<?php
/**
 * Why a shop leaves: Deactivate on the Plugins screen opens a box with a few reasons, an optional note and an optional
 * email address. "Skip and deactivate" deactivates and sends nothing; "Send and deactivate" sends the reason, the note,
 * the email address if one was typed, the plugin version and the WordPress language to printblob.com (FACTS['feedback'],
 * the only time the free plugin contacts it), then deactivates whatever the answer. For a reason PrintBlob Pro answers,
 * the box names the Pro add-on and links its checkout. The reasons are printblob.com's closed list; their words are here.
 *
 * @package PrintBlob
 */

namespace PrintBlob;

defined( 'ABSPATH' ) || exit;

final class Deactivation_Feedback {

	public const HANDLE = 'printblob-deactivation-feedback';

	/** The box's element id, which its script opens. */
	public const BOX = 'printblob-deactivation-feedback';

	/** Milliseconds "Send and deactivate" waits for printblob.com before deactivating anyway. */
	public const WAIT_MS = 2000;

	public static function register(): void {
		add_action( 'admin_enqueue_scripts', array( __CLASS__, 'enqueue' ) );
		add_action( 'admin_footer-plugins.php', array( __CLASS__, 'box' ) );
	}

	public static function allowed(): bool {
		return current_user_can( 'deactivate_plugin', plugin_basename( FILE ) );
	}

	/**
	 * The box's script and styles, on the Plugins screen only, for a user who can deactivate PrintBlob.
	 *
	 * @param string $hook The admin screen's hook suffix.
	 */
	public static function enqueue( string $hook ): void {
		if ( 'plugins.php' !== $hook || ! self::allowed() ) {
			return;
		}
		$asset = include dirname( FILE ) . '/build/admin/deactivation-feedback.asset.php';
		wp_enqueue_style( self::HANDLE, plugins_url( 'assets/admin/deactivation-feedback.css', FILE ), array(), VERSION );
		wp_enqueue_script(
			self::HANDLE,
			plugins_url( 'build/admin/deactivation-feedback.js', FILE ),
			$asset['dependencies'],
			$asset['version'],
			array(
				'in_footer' => true,
				'strategy'  => 'defer',
			)
		);
		wp_add_inline_script( self::HANDLE, 'window.printblobDeactivationFeedback = ' . wp_json_encode( self::data() ) . ';', 'before' );
	}

	/**
	 * What the box's script needs: where to send, which row's Deactivate opens the box, and the two values sent beside
	 * the form. printblob.com refuses a reason not in its list.
	 *
	 * @return array{url:string, plugin:string, version:string, locale:string, wait:int, box:string}
	 */
	public static function data(): array {
		return array(
			'url'     => FACTS['feedback']['url'],
			'plugin'  => plugin_basename( FILE ),
			'version' => VERSION,
			'locale'  => get_user_locale(),
			'wait'    => self::WAIT_MS,
			'box'     => self::BOX,
		);
	}

	/**
	 * Each reason's words, by its id in FACTS['feedback']['reasons'].
	 *
	 * @return array<string, string>
	 */
	public static function labels(): array {
		return array(
			'temporary'       => __( 'It’s only for a moment: I’m fixing something', 'printblob' ),
			'not-working'     => __( 'It didn’t work on my site', 'printblob' ),
			'hard-to-use'     => __( 'It was hard to set up or use', 'printblob' ),
			'back-or-sleeves' => __( 'I need back or sleeve printing', 'printblob' ),
			'own-products'    => __( 'I need my own products', 'printblob' ),
			'3d'              => __( 'I need a 3D view', 'printblob' ),
			'print-queue'     => __( 'I need a print queue', 'printblob' ),
			'other-plugin'    => __( 'I found another plugin', 'printblob' ),
			'other'           => __( 'Something else', 'printblob' ),
		);
	}

	public static function sent_text(): string {
		return __( 'Nothing is sent unless you press “Send and deactivate”. Then printblob.com receives the reason you chose, your note, your email address if you type one, the PrintBlob version and your WordPress language. Never your site’s address.', 'printblob' );
	}

	/**
	 * The box: a native dialog, closed until Deactivate is clicked. Below the reasons one place shows either a line
	 * about the note or, for a reason PrintBlob Pro answers while it is not active, the Pro add-on: its features for that
	 * reason, its prices and refund, and its checkout from this box. Every one of them is laid out in that place at once,
	 * so choosing a reason moves nothing.
	 *
	 * @param bool $pro_active Whether PrintBlob Pro is active.
	 */
	private static function print_box( bool $pro_active ): void {
		$labels = self::labels();
		$offers = $pro_active ? array() : array_filter( FACTS['feedback']['reasons'], static fn( array $reason ): bool => array() !== $reason['pro'] );
		?>
		<dialog id="<?php echo esc_attr( self::BOX ); ?>" class="printblob-feedback" aria-labelledby="<?php echo esc_attr( self::BOX ); ?>-title" aria-describedby="<?php echo esc_attr( self::BOX ); ?>-sent">
			<form class="printblob-feedback__form">
				<h2 id="<?php echo esc_attr( self::BOX ); ?>-title"><?php esc_html_e( 'Why are you leaving?', 'printblob' ); ?></h2>
				<fieldset class="printblob-feedback__reasons">
					<legend class="screen-reader-text"><?php esc_html_e( 'Why are you leaving?', 'printblob' ); ?></legend>
					<?php foreach ( FACTS['feedback']['reasons'] as $reason ) : ?>
						<label><input type="radio" name="reason" value="<?php echo esc_attr( $reason['id'] ); ?>" required> <?php echo esc_html( $labels[ $reason['id'] ] ); ?></label>
					<?php endforeach; ?>
				</fieldset>
				<div class="printblob-feedback__stack" aria-live="polite">
					<div class="printblob-feedback__layer is-shown" data-printblob-feedback-layer=""><p class="description"><?php esc_html_e( 'Tell us more below if you like: what you needed, or what went wrong.', 'printblob' ); ?></p></div>
					<?php foreach ( $offers as $reason ) : ?>
						<div class="printblob-feedback__layer printblob-feedback__offer" data-printblob-feedback-layer="<?php echo esc_attr( $reason['id'] ); ?>">
							<p>
								<strong><?php esc_html_e( 'PrintBlob Pro add-on:', 'printblob' ); ?></strong>
								<?php echo esc_html( implode( ' ', array_map( static fn( string $id ): string => Pro::feature( $id )['point'] . '.', $reason['pro'] ) ) ); ?>
								<?php echo esc_html( Pro::prices_text() ); ?>. <?php echo esc_html( Pro::refund_text() ); ?>
								<a href="<?php echo esc_url( Pro::checkout_url( 'deactivate' ) ); ?>" target="_blank" rel="noopener"><?php echo esc_html( Pro::offer_text() ); ?></a>
							</p>
							<p class="description"><?php echo esc_html( Pro::separate_text() ); ?></p>
						</div>
					<?php endforeach; ?>
				</div>
				<p><label for="<?php echo esc_attr( self::BOX ); ?>-text"><?php esc_html_e( 'Your note (optional)', 'printblob' ); ?></label><textarea id="<?php echo esc_attr( self::BOX ); ?>-text" name="text" rows="3" maxlength="<?php echo (int) FACTS['feedback']['text_max']; ?>"></textarea></p>
				<p><label for="<?php echo esc_attr( self::BOX ); ?>-email"><?php esc_html_e( 'Your email address, if you would like an answer (optional)', 'printblob' ); ?></label><input id="<?php echo esc_attr( self::BOX ); ?>-email" name="email" type="email" maxlength="<?php echo (int) FACTS['feedback']['email_max']; ?>" autocomplete="email"></p>
				<p id="<?php echo esc_attr( self::BOX ); ?>-sent" class="description"><?php echo esc_html( self::sent_text() ); ?></p>
				<p class="printblob-feedback__buttons"><a class="button" href="<?php echo esc_url( self_admin_url( 'plugins.php' ) ); ?>" data-printblob-feedback-skip><?php esc_html_e( 'Skip and deactivate', 'printblob' ); ?></a> <button type="submit" class="button button-primary"><?php esc_html_e( 'Send and deactivate', 'printblob' ); ?></button></p>
			</form>
		</dialog>
		<?php
	}

	/**
	 * The box as print_box() prints it.
	 *
	 * @param bool|null $pro_active Whether PrintBlob Pro is active; Settings::pro_active() when null.
	 */
	public static function box_html( ?bool $pro_active = null ): string {
		ob_start();
		self::print_box( $pro_active ?? Settings::pro_active() );
		return (string) ob_get_clean();
	}

	public static function box(): void {
		if ( ! self::allowed() ) {
			return;
		}
		self::print_box( Settings::pro_active() );
	}
}