<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Exercise extends Model
{
    protected $fillable = [
        'name',
        'slug',
        'exercise_db_id',
        'gif_url',
        'instructions',
    ];

    // relations
    public function targetMuscles()
    {
        return $this->belongsToMany(Muscle::class, 'exercise_target_muscle');
    }

    public function secondaryMuscles()
    {
        return $this->belongsToMany(Muscle::class, 'exercise_secondary_muscle');
    }

    public function bodyParts()
    {
        return $this->belongsToMany(BodyPart::class, 'body_part_exercise');
    }

    public function equipments()
    {
        return $this->belongsToMany(Equipment::class, 'equipment_exercise');
    }

    public function workoutExercises()
    {
        return $this->hasMany(WorkoutExercise::class);
    }
}