<?php

namespace App\Controllers;

use CodeIgniter\HTTP\RedirectResponse;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use CodeIgniter\Validation\Validation;
use Psr\Log\LoggerInterface;

use App\Models\UserModel;
use App\Entities\UserEntity;

class UserController extends MVController
{
    private $_model = null;
    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
    {
        parent::initController($request, $response, $logger);
        $this->class_name .= "User";
        $this->class_path .= $this->class_name;
        $this->view_path = strtolower($this->view_root . $this->class_name);
        $this->title      = lang("{$this->class_path}.title");
        helper($this->class_path);
    }
    protected function getModel(): UserModel
    {
        if ($this->_model === null) {
            $this->_model = new UserModel();
        }
        return $this->_model;
    }
    protected function setFormFieldRule($field, Validation $validation, string $action): Validation
    {
        switch ($field) {
            case 'role':
                //아래 Rule Array는 필드명.* checkbox를 사용
                $validation->setRule($field . ".*", $field, $this->getModel()->getFieldRule($action, $field));
                break;
            default:
                $validation = parent::setFormFieldRule($field, $validation, $action);
                break;
        }
        return $validation;
    }
    protected function getFormFieldOption(string $field, array $options = []): array
    {
        switch ($field) {
            default:
                $options = parent::getFormFieldOption($field, $options);
                break;
        }
        return $options;
    }
    protected function getFormData(string $field, array $formDatas): array
    {
        switch ($field) {
            case 'role':
                $roles = $this->request->getVar($field) ?? [];
                if (!count($roles)) {
                    throw new \Exception("권한이 지정되지 않았습니다.");
                }
                $formDatas[$field] = implode(DEFAULTS["DELIMITER_ROLE"], $roles);
                break;
            default:
                $formDatas = parent::getFormData($field, $formDatas);
                break;
        }
        return $formDatas;
    }
    private function init(string $action): void
    {
        $this->action          = $action;
        $this->fields          = ['id', 'passwd'];
        $this->field_rules     = $this->getModel()->getFieldRules($this->action, $this->fields);
    }
    //로그인화면
    public function create_form(): RedirectResponse|string
    {
        $this->init('create');
        return $this->create_form_procedure();
    }
    //로그인처리
    public function create(): RedirectResponse|string
    {
        $this->init(__FUNCTION__);
        $this->formDatas = $this->getFormDatas();
        $id        = $this->request->getVar('id');
        $passwd    = $this->request->getVar('passwd');
        if (!$id) {
            session()->setFlashdata('error', "사용자ID를 입력해주세요!");
            return redirect()->back()->withInput();
        }
        if (!$passwd) {
            session()->setFlashdata('error', "암호를 입력해주세요!");
            return redirect()->back()->withInput();
        }
        $entity = $this->getModel()->getEntityByID($id);
        if (is_null($entity) || !isset($entity->passwd)) {
            session()->setFlashdata('error', "사용자ID: {$id}가 존재하지 않습니다.");
            return redirect()->back()->withInput();
        }
        if (password_verify($passwd, $entity->passwd)) {
            //Session에 Login 정보전달
            $authData = [
                'uid' => $entity->getPK(),
                'name' => $entity->getTitle(),
                'email' => $entity->email,
                'role' => $entity->role,
                SESSION_NAMES['ISLOGIN'] => true
            ];
            session()->set($authData);
            return redirect()->to($this->request->getVar(SESSION_NAMES['RETURN_URL']) ? $this->request->getVar(SESSION_NAMES['RETURN_URL']) : "/");
        } else {
            session()->setFlashdata('error', '암호가 맞지 않습니다.');
            return redirect()->back()->withInput();
        }
    }
    //로그아웃
    public function logout(): RedirectResponse
    {
        //Session에 Login 정보 삭제
        session()->set([SESSION_NAMES['ISLOGIN'] => false]);
        session_destroy();
        return redirect()->route('/');
    }
}