<?php
/**
 * Postcode Service - Handles postcode lookup via postcode.tech API
 */

class PostcodeService
{
    /**
     * Lookup address by postcode and house number
     * 
     * @param string $postcode
     * @param string $number
     * @return array
     */
    public static function lookup(string $postcode, string $number): array
    {
        $postcode = str_replace(' ', '', $postcode);
        
        if (empty($postcode) || empty($number)) {
            return [
                'success' => false,
                'error' => 'Postcode en huisnummer zijn verplicht',
                'http_code' => 400
            ];
        }
        
        $url = "https://postcode.tech/api/v1/postcode?postcode={$postcode}&number={$number}";
        
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, [
            "Authorization: Bearer " . $_ENV['POSTCODE_TECH_KEY']
        ]);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
        
        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $curlError = curl_error($ch);
        curl_close($ch);
        
        if ($curlError || $httpCode >= 500) {
            return [
                'success' => false,
                'error' => 'Postcode service niet bereikbaar, vul straat en woonplaats zelf in',
                'details' => $curlError,
                'http_code' => 503
            ];
        }
        
        if ($httpCode >= 400) {
            $decoded = json_decode($response, true);
            $errorMessage = ($decoded && isset($decoded['error'])) 
                ? $decoded['error'] 
                : 'Postcode niet gevonden of ongeldige invoer, vul straat en woonplaats zelf in';
            
            return [
                'success' => false,
                'error' => $errorMessage,
                'http_code' => $httpCode
            ];
        }
        
        $data = json_decode($response, true);
        
        return [
            'success' => true,
            'data' => $data,
            'http_code' => 200
        ];
    }
}