<?php

namespace App\Services;

class RajaOngkirService
{
    protected $baseUrl;
    protected $apiKey;

    public function __construct()
    {
        $this->baseUrl = config('services.rajaongkir.base_url');
        $this->apiKey = config('services.rajaongkir.api_key');
    }

    public function getProvinces($id = null)
    {
        try {
            $curl = curl_init();

            $url = $this->baseUrl . "/province";
            if ($id) {
                $url .= "?id=" . $id;
            }

            curl_setopt_array($curl, array(
                CURLOPT_URL => $url,
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_ENCODING => "",
                CURLOPT_MAXREDIRS => 10,
                CURLOPT_TIMEOUT => 30,
                CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
                CURLOPT_CUSTOMREQUEST => "GET",
                CURLOPT_HTTPHEADER => array(
                    "key: " . $this->apiKey
                ),
            ));

            $response = curl_exec($curl);
            $err = curl_error($curl);

            curl_close($curl);

            if ($err) {
                throw new \Exception("cURL Error #:" . $err);
            }

            return json_decode($response, true);
        } catch (\Exception $e) {
            throw new \Exception('Gagal mengambil data provinsi: ' . $e->getMessage());
        }
    }

    public function getCities($provinceId = null, $id = null)
    {
        try {
            $curl = curl_init();

            $url = $this->baseUrl . "/city";
            $params = [];
            if ($provinceId) {
                $params[] = "province=" . $provinceId;
            }
            if ($id) {
                $params[] = "id=" . $id;
            }
            if (!empty($params)) {
                $url .= "?" . implode("&", $params);
            }

            curl_setopt_array($curl, array(
                CURLOPT_URL => $url,
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_ENCODING => "",
                CURLOPT_MAXREDIRS => 10,
                CURLOPT_TIMEOUT => 30,
                CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
                CURLOPT_CUSTOMREQUEST => "GET",
                CURLOPT_HTTPHEADER => array(
                    "key: " . $this->apiKey
                ),
            ));

            $response = curl_exec($curl);
            $err = curl_error($curl);

            curl_close($curl);

            if ($err) {
                throw new \Exception("cURL Error #:" . $err);
            }

            return json_decode($response, true);
        } catch (\Exception $e) {
            throw new \Exception('Gagal mengambil data kota: ' . $e->getMessage());
        }
    }

    public function calculateCost($origin, $destination, $weight, $courier)
    {
        try {
            $curl = curl_init();

            curl_setopt_array($curl, array(
                CURLOPT_URL => $this->baseUrl . "/cost",
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_ENCODING => "",
                CURLOPT_MAXREDIRS => 10,
                CURLOPT_TIMEOUT => 30,
                CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
                CURLOPT_CUSTOMREQUEST => "POST",
                CURLOPT_POSTFIELDS => http_build_query([
                    'origin' => $origin,
                    'destination' => $destination,
                    'weight' => $weight,
                    'courier' => $courier
                ]),
                CURLOPT_HTTPHEADER => array(
                    "content-type: application/x-www-form-urlencoded",
                    "key: " . $this->apiKey
                ),
            ));

            $response = curl_exec($curl);
            $err = curl_error($curl);

            curl_close($curl);

            if ($err) {
                throw new \Exception("cURL Error #:" . $err);
            }

            return json_decode($response, true);
        } catch (\Exception $e) {
            throw new \Exception('Gagal menghitung ongkos kirim: ' . $e->getMessage());
        }
    }
}