<?php

namespace App\Http\Controllers;

use App\Models\Exercise;
use App\Models\ExerciseAlias;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class ExerciseAliasController extends Controller
{
    public function store(Request $request, Exercise $exercise): RedirectResponse
    {
        // Auth is enforced at the route level. Extra guard below for safety.
        if (!Auth::check()) {
            abort(403);
        }

        $data = $request->validate([
            'name' => ['nullable', 'string', 'max:255'],
        ]);

        $name = trim((string) ($data['name'] ?? ''));
        $userId = Auth::id();

        if ($name === '') {
            // Clear alias
            ExerciseAlias::where('user_id', $userId)->where('exercise_id', $exercise->id)->delete();
            return back()->with('status', __('app.exercises.rename_cleared'));
        }

        ExerciseAlias::updateOrCreate(
            ['user_id' => $userId, 'exercise_id' => $exercise->id],
            ['name' => $name]
        );

        return back()->with('status', __('app.exercises.renamed_success'));
    }
}