fb080375a0
New features: - Email service for domain availability alerts - Price tracker for detecting significant price changes (>5%) - Automated email notifications for: - Domain becomes available - TLD price changes - Weekly digest summaries - New scheduler job for price change alerts (04:00 UTC) Updated documentation: - README: email notifications section, new services - DEPLOYMENT: email setup, troubleshooting, scheduler jobs New files: - backend/app/services/email_service.py - backend/app/services/price_tracker.py
304 lines
12 KiB
Python
304 lines
12 KiB
Python
"""Email notification service for domain and price alerts."""
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import logging
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import asyncio
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from email.mime.text import MIMEText
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from email.mime.multipart import MIMEMultipart
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from typing import Optional
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from dataclasses import dataclass
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import aiosmtplib
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from app.config import get_settings
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logger = logging.getLogger(__name__)
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settings = get_settings()
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@dataclass
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class EmailConfig:
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"""Email configuration."""
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smtp_host: str = ""
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smtp_port: int = 587
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smtp_user: str = ""
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smtp_password: str = ""
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from_email: str = "noreply@pounce.dev"
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from_name: str = "Pounce Alerts"
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class EmailService:
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"""
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Async email service for sending notifications.
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Supports:
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- Domain availability alerts
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- Price change notifications
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- Weekly digest emails
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"""
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def __init__(self, config: EmailConfig = None):
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"""Initialize email service."""
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self.config = config or EmailConfig(
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smtp_host=getattr(settings, 'smtp_host', ''),
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smtp_port=getattr(settings, 'smtp_port', 587),
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smtp_user=getattr(settings, 'smtp_user', ''),
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smtp_password=getattr(settings, 'smtp_password', ''),
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)
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self._enabled = bool(self.config.smtp_host and self.config.smtp_user)
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@property
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def is_enabled(self) -> bool:
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"""Check if email service is configured."""
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return self._enabled
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async def send_email(
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self,
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to_email: str,
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subject: str,
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html_body: str,
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text_body: str = None,
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) -> bool:
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"""
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Send an email.
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Args:
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to_email: Recipient email address
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subject: Email subject
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html_body: HTML content
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text_body: Plain text content (optional)
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Returns:
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True if sent successfully, False otherwise
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"""
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if not self.is_enabled:
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logger.warning("Email service not configured, skipping send")
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return False
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try:
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message = MIMEMultipart("alternative")
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message["From"] = f"{self.config.from_name} <{self.config.from_email}>"
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message["To"] = to_email
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message["Subject"] = subject
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# Add text and HTML parts
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if text_body:
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message.attach(MIMEText(text_body, "plain"))
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message.attach(MIMEText(html_body, "html"))
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# Send via SMTP
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await aiosmtplib.send(
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message,
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hostname=self.config.smtp_host,
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port=self.config.smtp_port,
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username=self.config.smtp_user,
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password=self.config.smtp_password,
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use_tls=True,
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)
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logger.info(f"Email sent to {to_email}: {subject}")
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return True
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except Exception as e:
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logger.error(f"Failed to send email to {to_email}: {e}")
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return False
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async def send_domain_available_alert(
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self,
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to_email: str,
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domain: str,
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user_name: str = None,
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) -> bool:
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"""Send alert when a watched domain becomes available."""
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subject = f"🎉 Domain Available: {domain}"
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html_body = f"""
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body {{ font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #0a0a0a; color: #fafafa; padding: 40px; }}
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.container {{ max-width: 600px; margin: 0 auto; background: #111; border-radius: 12px; padding: 32px; }}
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.logo {{ color: #00d4aa; font-size: 24px; font-weight: bold; margin-bottom: 24px; }}
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.title {{ font-size: 28px; margin-bottom: 16px; }}
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.domain {{ color: #00d4aa; font-size: 32px; font-weight: bold; background: #0a0a0a; padding: 16px 24px; border-radius: 8px; display: inline-block; margin: 16px 0; }}
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.cta {{ display: inline-block; background: #00d4aa; color: #0a0a0a; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 600; margin-top: 24px; }}
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.footer {{ margin-top: 32px; padding-top: 24px; border-top: 1px solid #333; color: #888; font-size: 14px; }}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="logo">• pounce</div>
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<h1 class="title">Great news{f', {user_name}' if user_name else ''}!</h1>
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<p>A domain you're watching just became available:</p>
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<div class="domain">{domain}</div>
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<p>This is your chance to register it before someone else does!</p>
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<a href="https://porkbun.com/checkout/search?q={domain}" class="cta">Register Now →</a>
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<div class="footer">
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<p>You're receiving this because you added {domain} to your watchlist on Pounce.</p>
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<p>— The Pounce Team</p>
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</div>
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</div>
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</body>
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</html>
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"""
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text_body = f"""
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Great news{f', {user_name}' if user_name else ''}!
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A domain you're watching just became available: {domain}
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This is your chance to register it before someone else does!
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Register now: https://porkbun.com/checkout/search?q={domain}
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— The Pounce Team
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"""
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return await self.send_email(to_email, subject, html_body, text_body)
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async def send_price_change_alert(
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self,
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to_email: str,
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tld: str,
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old_price: float,
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new_price: float,
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change_percent: float,
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registrar: str = "average",
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) -> bool:
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"""Send alert when TLD price changes significantly."""
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direction = "📈 increased" if new_price > old_price else "📉 decreased"
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color = "#f97316" if new_price > old_price else "#00d4aa"
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subject = f"TLD Price Alert: .{tld} {direction} by {abs(change_percent):.1f}%"
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html_body = f"""
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body {{ font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #0a0a0a; color: #fafafa; padding: 40px; }}
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.container {{ max-width: 600px; margin: 0 auto; background: #111; border-radius: 12px; padding: 32px; }}
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.logo {{ color: #00d4aa; font-size: 24px; font-weight: bold; margin-bottom: 24px; }}
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.title {{ font-size: 24px; margin-bottom: 16px; }}
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.tld {{ color: {color}; font-size: 48px; font-weight: bold; }}
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.price-box {{ background: #0a0a0a; padding: 24px; border-radius: 8px; margin: 24px 0; }}
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.price {{ font-size: 24px; }}
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.old {{ color: #888; text-decoration: line-through; }}
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.new {{ color: {color}; font-weight: bold; }}
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.change {{ color: {color}; font-size: 20px; margin-top: 8px; }}
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.footer {{ margin-top: 32px; padding-top: 24px; border-top: 1px solid #333; color: #888; font-size: 14px; }}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="logo">• pounce</div>
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<h1 class="title">TLD Price Change Alert</h1>
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<div class="tld">.{tld}</div>
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<div class="price-box">
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<div class="price">
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<span class="old">${old_price:.2f}</span> →
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<span class="new">${new_price:.2f}</span>
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</div>
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<div class="change">{change_percent:+.1f}% ({registrar})</div>
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</div>
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<p>{"Now might be a good time to register!" if new_price < old_price else "Prices have gone up - act fast if you need this TLD."}</p>
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<div class="footer">
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<p>You're subscribed to TLD price alerts on Pounce.</p>
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<p>— The Pounce Team</p>
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</div>
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</div>
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</body>
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</html>
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"""
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text_body = f"""
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TLD Price Change Alert
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.{tld} has {direction} by {abs(change_percent):.1f}%
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Old price: ${old_price:.2f}
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New price: ${new_price:.2f}
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Source: {registrar}
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{"Now might be a good time to register!" if new_price < old_price else "Prices have gone up."}
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— The Pounce Team
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"""
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return await self.send_email(to_email, subject, html_body, text_body)
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async def send_weekly_digest(
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self,
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to_email: str,
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user_name: str,
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watched_domains: list[dict],
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price_changes: list[dict],
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) -> bool:
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"""Send weekly summary email."""
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subject = "📊 Your Weekly Pounce Digest"
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# Build domain status HTML
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domains_html = ""
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for d in watched_domains[:10]:
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status_color = "#00d4aa" if d.get("is_available") else "#888"
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status_text = "Available!" if d.get("is_available") else "Taken"
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domains_html += f'<tr><td style="padding: 8px 0;">{d["domain"]}</td><td style="color: {status_color};">{status_text}</td></tr>'
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# Build price changes HTML
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prices_html = ""
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for p in price_changes[:5]:
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change = p.get("change_percent", 0)
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color = "#00d4aa" if change < 0 else "#f97316"
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prices_html += f'<tr><td style="padding: 8px 0;">.{p["tld"]}</td><td style="color: {color};">{change:+.1f}%</td><td>${p.get("new_price", 0):.2f}</td></tr>'
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html_body = f"""
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body {{ font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #0a0a0a; color: #fafafa; padding: 40px; }}
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.container {{ max-width: 600px; margin: 0 auto; background: #111; border-radius: 12px; padding: 32px; }}
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.logo {{ color: #00d4aa; font-size: 24px; font-weight: bold; margin-bottom: 24px; }}
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.section {{ margin: 24px 0; }}
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.section-title {{ font-size: 18px; color: #888; margin-bottom: 12px; }}
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table {{ width: 100%; border-collapse: collapse; }}
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th {{ text-align: left; color: #888; font-weight: normal; padding: 8px 0; border-bottom: 1px solid #333; }}
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.footer {{ margin-top: 32px; padding-top: 24px; border-top: 1px solid #333; color: #888; font-size: 14px; }}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="logo">• pounce</div>
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<h1>Weekly Digest</h1>
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<p>Hi {user_name}, here's your weekly summary:</p>
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<div class="section">
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<div class="section-title">Your Watched Domains</div>
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<table>
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<tr><th>Domain</th><th>Status</th></tr>
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{domains_html if domains_html else '<tr><td colspan="2" style="color: #888;">No domains being watched</td></tr>'}
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</table>
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</div>
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<div class="section">
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<div class="section-title">Notable Price Changes</div>
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<table>
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<tr><th>TLD</th><th>Change</th><th>Price</th></tr>
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{prices_html if prices_html else '<tr><td colspan="3" style="color: #888;">No significant changes this week</td></tr>'}
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</table>
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</div>
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<div class="footer">
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<p>— The Pounce Team</p>
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</div>
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</div>
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</body>
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</html>
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"""
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return await self.send_email(to_email, subject, html_body)
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# Singleton instance
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email_service = EmailService()
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