<?php

namespace App\SupportedApps\Ghost;

use Exception;

class Ghost extends \App\SupportedApps implements \App\EnhancedApps
{
    public $config;

    public function __construct()
    {
        $this->jar = new \GuzzleHttp\Cookie\CookieJar(); // Uncomment if cookies need to be set
        $this->authorized = false;
    }

    public function test()
    {
        try {
            $this->auth();
            echo "Successfully communicated with the API";
        } catch (Exception $err) {
            echo "Error connecting to Ghost: " . $err->getMessage();
        }
    }

    public function auth()
    {
        if ($this->authorized) {
            return;
        }

        $this->authorized = false;

        $attrs = [
            "cookies" => $this->jar,
            "headers" => ["content-type" => "application/json"],
        ];
        $body["username"] = $this->config->username;
        $body["password"] = $this->config->password;
        $vars = [
            "http_errors" => false,
            "timeout" => 5,
            "body" => json_encode($body),
        ];

        $result = parent::execute(
            $this->url("ghost/api/v3/admin/session"),
            $attrs,
            $vars,
            "POST"
        );

        if (null === $result) {
            throw new Exception("Error contacting the API");
        }

        if ($result->getStatusCode() !== 201) {
            switch ($result->getStatusCode()) {
                case 404:
                    throw new Exception("User is not found");
                case 422:
                    throw new Exception("Invalid credentials");
            }

            throw new Exception("Unknown error");
        }

        $this->authorized = true;
        return $result;
    }

    public function livestats()
    {
        $status = "inactive";

        $this->auth();

        $attrs = [
            "cookies" => $this->jar,
            "headers" => ["content-type" => "application/json"],
        ];
        $result = parent::execute(
            $this->url("ghost/api/v3/admin/posts/"),
            $attrs,
            []
        );
        if (null === $result) {
            throw new Exception("Could not connect to Ghost");
        }

        $response = json_decode($result->getBody());
        $posts = $response->posts;
        $statuses = array_count_values(array_column($posts, "status"));

        $data = [
            "draft" => isset($statuses["draft"]) ? $statuses["draft"] : 0,
            "scheduled" => isset($statuses["scheduled"])
                ? $statuses["scheduled"]
                : 0,
            "published" => isset($statuses["published"])
                ? $statuses["published"]
                : 0,
        ];
        $status = "active";
        return parent::getLiveStats($status, $data);
    }

    public function url($endpoint)
    {
        $api_url = parent::normaliseurl($this->config->url) . $endpoint;
        return $api_url;
    }
}