//
//  main.swift
//  Blockchain
//
//  Created by Victor BODINAUD on 27/02/2020.
//  Copyright © 2020 Victor BODINAUD. All rights reserved.
//

import Foundation

let blockchain = Blockchain()
var command: String?

blockchain.createGenesisBlock(data: "")

repeat {
    print("Enter command:")
    command = readLine()
    
    // Create a new block
    if command == "create" {
        print("data for the new block:")
        let data = readLine()
        blockchain.createBlock(data: data ?? "")
    }
    
    // Create a lot of blocks
    if command == "spam" {
        for _ in 1...1000 {
            blockchain.createBlock(data: "\((blockchain.chain.last?.index ?? 0)+1)")
        }
    }
    
    // Check validity of the blockchain
    if command == "validity" {
        blockchain.chainValidity()
    }
    
    // Insert a corrupted block
    if command == "corrupt" {
        blockchain.insertCorruptedBlock()
    }
    
} while command != "exit"