class TilePage extends Page {

    static $db = array(
        "LayoutType" => "Enum('2->1,1->2,3', '2->1')"
    );

    static $has_one = array(
        "BackgroundImage" => "Image"
    );

    static $has_many = array(
        "Tiles" => "Tile",
        "Tiles.ParentPage" => "Tile"
    );

    public function getCMSFields() {
        $fields = parent::getCMSFields();
        $fields->removeByName("Content");
        $fields->addFieldToTab("Root.Main", new UploadField("BackgroundImage", "Background Image"), "Metadata");
        $fields->addFieldToTab("Root.Tiles", new DropdownField("LayoutType", "Layout Type (LeftSize -> RightSize)", singleton("TilePage")->dbObject("LayoutType")->enumValues()));
        $fields->addFieldToTab("Root.Tiles", new GridField("Tiles", "Available Tiles", $this->Tiles(), GridFieldConfig_RecordEditor::create()));
        return $fields;
    }
}


class Tile extends DataObject {

    static $db = array(
        "Name" => "Varchar",
        "HorizontalSize" => "Int",
        "VerticalSize" => "Int",
        "Location" => "Enum('Left, Right', 'Left')",
        "Visible" => "Boolean",
        "Order" => "Int",
        "LinkToURL" => "Varchar(255)"
    );

    static $has_one = array(
        "BackgroundImage" => "Image",
        "ParentPage" => "Page",
        "LinkToPage" => "Page"
    );

    static $summary_fields = array(
        "Name", "Location", "Visible", "Order"
    );

    static $defaults = array(
        "Visible" => true
    );

    public function getCMSFields() {
        return new FieldList(
            new TextField("Name", "Name"),
            new DropdownField("ClassName", "Tile Type", array(
                "BasicTile" => "Basic Tile",
                "Tile" => "Image Only Tile",
                "ImageRotaterTile" => "Image Rotater Tile",
                "TextRotaterTile" => "Text Rotater Tile"
            )),
            new CheckboxField("Visible", "Visible"),
            new TextField("HorizontalSize", "Horizontal Tile Size (1, 2 or 3)", "", 1),
            new TextField("VerticalSize", "Vertical Tile Size (1, 2 or 3)", "", 1),
            new DropdownField("Location", "Location", singleton("Tile")->dbObject("Location")->enumValues()),
            new UploadField("BackgroundImage", "Background Image"),
            new TextField("Order", "Order (lower numbers will go first)"),
            new TreeDropdownField("LinkToPage", "Link to Page", "SiteTree"),
            new TextField("LinkToURL", "Link to URL (overrides Link to Page)")
        );
    }
}