<?php
/**
 * Local mock API client.
 *
 * @package IntelTele
 */

namespace IntelTele\Api;

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

final class MockClient implements ClientInterface {
	/**
	 * Settings.
	 *
	 * @var array<string,mixed>
	 */
	private $settings;

	/**
	 * Constructor.
	 *
	 * @param array<string,mixed> $settings Settings.
	 */
	public function __construct( array $settings ) {
		$this->settings = $settings;
	}

	/**
	 * Get account balance.
	 */
	public function get_balance(): ApiResult {
		return ApiResult::success(
			array(
				'balance' => '100.00',
			),
			200,
			array( 'mock' => true )
		);
	}

	/**
	 * Send SMS.
	 *
	 * @param string   $message Message text.
	 * @param string[] $phones Recipient phones.
	 * @param array<string,mixed> $options Extra options.
	 */
	public function send_sms( string $message, array $phones, array $options = array() ): ApiResult {
		return $this->mock_send( 'sms', $message, $phones );
	}

	/**
	 * Send Viber.
	 *
	 * @param string   $message Message text.
	 * @param string[] $phones Recipient phones.
	 * @param array<string,mixed> $options Extra options.
	 */
	public function send_viber( string $message, array $phones, array $options = array() ): ApiResult {
		return $this->mock_send( 'viber', $message, $phones );
	}

	/**
	 * Get SMS statuses.
	 *
	 * @param string[] $message_ids Message IDs.
	 */
	public function get_sms_statuses( array $message_ids ): ApiResult {
		return $this->mock_statuses( $message_ids, 'delivrd' );
	}

	/**
	 * Get Viber statuses.
	 *
	 * @param string[] $message_ids Message IDs.
	 */
	public function get_viber_statuses( array $message_ids ): ApiResult {
		return $this->mock_statuses( $message_ids, 'delivrd' );
	}

	/**
	 * Mock send response.
	 *
	 * @param string   $channel Channel.
	 * @param string   $message Message.
	 * @param string[] $phones Phones.
	 */
	private function mock_send( string $channel, string $message, array $phones ): ApiResult {
		$items = array();

		foreach ( $phones as $phone ) {
			$items[] = array(
				'message_id' => wp_generate_uuid4(),
				'number'     => $phone,
				'status'     => 'OK',
				'cost'       => '0.00',
				'country'    => 'ua',
				'mccmnc'     => '',
				'parts'      => 'sms' === $channel ? '1' : '0',
			);
		}

		return ApiResult::success(
			array(
				'channel' => $channel,
				'items'   => $items,
				'message' => $message,
			),
			200,
			array( 'mock' => true )
		);
	}

	/**
	 * Mock status response.
	 *
	 * @param string[] $message_ids Message IDs.
	 * @param string   $status Status.
	 */
	private function mock_statuses( array $message_ids, string $status ): ApiResult {
		$statuses = array();

		foreach ( $message_ids as $message_id ) {
			$statuses[ $message_id ] = array(
				array(
					'date'   => gmdate( 'c' ),
					'status' => $status,
				),
			);
		}

		return ApiResult::success(
			array(
				'statuses' => $statuses,
			),
			200,
			array( 'mock' => true )
		);
	}
}