<?php
namespace Concrete\Controller\SinglePage\Dashboard\System\Permissions;

use Concrete\Core\Page\Controller\DashboardPageController;
use Workflow;
use Loader;
use Exception;
use Concrete\Core\Workflow\Type as WorkflowType;

class Workflows extends DashboardPageController
{
    public $helpers = array('form');

    public function delete($wfID = null, $token = null)
    {
        try {
            $wf = Workflow::getByID($wfID);

            if (!($wf instanceof Workflow)) {
                throw new Exception(t('Invalid workflow ID.'));
            }

            $valt = Loader::helper('validation/token');
            if (!$valt->validate('delete_workflow', $token)) {
                throw new Exception($valt->getErrorMessage());
            }

            $wf->delete();

            $this->redirect("/dashboard/system/permissions/workflows", 'workflow_deleted');
        } catch (Exception $e) {
            $this->error->add($e);
        }
        $this->view();
    }

    public function save_workflow_details()
    {
        if (!Loader::helper('validation/token')->validate('save_workflow_details')) {
            $this->error->add(Loader::helper('validation/token')->getErrorMessage());
        }
        $wfName = trim($this->post('wfName'));
        if (!$wfName) {
            $this->error->add(t('You must give the workflow a name.'));
        } elseif (preg_match('/[<>{};?"`]/i', $wfName)) {
            $this->error->add(t('Invalid characters in workflow name.'));
        }
        if (!$this->error->has()) {
            $wf = Workflow::getByID($this->post('wfID'));
            $wf->updateName($wfName);
            $wf->updateDetails($this->post());
            $this->redirect('/dashboard/system/permissions/workflows', 'view_detail', $this->post('wfID'), 'workflow_updated');
        } else {
            $this->view_detail($this->post('wfID'));
        }
    }

    public function view()
    {
        $workflows = Workflow::getList();
        $this->set('workflows', $workflows);
    }

    public function add()
    {
        $types = array();
        $list = WorkflowType::getList();
        foreach ($list as $wl) {
            $types[$wl->getWorkflowTypeID()] = $wl->getWorkflowTypeName();
        }
        $this->set('types', $types);
        $this->set('typeObjects', $list);
    }

    public function workflow_deleted()
    {
        $this->set("message", t('Workflow deleted successfully.'));
        $this->view();
    }

    public function submit_add()
    {
        if (!Loader::helper('validation/token')->validate('add_workflow')) {
            $this->error->add(Loader::helper('validation/token')->getErrorMessage());
        }
        $wfName = trim($this->post('wfName'));
        if (!$wfName) {
            $this->error->add(t('You must give the workflow a name.'));
        } elseif (preg_match('/[<>{};?"`]/i', $wfName)) {
            $this->error->add(t('Invalid characters in workflow name.'));
        }
        $db = Loader::db();
        $wfID = $db->getOne('SELECT wfID FROM Workflows WHERE wfName=?', array($wfName));
        if ($wfID) {
            $this->error->add(t('Workflow with that name already exists.'));
        }
        if (!$this->error->has()) {
            $type = WorkflowType::getByID($this->post('wftID'));
            if (!is_object($type) || !($type instanceof WorkflowType)) {
                $this->error->add(t('Invalid Workflow Type.'));
                $this->add();

                return;
            }
            $wf = Workflow::add($type, $wfName);
            $wf->updateDetails($this->post());
            $this->redirect('/dashboard/system/permissions/workflows/', 'view_detail', $wf->getWorkflowID(), 'workflow_created');
        }
        $this->add();
    }

    public function edit_details($wfID = false)
    {
        $wf = Workflow::getByID($wfID);
        if (!is_object($wf)) {
            $this->redirect("/dashboard/system/permissions/workflows");
        }
        $this->set('wf', $wf);
    }

    public function view_detail($wfID = false, $message = false)
    {
        $wf = Workflow::getByID($wfID);
        if (!is_object($wf)) {
            $this->redirect("/dashboard/system/permissions/workflows");
        }
        switch ($message) {
            case 'workflow_created':
                $this->set('message', t('Workflow created successfully. You may now modify its properties.'));
                break;
            case 'workflow_updated':
                $this->set('message', t('Workflow updated.'));
                break;
        }

        $this->set('wf', $wf);
    }
}
