/*============================================================================
  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 "cmDefinePropertyCommand.h"

#include "cmState.h"
#include "cmake.h"

bool cmDefinePropertyCommand::InitialPass(std::vector<std::string> const& args,
                                          cmExecutionStatus&)
{
  if (args.size() < 1) {
    this->SetError("called with incorrect number of arguments");
    return false;
  }

  // Get the scope in which to define the property.
  cmProperty::ScopeType scope;
  if (args[0] == "GLOBAL") {
    scope = cmProperty::GLOBAL;
  } else if (args[0] == "DIRECTORY") {
    scope = cmProperty::DIRECTORY;
  } else if (args[0] == "TARGET") {
    scope = cmProperty::TARGET;
  } else if (args[0] == "SOURCE") {
    scope = cmProperty::SOURCE_FILE;
  } else if (args[0] == "TEST") {
    scope = cmProperty::TEST;
  } else if (args[0] == "VARIABLE") {
    scope = cmProperty::VARIABLE;
  } else if (args[0] == "CACHED_VARIABLE") {
    scope = cmProperty::CACHED_VARIABLE;
  } else {
    std::ostringstream e;
    e << "given invalid scope " << args[0] << ".  "
      << "Valid scopes are "
      << "GLOBAL, DIRECTORY, TARGET, SOURCE, "
      << "TEST, VARIABLE, CACHED_VARIABLE.";
    this->SetError(e.str());
    return false;
  }

  // Parse remaining arguments.
  bool inherited = false;
  enum Doing
  {
    DoingNone,
    DoingProperty,
    DoingBrief,
    DoingFull
  };
  Doing doing = DoingNone;
  for (unsigned int i = 1; i < args.size(); ++i) {
    if (args[i] == "PROPERTY") {
      doing = DoingProperty;
    } else if (args[i] == "BRIEF_DOCS") {
      doing = DoingBrief;
    } else if (args[i] == "FULL_DOCS") {
      doing = DoingFull;
    } else if (args[i] == "INHERITED") {
      doing = DoingNone;
      inherited = true;
    } else if (doing == DoingProperty) {
      doing = DoingNone;
      this->PropertyName = args[i];
    } else if (doing == DoingBrief) {
      this->BriefDocs += args[i];
    } else if (doing == DoingFull) {
      this->FullDocs += args[i];
    } else {
      std::ostringstream e;
      e << "given invalid argument \"" << args[i] << "\".";
      this->SetError(e.str());
      return false;
    }
  }

  // Make sure a property name was found.
  if (this->PropertyName.empty()) {
    this->SetError("not given a PROPERTY <name> argument.");
    return false;
  }

  // Make sure documentation was given.
  if (this->BriefDocs.empty()) {
    this->SetError("not given a BRIEF_DOCS <brief-doc> argument.");
    return false;
  }
  if (this->FullDocs.empty()) {
    this->SetError("not given a FULL_DOCS <full-doc> argument.");
    return false;
  }

  // Actually define the property.
  this->Makefile->GetState()->DefineProperty(
    this->PropertyName, scope, this->BriefDocs.c_str(), this->FullDocs.c_str(),
    inherited);

  return true;
}