the email template itself has to be able to get modified by admin

src/lib/actions/email.ts

@@ -0,0 +1,54 @@
+
+'use server';
+
+import { z } from 'zod';
+import db from '@/lib/db';
+import { revalidatePath } from 'next/cache';
+
+const emailTemplateSchema = z.object({
+  subject: z.string().min(1, 'Subject is required.'),
+  body: z.string().min(1, 'Body is required.'),
+});
+
+/**
+ * Gets the email template from the database.
+ */
+export async function getEmailTemplate(): Promise<{ subject: string; body: string } | null> {
+  try {
+    const stmt = db.prepare('SELECT subject, body FROM email_templates WHERE id = ?');
+    // We assume there is only one template with id = 1
+    const template = stmt.get(1) as { subject: string; body: string } | undefined;
+    if (!template) {
+      return null;
+    }
+    return template;
+  } catch (error) {
+    console.error('Failed to get email template:', error);
+    return null;
+  }
+}
+
+/**
+ * Updates the email template in the database.
+ */
+export async function updateEmailTemplate(data: { subject: string; body: string }): Promise<{ success: boolean; message: string }> {
+  const validation = emailTemplateSchema.safeParse(data);
+  if (!validation.success) {
+    const errorMessages = validation.error.issues.map(issue => issue.message).join(' ');
+    return { success: false, message: `Invalid data provided: ${errorMessages}` };
+  }
+
+  const { subject, body } = validation.data;
+
+  try {
+    const stmt = db.prepare('UPDATE email_templates SET subject = ?, body = ? WHERE id = ?');
+    // We assume we're updating the template with id = 1
+    stmt.run(subject, body, 1);
+    
+    revalidatePath('/admin/settings/email-templates');
+    return { success: true, message: 'Email template updated successfully!' };
+  } catch (error) {
+    console.error('Failed to update email template:', error);
+    return { success: false, message: 'An unexpected error occurred.' };
+  }
+}