<?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 getFormFieldOption(string $field, array $options = []): array
    {
        switch ($field) {
            default:
                $temps = lang($this->class_name . '.' . strtoupper($field));
                if (!is_array($temps)) {
                    throw new \Exception(__FUNCTION__ . "에서 {$field}의 데이터가 array가 아닙니다.\n" . var_export($temps, true));
                }
                $options = [
                    ["" => lang($this->class_name . '.label.' . $field) . ' 선택'],
                    lang($this->class_name . '.' . strtoupper($field))
                ];
                break;
        }
        return $options;
    }
    protected function getFormFieldInput(string $field, string $value, array $inputs = []): array
    {
        switch ($field) {
            case 'status':
                $inputs[$field] = form_dropdown(
                    $field,
                    $this->getFormFieldOption($field),
                    $value
                );
                break;
            case 'updated_at':
            case 'created_at':
                $inputs[$field] = form_input($field, $value, ["class" => " calender"]);
                break;
            default:
                $inputs[$field] = form_input($field, $value);
                break;
        }
        return $inputs;
    }
    final public function getFormFieldInputs(array $inputs = []): array
    {
        foreach ($this->fields as $field) {
            if (is_array($field)) {
                throw new \Exception(__FUNCTION__ . "에서 field array 입니다.\n" . var_export($field, true));
            }
            $inputs = $this->getFormFieldInput($field, old($field) ?? DEFAULTS['EMPTY'], $inputs);
        }
        return $inputs;
    }
    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->forminputs = $this->getFormFieldInputs();
            $this->session->keepFlashdata(SESSION_NAMES['RETURN_URL']);
            return view(
                $this->view_path . "/" . strtolower($this->class_name) . "/create",
                ['viewDatas' => $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();
        }
    }
}