From 448c0610707cad1bcffa2a79a28bf8bb3ded9feb Mon Sep 17 00:00:00 2001
From: Daniel Supernault <danielsupernault@gmail.com>
Date: Sat, 11 Nov 2023 05:43:33 -0700
Subject: [PATCH] Update HomeFeedPipeline, add hashtag jobs

---
 .../HashtagInsertFanoutPipeline.php           | 86 +++++++++++++++++++
 .../HashtagRemoveFanoutPipeline.php           | 82 ++++++++++++++++++
 2 files changed, 168 insertions(+)
 create mode 100644 app/Jobs/HomeFeedPipeline/HashtagInsertFanoutPipeline.php
 create mode 100644 app/Jobs/HomeFeedPipeline/HashtagRemoveFanoutPipeline.php

diff --git a/app/Jobs/HomeFeedPipeline/HashtagInsertFanoutPipeline.php b/app/Jobs/HomeFeedPipeline/HashtagInsertFanoutPipeline.php
new file mode 100644
index 000000000..64adebadc
--- /dev/null
+++ b/app/Jobs/HomeFeedPipeline/HashtagInsertFanoutPipeline.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace App\Jobs\HomeFeedPipeline;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldBeUnique;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+use App\Hashtag;
+use App\StatusHashtag;
+use App\Services\HashtagFollowService;
+use App\Services\HomeTimelineService;
+use Illuminate\Queue\Middleware\WithoutOverlapping;
+use Illuminate\Contracts\Queue\ShouldBeUniqueUntilProcessing;
+
+class HashtagInsertFanoutPipeline implements ShouldQueue, ShouldBeUniqueUntilProcessing
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    protected $hashtag;
+
+    public $timeout = 900;
+    public $tries = 3;
+    public $maxExceptions = 1;
+    public $failOnTimeout = true;
+
+    /**
+     * Delete the job if its models no longer exist.
+     *
+     * @var bool
+     */
+    public $deleteWhenMissingModels = true;
+
+    /**
+     * The number of seconds after which the job's unique lock will be released.
+     *
+     * @var int
+     */
+    public $uniqueFor = 3600;
+
+    /**
+     * Get the unique ID for the job.
+     */
+    public function uniqueId(): string
+    {
+        return 'hfp:hashtag:fanout:insert:' . $this->hashtag->id;
+    }
+
+    /**
+     * Get the middleware the job should pass through.
+     *
+     * @return array<int, object>
+     */
+    public function middleware(): array
+    {
+        return [(new WithoutOverlapping("hfp:hashtag:fanout:insert:{$this->hashtag->id}"))->shared()->dontRelease()];
+    }
+
+    /**
+     * Create a new job instance.
+     */
+    public function __construct(StatusHashtag $hashtag)
+    {
+        $this->hashtag = $hashtag;
+    }
+
+    /**
+     * Execute the job.
+     */
+    public function handle(): void
+    {
+        $hashtag = $this->hashtag;
+
+        $ids = HashtagFollowService::getPidByHid($hashtag->hashtag_id);
+
+        if(!$ids || !count($ids)) {
+        	return;
+        }
+
+        foreach($ids as $id) {
+            HomeTimelineService::add($id, $hashtag->status_id);
+        }
+    }
+}
diff --git a/app/Jobs/HomeFeedPipeline/HashtagRemoveFanoutPipeline.php b/app/Jobs/HomeFeedPipeline/HashtagRemoveFanoutPipeline.php
new file mode 100644
index 000000000..92e3b8e42
--- /dev/null
+++ b/app/Jobs/HomeFeedPipeline/HashtagRemoveFanoutPipeline.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace App\Jobs\HomeFeedPipeline;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldBeUnique;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+use App\Hashtag;
+use App\StatusHashtag;
+use App\Services\HashtagFollowService;
+use App\Services\HomeTimelineService;
+use Illuminate\Queue\Middleware\WithoutOverlapping;
+use Illuminate\Contracts\Queue\ShouldBeUniqueUntilProcessing;
+
+class HashtagRemoveFanoutPipeline implements ShouldQueue, ShouldBeUniqueUntilProcessing
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    protected $sid;
+    protected $hid;
+
+    public $timeout = 900;
+    public $tries = 3;
+    public $maxExceptions = 1;
+    public $failOnTimeout = true;
+
+    /**
+     * The number of seconds after which the job's unique lock will be released.
+     *
+     * @var int
+     */
+    public $uniqueFor = 3600;
+
+    /**
+     * Get the unique ID for the job.
+     */
+    public function uniqueId(): string
+    {
+        return 'hfp:hashtag:fanout:remove:' . $this->hid . ':' . $this->sid;
+    }
+
+    /**
+     * Get the middleware the job should pass through.
+     *
+     * @return array<int, object>
+     */
+    public function middleware(): array
+    {
+        return [(new WithoutOverlapping("hfp:hashtag:fanout:remove:{$this->hid}:{$this->sid}"))->shared()->dontRelease()];
+    }
+
+    /**
+     * Create a new job instance.
+     */
+    public function __construct($sid, $hid)
+    {
+        $this->sid = $sid;
+        $this->hid = $hid;
+    }
+
+    /**
+     * Execute the job.
+     */
+    public function handle(): void
+    {
+        $sid = $this->sid;
+        $hid = $this->hid;
+
+        $ids = HashtagFollowService::getPidByHid($hid);
+
+        if(!$ids || !count($ids)) {
+            return;
+        }
+
+        foreach($ids as $id) {
+            HomeTimelineService::rem($id, $sid);
+        }
+    }
+}