+        }: {
+          meta: MDXProjectMeta;
+        } = await import(`../../content/projects/${filename}.mdx`);
+
+        const { intro: _intro, title, ...projectMeta } = meta;
+
+        const cover = await import(`../../../public/projects/${filename}.jpg`);
+
+        return {
+          id: filename,
+          meta: {
+            ...projectMeta,
+            // Dynamic import source does not work so I use it only to get sizes
+            cover: {
+              ...cover.default,
+              alt: `${title} image`,
+              src: `/projects/${filename}.jpg`,
+            },
+          },
+          slug: filename,
+          title: title,
+        };
+      } catch (err) {
+        console.error(err);
+        throw err;
+      }
+    })
+  );
+};
+
+/**
+ * Method to sort an array of projects by publication date.
+ *
+ * @param {ProjectCard} a - A single project.
+ * @param {ProjectCard} b - A single project.
+ * @returns The result used by Array.sort() method: 1 || -1 || 0.
+ */
+const sortProjectsByPublicationDate = (a: ProjectCard, b: ProjectCard) => {
+  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<ProjectCard[]>} An array of projects.
+ */
+export const getProjectsCard = async (): Promise<ProjectCard[]> => {
+  const filenames = getProjectFilenames();
+  const projects = await getProjectsData(filenames);
+
+  return [...projects].sort(sortProjectsByPublicationDate);
+};