Add more template tag plugins (#3)

plugins/template-function-hash/src/index.ts

@@ -0,0 +1,24 @@
+import { CallTemplateFunctionArgs, Context, PluginDefinition } from '@yaakapp/api';
+import { createHash } from 'node:crypto';
+
+const algorithms = ['md5', 'sha1', 'sha256', 'sha512'];
+
+export const plugin: PluginDefinition = {
+  templateFunctions: algorithms.map(algorithm => ({
+    name: `hash.${algorithm}`,
+    args: [
+      {
+        name: 'input',
+        label: 'Input',
+        placeholder: 'input text',
+        type: 'text',
+      },
+    ],
+    async onRender(_ctx: Context, args: CallTemplateFunctionArgs): Promise<string | null> {
+      if (!args.values.input) return '';
+      return createHash(algorithm)
+        .update(args.values.input, 'utf-8')
+        .digest('hex');
+    },
+  })),
+};