<?php

namespace App\Services\Paddle;

use App\Services\Paddle\Exceptions\PaddleException;
use Illuminate\Http\Client\Factory as HttpFactory;
use Illuminate\Http\Client\PendingRequest;
use Illuminate\Http\Client\RequestException;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;

class PaddleClient
{
    public function __construct(
        private readonly HttpFactory $http,
    ) {}

    public function get(string $endpoint, array $query = []): array
    {
        return $this->send('GET', $endpoint, ['query' => $query]);
    }

    public function post(string $endpoint, array $payload = []): array
    {
        return $this->send('POST', $endpoint, ['json' => $payload]);
    }

    public function patch(string $endpoint, array $payload = []): array
    {
        return $this->send('PATCH', $endpoint, ['json' => $payload]);
    }

    public function delete(string $endpoint, array $payload = []): array
    {
        return $this->send('DELETE', $endpoint, ['json' => $payload]);
    }

    protected function send(string $method, string $endpoint, array $options = []): array
    {
        $request = $this->preparedRequest();

        try {
            $response = $request->send(strtoupper($method), ltrim($endpoint, '/'), $options);
        } catch (RequestException $exception) {
            throw new PaddleException($exception->getMessage(), $exception->response?->status(), $exception->response?->json() ?? []);
        }

        if ($response->failed()) {
            $body = $response->json() ?? [];
            $message = Arr::get($body, 'error.message')
                ?? Arr::get($body, 'message')
                ?? sprintf('Paddle request failed with status %s', $response->status());

            throw new PaddleException($message, $response->status(), $body);
        }

        return $response->json() ?? [];
    }

    protected function preparedRequest(): PendingRequest
    {
        $apiKey = config('paddle.api_key');
        if (! $apiKey) {
            throw new PaddleException('Paddle API key is not configured.');
        }

        $baseUrl = rtrim((string) config('paddle.base_url'), '/');
        $environment = (string) config('paddle.environment', 'production');

        $headers = [
            'User-Agent' => sprintf('FotospielApp/%s PaddleClient', app()->version()),
            'Paddle-Environment' => Str::lower($environment) === 'sandbox' ? 'sandbox' : 'production',
        ];

        return $this->http
            ->baseUrl($baseUrl)
            ->withHeaders($headers)
            ->withToken($apiKey)
            ->acceptJson()
            ->asJson();
    }
}