<?php

namespace App\Classes;
use GuzzleHttp\Client;

require __DIR__ . "/../../vendor/autoload.php";

abstract class ApiHandler
{
  protected string $postgrestUrl;
  protected string $postgrestApiKey;

  public function __construct()
  {
    $this->loadEnvironment();
  }

  private function loadEnvironment(): void
  {
    $this->postgrestUrl =
      $_ENV["POSTGREST_URL"] ?? getenv("POSTGREST_URL") ?: "";
    $this->postgrestApiKey =
      $_ENV["POSTGREST_API_KEY"] ?? getenv("POSTGREST_API_KEY") ?: "";
  }

  protected function ensureCliAccess(): void
  {
    if (php_sapi_name() !== "cli" && $_SERVER["REQUEST_METHOD"] !== "POST") {
      $this->redirectNotFound();
    }
  }

  protected function redirectNotFound(): void
  {
    header("Location: /404", true, 302);
    exit();
  }

  protected function fetchFromPostgREST(
    string $endpoint,
    string $query = "",
    string $method = "GET",
    ?array $body = null
  ): array {
    $url = "{$this->postgrestUrl}/{$endpoint}?{$query}";
    $options = [
      "headers" => [
        "Content-Type" => "application/json",
        "Authorization" => "Bearer {$this->postgrestApiKey}",
      ],
    ];

    if ($method === "POST" && $body) $options["json"] = $body;

    $response = (new Client())->request($method, $url, $options);

    return json_decode($response->getBody(), true) ?? [];
  }

  protected function sendResponse(string $message, int $statusCode): void
  {
    http_response_code($statusCode);
    header("Content-Type: application/json");
    echo json_encode(["message" => $message]);
    exit();
  }

  protected function sendErrorResponse(string $message, int $statusCode): void
  {
    $this->sendResponse($message, $statusCode);
  }
}