<?php

namespace App\Service\Campaign\Tasklist;

use App\Entity\Campaign\Tasklist\Task;
use App\Service\CampaignService;
use App\Service\DataGrid\DataGridInterface;
use App\Service\TimeLogTypeCategoryService;
use App\Service\TimeLogTypeService;
use App\Service\UserService;
use Doctrine\ORM\EntityNotFoundException;

final class TaskService
{
    /**
     * @var TaskRepositoryInterface
     */
    private $repository;
    /**
     * @var CampaignService
     */
    private $campaignService;
    /**
     * @var UserService
     */
    private $userService;
    /**
     * @var TimeLogTypeService
     */
    private $timeLogTypeService;
    /**
     * @var TimeLogTypeCategoryService
     */
    private $timeLogTypeCategoryService;

    /**
     * TaskService constructor.
     *
     * @param TaskRepositoryInterface $repository
     */
    public function __construct(TaskRepositoryInterface $repository, CampaignService $campaignService, UserService $userService, TimeLogTypeService $timeLogTypeService, TimeLogTypeCategoryService $timeLogTypeCategoryService)
    {
        $this->repository = $repository;
        $this->campaignService = $campaignService;
        $this->userService = $userService;
        $this->timeLogTypeService = $timeLogTypeService;
        $this->timeLogTypeCategoryService = $timeLogTypeCategoryService;
    }

    /**
     * @param int $id
     *
     * @return Task
     *
     * @throws EntityNotFoundException
     */
    public function get(int $id): Task
    {
        $task = $this->repository->findById($id);
        if (!$task) {
            throw new EntityNotFoundException('Task with id '.$id.' does not exist!');
        }

        return $task;
    }

    /**
     * @return array|null
     */
    public function getAll(): ?array
    {
        return $this->repository->findAll();
    }

    /**
     * @return array|null
     */
    public function getByGrid(DataGridInterface $dataGrid): ?array
    {
        $criteria = $this->getCriteria($dataGrid);

        return $this->repository->findBy(
            $criteria,
            [
                $dataGrid->getSorters()->first()->getSort() => $dataGrid->getSorters()->first()->getOrder(),
            ],
            $dataGrid->getNavigation()->getRpp(),
            $dataGrid->getNavigation()->getRpp() * $dataGrid->getNavigation()->getPage());
    }

    /**
     * @param DataGridInterface $dataGrid
     *
     * @return array
     */
    private function getCriteria(DataGridInterface $dataGrid): array
    {
        $criteria = [];
        if ($dataGrid->getFilters()->containsKey('q') && $dataGrid->getFilters()->get('q')->isValid()) {
            $criteria += ['q' => $dataGrid->getFilters()->get('q')->getValue()];
        }

        if ($dataGrid->getFilters()->containsKey('tasklist') && $dataGrid->getFilters()->get('tasklist')->isValid()) {
            $criteria += ['tasklist' => $dataGrid->getFilters()->get('tasklist')->getValue()];
        }

        if ($dataGrid->getFilters()->containsKey('campaign') && $dataGrid->getFilters()->get('campaign')->isValid()) {
            $criteria += ['campaign' => $dataGrid->getFilters()->get('campaign')->getValue()];
        }

        if ($dataGrid->getFilters()->containsKey('user') && $dataGrid->getFilters()->get('user')->isValid()) {
            $criteria += ['user' => $dataGrid->getFilters()->get('user')->getValue()];
        }

        if ($dataGrid->getFilters()->containsKey('completed')) {
            $criteria += ['completed' => $dataGrid->getFilters()->get('completed')->getValue()];
        }

        if ($dataGrid->getFilters()->containsKey('template')) {
            $criteria += ['template' => $dataGrid->getFilters()->get('template')->getValue()];
        }

        if ($dataGrid->getFilters()->containsKey('completedAt') && $dataGrid->getFilters()->get('completedAt')->isValid()) {
            $criteria += ['completedAt' => $dataGrid->getFilters()->get('completedAt')->getValue()];
        }

        return $criteria;
    }

    /**
     * @param DataGridInterface $dataGrid
     *
     * @return int
     */
    public function countByGrid(DataGridInterface $dataGrid): int
    {
        $criteria = $this->getCriteria($dataGrid);

        return $this->repository->count($criteria);
    }

    public function aggregateByGrid(DataGridInterface $dataGrid)
    {
        $criteria = $this->getCriteria($dataGrid);

        $result = $this->repository->aggregateByGrid($criteria, $dataGrid);

        foreach ($result as &$row) {
            if (array_key_exists('user', $row)) {
                if (null !== $row['user']) {
                    $row['user'] = $this->userService->getUser((int) $row['user']);
                }
            }
            if (array_key_exists('campaign', $row)) {
                if (null !== $row['campaign']) {
                    $row['campaign'] = $this->campaignService->getCampaign((int) $row['campaign']);
                }
            }
        }

        return $result;
    }

    /**
     * @param Task $task
     *
     * @return Task
     */
    public function save(Task $task): Task
    {
        $this->repository->save($task);

        return $task;
    }

    /**
     * @param Task $task
     */
    public function delete(Task $task): void
    {
        $this->repository->delete($task);
    }

    public function getFirstCompletedAt(): ?string
    {
        return $this->repository->getFirstCompletedAt();
    }

    public function moveTasksBetweenUsers(int $from, int $to)
    {
        return $this->repository->moveTasksBetweenUsers($from, $to);
    }
}