<?php
class Vision_Validation_date extends Vision_Options {
	
	/**
	 * Field Constructor.
	 *
	 * Required - must call the parent constructor, then assign field and value to vars, and obviously call the render field function
	 *
	 * @since Vision_Options 1.0.0
	*/
	function __construct($field, $value, $current) {
		parent::__construct();
		$this->field = $field;
		$this->field['msg'] = (isset($this->field['msg'])) ? $this->field['msg'] : __('This field must be a valid date.', Vision_TEXT_DOMAIN);
		$this->value = $value;
		$this->current = $current;
		$this->validate();
	}

	/**
	 * Field Render Function.
	 *
	 * Takes the vars and outputs the HTML for the field in the settings
	 *
	 * @since Vision_Options 1.0.0
	*/
	function validate() {
		$string = str_replace('/', '', $this->value);

		if(!is_numeric($string)) {
			$this->value = (isset($this->current)) ? $this->current : '';
			$this->error = $this->field;
			return;
		}

		if($this->value[2] != '/') {
			$this->value = (isset($this->current)) ? $this->current : '';
			$this->error = $this->field;
			return;
		}

		if($this->value[5] != '/') {
			$this->value = (isset($this->current)) ? $this->current : '';
			$this->error = $this->field;
		}
	}
}