From 1fac1e0e2caf0ab6733fb3412bf45e94ceaab7b4 Mon Sep 17 00:00:00 2001
From: Karl Ludwig Weise <ludwig@ludwigweise.de>
Date: Mon, 24 Nov 2025 21:42:14 +0100
Subject: [PATCH] Completed email renderer poc for appointment confirmation

---
 project.inlang/messages/de.json               | 11 +++
 project.inlang/messages/en.json               | 11 +++
 src/lib/const/locales.ts                      |  2 +
 src/lib/emails/AppointmentBooked.svelte       | 72 +++++++++++++------
 src/lib/emails/components/EmailButton.svelte  |  5 +-
 .../emails/components/EmailHeadline.svelte    |  7 ++
 src/lib/emails/components/EmailLayout.svelte  | 34 ++-------
 src/lib/emails/components/EmailText.svelte    |  7 +-
 src/lib/emails/utils.ts                       | 58 +++++++++++++++
 src/lib/server/email/email-service.ts         | 43 +++++++++--
 .../[test=dev]/e-mail-templates/+server.ts    | 14 ----
 .../appointment-booked/+server.ts             | 42 +++++++++++
 12 files changed, 233 insertions(+), 73 deletions(-)
 create mode 100644 src/lib/emails/components/EmailHeadline.svelte
 delete mode 100644 src/routes/(local-only)/[test=dev]/e-mail-templates/+server.ts
 create mode 100644 src/routes/(local-only)/[test=dev]/e-mail-templates/appointment-booked/+server.ts

diff --git a/project.inlang/messages/de.json b/project.inlang/messages/de.json
index ac6c353..618d5ab 100644
--- a/project.inlang/messages/de.json
+++ b/project.inlang/messages/de.json
@@ -907,5 +907,16 @@
 				"reserved": "reserviert"
 			}
 		}
+	},
+	"emails": {
+		"poweredBy": "Betrieben mit",
+		"greeting": "Hallo {name},",
+		"oclock": "Uhr",
+		"appointmentBooked": {
+			"subject": "{channel} bei {tenant} gebucht",
+			"introduction": "Ihr Termin wurde gebucht.",
+			"action": "Termin absagen",
+			"reason": "Sie erhalten diese E-Mail, weil jemand mit Ihrer E-Mail Adresse einen Termin bei gebucht hat."
+		}
 	}
 }
diff --git a/project.inlang/messages/en.json b/project.inlang/messages/en.json
index 1af7752..7d116f5 100644
--- a/project.inlang/messages/en.json
+++ b/project.inlang/messages/en.json
@@ -916,5 +916,16 @@
 				"reserved": "reserved"
 			}
 		}
+	},
+	"emails": {
+		"poweredBy": "Powered by",
+		"greeting": "Hello {name},",
+		"oclock": "",
+		"appointmentBooked": {
+			"subject": "{channel} at {tenant} booked successfully",
+			"introduction": "your appointment for has been booked.",
+			"action": "Cancel appointment",
+			"reason": "You are receiving this email because someone booked an appointment with your e-mail address."
+		}
 	}
 }
diff --git a/src/lib/const/locales.ts b/src/lib/const/locales.ts
index dabcb15..99ced3b 100644
--- a/src/lib/const/locales.ts
+++ b/src/lib/const/locales.ts
@@ -2,6 +2,8 @@ import { m } from "$i18n/messages";
 
 export const supportedLocales = ["en", "de"] as const;
 
+export type SupportedLocale = (typeof supportedLocales)[number];
+
 export const translatedLocales = {
   en: m["locales.en"](),
   de: m["locales.de"](),
diff --git a/src/lib/emails/AppointmentBooked.svelte b/src/lib/emails/AppointmentBooked.svelte
index fd8ec61..b8290c6 100644
--- a/src/lib/emails/AppointmentBooked.svelte
+++ b/src/lib/emails/AppointmentBooked.svelte
@@ -1,33 +1,65 @@
-<script lang="js">
+<script lang="ts">
   import { m } from "$i18n/messages";
-  import { getLocale, setLocale } from "$i18n/runtime";
+  import { setLocale } from "$i18n/runtime";
+  import type { SupportedLocale } from "$lib/const/locales";
+  import type { SelectTenant } from "$lib/server/db/central-schema";
+  import { type SelectAppointment } from "$lib/server/db/tenant-schema";
+  import type { SelectClient } from "$lib/server/email/email-service";
   import EmailButton from "./components/EmailButton.svelte";
+  import EmailHeadline from "./components/EmailHeadline.svelte";
   import EmailLayout from "./components/EmailLayout.svelte";
   import EmailText from "./components/EmailText.svelte";
+  import { renderAppointmentDate, renderAppointmentTime } from "./utils";
 
-  let { name, locale } = $props();
+  let {
+    locale,
+    user,
+    tenant,
+    channel,
+    appointment,
+    address,
+    cancelUrl,
+  }: {
+    locale: SupportedLocale;
+    user: SelectClient;
+    tenant: SelectTenant;
+    channel: string;
+    appointment: SelectAppointment & { agentName: string };
+    address: {
+      street: string;
+      number: string;
+      additionalAddressInfo?: string;
+      zip: string;
+      city: string;
+    };
+    cancelUrl: string;
+  } = $props();
 
   setLocale(locale);
-  console.log("Locale in AppointmentBooked:", getLocale());
 </script>
 
 <EmailLayout>
-  <p>{m["absences.add.description"]()} {name},</p>
-  <p>your appointment has been booked.</p>
-  <h2>Vaccination Appointment</h2>
-  <p>
-    Dr. John Doe<br />
-    June 30, 2024<br />
-    10:00 AM - 10:15 AM
-  </p>
-  <h2>Praxis Dr. Jane Doe</h2>
-  <p>
-    Musterstraße 10<br />
-    Etage 4<br />
-    12345 Musterstadt
-  </p>
-  <EmailButton href="https://open-reception.org/appointments">View Appointments</EmailButton>
+  <EmailText variant="md">{m["emails.greeting"]({ name: user.email })}</EmailText>
+  <EmailText variant="md">
+    {m["emails.appointmentBooked.introduction"]()}
+  </EmailText>
+  <EmailHeadline>{channel}</EmailHeadline>
+  <EmailText variant="md">
+    {appointment.agentName}<br />
+    {renderAppointmentDate(appointment.appointmentDate, locale)}<br />
+    {renderAppointmentTime(appointment.appointmentDate, locale)}
+    {m["emails.oclock"]()}
+  </EmailText>
+  <EmailHeadline>{tenant.longName}</EmailHeadline>
+  <EmailText variant="md">
+    {address.street}
+    {address.number}<br />
+    {#if address.additionalAddressInfo}{address.additionalAddressInfo}<br />{/if}
+    {address.zip}
+    {address.city}
+  </EmailText>
+  <EmailButton href={cancelUrl}>{m["emails.appointmentBooked.action"]()}</EmailButton>
   <EmailText variant="md" color="text-light">
-    You are receiving this email because someone booked an appointment with your e-mail address.
+    {m["emails.appointmentBooked.reason"]()}
   </EmailText>
 </EmailLayout>
diff --git a/src/lib/emails/components/EmailButton.svelte b/src/lib/emails/components/EmailButton.svelte
index e16724e..066a34a 100644
--- a/src/lib/emails/components/EmailButton.svelte
+++ b/src/lib/emails/components/EmailButton.svelte
@@ -15,8 +15,7 @@
     .button {
       font-size: 16px;
       line-height: 1.5;
-      color: #ffffff;
-      background-color: #000000;
+      border: 1px solid #000000;
       padding: 12px 32px;
       padding: 0.75rem 2rem;
       text-decoration: none;
@@ -24,8 +23,8 @@
       border-radius: 12px;
     }
     .button:hover {
-      background-color: #333333;
       cursor: pointer;
+      background-color: rgb(0 0 0 / 0.1);
     }
   </style>
 </svelte:head>
diff --git a/src/lib/emails/components/EmailHeadline.svelte b/src/lib/emails/components/EmailHeadline.svelte
new file mode 100644
index 0000000..47ee03c
--- /dev/null
+++ b/src/lib/emails/components/EmailHeadline.svelte
@@ -0,0 +1,7 @@
+<script lang="js">
+  let { children, variant = "h2", class: className = "" } = $props();
+</script>
+
+<svelte:element this={variant} class={[className].filter((it) => it).join(" ")}>
+  {@render children?.()}
+</svelte:element>
diff --git a/src/lib/emails/components/EmailLayout.svelte b/src/lib/emails/components/EmailLayout.svelte
index 04346b6..da760e4 100644
--- a/src/lib/emails/components/EmailLayout.svelte
+++ b/src/lib/emails/components/EmailLayout.svelte
@@ -1,4 +1,5 @@
 <script lang="js">
+  import { m } from "$i18n/messages";
   import EmailText from "./EmailText.svelte";
 
   let { children } = $props();
@@ -6,16 +7,12 @@
 
 <div class="page">
   <div class="container">
-    <div class="paper">
-      <div class="content">
-        {@render children?.()}
-      </div>
-    </div>
-    <div class="branding">
-      <EmailText variant="sm" color="text-light">
-        Powered by <a href="https://open-reception.org">OpenReception</a>
-      </EmailText>
+    <div class="content">
+      {@render children?.()}
     </div>
+    <EmailText variant="sm" color="text-light" class="branding">
+      {m["emails.poweredBy"]()} <a href="https://open-reception.org">OpenReception</a>
+    </EmailText>
   </div>
 </div>
 
@@ -53,36 +50,19 @@
       margin-top: 0;
     }
     .page {
-      background-color: #f6f6f6;
       min-height: 100%;
       min-height: 100vh;
       box-sizing: border-box;
       width: 100%;
-      padding: 0 16px 16px;
-      padding: 0 1rem 1rem;
     }
     .container {
       max-width: 600px;
       margin: 0 auto;
     }
-    .content {
-      padding: 24px;
-      padding: 1.5rem;
-    }
-    .paper {
-      background-color: white;
-      width: 100%;
-      box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.1);
-      overflow: hidden;
-      border-bottom-right-radius: 6px;
-      border-bottom-left-radius: 6px;
-    }
     .branding {
       margin: 16px 0;
       margin: 1rem 0;
-      padding: 0 16px;
-      padding: 0 1rem;
-      text-align: center;
+      width: 100%;
     }
   </style>
 </svelte:head>
diff --git a/src/lib/emails/components/EmailText.svelte b/src/lib/emails/components/EmailText.svelte
index 95734c9..c8a396b 100644
--- a/src/lib/emails/components/EmailText.svelte
+++ b/src/lib/emails/components/EmailText.svelte
@@ -1,8 +1,8 @@
 <script lang="js">
-  let { children, variant, color } = $props();
+  let { children, variant, color = "text-darkest", class: className = "" } = $props();
 </script>
 
-<span class={[variant, color].join(" ")}>{@render children?.()}</span>
+<p class={[variant, color, className].filter((it) => it).join(" ")}>{@render children?.()}</p>
 
 <svelte:head>
   <style>
@@ -22,6 +22,9 @@
       font-size: 10px;
       line-height: 1.25;
     }
+    .text-darkest {
+      color: #000000;
+    }
     .text-light {
       color: #888888;
     }
diff --git a/src/lib/emails/utils.ts b/src/lib/emails/utils.ts
index b7ce3f4..ae5ae75 100644
--- a/src/lib/emails/utils.ts
+++ b/src/lib/emails/utils.ts
@@ -1,3 +1,7 @@
+import type { SupportedLocale } from "$lib/const/locales";
+import { format, type Locale } from "date-fns";
+import { de, enUS } from "date-fns/locale";
+
 // is not exported from svelte
 export type RenderOutput = {
   head: string;
@@ -19,3 +23,57 @@ export const renderOutputToHtml = (renderOutput: RenderOutput) => {
     </html>
   `;
 };
+
+export const htmlToText = (html: string) => {
+  let text = html;
+
+  // Replace anchor tags with "Link Text: URL" format
+  const newLinePlaceholder = "{new-line}";
+  text = text.replace(/<a\s+(?:[^>]*?\s+)?href="([^"]*)"[^>]*>(.*?)<\/a>/gi, `$2: $1<br /><br />`);
+
+  // Remove script and style tags and their content
+  text = text.replace(/<script[^>]*>[\s\S]*?<\/script>/gi, "");
+  text = text.replace(/<style[^>]*>[\s\S]*?<\/style>/gi, "");
+
+  // Unify breaks
+  text = text.replace(new RegExp("<br />", "g"), "<br/>");
+
+  // Placeholder for new lines
+  text = text.replace(new RegExp("<br/>", "g"), newLinePlaceholder);
+
+  // Replace block-level tags with newline placeholders
+  const lineBreakingTags = ["p", "h1", "h2", "h3", "h4", "h5", "h6", "a"];
+  lineBreakingTags.forEach((tag) => {
+    const regexOpen = new RegExp(`</${tag}>`, "g");
+    const regexClose = new RegExp(`</${tag}>`, "g");
+    text = text
+      .replace(regexOpen, newLinePlaceholder + newLinePlaceholder)
+      .replace(regexClose, newLinePlaceholder + newLinePlaceholder);
+  });
+
+  // Remove all remaining HTML tags
+  text = text.replace(/<[^>]*>/g, "");
+
+  // Clean up extra whitespace
+  text = text.replace(/\s+/g, " ").trim();
+
+  // Replace newline placeholders with actual newlines
+  text = text.replace(new RegExp(`${newLinePlaceholder} `, "g"), "\n");
+  text = text.replace(new RegExp(newLinePlaceholder, "g"), "\n");
+  text = text.trim();
+
+  return text;
+};
+
+const localeMap: { [key: string]: Locale } = {
+  en: enUS,
+  de: de,
+};
+
+export const renderAppointmentDate = (date: Date, locale: SupportedLocale) => {
+  return format(date, "PPP", { locale: localeMap[locale] as unknown as Locale });
+};
+
+export const renderAppointmentTime = (date: Date, locale: SupportedLocale) => {
+  return format(date, "p", { locale: localeMap[locale] as unknown as Locale });
+};
diff --git a/src/lib/server/email/email-service.ts b/src/lib/server/email/email-service.ts
index 574e8fa..ff3a91d 100644
--- a/src/lib/server/email/email-service.ts
+++ b/src/lib/server/email/email-service.ts
@@ -10,8 +10,13 @@ import type { SelectTenant, SelectUser } from "$lib/server/db/central-schema";
 import { getTenantDb } from "$lib/server/db";
 import * as tenantSchema from "$lib/server/db/tenant-schema";
 import { eq } from "drizzle-orm";
+import { setLocale } from "$i18n/runtime";
+import { m } from "$i18n/messages";
+import { render } from "svelte/server";
+import AppointmentBooked from "$lib/emails/AppointmentBooked.svelte";
+import { htmlToText, renderOutputToHtml } from "$lib/emails/utils";
 
-type SelectClient = {
+export type SelectClient = {
   email: string;
   language: string;
 };
@@ -195,15 +200,39 @@ export async function sendAppointmentCreatedEmail(
       ? { email: user.email, language: user.language }
       : createEmailRecipient(user);
 
+  // Set language
   const language = (recipient.language as Language) || "en";
-  const subject = language === "en" ? "Appointment Confirmed" : "Termin bestätigt";
+  setLocale(language);
 
-  await sendTemplatedEmail("appointment-created", recipient, subject, language, tenant, {
-    appointment,
-    appointmentDate: appointment.appointmentDate,
-    title: channelTitle || appointment.channelId,
-    cancelUrl,
+  // Generate email
+  const subject = m["emails.appointmentBooked.subject"]({
+    channel: channelTitle || appointment.channelId,
+    tenant: tenant.longName,
   });
+  const emailRender = render(AppointmentBooked, {
+    props: {
+      locale: language,
+      channel: channelTitle || appointment.channelId,
+      user,
+      tenant,
+      // TODO: Add agentName
+      appointment: { ...appointment, agentName: "Dr. John Doe" },
+      // TODO: Add address info
+      address: {
+        street: "Musterstraße",
+        number: "1",
+        additionalAddressInfo: "Hinterhaus",
+        zip: "20000",
+        city: "Hamburg",
+      },
+      // TODO: Shouldn't cancelUrl always be defined?
+      cancelUrl: cancelUrl || "",
+    },
+  });
+  const html = renderOutputToHtml(emailRender);
+  const text = htmlToText(html);
+
+  await sendEmail(recipient, subject, html, text);
 }
 
 /**
diff --git a/src/routes/(local-only)/[test=dev]/e-mail-templates/+server.ts b/src/routes/(local-only)/[test=dev]/e-mail-templates/+server.ts
deleted file mode 100644
index 18d3e6b..0000000
--- a/src/routes/(local-only)/[test=dev]/e-mail-templates/+server.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-import AppointmentBooked from "$lib/emails/AppointmentBooked.svelte";
-import { renderOutputToHtml } from "$lib/emails/utils";
-import type { RequestHandler } from "@sveltejs/kit";
-import { render } from "svelte/server";
-
-export const GET: RequestHandler = async () => {
-  const emailRender = render(AppointmentBooked, { props: { name: "John Doe", locale: "de" } });
-
-  return new Response(renderOutputToHtml(emailRender), {
-    headers: {
-      "Content-Type": "text/html",
-    },
-  });
-};
diff --git a/src/routes/(local-only)/[test=dev]/e-mail-templates/appointment-booked/+server.ts b/src/routes/(local-only)/[test=dev]/e-mail-templates/appointment-booked/+server.ts
new file mode 100644
index 0000000..e1f0b6a
--- /dev/null
+++ b/src/routes/(local-only)/[test=dev]/e-mail-templates/appointment-booked/+server.ts
@@ -0,0 +1,42 @@
+import AppointmentBooked from "$lib/emails/AppointmentBooked.svelte";
+import { renderOutputToHtml, htmlToText } from "$lib/emails/utils";
+import type { SelectTenant } from "$lib/server/db/central-schema";
+import type { SelectAppointment } from "$lib/server/db/tenant-schema";
+import type { RequestHandler } from "@sveltejs/kit";
+import { render } from "svelte/server";
+
+export const GET: RequestHandler = async () => {
+  const emailRender = render(AppointmentBooked, {
+    props: {
+      locale: "en",
+      user: {
+        email: "max.mustermann@example.com",
+        language: "en",
+      },
+      tenant: { longName: "Praxis Dr. Jane Doe" } as SelectTenant,
+      appointment: {
+        appointmentDate: new Date("2024-06-30T10:00:00"),
+        agentName: "Dr. John Doe",
+      } as SelectAppointment & { agentName: string },
+      channel: "Vaccination Appointment",
+      address: {
+        street: "Musterstraße",
+        number: "1",
+        additionalAddressInfo: "Hinterhaus",
+        zip: "20000",
+        city: "Hamburg",
+      },
+      cancelUrl: "https://open-reception.org/appointments/cancel/abc123",
+    },
+  });
+  const html = renderOutputToHtml(emailRender);
+  const text = htmlToText(html);
+
+  // Output for testing purposes
+  console.log(text);
+  return new Response(html, {
+    headers: {
+      "Content-Type": "text/html",
+    },
+  });
+};