// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

import "@chainlink/contracts/src/v0.8/ChainlinkClient.sol";

/**
 * Request testnet LINK and ETH here: https://faucets.chain.link/
 * Find information on LINK Token Contracts and get the latest ETH and LINK faucets here: https://docs.chain.link/docs/link-token-contracts/
 */

contract COVIDstats is ChainlinkClient {
    using Chainlink for Chainlink.Request;
  
    uint public confirmedCases;

    address private oracle;
    bytes32 private jobId;
    uint256 private fee;
    
    /**
     * Network: Kovan
     */
    constructor() {
        setPublicChainlinkToken();
        oracle = 0xc57B33452b4F7BB189bB5AfaE9cc4aBa1f7a4FD8;
        jobId = "d5270d1c311941d0b08bead21fea7747";
        fee = 0.1 * 10 ** 18; // (Varies by network and job)
    }
    
    function requestCovidData() public returns (bytes32 requestId) 
    {
        Chainlink.Request memory request = buildChainlinkRequest(jobId, address(this), this.fulfill.selector);
        
        // Set the URL to perform the GET request on
        request.add("get", "https://api.apify.com/v2/key-value-stores/603AyvQ8QjyqmnZx6/records/LATEST?disableRedirect=true");
        
        // Set the path to find the desired data in the API response, where the response format is:
            //{
                //testedCases	8094663
                //infectedCases	322914
                //numberOfDeath	5027
                //dailyTested	37324
                //dailyInfected	2292
                //dailyDeaths	10
                //dailyDischarged	45
                //dailyHospitalized	510
                //dailyIntensiveCare	131
                //country	"slovenia"
                //historyData	"https://api.apify.com/v2/datasets/H6HKZRQr8I81bClnb/items?format=json&clean=1"
                //sourceUrl	"https://www.gov.si/en/topics/coronavirus-disease-covid-19/actual-data/"
                //lastUpdatedAtApify	"2021-11-03T10:00:00.000Z"
                //lastUpdatedAtSource	"2021-10-26T09:54:00.000Z"
                //readMe	"https://apify.com/dtrungtin/covid-si"
            //}
        request.add("path", "dailyInfected");
        return sendChainlinkRequestTo(oracle, request, fee);
    }
    
    function requestCovidDatav2() public returns (bytes32 requestId) 
    {
        Chainlink.Request memory request = buildChainlinkRequest(jobId, address(this), this.fulfill.selector);
        
        // Set the URL to perform the GET request on
        request.add("get", "https://covid19-api.com/country?name=slovenia&format=json");
        
        // Set the path to find the desired data in the API response, where the response format is:
           // [
            // {
            //    "country": "Slovenia",
            //    "code": "SI",
            //    "confirmed": 383734,
            //    "recovered": 333301,
            //    "critical": 172,
            //    "deaths": 4958,
            //    "latitude": 46.151241,
            //    "longitude": 14.995463,
            //    "lastChange": "2021-11-16T11:01:10+01:00",
            //    "lastUpdate": "2021-11-16T17:00:04+01:00"
            // }
           // ]
        request.add("path", "0.confirmed");
        return sendChainlinkRequestTo(oracle, request, fee);
    }
    
    /**
     * Receive the response in the form of uint256
     */ 
    function fulfill(bytes32 _requestId, uint _data) public recordChainlinkFulfillment(_requestId)
    {
        confirmedCases = _data;
    }
}