From 60e074a70f2e98c4c82848484cf30d6865875a1e Mon Sep 17 00:00:00 2001
From: Jannik <jannik@picoscratch.de>
Date: Sat, 11 Oct 2025 16:00:12 +0200
Subject: [PATCH] feat: calendar connections

---
 messages/en.json                              |  23 ++-
 src/lib/components/lnv/Sidebar.svelte         |   2 +
 src/lib/components/lnv/main/Calendar.svelte   |  74 ++++++++++
 .../components/lnv/sidebar/MainSidebar.svelte |   3 +
 .../sidebar/settings/CalendarSidebar.svelte   | 132 ++++++++++++++++++
 .../sidebar/settings/SettingsSidebar.svelte   |  10 ++
 src/lib/services/CalDAV.ts                    |  41 ++++++
 7 files changed, 284 insertions(+), 1 deletion(-)
 create mode 100644 src/lib/components/lnv/main/Calendar.svelte
 create mode 100644 src/lib/components/lnv/sidebar/settings/CalendarSidebar.svelte
 create mode 100644 src/lib/services/CalDAV.ts

diff --git a/messages/en.json b/messages/en.json
index 525c5b0..dcb8249 100644
--- a/messages/en.json
+++ b/messages/en.json
@@ -78,7 +78,8 @@
 		"settings": {
 			"header": "Settings",
 			"general": "General",
-			"map": "Map"
+			"map": "Map",
+			"connections": "Connections"
 		},
 		"info": {
 			"dropped": "Dropped Pin",
@@ -148,6 +149,14 @@
 			"header": "Nearby Points of Interest",
 			"no-poi": "No points of interest found nearby.",
 			"loading": "Loading nearby points of interest..."
+		},
+		"calendar": {
+			"header": "Calendar",
+			"add": "Add Calendar",
+			"connect": "Connect Calendar",
+			"probing-server": "Probing server...",
+			"discovering-calendars": "Discovering calendars...",
+			"choose": "Choose calendars to add:"
 		}
 	},
 	"unsave": "Unsave",
@@ -164,5 +173,17 @@
 	"routing": {
 		"off-route": "You went off route",
 		"back-on-route": "You are back on route"
+	},
+	"open": "Open",
+	"submit": "Submit",
+	"done": "Done",
+	"delete": "Delete",
+	"calendar": {
+		"location": "Location",
+		"no-location": "No location",
+		"start": "Start",
+		"end": "End",
+		"no-start": "No start",
+		"no-end": "No end"
 	}
 }
diff --git a/src/lib/components/lnv/Sidebar.svelte b/src/lib/components/lnv/Sidebar.svelte
index 5ea4f6c..c5e5d86 100644
--- a/src/lib/components/lnv/Sidebar.svelte
+++ b/src/lib/components/lnv/Sidebar.svelte
@@ -44,6 +44,7 @@
 		"onboarding-vehicles": "onboarding/OnboardingVehiclesSidebar",
 		"nearby-poi": "NearbyPOISidebar",
 		licenses: "settings/LicensesSidebar",
+		calendar: "settings/CalendarSidebar",
 	};
 
 	const fullscreen: Record<string, boolean> = {
@@ -62,6 +63,7 @@
 		"onboarding-vehicles": true,
 		"nearby-poi": false,
 		licenses: true,
+		calendar: true,
 	};
 
 	let isDragging = false;
diff --git a/src/lib/components/lnv/main/Calendar.svelte b/src/lib/components/lnv/main/Calendar.svelte
new file mode 100644
index 0000000..c57de5b
--- /dev/null
+++ b/src/lib/components/lnv/main/Calendar.svelte
@@ -0,0 +1,74 @@
+<script lang="ts">
+	import Button from "$lib/components/ui/button/button.svelte";
+	import * as Card from "$lib/components/ui/card";
+	import { fetchEvents, type DAVCalendar, type DAVCredentials, type DAVEvent } from "$lib/services/CalDAV";
+	import { search } from "$lib/services/Search";
+	import { onMount } from "svelte";
+	import { map, pin } from "../map.svelte";
+	import { m } from "$lang/messages";
+
+	let events: DAVEvent[] = $state([]);
+
+	onMount(async () => {
+		const calendars = localStorage.getItem("calendars");
+		if(!calendars) return;
+		const parsedCalendars: (DAVCalendar & { credentials: DAVCredentials })[] = JSON.parse(calendars);
+		for(const calendar of parsedCalendars) {
+			const calendarEvents = await fetchEvents(calendar, calendar.credentials);
+			events.push(...calendarEvents);
+		}
+	})
+</script>
+
+<div id="events">
+	{#each events as event ((event.start + "" || "") + (event.end + "" || ""))}
+		<Card.Root>
+			<Card.Header>
+				<Card.Title>{event.summary}</Card.Title>
+				{#if event.description}
+					<Card.Description>{event.description}</Card.Description>
+				{/if}
+			</Card.Header>
+			<Card.Content>
+				<p>
+					<strong>{m["calendar.start"]()}:</strong> {event.start?.toLocaleString("de-DE") || m["calendar.no-start"]()}
+				</p>
+				<p>
+					<strong>{m["calendar.end"]()}:</strong> {event.end?.toLocaleString("de-DE") || m["calendar.no-end"]()}
+				</p>
+				<p>
+					{#if event.location}
+						<strong>{m["calendar.location"]()}:</strong> {event.location}
+					{:else}
+						<strong>{m["calendar.location"]()}:</strong> {m["calendar.no-location"]()}
+					{/if}
+				</p>
+			</Card.Content>
+			<Card.Footer>
+				<Button onclick={async () => {
+					if(!event.location) return;
+					const features = await search(event.location, 0, 0);
+					if(features.length == 0) {
+						return void alert("Can't find location");
+					}
+					const lat = features[0].geometry.coordinates[1];
+					const lng = features[0].geometry.coordinates[0];
+					pin.dropPin(lat, lng);
+					pin.showInfo();
+					map.value?.flyTo({
+						center: [lng, lat],
+						zoom: 19,
+					});
+				}}>{m.open()}</Button>
+			</Card.Footer>
+		</Card.Root>
+	{/each}
+</div>
+
+<style>
+	#events {
+		display: flex;
+		flex-direction: column;
+		gap: 0.5rem;
+	}
+</style>
diff --git a/src/lib/components/lnv/sidebar/MainSidebar.svelte b/src/lib/components/lnv/sidebar/MainSidebar.svelte
index 6211a91..8c240af 100644
--- a/src/lib/components/lnv/sidebar/MainSidebar.svelte
+++ b/src/lib/components/lnv/sidebar/MainSidebar.svelte
@@ -9,6 +9,7 @@
 	import * as Card from "$lib/components/ui/card";
 	import SavedRoutes from "../main/SavedRoutes.svelte";
 	import SavedLocations from "../main/SavedLocations.svelte";
+	import Calendar from "../main/Calendar.svelte";
 </script>
 
 <SavedLocations />
@@ -49,6 +50,8 @@
 	</Button>
 </div>
 
+<Calendar />
+
 {#if !window.__TAURI__}
 	<Card.Root style="margin-top: 1rem;">
 		<Card.Header>
diff --git a/src/lib/components/lnv/sidebar/settings/CalendarSidebar.svelte b/src/lib/components/lnv/sidebar/settings/CalendarSidebar.svelte
new file mode 100644
index 0000000..b58e112
--- /dev/null
+++ b/src/lib/components/lnv/sidebar/settings/CalendarSidebar.svelte
@@ -0,0 +1,132 @@
+<script lang="ts">
+	import { m } from "$lang/messages";
+	import { CalendarPlusIcon } from "@lucide/svelte";
+	import SidebarHeader from "../SidebarHeader.svelte";
+	import SettingsButton from "./SettingsButton.svelte";
+	import * as Drawer from "$lib/components/ui/drawer";
+	import { Button } from "$lib/components/ui/button";
+	import Input from "$lib/components/ui/input/input.svelte";
+	import { fetchCalendars, findScheme, type AuthScheme, type DAVCalendar, type DAVCredentials } from "$lib/services/CalDAV";
+	import { onMount } from "svelte";
+	
+	let calendars: (DAVCalendar & {credentials: DAVCredentials})[] = $state([]);
+
+	let calDavDrawerOpen = $state(false);
+	let calDavLoading = $state(false);
+	let calDavUrl = $state("");
+	let calDavUsername = $state("");
+	let calDavPassword = $state("");
+	let calDavCalendars: DAVCalendar[] = $state([]);
+	let calDavScheme: AuthScheme;
+
+	let calDavState = $state("");
+
+	async function fetchCalDav() {
+		calDavState = m["sidebar.calendar.probing-server"]();
+		calDavScheme = await findScheme(calDavUrl);
+		calDavState = m["sidebar.calendar.discovering-calendars"]();
+		calDavCalendars = await fetchCalendars(calDavUrl, { scheme: calDavScheme, username: calDavUsername, password: calDavPassword });
+		calDavState = "";
+	}
+
+	onMount(() => {
+		if(localStorage.getItem("calendars")) {
+			calendars = JSON.parse(localStorage.getItem("calendars")!);
+		}
+	})
+</script>
+
+<SidebarHeader>
+	{m["sidebar.calendar.header"]()}
+</SidebarHeader>
+
+<Drawer.Root bind:open={calDavDrawerOpen}>
+  <Drawer.Content>
+    <Drawer.Header>
+      <Drawer.Title>{m["sidebar.calendar.connect"]()}</Drawer.Title>
+    </Drawer.Header>
+		<div class="p-4 pt-0 flex flex-col gap-2">
+			{#if calDavCalendars}
+				<Input type="url" placeholder="https://my-caldav-server.com/..." disabled={calDavLoading} bind:value={calDavUrl} />
+				<Input type="text" placeholder="Username" disabled={calDavLoading} bind:value={calDavUsername} />
+				<Input type="password" placeholder="Password" disabled={calDavLoading} bind:value={calDavPassword} />
+				{#if calDavState}
+					<span>{calDavState}</span>
+				{/if}
+			{/if}
+			{#if calDavCalendars.length > 0}
+				<h3 class="font-medium pt-4">{m["sidebar.calendar.choose"]()}</h3>
+				<ul class="max-h-48 overflow-y-auto">
+					{#each calDavCalendars as calendar (calendar.url)}
+						<li>
+							<Button class="w-full" variant="secondary" onclick={() => {
+								if(localStorage.getItem("calendars")) {
+									const existing = JSON.parse(localStorage.getItem("calendars")!);
+									existing.push({
+										name: calendar.name,
+										url: calendar.url,
+										credentials: {
+											username: calDavUsername,
+											password: calDavPassword,
+											scheme: calDavScheme
+										}
+									});
+									localStorage.setItem("calendars", JSON.stringify(existing));
+								} else {
+									localStorage.setItem("calendars", JSON.stringify([{
+										name: calendar.name,
+										url: calendar.url,
+										credentials: {
+											username: calDavUsername,
+											password: calDavPassword,
+											scheme: calDavScheme
+										}
+									}]));
+								}
+								calendars.push({
+									name: calendar.name,
+									url: calendar.url,
+									credentials: {
+										username: calDavUsername,
+										password: calDavPassword,
+										scheme: calDavScheme
+									}
+								});
+							}}>
+								{calendar.name}
+							</Button>
+						</li>
+					{/each}
+				</ul>
+			{/if}
+		</div>
+    <Drawer.Footer>
+			{#if calDavCalendars.length === 0}
+				<Button onclick={async () => {
+					calDavLoading = true;
+					await fetchCalDav().catch((e) => {
+						calDavState = e;
+						calDavLoading = false;
+					})
+				}}>{m.submit()}</Button>
+			{/if}
+      <Drawer.Close>
+				{calDavCalendars.length === 0 ? m.done() : m.cancel()}
+			</Drawer.Close>
+    </Drawer.Footer>
+  </Drawer.Content>
+</Drawer.Root>
+
+{#each calendars as calendar (calendar.url)}
+	<div class="p-2 border rounded mb-2">
+		<h3 class="font-medium">{calendar.name}</h3>
+		<Button variant="destructive" size="sm" class="mt-2" onclick={() => {
+			calendars = calendars.filter(c => c.url !== calendar.url);
+			localStorage.setItem("calendars", JSON.stringify(calendars));
+		}}>{m.delete()}</Button>
+	</div>
+{/each}
+
+<SettingsButton text={m["sidebar.calendar.connect"]()} icon={CalendarPlusIcon} onclick={() => {
+	calDavDrawerOpen = true;
+}} />
\ No newline at end of file
diff --git a/src/lib/components/lnv/sidebar/settings/SettingsSidebar.svelte b/src/lib/components/lnv/sidebar/settings/SettingsSidebar.svelte
index 7833730..93a8b16 100644
--- a/src/lib/components/lnv/sidebar/settings/SettingsSidebar.svelte
+++ b/src/lib/components/lnv/sidebar/settings/SettingsSidebar.svelte
@@ -1,5 +1,6 @@
 <script>
 	import {
+		CalendarIcon,
 		CodeIcon,
 		InfoIcon,
 		LanguagesIcon,
@@ -25,6 +26,15 @@
 			view="language"
 		/>
 	</section>
+	
+	<section>
+		<h2>{m["sidebar.settings.connections"]()}</h2>
+		<SettingsButton
+			icon={CalendarIcon}
+			text={m["sidebar.calendar.header"]()}
+			view="calendar"
+		/>
+	</section>
 
 	<section>
 		<h2>{m["sidebar.settings.map"]()}</h2>
diff --git a/src/lib/services/CalDAV.ts b/src/lib/services/CalDAV.ts
new file mode 100644
index 0000000..6bde4b1
--- /dev/null
+++ b/src/lib/services/CalDAV.ts
@@ -0,0 +1,41 @@
+import { invoke } from "@tauri-apps/api/core";
+
+export type AuthScheme = "Digest" | "Basic";
+
+export interface DAVCredentials {
+	scheme: AuthScheme;
+	username: string;
+	password: string;
+}
+
+export interface DAVCalendar {
+	name: string;
+	url: string;
+}
+
+export interface DAVEvent {
+	summary: string;
+	start?: Date;
+	end?: Date;
+	description?: string;
+	location?: string;
+}
+
+export async function findScheme(url: string): Promise<AuthScheme> {
+  const scheme = await invoke("dav_find_scheme", { url });
+	return scheme as AuthScheme;
+}
+
+export async function fetchCalendars(url: string, credentials: DAVCredentials): Promise<DAVCalendar[]> {
+	const calendars = await invoke("dav_fetch_calendars", { url, credentials });
+	return calendars as DAVCalendar[];
+}
+
+export async function fetchEvents(calendar: DAVCalendar, credentials: DAVCredentials): Promise<DAVEvent[]> {
+	const events = await invoke("dav_fetch_events", { calendar, credentials });
+	return (events as DAVEvent[]).map(e => {
+		if (e.start) e.start = new Date(e.start);
+		if (e.end) e.end = new Date(e.end);
+		return e;
+	}) as DAVEvent[];
+}