werx/forms

<?php

namespace werx\Forms;

/**
 * Class Form
 * @package werx\Forms
 */
class Form
{
    public $data;
    public static $instance;

    public function __construct()
    {
        $this->data = [];
        return $this;
    }

    /**
     * @return mixed
     */
    public static function getInstance()
    {
        if (empty(static::$instance)) {
            static::$instance = new Form();
        }

        return static::$instance;
    }

    /**
     *
     */
    public static function clear()
    {
        static::$instance = null;
        $instance = static::getInstance();
        $instance->data = [];
    }

    /**
     * @param array $content
     */
    public static function setData($content = [])
    {
        $instance = static::getInstance();

        if (!empty($content) && is_array($content)) {
            foreach ($content as $key => $value) {
                $instance->data[$key] = $value;
            }
        }
    }

    /**
     * @return mixed
     */
    public static function getData()
    {
        $instance = static::getInstance();

        return $instance->data;
    }

    /**
     * @param null $key
     * @param string $default
     * @param bool $escape
     * @return string
     */
    public static function getValue($key = null, $default = '', $escape = true)
    {
        $instance = static::getInstance();

        // Handle arrays such as checkbox groups.
        $key = str_replace('[]', '', $key);

        $value = array_key_exists($key, $instance->data) ? $instance->data[$key] : $default;

        if ($escape === true) {
            return htmlspecialchars($value, ENT_COMPAT | ENT_SUBSTITUTE, 'UTF-8');
        } else {
            return $value;
        }
    }

    /**
     * @param array $options
     * @return string
     */
    public static function open($options = [])
    {
        $html = [];

        foreach ($options as $key => $value) {
            $html[] = sprintf('%s="%s"', $key, $value);
        }

        return '<form ' . join(' ', $html) . '>';
    }

    /**
     * @return string
     */
    public static function close()
    {
        return '</form>';
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Input
     */
    public static function text($name = null, $id = null)
    {
        return (new Input($name, $id))->attribute('type', 'text');
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Input
     */
    public static function hidden($name = null, $id = null)
    {
        return (new Input($name, $id))->attribute('type', 'hidden');
    }

    /**
     * @param null $name Input Name
     * @param null $id Input Id
     * @return \werx\Forms\Input
     */
    public static function password($name = null, $id = null)
    {
        return (new Input($name, $id))->attribute('type', 'password');
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Input
     */
    public static function email($name = null, $id = null)
    {
        return (new Input($name, $id))->attribute('type', 'email');
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Input
     */
    public static function tel($name = null, $id = null)
    {
        return (new Input($name, $id))->attribute('type', 'tel');
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Input
     */
    public static function url($name = null, $id = null)
    {
        return (new Input($name, $id))->attribute('type', 'url');
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Textarea
     */
    public static function textarea($name = null, $id = null)
    {
        return new Textarea($name, $id);
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Select
     */
    public static function select($name = null, $id = null)
    {
        return new Select($name, $id);
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\SelectState
     */
    public static function selectState($name = null, $id = null)
    {
        return new SelectState($name, $id);
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\SelectCounty
     */
    public static function selectCounty($name = null, $id = null)
    {
        return new SelectCounty($name, $id);
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Submit
     */
    public static function submit($name = null, $id = null)
    {
        return new Submit($name, $id);
    }

    /**
     * @param null $name
     * @param null $id
     * @return \werx\Forms\Button
     */
    public static function button($name = null, $id = null)
    {
        return new Button($name, $id);
    }

    /**
     * @param null $name
     * @return \werx\Forms\Checkbox
     */
    public static function radio($name = null)
    {
        return (new Checkbox($name))->attribute('type', 'radio');
    }

    /**
     * @param null $name
     * @return \werx\Forms\Checkbox
     */
    public static function checkbox($name = null)
    {
        return new Checkbox($name);
    }

    /**
     * @param $key
     * @param null $value
     * @param string $checked_html
     * @return string
     */
    public static function getChecked($key, $value = null, $checked_html = 'checked = "checked"', $default = null)
    {
        $instance = static::getInstance();

        $selected = $instance->getValue($key, $default, false);

        $checked = false;

        if (is_array($selected)) {
            if (in_array($value, $selected)) {
                $checked = true;
            }
        } elseif (!empty($selected) && $selected == $value) {
            $checked = true;
        }

        return $checked ? $checked_html : null;
    }

    /**
     * @param $key
     * @param null $value
     * @param string $checked_html
     * @return string
     */
    public static function getSelected($key, $value = null, $checked_html = 'selected = "selected"', $default = null)
    {
        return static::getChecked($key, $value, $checked_html, $default);
    }

    /**
     * @param null $label
     * @param null $for
     * @return Label
     */
    public static function label($label = null, $for = null)
    {
        return new Label($label, $for);
    }
}