<?php

declare(strict_types=1);

namespace App\Modules\Administration\Controllers;

use App\Controllers\Controller;
use App\Modules\Administration\Services\AuthenticationService;
use App\Modules\Administration\Services\AuthorizationService;
use App\Modules\Administration\Services\DepartmentService;
use RuntimeException;
use System\Http\Request;
use System\View\View;

final class DepartmentController extends Controller
{
    public function __construct(
        private AuthenticationService $authentication,
        private AuthorizationService $authorization,
        private DepartmentService $departmentService,
        private Request $request,
        View $view
    ) {
        parent::__construct($view);
    }

    private function protect(): void
    {
        if (!$this->authentication->check()) {

            header(
                'Location: /public/login'
            );

            exit;
        }
    }

    private function requireAdministrator(): void
    {
        if (
            !$this->authorization
                ->isAdministrator()
        ) {

            header(
                'Location: /public/403'
            );

            exit;
        }
    }

    public function index(): void
    {
        $this->protect();
        $this->requireAdministrator();

        $this->render(
            'departments/index',
            [
                'title' =>
                    'Department Management',

                'departments' =>
                    $this->departmentService
                        ->all(),

                'created' =>
                    $this->request
                        ->input('created'),

                'updated' =>
                    $this->request
                        ->input('updated'),

                'statusChanged' =>
                    $this->request
                        ->input(
                            'status_changed'
                        ),

                'error' =>
                    $this->request
                        ->input('error')
            ]
        );
    }

    public function create(): void
    {
        $this->protect();
        $this->requireAdministrator();

        $this->render(
            'departments/create',
            [
                'title' =>
                    'Create Department',

                'branches' =>
                    $this->departmentService
                        ->branches()
            ]
        );
    }

    public function store(): void
    {
        $this->protect();
        $this->requireAdministrator();

        try {

            $this->departmentService->create(
                $this->request->all()
            );

            header(
                'Location: /public/departments?created=1'
            );

            exit;

        } catch (\Throwable $exception) {

            $this->render(
                'departments/create',
                [
                    'title' =>
                        'Create Department',

                    'branches' =>
                        $this->departmentService
                            ->branches(),

                    'error' =>
                        $exception->getMessage(),

                    'old' =>
                        $this->request->all()
                ]
            );
        }
    }

    public function edit(): void
    {
        $this->protect();
        $this->requireAdministrator();

        $id = (int) $this->request->input(
            'id',
            0
        );

        $department =
            $this->departmentService->find(
                $id
            );

        if ($department === null) {

            throw new RuntimeException(
                'Department not found.'
            );
        }

        $this->render(
            'departments/edit',
            [
                'title' =>
                    'Edit Department',

                'department' =>
                    $department,

                'branches' =>
                    $this->departmentService
                        ->branches()
            ]
        );
    }

    public function update(): void
    {
        $this->protect();
        $this->requireAdministrator();

        $id = (int) $this->request->input(
            'id',
            0
        );

        try {

            $this->departmentService->update(
                $id,
                $this->request->all()
            );

            header(
                'Location: /public/departments?updated=1'
            );

            exit;

        } catch (\Throwable $exception) {

            $this->render(
                'departments/edit',
                [
                    'title' =>
                        'Edit Department',

                    'department' =>
                        $this->departmentService
                            ->find($id),

                    'branches' =>
                        $this->departmentService
                            ->branches(),

                    'error' =>
                        $exception->getMessage()
                ]
            );
        }
    }

    public function toggleStatus(): void
    {
        $this->protect();
        $this->requireAdministrator();

        $id = (int) $this->request->input(
            'id',
            0
        );

        try {

            $this->departmentService
                ->toggleStatus($id);

            header(
                'Location: /public/departments?status_changed=1'
            );

        } catch (\Throwable $exception) {

            header(
                'Location: /public/departments?error=' .
                urlencode(
                    $exception->getMessage()
                )
            );
        }

        exit;
    }
}