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export type PostEmailProps = { publicationName: string; publicationUrl: string; postTitle: string; postDescription?: string; postUrl: string; authorName?: string; publishedAtLabel?: string; blocks: PubLeafletPagesLinearDocument.Block[]; /** * Used to build absolute URLs for `pub.leaflet.blocks.image` blob refs via * the /api/atproto_images proxy. Preview renders from drafts may encode a * direct URL in the blob ref's $link instead — we pass those through. */ did: string; /** * If omitted the template renders a "(preview)" footer in place of the * real unsubscribe link — used by the Phase 4 preview-send path. */ unsubscribeUrl?: string; /** * Absolute URL used to resolve bundled /email-assets/* images. Postmark * fetches `<img src>` verbatim so these must be absolute in outgoing mail. */ assetsBaseUrl: string; theme?: EmailTheme;};
const drawerUrl = (base: string, drawer: "quotes" | "comments") => { const sep = base.includes("?") ? "&" : "?"; return `${base}${sep}interactionDrawer=${drawer}`;};
const textBlock = (plaintext: string): PubLeafletPagesLinearDocument.Block => ({ $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.text", plaintext },});
const headingBlock = ( plaintext: string, level: number,): PubLeafletPagesLinearDocument.Block => ({ $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.header", plaintext, level },});
const defaultProps: PostEmailProps = { publicationName: "Publication", publicationUrl: "https://leaflet.pub", postTitle: "Post Title Here", postDescription: "Hello this is a description of everything that is to come", postUrl: "https://leaflet.pub", authorName: "author", publishedAtLabel: "Jan 1, 2026", assetsBaseUrl: "https://leaflet.pub/", did: "did:plc:example", blocks: [ textBlock( "This would be the post. I'll give it a little lorem ipsum to make it look longer so i don't forget which thing is what.", ), headingBlock("This is a Title", 1), textBlock( "We'll keep it nice and separate so we can see what it looks like.", ), headingBlock("And a Header", 2), { $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.unorderedList", children: [ { content: { $type: "pub.leaflet.blocks.text", plaintext: "fruits" }, children: [ { content: { $type: "pub.leaflet.blocks.text", plaintext: "apple", }, }, { content: { $type: "pub.leaflet.blocks.text", plaintext: "banana", }, }, ], }, { content: { $type: "pub.leaflet.blocks.text", plaintext: "veggies", }, }, ], }, }, { $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.blockquote", plaintext: "A quote of some kind.", }, }, { $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.code", plaintext: "const x = 1;", language: "javascript", }, }, { $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.website", src: "https://example.com", title: "Link Title Here", description: "Description on the link", }, }, { $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.button", text: "Click me", url: "https://leaflet.pub", }, }, { $type: "pub.leaflet.pages.linearDocument#block", alignment: "lex:pub.leaflet.pages.linearDocument#textAlignLeft", block: { $type: "pub.leaflet.blocks.button", text: "Aligned left", url: "https://leaflet.pub", }, }, { $type: "pub.leaflet.pages.linearDocument#block", alignment: "lex:pub.leaflet.pages.linearDocument#textAlignRight", block: { $type: "pub.leaflet.blocks.button", text: "Aligned right", url: "https://leaflet.pub", }, }, { $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.horizontalRule" }, }, { $type: "pub.leaflet.pages.linearDocument#block", block: { $type: "pub.leaflet.blocks.math" }, }, ],};
const BLOCK_MARGIN_TOP = 4;const BLOCK_MARGIN_BOTTOM = 16;const BLOCK_MARGIN = `${BLOCK_MARGIN_TOP}px 0 ${BLOCK_MARGIN_BOTTOM}px`;const IMAGE_MARGIN = `${BLOCK_MARGIN_TOP}px auto ${BLOCK_MARGIN_BOTTOM}px`;const HEADING_MARGIN = `${BLOCK_MARGIN_TOP}px 0 0`;const HEADING_FONT_SIZE_PX: Record<1 | 2 | 3, number> = { 1: 26, 2: 18, 3: 16,};
export const PostEmail = (props: Partial<PostEmailProps> = {}) => { const p: PostEmailProps = { ...defaultProps, ...props }; const theme = p.theme ?? defaultEmailTheme; const c = resolveColors(theme); const staticUrl = makeStaticUrl(p.assetsBaseUrl); const byline = [p.authorName, p.publishedAtLabel].filter(Boolean).join(" | ");
const accentLink: CSSProperties = { color: theme.accentBackground, textDecoration: "none", fontFamily: theme.bodyFont, };
return ( <Html> <MailHead> {/* Mobile-only padding tightening. Apple Mail, iOS Mail, Gmail web, and most other clients honor @media in <head>; Outlook desktop ignores it and keeps the wider inline padding, which is fine (it's a desktop client). !important is required so the media-query rule beats the inline `style.padding`. */} <style>{` @media only screen and (max-width: 480px) { .email-page-pad { padding: 12px 8px !important; } .email-card-pad { padding: 16px !important; } } `}</style> </MailHead> <Body style={{ backgroundColor: theme.backgroundColor, color: theme.primary, fontFamily: theme.bodyFont, margin: 0, padding: 0, }} > {/* Page-background wrapper. Gmail strips/replaces <body> styling, so we paint the background on this table's <td> using both the bgcolor HTML attribute (Outlook/Gmail bulletproof) and a backgroundColor style (everything else). */} <table role="presentation" width="100%" cellPadding={0} cellSpacing={0} border={0} bgcolor={theme.backgroundColor} style={{ width: "100%", backgroundColor: theme.backgroundColor, }} > <tbody> <tr> <td align="center" className="email-page-pad" {...bgcolorAttr(theme.backgroundColor)} style={{ backgroundColor: theme.backgroundColor, padding: "24px 16px", }} > {/* Responsive width: `width="100%"` lets the card fill its container, and `max-width: pageWidth` caps it on wider viewports. This keeps it readable at the publication's page width on desktop while shrinking gracefully when the email is viewed in a narrow window (e.g. Apple Mail desktop resized below the page width). Outlook desktop ignores `max-width` and will render full-width — that's a known tradeoff for the simpler markup. */} <table role="presentation" align="center" className="email-card-table" width="100%" cellPadding={0} cellSpacing={0} border={0} style={{ width: "100%", maxWidth: theme.pageWidth, margin: "0 auto", }} > <tbody> <tr> <td className="email-card-pad" {...(theme.showPageBackground ? bgcolorAttr(theme.pageBackground) : {})} style={{ backgroundColor: theme.showPageBackground ? theme.pageBackground : undefined, border: theme.showPageBackground ? `1px solid ${c.border}` : undefined, borderRadius: 8, padding: "20px 24px", }} > <Link href={p.publicationUrl} style={{ ...accentLink, fontWeight: "bold", fontSize: 16, }} > {p.publicationName} </Link>
<ReactEmailHeading as="h1" style={{ color: theme.primary, fontFamily: theme.headingFont, fontWeight: "bold", fontSize: 26, lineHeight: 1.2, margin: "8px 0 0", }} > <Link href={p.postUrl} style={{ color: theme.primary, fontFamily: theme.headingFont, textDecoration: "none", }} > {p.postTitle} </Link> </ReactEmailHeading>
{p.postDescription ? ( <ReactEmailText style={{ color: c.secondary, fontFamily: theme.bodyFont, fontSize: 16, fontStyle: "italic", lineHeight: 1.4, margin: "4px 0 0", }} > {p.postDescription} </ReactEmailText> ) : null}
{byline ? ( <Section style={{ margin: "12px 0 28px", minWidth: "100%" }} > <Row style={{ minWidth: "100%" }}> <Column style={{ verticalAlign: "middle" }}> <ReactEmailText style={{ color: c.tertiary, fontFamily: theme.bodyFont, fontSize: 14, lineHeight: 1.4, margin: 0, }} > {byline} </ReactEmailText> </Column> <Column style={{ width: 12 }} /> <Column style={{ width: 16, verticalAlign: "middle" }} > <Link href={drawerUrl(p.postUrl, "quotes")} style={accentLink} > <Img width={16} height={16} src={staticUrl("quote.png")} alt="See quotes" /> </Link> </Column> <Column style={{ width: 8 }} /> <Column style={{ width: 16, verticalAlign: "middle" }} > <Link href={drawerUrl(p.postUrl, "comments")} style={accentLink} > <Img width={16} height={16} src={staticUrl("comment.png")} alt="See comments" /> </Link> </Column> </Row> </Section> ) : null}
{p.blocks.map((b, i) => ( <BlockRenderer key={i} block={b.block} alignment={b.alignment} did={p.did} assetsBaseUrl={p.assetsBaseUrl} theme={theme} colors={c} /> ))}
{/* Footer: Gmail won't reliably cascade `text-align` from a wrapping <table>, so each centered row is its own <td align="center"> — the bulletproof email-centering pattern. `min-width: 100%` keeps Gmail iOS from shrink-wrapping the table around the short link text. */} <table role="presentation" width="100%" cellPadding={0} cellSpacing={0} border={0} style={{ width: "100%", minWidth: "100%" }} > <tbody> <tr> <td align="center" style={{ paddingTop: 16 }}> <Link href={p.postUrl} style={{ ...accentLink, fontWeight: "bold", fontSize: 14, lineHeight: "20px", }} > Read in Browser </Link> </td> </tr> <tr> <td align="center" style={{ color: c.tertiary, fontFamily: theme.bodyFont, fontSize: 14, lineHeight: "20px", paddingTop: 8, }} > {p.unsubscribeUrl ? ( <Link href={p.unsubscribeUrl} style={{ color: c.tertiary, fontSize: 14, lineHeight: "20px", textDecoration: "underline", }} > Unsubscribe </Link> ) : ( <span style={{ fontStyle: "italic" }}> (preview — not sent to subscribers) </span> )} </td> </tr>
{/* Spacer */} <tr> <td style={{ fontSize: 0, height: 16, lineHeight: "16px", }} > </td> </tr>
{/* Horizontal rule above watermark. <hr> margins are flaky in Gmail, so we use a 1px-tall <td> with border-top instead. */} <tr> <td style={{ borderTop: `1px solid ${c.borderLight}`, fontSize: 0, height: 1, lineHeight: "1px", }} > </td> </tr>
<tr> <td style={{ fontSize: 0, height: 12, lineHeight: "12px", }} > </td> </tr>
<tr> <td align="center"> <LeafletWatermark theme={theme} staticUrl={staticUrl} /> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </Body> </Html> );};// `npm run email:dev` renders this default export. Set// `PREVIEW_PUBLICATION_URI` below to an `at://did:plc:.../pub.leaflet.publication/<rkey>`// to preview the post template with that publication's name, url, and theme —// matching what `send_post_broadcast` and `sendPostPreview` resolve at send time.// Leave it null to render with the static default props.const PREVIEW_PUBLICATION_URI: string | null = "at://did:plc:x2xmijn2egk5g67u3cwkddzy/site.standard.publication/3m2avdoogvs2f";
const PostEmailPreview = async () => { if (!PREVIEW_PUBLICATION_URI) return <PostEmail />;
const { data: publication, error } = await supabaseServerClient .from("publications") .select("record") .eq("uri", PREVIEW_PUBLICATION_URI) .maybeSingle();
if (error || !publication) { console.warn( `[email preview] could not load publication ${PREVIEW_PUBLICATION_URI}:`, error?.message ?? "not found", ); return <PostEmail />; }
const pubProps = emailPropsFromPublication( normalizePublicationRecord(publication.record), ); return <PostEmail {...pubProps} />;};
export default PostEmailPreview;
// Map the lexicon's alignment token to the simple left/center/right values// usable as HTML `align` attributes. `justify` falls through to `left` to// match published web behavior (`justify-start` flex). For buttons we// default to `center` when alignment is unset, matching PostContent.tsx.const resolveButtonAlignment = ( alignment: string | undefined,): "left" | "center" | "right" => { switch (alignment) { case "lex:pub.leaflet.pages.linearDocument#textAlignRight": return "right"; case "lex:pub.leaflet.pages.linearDocument#textAlignLeft": case "lex:pub.leaflet.pages.linearDocument#textAlignJustify": return "left"; case "lex:pub.leaflet.pages.linearDocument#textAlignCenter": default: return "center"; }};
const BlockRenderer = ({ block, alignment, did, assetsBaseUrl, theme, colors,}: { block: PubLeafletPagesLinearDocument.Block["block"]; alignment?: string; did: string; assetsBaseUrl: string; theme: EmailTheme; colors: ResolvedColors;}) => { if (PubLeafletBlocksText.isMain(block)) { return ( <ReactEmailText style={{ color: theme.primary, fontFamily: theme.bodyFont, fontSize: 16, lineHeight: 1.5, margin: BLOCK_MARGIN, }} > {block.plaintext || " "} </ReactEmailText> ); } if (PubLeafletBlocksHeader.isMain(block)) { const level = Math.min(3, Math.max(1, Math.floor(block.level ?? 1))) as | 1 | 2 | 3; return ( <ReactEmailHeading as={`h${level}`} style={{ color: level === 3 ? colors.secondary : theme.primary, fontFamily: theme.headingFont, fontWeight: "bold", fontSize: HEADING_FONT_SIZE_PX[level], lineHeight: 1.25, margin: HEADING_MARGIN, }} > {block.plaintext} </ReactEmailHeading> ); } if (PubLeafletBlocksBlockquote.isMain(block)) { return ( <Section style={{ margin: BLOCK_MARGIN }}> <Row> <Column style={{ width: 2, backgroundColor: colors.border }} /> <Column style={{ width: 8 }} /> <Column> <ReactEmailText style={{ color: theme.primary, fontFamily: theme.bodyFont, fontSize: 16, lineHeight: 1.5, margin: "2px 0", }} > {block.plaintext} </ReactEmailText> </Column> </Row> </Section> ); } if (PubLeafletBlocksCode.isMain(block)) { return ( <CodeBlock code={block.plaintext} language={block.language} borderColor={colors.borderLight} /> ); } if (PubLeafletBlocksImage.isMain(block)) { const src = blobRefToSrc(block.image.ref, did, assetsBaseUrl); // Deliberately no numeric `width`/`height` HTML attributes: Outlook // honors those over CSS `max-width`, so a 1200px natural-size photo // would blow out our 28rem container. `max-width: <natural>px` keeps // smaller images from being upscaled. const naturalWidth = block.aspectRatio?.width; return ( <Img src={src} alt={block.alt ?? ""} style={{ display: "block", height: "auto", margin: IMAGE_MARGIN, maxWidth: naturalWidth ? `${naturalWidth}px` : "100%", width: "100%", }} /> ); } if (PubLeafletBlocksWebsite.isMain(block)) { const previewSrc = block.previewImage ? blobRefToSrc(block.previewImage.ref, did, assetsBaseUrl) : undefined; return ( <LinkBlock url={block.src} title={block.title} description={block.description} previewSrc={previewSrc} theme={theme} colors={colors} /> ); } if (PubLeafletBlocksButton.isMain(block)) { return ( <ButtonBlock text={block.text} url={block.url} align={resolveButtonAlignment(alignment)} theme={theme} /> ); } if (PubLeafletBlocksHorizontalRule.isMain(block)) { return ( <Hr style={{ border: "none", borderTop: `1px solid ${colors.borderLight}`, margin: "12px 0", width: "100%", }} /> ); } if (PubLeafletBlocksUnorderedList.isMain(block)) { return ( <List items={block.children} style="unordered" did={did} assetsBaseUrl={assetsBaseUrl} theme={theme} /> ); } if (PubLeafletBlocksOrderedList.isMain(block)) { return ( <List items={block.children} style="ordered" did={did} assetsBaseUrl={assetsBaseUrl} theme={theme} /> ); } return <BlockNotSupported theme={theme} colors={colors} />;};
// Helpers used by the confirm-email templates inside their <Tailwind>// context. Layout (margin/font-size/line-height) is inline so they render// without Tailwind too; color and font-family are left to the caller via// className or a `style` override so Tailwind classes can win.export const Text = (props: { children: React.ReactNode; noPadding?: boolean; small?: boolean; className?: string; style?: CSSProperties;}) => { const fontSize = props.small ? 14 : 16; return ( <ReactEmailText className={props.className} style={{ fontSize, lineHeight: 1.5, margin: props.noPadding ? 0 : BLOCK_MARGIN, ...props.style, }} > {props.children} </ReactEmailText> );};
export const Heading = (props: { children: React.ReactNode; noPadding?: boolean; as: "h1" | "h2" | "h3"; className?: string; style?: CSSProperties;}) => { const fontSize = props.as === "h1" ? 26 : props.as === "h2" ? 18 : 16; return ( <ReactEmailHeading as={props.as} className={props.className} style={{ fontWeight: "bold", fontSize, lineHeight: 1.25, margin: props.noPadding ? 0 : HEADING_MARGIN, ...props.style, }} > {props.children} </ReactEmailHeading> );};
type ListItem = | PubLeafletBlocksUnorderedList.ListItem | PubLeafletBlocksOrderedList.ListItem;
const listItemPlaintext = (item: ListItem): string => { const content = item.content; if (PubLeafletBlocksText.isMain(content)) return content.plaintext; if (PubLeafletBlocksHeader.isMain(content)) return content.plaintext; return "";};
export const List = ({ items, style, did, assetsBaseUrl, theme = defaultEmailTheme,}: { items: ListItem[]; style: "ordered" | "unordered"; did: string; assetsBaseUrl: string; theme?: EmailTheme;}) => { const Tag = style === "ordered" ? "ol" : "ul"; return ( <Section style={{ margin: BLOCK_MARGIN }}> <Tag style={{ color: theme.primary, fontFamily: theme.bodyFont, fontSize: 16, lineHeight: 1.5, margin: 0, paddingLeft: 24, }} > {items.map((item, i) => { const plaintext = listItemPlaintext(item); const nestedUnordered = item.children && style === "unordered" ? (item.children as PubLeafletBlocksUnorderedList.ListItem[]) : (item as PubLeafletBlocksOrderedList.ListItem) .unorderedListChildren?.children; const nestedOrdered = item.children && style === "ordered" ? (item.children as PubLeafletBlocksOrderedList.ListItem[]) : (item as PubLeafletBlocksUnorderedList.ListItem) .orderedListChildren?.children; return ( <React.Fragment key={i}> <li style={{ margin: "2px 0", paddingLeft: 4 }}> {typeof item.checked === "boolean" ? `${item.checked ? "☑ " : "☐ "}${plaintext}` : plaintext} </li> {nestedUnordered && nestedUnordered.length > 0 ? ( <List items={nestedUnordered} style="unordered" did={did} assetsBaseUrl={assetsBaseUrl} theme={theme} /> ) : null} {nestedOrdered && nestedOrdered.length > 0 ? ( <List items={nestedOrdered} style="ordered" did={did} assetsBaseUrl={assetsBaseUrl} theme={theme} /> ) : null} </React.Fragment> ); })} </Tag> </Section> );};
export const LinkBlock = ({ url, title, description, previewSrc, theme = defaultEmailTheme, colors,}: { url?: string; title?: string; description?: string; previewSrc?: string; theme?: EmailTheme; colors?: ResolvedColors;} = {}) => { const c = colors ?? resolveColors(theme); const displayUrl = (() => { if (!url) return "www.example.com"; try { return new URL(url).hostname; } catch { return url; } })(); return ( <Section style={{ margin: BLOCK_MARGIN, minWidth: "100%" }}> <Row style={{ border: `1px solid ${theme.accentBackground}`, borderRadius: 8, minWidth: "100%", }} > <Column style={{ padding: "8px 12px", verticalAlign: "top", // Long URL-like titles or domains have no break opportunities // and would otherwise force the column wider than the card. wordBreak: "break-word", }} > <Link href={url} style={{ color: theme.primary, fontFamily: theme.bodyFont, fontWeight: "bold", fontSize: 16, textDecoration: "none", wordBreak: "break-word", }} > {title || displayUrl} </Link> {description ? ( <ReactEmailText style={{ color: c.secondary, fontFamily: theme.bodyFont, fontSize: 16, lineHeight: 1.4, margin: "4px 0 0", wordBreak: "break-word", }} > {description} </ReactEmailText> ) : null} <ReactEmailText style={{ color: theme.accentBackground, fontFamily: theme.bodyFont, fontSize: 14, fontStyle: "italic", lineHeight: 1.4, margin: "4px 0 0", wordBreak: "break-word", }} > {displayUrl} </ReactEmailText> </Column> {previewSrc ? ( <Column style={{ padding: "8px 8px 8px 0", verticalAlign: "top", width: 112, }} > <Img src={previewSrc} alt="" style={{ borderRadius: 4, display: "block", height: 88, objectFit: "cover", width: "100%", }} /> </Column> ) : null} </Row> </Section> );};
export const ButtonBlock = ({ text, url, align = "center", theme = defaultEmailTheme,}: { text: string; url: string; align?: "left" | "center" | "right"; theme?: EmailTheme;}) => { // Bulletproof button: table-based so Outlook (which ignores padding on // <a>) renders a real clickable button. The `<td>` carries the bgcolor // attribute and padding; the `<a>` is `display: block` so the entire // padded area is clickable. Alignment via the table's `align` HTML // attribute — Gmail won't reliably cascade `text-align` from a wrapping // <Section>, so we anchor on the table itself. return ( <Section style={{ margin: BLOCK_MARGIN, minWidth: "100%" }}> <table role="presentation" align={align} cellPadding={0} cellSpacing={0} border={0} style={{ borderCollapse: "separate" }} > <tbody> <tr> <td align="center" {...bgcolorAttr(theme.accentBackground)} style={{ backgroundColor: theme.accentBackground, borderRadius: 6, padding: "10px 20px", }} > <Link href={url} style={{ color: theme.accentText, display: "block", fontFamily: theme.bodyFont, fontSize: 16, fontWeight: "bold", lineHeight: "20px", textDecoration: "none", }} > {text} </Link> </td> </tr> </tbody> </table> </Section> );};
export const CodeBlock = ({ code, language, borderColor,}: { code?: string; language?: string; borderColor?: string;} = {}) => { return ( <ReactEmailCodeBlock style={{ border: `1px solid ${borderColor ?? "rgba(0, 0, 0, 0.1)"}`, borderRadius: 4, boxSizing: "border-box", margin: BLOCK_MARGIN, maxWidth: "100%", // <pre> defaults to `white-space: pre`, so long lines blow past the // card on mobile. Wrap, and break long tokens (URLs, identifiers) // when nothing else fits. overflow: "hidden", padding: 8, whiteSpace: "pre-wrap", wordBreak: "break-word", }} code={code ?? ""} theme={dracula} language={(language as PrismLanguage) || "text"} /> );};
export const BlockNotSupported = ({ theme = defaultEmailTheme, colors,}: { theme?: EmailTheme; colors?: ResolvedColors;} = {}) => { const c = colors ?? resolveColors(theme); return ( <Section style={{ backgroundColor: c.borderLight, borderRadius: 4, margin: BLOCK_MARGIN, padding: "16px 12px", }} > <ReactEmailText style={{ color: c.tertiary, fontFamily: theme.bodyFont, fontSize: 14, fontStyle: "italic", lineHeight: 1.4, margin: 0, textAlign: "center", }} > This media isn't supported in email... </ReactEmailText> <ReactEmailText style={{ fontSize: 14, lineHeight: 1.4, margin: "4px 0 0", textAlign: "center", }} > <Link style={{ color: theme.accentBackground, fontWeight: "bold", textDecoration: "none", }} > See full post </Link> </ReactEmailText> </Section> );};