import * as fs from "fs";

const shema = {
  NOP:{c:0,l:[]},
  LDA:{c:1,l:[1,2]},
  LDB:{c:2,l:[1,2]},
  LDC:{c:3,l:[1,2]},
  LDX:{c:4,l:[1,2]},

  LOA:{c:5,l:[1,2]},
  LOB:{c:6,l:[1,2]},
  LOC:{c:7,l:[1,2]},

  STA:{c:8,l:[1,2]},
  STB:{c:9,l:[1,2]},
  STC:{c:10,l:[1,2]},
  STX:{c:11,l:[1,2]},

  SOA:{c:12,l:[1,2]},
  SOB:{c:13,l:[1,2]},
  SOC:{c:14,l:[1,2]},

  LIA:{c:15,l:[4]},
  LIB:{c:16,l:[4]},
  LIC:{c:17,l:[4]},
  LIX:{c:18,l:[4]},

  CAB:{c:19,l:[]},
  CBC:{c:20,l:[]},
  CCA:{c:21,l:[]},
  CAC:{c:22,l:[]},
  CCB:{c:23,l:[]},
  CBA:{c:24,l:[]},

  CAX:{c:25,l:[]},
  CBX:{c:26,l:[]},
  CCX:{c:27,l:[]},
  CXA:{c:28,l:[]},
  CXB:{c:29,l:[]},
  CXC:{c:30,l:[]},

  CVA:{c:31,l:[1,1]},
  CVB:{c:32,l:[1,1]},
  CVC:{c:33,l:[1,1]},

  ADD:{c:34,l:[1,1,1]},
  SUB:{c:35,l:[1,1,1]},
  MUL:{c:36,l:[1,1,1]},
  DIV:{c:37,l:[1,1,1]},
  MOD:{c:38,l:[1,1,1]},

  POW:{c:39,l:[1,1,1]},
  ROT:{c:40,l:[1,1,1]},
  LOG:{c:41,l:[1,1]},

  SR:{c:42,l:[]},
  SL:{c:43,l:[]},

  INC:{c:44,l:[1]},
  DEC:{c:45,l:[1]},

  BWO:{c:46,l:[]},
  BWA:{c:47,l:[]},
  BWX:{c:48,l:[]},

  CMP:{c:49,l:[1,1]},
  JMP:{c:50,l:[2]},
  JE: {c:51,l:[2]},
  JNE:{c:52,l:[2]},
  JB: {c:53,l:[2]},
  JNB:{c:54,l:[2]},
  JS: {c:55,l:[2]},
  JNS:{c:56,l:[2]},

  PSH:{c:57,l:[1]},
  PUL:{c:58,l:[1]},
  JSR:{c:59,l:[2]},
  JSA:{c:60,l:[]},
  RSR:{c:61,l:[]},

  IN :{c:252,l:[]},
  OUT:{c:253,l:[1]},
  SHS:{c:254,l:[2]},
  HLT:{c:255,l:[]},
};

var path = process.argv[2];
var pathout = process.argv[3];
if(!path||!pathout){
  console.log("PLease this Schema: node compile.js [path] [pathout]");
  process.exit();
}
var file = fs.readFileSync(path).toString().split("\n");

var s1 = [];
var vars = {};
var label = false;

file.forEach((dd, i) => {
  let d = dd.split(";")[0].trim();
  if(d.length == 0) return;
  if(d.endsWith(":")){
    label = d.replace(":","");
  }else if(d.includes("=")){
    var line = d.split("=");
    vars[line[0].trim()] = Number(line[1].trim());
  }else{
    var line = d.replace(/ +(?= )/g,'').split(" ");
    var base = {d:line.splice(1)};
    if(label){
      base.label = label;
      label = false;
    }
    var shem = shema[line[0]];
    if(!shem){
      console.log("Cout not parse command:",line[0]);
      process.exit();
    }
    s1.push(Object.assign(base,shem));
  }
});

function findLabel(l){
  var count = 0;
  for (var i = 0; i < s1.length; i++) {
    if(s1[i].label==l)return count;
    count += 1;
    s1[i].l.forEach((item, i) => {
      count += item;
    });


  }
  console.log("Cout not pase label:",l);
  process.exit();
}



s1.forEach((d, i) => {

  if(d.d.length){
    d.d = d.d.map(e=>{
      if (e.startsWith(".")){
        return findLabel(e.substr(1));
      }else if(!isNaN(e)){
        var n =  Number(e);
        if(Number.isInteger(n)){
          if(n>=0){
            return n;
          }else{
            var buf = new ArrayBuffer(4);
            (new Int32Array(buf))[0] = n;
            return (new Uint32Array(buf))[0];
          }
        }else{
          var buf = new ArrayBuffer(4);
          (new Float32Array(buf))[0] = n;
          return (new Uint32Array(buf))[0];
        }
      }else if(e=="NaN"){
        return 2143289344;
      }else if(typeof vars[e] == "number"){
        return vars[e];
      }else{
        console.log("Cout not parse:", e);
        process.exit();
      }
    });
  }
});

var s2 = [];
s1.forEach((d, i) => {
  s2.push(d.c);
  d.l.forEach((item, i) => {
    for (var j = item-1; j >= 0; j--) {
      s2.push(((d.d[i]??0)>>(8*j))&0xff);
    }
  });
});
var finish = s2.map(d=>d.toString(16).padStart(2,"0")).join("");
fs.writeFileSync(pathout,finish);
console.log(`Finished converting in ${Math.round(performance.now())/1000}sec. The Size is: ${s2.length}byts. Binary in HEX saved to: ${pathout}`);