/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/
#include "cmMessageCommand.h"

#include "cmMessenger.h"

// cmLibraryCommand
bool cmMessageCommand::InitialPass(std::vector<std::string> const& args,
                                   cmExecutionStatus&)
{
  if (args.empty()) {
    this->SetError("called with incorrect number of arguments");
    return false;
  }
  std::vector<std::string>::const_iterator i = args.begin();

  cmake::MessageType type = cmake::MESSAGE;
  bool status = false;
  bool fatal = false;
  if (*i == "SEND_ERROR") {
    type = cmake::FATAL_ERROR;
    ++i;
  } else if (*i == "FATAL_ERROR") {
    fatal = true;
    type = cmake::FATAL_ERROR;
    ++i;
  } else if (*i == "WARNING") {
    type = cmake::WARNING;
    ++i;
  } else if (*i == "AUTHOR_WARNING") {
    if (this->Makefile->IsSet("CMAKE_SUPPRESS_DEVELOPER_ERRORS") &&
        !this->Makefile->IsOn("CMAKE_SUPPRESS_DEVELOPER_ERRORS")) {
      fatal = true;
      type = cmake::AUTHOR_ERROR;
    } else if (!this->Makefile->IsOn("CMAKE_SUPPRESS_DEVELOPER_WARNINGS")) {
      type = cmake::AUTHOR_WARNING;
    } else {
      return true;
    }
    ++i;
  } else if (*i == "STATUS") {
    status = true;
    ++i;
  } else if (*i == "DEPRECATION") {
    if (this->Makefile->IsOn("CMAKE_ERROR_DEPRECATED")) {
      fatal = true;
      type = cmake::DEPRECATION_ERROR;
    } else if ((!this->Makefile->IsSet("CMAKE_WARN_DEPRECATED") ||
                this->Makefile->IsOn("CMAKE_WARN_DEPRECATED"))) {
      type = cmake::DEPRECATION_WARNING;
    } else {
      return true;
    }
    ++i;
  }

  std::string message = cmJoin(cmMakeRange(i, args.end()), std::string());

  if (type != cmake::MESSAGE) {
    // we've overriden the message type, above, so display it directly
    cmMessenger* m = this->Makefile->GetMessenger();
    m->DisplayMessage(type, message, this->Makefile->GetBacktrace());
  } else {
    if (status) {
      this->Makefile->DisplayStatus(message.c_str(), -1);
    } else {
      cmSystemTools::Message(message.c_str());
    }
  }
  if (fatal) {
    cmSystemTools::SetFatalErrorOccured();
  }
  return true;
}
