<?php

namespace App\Tool;

/**
 * L3 Distribution
 */
class ThirdApi
{

    const USER_AGENT = "Jose's Chrome/1.2";

    const ID_BTC = 1;
    const ID_ETH = 1027;

    /**
     * Send a Message to Tg.
     * 
     * @param {string} msg: message
     * @return {boolean}
     */
    public static function sendToTg($msg): bool
    {
        // config
        $groupid = -1001256080228;
        $token = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdXRob3JpemVkIjp0cnVlLCJleHAiOjE2ODQ3NDM4ODYsInVzZXJuYW1lIjoic3VwZXJtYXN0ZXIifQ.1R-PvyUg_GXpJOk-7lQTBjBnw0cLRxajx5kNsvuY7OA';

        $hc = new \GuzzleHttp\Client();
        $resp = $hc->post(config('app.tg_url'), [
            'headers' => [
                'User-Agent' => self::USER_AGENT,
                'Content-Type' => 'application/json',
                'Token' => $token,
            ],
            'json' => [
                'groupid' => $groupid,
                'msg' => $msg,
            ]
        ]);

        // In fact, we dont care the result.
        return true;
    }

    /**
     * Price of Coin in USD.
     * 
     *  API Sample Return:
     * 
     *      {
     *          "data": {
     *              "symbol": "ETH",
     *              "id": "1027",
     *              "name": "Ethereum",
     *              "amount": 1,
     *              "last_updated": 1653295260000,
     *              "quote": [
     *                  {
     *                      "cryptoId": 2781,
     *                      "symbol": "USD",
     *                      "price": 2057.2269068671376,
     *                      "lastUpdated": 1653295336000
     *                  }
     *              ]
     *          },
     *          "status": {
     *              "timestamp": "2022-05-23T08:43:37.410Z",
     *              "error_code": "0",
     *              "error_message": "SUCCESS",
     *              "elapsed": "1",
     *              "credit_count": 0
     *          }
     *      }
     * 
     * @param {integer} id: id of coin.(CoinMarketCap API)
     * @return {float}
     */
    public static function getPrice($id): float
    {
        $base_url = 'https://api.coinmarketcap.com/data-api/v3/tools/price-conversion';
        $amount = 1;
        $convert_id = 2781; // USD

        $url = $base_url . "?amount=$amount&convert_id=$convert_id&id=$id";

        $hc = new \GuzzleHttp\Client();
        $resp = $hc->get($url, [
            'headers' => [
                'User-Agent' => self::USER_AGENT,
            ]
        ]);
        if ($resp->getStatusCode() == 200 && $body = $resp->getBody()) {
            $body->seek(0);
            $data = $body->read(1024);

            $d = json_decode($data, true);
            if (
                $d['status'] &&
                $d['status']['error_code'] == 0 &&
                $d['data'] &&
                $d['data']['id'] == $id &&
                $d['data']['quote']
            ) {
                return $d['data']['quote'][0]['price'] ?? 0.0;
            }
        }
        return 0.0;
    }

    /**
     * Get Price of ETH in USD.
     */
    public static function getETHPrice(): float
    {
        return self::getPrice(self::ID_ETH);
    }
}