<?php

namespace App\Http\Controllers;

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

class FavoriteController extends Controller
{
    public function toggleExercise(Exercise $exercise): RedirectResponse
    {
        $user = Auth::user();
        $exists = $user->favoriteExercises()->where('exercise_id', $exercise->id)->exists();
        if ($exists) {
            $user->favoriteExercises()->detach($exercise->id);
            $msg = 'Removed from favorites';
        } else {
            $user->favoriteExercises()->attach($exercise->id);
            $msg = 'Added to favorites';
        }
        return back()->with('status', $msg);
    }

    public function toggleWorkout(Workout $workout): RedirectResponse
    {
        $user = Auth::user();
        if ($workout->user_id && $workout->user_id !== $user->id) {
            // Users can still favorite others' workouts if shared later; for now no restriction besides existence
        }
        $exists = $user->favoriteWorkouts()->where('workout_id', $workout->id)->exists();
        if ($exists) {
            $user->favoriteWorkouts()->detach($workout->id);
            $msg = 'Removed from favorites';
        } else {
            $user->favoriteWorkouts()->attach($workout->id);
            $msg = 'Added to favorites';
        }
        return back()->with('status', $msg);
    }
}