import os
import sys
from args import args
from assethelpers import getAssetRelativePath
from assetcache import assetGetCache, assetCache

def processConfig(asset):
  assetPath = asset['path']
  cache = assetGetCache(assetPath)
  if cache is not None:
    return cache

  print(f"Processing config: {assetPath}")

  # Takes each line, seperates it by either semicolon or newline,
  # trims whitespace. Then outputs it to a file.
  with open(assetPath, "r") as f:
    lines = f.read().replace('\r', '').split('\n')

  commands = []
  for line in lines:
    lineCommands = line.split(';')
    for command in lineCommands:
      command = command.strip()
      if command != '':
        commands.append(command)

  data = bytearray()
  data.extend(b"DCF")  # Dusk Config File
  for command in commands:
    # Convert to string and seperate each command with semicolon
    data.extend(command.encode('utf-8'))
    data.append(0x3B)  # Semicolon

  if len(commands) > 0:
    data.pop()  # Remove last semicolon

  relative = getAssetRelativePath(assetPath)
  fileNameWithoutExt = os.path.splitext(os.path.basename(assetPath))[0]
  outputFileRelative = os.path.join(os.path.dirname(relative), f"{fileNameWithoutExt}.dcf")
  outputFilePath = os.path.join(args.output_assets, outputFileRelative)
  os.makedirs(os.path.dirname(outputFilePath), exist_ok=True)
  with open(outputFilePath, "wb") as f:
    f.write(data)

  outConfig = {
    "files": [ outputFilePath ],
  }
  return assetCache(assetPath, outConfig)