<?php
class Api
{
    /** API URL */
    public $api_url = 'https://7xsmm.com/api/v2';

    /** Your API key (Account page) */
    public $api_key = '';

    /** Add order */
    public function order($data)
    {
        $post = array_merge(['key' => $this->api_key, 'action' => 'add'], $data);
        return json_decode((string) $this->connect($post));
    }

    /** Get order status */
    public function status($order_id)
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'status', 'order' => $order_id]));
    }

    /** Get the status of several orders (up to 100) */
    public function multiStatus($order_ids)
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'status', 'orders' => implode(',', (array) $order_ids)]));
    }

    /** Get services */
    public function services()
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'services']));
    }

    /** Refill an order */
    public function refill(int $orderId)
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'refill', 'order' => $orderId]));
    }

    /** Refill several orders (up to 100) */
    public function multiRefill(array $orderIds)
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'refill', 'orders' => implode(',', $orderIds)]), true);
    }

    /** Get a refill's status */
    public function refillStatus(int $refillId)
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'refill_status', 'refill' => $refillId]));
    }

    /** Get the status of several refills (up to 100) */
    public function multiRefillStatus(array $refillIds)
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'refill_status', 'refills' => implode(',', $refillIds)]), true);
    }

    /** Cancel orders (up to 100) */
    public function cancel(array $orderIds)
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'cancel', 'orders' => implode(',', $orderIds)]), true);
    }

    /** Get balance */
    public function balance()
    {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'balance']));
    }

    private function connect($post)
    {
        $ch = curl_init($this->api_url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post));
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)');
        $result = curl_exec($ch);
        if (curl_errno($ch) != 0 && empty($result)) {
            $result = false;
        }
        curl_close($ch);
        return $result;
    }
}

// Examples

$api = new Api();

$services = $api->services(); # All services
$balance = $api->balance(); # Your balance

// Add order (use the "type" of the service from the services list)

$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100]); # Default
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'runs' => 10, 'interval' => 60]); # Default, drip-feed (services with "dripfeed": true)
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test']); # Package
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'comments' => "good pic\ngreat photo\n:)\n;)"]); # Custom Comments (one per line)
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'usernames' => "test\ntesting"]); # Mentions
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'usernames' => "test, testing", 'hashtags' => "#goodphoto"]); # Mentions with Hashtags
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'usernames' => "test\nexample\nfb"]); # Mentions Custom List
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'hashtag' => "test"]); # Mentions Hashtag
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 1000, 'username' => "test"]); # Mentions User Followers
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 1000, 'media' => "http://example.com/p/Ds2kfEr24Dr"]); # Mentions Media Likers
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'username' => "test"]); # Comment Likes
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'answer_number' => '7']); # Poll
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'username' => 'test', 'comments' => "good pic\ngreat photo"]); # Comment Replies
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'keywords' => "test\ntesting"]); # SEO
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'country' => 'US', 'device' => 1, 'type_of_traffic' => 1, 'google_keyword' => 'test']); # Web Traffic (device 1-5, type_of_traffic 1 Google keyword / 2 referring_url / 3 blank)
$order = $api->order(['service' => 1, 'link' => 'http://example.com/test', 'quantity' => 100, 'groups' => "group1\ngroup2"]); # Invites from Groups
$order = $api->order(['service' => 1, 'username' => 'username', 'min' => 100, 'max' => 110, 'posts' => 5, 'delay' => 30, 'expiry' => '11/11/2027']); # Subscriptions: 5 new posts
$order = $api->order(['service' => 1, 'username' => 'username', 'min' => 100, 'max' => 110, 'old_posts' => 5, 'delay' => 30]); # Subscriptions: the last 5 published posts

$status = $api->status($order->order); # Order status
$statuses = $api->multiStatus([1, 2, 3]); # Several orders
$refill = (array) $api->multiRefill([1, 2]);
$refillIds = array_column($refill, 'refill');
if ($refillIds) {
    $refillStatuses = $api->multiRefillStatus($refillIds);
}
$cancel = $api->cancel([1, 2]); # Cancel orders