ObjC.import('Foundation')
ObjC.import('AppKit')

/**
*
*   Get environment variable by name
*
*/


function env(name){
  var env = $.NSProcessInfo.processInfo.environment // -[[NSProcessInfo processInfo] environment]
  env = ObjC.unwrap(env)
  for (var k in env) {
      if(k == name){
          return ObjC.unwrap(env[k])
      }
  }
  return undefined
}

function readJson(path) {
    var data = readFile(path)
    if(!data[0]){ return [false, "file error"] }
    try{
      var obj = JSON.parse(data[1])
    }catch(err){
      return [false, "JSON error"]
    }
    return [true, obj]
}

function readFile(file) {
    var app = Application.currentApplication()
    app.includeStandardAdditions = true

    // Convert the file to a string
    var fileString = file.toString()

    try{
        var p = Path(fileString)
    }catch(err){ return [false, err] }

    try{
      var str = app.read(p)
    }catch(err){
      return [false, err]
    }
    // Read the file and return its contents
    return [true, str]
}

function writeFile(pPathStr, pOutputStr) {
  
  var nsStr = $.NSString.alloc.initWithUTF8String(pOutputStr)
  var nsPath = $(pPathStr).stringByStandardizingPath
  var successBool = nsStr.writeToFileAtomicallyEncodingError(nsPath, false, $.NSUTF8StringEncoding, null)

  if (!successBool) {
    throw new Error("function writeFile ERROR:\nWrite to File FAILED for:\n" + pPathStr)
  }

  return successBool

}

function writeJson(path, obj) {
    try{
        var str = JSON.stringify(obj, null, 2)
    }catch(err){ return [false, "JSON error"]}

    try{
        writeFile(path, str)
    }catch(err){ 
    	return [false, "file error"] 
    }
    return [true, obj]
}