<?php
/**
 * Display formatting for prices, dates and times.
 *
 * @package Cleannetic
 */

namespace Cleannetic\Core;

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

class Formatter {

    public static function price( float $amount ): string {
        $settings = Settings::all();
        $number   = number_format( $amount, (int) $settings['price_decimals'], $settings['decimal_separator'], $settings['thousand_separator'] );
        $symbol   = $settings['currency_symbol'];

        switch ( $settings['currency_position'] ) {
            case 'after':
                return $number . $symbol;
            case 'after_space':
                return $number . ' ' . $symbol;
            case 'before_space':
                return $symbol . ' ' . $number;
            default:
                return $symbol . $number;
        }
    }

    /**
     * Currency config shared with JavaScript so client-side prices match PHP.
     */
    public static function currency_config(): array {
        $settings = Settings::all();
        return [
            'code'              => $settings['currency_code'],
            'symbol'            => $settings['currency_symbol'],
            'position'          => $settings['currency_position'],
            'decimals'          => (int) $settings['price_decimals'],
            'decimalSeparator'  => $settings['decimal_separator'],
            'thousandSeparator' => $settings['thousand_separator'],
        ];
    }

    public static function date( string $mysql_datetime ): string {
        return wp_date( get_option( 'date_format' ), self::to_timestamp( $mysql_datetime ) );
    }

    public static function time( string $mysql_datetime ): string {
        return wp_date( get_option( 'time_format' ), self::to_timestamp( $mysql_datetime ) );
    }

    public static function datetime( string $mysql_datetime ): string {
        return self::date( $mysql_datetime ) . ' · ' . self::time( $mysql_datetime );
    }

    public static function duration( int $minutes ): string {
        $hours            = intdiv( $minutes, 60 );
        $remaining_minute = $minutes % 60;

        if ( $hours && $remaining_minute ) {
            /* translators: 1: hours, 2: minutes */
            return sprintf( __( '%1$dh %2$dm', 'cleannetic' ), $hours, $remaining_minute );
        }
        if ( $hours ) {
            /* translators: %d: hours */
            return sprintf( __( '%dh', 'cleannetic' ), $hours );
        }
        /* translators: %d: minutes */
        return sprintf( __( '%dm', 'cleannetic' ), $remaining_minute );
    }

    /**
     * Converts a site-local MySQL datetime into a Unix timestamp.
     */
    public static function to_timestamp( string $mysql_datetime ): int {
        $date = date_create_immutable( $mysql_datetime, wp_timezone() );
        return $date ? $date->getTimestamp() : 0;
    }

    public static function now(): \DateTimeImmutable {
        return new \DateTimeImmutable( 'now', wp_timezone() );
    }

    public static function initials( string $full_name ): string {
        $words    = preg_split( '/\s+/', trim( $full_name ) ) ?: [];
        $initials = '';
        foreach ( array_slice( $words, 0, 2 ) as $word ) {
            $initials .= mb_strtoupper( mb_substr( $word, 0, 1 ) );
        }
        return $initials ?: '?';
    }
}