96 lines
3.2 KiB
Python
96 lines
3.2 KiB
Python
import logging
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from email.mime.multipart import MIMEMultipart
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from email.mime.text import MIMEText
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import aiosmtplib
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from app.config import settings
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logger = logging.getLogger(__name__)
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async def send_email(to: str, subject: str, html_body: str) -> bool:
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"""Send HTML email via SMTP. Returns True on success."""
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if not settings.smtp_host:
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logger.info(f"SMTP not configured, skipping email to {to}: {subject}")
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return False
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msg = MIMEMultipart("alternative")
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msg["From"] = f"{settings.smtp_from_name} <{settings.smtp_from_email}>"
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msg["To"] = to
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msg["Subject"] = subject
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msg.attach(MIMEText(html_body, "html"))
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try:
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await aiosmtplib.send(
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msg,
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hostname=settings.smtp_host,
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port=settings.smtp_port,
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username=settings.smtp_user,
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password=settings.smtp_password,
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use_tls=True,
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)
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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}: {e}")
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return False
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async def send_registration_notification(
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admin_email: str, student_name: str, class_name: str
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):
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html = f"""
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<h2>New Registration Pending Approval</h2>
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<p><strong>{student_name}</strong> has registered for <strong>{class_name}</strong>.</p>
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<p>Please log in to HKU ICB to review and approve.</p>
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"""
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await send_email(admin_email, "HKU ICB: New Registration", html)
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async def send_approval_notification(student_email: str, approved: bool):
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status_text = "approved" if approved else "rejected"
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html = f"""
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<h2>Registration {status_text.capitalize()}</h2>
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<p>Your registration has been <strong>{status_text}</strong>.</p>
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{"<p>You can now log in to HKU ICB.</p>" if approved else ""}
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"""
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await send_email(
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student_email, f"HKU ICB: Registration {status_text.capitalize()}", html
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)
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async def send_class_notification_email(
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emails: list[str],
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subject: str,
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title: str,
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body: str,
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action_url: str | None = None,
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):
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"""Send a styled notification email to class members."""
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action_html = ""
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if action_url:
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action_html = f"""
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<div style="margin-top: 20px;">
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<a href="{action_url}" style="display:inline-block;padding:10px 24px;background:#111827;color:#fff;border-radius:6px;text-decoration:none;font-size:14px;">
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查看详情
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</a>
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</div>
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"""
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html = f"""
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<div style="max-width:600px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#1f2937;">
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<div style="padding:24px 0;border-bottom:2px solid #111827;">
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<h1 style="margin:0;font-size:20px;color:#111827;">HKU ICB</h1>
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</div>
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<div style="padding:24px 0;">
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<h2 style="margin:0 0 12px;font-size:18px;">{title}</h2>
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<div style="font-size:14px;line-height:1.6;color:#4b5563;">{body}</div>
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{action_html}
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</div>
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<div style="padding:16px 0;border-top:1px solid #e5e7eb;font-size:12px;color:#9ca3af;">
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此邮件由系统自动发送，请勿直接回复。
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</div>
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</div>
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"""
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for email in emails:
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await send_email(email, subject, html)
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