<?php

declare(strict_types=1);

namespace app\common\library\scrm\spider;

use app\common\library\scrm\AbstractScrmSpider;
use app\common\library\scrm\AntiBotConfigBuilder;
use app\common\library\scrm\UnifiedScrmData;
use app\common\service\SplitTicketSyncLogger;

/**
 * Whatshub 云控蜘蛛
 *
 * 时序：cURL detailByShareCode 拉号码 → Node 监听 statistics 算完成量 → 失败则完整 Node 爬虫
 */
class WhatshubSpider extends AbstractScrmSpider
{
    /** 列表 API 路径 */
    private const API_LIST = '/api/whatshub-counter/workShare/open/detail';

    /** 详情/统计 API 路径 */
    private const API_DETAILS = '/api/whatshub-counter/workShare/open/statistics';

    /** shareCode + password 直连接口（一次返回全量号码，无需翻页） */
    private const API_DETAIL_BY_SHARE_CODE = '/api/whatshub-counter/workShare/open/detailByShareCode';

    /** 默认每页条数 */
    private const DEFAULT_PER_PAGE_COUNT = 20;

    private const API_FETCH_TIMEOUT_SEC = 20;

    private string $pageUrl;

    private string $account;

    private string $password;

    private UnifiedScrmData $unifiedData;

    public function __construct(
        string $pageUrl,
        string $account = '',
        string $password = '',
        string $nodeHost = 'http://127.0.0.1:3001'
    ) {
        parent::__construct($nodeHost);
        $this->pageUrl = $pageUrl;
        $this->account = $account;
        $this->password = $password;
        $this->unifiedData = new UnifiedScrmData();
    }

    /**
     * 混合同步：cURL 拉号码 + Node 监听 statistics 算完成量
     * statistics 失败时清 session 重试；仍失败则 fallback 完整 Node 仅取完成量
     */
    public function run(): UnifiedScrmData
    {
        $apiResult = $this->tryFetchViaShareCodeApi();
        $statsCount = $this->tryFetchStatisticsViaNode(false);

        if ($apiResult instanceof UnifiedScrmData && $statsCount !== null) {
            $apiResult->todayNewCount = $statsCount;
            SplitTicketSyncLogger::log('spider', 'whatshub hybrid path ok', [
                'numberCount'   => count($apiResult->numbers),
                'todayNewCount' => $statsCount,
            ]);
            return $apiResult;
        }

        // cURL 已成功：清 session 再试 statistics；仍失败则完整 Node 只取完成量
        if ($apiResult instanceof UnifiedScrmData) {
            SplitTicketSyncLogger::log('spider', 'whatshub stats retry after purge session', [
                'numberCount' => count($apiResult->numbers),
            ]);
            $statsCount = $this->tryFetchStatisticsViaNode(true);
            if ($statsCount !== null) {
                $apiResult->todayNewCount = $statsCount;
                SplitTicketSyncLogger::log('spider', 'whatshub hybrid path ok (retry)', [
                    'numberCount'   => count($apiResult->numbers),
                    'todayNewCount' => $statsCount,
                ]);
                return $apiResult;
            }

            SplitTicketSyncLogger::log('spider', 'whatshub stats fallback full node for complete count', [
                'pageUrl'     => $this->pageUrl,
                'numberCount' => count($apiResult->numbers),
            ]);
            try {
                $fullResult = parent::run();
                $apiResult->todayNewCount = $fullResult->todayNewCount;
                SplitTicketSyncLogger::log('spider', 'whatshub hybrid path ok (full node stats)', [
                    'numberCount'   => count($apiResult->numbers),
                    'todayNewCount' => $apiResult->todayNewCount,
                ]);
                return $apiResult;
            } catch (\Throwable $e) {
                SplitTicketSyncLogger::log('spider', 'whatshub stats fallback full node failed', [
                    'error' => $e->getMessage(),
                ]);
            }

            throw new \RuntimeException('Whatshub statistics 同步失败（号码已通过 API 获取，无法更新完成量）');
        }

        SplitTicketSyncLogger::log('spider', 'whatshub hybrid incomplete, fallback full node', [
            'pageUrl'      => $this->pageUrl,
            'apiOk'        => false,
            'statisticsOk' => $statsCount !== null,
        ]);

        return parent::run();
    }

    /** Whatshub vxe 密码表单：placeholder 含「密码」+ 确认按钮，与业务页搜索框区分 */
    private const AUTH_PASSWORD_INPUT = '.vxe-form .el-input__inner[placeholder*="密码"]';

    private const AUTH_CONFIRM_BUTTON = '.vxe-form .vxe-button-group button.theme--primary[type="submit"]';

    /**
     * Node 监听 statistics API，返回 dayNewFans + reDayNewFans 总和；失败返回 null
     *
     * @param bool $isRetry 是否为清 session 后的二次尝试
     */
    private function tryFetchStatisticsViaNode(bool $isRetry = false): ?int
    {
        $config = $this->getSpiderConfig();
        $antiBot = $config['antiBot'] ?? null;
        if (is_array($antiBot)) {
            // statistics-only：早挂拦截器、识别 vxe 密码框、session 有效时 skip auth
            $antiBot = array_merge($antiBot, [
                'skipPostCfReadyApi'           => true,
                'authSkipIfNoPasswordDialog'   => true,
                'authSelectorTimeoutMs'        => 30000,
                'earlyApiIntercept'            => true,
            ]);
            if ($isRetry) {
                $antiBot['purgeSession'] = true;
            }
        }

        SplitTicketSyncLogger::log('spider', 'whatshub stats node request', [
            'pageUrl'  => $this->pageUrl,
            'api'      => self::API_DETAILS,
            'isRetry'  => $isRetry,
        ]);

        $result = $this->requestNode('/api/auth-and-intercept', [
            'pageUrl'     => $config['pageUrl'],
            'apiUrls'     => [self::API_DETAILS],
            'authActions' => $config['authActions'] ?? [],
            'antiBot'     => $antiBot,
        ], $this->resolveAuthInterceptTimeout(is_array($antiBot) ? $antiBot : null));

        if (empty($result['success'])) {
            SplitTicketSyncLogger::log('spider', 'whatshub stats node failed', [
                'error' => $result['error'] ?? '未知',
                'code'  => $result['code'] ?? null,
                'page'  => $result['page'] ?? null,
            ]);
            return null;
        }

        $intercepted = $result['interceptedApis'] ?? [];
        if (!isset($intercepted[self::API_DETAILS]['data']) || !is_array($intercepted[self::API_DETAILS]['data'])) {
            SplitTicketSyncLogger::log('spider', 'whatshub stats node missing payload', [
                'intercepted' => array_keys(is_array($intercepted) ? $intercepted : []),
                'page'        => $result['page'] ?? null,
            ]);
            return null;
        }

        $detailData = $intercepted[self::API_DETAILS]['data'];
        $dayNewFans = (int) ($detailData['data']['dayNewFans'] ?? 0);
        $reDayNewFans = (int) ($detailData['data']['reDayNewFans'] ?? 0);
        $total = $dayNewFans + $reDayNewFans;

        SplitTicketSyncLogger::log('spider', 'whatshub stats node ok', [
            'dayNewFans'   => $dayNewFans,
            'reDayNewFans' => $reDayNewFans,
            'total'        => $total,
        ]);

        return $total;
    }

    /**
     * 从短链 pageUrl 解析 shareCode，例如 /m/KMYBBInp2066/1 → KMYBBInp2066
     */
    private function extractShareCodeFromPageUrl(): ?string
    {
        $path = (string) parse_url($this->pageUrl, PHP_URL_PATH);
        if ($path === '') {
            return null;
        }
        if (preg_match('#/m/([^/]+)/#', $path, $matches)) {
            return $matches[1];
        }

        return null;
    }

    /**
     * 拼接 detailByShareCode 完整 GET URL
     */
    private function buildShareCodeApiUrl(string $shareCode): ?string
    {
        $parsed = parse_url($this->pageUrl);
        $scheme = isset($parsed['scheme']) ? (string) $parsed['scheme'] : 'https';
        $host = isset($parsed['host']) ? (string) $parsed['host'] : '';
        if ($host === '') {
            return null;
        }

        $query = http_build_query([
            'shareCode' => $shareCode,
            'password'  => $this->password,
        ]);

        return $scheme . '://' . $host . self::API_DETAIL_BY_SHARE_CODE . '?' . $query;
    }

    /**
     * 尝试通过 shareCode API 抓取；成功返回 UnifiedScrmData，否则返回 null
     */
    private function tryFetchViaShareCodeApi(): ?UnifiedScrmData
    {
        if ($this->password === '') {
            SplitTicketSyncLogger::log('spider', 'whatshub api skip: empty password', []);
            return null;
        }

        $shareCode = $this->extractShareCodeFromPageUrl();
        if ($shareCode === null || $shareCode === '') {
            SplitTicketSyncLogger::log('spider', 'whatshub api skip: cannot parse shareCode', [
                'pageUrl' => $this->pageUrl,
            ]);
            return null;
        }

        $apiUrl = $this->buildShareCodeApiUrl($shareCode);
        if ($apiUrl === null) {
            SplitTicketSyncLogger::log('spider', 'whatshub api skip: invalid pageUrl host', [
                'pageUrl' => $this->pageUrl,
            ]);
            return null;
        }

        SplitTicketSyncLogger::log('spider', 'whatshub api request', [
            'url' => preg_replace('/password=[^&]+/', 'password=***', $apiUrl),
        ]);

        $ch = curl_init($apiUrl);
        if ($ch === false) {
            SplitTicketSyncLogger::log('spider', 'whatshub api curl init failed', []);
            return null;
        }

        curl_setopt_array($ch, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_CONNECTTIMEOUT => 5,
            CURLOPT_TIMEOUT        => self::API_FETCH_TIMEOUT_SEC,
            CURLOPT_HTTPHEADER     => [
                'Accept: application/json',
                'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
            ],
        ]);

        $response = curl_exec($ch);
        $httpCode = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $curlErr = curl_error($ch);
        curl_close($ch);

        if ($response === false || $curlErr !== '') {
            SplitTicketSyncLogger::log('spider', 'whatshub api curl failed', [
                'error' => $curlErr,
            ]);
            return null;
        }

        if ($httpCode !== 200) {
            SplitTicketSyncLogger::log('spider', 'whatshub api http error', [
                'httpCode' => $httpCode,
            ]);
            return null;
        }

        $payload = json_decode((string) $response, true);
        if (!is_array($payload)) {
            SplitTicketSyncLogger::log('spider', 'whatshub api invalid json', []);
            return null;
        }

        if ((int) ($payload['code'] ?? 0) !== 200) {
            SplitTicketSyncLogger::log('spider', 'whatshub api business error', [
                'code' => $payload['code'] ?? null,
                'msg'  => $payload['msg'] ?? '',
            ]);
            return null;
        }

        if (!isset($payload['data']) || !is_array($payload['data'])) {
            SplitTicketSyncLogger::log('spider', 'whatshub api invalid data field', []);
            return null;
        }

        return $this->parseShareCodeApiResponse($payload);
    }

    /**
     * 将 detailByShareCode 响应映射为 UnifiedScrmData
     *
     * @param array<string, mixed> $payload
     */
    private function parseShareCodeApiResponse(array $payload): UnifiedScrmData
    {
        $unifiedData = new UnifiedScrmData();

        foreach ($payload['data'] as $item) {
            if (!is_array($item) || empty($item['account'])) {
                continue;
            }

            $number = (string) $item['account'];
            $isOnline = isset($item['isOnline']) && (int) $item['isOnline'] === 1;
            $dayNewFans = (int) ($item['dayNewFans'] ?? 0);

            // 号码同步仅使用 dayNewFans，不含 reDayNewFans；完成量由 Node statistics 提供
            $unifiedData->addNumber($number, $isOnline, $dayNewFans);
        }

        $unifiedData->total = count($unifiedData->numbers);

        return $unifiedData;
    }

    /** @return array<string, mixed> */
    protected function getSpiderConfig(): array
    {
        return [
            'pageUrl'        => $this->pageUrl,
            'listApi'        => self::API_LIST,
            'detailApi'      => self::API_DETAILS,
            'listMethod'     => 'POST',
            'paginationMode' => self::MODE_UI,
            'authActions'    => [
                // Whatshub 密码 UI 为 vxe-form + Element input，限定在表单内避免误填搜索框
                ['type' => 'vue_fill', 'selector' => self::AUTH_PASSWORD_INPUT, 'value' => $this->password],
                ['type' => 'wait', 'ms' => 500],
                ['type' => 'vue_click', 'selector' => self::AUTH_CONFIRM_BUTTON],
                ['type' => 'wait', 'ms' => 2200],
            ],
            'antiBot'        => AntiBotConfigBuilder::build('whatshub', $this->pageUrl),
        ];
    }

    /**
     * @param array<string, mixed>|null $listFirstPageData
     * @param array<string, mixed>|null $countData
     */
    protected function extractListTotalPages($listFirstPageData, $countData = null)
    {
        $defaultPerPage = self::DEFAULT_PER_PAGE_COUNT;
        $this->unifiedData->total = (int) ($listFirstPageData['data']['total'] ?? 0);

        if ($this->unifiedData->total <= $defaultPerPage) {
            return 1;
        }

        return (int) ceil($this->unifiedData->total / $defaultPerPage);
    }

    /** @return array<string, mixed> */
    protected function buildListPageParams(int $page): array
    {
        return ['pageNum' => $page, 'pageSize' => self::DEFAULT_PER_PAGE_COUNT];
    }

    /** @return array<string, mixed> */
    protected function getUiPaginationConfig(): array
    {
        return [
            'nextBtnSelector' => '.vxe-pager--next-btn',
            'waitMs'          => 1500,
        ];
    }

    protected function parseToUnifiedData($detailData, array $allListPagesData): UnifiedScrmData
    {
        $unifiedData = $this->unifiedData;

        if (is_array($detailData)) {
            $unifiedData->todayNewCount = (int) ($detailData['data']['dayNewFans'] ?? 0) + (int) ($detailData['data']['reDayNewFans'] ?? 0);
        }

        foreach ($allListPagesData as $pageRaw) {
            if (!is_array($pageRaw)) {
                continue;
            }
            $records = $pageRaw['data']['rows'] ?? [];
            if (!is_array($records)) {
                continue;
            }
            foreach ($records as $item) {
                if (!is_array($item) || empty($item['account'])) {
                    continue;
                }
                $number = (string) $item['account'];
                $isOnline = isset($item['isOnline']) && (int) $item['isOnline'] === 1;
                $unifiedData->addNumber($number, $isOnline, (int) ($item['dayNewFans'] ?? 0));
            }
        }

        $unifiedData->total = count($unifiedData->numbers);

        return $unifiedData;
    }
}