<?php

namespace App\Controllers\Admin;

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

class FreeRecipient extends BaseController
{
    private FreeRecipientModel $model;

    public function __construct()
    {
        $this->model = model(FreeRecipientModel::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) {
            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('free_recipient_search', [
                'search_field' => $searchField,
                'search_query' => $searchQuery,
            ]);

            return redirect()->to(mgmt_url('free-recipients'));
        }

        $fromGetField = trim((string) ($this->request->getGet('search_field') ?? ''));
        $fromGetQuery = trim((string) ($this->request->getGet('search_query') ?? ''));
        $flash        = session()->getFlashdata('free_recipient_search');
        if ($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 = '';
        }

        $allowedFields = ['fr_idx', 'fr_type_code', 'fr_name', 'fr_phone', 'fr_addr', 'fr_dong_code', 'fr_note'];
        if (! in_array($searchField, $allowedFields, true)) {
            $searchField = 'fr_name';
        }

        $typeCodes = $this->getCodeOptions('H');
        $typeCodeMap = [];
        foreach ($typeCodes as $cd) {
            $typeCodeMap[(string) $cd->cd_code] = (string) $cd->cd_name;
        }

        $dongCodes = $this->getCodeOptions('D');
        $dongCodeMap = [];
        foreach ($dongCodes as $cd) {
            $dongCodeMap[(string) $cd->cd_code] = (string) $cd->cd_name;
        }

        $builder = $this->model->where('fr_lg_idx', $lgIdx);
        if ($searchQuery !== '') {
            if ($searchField === 'fr_idx') {
                if (ctype_digit($searchQuery)) {
                    $builder->where('fr_idx', (int) $searchQuery);
                } else {
                    $builder->where('fr_idx', 0);
                }
            } elseif ($searchField === 'fr_type_code') {
                $codes = [];
                foreach ($typeCodes 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('fr_idx', 0);
                } else {
                    $builder->whereIn('fr_type_code', array_values(array_unique($codes)));
                }
            } elseif ($searchField === 'fr_dong_code') {
                $codes = [];
                foreach ($dongCodes 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('fr_idx', 0);
                } else {
                    $builder->whereIn('fr_dong_code', array_values(array_unique($codes)));
                }
            } else {
                $builder->like($searchField, $searchQuery);
            }
        }

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

        return $this->renderWorkPage('무료용 대상자 관리', 'admin/free_recipient/index', [
            'list'            => $list,
            'pager'           => $pager,
            'search_field'    => $searchField,
            'search_query'    => $searchQuery,
            'type_code_map'   => $typeCodeMap,
            'dong_code_map'   => $dongCodeMap,
        ]);
    }

    public function create()
    {
        return $this->renderWorkPage('무료용 대상자 등록', 'admin/free_recipient/create', [
            'typeCodes' => $this->getCodeOptions('H'),
            'dongCodes' => $this->getCodeOptions('D'),
        ]);
    }

    public function store()
    {
        helper('admin');
        $rules = [
            'fr_type_code' => 'required|max_length[20]',
            'fr_name'      => 'required|max_length[100]',
            'fr_end_date'  => 'permit_empty|valid_date[Y-m-d]',
        ];
        if (! $this->validate($rules)) {
            return redirect()->back()->withInput()->with('errors', $this->validator->getErrors());
        }

        $this->model->insert([
            'fr_lg_idx'    => admin_effective_lg_idx(),
            'fr_type_code' => $this->request->getPost('fr_type_code'),
            'fr_name'      => $this->request->getPost('fr_name'),
            'fr_phone'     => $this->request->getPost('fr_phone') ?? '',
            'fr_addr'      => $this->request->getPost('fr_addr') ?? '',
            'fr_dong_code' => $this->request->getPost('fr_dong_code') ?? '',
            'fr_note'      => $this->request->getPost('fr_note') ?? '',
            'fr_end_date'  => $this->request->getPost('fr_end_date') ?: null,
            'fr_state'     => 1,
            'fr_regdate'   => date('Y-m-d H:i:s'),
        ]);

        return redirect()->to(mgmt_url('free-recipients'))->with('success', '무료용 대상자가 등록되었습니다.');
    }

    public function edit(int $id)
    {
        helper('admin');
        $item = $this->model->find($id);
        if (! $item || (int) $item->fr_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('free-recipients'))->with('error', '대상자를 찾을 수 없습니다.');
        }

        return $this->renderWorkPage('무료용 대상자 수정', 'admin/free_recipient/edit', [
            'item'      => $item,
            'typeCodes' => $this->getCodeOptions('H'),
            'dongCodes' => $this->getCodeOptions('D'),
        ]);
    }

    public function update(int $id)
    {
        helper('admin');
        $item = $this->model->find($id);
        if (! $item || (int) $item->fr_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('free-recipients'))->with('error', '대상자를 찾을 수 없습니다.');
        }

        $rules = [
            'fr_name'  => 'required|max_length[100]',
            'fr_state' => 'required|in_list[0,1]',
        ];
        if (! $this->validate($rules)) {
            return redirect()->back()->withInput()->with('errors', $this->validator->getErrors());
        }

        $this->model->update($id, [
            'fr_type_code' => $this->request->getPost('fr_type_code') ?? $item->fr_type_code,
            'fr_name'      => $this->request->getPost('fr_name'),
            'fr_phone'     => $this->request->getPost('fr_phone') ?? '',
            'fr_addr'      => $this->request->getPost('fr_addr') ?? '',
            'fr_dong_code' => $this->request->getPost('fr_dong_code') ?? '',
            'fr_note'      => $this->request->getPost('fr_note') ?? '',
            'fr_end_date'  => $this->request->getPost('fr_end_date') ?: null,
            'fr_state'     => (int) $this->request->getPost('fr_state'),
        ]);

        return redirect()->to(mgmt_url('free-recipients'))->with('success', '무료용 대상자가 수정되었습니다.');
    }

    public function delete(int $id)
    {
        helper('admin');
        $item = $this->model->find($id);
        if (! $item || (int) $item->fr_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('free-recipients'))->with('error', '대상자를 찾을 수 없습니다.');
        }

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

        return redirect()->to(mgmt_url('free-recipients'))->with('success', '무료용 대상자가 삭제되었습니다.');
    }
}