<?php
define("DEBUG_MODE", false);

class faceppclientInit {

    private $api_server_url;

    private $auth_params;

    public function __construct() {
        $this->api_server_url = "http://apitest.cn.faceplusplus.com/";
        $this->auth_params = array();
        $this->auth_params['api_key'] = FACEKEY;
        $this->auth_params['api_secret'] = FACESECRET;
    }
    
    /**
     * 检测一张照片中的人脸信息（脸部位置、年龄、种族、性别等等）[通过URL提供图片 ]
     * @param string $urls 待检测图片的URL 
     * @return Ambigous <NULL, mixed>
     */
    public function face_detect($urls = null) {
        return $this->post_call("detection/detect", array(
            "url" => $urls
        ));
    }
    /**
     * 检测给定人脸相应的面部轮廓，五官等关键点的位置
     * @param string $face_id
     * @return Ambigous <NULL, mixed>
     */
    public function face_landmark($face_id = null) {
        return $this->post_call("detection/landmark", array(
            "face_id" => $face_id
        ));
    }
    /**
     * 检测一张照片中的人脸信息（脸部位置、年龄、种族、性别等等）[通过POST方法上传二进制数据]
     * @param string $urls
     * @return Ambigous <NULL, mixed>
     */
    public function face_detect_post($filename) {
        return $this->post_call("detection/detect", array(
            "img" => '@' . $filename
        ));
    }
    /**
     * 检测一张照片中的人脸信息（脸部位置、年龄、种族、性别等等）【通过URL提供图片】
     * @param string $filename URL
     * @param string $offline_result 默认脸区域（四个点）
     * @return Ambigous <NULL, mixed>
     */
    public function face_detect_post_final($filename,$attribute="gender,age,race,smiling,glass,pose,landmark83p",$offline_result="[[72,35,172,135]]") {
        return $this->post_call("detection/detect", array(
            'url' => $filename,
            'attribute' => $attribute,//可以是none或者由逗号分割的属性列表。默认为gender, age, race, smiling。目前支持的属性包括：gender, age, race, smiling, glass, pose
            'mode' => 'offline',//检测模式可以是normal(默认) 或者 oneface 。在oneface模式中，检测器仅找出图片中最大的一张脸。
            'offline_result' => $offline_result,
        ));
    }
    
    // ////////////////////////////////////////////////////////
    // private mathods
    // ////////////////////////////////////////////////////////
    protected function post_call($method, $params = array()) {
        $params = array_merge($this->auth_params, $params);
        $url = $this->api_server_url . "$method";
        if (DEBUG_MODE) {
            echo "REQUEST: $url?" . http_build_query($params) . "\n";
        }
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $data = curl_exec($ch);
        curl_close($ch);
        $result = null;
        if (! empty($data)) {
            if (DEBUG_MODE) {
                echo "RETURN: " . $data . "\n";
            }
            $result = json_decode($data);
        }
        return $result;
    }
}

?>