<?php

declare(strict_types=1);

namespace app\common\library\scrm;

use think\Config;

/**
 * 云控蜘蛛 antiBot 配置构建器
 *
 * 约定：sessionKey = "{ticketType}:{host}"；profile=real 当 ticket_type 在 site 配置列表中
 */
class AntiBotConfigBuilder
{
    /**
     * 为指定工单类型与落地页 URL 构建 Node antiBot 配置；未启用类型返回 null
     *
     * @return array<string, mixed>|null
     */
    public static function build(string $ticketType, string $pageUrl): ?array
    {
        $enabledTypes = self::getEnabledTypes();
        if (!in_array($ticketType, $enabledTypes, true)) {
            return null;
        }

        $sessionHost = self::resolveSessionHost($ticketType, $pageUrl);
        if ($sessionHost === '') {
            return null;
        }

        $sessionKey = $ticketType . ':' . $sessionHost;
        $ttlMinutes = self::getSessionTtlMinutes();

        return [
            'enabled'            => true,
            'profile'            => 'real',
            'turnstile'          => self::defaultTurnstile($ticketType),
            'solverFallback'     => self::defaultSolverFallback($ticketType),
            'cfClearanceRequired'=> self::defaultCfClearanceRequired($ticketType),
            'sessionKey'         => $sessionKey,
            'challengeTimeoutMs' => 60000,
            'sessionTtlMinutes'  => $ttlMinutes,
            'businessHostHint'   => self::defaultBusinessHostHint($ticketType, $sessionHost),
        ] + self::postCfReadyExtras($ticketType);
    }

    /**
     * 会话域：A2C 短链（yyk.ink）仍用业务域 user.a2c.chat 复用 Real Browser 会话
     */
    public static function resolveSessionHost(string $ticketType, string $pageUrl): string
    {
        $host = strtolower(trim((string) parse_url($pageUrl, PHP_URL_HOST)));
        if ($host === '') {
            return '';
        }

        if ($ticketType === 'a2c') {
            if (strpos($host, 'a2c.chat') !== false) {
                return $host;
            }

            return 'user.a2c.chat';
        }

        return $host;
    }

    /**
     * 解析 sessionKey（供 cron 分组调度使用）
     */
    public static function resolveSessionKey(string $ticketType, string $pageUrl): string
    {
        $host = self::resolveSessionHost($ticketType, $pageUrl);

        return $ticketType . ':' . ($host !== '' ? $host : 'unknown');
    }

    /**
     * 是否对该工单类型启用 antiBot
     */
    public static function isEnabledForType(string $ticketType): bool
    {
        return in_array($ticketType, self::getEnabledTypes(), true);
    }

    /**
     * @return list<string>
     */
    public static function getEnabledTypes(): array
    {
        $raw = (string) Config::get('site.split_scrm_antibot_types');
        if ($raw === '') {
            return ['whatshub', 'chatknow'];
        }
        $parts = array_map('trim', explode(',', $raw));
        return array_values(array_filter($parts, static function (string $v): bool {
            return $v !== '';
        }));
    }

    public static function getSessionTtlMinutes(): int
    {
        $minutes = (int) Config::get('site.split_scrm_session_ttl_minutes');
        return $minutes > 0 ? $minutes : 120;
    }

    /**
     * 按工单类型附加 CF 过盾后的业务页就绪等待
     *
     * @return array<string, mixed>
     */
    private static function postCfReadyExtras(string $ticketType): array
    {
        if ($ticketType === 'whatshub') {
            return [
                'postCfReadyUrlContains' => 'work-order-sharing',
                'postCfReadySelector'    => '.el-input__inner',
                'postCfReadyTimeoutMs'   => 30000,
                'postCfSettleMs'         => 500,
                'postCfSpaWaitMs'        => 4000,
            ];
        }

        if ($ticketType === 'a2c') {
            return [
                'postCfReadyUrlContains' => '/visitors/counter/share',
                'postCfReadySelector'    => '.btn-next',
                'postCfReadyTimeoutMs'   => 30000,
                'postCfSettleMs'         => 500,
                'postCfSpaWaitMs'        => 4000,
            ];
        }

        return [];
    }

    private static function defaultTurnstile(string $ticketType): bool
    {
        return true;
    }

    private static function defaultSolverFallback(string $ticketType): bool
    {
        if ($ticketType === 'a2c') {
            return false;
        }

        return true;
    }

    private static function defaultCfClearanceRequired(string $ticketType): bool
    {
        if ($ticketType === 'a2c') {
            return false;
        }

        return true;
    }

    private static function defaultBusinessHostHint(string $ticketType, string $sessionHost): string
    {
        if ($ticketType === 'a2c') {
            return $sessionHost;
        }

        return '';
    }
}