<?php
/**
 * Poll management screens.
 *
 * @package Poller
 */

namespace BmltEnabled\Poller;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class Admin {

	private Repository $repo;
	private string $list_hook = '';
	private string $edit_hook = '';
	private string $error = '';

	/** @var array<string, mixed>|null */
	private ?array $old = null;

	public function __construct( Repository $repo ) {
		$this->repo = $repo;
	}

	public function hooks(): void {
		add_action( 'admin_menu', [ $this, 'menu' ] );
		add_action( 'admin_enqueue_scripts', [ $this, 'enqueue' ] );
		add_action( 'admin_post_poller_delete_poll', [ $this, 'handle_delete' ] );
		add_action( 'admin_post_poller_set_status', [ $this, 'handle_status' ] );
		add_action( 'admin_post_poller_duplicate_poll', [ $this, 'handle_duplicate' ] );
		add_action( 'admin_post_poller_reset_poll', [ $this, 'handle_reset' ] );
		add_action( 'admin_post_poller_hide_word', [ $this, 'handle_hide_word' ] );
	}

	public function menu(): void {
		$this->list_hook = (string) add_menu_page(
			__( 'Polenta', 'polenta' ),
			__( 'Polenta', 'polenta' ),
			'manage_options',
			'poller',
			[ $this, 'render_list' ],
			'dashicons-forms',
			58
		);
		add_submenu_page(
			'poller',
			__( 'All polls', 'polenta' ),
			__( 'All polls', 'polenta' ),
			'manage_options',
			'poller',
			[ $this, 'render_list' ]
		);
		$this->edit_hook = (string) add_submenu_page(
			'poller',
			__( 'Add poll', 'polenta' ),
			__( 'Add poll', 'polenta' ),
			'manage_options',
			'poller-edit',
			[ $this, 'render_edit' ]
		);
		add_action( 'load-' . $this->edit_hook, [ $this, 'handle_save' ] );
	}

	public function enqueue( string $hook ): void {
		if ( $hook !== $this->list_hook && $hook !== $this->edit_hook ) {
			return;
		}

		wp_enqueue_style( 'poller-fonts', POLLER_URL . 'assets/css/fonts.css', [], POLLER_VERSION );
		wp_enqueue_style( 'poller-admin', POLLER_URL . 'assets/css/admin.css', [ 'poller-fonts' ], POLLER_VERSION );
		wp_enqueue_script( 'poller-admin', POLLER_URL . 'assets/js/admin.js', [], POLLER_VERSION, true );
		wp_localize_script(
			'poller-admin',
			'pollerAdmin',
			[
				'choose' => __( 'Choose a picture', 'polenta' ),
				'use' => __( 'Use this picture', 'polenta' ),
				'copied' => __( 'Copied', 'polenta' ),
			]
		);

		if ( $hook === $this->edit_hook ) {
			wp_enqueue_media();
		}
	}

	public function handle_save(): void {
		$method = isset( $_SERVER['REQUEST_METHOD'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_METHOD'] ) ) : '';
		if ( 'POST' !== $method ) {
			return;
		}

		check_admin_referer( 'poller_save_poll' );
		$this->guard();

		$input = $this->posted_poll();
		$existing = null;
		if ( $input['id'] ) {
			$existing = $this->repo->get_poll( $input['id'] );
			if ( ! $existing ) {
				$this->error = __( 'That poll does not exist.', 'polenta' );
				$this->old = $input;
				return;
			}
		}

		$locked = $existing && $this->repo->ballot_count( (int) $existing['id'] ) > 0;
		$error = $this->validate( $input, (bool) $locked );
		if ( null !== $error ) {
			$this->error = $error;
			$this->old = $input;
			return;
		}

		$fields = [
			'title' => $this->title_or_question( $input ),
			'question' => $input['question'],
			'image_id' => $input['image_id'],
			'status' => $input['status'],
		] + ( $locked ? $this->rule_fields( $existing ) : $this->rule_fields( $this->stored_rules( $input ) ) );

		if ( ! $existing ) {
			try {
				$fields['code'] = $this->repo->next_code();
			} catch ( \RuntimeException $e ) {
				$this->error = __( 'Could not make a poll code. Save again.', 'polenta' );
				$this->old = $input;
				return;
			}
			$id = $this->repo->insert_poll( $fields );
			if ( ! $this->repo->replace_choices( $id, $this->choice_rows( $input ) ) ) {
				$this->repo->delete_poll( $id );
				$this->error = __( 'That poll did not save. Try again.', 'polenta' );
				$this->old = $input;
				return;
			}
			wp_safe_redirect( admin_url( 'admin.php?page=poller-edit&poll=' . $id . '&poller_notice=saved' ) );
			exit;
		}

		$id = (int) $existing['id'];
		$saved = $this->repo->save_poll( $id, $fields, $locked ? null : $this->choice_rows( $input ) );
		$notice = ( ! $locked && ! $saved ) ? 'kept' : 'saved';

		wp_safe_redirect( admin_url( 'admin.php?page=poller-edit&poll=' . $id . '&poller_notice=' . $notice ) );
		exit;
	}

	public function handle_delete(): void {
		$id = absint( $_POST['poll_id'] ?? 0 );
		check_admin_referer( 'poller_delete_poll_' . $id );
		$this->guard();
		if ( $this->repo->get_poll( $id ) ) {
			$this->repo->delete_poll( $id );
		}
		wp_safe_redirect( admin_url( 'admin.php?page=poller&poller_notice=deleted' ) );
		exit;
	}

	public function handle_status(): void {
		$id = absint( $_POST['poll_id'] ?? 0 );
		check_admin_referer( 'poller_status_' . $id );
		$this->guard();
		$status = ( isset( $_POST['status'] ) && 'closed' === $_POST['status'] ) ? 'closed' : 'open';
		if ( $this->repo->get_poll( $id ) ) {
			$this->repo->set_status( $id, $status );
		}
		$notice = 'closed' === $status ? 'closed' : 'opened';
		wp_safe_redirect( admin_url( 'admin.php?page=poller&poller_notice=' . $notice ) );
		exit;
	}

	/**
	 * Copy a poll's setup and choices into a new closed poll, then open the
	 * copy's edit screen.
	 */
	public function handle_duplicate(): void {
		$id = absint( $_POST['poll_id'] ?? 0 );
		check_admin_referer( 'poller_duplicate_poll_' . $id );
		$this->guard();
		$copy = $this->repo->duplicate_poll( $id );
		if ( null === $copy ) {
			wp_safe_redirect( admin_url( 'admin.php?page=poller&poller_notice=not_duplicated' ) );
			exit;
		}
		wp_safe_redirect( admin_url( 'admin.php?page=poller-edit&poll=' . $copy . '&poller_notice=duplicated' ) );
		exit;
	}

	/**
	 * Start a new round on a poll. The live tally starts empty and earlier
	 * rounds stay under Past rounds. Posted from the poll list or the edit
	 * screen, and goes back to the page it came from.
	 */
	public function handle_reset(): void {
		$id = absint( $_POST['poll_id'] ?? 0 );
		check_admin_referer( 'poller_reset_poll_' . $id );
		$this->guard();
		if ( ! $this->repo->reset_poll( $id ) ) {
			wp_safe_redirect( admin_url( 'admin.php?page=poller' ) );
			exit;
		}
		$back = wp_get_referer();
		if ( ! $back ) {
			$back = admin_url( 'admin.php?page=poller' );
		}
		wp_safe_redirect( add_query_arg( 'poller_notice', 'reset', remove_query_arg( 'poller_notice', $back ) ) );
		exit;
	}

	/**
	 * Hide a word cloud entry, or show it again. Posted from the poll's edit
	 * screen or from the results on the public poll page.
	 */
	public function handle_hide_word(): void {
		$id = absint( $_POST['poll_id'] ?? 0 );
		check_admin_referer( 'poller_hide_word_' . $id );
		$this->guard();
		$poll = $this->repo->get_poll( $id );
		// BallotRules::word() cleans the text into the key it was counted under.
		// sanitize_text_field() would turn "<3" into "&lt;3" and miss that key.
		$word = isset( $_POST['word'] ) ? BallotRules::word( wp_unslash( $_POST['word'] ) ) : null; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
		$hide = isset( $_POST['hide'] ) && sanitize_key( wp_unslash( $_POST['hide'] ) ) === '1';
		if ( $poll && 'words' === $poll['selection'] && null !== $word ) {
			$this->repo->set_word_hidden( $id, $word['key'], $hide );
		}
		$back = wp_get_referer();
		if ( ! $back ) {
			$back = $this->edit_url( $id );
		}
		wp_safe_redirect( add_query_arg( 'poller_notice', $hide ? 'hidden' : 'shown', remove_query_arg( 'poller_notice', $back ) ) );
		exit;
	}

	public function render_list(): void {
		$this->guard();
		$polls = $this->repo->list_polls();
		?>
		<div class="wrap">
			<h1 class="wp-heading-inline"><?php esc_html_e( 'Polls', 'polenta' ); ?></h1>
			<a href="<?php echo esc_url( admin_url( 'admin.php?page=poller-edit' ) ); ?>" class="page-title-action"><?php esc_html_e( 'Add poll', 'polenta' ); ?></a>
			<hr class="wp-header-end">
			<?php $this->notices(); ?>
			<?php if ( count( $polls ) === 0 ) : ?>
				<p><?php esc_html_e( 'No polls yet. Add a poll to get a code for the room.', 'polenta' ); ?></p>
			<?php else : ?>
				<table class="widefat striped poller-admin-table">
					<thead>
						<tr>
							<th><?php esc_html_e( 'Poll', 'polenta' ); ?></th>
							<th><?php esc_html_e( 'Code', 'polenta' ); ?></th>
							<th><?php esc_html_e( 'Choices', 'polenta' ); ?></th>
							<th><?php esc_html_e( 'Status', 'polenta' ); ?></th>
							<th><?php esc_html_e( 'Votes', 'polenta' ); ?></th>
							<th><?php esc_html_e( 'Created', 'polenta' ); ?></th>
						</tr>
					</thead>
					<tbody>
						<?php foreach ( $polls as $poll ) : ?>
							<tr>
								<td class="poller-admin-question">
									<strong><a href="<?php echo esc_url( $this->edit_url( (int) $poll['id'] ) ); ?>"><?php echo esc_html( $poll['title'] ); ?></a></strong>
									<?php if ( $poll['title'] !== $poll['question'] ) : ?>
										<div class="description"><?php echo esc_html( $poll['question'] ); ?></div>
									<?php endif; ?>
									<div class="row-actions">
										<span><a href="<?php echo esc_url( $this->edit_url( (int) $poll['id'] ) ); ?>"><?php esc_html_e( 'Edit', 'polenta' ); ?></a> | </span>
										<span><a href="<?php echo esc_url( Plugin::board_url( $poll['code'] ) ); ?>" target="_blank" rel="noopener"><?php esc_html_e( 'Room display', 'polenta' ); ?></a> | </span>
										<span><a href="<?php echo esc_url( Plugin::poll_url( $poll['code'] ) ); ?>" target="_blank" rel="noopener"><?php esc_html_e( 'Open poll', 'polenta' ); ?></a> | </span>
										<span>
											<form class="poller-inline-form" method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>">
												<?php wp_nonce_field( 'poller_status_' . (int) $poll['id'] ); ?>
												<input type="hidden" name="action" value="poller_set_status">
												<input type="hidden" name="poll_id" value="<?php echo esc_attr( (string) $poll['id'] ); ?>">
												<input type="hidden" name="status" value="<?php echo 'open' === $poll['status'] ? 'closed' : 'open'; ?>">
												<button type="submit" class="button-link"><?php echo 'open' === $poll['status'] ? esc_html__( 'Close', 'polenta' ) : esc_html__( 'Reopen', 'polenta' ); ?></button>
											</form>
											|
										</span>
										<span>
											<form class="poller-inline-form" method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>">
												<?php wp_nonce_field( 'poller_duplicate_poll_' . (int) $poll['id'] ); ?>
												<input type="hidden" name="action" value="poller_duplicate_poll">
												<input type="hidden" name="poll_id" value="<?php echo esc_attr( (string) $poll['id'] ); ?>">
												<button type="submit" class="button-link"><?php esc_html_e( 'Duplicate', 'polenta' ); ?></button>
											</form>
											|
										</span>
										<span>
											<?php $this->reset_form( (int) $poll['id'] ); ?>
											|
										</span>
										<span>
											<form class="poller-inline-form" method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" data-poller-confirm="<?php echo esc_attr__( 'Delete this poll and its votes?', 'polenta' ); ?>">
												<?php wp_nonce_field( 'poller_delete_poll_' . (int) $poll['id'] ); ?>
												<input type="hidden" name="action" value="poller_delete_poll">
												<input type="hidden" name="poll_id" value="<?php echo esc_attr( (string) $poll['id'] ); ?>">
												<button type="submit" class="button-link-delete"><?php esc_html_e( 'Delete', 'polenta' ); ?></button>
											</form>
										</span>
									</div>
								</td>
								<td><span class="poller-admin-code-small"><?php echo esc_html( $poll['code'] ); ?></span></td>
								<td>
									<?php
									if ( 'words' !== $poll['selection'] ) {
										echo esc_html( 'image' === $poll['kind'] ? __( 'Pictures', 'polenta' ) : __( 'Text', 'polenta' ) );
										echo esc_html( ', ' );
									}
									echo esc_html( $this->selection_label( $poll ) );
									?>
								</td>
								<td><?php echo 'open' === $poll['status'] ? esc_html__( 'Open', 'polenta' ) : esc_html__( 'Closed', 'polenta' ); ?></td>
								<td><?php echo esc_html( (string) (int) $poll['ballots'] ); ?></td>
								<td><?php echo esc_html( $this->local_time( (string) $poll['created_at'] ) ); ?></td>
							</tr>
						<?php endforeach; ?>
					</tbody>
				</table>
			<?php endif; ?>
		</div>
		<?php
	}

	public function render_edit(): void {
		$this->guard();

		if ( $this->old ) {
			$input = $this->old;
			$poll = $input['id'] ? $this->repo->get_poll( (int) $input['id'] ) : null;
		} else {
			$id = isset( $_GET['poll'] ) ? absint( wp_unslash( $_GET['poll'] ) ) : 0; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			$poll = $id ? $this->repo->get_poll( $id ) : null;
			if ( $id && ! $poll ) {
				wp_die( esc_html__( 'That poll does not exist.', 'polenta' ), '', [ 'response' => 404 ] );
			}
			$input = $poll ? $this->input_from_poll( $poll ) : $this->blank_input();
		}

		$locked = $poll && $this->repo->ballot_count( (int) $poll['id'] ) > 0;
		$choices = $input['choices'];
		if ( ! $locked ) {
			while ( count( $choices ) < 2 ) {
				$choices[] = [
					'label' => '',
					'image_id' => 0,
				];
			}
		}
		$prompt = $this->image_preview( (int) $input['image_id'] );
		?>
		<div class="wrap">
			<h1><?php echo $poll ? esc_html__( 'Edit poll', 'polenta' ) : esc_html__( 'Add poll', 'polenta' ); ?></h1>
			<?php $this->notices(); ?>
			<?php if ( '' !== $this->error ) : ?>
				<div class="notice notice-error"><p><?php echo esc_html( $this->error ); ?></p></div>
			<?php endif; ?>
			<?php if ( $poll ) : ?>
				<p class="poller-admin-code" id="poller-code-text"><?php echo esc_html( $poll['code'] ); ?></p>
				<p>
					<button type="button" class="button" data-poller-copy="poller-code-text"><?php esc_html_e( 'Copy code', 'polenta' ); ?></button>
					<a class="button" href="<?php echo esc_url( Plugin::board_url( $poll['code'] ) ); ?>" target="_blank" rel="noopener"><?php esc_html_e( 'Room display', 'polenta' ); ?></a>
					<a class="button" href="<?php echo esc_url( Plugin::poll_url( $poll['code'] ) ); ?>" target="_blank" rel="noopener"><?php esc_html_e( 'Open poll', 'polenta' ); ?></a>
				</p>
				<p>
					<label for="poller-link"><?php esc_html_e( 'Poll link', 'polenta' ); ?></label><br>
					<input type="text" id="poller-link" class="large-text" readonly value="<?php echo esc_attr( Plugin::poll_url( $poll['code'] ) ); ?>">
					<button type="button" class="button" data-poller-copy="poller-link"><?php esc_html_e( 'Copy link', 'polenta' ); ?></button>
				</p>
				<p class="description">
					<?php
					echo esc_html(
						sprintf(
						/* translators: %s is the page where someone types a poll code. */
							__( 'People can scan the room display, or open %s and enter the code.', 'polenta' ),
							$this->human_join()
						)
					);
					?>
				</p>
			<?php endif; ?>
			<form method="post" action="<?php echo esc_url( admin_url( 'admin.php?page=poller-edit' ) ); ?>">
				<?php wp_nonce_field( 'poller_save_poll' ); ?>
				<input type="hidden" name="poll_id" value="<?php echo esc_attr( (string) (int) $input['id'] ); ?>">
				<table class="form-table" role="presentation">
					<tr>
						<th scope="row"><label for="poller-title"><?php esc_html_e( 'Name', 'polenta' ); ?></label></th>
						<td>
							<input type="text" id="poller-title" name="title" class="regular-text" maxlength="160" value="<?php echo esc_attr( $input['title'] ); ?>">
							<p class="description"><?php esc_html_e( 'Shown only to you, so you can tell polls apart.', 'polenta' ); ?></p>
						</td>
					</tr>
					<tr>
						<th scope="row"><label for="poller-question"><?php esc_html_e( 'Question', 'polenta' ); ?></label></th>
						<td>
							<textarea id="poller-question" name="question" class="large-text" rows="3" maxlength="500" required><?php echo esc_textarea( $input['question'] ); ?></textarea>
						</td>
					</tr>
					<tr>
						<th scope="row"><?php esc_html_e( 'Picture', 'polenta' ); ?></th>
						<td>
							<input type="hidden" id="poller-image-id" name="image_id" value="<?php echo esc_attr( (string) (int) $input['image_id'] ); ?>">
							<span id="poller-prompt-preview">
								<?php if ( '' !== $prompt ) : ?>
									<img src="<?php echo esc_url( $prompt ); ?>" alt="">
								<?php endif; ?>
							</span>
							<button type="button" class="button" id="poller-pick-prompt"><?php esc_html_e( 'Choose picture', 'polenta' ); ?></button>
							<button type="button" class="button-link" id="poller-clear-prompt" <?php echo '' === $prompt ? 'hidden' : ''; ?>><?php esc_html_e( 'Remove picture', 'polenta' ); ?></button>
							<p class="description"><?php esc_html_e( 'Optional. Shown with the question, for a poll about an image.', 'polenta' ); ?></p>
						</td>
					</tr>
					<tr>
						<th scope="row"><?php esc_html_e( 'Choices', 'polenta' ); ?></th>
						<td>
							<?php if ( $locked && 'words' === $poll['selection'] ) : ?>
								<p><?php echo esc_html( ucfirst( $this->selection_label( $poll ) ) ); ?></p>
								<p class="description"><?php esc_html_e( 'People have already answered in this round, so the voting rules stay as they are. You can still edit the question, the picture, and whether the poll is open.', 'polenta' ); ?></p>
								<p><?php $this->reset_button( __( 'Reset votes to change the rules', 'polenta' ) ); ?></p>
							<?php elseif ( $locked ) : ?>
								<p><?php echo esc_html( 'image' === $input['kind'] ? __( 'Picture choices', 'polenta' ) : __( 'Text choices', 'polenta' ) ); ?>,
									<?php echo esc_html( $this->selection_label( $poll ) ); ?></p>
								<ul class="poller-admin-locked">
									<?php foreach ( $choices as $choice ) : ?>
										<li>
											<?php $thumb = 'image' === $input['kind'] ? $this->image_preview( (int) $choice['image_id'] ) : ''; ?>
											<?php if ( '' !== $thumb ) : ?>
												<img src="<?php echo esc_url( $thumb ); ?>" alt="">
											<?php endif; ?>
											<?php echo esc_html( '' !== $choice['label'] ? $choice['label'] : __( 'Picture', 'polenta' ) ); ?>
										</li>
									<?php endforeach; ?>
								</ul>
								<p class="description"><?php esc_html_e( 'People have already voted in this round, so the choices and voting rules stay as they are. You can still edit the question, the picture, and whether the poll is open.', 'polenta' ); ?></p>
								<p><?php $this->reset_button( __( 'Reset votes to change the rules', 'polenta' ) ); ?></p>
							<?php else : ?>
								<fieldset id="poller-kind">
									<legend class="screen-reader-text"><?php esc_html_e( 'Choice type', 'polenta' ); ?></legend>
									<label><input type="radio" name="kind" value="text" <?php checked( $input['kind'], 'text' ); ?>> <?php esc_html_e( 'Text', 'polenta' ); ?></label>
									&nbsp;
									<label><input type="radio" name="kind" value="image" <?php checked( $input['kind'], 'image' ); ?>> <?php esc_html_e( 'Pictures', 'polenta' ); ?></label>
								</fieldset>
								<fieldset>
									<legend class="screen-reader-text"><?php esc_html_e( 'How many answers', 'polenta' ); ?></legend>
									<label><input type="radio" name="selection" value="single" <?php checked( $input['selection'], 'single' ); ?>> <?php esc_html_e( 'One choice', 'polenta' ); ?></label>
									&nbsp;
									<label><input type="radio" name="selection" value="multi" <?php checked( $input['selection'], 'multi' ); ?>> <?php esc_html_e( 'More than one', 'polenta' ); ?></label>
									&nbsp;
									<label><input type="radio" name="selection" value="dots" <?php checked( $input['selection'], 'dots' ); ?>> <?php esc_html_e( 'Dot voting', 'polenta' ); ?></label>
									&nbsp;
									<label><input type="radio" name="selection" value="words" <?php checked( $input['selection'], 'words' ); ?>> <?php esc_html_e( 'Word cloud', 'polenta' ); ?></label>
								</fieldset>
								<fieldset class="poller-admin-dots" id="poller-words-settings">
									<legend><?php esc_html_e( 'Word cloud', 'polenta' ); ?></legend>
									<p class="description"><?php esc_html_e( 'Each person types a few words or short phrases. The room display shows them as a cloud, larger when more people entered the same word. There are no choices to set up.', 'polenta' ); ?></p>
									<p>
										<label for="poller-word-limit"><?php esc_html_e( 'Words for each person', 'polenta' ); ?></label>
										<input type="number" id="poller-word-limit" name="word_limit" class="small-text" min="1" max="<?php echo esc_attr( (string) BallotRules::MAX_WORDS ); ?>" value="<?php echo esc_attr( (string) (int) $input['word_limit'] ); ?>">
									</p>
								</fieldset>
								<fieldset class="poller-admin-dots" id="poller-dots-settings">
									<legend><?php esc_html_e( 'Dot voting', 'polenta' ); ?></legend>
									<p class="description"><?php esc_html_e( 'Each person spreads a set number of dots across the items.', 'polenta' ); ?></p>
									<p>
										<label for="poller-budget"><?php esc_html_e( 'Dots for each person', 'polenta' ); ?></label>
										<input type="number" id="poller-budget" name="budget" class="small-text" min="1" max="<?php echo esc_attr( (string) BallotRules::MAX_BUDGET ); ?>" value="<?php echo esc_attr( (string) (int) $input['budget'] ); ?>">
									</p>
									<p>
										<label><input type="checkbox" id="poller-stacking" name="stacking" value="1" <?php checked( $input['stacking'] ); ?>> <?php esc_html_e( 'Allow more than one dot on an item', 'polenta' ); ?></label>
									</p>
									<p id="poller-per-choice-row">
										<label for="poller-per-choice"><?php esc_html_e( 'Most dots on one item', 'polenta' ); ?></label>
										<input type="number" id="poller-per-choice" name="per_choice" class="small-text" min="2" max="<?php echo esc_attr( (string) BallotRules::MAX_BUDGET ); ?>" value="<?php echo esc_attr( (string) (int) $input['per_choice'] ); ?>">
									</p>
									<p>
										<label><input type="checkbox" name="spend_all" value="1" <?php checked( $input['spend_all'] ); ?>> <?php esc_html_e( 'People must use every dot', 'polenta' ); ?></label>
									</p>
								</fieldset>
								<div id="poller-choice-setup">
								<div id="poller-choices" data-kind="<?php echo esc_attr( $input['kind'] ); ?>" data-max="<?php echo esc_attr( (string) BallotRules::max_choices( $input['selection'] ) ); ?>" data-max-single="<?php echo esc_attr( (string) BallotRules::MAX_CHOICES ); ?>" data-max-dots="<?php echo esc_attr( (string) BallotRules::MAX_DOT_CHOICES ); ?>" data-placeholder-text="<?php echo esc_attr__( 'Choice', 'polenta' ); ?>" data-placeholder-image="<?php echo esc_attr__( 'Caption, optional', 'polenta' ); ?>">
									<?php foreach ( $choices as $choice ) : ?>
										<?php $thumb = $this->image_preview( (int) $choice['image_id'] ); ?>
										<div class="poller-admin-choice">
											<input type="text" class="regular-text" name="choice_label[]" maxlength="160" value="<?php echo esc_attr( $choice['label'] ); ?>" placeholder="<?php echo esc_attr( 'image' === $input['kind'] ? __( 'Caption, optional', 'polenta' ) : __( 'Choice', 'polenta' ) ); ?>">
											<input type="hidden" class="poller-choice-image-id" name="choice_image[]" value="<?php echo esc_attr( (string) (int) $choice['image_id'] ); ?>">
											<button type="button" class="button poller-pick-choice"><?php esc_html_e( 'Picture', 'polenta' ); ?></button>
											<button type="button" class="button-link-delete poller-remove-choice"><?php esc_html_e( 'Remove', 'polenta' ); ?></button>
											<span class="poller-choice-preview">
											<?php
											if ( '' !== $thumb ) :
												?>
												<img src="<?php echo esc_url( $thumb ); ?>" alt=""><?php endif; ?></span>
										</div>
									<?php endforeach; ?>
								</div>
								<p><button type="button" class="button" id="poller-add-choice"><?php esc_html_e( 'Add choice', 'polenta' ); ?></button></p>
								<p>
									<label for="poller-choice-list"><?php esc_html_e( 'Paste a list', 'polenta' ); ?></label><br>
									<textarea id="poller-choice-list" name="choice_list" class="large-text" rows="5"></textarea>
								</p>
								<p class="description"><?php esc_html_e( 'One choice per line. They are added after the choices above when you save.', 'polenta' ); ?></p>
								<template id="poller-choice-template">
									<div class="poller-admin-choice">
										<input type="text" class="regular-text" name="choice_label[]" maxlength="160" value="" placeholder="<?php echo esc_attr__( 'Choice', 'polenta' ); ?>">
										<input type="hidden" class="poller-choice-image-id" name="choice_image[]" value="0">
										<button type="button" class="button poller-pick-choice"><?php esc_html_e( 'Picture', 'polenta' ); ?></button>
										<button type="button" class="button-link-delete poller-remove-choice"><?php esc_html_e( 'Remove', 'polenta' ); ?></button>
										<span class="poller-choice-preview"></span>
									</div>
								</template>
								</div>
							<?php endif; ?>
						</td>
					</tr>
					<tr>
						<th scope="row"><label for="poller-status"><?php esc_html_e( 'Status', 'polenta' ); ?></label></th>
						<td>
							<select id="poller-status" name="status">
								<option value="open" <?php selected( $input['status'], 'open' ); ?>><?php esc_html_e( 'Open', 'polenta' ); ?></option>
								<option value="closed" <?php selected( $input['status'], 'closed' ); ?>><?php esc_html_e( 'Closed', 'polenta' ); ?></option>
							</select>
						</td>
					</tr>
				</table>
				<?php submit_button( $poll ? __( 'Save poll', 'polenta' ) : __( 'Create poll', 'polenta' ) ); ?>
			</form>
			<?php
			if ( $locked ) {
				// Forms cannot nest, so the reset button inside the poll form submits this one.
				$this->reset_form( (int) $poll['id'], 'poller-reset-form' );
			}
			?>
			<?php if ( $poll && 'words' === $poll['selection'] ) : ?>
				<h2 id="poller-words"><?php esc_html_e( 'Words', 'polenta' ); ?></h2>
				<?php $this->render_words( $poll ); ?>
			<?php endif; ?>
			<?php
			if ( $poll ) {
				$this->render_past_rounds( $poll );
			}
			?>
		</div>
		<?php
	}

	/**
	 * The Reset votes form. With an id, the form has no button of its own
	 * and reset_button() submits it from elsewhere on the page.
	 */
	private function reset_form( int $poll_id, string $id = '' ): void {
		?>
		<form class="poller-inline-form" method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" data-poller-confirm="<?php echo esc_attr__( 'Start a new round? Earlier results are kept.', 'polenta' ); ?>"<?php echo '' !== $id ? ' id="' . esc_attr( $id ) . '"' : ''; ?>>
			<?php wp_nonce_field( 'poller_reset_poll_' . $poll_id ); ?>
			<input type="hidden" name="action" value="poller_reset_poll">
			<input type="hidden" name="poll_id" value="<?php echo esc_attr( (string) $poll_id ); ?>">
			<?php if ( '' === $id ) : ?>
				<button type="submit" class="button-link"><?php esc_html_e( 'Reset votes', 'polenta' ); ?></button>
			<?php endif; ?>
		</form>
		<?php
	}

	private function reset_button( string $label ): void {
		echo '<button type="submit" class="button-link" form="poller-reset-form">' . esc_html( $label ) . '</button>';
	}

	private function guard(): void {
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die( esc_html__( 'You do not have permission to manage polls.', 'polenta' ), '', [ 'response' => 403 ] );
		}
	}

	private function notices(): void {
		// Read-only status from an admin redirect. The value is matched against a fixed list.
		if ( ! isset( $_GET['poller_notice'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
			return;
		}
		$key = sanitize_key( wp_unslash( $_GET['poller_notice'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$map = [
			'saved' => __( 'Poll saved.', 'polenta' ),
			'deleted' => __( 'Poll deleted.', 'polenta' ),
			'closed' => __( 'Poll closed.', 'polenta' ),
			'opened' => __( 'Poll opened.', 'polenta' ),
			'duplicated' => __( 'Poll duplicated.', 'polenta' ),
			'reset' => __( 'New round started. Earlier results are kept under Past rounds on the poll.', 'polenta' ),
			'not_duplicated' => __( 'That poll could not be duplicated. Try again.', 'polenta' ),
			'kept' => __( 'People voted while you were editing, so the choices were kept.', 'polenta' ),
			'hidden' => __( 'Word hidden.', 'polenta' ),
			'shown' => __( 'Word shown again.', 'polenta' ),
		];
		if ( ! isset( $map[ $key ] ) ) {
			return;
		}
		$class = in_array( $key, [ 'kept', 'not_duplicated' ], true ) ? 'notice-warning' : 'notice-success';
		echo '<div class="notice ' . esc_attr( $class ) . ' is-dismissible"><p>' . esc_html( $map[ $key ] ) . '</p></div>';
	}

	/**
	 * @return array<string, mixed>
	 */
	private function posted_poll(): array {
		check_admin_referer( 'poller_save_poll' );

		$labels = ( isset( $_POST['choice_label'] ) && is_array( $_POST['choice_label'] ) )
			? map_deep( wp_unslash( $_POST['choice_label'] ), 'sanitize_text_field' )
			: [];
		$images = ( isset( $_POST['choice_image'] ) && is_array( $_POST['choice_image'] ) )
			? map_deep( wp_unslash( $_POST['choice_image'] ), 'absint' )
			: [];
		$count = max( count( $labels ), count( $images ) );
		$choices = [];
		for ( $i = 0; $i < $count; $i++ ) {
			$label_raw = $labels[ $i ] ?? '';
			$image_raw = $images[ $i ] ?? 0;
			if ( ! is_scalar( $label_raw ) || ! is_scalar( $image_raw ) ) {
				continue;
			}
			$label = sanitize_text_field( (string) $label_raw );
			$image_id = absint( $image_raw );
			if ( '' === $label && 0 === $image_id ) {
				continue;
			}
			$choices[] = [
				'label' => $label,
				'image_id' => $image_id,
			];
		}

		$pasted = isset( $_POST['choice_list'] ) ? sanitize_textarea_field( wp_unslash( $_POST['choice_list'] ) ) : '';
		$lines = preg_split( '/\R/', $pasted );
		if ( false === $lines ) {
			$lines = [];
		}
		foreach ( $lines as $line ) {
			$label = sanitize_text_field( $line );
			if ( '' !== $label ) {
				$choices[] = [
					'label' => $label,
					'image_id' => 0,
				];
			}
		}

		$kind = ( isset( $_POST['kind'] ) && sanitize_key( wp_unslash( $_POST['kind'] ) ) === 'image' ) ? 'image' : 'text';
		$selection = isset( $_POST['selection'] ) ? sanitize_key( wp_unslash( $_POST['selection'] ) ) : '';
		if ( ! in_array( $selection, [ 'single', 'multi', 'dots', 'words' ], true ) ) {
			$selection = 'single';
		}
		$budget = isset( $_POST['budget'] ) ? absint( wp_unslash( $_POST['budget'] ) ) : BallotRules::DEFAULT_BUDGET;
		$stacking = ! empty( $_POST['stacking'] );
		$per_choice = isset( $_POST['per_choice'] ) ? absint( wp_unslash( $_POST['per_choice'] ) ) : $budget;
		$word_limit = isset( $_POST['word_limit'] ) ? absint( wp_unslash( $_POST['word_limit'] ) ) : BallotRules::DEFAULT_WORDS;
		$status = ( isset( $_POST['status'] ) && sanitize_key( wp_unslash( $_POST['status'] ) ) === 'closed' ) ? 'closed' : 'open';

		return [
			'id' => isset( $_POST['poll_id'] ) ? absint( wp_unslash( $_POST['poll_id'] ) ) : 0,
			'title' => isset( $_POST['title'] ) ? sanitize_text_field( wp_unslash( $_POST['title'] ) ) : '',
			'question' => isset( $_POST['question'] ) ? sanitize_textarea_field( wp_unslash( $_POST['question'] ) ) : '',
			'image_id' => isset( $_POST['image_id'] ) ? absint( wp_unslash( $_POST['image_id'] ) ) : 0,
			'kind' => $kind,
			'selection' => $selection,
			'budget' => $budget,
			'stacking' => $stacking,
			'per_choice' => $per_choice,
			'spend_all' => ! empty( $_POST['spend_all'] ),
			'word_limit' => $word_limit,
			'status' => $status,
			'choices' => $choices,
		];
	}

	/**
	 * @param array<string, mixed> $input
	 */
	private function validate( array $input, bool $locked ): ?string {
		if ( '' === $input['question'] ) {
			return __( 'Write the question people will see.', 'polenta' );
		}
		if ( $this->length( $input['question'] ) > 500 ) {
			return __( 'Keep the question under 500 characters.', 'polenta' );
		}
		if ( $this->length( $input['title'] ) > 160 ) {
			return __( 'Keep the name under 160 characters.', 'polenta' );
		}
		if ( $input['image_id'] && ! wp_attachment_is_image( $input['image_id'] ) ) {
			return __( 'The question picture needs to be an image.', 'polenta' );
		}
		if ( $locked ) {
			return null;
		}
		if ( 'words' === $input['selection'] ) {
			$limit = (int) $input['word_limit'];
			if ( $limit < 1 || $limit > BallotRules::MAX_WORDS ) {
				return sprintf(
					/* translators: %d is the most words a person can enter. */
					__( 'Let each person enter from 1 to %d words.', 'polenta' ),
					BallotRules::MAX_WORDS
				);
			}
			return null;
		}
		if ( count( $input['choices'] ) < 2 ) {
			return __( 'Add at least two choices.', 'polenta' );
		}
		$max = BallotRules::max_choices( $input['selection'] );
		if ( count( $input['choices'] ) > $max ) {
			return sprintf(
				/* translators: %d is the most choices a poll can have. */
				__( 'A poll like this can have up to %d choices.', 'polenta' ),
				$max
			);
		}
		if ( 'dots' === $input['selection'] ) {
			$error = $this->validate_dots( $input );
			if ( null !== $error ) {
				return $error;
			}
		}
		foreach ( $input['choices'] as $choice ) {
			if ( $this->length( $choice['label'] ) > 160 ) {
				return __( 'Keep each choice under 160 characters.', 'polenta' );
			}
			if ( 'text' === $input['kind'] && '' === $choice['label'] ) {
				return __( 'Each choice needs a label.', 'polenta' );
			}
			if ( 'image' === $input['kind'] && ( ! $choice['image_id'] || ! wp_attachment_is_image( $choice['image_id'] ) ) ) {
				return __( 'Each picture choice needs an image.', 'polenta' );
			}
		}
		return null;
	}

	/**
	 * @param array<string, mixed> $input
	 */
	private function validate_dots( array $input ): ?string {
		$budget = (int) $input['budget'];
		if ( $budget < 1 || $budget > BallotRules::MAX_BUDGET ) {
			return sprintf(
				/* translators: %d is the most dots a person can have. */
				__( 'Give each person from 1 to %d dots.', 'polenta' ),
				BallotRules::MAX_BUDGET
			);
		}
		$rules = $this->stored_rules( $input );
		if ( $input['stacking'] && $budget > 1 && ( $input['per_choice'] < 2 || $input['per_choice'] > $budget ) ) {
			return sprintf(
				/* translators: %d is how many dots each person has. */
				__( 'Set the most dots on one item from 2 to %d.', 'polenta' ),
				$budget
			);
		}
		if ( $rules['spend_all'] && count( $input['choices'] ) * $rules['per_choice'] < $budget ) {
			return __( 'There is no way to use every dot with these items. Add items, allow more dots on one item, or turn off "People must use every dot".', 'polenta' );
		}
		return null;
	}

	/**
	 * Voting rules as they are stored. With stacking off, an item takes 1 dot.
	 * A word cloud keeps its words per person in budget. Other polls store zeros.
	 *
	 * @param array<string, mixed> $input
	 * @return array<string, mixed>
	 */
	private function stored_rules( array $input ): array {
		$rules = [
			'kind' => $input['kind'],
			'selection' => $input['selection'],
			'budget' => 0,
			'per_choice' => 0,
			'spend_all' => false,
		];
		if ( 'words' === $input['selection'] ) {
			$rules['kind'] = 'text';
			$rules['budget'] = (int) $input['word_limit'];
			return $rules;
		}
		if ( 'dots' !== $input['selection'] ) {
			return $rules;
		}
		$budget = (int) $input['budget'];
		$rules['budget'] = $budget;
		$rules['per_choice'] = $input['stacking'] ? max( 1, min( (int) $input['per_choice'], $budget ) ) : 1;
		$rules['spend_all'] = (bool) $input['spend_all'];
		return $rules;
	}

	/**
	 * @param array<string, mixed> $poll
	 * @return array<string, mixed>
	 */
	private function rule_fields( array $poll ): array {
		return [
			'kind' => (string) $poll['kind'],
			'selection' => (string) $poll['selection'],
			'budget' => (int) $poll['budget'],
			'per_choice' => (int) $poll['per_choice'],
			'spend_all' => ! empty( $poll['spend_all'] ),
		];
	}

	/**
	 * @param array<string, mixed> $poll
	 */
	private function selection_label( array $poll ): string {
		if ( 'multi' === $poll['selection'] ) {
			return __( 'more than one', 'polenta' );
		}
		if ( 'words' === $poll['selection'] ) {
			$limit = (int) $poll['budget'];
			return sprintf(
				/* translators: %d is how many words each person can enter. */
				_n( 'word cloud, %d word each', 'word cloud, up to %d words each', $limit, 'polenta' ),
				$limit
			);
		}
		if ( 'dots' !== $poll['selection'] ) {
			return __( 'one', 'polenta' );
		}
		$budget = (int) $poll['budget'];
		$label = sprintf(
			/* translators: %d is how many dots each person has. */
			_n( 'dot voting, %d dot', 'dot voting, %d dots', $budget, 'polenta' ),
			$budget
		);
		if ( (int) $poll['per_choice'] > 1 ) {
			$label .= ', ' . sprintf(
				/* translators: %d is the most dots on one item. */
				__( 'up to %d on one item', 'polenta' ),
				(int) $poll['per_choice']
			);
		}
		if ( ! empty( $poll['spend_all'] ) ) {
			$label .= ', ' . __( 'use every dot', 'polenta' );
		}
		return $label;
	}

	/**
	 * @param array<string, mixed> $input
	 * @return array<int, array{label: string, image_id: int}>
	 */
	private function choice_rows( array $input ): array {
		$rows = [];
		if ( 'words' === $input['selection'] ) {
			return $rows;
		}
		foreach ( $input['choices'] as $choice ) {
			$rows[] = [
				'label' => $choice['label'],
				'image_id' => 'image' === $input['kind'] ? (int) $choice['image_id'] : 0,
			];
		}
		return $rows;
	}

	/**
	 * @param array<string, mixed> $input
	 */
	private function title_or_question( array $input ): string {
		if ( '' !== $input['title'] ) {
			return $input['title'];
		}
		$flat = trim( (string) preg_replace( '/\s+/', ' ', $input['question'] ) );
		if ( function_exists( 'mb_substr' ) ) {
			return mb_substr( $flat, 0, 80 );
		}
		return substr( $flat, 0, 80 );
	}

	/**
	 * @param array<string, mixed> $poll
	 * @return array<string, mixed>
	 */
	private function input_from_poll( array $poll ): array {
		$choices = [];
		foreach ( $this->repo->get_choices( (int) $poll['id'] ) as $choice ) {
			$choices[] = [
				'label' => $choice['label'],
				'image_id' => $choice['image_id'],
			];
		}
		$dots = 'dots' === $poll['selection'];
		return [
			'id' => (int) $poll['id'],
			'title' => (string) $poll['title'],
			'question' => (string) $poll['question'],
			'image_id' => (int) $poll['image_id'],
			'kind' => (string) $poll['kind'],
			'selection' => (string) $poll['selection'],
			'budget' => $dots && (int) $poll['budget'] > 0 ? (int) $poll['budget'] : BallotRules::DEFAULT_BUDGET,
			'stacking' => (int) $poll['per_choice'] > 1,
			'per_choice' => (int) $poll['per_choice'] > 1 ? (int) $poll['per_choice'] : max( 2, $dots ? (int) $poll['budget'] : BallotRules::DEFAULT_BUDGET ),
			'spend_all' => ! empty( $poll['spend_all'] ),
			'word_limit' => 'words' === $poll['selection'] && (int) $poll['budget'] > 0 ? (int) $poll['budget'] : BallotRules::DEFAULT_WORDS,
			'status' => (string) $poll['status'],
			'choices' => $choices,
		];
	}

	/**
	 * @return array<string, mixed>
	 */
	private function blank_input(): array {
		return [
			'id' => 0,
			'title' => '',
			'question' => '',
			'image_id' => 0,
			'kind' => 'text',
			'selection' => 'single',
			'budget' => BallotRules::DEFAULT_BUDGET,
			'stacking' => false,
			'per_choice' => BallotRules::DEFAULT_BUDGET,
			'spend_all' => false,
			'word_limit' => BallotRules::DEFAULT_WORDS,
			'status' => 'open',
			'choices' => [],
		];
	}

	/**
	 * Every word entered on a word cloud poll, with a Hide or Show button.
	 * Rendered after the poll form, since each button is its own small form.
	 *
	 * @param array<string, mixed> $poll
	 */
	private function render_words( array $poll ): void {
		$id = (int) $poll['id'];
		$hidden = $this->repo->hidden_words( $id );
		$words = Tally::words( $this->repo->word_rows( $id ), [], 0 );
		if ( ! $words && ! $hidden ) {
			echo '<p class="description">' . esc_html__( 'No words yet.', 'polenta' ) . '</p>';
			return;
		}
		$is_hidden = array_fill_keys( $hidden, true );
		$seen = [];
		echo '<p class="description">' . esc_html__( 'Hide a word to take it off the room display and the results. People who entered it still see it in their own answers.', 'polenta' ) . '</p>';
		echo '<table class="widefat striped poller-admin-words"><thead><tr><th>' . esc_html__( 'Word', 'polenta' ) . '</th><th>' . esc_html__( 'People', 'polenta' ) . '</th><th><span class="screen-reader-text">' . esc_html__( 'Action', 'polenta' ) . '</span></th></tr></thead><tbody>';
		foreach ( $words as $word ) {
			$seen[ $word['key'] ] = true;
			$this->word_row( $id, $word['text'], (int) $word['count'], isset( $is_hidden[ $word['key'] ] ) );
		}
		foreach ( $hidden as $key ) {
			if ( ! isset( $seen[ $key ] ) ) {
				$this->word_row( $id, $key, 0, true );
			}
		}
		echo '</tbody></table>';
	}

	private function word_row( int $poll_id, string $text, int $count, bool $hidden ): void {
		?>
		<tr<?php echo $hidden ? ' class="poller-word-hidden"' : ''; ?>>
			<td><?php echo esc_html( $text ); ?>
			<?php
			if ( $hidden ) :
				?>
				<em><?php esc_html_e( '(hidden)', 'polenta' ); ?></em><?php endif; ?></td>
			<td><?php echo esc_html( (string) $count ); ?></td>
			<td>
				<form class="poller-inline-form" method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>">
					<?php wp_nonce_field( 'poller_hide_word_' . $poll_id ); ?>
					<input type="hidden" name="action" value="poller_hide_word">
					<input type="hidden" name="poll_id" value="<?php echo esc_attr( (string) $poll_id ); ?>">
					<input type="hidden" name="word" value="<?php echo esc_attr( $text ); ?>">
					<input type="hidden" name="hide" value="<?php echo $hidden ? '0' : '1'; ?>">
					<button type="submit" class="button-link"><?php echo $hidden ? esc_html__( 'Show again', 'polenta' ) : esc_html__( 'Hide', 'polenta' ); ?></button>
				</form>
			</td>
		</tr>
		<?php
	}

	/**
	 * Earlier rounds' results, one collapsed block per round that got answers.
	 * Read only: hiding words works on the current round.
	 *
	 * @param array<string, mixed> $poll
	 */
	private function render_past_rounds( array $poll ): void {
		$id = (int) $poll['id'];
		$rounds = $this->repo->past_rounds( $id );
		if ( ! $rounds ) {
			return;
		}
		echo '<h2 id="poller-rounds">' . esc_html__( 'Past rounds', 'polenta' ) . '</h2>';
		echo '<p class="description">' . esc_html__( 'Reset votes starts a new round. The answers from earlier rounds are kept here.', 'polenta' ) . '</p>';
		foreach ( $rounds as $round ) {
			$number = (int) $round['round'];
			$summary = sprintf(
				/* translators: 1: round number, 2: how many people answered, 3: first answer time, 4: last answer time. */
				_n( 'Round %1$d: %2$d person answered, %3$s to %4$s', 'Round %1$d: %2$d people answered, %3$s to %4$s', (int) $round['ballots'], 'polenta' ),
				$number,
				(int) $round['ballots'],
				$this->local_time( $round['first_at'] ),
				$this->local_time( $round['last_at'] )
			);
			echo '<details class="poller-admin-round" id="' . esc_attr( 'poller-round-' . $number ) . '"><summary>' . esc_html( $summary ) . '</summary>';
			$this->render_round_results( $id, $number );
			echo '</details>';
		}
	}

	/**
	 * One round's results. The voting rules can change between rounds, so a
	 * round with words reads as a word list and any other as choice totals.
	 */
	private function render_round_results( int $poll_id, int $round ): void {
		$rows = $this->repo->word_rows( $poll_id, $round );
		if ( $rows ) {
			$is_hidden = array_fill_keys( $this->repo->hidden_words( $poll_id, $round ), true );
			echo '<table class="widefat striped poller-admin-words"><thead><tr><th>' . esc_html__( 'Word', 'polenta' ) . '</th><th>' . esc_html__( 'People', 'polenta' ) . '</th></tr></thead><tbody>';
			foreach ( Tally::words( $rows, [], 0 ) as $word ) {
				$hidden = isset( $is_hidden[ $word['key'] ] );
				echo '<tr' . ( $hidden ? ' class="poller-word-hidden"' : '' ) . '><td>' . esc_html( $word['text'] );
				if ( $hidden ) {
					echo ' <em>' . esc_html__( '(hidden)', 'polenta' ) . '</em>';
				}
				echo '</td><td>' . esc_html( (string) $word['count'] ) . '</td></tr>';
			}
			echo '</tbody></table>';
			return;
		}

		$counts = $this->repo->choice_counts( $poll_id, $round );
		$choices = [];
		$index = 0;
		foreach ( $this->repo->round_choices( $poll_id, $round ) as $choice ) {
			$index++;
			$label = (string) $choice['label'];
			if ( '' === $label ) {
				$label = sprintf(
					/* translators: %d is the picture number on the ballot. */
					__( 'Picture %d', 'polenta' ),
					$index
				);
			}
			$choices[] = [
				'label' => $label,
				'image_id' => (int) $choice['image_id'],
				'votes' => (int) ( $counts[ (int) $choice['id'] ] ?? 0 ),
			];
		}
		echo '<table class="widefat striped poller-admin-words"><thead><tr><th>' . esc_html__( 'Choice', 'polenta' ) . '</th><th>' . esc_html__( 'Votes', 'polenta' ) . '</th></tr></thead><tbody>';
		foreach ( Tally::rank( $choices ) as $choice ) {
			$thumb = $this->image_preview( $choice['image_id'] );
			echo '<tr><td>';
			if ( '' !== $thumb ) {
				echo '<img src="' . esc_url( $thumb ) . '" alt=""> ';
			}
			echo esc_html( $choice['label'] ) . '</td><td>' . esc_html( (string) $choice['votes'] ) . '</td></tr>';
		}
		echo '</tbody></table>';
	}

	private function image_preview( int $id ): string {
		if ( $id <= 0 ) {
			return '';
		}
		$url = wp_get_attachment_image_url( $id, 'thumbnail' );
		return $url ? $url : '';
	}

	private function edit_url( int $id ): string {
		return admin_url( 'admin.php?page=poller-edit&poll=' . $id );
	}

	private function local_time( string $gmt ): string {
		return get_date_from_gmt( $gmt, get_option( 'date_format' ) . ' ' . get_option( 'time_format' ) );
	}

	private function human_join(): string {
		$human = preg_replace( '#^https?://#', '', untrailingslashit( Plugin::join_url() ) );
		return $human ? $human : Plugin::join_url();
	}

	private function length( string $text ): int {
		return function_exists( 'mb_strlen' ) ? mb_strlen( $text ) : strlen( $text );
	}
}