<?php

namespace App\Controllers;

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

abstract class MVController extends CommonController
{
    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
    {
        parent::initController($request, $response, $logger);
    }
    abstract protected function create_init(): void;
    abstract protected function getModel(): mixed;
    //Field별 Form Option용
    protected function getFormFilterOption(string $filter_field, array $filter_options): array
    {
        switch ($filter_field) {
            default:
                $temps = lang($this->class_name . '.' . strtoupper($filter_field));
                if (!is_array($temps)) {
                    throw new \Exception(__FUNCTION__ . "에서 {$filter_field}의 데이터가 array가 아닙니다.\n" . var_export($temps, true));
                }
                $filter_options[$filter_field] = [
                    ["" => lang($this->class_name . '.label.' . $filter_field) . ' 선택'],
                    lang($this->class_name . '.' . strtoupper($filter_field))
                ];
                break;
        }
        return $filter_options;
    }
    //Field별 Form Option용
    final public function getFormFilterOptions(array $filter_options = []): array
    {
        foreach ($this->filter_fields as $filter_field) {
            if (is_array($filter_field)) {
                throw new \Exception(__FUNCTION__ . "에서 filter_field가 array 입니다.\n" . var_export($filter_field, true));
            }
            $filter_options = $this->getFormFilterOption($filter_field, $filter_options);
        }
        return $filter_options;
    }
    protected function getFormFieldRule(string $field, array $rules): array
    {
        if (is_array($field)) {
            throw new \Exception(__FUNCTION__ . "=> field가 array 입니다.\n" . var_export($field, true));
        }
        switch ($field) {
            default:
                $rules[$field] = $this->_model->getFieldRule($field, $rules);;
                break;
        }
        return $rules;
    }
    final public function getFormFieldRules(array $rules = []): array
    {
        foreach ($this->fields as $field) {
            $rules = $this->getFormFieldRule($field, $rules);
        }
        return $rules;
    }
    //전송된 데이터 검증
    protected function validateFormData(): void
    {
        //변경할 값 확인 : Upload된 파일 검증시 $this->request->getVar()보다 먼처 체크필요
        $validation = \Config\Services::validation();
        $validation->setRules($this->getModel()->getFieldRules($this->fields));
        if (!$validation->withRequest($this->request)->run()) {
            throw new \Exception("데이터 검증 오류발생\n" . implode("\n", $this->validator->getErrors()));
        }
    }
    //전송된 데이터
    protected function getFormData(string $field): void
    {
        switch ($field) {
            default:
                $this->formDatas[$field] = rtrim($this->request->getVar($field));
                break;
        }
    }
    //전송된 데이터 재정의
    protected function convertFormData(string $field): void
    {
        switch ($field) {
            default:
                break;
        }
    }

    final public function create_form_process(): RedirectResponse|string
    {
        helper(['form']);
        try {
            $this->create_init();
            $this->create_form_process();
            $this->session->keepFlashdata(SESSION_NAMES['RETURN_URL']);
            return view("/{$this->class_name}/insert", ['attributes' => $this->getAttributes]);
        } catch (\Exception $e) {
            log_message("error", $e->getMessage());
            return redirect()->to($this->session->getFlashdata(SESSION_NAMES['RETURN_URL']) ?: "/")->with(SESSION_NAMES['RETURN_MSG'], $e->getMessage());
        }
    }
    abstract protected function create_process_submit(): mixed;
    final protected function create_process(): mixed
    {
        $this->getModel()->transStart();
        try {
            $this->create_init();
            $this->validateFormData();
            foreach ($this->fields as $field) {
                $this->getFormData($field);
            }
            foreach ($this->fields as $field) {
                $this->convertFormData($field);
            }
            $entity = $this->create_process_submit();
            log_message("notice", __FUNCTION__ . "=>{$entity->getTitle()} 작업을 완료하였습니다.");
            return redirect()->to($this->_session->getFlashdata(SESSION_NAMES['RETURN_URL']) ?: "/");
        } catch (\Exception $e) {
            //Transaction Rollback
            $this->getModel()->transRollback();
            log_message("error", $e->getMessage());
            $this->session->setFlashdata(SESSION_NAMES['RETURN_MSG'],  __FUNCTION__ . " 실패하였습니다.\n" . $e->getMessage());
            $this->session->keepFlashdata(SESSION_NAMES['RETURN_URL']);
            return redirect()->back()->withInput();
        }
    }
}