horizon_blockchain_smart_contract.js

var express = require('express');
var fs = require('fs');
var app = express();

var request = require('request')

var blockchainOracle = require('blockchain-oracle')

// the Oracle would require a Horizon javascript library
var horizon = require('horizon-lib')

// the Oracle manages its own Horizon account
var horizonAccount = horizon.generateAccount() // {account: "", secret_phrase: ""}


// the Oracle generates a cryptographic key that it will store (encrypted) on the Horizon blockchain
var blockchain_key = blockchainOracle.generateKey()

// the Oracle generates a hash of itself, that it will store (public) on the Horizon blockchain
var OracleHash = blockchainOracle.hashOracle()

// the Oracle creates a Bitnation Protocol Message that it will store on the Horizon blockchain

var data = {id: blockchainOracle, OracleHash: OracleHash, message: {key: blockchain_key, encrypted: true }}


// it stores the message. The Oracle is now tied to the Horizon blockchain
horizon.sendMessage(horizonAccount.secretphrase, data)


// the Oracle can now run any type of smart-contract logic, but it will only run as long as it gets the Oracle key from Horizon

function smart_contract_function(){
    
    // check if the Oracle is on the blockchain
    horizon.getMessage() // filter by horizonAccount, find the Bitnation Protocol Message with the Oracle's hash and the Oracle's blockchain_key
    
    if(...)  // if the Oracle found its key on the Horizon blockchain, then the contract will run.
    
    /**
      * add smart-conract logic here
      */
}



// add input-control:


app.post('/', function (req, res) {
  
})

app.get('/', function(req, res) {
  
  var public_data = { horizon_account: horizonAccount.account, oracle_hash: OracleHash }
  res.send(public_data)
  
});

app.listen(process.env.PORT || 5000);