Add copy script

copy.ts

@@ -0,0 +1,77 @@
+import { existsSync } from 'node:fs';
+import { copyFile, mkdir, readdir } from 'node:fs/promises';
+import { join } from 'node:path';
+import prompts from 'prompts';
+import { replaceInFile } from 'replace-in-file';
+
+// Select year and date
+const { year, day } = await prompts([
+  {
+    type: 'number',
+    name: 'year',
+    message: 'What year?',
+    initial: new Date().getFullYear(),
+    validate: (val) =>
+      val > 2000 && val < 3000 ? true : 'Year needs to be between 2000-3000',
+    format: String
+  },
+  {
+    type: 'number',
+    name: 'day',
+    message: 'What day?',
+    initial: new Date().getDate(),
+    validate: (val) =>
+      val > 0 && val < 32 ? true : 'Day needs to be between 1-31',
+    format: (val) => String(val).padStart(2, '0')
+  }
+]);
+
+const dir = join(year, day);
+
+if (existsSync(dir)) {
+  console.warn('Directory already exists!');
+  process.exit(1);
+}
+
+// Create new day folder
+await mkdir(dir, { recursive: true });
+
+// Parse template folder for files
+const templateDir = 'template';
+const files = await readdir(templateDir);
+
+const yearRegex = /YYYY/g;
+const dayRegex = /DD/g;
+
+// Copy files from template to day folder, replace placeholders in filename
+await Promise.all(
+  files.map((f) =>
+    copyFile(
+      join(templateDir, f),
+      join(dir, f.replaceAll(yearRegex, year).replaceAll(dayRegex, day))
+    )
+  )
+);
+
+// Replace placeholders in code
+const resultYear = await replaceInFile({
+  files: [join(dir, '*')],
+  from: yearRegex,
+  to: year
+});
+const resultDay = await replaceInFile({
+  files: [join(dir, '*')],
+  from: dayRegex,
+  to: day
+});
+
+const results = [...resultYear, ...resultDay];
+
+if (results.filter((r) => r.hasChanged).length <= 0) {
+  console.error(
+    'Something went wrong while replace placeholders! Did they change?'
+  );
+  process.exit(1);
+}
+
+console.log('Directory created! Have fun!');