<?php
/**
 * Merge tag values.
 *
 * @package HostKhata
 */

namespace HostKhata\Domain\Email;

defined( 'ABSPATH' ) || exit;

use HostKhata\Database\Repositories\DomainRepository;
use HostKhata\Database\Repositories\ServiceRepository;
use HostKhata\Settings\Settings;
use HostKhata\Support\Date;

/**
 * Builds the values behind the merge tags for customers, orders and invoices.
 *
 * @since 0.1.0
 */
final class EmailVars {

	/**
	 * Settings.
	 *
	 * @var Settings
	 */
	private $settings;

	/**
	 * Hosting repository.
	 *
	 * @var ServiceRepository
	 */
	private $services;

	/**
	 * Domain repository.
	 *
	 * @var DomainRepository
	 */
	private $domains;

	/**
	 * Constructor.
	 *
	 * @param Settings          $settings Settings.
	 * @param ServiceRepository $services Hosting repository.
	 * @param DomainRepository  $domains  Domain repository.
	 */
	public function __construct( Settings $settings, ServiceRepository $services, DomainRepository $domains ) {
		$this->settings = $settings;
		$this->services = $services;
		$this->domains  = $domains;
	}

	/**
	 * Values every email can use.
	 *
	 * @since 0.1.0
	 *
	 * @param array<string, mixed>|null $customer Customer row, or null.
	 * @return array<string, string>
	 */
	public function base( ?array $customer ): array {
		$name = '';

		if ( $customer ) {
			$name = trim( (string) $customer['first_name'] );
			$name = '' !== $name ? $name : trim( (string) $customer['company'] );
		}

		$portal_id = (int) $this->settings->get( 'portal_page_id' );
		$portal    = $portal_id > 0 ? get_permalink( $portal_id ) : '';

		return array(
			'customer_name'        => '' !== $name ? $name : __( 'there', 'hostkhata' ),
			'business_name'        => (string) $this->settings->get( 'business_name' ),
			'site_name'            => wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES ),
			'site_url'             => home_url( '/' ),
			'portal_url'           => $portal ? $portal : home_url( '/' ),
			'payment_instructions' => (string) $this->settings->get( 'payment_instructions' ),
			'admin_url'            => admin_url( 'admin.php?page=hostkhata' ),
		);
	}

	/**
	 * Example values for every merge tag, for previews and test messages.
	 *
	 * @since 0.1.0
	 *
	 * @return array<string, string>
	 */
	public function sample(): array {
		return array_merge(
			$this->base( null ),
			array(
				'customer_name'   => __( 'Asha', 'hostkhata' ),
				'order_number'    => 'ORD-00042',
				'order_total'     => $this->money( 450000 ),
				'invoice_number'  => 'INV-00123',
				'invoice_total'   => $this->money( 450000 ),
				'invoice_balance' => $this->money( 250000 ),
				'payment_amount'  => $this->money( 200000 ),
				'due_date'        => $this->date( gmdate( 'Y-m-d', time() + 7 * DAY_IN_SECONDS ) ),
				'expires_on'      => $this->date( gmdate( 'Y-m-d', time() + 30 * DAY_IN_SECONDS ) ),
				'invoice_url'     => home_url( '/' ),
				'domain'          => 'example.com',
				'days'            => '7',
				'amount'          => $this->money( 300000 ),
			)
		);
	}

	/**
	 * Values for an order.
	 *
	 * @since 0.1.0
	 *
	 * @param array<string, mixed> $order Order row.
	 * @return array<string, string>
	 */
	public function order( array $order ): array {
		return array(
			'order_number' => (string) $order['order_number'],
			'order_total'  => $this->settings->format_money( (int) $order['total'] ),
			'admin_url'    => admin_url( 'admin.php?page=hostkhata#/orders' ),
		);
	}

	/**
	 * A readable list of the hosting and domain records created for an order.
	 *
	 * @since 0.1.0
	 *
	 * @param int $order_id Order id.
	 * @return array<string, string>
	 */
	public function order_details( int $order_id ): array {
		$lines = array();

		foreach ( $this->services->for_order( $order_id ) as $service ) {
			$parts = array_filter( array( $service['domain'], $service['server_label'], $service['username'] ? __( 'username', 'hostkhata' ) . ': ' . $service['username'] : '' ) );
			/* translators: %s: hosting account details. */
			$lines[] = sprintf( __( 'Hosting: %s', 'hostkhata' ), implode( ' · ', $parts ) );
		}

		foreach ( $this->domains->for_order( $order_id ) as $domain ) {
			/* translators: 1: domain name, 2: expiry date. */
			$lines[] = sprintf( __( 'Domain: %1$s (expires %2$s)', 'hostkhata' ), $domain['domain_name'], $this->date( (string) $domain['expires_on'] ) );
		}

		return array( 'details' => implode( "\n", $lines ) );
	}

	/**
	 * Values for an invoice.
	 *
	 * @since 0.1.0
	 *
	 * @param array<string, mixed> $invoice Invoice row.
	 * @return array<string, string>
	 */
	public function invoice( array $invoice ): array {
		$url = '' !== $invoice['public_token']
			? add_query_arg( 'hostkhata_invoice', $invoice['public_token'], home_url( '/' ) )
			: $this->base( null )['portal_url'];

		return array(
			'invoice_number'  => (string) $invoice['invoice_number'],
			'invoice_total'   => $this->settings->format_money( (int) $invoice['total'] ),
			'invoice_balance' => $this->settings->format_money( (int) $invoice['balance'] ),
			'due_date'        => $this->date( (string) $invoice['due_date'] ),
			'invoice_url'     => $url,
		);
	}

	/**
	 * A date in the site's format.
	 *
	 * @since 0.1.0
	 *
	 * @param string $date `YYYY-MM-DD`.
	 * @return string
	 */
	public function date( string $date ): string {
		return Date::is_valid_date( $date ) ? mysql2date( get_option( 'date_format' ), $date ) : $date;
	}

	/**
	 * Formats an amount.
	 *
	 * @since 0.1.0
	 *
	 * @param int $minor Minor units.
	 * @return string
	 */
	public function money( int $minor ): string {
		return $this->settings->format_money( $minor );
	}
}