<?php
namespace Photonic_Plugin\Admin\Wizard;

abstract class Source {
	protected $default_under, $default_from_settings, $allowed_image_sizes, $column_options, $provider,
		$error_not_found, $error_mandatory;

	protected function __construct() {
		$this->default_under = esc_html__('Default settings can be configured under: %s', 'photonic');
		$this->default_from_settings = esc_html__('Default from settings', 'photonic');
		$this->allowed_image_sizes = [];
		$this->column_options = [
			'desc' => esc_html__('Number of columns in output', 'photonic'),
			'type' => 'select',
			'options' => [
				'' => '',
				'auto' => esc_html__('Automatic (Photonic calculates the columns)', 'photonic'),
				'1' => 1,
				'2' => 2,
				'3' => 3,
				'4' => 4,
				'5' => 5,
				'6' => 6,
				'7' => 7,
				'8' => 8,
				'9' => 9,
				'10' => 10,
				'11' => 11,
				'12' => 12,
				'13' => 13,
				'14' => 14,
				'15' => 15,
				'16' => 16,
				'17' => 17,
				'18' => 18,
				'19' => 19,
				'20' => 20,
			]
		];

		$this->error_not_found = esc_html__('Not found.', 'photonic');
		$this->error_mandatory = esc_html__('Please fill the mandatory fields. Mandatory fields are marked with a red "*".', 'photonic');
	}

	/**
	 * Gets contents of the second screen for a given provider. The second screen contains the type of content to display for a source.
	 * E.g. "Multiple photos", "Photos in an album" etc.
	 *
	 * @return mixed
	 */
	abstract function get_screen_2();

	/**
	 * Gets contents of the third screen for a given provider. This screen contains the photos, albums etc. resultant from Screen 2.
	 *
	 * @return mixed
	 */
	abstract function get_screen_3();

	/**
	 * Shows the layout selection screen.
	 *
	 * @return mixed
	 */
	abstract function get_screen_4();

	/**
	 * Shows layout-specific options for the gallery.
	 *
	 * @return mixed
	 */
	abstract function get_screen_5();

	/**
	 * Add the thumbnail sizes to the screen for the square, circle and slideshow layouts
	 *
	 * @return mixed
	 */
	abstract function get_square_size_options();

	/**
	 * Add the tile sizes to the screen for the random (justified grid), masonry and mosaic layouts
	 *
	 * @return mixed
	 */
	abstract function get_random_size_options();

	/**
	 * Makes a request to a provider to fetch the contents to be displayed within the Wizard.
	 *
	 * @param $display_type
	 * @param $for
	 * @param $flattened_fields
	 * @return mixed
	 */
	abstract function make_request($display_type, $for, $flattened_fields);

	/**
	 * Parses the response from the provider when then wizard tries to get content from it.
	 *
	 * @param $response
	 * @param $display_type
	 * @param null $url
	 * @param array $pagination
	 * @return mixed
	 */
	abstract function process_response($response, $display_type, $url = null, &$pagination = []);

	/**
	 * @param $display_type
	 * @return mixed
	 */
	abstract function construct_shortcode_from_screen_selections($display_type);

	/**
	 * @return mixed
	 */
	abstract function deconstruct_shortcode_to_screen_selections($input);

	private function get_title_position_options() {
		$ret = [
			'' => $this->default_from_settings,
			'regular' => esc_html__('Normal title display using the HTML "title" attribute', 'photonic'),
			'below' => esc_html__('Below the thumbnail', 'photonic'),
			'tooltip' => esc_html__('Using a JavaScript tooltip', 'photonic'),
			'hover-slideup-show' => esc_html__('Slide up from bottom upon hover', 'photonic'),
			'slideup-stick' => esc_html__('Cover the lower portion always', 'photonic'),
			'none' => esc_html__('No title', 'photonic'),
		];

		return [
			'desc' => esc_html__('How do you want the title?', 'photonic'),
			'type' => 'select',
			'options' => $ret,
			'std' => '',
		];
	}

	function get_slideshow_options() {
		global $photonic_thumbnail_style;
		return [
			'slideshow-style' => [
				'desc' => esc_html__('Slideshow display style', 'photonic'),
				'type' => 'image-select',
				'options' => [
					'strip-below' => esc_html__('Thumbnail strip or buttons below slideshow', 'photonic'),
					'strip-above' => esc_html__('Thumbnail strip above slideshow', 'photonic'),
					'strip-right' => esc_html__('Thumbnail strip to the right of slideshow', 'photonic'),
					'no-strip' => esc_html__('No thumbnails or buttons for the slideshow', 'photonic'),
				],
				'std' => $photonic_thumbnail_style,
			],
			'strip-style' => [
				'desc' => esc_html__('Thumbnails or buttons for the strip?', 'photonic'),
				'type' => 'image-select',
				'options' => [
					'thumbs' => esc_html__('Thumbnails', 'photonic'),
					'button' => esc_html__('Buttons', 'photonic'),
				],
				'hint' => esc_html__('If you choose "Buttons" those are only shown below the slideshow.', 'photonic'),
				'std' => 'thumbs',
			],
			'controls' => [
				'desc' => esc_html__('Slideshow Controls', 'photonic'),
				'type' => 'select',
				'options' => [
					'hide' => esc_html__('Hide', 'photonic'),
					'show' => esc_html__('Show', 'photonic'),
				],
				'hint' => esc_html__('Shows Previous and Next buttons on the slideshow.', 'photonic'),
			],
			'fx' => [
				'desc' => esc_html__('Slideshow Effects', 'photonic'),
				'type' => 'select',
				'options' => [
					'fade' => esc_html__('Fade', 'photonic'),
					'slide' => esc_html__('Slide', 'photonic'),
				],
				'hint' => esc_html__('Determines if a photo in a slideshow should fade in or slide in.', 'photonic')
			],
			'timeout' => [
				'desc' => esc_html__('Time between slides in ms', 'photonic'),
				'type' => 'text',
				'std' => '',
				'hint' => esc_html__('Please enter numbers only', 'photonic')
			],
			'speed' => [
				'desc' => esc_html__('Time for each transition in ms', 'photonic'),
				'type' => 'text',
				'std' => '',
				'hint' => esc_html__('How fast do you want the fade or slide effect to happen?', 'photonic')
			],
			'pause' => [
				'desc' => esc_html__('Pause upon hover?', 'photonic'),
				'type' => 'select',
				'options' => [
					'0' => esc_html__('No', 'photonic'),
					'1' => esc_html__('Yes', 'photonic'),
				],
				'hint' => esc_html__('Should the slideshow pause when you hover over it?', 'photonic')
			],
			'columns' => [
				'desc' => esc_html__('Number of columns in slideshow', 'photonic'),
				'type' => 'select',
				'options' => [
					'' => '',
					'1' => 1,
					'2' => 2,
					'3' => 3,
					'4' => 4,
					'5' => 5,
					'6' => 6,
					'7' => 7,
					'8' => 8,
					'9' => 9,
					'10' => 10,
				],
				'hint' => esc_html__('Pick > 1 for a carousel', 'photonic'),
			],
		];
	}

	function get_square_layout_options() {
		return [
			'columns' => $this->column_options,
			$this->provider => $this->get_square_size_options(),
			'title_position' => $this->get_title_position_options(),
		];
	}

	function get_random_layout_options() {
		return [
			$this->provider => $this->get_random_size_options(),
			'title_position' => $this->get_title_position_options(),
		];
	}

	function get_column_options() {
		return $this->column_options;
	}
}