<?php

namespace App\Comment;

use DateTimeImmutable;
use DateTimeZone;

class EloquentCommentRepository implements CommentRepository
{
    public function create(CreateCommentDto $dto): Comment
    {
        $model = CommentModel::create([
            'post_id' => $dto->postId,
            'user_id' => $dto->userId,
            'body' => $dto->body,
            'created_at' => $dto->createdAt,
        ]);

        return $this->toDomain($model);
    }

    public function find(int $id): ?Comment
    {
        $model = CommentModel::find($id);

        return $model === null ? null : $this->toDomain($model);
    }

    /**
     * @return Comment[]
     */
    public function findByPostId(int $postId): array
    {
        $models = CommentModel::query()
            ->where('post_id', $postId)
            ->orderBy('created_at', 'asc')
            ->get();

        return $models->map(
            function (CommentModel $model) {
                return $this->toDomain($model);
            },
        )->all();
    }

    public function delete(int $id): void
    {
        CommentModel::query()->where('id', $id)->delete();
    }

    private function toDomain(CommentModel $model): Comment
    {
        $utc = new DateTimeZone('UTC');

        return new Comment(
            id: $model->id,
            postId: $model->post_id,
            userId: $model->user_id,
            body: $model->body,
            createdAt: new DateTimeImmutable(
                $model->created_at->toDateTimeString(),
                $utc,
            ),
        );
    }
}