favorites

app/Http/Controllers/FavoriteController.php

@@ -0,0 +1,47 @@
+<?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 __construct()
+    {
+        $this->middleware('auth');
+    }
+
+    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);
+    }
+}

app/Models/Exercise.php

@@ -39,4 +39,9 @@ class Exercise extends Model
     {
         return $this->hasMany(WorkoutExercise::class);
     }
+
+    public function favoritedBy()
+    {
+        return $this->belongsToMany(User::class, 'exercise_favorites')->withTimestamps();
+    }
 }

app/Models/User.php

@@ -51,4 +51,25 @@ class User extends Authenticatable
     {
         return $this->hasMany(Workout::class);
     }
+
+    public function favoriteExercises()
+    {
+        return $this->belongsToMany(Exercise::class, 'exercise_favorites')->withTimestamps();
+    }
+
+    public function favoriteWorkouts()
+    {
+        return $this->belongsToMany(Workout::class, 'workout_favorites')->withTimestamps();
+    }
+
+    // Helpers
+    public function hasFavoritedExercise(Exercise $exercise): bool
+    {
+        return $this->favoriteExercises()->where('exercise_id', $exercise->id)->exists();
+    }
+
+    public function hasFavoritedWorkout(Workout $workout): bool
+    {
+        return $this->favoriteWorkouts()->where('workout_id', $workout->id)->exists();
+    }
 }

app/Models/Workout.php

@@ -40,4 +40,9 @@ class Workout extends Model
             ->withTimestamps()
             ->orderBy('workout_exercises.position');
     }
+
+    public function favoritedBy()
+    {
+        return $this->belongsToMany(User::class, 'workout_favorites')->withTimestamps();
+    }
 }