<?php

namespace App\Http\Controllers\Admin;

use Illuminate\Support\Facades\Schema;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Validator;

class ReservesController
{
    /**
     * 予約一覧
     * - 基本表: reserve（r）
     * - 付加情報: user（u）, park（p）
     * - 画面変数: $list, $sort, $sort_type（利用者マスタの書式に準拠）
     *
     * reserve テーブルの主な列:
     *  reserve_id, contract_id, user_id, park_id, price_parkplaceid, psection_id,
     *  reserve_date, reserve_start, reserve_end, reserve_cancelday, valid_flag, ope_id など
     *  （DDL は dump の通り）【turn12file6†L15-L37】
     */
    public function list(Request $request)
    {
        // ── 並び順（既定: reserve_id DESC）──────────────────────────────
        $sort = $request->input('sort', 'reserve_id');
        $sortType = strtolower($request->input('sort_type', 'desc')) === 'asc' ? 'asc' : 'desc';

        // ── 絞り込み（必要最低限：利用者／駐輪場／期間）──────────────────
        $userId = trim((string) $request->input('user_id', ''));
        $parkId = trim((string) $request->input('park_id', ''));
        $fromDt = $request->input('reserve_date_from', '');
        $toDt = $request->input('reserve_date_to', '');
        $keyword = trim((string) $request->input('keyword', '')); // 利用者名かな など

        // ── クエリ構築 ────────────────────────────────────────────────
        $q = DB::table('reserve as r')
            ->leftJoin('user as u', 'u.user_id', '=', 'r.user_id')   // user: user_name, user_phonetic 等【turn12file9†L26-L34】
            ->leftJoin('park as p', 'p.park_id', '=', 'r.park_id')   // park: park_name 等【turn12file4†L17-L25】
            ->select([
                'r.reserve_id',
                'r.contract_id',
                'r.user_id',
                'r.park_id',
                'r.price_parkplaceid',
                'r.psection_id',
                'r.reserve_date',
                'r.reserve_start',
                'r.reserve_end',
                'r.reserve_cancelday',
                'r.valid_flag',
                'r.ope_id',
                DB::raw('u.user_name as user_name'),
                DB::raw('u.user_phonetic as user_phonetic'),
                DB::raw('u.user_mobile as user_mobile'),
                DB::raw('p.park_name as park_name'),
            ]);

        if ($userId !== '')
            $q->where('r.user_id', 'like', "%{$userId}%");
        if ($parkId !== '')
            $q->where('r.park_id', 'like', "%{$parkId}%");

        if ($fromDt)
            $q->whereDate('r.reserve_date', '>=', $fromDt);
        if ($toDt)
            $q->whereDate('r.reserve_date', '<=', $toDt);

        if ($keyword !== '') {
            $q->where(function ($w) use ($keyword) {
                $w->where('u.user_name', 'like', "%{$keyword}%")
                    ->orWhere('u.user_phonetic', 'like', "%{$keyword}%");
            });
        }

        // ソート許可カラム（JOIN 先も含む）
        $sortable = [
            'reserve_id',
            'contract_id',
            'user_id',
            'park_id',
            'reserve_date',
            'reserve_start',
            'reserve_end',
            'reserve_cancelday',
            'valid_flag',
            'ope_id',
            'user_name',
            'user_phonetic',
            'user_mobile',
            'park_name',
        ];
        if (!in_array($sort, $sortable, true))
            $sort = 'reserve_id';

        $sortMap = [
            'user_name' => 'u.user_name',
            'user_phonetic' => 'u.user_phonetic',
            'user_mobile' => 'u.user_mobile',
            'park_name' => 'p.park_name',
        ];
        $sortCol = $sortMap[$sort] ?? ('r.' . $sort);

        $list = $q->orderBy($sortCol, $sortType)->paginate(50);

        return view('admin.reserves.list', [
            'list' => $list,
            'sort' => $sort,
            'sort_type' => $sortType,
            // 入力保持
            'user_id' => $userId,
            'park_id' => $parkId,
            'reserve_date_from' => $fromDt,
            'reserve_date_to' => $toDt,
            'keyword' => $keyword,
        ]);
    }

    /**
     * 予約追加（GET: 画面表示 / POST: 登録）
     */
    public function add(Request $request)
    {
        if ($request->isMethod('get')) {
            return view('admin.reserves.add');
        }

        // 予約の最低限バリデーション（必要に応じて追加）
        $v = Validator::make($request->all(), [
            'user_id' => ['required', 'integer'],
            'park_id' => ['required', 'integer'],
            'reserve_date' => ['nullable', 'date'],
            'reserve_start' => ['nullable', 'date'],
            'reserve_end' => ['nullable', 'date'],
        ], [], [
            'user_id' => '利用者ID',
            'park_id' => '駐輪場ID',
        ]);

        if ($v->fails()) {
            return back()->withErrors($v)->withInput();
        }

        DB::table('reserve')->insert([
            'user_id' => (int) $request->input('user_id'),
            'park_id' => (int) $request->input('park_id'),
            'contract_id' => $request->input('contract_id'), // 任意：regular_contract と紐づける場合【turn12file7†L20-L28】
            'price_parkplaceid' => $request->input('price_parkplaceid'),
            'psection_id' => $request->input('psection_id'),
            'reserve_date' => $request->input('reserve_date'),
            'reserve_start' => $request->input('reserve_start'),
            'reserve_end' => $request->input('reserve_end'),
            'valid_flag' => $request->input('valid_flag'),
            'ope_id' => $request->input('ope_id'),
            'created_at' => now(),
            'updated_at' => now(),
        ]);

        return redirect()->route('reserves')->with('success', '予約を登録しました。');
    }

    /**
     * 予約削除
     */
    public function delete(Request $request)
    {

        $normalizeIds = function ($raw) {

            if (is_string($raw)) {
                $raw = explode(',', $raw);
            }
            if (is_array($raw) && count($raw) === 1 && is_string($raw[0]) && str_contains($raw[0], ',')) {
                $raw = explode(',', $raw[0]);
            }
            $ids = array_map('intval', (array) $raw);
            $ids = array_values(array_unique(array_filter($ids, fn($v) => $v > 0)));
            return $ids;
        };

        if ($request->isMethod('get')) {

            $ids = $normalizeIds($request->input('ids', []));

            $rows = [];
            if ($ids) {
                $rows = DB::table('reserve as r')
                    ->leftJoin('user as u', 'u.user_id', '=', 'r.user_id')
                    ->leftJoin('park as p', 'p.park_id', '=', 'r.park_id')
                    ->whereIn('r.reserve_id', $ids)
                    ->select('r.*', 'u.user_name', 'p.park_name')
                    ->get();
            }
            return view('admin.reserves.delete', compact('rows', 'ids'));
        }


        if ($request->post('confirmed')) {
            $ids = $normalizeIds($request->input('ids', []));
            if ($ids) {
                $deleted = DB::table('reserve')->whereIn('reserve_id', $ids)->delete();
                return redirect()->route('reserves')->with(
                    $deleted ? 'success' : 'warning',
                    $deleted ? "{$deleted} 件を削除しました。" : '対象が見つかりませんでした。'
                );
            }
        }

        return redirect()->route('reserves')->with('warning', '削除対象がありません。');
    }


    public function edit(Request $request, $reserve_id)
    {
        $id = (int) $reserve_id;

        // 取得レコード（無ければ404）
        $row = DB::table('reserve')->where('reserve_id', $id)->first();
        if (!$row) {
            abort(404);
        }

        // POST: 更新処理（※reserveテーブルに確実にある列だけ更新）
        if ($request->isMethod('post')) {
            $v = Validator::make($request->all(), [
                'user_id' => ['required', 'integer'],
                'park_id' => ['required', 'integer'],
                'reserve_date' => ['nullable', 'date'],
                'reserve_start' => ['nullable', 'date'],
                'reserve_end' => ['nullable', 'date'],
            ], [], [
                'user_id' => '利用者ID',
                'park_id' => '駐輪場ID',
            ]);

            if ($v->fails()) {
                return back()->withErrors($v)->withInput();
            }

            $data = [
                'contract_id' => $request->input('contract_id'),
                'user_id' => (int) $request->input('user_id'),
                'park_id' => (int) $request->input('park_id'),
                'price_parkplaceid' => $request->input('price_parkplaceid'),
                'psection_id' => $request->input('psection_id'),
                'reserve_date' => $request->input('reserve_date'),
                'reserve_start' => $request->input('reserve_start'),
                'reserve_end' => $request->input('reserve_end'),
                'valid_flag' => $request->input('valid_flag'),
                'ope_id' => $request->input('ope_id'),
                'updated_at' => now(),
            ];
            DB::table('reserve')->where('reserve_id', $id)->update($data);

            return redirect()->route('reserves')->with('success', '予約を更新しました。');
        }

        // GET: 編集画面表示用の各種プルダウン（存在するテーブルだけ読む）
        $userOptions = DB::table('user')
            ->orderBy('user_id', 'asc')
            ->limit(5000)
            ->pluck(DB::raw("concat(user_id, ' ', user_name)"), 'user_id')
            ->toArray();

        $parkOptions = DB::table('park')
            ->orderBy('park_id', 'asc')
            ->limit(5000)
            ->pluck(DB::raw("concat(park_id, ' ', park_name)"), 'park_id')
            ->toArray();

        $userTypeOptions = Schema::hasTable('usertype')
            ? DB::table('usertype')->orderBy('user_categoryid')
                ->pluck('print_name', 'user_categoryid')->toArray()
            : [];

        $parkplaceOptions = Schema::hasTable('price_parkplace')
            ? DB::table('price_parkplace')->orderBy('price_parkplaceid')
                ->pluck('price_parkplaceid', 'price_parkplaceid')->toArray()
            : [];

        $psectionOptions = Schema::hasTable('psection')
            ? DB::table('psection')->orderBy('psection_id')
                ->pluck(
                    Schema::hasColumn('psection', 'psection_name') ? 'psection_name' : 'psection_id',
                    'psection_id'
                )->toArray()
            : [];

        $ptypeOptions = Schema::hasTable('ptype')
            ? DB::table('ptype')->orderBy('ptype_id')
                ->pluck(
                    Schema::hasColumn('ptype', 'ptype_name') ? 'ptype_name' : 'ptype_id',
                    'ptype_id'
                )->toArray()
            : [];


        return view('admin.reserves.edit', compact(
            'row',
            'userOptions',
            'parkOptions',
            'userTypeOptions',
            'parkplaceOptions',
            'psectionOptions',
            'ptypeOptions'
        ));
    }

}