<?php
/**
 * Read-only lists: sent SMS, replies, connection log; and the block list with add/remove.
 *
 * @package Smsportal
 */

namespace Smsportal\Admin;

use Smsportal\Blocklist;
use Smsportal\ConnectionLog;
use Smsportal\Messages;
use Smsportal\Replies;

defined( 'ABSPATH' ) || exit;

/**
 * Tabs "Sent", "Replies", "Log" and "Blocked", plus status labels shared with the overview.
 */
class ListPages {

	const PER_PAGE  = 50;
	const LOG_LIMIT = 200;

	const BLOCK_ACTION   = 'smsportal_block';
	const UNBLOCK_ACTION = 'smsportal_unblock';

	/**
	 * Object types whose ID means something to the owner (order or booking number).
	 */
	const NUMBERED_OBJECTS = array( 'wc_order', 'amelia_booking' );

	/**
	 * Register hooks.
	 *
	 * @return void
	 */
	public static function register(): void {
		add_action( 'admin_post_' . self::BLOCK_ACTION, array( self::class, 'handle_block' ) );
		add_action( 'admin_post_' . self::UNBLOCK_ACTION, array( self::class, 'handle_unblock' ) );
	}

	/**
	 * Render one of the list tabs.
	 *
	 * @param string $tab sent, replies, log or blocked.
	 * @return void
	 */
	public static function render( string $tab ): void {
		$smsportal_page = self::current_page();
		if ( 'sent' === $tab ) {
			$smsportal_rows  = Messages::recent( self::PER_PAGE, ( $smsportal_page - 1 ) * self::PER_PAGE );
			$smsportal_pages = (int) ceil( Messages::count() / self::PER_PAGE );
			include SMSPORTAL_DIR . 'includes/Admin/views/sent.php';
		} elseif ( 'replies' === $tab ) {
			$smsportal_rows  = Replies::recent( self::PER_PAGE, ( $smsportal_page - 1 ) * self::PER_PAGE );
			$smsportal_pages = (int) ceil( Replies::count() / self::PER_PAGE );
			include SMSPORTAL_DIR . 'includes/Admin/views/replies.php';
		} elseif ( 'log' === $tab ) {
			$smsportal_rows = ConnectionLog::recent( self::LOG_LIMIT );
			include SMSPORTAL_DIR . 'includes/Admin/views/log.php';
		} elseif ( 'blocked' === $tab ) {
			$smsportal_rows = Blocklist::all();
			include SMSPORTAL_DIR . 'includes/Admin/views/blocked.php';
		}
	}

	/**
	 * Readable label of a message status.
	 *
	 * @param string $status Status from Messages::STATUSES.
	 * @return string
	 */
	public static function status_label( string $status ): string {
		$labels = array(
			'queued'        => __( 'Queued', '85pl-android-sms-api' ),
			'sending'       => __( 'Sending', '85pl-android-sms-api' ),
			'waiting_phone' => __( 'Waiting for the phone', '85pl-android-sms-api' ),
			'sent'          => __( 'Sent, waiting for the report', '85pl-android-sms-api' ),
			'delivered'     => __( 'Delivered', '85pl-android-sms-api' ),
			'failed'        => __( 'Failed', '85pl-android-sms-api' ),
			'expired'       => __( 'Expired', '85pl-android-sms-api' ),
			'blocked_stop'  => __( 'Blocked (STOP)', '85pl-android-sms-api' ),
			'limit'         => __( 'Plan limit', '85pl-android-sms-api' ),
			'rate_limited'  => __( 'Stopped by the safety limit', '85pl-android-sms-api' ),
		);
		return $labels[ $status ] ?? $status;
	}

	/**
	 * Readable label of a connection log type.
	 *
	 * @param string $type Type from ConnectionLog::TYPES.
	 * @return string
	 */
	public static function log_type_label( string $type ): string {
		$labels = array(
			'connected'        => __( 'Connected', '85pl-android-sms-api' ),
			'disconnected'     => __( 'Disconnected', '85pl-android-sms-api' ),
			'auth_error'       => __( 'Authorization error', '85pl-android-sms-api' ),
			'webhook_rejected' => __( 'Notification rejected', '85pl-android-sms-api' ),
			'send_error'       => __( 'Sending error', '85pl-android-sms-api' ),
			'rate_limited'     => __( 'Safety limit', '85pl-android-sms-api' ),
		);
		return $labels[ $type ] ?? $type;
	}

	/**
	 * Event of a message, with the order or booking number when there is one.
	 *
	 * @param array<string,string|null> $row Messages row.
	 * @return string
	 */
	public static function event_text( array $row ): string {
		$label = '' !== (string) $row['event_label'] ? (string) $row['event_label'] : __( 'SMS from code', '85pl-android-sms-api' );
		if ( in_array( (string) $row['object_type'], self::NUMBERED_OBJECTS, true ) && '' !== (string) $row['object_id'] ) {
			$label .= ' #' . $row['object_id'];
		}
		return $label;
	}

	/**
	 * Local date and time of a UTC MySQL datetime.
	 *
	 * @param string|null $utc "Y-m-d H:i:s" in UTC.
	 * @return string
	 */
	public static function local_time( ?string $utc ): string {
		$time = strtotime( (string) $utc . ' UTC' );
		if ( false === $time ) {
			return '';
		}
		return (string) wp_date( get_option( 'date_format' ) . ' ' . get_option( 'time_format' ), $time );
	}

	/**
	 * Page links under a list.
	 *
	 * @param int $current Current page.
	 * @param int $total   Number of pages.
	 * @return void
	 */
	public static function pagination( int $current, int $total ): void {
		if ( $total < 2 ) {
			return;
		}
		$links = paginate_links(
			array(
				'base'    => add_query_arg( 'paged', '%#%' ),
				'format'  => '',
				'current' => $current,
				'total'   => $total,
			)
		);
		if ( is_string( $links ) ) {
			echo '<div class="tablenav"><div class="tablenav-pages">' . wp_kses_post( $links ) . '</div></div>';
		}
	}

	/**
	 * Block form handler (admin-post).
	 *
	 * @return void
	 */
	public static function handle_block(): void {
		if ( ! current_user_can( Menu::CAPABILITY ) ) {
			Guard::deny();
		}
		check_admin_referer( self::BLOCK_ACTION );
		self::process_block( wp_unslash( $_POST ) );
		Guard::redirect( Menu::tab_url( 'blocked' ) );
	}

	/**
	 * Unblock form handler (admin-post).
	 *
	 * @return void
	 */
	public static function handle_unblock(): void {
		if ( ! current_user_can( Menu::CAPABILITY ) ) {
			Guard::deny();
		}
		check_admin_referer( self::UNBLOCK_ACTION );
		self::process_unblock( wp_unslash( $_POST ) );
		Guard::redirect( Menu::tab_url( 'blocked' ) );
	}

	/**
	 * Block the posted number.
	 *
	 * @param array<string,mixed> $post Unslashed form fields.
	 * @return void
	 */
	public static function process_block( array $post ): void {
		$phone = isset( $post['phone'] ) && is_string( $post['phone'] ) ? sanitize_text_field( $post['phone'] ) : '';
		if ( Blocklist::add( $phone, 'manual' ) ) {
			Notice::add( 'success', __( 'The number is blocked: this site will not send it SMS.', '85pl-android-sms-api' ) );
			return;
		}
		Notice::add( 'error', __( 'This is not a valid phone number.', '85pl-android-sms-api' ) );
	}

	/**
	 * Unblock the number behind the posted token.
	 *
	 * @param array<string,mixed> $post Unslashed form fields.
	 * @return void
	 */
	public static function process_unblock( array $post ): void {
		$token = isset( $post['token'] ) && is_string( $post['token'] ) ? sanitize_text_field( $post['token'] ) : '';
		if ( '' !== $token && Blocklist::remove_by_token( $token ) ) {
			Notice::add( 'success', __( 'The number is unblocked.', '85pl-android-sms-api' ) );
			return;
		}
		Notice::add( 'error', __( 'This number is not on the list any more.', '85pl-android-sms-api' ) );
	}

	/**
	 * Requested list page (1-based).
	 *
	 * @return int
	 */
	private static function current_page(): int {
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only paging.
		$page = isset( $_GET['paged'] ) ? absint( wp_unslash( $_GET['paged'] ) ) : 1;
		return max( 1, $page );
	}
}