Added database to keep track of videos already uploaded, so that only new videos send out notifications

.gitignore

@@ -6,3 +6,7 @@ config/config.yaml
 
 # PHP_Codesniffer cache
 .phpcs-cache
+
+# database file
+data/pigeon.db
+

composer.json

@@ -13,7 +13,9 @@
         "symfony/yaml": "^6.0",
         "hassankhan/config": "^3.0",
         "madcoda/php-youtube-api": "^1.2",
-        "team-reflex/discord-php": "^7.0"
+        "team-reflex/discord-php": "^7.0",
+        "robmorgan/phinx": "^0.12.10",
+        "illuminate/database": "^9.3"
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "^3.6",
@@ -22,5 +24,10 @@
     "scripts": {
       "phpcs": "phpcs --standard=./phpcs.xml",
       "phpmd": "phpmd src/ text phpmd.xml"
+    },
+    "autoload": {
+        "psr-4": {
+            "Pigeon\\": "src"
+        }
     }
 }

config/config.example.yaml

@@ -1,3 +1,7 @@
+pigeon:
+  check_interval: 10
+  db_path: "data/pigeon.db"
+
 youtube:
   api_key: "supersecretyoutubeapiky"
   channel_id: "mychannelid"

db/migrations/20220308141532_add_videos_table.php

@@ -0,0 +1,29 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class AddVideosTable extends AbstractMigration
+{
+    /**
+     * Change Method.
+     *
+     * Write your reversible migrations using this method.
+     *
+     * More information on writing migrations is available here:
+     * https://book.cakephp.org/phinx/0/en/migrations.html#the-change-method
+     *
+     * Remember to call "create()" or "update()" and NOT "save()" when working
+     * with the Table class.
+     */
+    public function change(): void
+    {
+        // create the table
+        $table = $this->table('videos');
+        $table->addColumn('video_id', 'string')
+              ->addColumn('published_at', 'datetime')
+              ->addTimestamps()
+              ->addIndex(['video_id'], ['unique' => true])
+              ->create();
+    }
+}

phinx.php

@@ -0,0 +1,28 @@
+<?php
+
+return
+[
+    'paths' => [
+        'migrations' => '%%PHINX_CONFIG_DIR%%/db/migrations',
+        'seeds' => '%%PHINX_CONFIG_DIR%%/db/seeds'
+    ],
+    'environments' => [
+        'default_migration_table' => 'phinxlog',
+        'default_environment' => 'development',
+        'production' => [
+            'adapter' => 'sqlite',
+            'name' => './data/pigeon',
+            'suffix' => 'db',
+        ],
+        'development' => [
+          'adapter' => 'sqlite',
+          'name' => './data/pigeon',
+          'suffix' => 'db',
+        ],
+        'testing' => [
+            'adapter' => 'sqlite',
+            'memory' => true,
+        ]
+    ],
+    'version_order' => 'creation'
+];

src/Models/Video.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Pigeon\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Video extends Model {
+  // define SQL attributes that can be modified
+  protected $fillable = ['video_id', 'published_at'];
+}

src/pigeon.php

@@ -5,12 +5,24 @@ include __DIR__ . '/../vendor/autoload.php';
 use Discord\Discord;
 use Discord\Parts\Channel\Message;
 use Discord\WebSockets\Intents;
+use Illuminate\Database\Capsule\Manager as Capsule;
 use Madcoda\Youtube\Youtube;
 use Noodlehaus\Config;
 
+use Pigeon\Models\Video;
+
 // load config file
 $config = new Config('config/config.yaml');
 
+// create Eloquent connection object
+$capsule = new Capsule;
+$capsule->addConnection([
+  'driver'   => 'sqlite',
+  'database' => $config->get('pigeon.db_path'),
+]);
+$capsule->setAsGlobal();
+$capsule->bootEloquent();
+
 // create YouTube API object
 $youtube = new Youtube(array('key' => $config->get('youtube.api_key')));
 // get channel
@@ -19,6 +31,21 @@ $yt_res = $youtube->getChannelById($config->get('youtube.channel_id'));
 $config->set('youtube.channel_name', $yt_res->snippet->title);
 $config->set('youtube.uploads_id', $yt_res->contentDetails->relatedPlaylists->uploads);
 
+// get the channel's uploads so we can seed the DB
+$uploads = $youtube->getPlaylistItemsByPlaylistId($config->get('youtube.uploads_id'));
+
+// create Video model objects with the above uploads
+foreach ($uploads as $u) {
+  $video = new Video;
+  $video->video_id = $u->contentDetails->videoId;
+  $video->published_at = date($u->contentDetails->videoPublishedAt);
+
+  // create the table entry if it doesn't already exist
+  Video::where('video_id', $video->video_id)->firstOr(function() use ($video) {
+    $video->save();
+  });
+}
+
 // create our event loop
 $loop = React\EventLoop\Factory::create();
 
@@ -32,21 +59,31 @@ $discord = new Discord([
 // periodic youtube uploads check
 $loop->addPeriodicTimer($config->get('pigeon.check_interval') * 60, function () use ($config, $discord, $youtube) {
   // get latest video from uploads playlist
-  $uploads = $youtube->getPlaylistItemsByPlaylistId($config->get('youtube.uploads_id'));
-  $latest_video_id = $uploads[0]->contentDetails->videoId;
-  $latest_url = "https://youtu.be/$latest_video_id";
+  $uploads = $youtube->getPlaylistItemsByPlaylistId($config->get('youtube.uploads_id'), 1);
+  $uploadDetails = $uploads[0]->contentDetails;
 
-  $message_text = str_replace('{link}', $latest_url, $config->get('discord.message_template'));
+  // search for the latest video in the DB
+  Video::where('video_id', $uploadDetails->videoId)->firstOr(function() use ($discord, $config, $uploadDetails) {
+    $latest_url = "https://youtu.be/$uploadDetails->videoId";
 
-  $discord->guilds->first()->channels->find(function ($channel) use ($config) {
-    return $channel->name === $config->get('discord.announcement_channel');
-  })->sendMessage($message_text)->done(function ($message) use ($discord) {
-    echo 'Message sent!', PHP_EOL;
+    $message_text = str_replace('{link}', $latest_url, $config->get('discord.message_template'));
+
+    $discord->guilds->first()->channels->find(function ($channel) use ($config) {
+      return $channel->name === $config->get('discord.announcement_channel');
+    })->sendMessage($message_text)->done(function ($message) use ($discord) {
+      echo 'Message sent!', PHP_EOL;
+    });
+
+    // add the video to the DB
+    $video = new Video;
+    $video->video_id = $uploadDetails->videoId;
+    $video->published_at = date($uploadDetails->videoPublishedAt);
+    $video->save();
   });
 });
 
 // run tasks when Discord is ready
-$discord->on('ready', function (Discord $discord) use ($conf, $latest_url) {
+$discord->on('ready', function (Discord $discord) {
   echo "Bot is ready!", PHP_EOL;
 });