<?php
declare(strict_types=1);

namespace App\Service\Rest\Operation;

use App\Service\Rest\ApiRequestInterface;
use JetBrains\PhpStorm\Pure;
use RuntimeException;
use Symfony\Component\HttpClient\Exception\InvalidArgumentException;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface;
use Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface;
use Symfony\Contracts\HttpClient\Exception\ServerExceptionInterface;
use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
use Symfony\Contracts\HttpClient\ResponseInterface;

/**
 * A single operation, corresponding to a single request
 * to a REST API (Json only)
 */
abstract class BaseRestOperation
{
    public const STATUS_READY = 0;
    public const STATUS_PENDING = 1;
    public const STATUS_DONE = 2;
    public const STATUS_ERROR = 3;

    protected int $status = self::STATUS_READY;
    protected string $label;
    protected string $method;
    protected string $path;
    protected array $parameters;
    protected array $options;
    protected array $initialData;
    protected string $errorMessage = "";

    public function __construct(
        string $label,
        string $method,
        string $path,
        array  $initialData = [],
        array  $parameters = [],
        array  $options = []
    ) {
        $this->label = $label;
        $this->method = $method;
        $this->path = $path;
        $this->initialData = $initialData;
        $this->parameters = $parameters;
        $this->options = $options;
    }

    /**
     * Execute the operation and update its status according to the result
     *
     * @param ApiRequestInterface $apiService
     * @return ResponseInterface
     */
    public function execute(ApiRequestInterface $apiService): ResponseInterface
    {
        $this->status = self::STATUS_PENDING;
        try {
            $response = $apiService->request($this->method, $this->path, $this->parameters, $this->options);

            if ($response->getStatusCode() === 200) {
                $this->status = self::STATUS_DONE;
            } else {
                $this->status = self::STATUS_ERROR;
                $this->errorMessage = 'Error ' . $response->getStatusCode() . ' : ' . $response->getContent();
                throw new HttpException($response->getStatusCode(), $response->getContent());
            }

            return $response;
        } catch (
            HttpException |
            ClientExceptionInterface |
            TransportExceptionInterface |
            RedirectionExceptionInterface |
            ServerExceptionInterface |
            InvalidArgumentException
        $e) {
            $this->status = self::STATUS_ERROR;
            $this->errorMessage = '' . $e;
            throw new RuntimeException($e->getMessage());
        }
    }

    /**
     * @return string
     */
    public function getLabel(): string
    {
        return $this->label;
    }

    /**
     * @return int
     */
    public function getStatus(): int
    {
        return $this->status;
    }

    /**
     * @return string
     */
    public function getErrorMessage(): string
    {
        return $this->errorMessage;
    }

    /**
     * @return string
     */
    public function getMethod(): string
    {
        return $this->method;
    }

    /**
     * @return string
     */
    public function getPath(): string
    {
        return $this->path;
    }

    /**
     * @return array
     */
    public function getInitialData(): array
    {
        return $this->initialData;
    }

    /**
     * @return array
     */
    public function getParameters(): array
    {
        return $this->parameters;
    }

    /**
     * @return array
     */
    public function getOptions(): array
    {
        return $this->options;
    }

    /**
     * Return an array of messages describing the change that this operation will bring
     *
     * @return array
     * @throws \Exception
     */
    abstract public function getChangeLog(): array;

    #[Pure]
    public function __toString(): string {
        return $this->getMethod() . " " . $this->getPath();
    }
}