var hfc = require('fabric-client');
var path = require('path');


// kubernetes credentials 
var config = {
    walletPath: path.join(__dirname, './creds'),
    userId: 'admin',
    channelId: 'channel1',
    chaincode_id: 'mynetworkofasset5',
   peerUrl: 'grpc://<cluster IP Address>:30110'


};


var channel = {};
var client = null;


function initClient(){
    console.log("Create a client and the user");
	console.log(config.walletPath);    
client = new hfc();

    // if(client.isDevMode())
//    client.setDevMode(true);

    return hfc.newDefaultKeyValueStore({ path: config.walletPath })
    .then(wallet => {
        return client.setStateStore(wallet);
    })
}

function initUser(){

	console.log("inside initUser");
    return client.getUserContext(config.userId, true)
    .then(user => {
        if(!user)
            return;
        console.log("Check user is enrolled, and set a query URL in the network");
        if (user === undefined || user.isEnrolled() === false) {
            console.error("User not defined, or not enrolled - error");
        }
        if (user != undefined || user.isEnrolled() === true) {
            console.error("User is defined and enrolled");
        }

    });
}

function initChannel() {

	console.log("initChannel 1");
    channel = client.newChannel(config.channelId);
		console.log("initChannel 2");
channel.addPeer(client.newPeer(config.peerUrl));   

/*   let data = fs.readFileSync(path.join(__dirname, './tls_cacerts/tlsca.pem'));
   let peer = client.newPeer(
   config.peerUrl,
   {
      pem: Buffer.from(data).toString(),
      'ssl-target-name-override': 'https://fft-zbc02a.4.secure.blockchain.ibm.com:23576'
   });

console.log("initChannel 3");
channel.addPeer(peer);
console.log("initChannel 4");
*/

}

function getChannelInfo() {
	console.log("getChannel 1");
    return channel.queryInfo(config.peerUrl);
}

function getCurrentBlock(channelInfo){
	console.log("in channelInfo");
    let currentBlockIndex = channelInfo.height.toNumber() - 1;
    return channel.queryBlock(currentBlockIndex)
}


function displayBlockInfo(block){
    console.log('\n-----------------------------------------------------------------------------------');
    console.log('This is the current block on channel', config.channelId)
    console.log('\nheader:', JSON.stringify(block.header, null, '\t'));
    console.log('\ndata:', JSON.stringify(block.data));
    console.log('-----------------------------------------------------------------------------------\n');
}

Promise.resolve()
.then(initClient)
.then(initUser)
.then(initChannel)
.then(getChannelInfo)
.then(getCurrentBlock)
.then(displayBlockInfo)
.catch(console.error);