From 394fc3fd226121a1672a2251b9dd798ae6790993 Mon Sep 17 00:00:00 2001
From: Arthur Belleville <arthur.belleville@datadoghq.com>
Date: Sun, 27 Jul 2025 14:28:21 +0200
Subject: [PATCH] Add ICS export functionality to Planning

---
 ui/src/pages/planning.tsx | 43 ++++++++++++++++++++
 ui/src/utils/helpers.ts   | 85 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 128 insertions(+)

diff --git a/ui/src/pages/planning.tsx b/ui/src/pages/planning.tsx
index f9e0b2d..b3f2f75 100644
--- a/ui/src/pages/planning.tsx
+++ b/ui/src/pages/planning.tsx
@@ -9,6 +9,7 @@ import {
   SelectListItem,
 } from "@ui/ui-library/select";
 import { Outlet, useNavigate, useParams } from "react-router-dom";
+import { generateICSFromEvents, downloadICSFile } from "@ui/utils/helpers";
 
 type ViewType = "month" | "week" | "day";
 
@@ -31,6 +32,27 @@ export const PlanningPage = () => {
 
   const deleteEvent = useDeleteEvent();
 
+  const handleExportICS = () => {
+    if (!tabloEvents || tabloEvents.length === 0) {
+      return;
+    }
+
+    const calendarName =
+      selectedTabloId === "all"
+        ? "Planning - Tous les tablos"
+        : tablos?.find((t) => t.id === selectedTabloId)?.name || "Planning";
+
+    const icsContent = generateICSFromEvents(tabloEvents, calendarName);
+    const filename =
+      selectedTabloId === "all"
+        ? "planning-tous-tablos.ics"
+        : `planning-${
+            tablos?.find((t) => t.id === selectedTabloId)?.name || "tablo"
+          }.ics`;
+
+    downloadICSFile(icsContent, filename);
+  };
+
   const navigateToCreateEvent = (date: Date, tablo_id: string) => {
     if (tablo_id === "all") {
       navigate({
@@ -732,6 +754,27 @@ export const PlanningPage = () => {
               </div>
 
               <div className="flex items-center space-x-2">
+                <button
+                  onClick={handleExportICS}
+                  disabled={!tabloEvents || tabloEvents.length === 0}
+                  className="px-3 py-1.5 text-sm border border-gray-300 dark:border-gray-600 rounded hover:bg-gray-50 dark:hover:bg-gray-700 text-gray-700 dark:text-gray-300 disabled:opacity-50 disabled:cursor-not-allowed flex items-center space-x-1"
+                  title="Exporter en format ICS"
+                >
+                  <svg
+                    className="w-4 h-4"
+                    fill="none"
+                    stroke="currentColor"
+                    viewBox="0 0 24 24"
+                  >
+                    <path
+                      strokeLinecap="round"
+                      strokeLinejoin="round"
+                      strokeWidth="2"
+                      d="M12 10v6m0 0l-3-3m3 3l3-3M3 17V7a2 2 0 012-2h6l2 2h6a2 2 0 012 2v10a2 2 0 01-2 2H5a2 2 0 01-2-2z"
+                    />
+                  </svg>
+                  <span>Exporter</span>
+                </button>
                 <div className="flex bg-gray-100 dark:bg-gray-700 rounded-lg p-1">
                   {(["month", "week", "day"] as ViewType[]).map((view) => (
                     <button
diff --git a/ui/src/utils/helpers.ts b/ui/src/utils/helpers.ts
index 30893b1..50f7a15 100644
--- a/ui/src/utils/helpers.ts
+++ b/ui/src/utils/helpers.ts
@@ -1,4 +1,5 @@
 import { Database } from "@ui/types/database.types";
+import { EventAndTablo } from "@ui/types/events.types";
 import jsPDF from "jspdf";
 
 export const calculateTax = (amount: number, taxRate: number) => {
@@ -79,3 +80,87 @@ export const exportDevisToPdf = (devis: Devis) => {
 
 export const isStaging = import.meta.env.MODE === "staging";
 export const isProd = import.meta.env.MODE === "production";
+
+// ICS Export functionality
+export const generateICSFromEvents = (
+  events: EventAndTablo[],
+  calendarName: string = "Planning"
+) => {
+  const formatDate = (date: string, time: string) => {
+    // Combine date (YYYY-MM-DD) and time (HH:MM:SS) into ISO format then convert to UTC
+    const dateTime = new Date(`${date}T${time}`);
+    return dateTime.toISOString().replace(/[-:]/g, "").split(".")[0] + "Z";
+  };
+
+  const escapeICSText = (text: string) => {
+    return text
+      .replace(/\\/g, "\\\\")
+      .replace(/;/g, "\\;")
+      .replace(/,/g, "\\,")
+      .replace(/\n/g, "\\n")
+      .replace(/\r/g, "");
+  };
+
+  const generateUID = (eventId: string) => {
+    return `${eventId}@xtablo.com`;
+  };
+
+  let icsContent = [
+    "BEGIN:VCALENDAR",
+    "VERSION:2.0",
+    "PRODID:-//XTablo//Planning Export//EN",
+    `X-WR-CALNAME:${escapeICSText(calendarName)}`,
+    "X-WR-TIMEZONE:Europe/Paris",
+    "CALSCALE:GREGORIAN",
+    "METHOD:PUBLISH",
+  ].join("\r\n");
+
+  events.forEach((event) => {
+    if (!event.start_date || !event.start_time || !event.title) return;
+
+    console.log("event", event);
+
+    const startDateTime = formatDate(event.start_date, event.start_time);
+    const endDateTime = event.end_time
+      ? formatDate(event.start_date, event.end_time)
+      : formatDate(event.start_date, event.start_time); // Default to start time if no end time
+
+    const eventLines = [
+      "",
+      "BEGIN:VEVENT",
+      `UID:${generateUID(event.event_id)}`,
+      `DTSTART:${startDateTime}`,
+      `DTEND:${endDateTime}`,
+      `SUMMARY:${escapeICSText(event.title)}`,
+      `DESCRIPTION:${escapeICSText(event.description || "")}`,
+      event.tablo_name ? `CATEGORIES:${escapeICSText(event.tablo_name)}` : "",
+      `CREATED:${new Date().toISOString().replace(/[-:]/g, "").split(".")[0]}Z`,
+      `LAST-MODIFIED:${
+        new Date().toISOString().replace(/[-:]/g, "").split(".")[0]
+      }Z`,
+      "STATUS:CONFIRMED",
+      "TRANSP:OPAQUE",
+      "END:VEVENT",
+    ].filter((line) => line !== ""); // Remove empty lines
+
+    icsContent += "\r\n" + eventLines.join("\r\n");
+  });
+
+  icsContent += "\r\n" + "END:VCALENDAR";
+  return icsContent;
+};
+
+export const downloadICSFile = (
+  icsContent: string,
+  filename: string = "planning.ics"
+) => {
+  console.log("icsContent", icsContent);
+  const blob = new Blob([icsContent], { type: "text/calendar;charset=utf-8" });
+  const link = document.createElement("a");
+  link.href = URL.createObjectURL(blob);
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(link.href);
+};