import vm
import compiler
import os
import config

type Result = enum
  rsOK, rsCompileError, rsRuntimeError

proc interpret(name: string, source: string): Result =
  let compiler = newCompiler(name, source)
  compiler.compile()
  if compiler.hadError:
    return rsCompileError
  case compiler.chunk.run():
    of irOK:
      rsOK
    of irRuntimeError:
      rsRuntimeError
  

proc repl =
  while true:
    try:
      let line = konLineEditor()
      if line.len > 0:
        discard interpret("repl", line)
    except ReadlineInterruptedException:
      break

proc runFile(path: string) =
  case interpret(path, readFile(path)):
  of rsCompileError:
    quit 65
  of rsRuntimeError:
    quit 70
  of rsOK:
    quit 0

const hardcodedPath* = ""

if paramCount() == 0:
  if hardcodedPath == "":
    repl()
  else:
    runFile(hardcodedPath)
elif paramCount() == 1:
  runFile(paramStr(1))
else:
  echo "Maximum param count is 1"
  quit 1