feat: created basic blog layout

posts/posts.11tydata.js

@@ -0,0 +1,122 @@
+const path = require("path");
+const fs = require("fs");
+const { execSync } = require("child_process");
+
+const getGitCreatedTime = (filePath) => {
+  try {
+    const result = execSync(
+      `git log --diff-filter=A --follow --format=%aI -- "${filePath}" | tail -1`,
+      { encoding: "utf-8", stdio: ["pipe", "pipe", "pipe"] }
+    ).trim();
+    if (result) {
+      return new Date(result);
+    }
+  } catch (e) {
+    // Git command failed, return null
+  }
+  return null;
+};
+
+const getGitModifiedTime = (filePath) => {
+  try {
+    const result = execSync(
+      `git log -1 --format=%aI -- "${filePath}"`,
+      { encoding: "utf-8", stdio: ["pipe", "pipe", "pipe"] }
+    ).trim();
+    if (result) {
+      return new Date(result);
+    }
+  } catch (e) {
+    // Git command failed, return null
+  }
+  return null;
+};
+
+const getTitleFromFilename = (filePath) => {
+  const basename = path.basename(filePath, '.md');
+  return basename
+    .split('-')
+    .map(word => word.charAt(0).toUpperCase() + word.slice(1))
+    .join(' ');
+}
+
+const getFileCreatedTime = (filePath) => {
+  try {
+    const stats = fs.statSync(filePath);
+    return stats.birthtime || stats.mtime;
+  } catch (e) {
+    return null;
+  }
+}
+
+const getFileModifiedTime = (filePath) => {
+  try {
+    const stats = fs.statSync(filePath);
+    return stats.mtime;
+  } catch (e) {
+    return null;
+  }
+}
+
+const parseDate = (value) => {
+  if (!value) return null;
+  if (value instanceof Date) return value;
+  const parsed = new Date(value);
+  return isNaN(parsed.getTime()) ? null : parsed;
+}
+
+const getPostCreatedAt = (data) => {
+  const frontmatterDate = parseDate(data.createdAt);
+  if (frontmatterDate) {
+    return frontmatterDate;
+  }
+  const gitDate = getGitCreatedTime(data.page.inputPath);
+  if (gitDate) {
+    return gitDate;
+  }
+  const fileDate = getFileCreatedTime(data.page.inputPath);
+  if (fileDate) {
+    return fileDate;
+  }
+
+  return data.page.date;
+}
+
+module.exports = {
+  layout: "post.njk",
+  tags: ["posts"],
+  unreleased: false,
+  eleventyComputed: {
+    title: (data) => {
+      if (data.title && data.title !== data.page.fileSlug) {
+        return data.title;
+      }
+      return getTitleFromFilename(data.page.inputPath);
+    },
+    createdAt: getPostCreatedAt,
+    updatedAt: (data) => {
+      const modifiedDate = parseDate(data.updatedAt) ?? 
+        getGitModifiedTime(data.page.inputPath) ?? 
+        getFileModifiedTime(data.page.inputPath);
+      const createdDate = getPostCreatedAt(data);
+
+      if (modifiedDate) {
+        // Only return updatedAt if it's AFTER created date (by more than a day)
+        const dayInMs = 24 * 60 * 60 * 1000;
+        if (modifiedDate > createdDate && (modifiedDate - createdDate) > dayInMs) {
+          return modifiedDate;
+        }
+      }
+      return createdDate;
+    },
+    permalink: (data) => {
+      const title = data.title || getTitleFromFilename(data.page.inputPath);
+      const slug = title.toLowerCase().replace(/\s+/g, '-').replace(/[^\w-]/g, '');
+
+      const createdDate = getPostCreatedAt(data);
+      
+      const isoDate = createdDate.toISOString().split('T')[0];
+      return `/post/${slug}/${isoDate}/`;
+    }
+  }
+};