<?php

namespace App\Controllers\Admin;

use App\Controllers\BaseController;
use App\Models\ManagerModel;
use App\Models\CodeKindModel;
use App\Models\CodeDetailModel;

class Manager extends BaseController
{
    private ManagerModel $model;

    public function __construct()
    {
        $this->model = model(ManagerModel::class);
    }

    private function getCodeOptions(string $ckCode): array
    {
        helper('admin');
        $lgIdx = admin_effective_lg_idx();
        $kind   = model(CodeKindModel::class)->where('ck_code', $ckCode)->first();

        return $kind ? model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx) : [];
    }

    public function index()
    {
        helper('admin');
        $lgIdx = admin_effective_lg_idx();
        if (!$lgIdx) {
            helper('admin');

            return redirect()->to(work_area_home_url())->with('error', '지자체를 선택해 주세요.');
        }

        if ($this->request->is('post')) {
            $searchField = trim((string) ($this->request->getPost('search_field') ?? ''));
            $searchQuery = trim((string) ($this->request->getPost('search_query') ?? ''));
            session()->setFlashdata('manager_search', [
                'search_field' => $searchField,
                'search_query' => $searchQuery,
            ]);

            return redirect()->to(mgmt_url('managers'));
        }

        $fromGetField = trim((string) ($this->request->getGet('search_field') ?? ''));
        $fromGetQuery = trim((string) ($this->request->getGet('search_query') ?? ''));
        $flash        = session()->getFlashdata('manager_search');
        if ($fromGetField !== '' || $fromGetQuery !== '') {
            $searchField = $fromGetField;
            $searchQuery = $fromGetQuery;
        } elseif (is_array($flash)) {
            $searchField = trim((string) ($flash['search_field'] ?? ''));
            $searchQuery = trim((string) ($flash['search_query'] ?? ''));
        } else {
            $searchField = '';
            $searchQuery = '';
        }

        $allowedFields = ['mg_idx', 'mg_name', 'mg_dept_code', 'mg_position_code', 'mg_tel', 'mg_phone', 'mg_email'];
        if (! in_array($searchField, $allowedFields, true)) {
            $searchField = 'mg_name';
        }

        $deptCodes = $this->getCodeOptions('S');
        $posCodes  = $this->getCodeOptions('T');
        $deptCodeMap = [];
        foreach ($deptCodes as $cd) {
            $deptCodeMap[(string) $cd->cd_code] = (string) $cd->cd_name;
        }
        $posCodeMap = [];
        foreach ($posCodes as $cd) {
            $posCodeMap[(string) $cd->cd_code] = (string) $cd->cd_name;
        }

        $builder = $this->model->where('mg_lg_idx', $lgIdx);
        if ($searchQuery !== '') {
            if ($searchField === 'mg_idx') {
                if (ctype_digit($searchQuery)) {
                    $builder->where('mg_idx', (int) $searchQuery);
                } else {
                    $builder->where('mg_idx', 0);
                }
            } elseif ($searchField === 'mg_dept_code' || $searchField === 'mg_position_code') {
                $sourceList = $searchField === 'mg_dept_code' ? $deptCodes : $posCodes;
                $codes      = [];
                foreach ($sourceList as $cd) {
                    $code = (string) ($cd->cd_code ?? '');
                    $name = (string) ($cd->cd_name ?? '');
                    if ($code !== '' && (stripos($code, $searchQuery) !== false || stripos($name, $searchQuery) !== false)) {
                        $codes[] = $code;
                    }
                }
                if ($codes === []) {
                    $builder->where('mg_idx', 0);
                } else {
                    $builder->whereIn($searchField, array_values(array_unique($codes)));
                }
            } else {
                $builder->like($searchField, $searchQuery);
            }
        }

        $list = $builder->orderBy('mg_idx', 'DESC')->paginate(20);
        $pager = $this->model->pager;
        $pager->setPath('bag/managers');

        return $this->renderWorkPage('담당자 관리', 'admin/manager/index', [
            'list'         => $list,
            'pager'        => $pager,
            'search_field' => $searchField,
            'search_query' => $searchQuery,
            'dept_code_map' => $deptCodeMap,
            'pos_code_map'  => $posCodeMap,
        ]);
    }

    public function create()
    {
        return $this->renderWorkPage('담당자 등록', 'admin/manager/create', [
            'deptCodes'     => $this->getCodeOptions('S'),
            'positionCodes' => $this->getCodeOptions('T'),
        ]);
    }

    public function store()
    {
        helper(['admin', 'url']);
        $rules = [
            'mg_name'  => 'required|max_length[50]',
            'mg_tel'   => 'permit_empty|max_length[20]',
            'mg_phone' => 'permit_empty|max_length[20]',
            'mg_email' => 'permit_empty|valid_email|max_length[100]',
        ];
        if (! $this->validate($rules)) {
            return redirect()->back()->withInput()->with('errors', $this->validator->getErrors());
        }

        $this->model->insert([
            'mg_lg_idx'        => admin_effective_lg_idx(),
            'mg_name'          => $this->request->getPost('mg_name'),
            'mg_dept_code'     => $this->request->getPost('mg_dept_code') ?? '',
            'mg_position_code' => $this->request->getPost('mg_position_code') ?? '',
            'mg_tel'           => $this->request->getPost('mg_tel') ?? '',
            'mg_phone'         => $this->request->getPost('mg_phone') ?? '',
            'mg_email'         => $this->request->getPost('mg_email') ?? '',
            'mg_state'         => 1,
            'mg_regdate'       => date('Y-m-d H:i:s'),
        ]);

        return redirect()->to(mgmt_url('managers'))->with('success', '담당자가 등록되었습니다.');
    }

    public function edit(int $id)
    {
        helper(['admin', 'url']);
        $item = $this->model->find($id);
        if (!$item || (int) $item->mg_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('managers'))->with('error', '담당자를 찾을 수 없습니다.');
        }

        return $this->renderWorkPage('담당자 수정', 'admin/manager/edit', [
            'item'          => $item,
            'deptCodes'     => $this->getCodeOptions('S'),
            'positionCodes' => $this->getCodeOptions('T'),
        ]);
    }

    public function update(int $id)
    {
        helper(['admin', 'url']);
        $item = $this->model->find($id);
        if (!$item || (int) $item->mg_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('managers'))->with('error', '담당자를 찾을 수 없습니다.');
        }

        $rules = [
            'mg_name'  => 'required|max_length[50]',
            'mg_state' => 'required|in_list[0,1]',
        ];
        if (! $this->validate($rules)) {
            return redirect()->back()->withInput()->with('errors', $this->validator->getErrors());
        }

        $this->model->update($id, [
            'mg_name'          => $this->request->getPost('mg_name'),
            'mg_dept_code'     => $this->request->getPost('mg_dept_code') ?? '',
            'mg_position_code' => $this->request->getPost('mg_position_code') ?? '',
            'mg_tel'           => $this->request->getPost('mg_tel') ?? '',
            'mg_phone'         => $this->request->getPost('mg_phone') ?? '',
            'mg_email'         => $this->request->getPost('mg_email') ?? '',
            'mg_state'         => (int) $this->request->getPost('mg_state'),
        ]);

        return redirect()->to(mgmt_url('managers'))->with('success', '담당자가 수정되었습니다.');
    }

    public function delete(int $id)
    {
        helper(['admin', 'url']);
        $item = $this->model->find($id);
        if (!$item || (int) $item->mg_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('managers'))->with('error', '담당자를 찾을 수 없습니다.');
        }

        $this->model->delete($id);

        return redirect()->to(mgmt_url('managers'))->with('success', '담당자가 삭제되었습니다.');
    }
}