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<?php
/**
 * The osu! signature object.
 *
 * @author Lemmmy
 */
class OsuSignature extends Signature
{
    /**
     * The user data of the requested signature's subject
     *
     * @var array
     */
    private $user;

    /**
     * The width of the signature excluding the margin and stroke width
     * calculated by the size of all components.
     *
     * @var int
     */
    private $baseWidth;

    /**
     * The height of the signature excluding the margin and stroke width
     * calculated by the size of all components.
     *
     * @var int
     */
    private $baseHeight;

    /**
     * The template this signature will use for its components.
     *
     * @var Template
     */
    private $template;

    /**
     * The hex colour of the signature.
     *
     * @var string
     */
    private $hexColour;

    /**
     * Creates a new osu! signature.
     *
     * @param array $user The user whom the signature will be the signature's subject
     * @param Template $template The template this signature will be based on.
     */
    public function __construct($user, $template) {
        $this->user = $user;
        $this->template = new $template($this);

        $width = $this->template->calculateBaseWidth() + ($this->template->getImageMarginWidth());
        $height = $this->template->calculateBaseHeight() + ($this->template->getImageMarginWidth());

        parent::__construct($width, $height);
    }

    /**
     * @return array The user data of the requested signature's subject
     */
    public function getUser()
    {
        return $this->user;
    }

    /**
     * @return string
     */
    public function getHexColour()
    {
        return $this->hexColour;
    }

    public function generate($hexColour = "#bb1177") {
        /*
            The inner width and height of the signature card.
            This excludes the margins.
        */
        $this->baseWidth = $this->template->calculateBaseWidth();
        $this->baseHeight = $this->template->calculateBaseHeight();

        $this->hexColour = $hexColour;

        $this->template->getCard()->draw($this->canvas, $hexColour, $this->template, $this->baseWidth, $this->baseHeight);
        $this->template->drawComponents();

        // Sets the headers and echoes the image
        $this->output();
    }
}