feat: move categories to tags

config/collections/index.js

@@ -1,65 +1,18 @@
-const path = require("path").posix;
-const { dir } = require("../constants.js");
-const { slugifyString } = require("../utils.js");
+const postsByTag = (collection) => {
+  const posts = collection.getFilteredByTag("post");
 
-const getAllPosts = (collection) => {
-  const posts = collection.getFilteredByGlob(
-    path.join(dir.input, "content/posts/**/*.md"),
-  );
-  return posts.reverse();
-};
+  const postsByTag = {};
 
-const getAllPostCategories = (collection) => {
-  const posts = getAllPosts(collection);
-
-  const allCategories = posts.flatMap((post) => post.data.categories);
-
-  const categoryCounts = allCategories.reduce((acc, category) => {
-    if (acc[category]) {
-      acc[category]++;
-    } else {
-      acc[category] = 1;
+  for (const post of posts) {
+    for (const tag of post.data.tags) {
+      postsByTag[tag] ??= [];
+      postsByTag[tag].push(post);
     }
+  }
 
-    return acc;
-  }, {});
-
-  const categories = Object.entries(categoryCounts)
-    .map(([category, count]) => ({
-      key: slugifyString(category),
-      title: category,
-      href: `/tags/${slugifyString(category)}`,
-      count: count,
-    }))
-    .sort((a, b) => b.count - a.count);
-
-  return categories;
-};
-
-const getPostsByCategory = (collection) => {
-  const posts = getAllPosts(collection);
-  const categories = Object.keys(getAllPostCategories(collection));
-
-  const postsByCategory = categories
-    .map((category) => ({
-      category,
-      posts: posts.filter((post) => post.data.categories.includes(category)),
-    }))
-    .sort((a, b) => b.posts.length - a.posts.length);
-
-  return postsByCategory;
-};
-
-const getAllCatalogue = (collection) => {
-  const items = collection.getFilteredByGlob(
-    path.join(dir.input, "content/catalogue/**/*.md"),
-  );
-  return items.reverse();
+  return postsByTag;
 };
 
 module.exports = {
-  getAllCatalogue,
-  getAllPostCategories,
-  getAllPosts,
-  getPostsByCategory,
+  postsByTag,
 };

config/filters/index.js

@@ -4,6 +4,7 @@ const advancedFormat = require("dayjs/plugin/advancedFormat");
 
 const postcss = require("postcss");
 const cssnano = require("cssnano");
+const { default: slugify } = require("slugify");
 
 const keys = Object.keys;
 const values = Object.values;
@@ -40,6 +41,43 @@ const filterByCategory = (collection, category) => {
   return collection.filter((item) => item.data.categories.includes(category));
 };
 
+const allTags = (collection, ignore = []) => {
+  const tagSet = new Set(collection.flatMap((item) => item.data.tags));
+
+  ignore.forEach((tag) => tagSet.delete(tag));
+
+  return [...tagSet];
+};
+
+const allTagCounts = (collection, ignore = ["post"]) => {
+  if (!collection.length) {
+    throw new Error("Invalid collection, no items");
+  }
+
+  const tagCounts = new Map();
+
+  for (const item of collection) {
+    const tags = item.data.tags;
+
+    tags?.forEach((tag) => tagCounts.set(tag, (tagCounts.get(tag) || 0) + 1));
+  }
+
+  ignore.forEach((tag) => tagCounts.delete(tag));
+
+  const tagArray = Array.from(tagCounts.entries())
+    .map(([tag, count]) => ({
+      tag,
+      count,
+    }))
+    .sort((a, b) => b.count - a.count);
+
+  return tagArray;
+};
+
+const filter = (collection, filters = []) => {
+  return collection.filter((item) => !filters.includes(item));
+};
+
 module.exports = {
   entries,
   filterByCategory,
@@ -48,4 +86,7 @@ module.exports = {
   minifyCss,
   organizeByDate,
   values,
+  allTags,
+  allTagCounts,
+  filter,
 };