const mineflayer = require('mineflayer')
const vec3 = require('vec3')
var mcdata = mcdata = require('minecraft-data')(minecraftversion);
var automining=false,
    minecraftversion="1.12.2";
if (process.argv.length < 4 || process.argv.length > 6) {
  console.log('Usage : node miner.js <host> <port> [<name>] [<password>]')
  process.exit(1)
}

const bot = mineflayer.createBot({
  host: process.argv[2],
  port: parseInt(process.argv[3]),
  username: process.argv[4] ? process.argv[4] : 'miner',
  password: process.argv[5]
})

bot.on('chat', (user, msg) => {
    if(msg.startsWith("!")){
        cmd(msg)
    }
})

function cmd(msg){
    const args = msg.slice("!".length).split(' ');
    const cmdname = args.shift().toLowerCase();
    const arg = msg.slice(+1 + +"!".length + +cmd.length)

    if(cmdname){
        if(cmdname=="automine"){
            if(arg){
                autominingfunc(arg)
            }
        }else if(cmdname=="stopautomine"){
            automining=false
        }
    }
}
function autominingfunc(blockname){
    if(automining=='false'){
        automining='true';
        if(blockname){
            block = mcdata.blocksByName[blockname];
            if(block){
                setTimeout(function(){
                function autominingscript(block){
                    if(automining=='false'){
                        MCbot.chat('I finished digging')
                    }else{
                        MCbot.findBlock(
                            {
                                point: MCbot.entity.position,
                                matching: block.id,
                                maxDistance: 256,
                                count: 1,
                            },
                            function(err, blocks) {
                                if (err) {
                                    MCbot.chat('Search error '+block.displayName +' : '+ err);
                                    automining='false';
                                    autominingscript(block)
                                }
                                if (blocks.length) {
                                    MCbot.scaffold.to(blocks[0].position, function(err) {
                                        if (err) {
                                            MCbot.chat("error: " + err.code);
                                            automining='false';
                                            autominingscript(block)
                                        } else {
                                            autominingscript(block)
                                        }
                                    })
                                } else {
                                    MCbot.chat("Not found "+block.displayName+"");
                                    automining='false';
                                    autominingscript(block)
                                }
                            }
                        );
                    }
                }
                autominingscript(block)
                }, 5000);
            }else{
                MCbot.chat('Unknown block')
                automining='false';
            }
        }
    } else if(automining=='true'){
        MCbot.chat('Mistake. Bot digs')
    }
}