'use client';
function words(str) {
  var obj = {}, words = str.split(" ");
  for (var i = 0; i < words.length; ++i)
    obj[words[i]] = true;
  return obj;
}

const parserConfig = {
  name: "ttcn-cfg",
  keywords: words("Yes No LogFile FileMask ConsoleMask AppendFile" +
                  " TimeStampFormat LogEventTypes SourceInfoFormat" +
                  " LogEntityName LogSourceInfo DiskFullAction" +
                  " LogFileNumber LogFileSize MatchingHints Detailed" +
                  " Compact SubCategories Stack Single None Seconds" +
                  " DateTime Time Stop Error Retry Delete TCPPort KillTimer" +
                  " NumHCs UnixSocketsEnabled LocalAddress"),
  fileNCtrlMaskOptions: words("TTCN_EXECUTOR TTCN_ERROR TTCN_WARNING" +
                              " TTCN_PORTEVENT TTCN_TIMEROP TTCN_VERDICTOP" +
                              " TTCN_DEFAULTOP TTCN_TESTCASE TTCN_ACTION" +
                              " TTCN_USER TTCN_FUNCTION TTCN_STATISTICS" +
                              " TTCN_PARALLEL TTCN_MATCHING TTCN_DEBUG" +
                              " EXECUTOR ERROR WARNING PORTEVENT TIMEROP" +
                              " VERDICTOP DEFAULTOP TESTCASE ACTION USER" +
                              " FUNCTION STATISTICS PARALLEL MATCHING DEBUG" +
                              " LOG_ALL LOG_NOTHING ACTION_UNQUALIFIED" +
                              " DEBUG_ENCDEC DEBUG_TESTPORT" +
                              " DEBUG_UNQUALIFIED DEFAULTOP_ACTIVATE" +
                              " DEFAULTOP_DEACTIVATE DEFAULTOP_EXIT" +
                              " DEFAULTOP_UNQUALIFIED ERROR_UNQUALIFIED" +
                              " EXECUTOR_COMPONENT EXECUTOR_CONFIGDATA" +
                              " EXECUTOR_EXTCOMMAND EXECUTOR_LOGOPTIONS" +
                              " EXECUTOR_RUNTIME EXECUTOR_UNQUALIFIED" +
                              " FUNCTION_RND FUNCTION_UNQUALIFIED" +
                              " MATCHING_DONE MATCHING_MCSUCCESS" +
                              " MATCHING_MCUNSUCC MATCHING_MMSUCCESS" +
                              " MATCHING_MMUNSUCC MATCHING_PCSUCCESS" +
                              " MATCHING_PCUNSUCC MATCHING_PMSUCCESS" +
                              " MATCHING_PMUNSUCC MATCHING_PROBLEM" +
                              " MATCHING_TIMEOUT MATCHING_UNQUALIFIED" +
                              " PARALLEL_PORTCONN PARALLEL_PORTMAP" +
                              " PARALLEL_PTC PARALLEL_UNQUALIFIED" +
                              " PORTEVENT_DUALRECV PORTEVENT_DUALSEND" +
                              " PORTEVENT_MCRECV PORTEVENT_MCSEND" +
                              " PORTEVENT_MMRECV PORTEVENT_MMSEND" +
                              " PORTEVENT_MQUEUE PORTEVENT_PCIN" +
                              " PORTEVENT_PCOUT PORTEVENT_PMIN" +
                              " PORTEVENT_PMOUT PORTEVENT_PQUEUE" +
                              " PORTEVENT_STATE PORTEVENT_UNQUALIFIED" +
                              " STATISTICS_UNQUALIFIED STATISTICS_VERDICT" +
                              " TESTCASE_FINISH TESTCASE_START" +
                              " TESTCASE_UNQUALIFIED TIMEROP_GUARD" +
                              " TIMEROP_READ TIMEROP_START TIMEROP_STOP" +
                              " TIMEROP_TIMEOUT TIMEROP_UNQUALIFIED" +
                              " USER_UNQUALIFIED VERDICTOP_FINAL" +
                              " VERDICTOP_GETVERDICT VERDICTOP_SETVERDICT" +
                              " VERDICTOP_UNQUALIFIED WARNING_UNQUALIFIED"),
  externalCommands: words("BeginControlPart EndControlPart BeginTestCase" +
                          " EndTestCase"),
  multiLineStrings: true
};

var keywords = parserConfig.keywords,
    fileNCtrlMaskOptions = parserConfig.fileNCtrlMaskOptions,
    externalCommands = parserConfig.externalCommands,
    multiLineStrings = parserConfig.multiLineStrings,
    indentStatements = parserConfig.indentStatements !== false;
var isOperatorChar = /[\|]/;
var curPunc;

function tokenBase(stream, state) {
  var ch = stream.next();
  if (ch == '"' || ch == "'") {
    state.tokenize = tokenString(ch);
    return state.tokenize(stream, state);
  }
  if (/[:=]/.test(ch)) {
    curPunc = ch;
    return "punctuation";
  }
  if (ch == "#"){
    stream.skipToEnd();
    return "comment";
  }
  if (/\d/.test(ch)) {
    stream.eatWhile(/[\w\.]/);
    return "number";
  }
  if (isOperatorChar.test(ch)) {
    stream.eatWhile(isOperatorChar);
    return "operator";
  }
  if (ch == "["){
    stream.eatWhile(/[\w_\]]/);
    return "number";
  }

  stream.eatWhile(/[\w\$_]/);
  var cur = stream.current();
  if (keywords.propertyIsEnumerable(cur)) return "keyword";
  if (fileNCtrlMaskOptions.propertyIsEnumerable(cur))
    return "atom";
  if (externalCommands.propertyIsEnumerable(cur)) return "deleted";

  return "variable";
}

function tokenString(quote) {
  return function(stream, state) {
    var escaped = false, next, end = false;
    while ((next = stream.next()) != null) {
      if (next == quote && !escaped){
        var afterNext = stream.peek();
        //look if the character if the quote is like the B in '10100010'B
        if (afterNext){
          afterNext = afterNext.toLowerCase();
          if(afterNext == "b" || afterNext == "h" || afterNext == "o")
            stream.next();
        }
        end = true; break;
      }
      escaped = !escaped && next == "\\";
    }
    if (end || !(escaped || multiLineStrings))
      state.tokenize = null;
    return "string";
  };
}

function Context(indented, column, type, align, prev) {
  this.indented = indented;
  this.column = column;
  this.type = type;
  this.align = align;
  this.prev = prev;
}
function pushContext(state, col, type) {
  var indent = state.indented;
  if (state.context && state.context.type == "statement")
    indent = state.context.indented;
  return state.context = new Context(indent, col, type, null, state.context);
}
function popContext(state) {
  var t = state.context.type;
  if (t == ")" || t == "]" || t == "}")
    state.indented = state.context.indented;
  return state.context = state.context.prev;
}

//Interface
const ttcnCfg = {
  name: "ttcn",
  startState: function() {
    return {
      tokenize: null,
      context: new Context(0, 0, "top", false),
      indented: 0,
      startOfLine: true
    };
  },

  token: function(stream, state) {
    var ctx = state.context;
    if (stream.sol()) {
      if (ctx.align == null) ctx.align = false;
      state.indented = stream.indentation();
      state.startOfLine = true;
    }
    if (stream.eatSpace()) return null;
    curPunc = null;
    var style = (state.tokenize || tokenBase)(stream, state);
    if (style == "comment") return style;
    if (ctx.align == null) ctx.align = true;

    if ((curPunc == ";" || curPunc == ":" || curPunc == ",")
        && ctx.type == "statement"){
      popContext(state);
    }
    else if (curPunc == "{") pushContext(state, stream.column(), "}");
    else if (curPunc == "[") pushContext(state, stream.column(), "]");
    else if (curPunc == "(") pushContext(state, stream.column(), ")");
    else if (curPunc == "}") {
      while (ctx.type == "statement") ctx = popContext(state);
      if (ctx.type == "}") ctx = popContext(state);
      while (ctx.type == "statement") ctx = popContext(state);
    }
    else if (curPunc == ctx.type) popContext(state);
    else if (indentStatements && (((ctx.type == "}" || ctx.type == "top")
                                   && curPunc != ';') || (ctx.type == "statement"
                                                          && curPunc == "newstatement")))
      pushContext(state, stream.column(), "statement");
    state.startOfLine = false;
    return style;
  },

  languageData: {
    indentOnInput: /^\s*[{}]$/,
    commentTokens: {line: "#"}
  }
};

export { ttcnCfg };
