<?php

namespace App\Http\Resources;

use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;

class ExerciseResource extends JsonResource
{
    public function toArray(Request $request): array
    {
        return [
            'id' => $this->id,
            'name' => $this->display_name,
            'original_name' => $this->name,
            'slug' => $this->slug,
            'gif_url' => $this->gif_url,
            'poster_url' => $this->poster_url,
            'instructions' => $this->instructions,
            'body_parts' => $this->whenLoaded('bodyParts', fn () => $this->bodyParts->map(fn ($m) => [
                'id' => $m->id, 'name' => $m->name, 'slug' => $m->slug,
            ])),
            'target_muscles' => $this->whenLoaded('targetMuscles', fn () => $this->targetMuscles->map(fn ($m) => [
                'id' => $m->id, 'name' => $m->name, 'slug' => $m->slug,
            ])),
            'secondary_muscles' => $this->whenLoaded('secondaryMuscles', fn () => $this->secondaryMuscles->map(fn ($m) => [
                'id' => $m->id, 'name' => $m->name, 'slug' => $m->slug,
            ])),
            'equipments' => $this->whenLoaded('equipments', fn () => $this->equipments->map(fn ($m) => [
                'id' => $m->id, 'name' => $m->name, 'slug' => $m->slug,
            ])),
            'is_favorited' => $request->user()
                ? $request->user()->favoriteExercises()->where('exercise_id', $this->id)->exists()
                : false,
        ];
    }
}