# Feature Implementation Summary

## Overview

This document summarizes the implementation of authentication and purchase security features for BUILDMATE.

## ✅ Completed Features

### 1. Forgot Password Functionality

**Files Created:**
- `app/forgot-password/page.tsx` - User interface for requesting password reset
- `app/api/auth/forgot-password/route.ts` - API endpoint for password reset requests

**Features:**
- Email validation
- Integration with Supabase Auth for password reset
- Security: Only sends reset links to verified email addresses
- User-friendly error handling and success messages

**How to Use:**
1. Click "Forgot password?" on the login page
2. Enter your verified email address
3. Receive password reset link via email
4. Click the link to reset your password

---

### 2. Reset Password Functionality

**Files Created:**
- `app/reset-password/page.tsx` - User interface for resetting password
- `app/api/auth/reset-password/route.ts` - API endpoint for password reset

**Features:**
- Token-based password reset
- Password strength validation (minimum 6 characters)
- Password confirmation matching
- Updates both Supabase Auth and custom users table
- Automatic redirect to login after successful reset

**Security:**
- Token verification before allowing password reset
- Password hashing with bcrypt (12 rounds)
- Secure token handling

---

### 3. Build Details & Purchase Flow

**Files Modified:**
- `app/builder/page.tsx` - Added success dialog after saving build

**Files Created:**
- `app/purchase/[id]/page.tsx` - Purchase details page

**Features:**
- Success dialog appears after saving a build
- Options to:
  - View Purchase Details (redirects to purchase page)
  - View Build Details (redirects to mybuilds page)
  - Continue Building (stays on builder page)

**Purchase Details Page Includes:**
- Complete component list with prices
- Retailer information (name, address, phone, email)
- Build summary (name, type, total price)
- Security notice about verified email
- Button to send purchase details via email

---

### 4. Email Service Integration

**Files Created:**
- `app/api/purchase/send-email/route.ts` - API endpoint for sending purchase emails
- `EMAIL_SETUP.md` - Complete setup guide for email service

**Package Added:**
- `resend` - Modern email service for sending transactional emails

**Features:**
- Sends beautifully formatted HTML emails with:
  - Build information
  - Complete component list with prices
  - Retailer contact information
  - Security notices
- Email verification: Only sends to verified email addresses
- Professional email template with branding
- Error handling and fallback messages

**Security:**
- Verifies email matches build owner's email
- Only sends to verified email addresses
- Includes security notices in email
- Prevents unauthorized access to purchase details

---

## Security Features

### Email Verification
- All sensitive information (purchase details, password resets) are only sent to verified email addresses
- System verifies email ownership before sending any sensitive data
- Prevents email spoofing and unauthorized access

### Password Security
- Passwords are hashed using bcrypt with 12 rounds
- Token-based password reset (no plain text passwords in emails)
- Password strength requirements enforced

### Access Control
- Purchase details can only be viewed by the build owner
- Email verification required before sending purchase details
- Secure token handling for password resets

---

## Setup Instructions

### 1. Install Dependencies

```bash
npm install
# or
pnpm install
```

This will install the `resend` package for email functionality.

### 2. Configure Email Service

See `EMAIL_SETUP.md` for detailed instructions on setting up Resend.

**Quick Setup:**
1. Sign up at [resend.com](https://resend.com)
2. Get your API key
3. Add to `.env.local`:
   ```env
   RESEND_API_KEY=re_your_api_key_here
   RESEND_FROM_EMAIL=BUILDMATE <noreply@yourdomain.com>
   ```

### 3. Environment Variables Required

```env
# Supabase (already configured)
NEXT_PUBLIC_SUPABASE_URL=your_supabase_url
NEXT_PUBLIC_SUPABASE_ANON_KEY=your_anon_key
SUPABASE_SERVICE_ROLE_KEY=your_service_role_key

# Resend Email Service (new)
RESEND_API_KEY=re_your_api_key_here
RESEND_FROM_EMAIL=BUILDMATE <noreply@yourdomain.com>
```

---

## User Flow

### Password Reset Flow
1. User clicks "Forgot password?" on login page
2. Enters email address
3. Receives password reset email
4. Clicks reset link
5. Enters new password
6. Password is updated
7. Redirected to login page

### Purchase Details Flow
1. User builds a PC in the builder
2. Clicks "Save Build"
3. Success dialog appears
4. User clicks "View Purchase Details"
5. Purchase page shows all components and retailers
6. User clicks "Send Purchase Details to Email"
7. Email is sent to verified email address
8. User receives formatted email with all purchase information

---

## Testing

### Test Forgot Password
1. Go to `/login`
2. Click "Forgot password?"
3. Enter a valid email
4. Check email for reset link
5. Click link and reset password

### Test Purchase Details
1. Build a PC in `/builder`
2. Save the build
3. Click "View Purchase Details" in success dialog
4. Verify all components are displayed
5. Click "Send Purchase Details to Email"
6. Check email inbox for purchase details

---

## Files Modified/Created

### New Files
- `app/forgot-password/page.tsx`
- `app/reset-password/page.tsx`
- `app/purchase/[id]/page.tsx`
- `app/api/auth/forgot-password/route.ts`
- `app/api/auth/reset-password/route.ts`
- `app/api/purchase/send-email/route.ts`
- `EMAIL_SETUP.md`
- `FEATURE_IMPLEMENTATION_SUMMARY.md`

### Modified Files
- `app/builder/page.tsx` - Added success dialog and navigation
- `package.json` - Added `resend` dependency

---

## Next Steps

1. **Set up Resend account** - Follow `EMAIL_SETUP.md`
2. **Test email sending** - Build a PC and send purchase details
3. **Customize email template** - Modify HTML in `app/api/purchase/send-email/route.ts`
4. **Verify domain** - For production, verify your domain in Resend
5. **Test password reset** - Test the complete flow

---

## Support

For issues or questions:
- Check `EMAIL_SETUP.md` for email configuration
- Review API route logs for errors
- Check Resend dashboard for email delivery status
- Verify environment variables are set correctly

---

## Security Best Practices Implemented

✅ Email verification before sending sensitive data
✅ Token-based password reset (no plain text passwords)
✅ Password hashing with bcrypt
✅ Email ownership verification
✅ Secure API routes with error handling
✅ User authentication checks
✅ Input validation and sanitization

---

**Implementation Date:** $(date)
**Status:** ✅ Complete and Ready for Testing