<?php

function fulcrm_apiv2_permission() {
  return array( 'administer fulcrm APIv2' => array( 'title' => t('Administer fulcrm APIv2'),
                                                    'description' => t('Perform main installation/administration tasks for fulcrm APIv2.'),
                                                    ),                          
                );
}

function fulcrm_apiv2_menu() {
    /*
    $items[ 'admin/config/services/fulcrm' ] = array( 'page callback' => 'system_admin_menu_block_page',
                                                      'file' => 'system.admin.inc',
                                                      'file path' => drupal_get_path('module', 'system'),
                                                      'title' => 'fulcrm',
                                                      'description' => 'Configuration integration with fulcrm.org.',
                                                      'position' => 'right',
                                                      'access callback' => 'user_access',
                                                      'access arguments' => array('access administration pages'),
                                                      );
   */
    $items[ 'admin/config/services/fulcrm/apiv2' ] = array( 'page callback' => 'fulcrm_apiv2_admin',
                                                            'file' => 'fulcrm_apiv2.admin.inc',
                                                            'title' => 'fulcrm APIv2',
                                                            'description' => 'Credentials and settings for interacting with fulcrm.org APIv2.',
                                                            'access callback' => 'user_access',
                                                            'access arguments' => array('administer fulcrm APIv2'),
                                                            );

    return $items;
}

function fulcrm_apiv2_http( $method, $object, $data = null ) {
    $curl = curl_init( 'https://fulcrm.org' . $object );
    curl_setopt( $curl, CURLOPT_CUSTOMREQUEST, $method );

    $request_headers = array( 'Authorization: ApiKey ' . variable_get( 'fulcrm_apiv2_user' ) . ':' . variable_get( 'fulcrm_apiv2_key' ),
                              );
    if ( $data !== null ) {
        if ( is_array( $data ) ) {
            $data = json_encode( $data );
            $request_headers[] = 'Content-Type: application/json';
        }
        curl_setopt( $curl, CURLOPT_POSTFIELDS, $data );
        $request_headers[] = 'Content-Length: ' . strlen( $data );
    }

    $request_headers[] = 'X-fulcrm-Client-ID: ' . variable_get( 'fulcrm_apiv2_client_id', $GLOBALS[ 'base_url' ] );

    curl_setopt( $curl, CURLOPT_RETURNTRANSFER, true );
    curl_setopt( $curl, CURLOPT_FOLLOWLOCATION, true );
    curl_setopt( $curl, CURLOPT_HEADER, true );
    curl_setopt( $curl, CURLOPT_HTTPHEADER, $request_headers );
    curl_setopt( $curl, CURLOPT_SSL_VERIFYPEER, true );
    curl_setopt( $curl, CURLOPT_TCP_NODELAY, true );

    $result = curl_exec( $curl );
    $response = curl_getinfo( $curl );
    $header_size = curl_getinfo( $curl, CURLINFO_HEADER_SIZE );
    $header = substr( $result, 0, $header_size );
    $body = substr( $result, $header_size );
    $headers = array();
    foreach ( preg_split( '/[\r\n]+/', $header ) as $headerline ) {
        if ( preg_match( '/([-A-Za-z0-9_]+):\s*(.*)/', $headerline, $matches ) )
            $headers[ $matches[ 1 ] ] = $matches[ 2 ];
    }

    $r = array( 'headers' => $headers,
                'body' => $body,
                'code' => $response[ 'http_code' ],
                );

    if ( $response[ 'http_code' ] == 200 ) {
        $r[ 'success' ] = true; // GET
    } else if ( $response[ 'http_code' ] == 201 ) {
        $r[ 'success' ] = true; // POST
    } else if ( $response[ 'http_code' ] == 202 ) {
        $r[ 'success' ] = true; // PATCH
    } else if ( $response[ 'http_code' ] == 204 ) {
        $r[ 'success' ] = true; // DELETE
    } else {
        $r[ 'success' ] = false;
    }

    return $r;
}

function fulcrm_apiv2_GET( $object ) {
    return fulcrm_apiv2_http( 'GET', $object );
}

function fulcrm_apiv2_POST( $object, $data ) {
    return fulcrm_apiv2_http( 'POST', $object, $data );
}

function fulcrm_apiv2_PUT( $object, $data ) {
    return fulcrm_apiv2_http( 'PUT', $object, $data );
}

function fulcrm_apiv2_PATCH( $object, $data ) {
    return fulcrm_apiv2_http( 'PATCH', $object, $data );
}

function fulcrm_apiv2_DELETE( $object ) {
    return fulcrm_apiv2_http( 'DELETE', $object );
}