<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\ContractAllowableCity;
use App\Models\City;
use App\Models\Park;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;
use Symfony\Component\HttpFoundation\StreamedResponse;

class ContractAllowableCityController extends Controller
{
    /**
     * 一覧表示
     */
    public function list(Request $request)
    {
        $inputs = $request->all();
        $inputs['isMethodPost'] = $request->isMethod('post');

        // 解除処理
        if ($request->isMethod('post') && $request->input('action') === 'unlink') {
            // バリデーション：解除条件が1つも入力されていない場合はエラー
            if (
                !$request->filled('contract_allowable_city_id')
                && !$request->filled('city_id')
                && !$request->filled('contract_allowable_city_name')
                && !$request->filled('park_id')
            ) {
                return back()->withErrors(['解除条件を1つ以上入力してください。']);
            }

            $query = ContractAllowableCity::query();

            if ($request->filled('contract_allowable_city_id')) {
                $query->where('contract_allowable_city_id', $request->contract_allowable_city_id);
            }
            if ($request->filled('city_id')) {
                $query->where('city_id', $request->city_id);
            }
            if ($request->filled('contract_allowable_city_name')) {
                $query->where('contract_allowable_city_name', 'like', '%' . $request->contract_allowable_city_name . '%');
            }
            if ($request->filled('park_id')) {
                $query->where('park_id', $request->park_id);
            }

            // 推荐：直接批量删除
            $count = $query->delete();
            return redirect()->route('contract_allowable_cities')->with('success', '解除しました');
        }

        // 通常の絞り込み処理
        $list = ContractAllowableCity::search($inputs);

        return view('admin.contract_allowable_cities.list', [
            'list' => $list,
            'inputs' => $inputs,
            'sort' => $inputs['sort'] ?? '',
            'sort_type' => $inputs['sort_type'] ?? '',
            'cityList' => City::getList(),
            'parkList' => Park::getList(),
        ]);
    }

    /**
     * 新規登録
     */
    public function add(Request $request)
    {
        if ($request->isMethod('post')) {
            $validated = $request->validate([
                'city_id' => 'required|integer',
                'contract_allowable_city_name' => 'required|string|max:20',
                'park_id' => 'required|integer',
                'same_district_flag' => 'required|integer',
            ]);

            $validated['operator_id'] = Auth::user()->ope_id;

            ContractAllowableCity::create($validated);

            return redirect()->route('contract_allowable_cities')
                ->with('success', '登録しました。');
        }

        return view('admin.contract_allowable_cities.add', [
            'record'   => null,
            'cityList' => City::getList(),
            'parkList' => Park::getList(),
        ]);
    }


    /**
     * 編集
     */
    public function edit(Request $request, $id)
    {
        $record = ContractAllowableCity::getByPk($id);
        if (!$record) {
            return redirect()->route('contract_allowable_cities')
                ->with('error', 'データが存在しません');
        }

        if ($request->isMethod('post')) {
            $validated = $request->validate([
                'city_id' => 'required|integer',
                'contract_allowable_city_name' => 'required|string|max:20',
                'park_id' => 'required|integer',
                'same_district_flag' => 'required|integer',
            ]);

            $record->fill($validated);
            $record->operator_id = Auth::user()->ope_id;
            $record->save();

            return redirect()->route('contract_allowable_cities')
                ->with('success', '更新しました。');
        }

        return view('admin.contract_allowable_cities.edit', [
            'record'   => $record,
            'cityList' => City::getList(),
            'parkList' => Park::getList(),
        ]);
    }


    /**
     * 詳細参照（表示のみ）
     */
    public function info($id)
    {
        $record = ContractAllowableCity::getByPk($id);
        if (!$record) {
            return redirect()->route('contract_allowable_cities')->with('error', 'データが存在しません');
        }

        return view('admin.contract_allowable_cities.edit', [
            'record' => $record,
            'cityList' => City::getList(),
            'parkList' => Park::getList(),
            'mode' => 'info'
        ]);
    }

    /**
     * 一括削除（単一・複数対応）
     */
    public function delete(Request $request)
    {
        // バリデーション：'id'は必須、配列の場合は各要素が整数
        $request->validate([
            'id' => 'required',
            'id.*' => 'integer',
        ]);

        // idを配列化（単一でも複数でも対応）
        $ids = (array)$request->input('id');

        // 削除処理
        // ContractAllowableCity::destroy($ids) が使える場合
        $deleted = ContractAllowableCity::destroy($ids);

        // 削除件数でメッセージ分岐
        if ($deleted > 0) {
            return redirect()->route('contract_allowable_cities')->with('success', '削除しました。');
        } else {
            return redirect()->route('contract_allowable_cities')->with('error', '削除に失敗しました。');
        }
    }

    /**
     * CSVエクスポート
     */
    public function export(Request $request)
    {
        $filename = 'contract_allowable_cities_' . now()->format('Ymd_His') . '.csv';

        $list = ContractAllowableCity::search($request->all());

        $headers = [
            'Content-Type' => 'text/csv',
            'Content-Disposition' => "attachment; filename=\"$filename\"",
        ];

        return new StreamedResponse(function () use ($list) {
            $handle = fopen('php://output', 'w');

            // ヘッダー
            fputcsv($handle, ['契約許容市区ID', '市区ID', '許容市区名', '駐輪場ID', '隣接区フラグ']);

            foreach ($list as $item) {
                fputcsv($handle, [
                    $item->contract_allowable_city_id,
                    $item->city_id,
                    $item->contract_allowable_city_name,
                    $item->park_id,
                    $item->same_district_flag == 0 ? '隣接市' : 'その他'
                ]);
            }

            fclose($handle);
        }, 200, $headers);
    }

}