From 639ab0ae17e239a7c1919e154fd83de7cd3d4bf4 Mon Sep 17 00:00:00 2001
From: Ed Asriyan <github@asriyan.me>
Date: Tue, 20 Feb 2024 00:47:31 +0400
Subject: [PATCH] Support local files

---
 src/local-room.ts                |  3 +-
 src/remote-room.ts               |  2 ++
 src/routes/+page.svelte          | 42 +++++++++++++++++++++++---
 src/routes/video-selector.svelte | 31 +++++++++++++++++++
 src/routes/video-view.svelte     | 52 +++++++++++++++++++++++---------
 5 files changed, 110 insertions(+), 20 deletions(-)
 create mode 100644 src/routes/video-selector.svelte

diff --git a/src/local-room.ts b/src/local-room.ts
index 932100f..eaba0ef 100644
--- a/src/local-room.ts
+++ b/src/local-room.ts
@@ -19,7 +19,7 @@ export class LocalRoom implements Writable<RemoteRoomRaw> {
                 if (!newTime || Math.abs(newRemoteRoom.time - newTime) > maximumDelta) {
                     newTime = newRemoteRoom.time;
                 }
-                set({ url: newRemoteRoom.url, paused: newRemoteRoom.paused, time: newTime });
+                set({ ...newRemoteRoom, time: newTime });
             });
         });
     }
@@ -34,6 +34,7 @@ export class LocalRoom implements Writable<RemoteRoomRaw> {
         const remoteValue = getStore(this.remoteRoom);
 
         if (
+            remoteValue.isLocalMode !== newValue.isLocalMode ||
             remoteValue.paused !== newValue.paused ||
             remoteValue.url !== newValue.url ||
             Math.abs(getStore(this.remoteRoom).time - val.time) > syncInterval
diff --git a/src/remote-room.ts b/src/remote-room.ts
index 0095ce6..e5f5935 100644
--- a/src/remote-room.ts
+++ b/src/remote-room.ts
@@ -6,6 +6,7 @@ export interface RemoteRoomRaw {
     url: string;
     time: number;
     paused: boolean;
+    isLocalMode: boolean;
 }
 
 export class RemoteRoom implements Writable<RemoteRoomRaw> {
@@ -31,6 +32,7 @@ export class RemoteRoom implements Writable<RemoteRoomRaw> {
                 url: '',
                 paused: true,
                 time: 0,
+                isLocalMode: false,
             };
         }
         this.store.set(initRoom);
diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 000ed5f..881a61b 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -5,6 +5,7 @@
     import { v4 as uuidv4 } from 'uuid';
     import VideoView from './video-view.svelte';
     import Loader from './loader.svelte';
+    import VideoSelector from './video-selector.svelte';
     import { RemoteRoom } from '../remote-room';
     import { LocalRoom } from '../local-room';
 
@@ -21,6 +22,9 @@
     let isLoading = true;
     $: remoteRoom.load().finally(() => isLoading = false);
     $: localRoom = new LocalRoom(remoteRoom);
+    let blobUrl: string;
+
+    $: playUrl = $localRoom?.isLocalMode ? blobUrl : $localRoom?.url;
 
     const copyToClipboard = function (text: string) {
         const input = document.createElement('input');
@@ -29,13 +33,16 @@
         input.select();
         document.execCommand('copy');
         document.body.removeChild(input);
-    }
+    };
 
     const copyUrl = function () {
         copyToClipboard($page.url.href);
     };
 
     $: isUrlValid = (() => {
+        if ($localRoom?.isLocalMode) {
+            return blobUrl;
+        }
         try {
             const url = new URL($localRoom.url);
             return url.protocol === "http:" || url.protocol === "https:";
@@ -61,6 +68,21 @@
             {:else}
                 <div class="uk-container uk-container-small">
                     <h3>1. Select a video</h3>
+                    <ul class="uk-subnav uk-subnav-pill " uk-switcher>
+                        <li class:uk-active={!$localRoom.isLocalMode}>
+                            <a on:click={() => $localRoom.isLocalMode = false}>Online link</a>
+                        </li>
+                        <li class:uk-active={$localRoom.isLocalMode}>
+                            <a on:click={() => $localRoom.isLocalMode = true}>Local file</a>
+                        </li>
+                    </ul>
+
+                    {#if $localRoom.isLocalMode}
+                    <div class="uk-margin">
+                        You all downloaded a movie already!? Well done! Everyone should select the same video file, please.
+                    </div>
+                        <VideoSelector bind:videoUri={blobUrl}/>
+                    {:else}
                     <div class="uk-margin">
                         Insert a link to YouTube, Vimeo, HLS playlist, video or audio file. The input is synchronized with everyone in the room.
                     </div>
@@ -69,7 +91,9 @@
                         class="uk-input"
                         class:uk-form-danger={$localRoom.url && !isUrlValid}
                         placeholder="Video URL"
+                        disabled={$localRoom.isLocalMode}
                     />
+                    {/if}
                 </div>
             {/if}
         </div>
@@ -91,9 +115,15 @@
                 <div class="uk-margin">
                     Playback, time, and video scrolling are synchronized with everyone who has the page open.
                 </div>
-                {#if isUrlValid}
-                    <VideoView bind:paused={$localRoom.paused} bind:time={$localRoom.time} bind:url={$localRoom.url}/>
-                {/if}
+                <div class="uk-text-center">
+                    {#if isUrlValid}
+                        <VideoView bind:paused={$localRoom.paused} bind:time={$localRoom.time} url={playUrl}/>
+                    {:else}
+                        <div class="stub uk-text-small">
+                            Video player will appear here when you insert a link or select a video
+                        </div>
+                    {/if}
+                </div>
             </div>
         </div>
     {/if}
@@ -106,4 +136,8 @@
     .window-height {
         min-height: 100vh;
     }
+
+    .stub {
+        margin-top: 15rem;
+    }
 </style>
diff --git a/src/routes/video-selector.svelte b/src/routes/video-selector.svelte
new file mode 100644
index 0000000..1f80da0
--- /dev/null
+++ b/src/routes/video-selector.svelte
@@ -0,0 +1,31 @@
+<script lang="ts">
+    export let videoUri: string;
+
+    let fileName: string;
+
+    let input: HTMLInputElement;
+
+    const loadSource = async function (file: any): Promise<void> {
+        console.log(file);
+        videoUri = window.URL.createObjectURL(file) as string;
+        fileName = file.name;
+    };
+</script>
+
+<input bind:this={input} type="file" on:change={e => loadSource(e.target.files[0])}/>
+<button on:click={() => input.click()} class="uk-button uk-button-default">
+    {#if fileName}
+        Click to select another video
+    {:else}
+        Click to select video file
+    {/if}
+</button>
+{#if fileName}
+    <span class="uk-margin-left">{fileName}</span>
+{/if}
+
+<style lang="scss">
+    input {
+        display: none;
+    }
+</style>
diff --git a/src/routes/video-view.svelte b/src/routes/video-view.svelte
index 2e856c6..42e7671 100644
--- a/src/routes/video-view.svelte
+++ b/src/routes/video-view.svelte
@@ -22,6 +22,12 @@
     $: isMounted && (player.currentTime = time);
     $: isMounted && (player.paused = paused);
 
+    $: isBlob = url.startsWith('blob:');
+
+    const onLoaded = function (this: HTMLVideoElement) {
+        this.currentTime = time;
+    };
+
     onMount(() => {
         player.subscribe(options => {
             paused = options.paused;
@@ -33,18 +39,34 @@
     });
 </script>
 
-<media-player
-    bind:this={player}
-    src={url}
-    autoplay
-    playsInline
-    preload="metadata"
-    crossOrigin
-    muted
->
-    <media-provider>
-    </media-provider>
-    <!-- Layouts -->
-    <media-audio-layout />
-    <media-video-layout />
-</media-player>
+{#if isBlob}
+    <video
+        src={url}
+        autoplay
+        playsInline
+        preload="metadata"
+        crossOrigin="anonymous"
+        bind:paused={paused}
+        bind:currentTime={time}
+        on:loadeddata={onLoaded}
+        muted
+        controls
+    >
+    </video>
+{/if}
+    <media-player
+        class:uk-invisible={isBlob}
+        bind:this={player}
+        src={url}
+        autoplay
+        playsInline
+        preload="metadata"
+        crossOrigin
+        muted
+    >
+        <media-provider>
+        </media-provider>
+        <!-- Layouts -->
+        <media-audio-layout />
+        <media-video-layout />
+    </media-player>