Refactoring of internal task events

app/EventBuilder/TaskEventBuilder.php

@@ -0,0 +1,123 @@
+<?php
+
+namespace Kanboard\EventBuilder;
+
+use Kanboard\Event\TaskEvent;
+
+/**
+ * Class TaskEventBuilder
+ *
+ * @package Kanboard\EventBuilder
+ * @author  Frederic Guillot
+ */
+class TaskEventBuilder extends BaseEventBuilder
+{
+    /**
+     * TaskId
+     *
+     * @access protected
+     * @var int
+     */
+    protected $taskId = 0;
+
+    /**
+     * Task
+     *
+     * @access protected
+     * @var array
+     */
+    protected $task = array();
+
+    /**
+     * Extra values
+     *
+     * @access protected
+     * @var array
+     */
+    protected $values = array();
+
+    /**
+     * Changed values
+     *
+     * @access protected
+     * @var array
+     */
+    protected $changes = array();
+
+    /**
+     * Set TaskId
+     *
+     * @param  int $taskId
+     * @return $this
+     */
+    public function withTaskId($taskId)
+    {
+        $this->taskId = $taskId;
+        return $this;
+    }
+
+    /**
+     * Set task
+     *
+     * @param  array $task
+     * @return $this
+     */
+    public function withTask(array $task)
+    {
+        $this->task = $task;
+        return $this;
+    }
+
+    /**
+     * Set values
+     *
+     * @param  array $values
+     * @return $this
+     */
+    public function withValues(array $values)
+    {
+        $this->values = $values;
+        return $this;
+    }
+
+    /**
+     * Set changes
+     *
+     * @param  array $changes
+     * @return $this
+     */
+    public function withChanges(array $changes)
+    {
+        $this->changes = $changes;
+        return $this;
+    }
+
+    /**
+     * Build event data
+     *
+     * @access public
+     * @return TaskEvent|null
+     */
+    public function build()
+    {
+        $eventData = array();
+        $eventData['task_id'] = $this->taskId;
+        $eventData['task'] = $this->taskFinderModel->getDetails($this->taskId);
+
+        if (empty($eventData['task'])) {
+            $this->logger->debug(__METHOD__.': Task not found');
+            return null;
+        }
+
+        if (! empty($this->changes)) {
+            if (empty($this->task)) {
+                $this->task = $eventData['task'];
+            }
+
+            $eventData['changes'] = array_diff_assoc($this->changes, $this->task);
+            unset($eventData['changes']['date_modification']);
+        }
+
+        return new TaskEvent(array_merge($eventData, $this->values));
+    }
+}