import requests

class ApiClient:
    BASE_URL = 'https://api.unlein.com/v1'

    def __init__(self, api_key):
        self.session = requests.Session()
        self.session.headers.update({'X-API-Key': api_key})

    def get_gold_rate(self, city=None):
        url = f"{self.BASE_URL}/gold/current"
        params = {'city': city} if city else None
        response = self.session.get(url, params=params)
        return response.json()

    def verify_aadhar(self, aadhar_number, name):
        url = f"{self.BASE_URL}/aadhar/verify"
        data = {
            'aadhar_number': aadhar_number,
            'name': name
        }
        response = self.session.post(url, json=data)
        return response.json()

    def check_pnr_status(self, pnr):
        url = f"{self.BASE_URL}/train/pnr"
        params = {'pnr': pnr}
        response = self.session.get(url, params=params)
        return response.json()

class ApiClient {
    constructor(apiKey) {
        this.baseUrl = 'https://api.unlein.com/v1';
        this.headers = {
            'X-API-Key': apiKey,
            'Content-Type': 'application/json'
        };
    }

    async getGoldRate(city = null) {
        const url = new URL(`${this.baseUrl}/gold/current`);
        if (city) url.searchParams.append('city', city);

        const response = await fetch(url, {
            headers: this.headers
        });
        return await response.json();
    }

    async getSilverRate(city = null, purity = null) {
        const url = new URL(`${this.baseUrl}/silver/current`);
        if (city) url.searchParams.append('city', city);
        if (purity) url.searchParams.append('purity', purity);

        const response = await fetch(url, {
            headers: this.headers
        });
        return await response.json();
    }

    async verifyAadhar(aadharNumber, name) {
        const url = `${this.baseUrl}/aadhar/verify`;
        const data = {
            aadhar_number: aadharNumber,
            name: name
        };

        const response = await fetch(url, {
            method: 'POST',
            headers: this.headers,
            body: JSON.stringify(data)
        });
        return await response.json();
    }

    async checkPnrStatus(pnr) {
        const url = new URL(`${this.baseUrl}/train/pnr`);
        url.searchParams.append('pnr', pnr);

        const response = await fetch(url, {
            headers: this.headers
        });
        return await response.json();
    }
}

apiKey = $apiKey;
    }

    public function getGoldRate($city = null) {
        $url = "{$this->baseUrl}/gold/current";
        if ($city) {
            $url .= "?city=" . urlencode($city);
        }

        $ch = curl_init($url);
        curl_setopt_array($ch, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_HTTPHEADER => [
                "X-API-Key: {$this->apiKey}",
                'Accept: application/json'
            ]
        ]);

        $response = curl_exec($ch);
        curl_close($ch);

        return json_decode($response, true);
    }

    public function verifyAadhar($aadharNumber, $name) {
        $url = "{$this->baseUrl}/aadhar/verify";

        $data = [
            'aadhar_number' => $aadharNumber,
            'name' => $name
        ];

        $ch = curl_init($url);
        curl_setopt_array($ch, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_POST => true,
            CURLOPT_POSTFIELDS => json_encode($data),
            CURLOPT_HTTPHEADER => [
                "X-API-Key: {$this->apiKey}",
                'Content-Type: application/json',
                'Accept: application/json'
            ]
        ]);

        $response = curl_exec($ch);
        curl_close($ch);

        return json_decode($response, true);
    }

    public function checkPnrStatus($pnr) {
        $url = "{$this->baseUrl}/train/pnr?pnr=" . urlencode($pnr);
        
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, [
            "X-API-Key: {$this->apiKey}",
            'Content-Type: application/json'
        ]);
        
        $response = curl_exec($ch);
        curl_close($ch);
        
        return json_decode($response, true);
    }
}