<?php

namespace Kanboard\Plugin\QualKard\Controller;

use Kanboard\Controller\BaseController;
use Kanboard\Core\Controller\AccessForbiddenException;
use Kanboard\Plugin\QualKard\Helper\QualKardHelper;

/**
 * QualKard board actions, posted from the project Integrations page: set up the study board, reset
 * all cards, or disable. Project-manager gated (the restructure is destructive).
 */
class QualKardController extends BaseController
{
    /**
     * Turn this project into a study board: rename the first 7 columns to the standard names (create
     * or delete to reach exactly 7), move every card to Drafts, store the column roles, reset all
     * cards to unread + armed-inert, and enable. Once-per-conversion, explicit + confirmed.
     */
    public function setup()
    {
        $project = $this->authorize();
        $helper = new QualKardHelper($this->container);

        $names = array('Drafts', 'Study', 'Hairy', 'Hard', 'Medium', 'Easy', 'Done');
        $columns = $this->columnModel->getAll($project['id']); // position-ordered rows
        $ids = array();

        for ($i = 0; $i < 7; $i++) {
            if (isset($columns[$i])) {
                $this->columnModel->update($columns[$i]['id'], $names[$i]);
                $ids[$i] = (int) $columns[$i]['id'];
            } else {
                $ids[$i] = (int) $this->columnModel->create($project['id'], $names[$i]);
            }
        }

        // Move every card to Drafts BEFORE deleting extras -- remove() is a raw DELETE (tasks cascade).
        foreach ($this->taskFinderModel->getAll($project['id']) as $task) {
            $this->taskPositionModel->movePosition($project['id'], $task['id'], $ids[0], 1, $task['swimlane_id'], false);
        }

        for ($i = 7, $n = count($columns); $i < $n; $i++) {
            $this->columnModel->remove($columns[$i]['id']);
        }

        $roles = array('draft', 'study', 'hairy', 'hard', 'medium', 'easy', 'done');
        foreach ($roles as $k => $role) {
            $this->projectMetadataModel->save($project['id'], array('qualkard_col_'.$role => $ids[$k]));
        }

        $helper->resetAll($project['id']);
        $this->projectMetadataModel->save($project['id'], array('qualkard_enabled' => 1));

        $this->flash->success(t('QualKard study board is ready.'));
        $this->redirectToIntegrations($project);
    }

    /**
     * Reset every card on the board: unread, moved to Drafts, armed-inert. Keeps the columns.
     */
    public function reset()
    {
        $project = $this->authorize();
        (new QualKardHelper($this->container))->resetAll($project['id']);
        $this->flash->success(t('All cards reset.'));
        $this->redirectToIntegrations($project);
    }

    /**
     * Disable QualKard on this board (non-destructive: leaves columns and cards as they are).
     */
    public function disable()
    {
        $project = $this->authorize();
        $this->projectMetadataModel->save($project['id'], array('qualkard_enabled' => 0));
        $this->flash->success(t('QualKard disabled on this board.'));
        $this->redirectToIntegrations($project);
    }

    // Project-manager gate + CSRF, shared by every action.
    private function authorize()
    {
        $project = $this->getProject();

        if (! $this->helper->user->hasProjectAccess('ProjectEditController', 'edit', $project['id'])) {
            throw new AccessForbiddenException();
        }

        $this->checkCSRFForm();

        return $project;
    }

    private function redirectToIntegrations(array $project)
    {
        $this->response->redirect($this->helper->url->to('ProjectViewController', 'integrations', array('project_id' => $project['id'])));
    }
}