Use BoardFormatter to generate the board

app/Formatter/BaseFormatter.php

@@ -3,8 +3,8 @@
 namespace Kanboard\Formatter;
 
 use Kanboard\Core\Base;
-use Kanboard\Core\Filter\FormatterInterface;
 use PicoDb\Table;
+use Pimple\Container;
 
 /**
  * Class BaseFormatter
@@ -22,12 +22,25 @@ abstract class BaseFormatter extends Base
      */
     protected $query;
 
+    /**
+     * Get object instance
+     *
+     * @static
+     * @access public
+     * @param  Container $container
+     * @return static
+     */
+    public static function getInstance(Container $container)
+    {
+        return new static($container);
+    }
+
     /**
      * Set query
      *
      * @access public
      * @param  Table $query
-     * @return FormatterInterface
+     * @return $this
      */
     public function withQuery(Table $query)
     {

app/Formatter/BoardColumnFormatter.php

@@ -0,0 +1,79 @@
+<?php
+
+namespace Kanboard\Formatter;
+
+use Kanboard\Core\Filter\FormatterInterface;
+
+/**
+ * Board Column Formatter
+ *
+ * @package formatter
+ * @author  Frederic Guillot
+ */
+class BoardColumnFormatter extends BaseFormatter implements FormatterInterface
+{
+    protected $swimlaneId = 0;
+    protected $columns = array();
+    protected $tasks = array();
+
+    /**
+     * Set swimlaneId
+     *
+     * @access public
+     * @param  integer $swimlaneId
+     * @return $this
+     */
+    public function withSwimlaneId($swimlaneId)
+    {
+        $this->swimlaneId = $swimlaneId;
+        return $this;
+    }
+
+    /**
+     * Set columns
+     *
+     * @access public
+     * @param  array $columns
+     * @return $this
+     */
+    public function withColumns(array $columns)
+    {
+        $this->columns = $columns;
+        return $this;
+    }
+
+    /**
+     * Set tasks
+     *
+     * @access public
+     * @param  array $tasks
+     * @return $this
+     */
+    public function withTasks(array $tasks)
+    {
+        $this->tasks = $tasks;
+        return $this;
+    }
+
+    /**
+     * Apply formatter
+     *
+     * @access public
+     * @return array
+     */
+    public function format()
+    {
+        foreach ($this->columns as &$column) {
+            $column['tasks'] = BoardTaskFormatter::getInstance($this->container)
+                ->withTasks($this->tasks)
+                ->withSwimlaneId($this->swimlaneId)
+                ->withColumnId($column['id'])
+                ->format();
+
+            $column['nb_tasks'] = count($column['tasks']);
+            $column['score'] = (int) array_column_sum($column['tasks'], 'score');
+        }
+
+        return $this->columns;
+    }
+}

app/Formatter/BoardFormatter.php

@@ -28,7 +28,7 @@ class BoardFormatter extends BaseFormatter implements FormatterInterface
      * @param  integer $projectId
      * @return $this
      */
-    public function setProjectId($projectId)
+    public function withProjectId($projectId)
     {
         $this->projectId = $projectId;
         return $this;
@@ -42,15 +42,22 @@ class BoardFormatter extends BaseFormatter implements FormatterInterface
      */
     public function format()
     {
+        $swimlanes = $this->swimlaneModel->getSwimlanes($this->projectId);
+        $columns = $this->columnModel->getAll($this->projectId);
+
         $tasks = $this->query
             ->eq(TaskModel::TABLE.'.project_id', $this->projectId)
             ->asc(TaskModel::TABLE.'.position')
             ->findAll();
 
-        return $this->boardModel->getBoard($this->projectId, function ($project_id, $column_id, $swimlane_id) use ($tasks) {
-            return array_filter($tasks, function (array $task) use ($column_id, $swimlane_id) {
-                return $task['column_id'] == $column_id && $task['swimlane_id'] == $swimlane_id;
-            });
-        });
+        if (empty($swimlanes) || empty($columns)) {
+            return array();
+        }
+
+        return BoardSwimlaneFormatter::getInstance($this->container)
+            ->withSwimlanes($swimlanes)
+            ->withColumns($columns)
+            ->withTasks($tasks)
+            ->format();
     }
 }

app/Formatter/BoardSwimlaneFormatter.php

@@ -0,0 +1,105 @@
+<?php
+
+namespace Kanboard\Formatter;
+
+use Kanboard\Core\Filter\FormatterInterface;
+
+/**
+ * Board Swimlane Formatter
+ *
+ * @package formatter
+ * @author  Frederic Guillot
+ */
+class BoardSwimlaneFormatter extends BaseFormatter implements FormatterInterface
+{
+    protected $swimlanes = array();
+    protected $columns = array();
+    protected $tasks = array();
+
+    /**
+     * Set swimlanes
+     *
+     * @access public
+     * @param  array $swimlanes
+     * @return $this
+     */
+    public function withSwimlanes($swimlanes)
+    {
+        $this->swimlanes = $swimlanes;
+        return $this;
+    }
+
+    /**
+     * Set columns
+     *
+     * @access public
+     * @param  array $columns
+     * @return $this
+     */
+    public function withColumns($columns)
+    {
+        $this->columns = $columns;
+        return $this;
+    }
+
+    /**
+     * Set tasks
+     *
+     * @access public
+     * @param  array $tasks
+     * @return $this
+     */
+    public function withTasks(array $tasks)
+    {
+        $this->tasks = $tasks;
+        return $this;
+    }
+
+    /**
+     * Apply formatter
+     *
+     * @access public
+     * @return array
+     */
+    public function format()
+    {
+        $nb_swimlanes = count($this->swimlanes);
+        $nb_columns = count($this->columns);
+
+        foreach ($this->swimlanes as &$swimlane) {
+            $swimlane['columns'] = BoardColumnFormatter::getInstance($this->container)
+                ->withSwimlaneId($swimlane['id'])
+                ->withColumns($this->columns)
+                ->withTasks($this->tasks)
+                ->format();
+
+            $swimlane['nb_swimlanes'] = $nb_swimlanes;
+            $swimlane['nb_columns'] = $nb_columns;
+            $swimlane['nb_tasks'] = array_column_sum($swimlane['columns'], 'nb_tasks');
+            $swimlane['score'] = array_column_sum($swimlane['columns'], 'score');
+
+            $this->calculateStatsByColumnAcrossSwimlanes($swimlane['columns']);
+        }
+
+        return $this->swimlanes;
+    }
+
+    /**
+     * Calculate stats for each column acrosss all swimlanes
+     *
+     * @access protected
+     * @param  array $columns
+     */
+    protected function calculateStatsByColumnAcrossSwimlanes(array $columns)
+    {
+        foreach ($columns as $columnIndex => $column) {
+            if (! isset($this->swimlanes[0]['columns'][$columnIndex]['column_nb_tasks'])) {
+                $this->swimlanes[0]['columns'][$columnIndex]['column_nb_tasks'] = 0;
+                $this->swimlanes[0]['columns'][$columnIndex]['column_score'] = 0;
+            }
+
+            $this->swimlanes[0]['columns'][$columnIndex]['column_nb_tasks'] += $column['nb_tasks'];
+            $this->swimlanes[0]['columns'][$columnIndex]['column_score'] += $column['score'];
+        }
+    }
+}

app/Formatter/BoardTaskFormatter.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace Kanboard\Formatter;
+
+use Kanboard\Core\Filter\FormatterInterface;
+
+/**
+ * Board Task Formatter
+ *
+ * @package formatter
+ * @author  Frederic Guillot
+ */
+class BoardTaskFormatter extends BaseFormatter implements FormatterInterface
+{
+    protected $tasks = array();
+    protected $columnId = 0;
+    protected $swimlaneId = 0;
+
+    /**
+     * Set tasks
+     *
+     * @access public
+     * @param  array $tasks
+     * @return $this
+     */
+    public function withTasks(array $tasks)
+    {
+        $this->tasks = $tasks;
+        return $this;
+    }
+
+    /**
+     * Set columnId
+     *
+     * @access public
+     * @param  integer $columnId
+     * @return $this
+     */
+    public function withColumnId($columnId)
+    {
+        $this->columnId = $columnId;
+        return $this;
+    }
+
+    /**
+     * Set swimlaneId
+     *
+     * @access public
+     * @param  integer $swimlaneId
+     * @return $this
+     */
+    public function withSwimlaneId($swimlaneId)
+    {
+        $this->swimlaneId = $swimlaneId;
+        return $this;
+    }
+
+    /**
+     * Apply formatter
+     *
+     * @access public
+     * @return array
+     */
+    public function format()
+    {
+        return array_values(array_filter($this->tasks, array($this, 'filterTasks')));
+    }
+
+    /**
+     * Keep only tasks of the given column and swimlane
+     *
+     * @access public
+     * @param  array $task
+     * @return bool
+     */
+    public function filterTasks(array $task)
+    {
+        return $task['column_id'] == $this->columnId && $task['swimlane_id'] == $this->swimlaneId;
+    }
+}