<?php
declare(strict_types=1);

$outDir = __DIR__ . '/dataset';
if (!is_dir($outDir)) mkdir($outDir, 0777, true);

/**
 * 地区 + 城市（用于命名）
 */
$geoPoints = [

    // ap = Asia Pacific
    ['region'=>'ap','name'=>'hangzhou','lat'=>30.274086,'lon'=>120.155071],
    ['region'=>'ap','name'=>'beijing','lat'=>39.9042,'lon'=>116.4074],
    ['region'=>'ap','name'=>'guangzhou','lat'=>23.1291,'lon'=>113.2644],
    ['region'=>'ap','name'=>'chengdu','lat'=>30.5728,'lon'=>104.0668],
    ['region'=>'ap','name'=>'tokyo','lat'=>35.6762,'lon'=>139.6503],
    ['region'=>'ap','name'=>'seoul','lat'=>37.5665,'lon'=>126.9780],
    ['region'=>'ap','name'=>'bangkok','lat'=>13.7563,'lon'=>100.5018],
    ['region'=>'ap','name'=>'singapore','lat'=>1.3521,'lon'=>103.8198],
    ['region'=>'ap','name'=>'jakarta','lat'=>-6.2088,'lon'=>106.8456],
    ['region'=>'ap','name'=>'delhi','lat'=>28.6139,'lon'=>77.2090],
    ['region'=>'ap','name'=>'mumbai','lat'=>19.0760,'lon'=>72.8777],

    // me = Middle East / Africa
    ['region'=>'me','name'=>'dubai','lat'=>25.2048,'lon'=>55.2708],
    ['region'=>'me','name'=>'istanbul','lat'=>41.0082,'lon'=>28.9784],
    ['region'=>'me','name'=>'cairo','lat'=>30.0444,'lon'=>31.2357],
    ['region'=>'me','name'=>'nairobi','lat'=>-1.2921,'lon'=>36.8219],
    ['region'=>'me','name'=>'johannesburg','lat'=>-26.2041,'lon'=>28.0473],

    // eu
    ['region'=>'eu','name'=>'london','lat'=>51.5072,'lon'=>-0.1276],
    ['region'=>'eu','name'=>'paris','lat'=>48.8566,'lon'=>2.3522],
    ['region'=>'eu','name'=>'madrid','lat'=>40.4168,'lon'=>-3.7038],
    ['region'=>'eu','name'=>'rome','lat'=>41.9028,'lon'=>12.4964],
    ['region'=>'eu','name'=>'berlin','lat'=>52.5200,'lon'=>13.4050],
    ['region'=>'eu','name'=>'warsaw','lat'=>52.2297,'lon'=>21.0122],
    ['region'=>'eu','name'=>'moscow','lat'=>55.7558,'lon'=>37.6173],

    // na
    ['region'=>'na','name'=>'newyork','lat'=>40.7128,'lon'=>-74.0060],
    ['region'=>'na','name'=>'chicago','lat'=>41.8781,'lon'=>-87.6298],
    ['region'=>'na','name'=>'losangeles','lat'=>34.0522,'lon'=>-118.2437],
    ['region'=>'na','name'=>'dallas','lat'=>32.7767,'lon'=>-96.7970],
    ['region'=>'na','name'=>'toronto','lat'=>43.6532,'lon'=>-79.3832],
    ['region'=>'na','name'=>'mexicocity','lat'=>19.4326,'lon'=>-99.1332],

    // sa / oc
    ['region'=>'sa','name'=>'saopaulo','lat'=>-23.5505,'lon'=>-46.6333],
    ['region'=>'sa','name'=>'santiago','lat'=>-33.4489,'lon'=>-70.6693],
    ['region'=>'oc','name'=>'sydney','lat'=>-33.8688,'lon'=>151.2093],
];

$url = "https://apis.ihg.com/graphql/v1/hotels";

$headers = [
    'sec-ch-ua-platform: "Windows"',
    'Referer: https://www.ihg.com.cn/',
    'sec-ch-ua: "Microsoft Edge";v="147", "Not.A/Brand";v="8", "Chromium";v="147"',
    'ihg-language: zh-CN',
    'sec-ch-ua-mobile: ?0',
    'x-ihg-api-key: se9ym5iAzaW8pxfBjkmgbuGjJcr3Pj6Y',
    'IHG-SessionId: 6cc0bb0f-8850-4302-9d4b-80e2f2ef4860',
    'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 Edg/147.0.0.0',
    'Accept: application/json, text/plain, */*',
    'Content-Type: application/json; charset=UTF-8',
    'IHG-TransactionId: 50fef06e-2f3b-416c-a6af-69ba809c7666',
];

function buildPayload($lat, $lon) {

    $query = <<<'GRAPHQL'
query GetHotelDetails($detailsInput: HotelArgs, $mediaArgs: MediaArgs){
  getHotels(input:$detailsInput){
    hotelInfo{
      hotelCode
      callCenter{phoneNumber}
      address{
        street1 street2 street3 city zip
        state{code name}
        country{name code}
        checkInAddress{city country line1 state zipcode}
      }
      location{boardTypes{boardType}}
      distanceFrom{kilometers miles}
      marketing{optOutDateWeb optInDateWeb marketingText{welcomeMessage}}
      brandInfo{
        SPBrandName brandCode brandName chainCode
        futureBrandInfo{rebrandingDate hotelName chainCode brandName brandCode}
        spTransitionalBrandIdentifier
      }
      greenEngage{
        certificationPrograms{
          certifiedByGloballyRecognizedSustainableProgram
          environmentalCertificationProgram{listItem}
        }
        lowCarbon{lowCarbonHotelDescription isLowCarbonHotel}
        lowCarbonReady{lowCarbonReadyHotelDescription isLowCarbonReadyHotel}
      }
      room{hotelHighlights{hotelDisclaimer}}
      badges{name id}
      facilities{name id}
      parking{
        complimentaryDailySelfParking
        parkingDescription
        carParkingAvailable
        valetParkingAvailable
      }
      policies{
        pet{petsAllowed guideDogsOrServiceAnimalsAllowed description}
      }
      stripes{id name}
      renovationAlertsList{alertType flagEndDate flagStartDate other}
      profile{
        name
        webNonBrandedHotelLogo{url}
        seoCity
        nonIhgCrsUrl
        independentNonIHGWebsiteURL
        hotelLogo{originalUrl}
        averageReview
        tpiLevel2Violator
        primaryImageUrl{originalUrl}
        latLong{lon lat}
        hotelStatus
        preSellDate
        dateOpened
        totalReviews
        vatIncluded
      }
      media(input:$mediaArgs){
        primaryPhotos{
          allPhotos{
            type
            primary
            caption
            originalUrl
            formats{url aspectHeight aspectWidth}
          }
        }
      }
      foodAndBeverage{
        complimentaryBreakfastDetails{complimentaryGrabAndGoBreakfast}
      }
      restaurant{onSiteRestaurantsCount}
      tax{
        taxAndFeeDetail
        serviceCharge{
          startAndEndDate{startDate endDate}
          description
        }
      }
    }
  }
}
GRAPHQL;

$data = json_encode([
    'operationName' => 'GetHotelDetails',
    'variables' => [
        'detailsInput' => [
            'rebrandStartDate' => '2026-04-28',
            'geoLocation' => [
                'lat' => $lat,
                'lon' => $lon,
                'radius' => 1336,
            ],
            'geoLocationDistance' => [
                'distanceType' => 'STRAIGHT_LINE',
                'distanceUnit' => 'KM',
            ],
            'size' => 3000,
            'fallbackSearch' => [
                'minHotels' => 1,
                'maxRadius' => 100,
                'incrementRadiusBy' => 70,
            ],
            'sortBy' => 'DISTANCE',
        ],
        'mediaArgs' => [
            'formats' => [
                ['aspectHeight' => '3', 'aspectWidth' => '4'],
                ['aspectHeight' => '5', 'aspectWidth' => '16'],
            ],
        ],
    ],
    'query' => $query,
], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
return $data;
/** 
    return json_encode([
        "operationName"=>"GetHotelDetails",
        "variables"=>[
            "detailsInput"=>[
                "geoLocation"=>[
                    "lat"=>$lat,
                    "lon"=>$lon,
                    "radius"=>1300
                ],
                "size"=>3000,
                "sortBy"=>"DISTANCE"
            ]
        ],
        "query"=>"query GetHotelDetails(\$detailsInput:HotelArgs){getHotels(input:\$detailsInput){hotelInfo{hotelCode}}}"
    ], JSON_UNESCAPED_UNICODE);
*/
}

function fetch($url, $headers, $payload) {
    $ch = curl_init($url);
    curl_setopt_array($ch, [
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_POST => true,
        CURLOPT_HTTPHEADER => $headers,
        CURLOPT_POSTFIELDS => $payload,
        CURLOPT_ENCODING => '',
        CURLOPT_TIMEOUT => 20,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_2_0, // 对应 --http2
    ]);
    $res = curl_exec($ch);
    curl_close($ch);
    return $res;
}

/**
 * 主循环
 */
foreach ($geoPoints as $p) {

    $filename = "{$p['region']}-{$p['name']}.json";
    $filepath = $outDir . '/' . $filename;

    echo "抓取 {$filename}...\n";

    $payload = buildPayload($p['lat'], $p['lon']);
    $res = fetch($url, $headers, $payload);

    if (!$res) {
        echo "失败: {$filename}\n";
        continue;
    }

    file_put_contents($filepath, $res);

    // 防封（非常重要）
    usleep(300000); // 0.3秒
}

echo "全部完成\n";