<?php
/**
 * Functions for general formatting of output.
 *
 * @since 1.4.2
 * @package ucare
 */
namespace ucare;


/**
 * Strip all whitespace from a string and removes unsafe tags.
 *
 * @param string $string
 * @param bool   $remove_breaks
 *
 * @since 1.6.0
 * @return string
 */
function clean_html( $string, $remove_breaks = true ) {
    $string = wp_kses_post( $string );

    if ( $remove_breaks ) {
        $string = preg_replace( '/[\r\n\t ]+/', ' ', $string );
    }

    return trim( $string );
}


/**
 * Prints a human readable time difference.
 *
 * @param string $from The starting time (any strtotime() string)
 * @param string $to   The ending time (any strtotime() string)
 * @param bool $echo   Whether the function should echo its output
 *
 * @since 1.4.2
 * @return string
 */
function time_diff( $from, $to = '', $echo = true ) {

    /**
     * Custom filter output of human_time_diff().
     *
     * @param $since
     * @param $diff
     *
     * @since 1.6.0
     * @return string
     */
    $filter = function ( $since, $diff ) {
        if ( $diff < 60 ) {
            $since = __( 'Seconds ago', 'ucare' );
        } else if ( $diff === 0 ) {
            $since = __( 'Just now', 'ucare' );
        } else {
            $since = sprintf( __( '%s ago', 'ucare' ), $since );
        }

        return $since;
    };

    // Add custom output filter
    add_filter( 'human_time_diff', $filter, 10, 2 );

    $diff = human_time_diff( strtotime( $from ), $to ? strtotime( $to ) : '' );

    // Remove output filter
    remove_filter( 'human_time_diff', $filter, 10 );

    if ( $echo ) {
        esc_html_e( $diff );
    }

    return $diff;

}


/**
 * Get the non-slug readable ticket status.
 *
 * @param int|\WP_Post $ticket  The ticket
 * @param string       $default Output if status inst found
 * @param bool         $echo    Whether the function should echo
 *
 * @since 1.4.2
 * @return string
 */
function ticket_status( $ticket, $default = 'N/A', $echo = true ) {
    $_status = $default;
    $ticket = get_post( $ticket );

    if ( $ticket ) {
        $status   = get_post_meta( $ticket->ID, 'status', true );
        $statuses = get_ticket_statuses();

        if ( array_key_exists( $status, $statuses ) ) {
            $_status = $statuses[ $status ];
        }

        if ( $echo ) {
            esc_html_e( $_status );
        }

    }

    return $_status;

}


/**
 * Get human readable priority value.
 *
 * @param int|\WP_Post $ticket
 * @param mixed        $default
 * @param bool         $echo
 *
 * @since 1.6.0
 * @return int
 */
function ticket_priority( $ticket, $default = 0, $echo = true ) {
    $_priority = $default;
    $ticket = get_post( $ticket );

    if ( $ticket ) {
        $priority   = get_metadata( 'priority', $ticket );
        $priorities = ticket_priorities();

        if ( array_key_exists( $priority, $priorities ) ) {
            $_priority = $priorities[ $priority ];
        }

        if ( $echo ) {
            esc_html_e( $_priority );
        }

    }

    return $_priority;

}


/**
 * Join pieces of a string together.
 *
 * @since 1.5.1
 * @return string
 */
function strcat() {
    return join( '', func_get_args() );
}


/**
 * Echo an escaped url.
 *
 * @param string     $url
 * @param null|array $protocols
 *
 * @since 1.6.0
 * @return void
 */
function esc_url_e( $url, $protocols = null ) {
    echo esc_url( $url, $protocols );
}


/**
 * Parse a list of HTML element attributes.
 *
 * Example:
 *
 * $attr = array(
 *  'id'    => 'my-element-id',
 *  'class' => array( 'my', 'element', 'classes' )
 * );
 *
 * @param array $attributes
 *
 * @since 1.4.2
 * @return string
 */
function parse_attributes( $attributes ) {
    $str = '';

    foreach ( $attributes as $name => $attr ) {
        $str .= $name . '="' . ( is_array( $attr ) ? implode( ' ', $attr ) : esc_attr( $attr ) ) . '" ';
    }
    return $str;
}