Files
recap/server/email-template.js
Keysat b4fa5d7be8 Add opt-in Daily Digest (daily email of last 24h of library recaps)
Multi-mode, off by default. Each new recap is synthesized into a 1-2
paragraph overview via the relay (operator-absorbed) and cached onto the
session JSON; a daily 08:00 scan emails opted-in users their fresh
recaps, deduped by a per-user watermark that never skips a failed or
over-cap recap. One-click tokenized unsubscribe; settings-modal toggle;
admin test trigger. Bumps to 0.2.158.
2026-06-15 19:50:48 -05:00

286 lines
11 KiB
JavaScript

// Magic-link email body builder. Returns { subject, text, html } for
// nodemailer. Keeps the HTML and text in sync — both carry the same
// verifyUrl and the same expiry copy.
//
// Style is deliberately minimal: one paragraph, one button, no images,
// no fancy CSS. Spam filters like simple emails; users skim them and
// click the link. Anything fancier risks the email landing in spam,
// which is fatal to a magic-link auth flow.
// renderMagicLinkEmail({ verifyUrl, brandName, expiresInMinutes })
// → { subject, text, html }
export function renderMagicLinkEmail({
verifyUrl,
brandName = "Recaps",
expiresInMinutes = 15,
}) {
const subject = `Sign in to ${brandName}`;
const text = [
`Sign in to ${brandName} by opening this link:`,
"",
verifyUrl,
"",
`This link expires in ${expiresInMinutes} minutes and can only be used once.`,
"",
`If you didn't request this, you can safely ignore this email — no one else can use this link without access to your inbox.`,
].join("\n");
// Inline-styled HTML. Most email clients strip <style> blocks, so
// everything that needs to look right has to be inline.
const html = `<!doctype html>
<html>
<body style="margin:0;padding:0;background:#fafafa;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" style="background:#fafafa;padding:32px 0;">
<tr>
<td align="center">
<table role="presentation" width="480" cellpadding="0" cellspacing="0" style="background:#ffffff;border-radius:8px;padding:32px;max-width:90%;">
<tr>
<td style="font-size:18px;font-weight:600;color:#111;padding-bottom:16px;">
Sign in to ${escapeHtml(brandName)}
</td>
</tr>
<tr>
<td style="font-size:15px;line-height:1.5;color:#444;padding-bottom:24px;">
Click the button below to sign in. This link expires in ${expiresInMinutes} minutes and can only be used once.
</td>
</tr>
<tr>
<td align="center" style="padding-bottom:24px;">
<a href="${escapeAttr(verifyUrl)}" style="display:inline-block;background:#111;color:#fff;text-decoration:none;font-size:15px;font-weight:500;padding:12px 24px;border-radius:6px;">Sign in</a>
</td>
</tr>
<tr>
<td style="font-size:13px;line-height:1.5;color:#888;padding-bottom:8px;">
Or copy and paste this URL into your browser:
</td>
</tr>
<tr>
<td style="font-size:12px;color:#888;word-break:break-all;padding-bottom:24px;">
${escapeHtml(verifyUrl)}
</td>
</tr>
<tr>
<td style="font-size:12px;line-height:1.5;color:#888;border-top:1px solid #eee;padding-top:16px;">
If you didn't request this, you can safely ignore this email — no one can use this link without access to your inbox.
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>`;
return { subject, text, html };
}
// renderSubscriptionReminderEmail({ brandName, tier, expiresAt, daysLeft,
// kind, manageUrl }) → { subject, text, html }
// kind: 'upcoming_7d' | 'upcoming_1d' | 'lapsed'. Same minimal,
// spam-filter-friendly style as the magic-link email: one message, one
// button. `expiresAt` is an ISO string or Date; `daysLeft` is a number
// (<= 0 means already expired).
export function renderSubscriptionReminderEmail({
brandName = "Recaps",
tier = "pro",
expiresAt,
daysLeft = 0,
kind = "upcoming_7d",
manageUrl,
}) {
const tierLabel = tier === "max" ? "Max" : "Pro";
const lapsed = kind === "lapsed";
let when;
if (lapsed) when = "has expired";
else if (daysLeft <= 1) when = "expires tomorrow";
else when = `expires in ${daysLeft} days`;
let expiryDateStr = "";
try {
const d = expiresAt instanceof Date ? expiresAt : new Date(expiresAt);
if (!Number.isNaN(d.getTime())) {
expiryDateStr = d.toLocaleDateString("en-US", {
year: "numeric",
month: "long",
day: "numeric",
});
}
} catch {}
const subject = lapsed
? `Your ${brandName} ${tierLabel} plan has expired`
: `Your ${brandName} ${tierLabel} plan ${when}`;
const lead = lapsed
? `Your ${brandName} ${tierLabel} plan has expired${expiryDateStr ? ` (${expiryDateStr})` : ""}, so your account is back on the free Core tier. Renew anytime to restore ${tierLabel} — it's a one-time payment, no auto-charges.`
: `Your ${brandName} ${tierLabel} plan ${when}${expiryDateStr ? ` (${expiryDateStr})` : ""}. Renew to keep your ${tierLabel} features — it's a one-time payment for another period, no auto-charges.`;
const cta = lapsed ? `Renew ${tierLabel}` : `Renew now`;
const text = [
lapsed
? `Your ${brandName} ${tierLabel} plan has expired.`
: `Your ${brandName} ${tierLabel} plan ${when}.`,
"",
lead,
"",
`${cta}: ${manageUrl}`,
"",
`You're receiving this because you have a ${brandName} account. Prepaid plans never auto-renew — you're only charged when you choose to.`,
].join("\n");
const html = `<!doctype html>
<html>
<body style="margin:0;padding:0;background:#fafafa;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" style="background:#fafafa;padding:32px 0;">
<tr>
<td align="center">
<table role="presentation" width="480" cellpadding="0" cellspacing="0" style="background:#ffffff;border-radius:8px;padding:32px;max-width:90%;">
<tr>
<td style="font-size:18px;font-weight:600;color:#111;padding-bottom:16px;">
Your ${escapeHtml(brandName)} ${escapeHtml(tierLabel)} plan ${escapeHtml(lapsed ? "has expired" : when)}
</td>
</tr>
<tr>
<td style="font-size:15px;line-height:1.5;color:#444;padding-bottom:24px;">
${escapeHtml(lead)}
</td>
</tr>
<tr>
<td align="center" style="padding-bottom:24px;">
<a href="${escapeAttr(manageUrl)}" style="display:inline-block;background:#111;color:#fff;text-decoration:none;font-size:15px;font-weight:500;padding:12px 24px;border-radius:6px;">${escapeHtml(cta)}</a>
</td>
</tr>
<tr>
<td style="font-size:12px;line-height:1.5;color:#888;border-top:1px solid #eee;padding-top:16px;">
You're receiving this because you have a ${escapeHtml(brandName)} account. Prepaid plans never auto-renew — you're only charged when you choose to.
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>`;
return { subject, text, html };
}
// renderDigestEmail({ brandName, episodes, overflowCount, manageUrl,
// unsubscribeUrl }) → { subject, text, html }
// episodes: [{ title, type, url, overview }] — already capped + synthesized
// by the scan. overflowCount: how many more are in the library beyond the
// shown set (0 = none). Same minimal, spam-filter-friendly style as the
// other emails: no images, inline CSS, one CTA. The unsubscribe link is a
// one-click GET (no login) — required for deliverability + consent.
export function renderDigestEmail({
brandName = "Recaps",
episodes = [],
overflowCount = 0,
manageUrl,
unsubscribeUrl,
}) {
const n = episodes.length;
const subject =
n === 1
? `Your ${brandName} digest: 1 new recap`
: `Your ${brandName} digest: ${n} new recaps`;
const typeLabel = (t) =>
t === "podcast" ? "Podcast" : t === "youtube" ? "Video" : "Recording";
const epText = episodes
.map((ep) =>
[
`${ep.title || "Untitled"} (${typeLabel(ep.type)})`,
ep.overview || "",
ep.url || "",
]
.filter(Boolean)
.join("\n"),
)
.join("\n\n");
const text = [
`Here's what you added to ${brandName} in the last day:`,
"",
epText,
"",
overflowCount > 0
? `…and ${overflowCount} more in your library: ${manageUrl}`
: `Open your library: ${manageUrl}`,
"",
`You're receiving this because you turned on the daily digest. Unsubscribe: ${unsubscribeUrl}`,
].join("\n");
const episodeBlocks = episodes
.map((ep) => {
const title = escapeHtml(ep.title || "Untitled");
const titleHtml = ep.url
? `<a href="${escapeAttr(ep.url)}" style="color:#111;text-decoration:none;">${title}</a>`
: title;
return `
<tr>
<td style="padding-bottom:20px;border-bottom:1px solid #eee;">
<div style="font-size:11px;text-transform:uppercase;letter-spacing:0.5px;color:#999;padding-bottom:4px;">${escapeHtml(typeLabel(ep.type))}</div>
<div style="font-size:16px;font-weight:600;color:#111;padding-bottom:8px;line-height:1.35;">${titleHtml}</div>
<div style="font-size:14px;line-height:1.55;color:#444;">${escapeHtml(ep.overview || "")}</div>
</td>
</tr>
<tr><td style="height:20px;"></td></tr>`;
})
.join("");
const overflowHtml =
overflowCount > 0
? `<tr><td style="font-size:13px;color:#888;padding-bottom:16px;">…and ${overflowCount} more in your library.</td></tr>`
: "";
const html = `<!doctype html>
<html>
<body style="margin:0;padding:0;background:#fafafa;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" style="background:#fafafa;padding:32px 0;">
<tr>
<td align="center">
<table role="presentation" width="520" cellpadding="0" cellspacing="0" style="background:#ffffff;border-radius:8px;padding:32px;max-width:90%;">
<tr>
<td style="font-size:18px;font-weight:600;color:#111;padding-bottom:20px;">
Your ${escapeHtml(brandName)} digest
</td>
</tr>
${episodeBlocks}
${overflowHtml}
<tr>
<td align="center" style="padding:8px 0 24px;">
<a href="${escapeAttr(manageUrl)}" style="display:inline-block;background:#111;color:#fff;text-decoration:none;font-size:15px;font-weight:500;padding:12px 24px;border-radius:6px;">Open your library</a>
</td>
</tr>
<tr>
<td style="font-size:12px;line-height:1.5;color:#888;border-top:1px solid #eee;padding-top:16px;">
You're receiving this because you turned on the daily digest. <a href="${escapeAttr(unsubscribeUrl)}" style="color:#888;">Unsubscribe</a> anytime, or manage it in Settings.
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>`;
return { subject, text, html };
}
function escapeHtml(s) {
return String(s)
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/"/g, "&quot;")
.replace(/'/g, "&#39;");
}
function escapeAttr(s) {
return escapeHtml(s);
}