From 6751eb659192e20dca10855fd5bd9226663bea34 Mon Sep 17 00:00:00 2001
From: ErickSkrauch <erickskrauch@yandex.ru>
Date: Sat, 7 Jul 2018 15:01:18 +0300
Subject: [PATCH] Implemented webhooks database structure and console command
 register webhooks

---
 common/models/WebHook.php                     | 42 +++++++++++
 common/models/WebHookEvent.php                | 27 +++++++
 console/controllers/WebhooksController.php    | 57 +++++++++++++++
 console/db/Migration.php                      | 24 ++-----
 .../migrations/m180706_230451_webhooks.php    | 28 ++++++++
 console/models/.gitkeep                       |  1 -
 console/models/WebHookForm.php                | 70 +++++++++++++++++++
 7 files changed, 228 insertions(+), 21 deletions(-)
 create mode 100644 common/models/WebHook.php
 create mode 100644 common/models/WebHookEvent.php
 create mode 100644 console/controllers/WebhooksController.php
 create mode 100644 console/migrations/m180706_230451_webhooks.php
 delete mode 100644 console/models/.gitkeep
 create mode 100644 console/models/WebHookForm.php

diff --git a/common/models/WebHook.php b/common/models/WebHook.php
new file mode 100644
index 0000000..586fa9e
--- /dev/null
+++ b/common/models/WebHook.php
@@ -0,0 +1,42 @@
+<?php
+declare(strict_types=1);
+
+namespace common\models;
+
+use yii\behaviors\TimestampBehavior;
+use yii\db\ActiveQueryInterface;
+use yii\db\ActiveRecord;
+
+/**
+ * Fields:
+ * @property int         $id
+ * @property string      $url
+ * @property string|null $secret
+ * @property int         $created_at
+ *
+ * Relations:
+ * @property WebHookEvent[] $events
+ *
+ * Behaviors:
+ * @mixin TimestampBehavior
+ */
+class WebHook extends ActiveRecord {
+
+    public static function tableName(): string {
+        return '{{%webhooks}}';
+    }
+
+    public function behaviors(): array {
+        return [
+            [
+                'class' => TimestampBehavior::class,
+                'updatedAtAttribute' => false,
+            ],
+        ];
+    }
+
+    public function getEvents(): ActiveQueryInterface {
+        return $this->hasMany(WebHookEvent::class, ['webhook_id' => 'id']);
+    }
+
+}
diff --git a/common/models/WebHookEvent.php b/common/models/WebHookEvent.php
new file mode 100644
index 0000000..280d4ab
--- /dev/null
+++ b/common/models/WebHookEvent.php
@@ -0,0 +1,27 @@
+<?php
+declare(strict_types=1);
+
+namespace common\models;
+
+use yii\db\ActiveQueryInterface;
+use yii\db\ActiveRecord;
+
+/**
+ * Fields:
+ * @property int    $webhook_id
+ * @property string $event_type
+ *
+ * Relations:
+ * @property WebHook $webhook
+ */
+class WebHookEvent extends ActiveRecord {
+
+    public static function tableName(): string {
+        return '{{%webhooks_events}}';
+    }
+
+    public function getWebhook(): ActiveQueryInterface {
+        return $this->hasOne(WebHook::class, ['id' => 'webhook_id']);
+    }
+
+}
diff --git a/console/controllers/WebhooksController.php b/console/controllers/WebhooksController.php
new file mode 100644
index 0000000..6f77acc
--- /dev/null
+++ b/console/controllers/WebhooksController.php
@@ -0,0 +1,57 @@
+<?php
+declare(strict_types=1);
+
+namespace console\controllers;
+
+use common\models\WebHook;
+use console\models\WebHookForm;
+use yii\console\Controller;
+use yii\console\ExitCode;
+use yii\helpers\Console;
+
+class WebhooksController extends Controller {
+
+    public function actionCreate(): int {
+        $form = new WebHookForm(new WebHook());
+
+        $url = Console::prompt('Enter webhook url:', [
+            'required' => true,
+            'validator' => function(string $input, ?string &$error) use ($form): bool {
+                $form->url = $input;
+                if (!$form->validate('url')) {
+                    $error = $form->getFirstError('url');
+                    return false;
+                }
+
+                return true;
+            },
+        ]);
+        $secret = Console::prompt('Enter webhook secret (empty to no secret):');
+
+        $options = $form::getEvents();
+        $options[''] = 'Finish input'; // It's needed to allow finish input cycle
+        $events = [];
+
+        do {
+            $availableOptions = array_diff($options, $events);
+            $eventIndex = Console::select('Choose wanted events (submit no input to finish):', $availableOptions);
+            if ($eventIndex !== '') {
+                $events[] = $options[$eventIndex];
+            }
+        } while($eventIndex !== '' || empty($events)); // User must choose at least one event
+
+        $form->url = $url;
+        $form->events = $events;
+        if ($secret !== '') {
+            $form->secret = $secret;
+        }
+
+        if (!$form->save()) {
+            Console::error('Unable to create new webhook. Check errors list below' . PHP_EOL . Console::errorSummary($form));
+            return ExitCode::UNSPECIFIED_ERROR;
+        }
+
+        return ExitCode::OK;
+    }
+
+}
diff --git a/console/db/Migration.php b/console/db/Migration.php
index e05b6aa..3ec8284 100644
--- a/console/db/Migration.php
+++ b/console/db/Migration.php
@@ -25,28 +25,12 @@ class Migration extends YiiMigration {
         parent::createTable($table, $columns, $options);
     }
 
-    protected function primary(...$columns) {
-        switch (count($columns)) {
-            case 0:
-                $key = '';
-                break;
-            case 1:
-                $key = $columns[0];
-                break;
-            default:
-                $key = $this->buildKey($columns);
+    protected function primary(string ...$columns): string {
+        foreach ($columns as &$column) {
+            $column = $this->db->quoteColumnName($column);
         }
 
-        return " PRIMARY KEY ($key) ";
-    }
-
-    private function buildKey(array $columns) {
-        $key = '';
-        foreach ($columns as $i => $column) {
-            $key .= $i === count($columns) ? $column : "$column,";
-        }
-
-        return $key;
+        return ' PRIMARY KEY (' . implode(', ', $columns) . ') ';
     }
 
 }
diff --git a/console/migrations/m180706_230451_webhooks.php b/console/migrations/m180706_230451_webhooks.php
new file mode 100644
index 0000000..df6a620
--- /dev/null
+++ b/console/migrations/m180706_230451_webhooks.php
@@ -0,0 +1,28 @@
+<?php
+
+use console\db\Migration;
+
+class m180706_230451_webhooks extends Migration {
+
+    public function safeUp() {
+        $this->createTable('{{%webhooks}}', [
+            'id' => $this->primaryKey(11)->unsigned(),
+            'url' => $this->string()->notNull(),
+            'secret' => $this->string(),
+            'created_at' => $this->integer(11)->unsigned()->notNull(),
+        ]);
+
+        $this->createTable('{{%webhooks_events}}', [
+            'webhook_id' => $this->db->getTableSchema('{{%webhooks}}')->getColumn('id')->dbType . ' NOT NULL',
+            'event_type' => $this->string()->notNull(),
+            $this->primary('webhook_id', 'event_type'),
+        ]);
+        $this->addForeignKey('FK_webhook_event_to_webhook', '{{%webhooks_events}}', 'webhook_id', 'webhooks', 'id', 'CASCADE', 'CASCADE');
+    }
+
+    public function safeDown() {
+        $this->dropTable('{{%webhooks_events}}');
+        $this->dropTable('{{%webhooks}}');
+    }
+
+}
diff --git a/console/models/.gitkeep b/console/models/.gitkeep
deleted file mode 100644
index 72e8ffc..0000000
--- a/console/models/.gitkeep
+++ /dev/null
@@ -1 +0,0 @@
-*
diff --git a/console/models/WebHookForm.php b/console/models/WebHookForm.php
new file mode 100644
index 0000000..4f9cfcd
--- /dev/null
+++ b/console/models/WebHookForm.php
@@ -0,0 +1,70 @@
+<?php
+declare(strict_types=1);
+
+namespace console\models;
+
+use api\exceptions\ThisShouldNotHappenException;
+use common\models\WebHook;
+use common\models\WebHookEvent;
+use Yii;
+use yii\base\Model;
+
+class WebHookForm extends Model {
+
+    public $url;
+
+    public $secret;
+
+    public $events = [];
+
+    private $webHook;
+
+    public function __construct(WebHook $webHook, array $config = []) {
+        parent::__construct($config);
+        $this->webHook = $webHook;
+    }
+
+    public function rules(): array {
+        return [
+            [['url'], 'required'],
+            [['url'], 'url'],
+            [['secret'], 'string'],
+            [['events'], 'in', 'range' => static::getEvents(), 'allowArray' => true],
+        ];
+    }
+
+    public function save(): bool {
+        if (!$this->validate()) {
+            return false;
+        }
+
+        $transaction = Yii::$app->db->beginTransaction();
+
+        $webHook = $this->webHook;
+        $webHook->url = $this->url;
+        $webHook->secret = $this->secret;
+        if (!$webHook->save()) {
+            throw new ThisShouldNotHappenException('Cannot save webhook.');
+        }
+
+        foreach ($this->events as $event) {
+            $eventModel = new WebHookEvent();
+            $eventModel->webhook_id = $webHook->id;
+            $eventModel->event_type = $event;
+            if (!$eventModel->save()) {
+                throw new ThisShouldNotHappenException('Cannot save webhook event.');
+            }
+        }
+
+        $transaction->commit();
+
+        return true;
+    }
+
+    public static function getEvents(): array {
+        return [
+            'account.edit',
+        ];
+    }
+
+}