Files
SRCmail/lib/quote-header.ts
T

83 lines
2.9 KiB
TypeScript

// Builds the default reply/forward quote header and runs it through the
// emailHooks.onBuildQuoteHeader transform so plugins can replace it (e.g.
// with an Outlook-style From/Sent/To/Cc/Subject block).
//
// This module is the single source of truth for the default header strings -
// the composer keeps the same defaults inline as a fallback, but production
// flow goes through here.
import { formatDateTime } from "@/lib/utils";
import { emailHooks } from "@/lib/plugin-hooks";
import type { QuoteHeader, QuoteHeaderContext } from "@/lib/plugin-types";
interface BuildArgs {
mode: "reply" | "replyAll" | "forward";
email: {
from?: { email?: string; name?: string }[];
to?: { email?: string; name?: string }[];
cc?: { email?: string; name?: string }[];
subject?: string;
receivedAt?: string;
};
newTo: string[];
newCc: string[];
locale: string;
timeFormat: "12h" | "24h";
unknownLabel: string;
}
function defaultHeader(args: BuildArgs): QuoteHeader {
const { mode, email, timeFormat, unknownLabel } = args;
const date = email.receivedAt
? formatDateTime(email.receivedAt, timeFormat, {
weekday: "short",
year: "numeric",
month: "short",
day: "numeric",
})
: "";
const from = email.from?.[0];
const fromStr = from ? `${from.name || from.email}` : unknownLabel;
const subject = email.subject || "";
if (mode === "forward") {
const text = `---------- Forwarded message ----------\nFrom: ${fromStr}\nDate: ${date}\nSubject: ${subject}\n`;
const html = `<div>---------- Forwarded message ----------<br>From: ${fromStr}<br>Date: ${date}<br>Subject: ${subject}<br><br></div>`;
return { html, text, wrapInBlockquote: false };
}
const text = `On ${date}, ${fromStr} wrote:\n`;
const html = `<div>On ${date}, ${fromStr} wrote:<br></div>`;
return { html, text, wrapInBlockquote: true };
}
export async function buildQuoteHeader(args: BuildArgs): Promise<QuoteHeader> {
const def = defaultHeader(args);
const ctx: QuoteHeaderContext = {
mode: args.mode,
newTo: args.newTo,
newCc: args.newCc,
from: args.email.from?.[0]?.email
? { name: args.email.from[0].name, email: args.email.from[0].email }
: null,
to: (args.email.to ?? [])
.filter((r): r is { email: string; name?: string } => !!r.email)
.map((r) => ({ name: r.name, email: r.email })),
cc: (args.email.cc ?? [])
.filter((r): r is { email: string; name?: string } => !!r.email)
.map((r) => ({ name: r.name, email: r.email })),
subject: args.email.subject ?? "",
date: args.email.receivedAt
? formatDateTime(args.email.receivedAt, args.timeFormat, {
weekday: "short",
year: "numeric",
month: "short",
day: "numeric",
})
: "",
receivedAt: args.email.receivedAt,
locale: args.locale,
};
return emailHooks.onBuildQuoteHeader.transform<QuoteHeader>(def, ctx);
}