feat: add Cloud Functions scaffold with tested email builders

functions/src/email.test.ts

@@ -0,0 +1,53 @@
+import { describe, it, expect } from 'vitest'
+import { buildBookingNotificationEmail, buildInquiryNotificationEmail } from './email.js'
+
+describe('buildBookingNotificationEmail', () => {
+  it('includes the service, date, time, and contact details', () => {
+    const { subject, html } = buildBookingNotificationEmail({
+      serviceName: 'Knotless Braids',
+      date: '2026-09-01',
+      time: '10:00 AM',
+      contact: { name: 'Jane Doe', phone: '555-0100', email: 'jane@example.com', notes: 'First time client' },
+    })
+    expect(subject).toBe('New booking: Knotless Braids on 2026-09-01')
+    expect(html).toContain('Jane Doe')
+    expect(html).toContain('Knotless Braids')
+    expect(html).toContain('2026-09-01')
+    expect(html).toContain('10:00 AM')
+    expect(html).toContain('555-0100')
+    expect(html).toContain('jane@example.com')
+    expect(html).toContain('First time client')
+  })
+
+  it('omits the notes paragraph when notes are empty', () => {
+    const { html } = buildBookingNotificationEmail({
+      serviceName: 'Cornrows',
+      date: '2026-09-02',
+      time: '1:00 PM',
+      contact: { name: 'Amy', phone: '555-0101', email: 'amy@example.com', notes: '' },
+    })
+    expect(html).not.toContain('Notes:')
+  })
+})
+
+describe('buildInquiryNotificationEmail', () => {
+  it('includes the product and contact details', () => {
+    const { subject, html } = buildInquiryNotificationEmail({
+      productName: 'Silk Edge Control',
+      contact: { name: 'Nadia', email: 'nadia@example.com', notes: 'Is this in stock?' },
+    })
+    expect(subject).toBe('New inquiry: Silk Edge Control')
+    expect(html).toContain('Nadia')
+    expect(html).toContain('nadia@example.com')
+    expect(html).toContain('Silk Edge Control')
+    expect(html).toContain('Is this in stock?')
+  })
+
+  it('omits the notes paragraph when notes are empty', () => {
+    const { html } = buildInquiryNotificationEmail({
+      productName: 'Braid Oil',
+      contact: { name: 'Kim', email: 'kim@example.com', notes: '' },
+    })
+    expect(html).not.toContain('Notes:')
+  })
+})

functions/src/email.ts

@@ -0,0 +1,28 @@
+export interface BookingEmailInput {
+  serviceName: string
+  date: string
+  time: string
+  contact: { name: string; phone: string; email: string; notes: string }
+}
+
+export function buildBookingNotificationEmail(input: BookingEmailInput): { subject: string; html: string } {
+  const notesLine = input.contact.notes ? `<p>Notes: ${input.contact.notes}</p>` : ''
+  return {
+    subject: `New booking: ${input.serviceName} on ${input.date}`,
+    html: `<p><strong>${input.contact.name}</strong> booked <strong>${input.serviceName}</strong> on ${input.date} at ${input.time}.</p>` +
+      `<p>Phone: ${input.contact.phone}<br/>Email: ${input.contact.email}</p>${notesLine}`,
+  }
+}
+
+export interface InquiryEmailInput {
+  productName: string
+  contact: { name: string; email: string; notes: string }
+}
+
+export function buildInquiryNotificationEmail(input: InquiryEmailInput): { subject: string; html: string } {
+  const notesLine = input.contact.notes ? `<p>Notes: ${input.contact.notes}</p>` : ''
+  return {
+    subject: `New inquiry: ${input.productName}`,
+    html: `<p><strong>${input.contact.name}</strong> (${input.contact.email}) asked about <strong>${input.productName}</strong>.</p>${notesLine}`,
+  }
+}