/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#include "cmCTestConfigureCommand.h"

#include <chrono>
#include <cstdlib>
#include <sstream>
#include <string>
#include <vector>

#include <cm/memory>
#include <cmext/string_view>

#include "cmArgumentParser.h"
#include "cmCTest.h"
#include "cmDuration.h"
#include "cmExecutionStatus.h"
#include "cmGeneratedFileStream.h"
#include "cmGlobalGenerator.h"
#include "cmList.h"
#include "cmMakefile.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmValue.h"
#include "cmXMLWriter.h"
#include "cmake.h"

bool cmCTestConfigureCommand::ExecuteConfigure(ConfigureArguments const& args,
                                               cmExecutionStatus& status) const
{
  cmMakefile& mf = status.GetMakefile();

  std::string const buildDirectory = !args.Build.empty()
    ? args.Build
    : mf.GetDefinition("CTEST_BINARY_DIRECTORY");
  if (buildDirectory.empty()) {
    status.SetError("called with no build directory specified.  "
                    "Either use the BUILD argument or set the "
                    "CTEST_BINARY_DIRECTORY variable.");
    return false;
  }

  std::string configureCommand = mf.GetDefinition("CTEST_CONFIGURE_COMMAND");
  if (configureCommand.empty()) {
    cmValue cmakeGenerator = mf.GetDefinition("CTEST_CMAKE_GENERATOR");
    if (!cmNonempty(cmakeGenerator)) {
      status.SetError(
        "called with no configure command specified.  "
        "If this is a  \"built with CMake\" project, set "
        "CTEST_CMAKE_GENERATOR. If not, set CTEST_CONFIGURE_COMMAND.");
      return false;
    }

    std::string const sourceDirectory = !args.Source.empty()
      ? args.Source
      : mf.GetDefinition("CTEST_SOURCE_DIRECTORY");
    if (sourceDirectory.empty() ||
        !cmSystemTools::FileExists(sourceDirectory + "/CMakeLists.txt")) {
      status.SetError("called with invalid source directory.  "
                      "CTEST_SOURCE_DIRECTORY must be set to a directory "
                      "that contains CMakeLists.txt.");
      return false;
    }

    bool const multiConfig = [&]() -> bool {
      cmake* cm = mf.GetCMakeInstance();
      auto gg = cm->CreateGlobalGenerator(cmakeGenerator);
      return gg && gg->IsMultiConfig();
    }();

    bool const buildTypeInOptions =
      args.Options.find("CMAKE_BUILD_TYPE=") != std::string::npos ||
      args.Options.find("CMAKE_BUILD_TYPE:STRING=") != std::string::npos;

    configureCommand = cmStrCat('"', cmSystemTools::GetCMakeCommand(), '"');

    auto const options = cmList(args.Options);
    for (std::string const& option : options) {
      configureCommand += " \"";
      configureCommand += option;
      configureCommand += "\"";
    }

    cmValue cmakeBuildType = mf.GetDefinition("CTEST_CONFIGURATION_TYPE");
    if (!multiConfig && !buildTypeInOptions && cmNonempty(cmakeBuildType)) {
      configureCommand += " \"-DCMAKE_BUILD_TYPE:STRING=";
      configureCommand += cmakeBuildType;
      configureCommand += "\"";
    }

    if (mf.IsOn("CTEST_USE_LAUNCHERS")) {
      configureCommand += " \"-DCTEST_USE_LAUNCHERS:BOOL=TRUE\"";
    }

    configureCommand += " \"-G";
    configureCommand += cmakeGenerator;
    configureCommand += "\"";

    cmValue cmakeGeneratorPlatform =
      mf.GetDefinition("CTEST_CMAKE_GENERATOR_PLATFORM");
    if (cmNonempty(cmakeGeneratorPlatform)) {
      configureCommand += " \"-A";
      configureCommand += *cmakeGeneratorPlatform;
      configureCommand += "\"";
    }

    cmValue cmakeGeneratorToolset =
      mf.GetDefinition("CTEST_CMAKE_GENERATOR_TOOLSET");
    if (cmNonempty(cmakeGeneratorToolset)) {
      configureCommand += " \"-T";
      configureCommand += *cmakeGeneratorToolset;
      configureCommand += "\"";
    }

    configureCommand += " \"-S";
    configureCommand += sourceDirectory;
    configureCommand += "\"";

    configureCommand += " \"-B";
    configureCommand += buildDirectory;
    configureCommand += "\"";
  }

  cmCTestOptionalLog(this->CTest, HANDLER_OUTPUT, "Configure project\n",
                     args.Quiet);

  if (this->CTest->GetShowOnly()) {
    cmCTestOptionalLog(this->CTest, DEBUG,
                       "Configure with command: " << configureCommand << '\n',
                       args.Quiet);
    if (!args.ReturnValue.empty()) {
      mf.AddDefinition(args.ReturnValue, "0");
    }
    return true;
  }

  if (!cmSystemTools::MakeDirectory(buildDirectory)) {
    status.SetError(cmStrCat("cannot create directory ", buildDirectory));
    return false;
  }

  cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
                     "Configure with command: " << configureCommand << '\n',
                     args.Quiet);

  int const submitIndex =
    args.SubmitIndex.empty() ? 0 : std::atoi(args.SubmitIndex.c_str());

  cmGeneratedFileStream logFile;
  this->CTest->StartLogFile("Configure", submitIndex, logFile);

  auto const startTime = std::chrono::system_clock::now();
  auto const startDateTime = this->CTest->CurrentTime();

  std::string output;
  int retVal = 0;
  bool const res = this->CTest->RunMakeCommand(configureCommand, output,
                                               &retVal, buildDirectory.c_str(),
                                               cmDuration::zero(), logFile);

  auto const endTime = std::chrono::system_clock::now();
  auto const endDateTime = this->CTest->CurrentTime();
  auto const elapsedMinutes =
    std::chrono::duration_cast<std::chrono::minutes>(endTime - startTime);

  cmCTestOptionalLog(this->CTest, DEBUG, "End\n", args.Quiet);

  if (!res || retVal) {
    cmCTestLog(this->CTest, ERROR_MESSAGE,
               "Error(s) when configuring the project\n");
  }

  if (!args.ReturnValue.empty()) {
    mf.AddDefinition(args.ReturnValue, std::to_string(retVal));
  }

  if (cmValue value = mf.GetDefinition("CTEST_CHANGE_ID")) {
    this->CTest->SetCTestConfiguration("ChangeId", *value, args.Quiet);
  }

  if (cmValue value = mf.GetDefinition("CTEST_LABELS_FOR_SUBPROJECTS")) {
    this->CTest->SetCTestConfiguration("LabelsForSubprojects", *value,
                                       args.Quiet);
  }

  cmGeneratedFileStream xmlFile;
  if (!this->CTest->StartResultingXML(cmCTest::PartConfigure, "Configure",
                                      submitIndex, xmlFile)) {
    cmCTestLog(this->CTest, ERROR_MESSAGE,
               "Cannot open configure file" << std::endl);
    return false;
  }

  cmXMLWriter xml(xmlFile);
  this->CTest->StartXML(xml, mf.GetCMakeInstance(), args.Append);
  this->CTest->GenerateSubprojectsOutput(xml);
  xml.StartElement("Configure");
  xml.Element("StartDateTime", startDateTime);
  xml.Element("StartConfigureTime", startTime);
  xml.Element("ConfigureCommand", configureCommand);
  xml.Element("Log", output);
  xml.Element("ConfigureStatus", retVal);
  xml.Element("EndDateTime", endDateTime);
  xml.Element("EndConfigureTime", endTime);
  xml.Element("ElapsedMinutes", elapsedMinutes.count());
  xml.EndElement(); // Configure
  this->CTest->EndXML(xml);

  return res;
}

bool cmCTestConfigureCommand::InitialPass(std::vector<std::string> const& args,
                                          cmExecutionStatus& status) const
{
  using Args = ConfigureArguments;
  static auto const parser =
    cmArgumentParser<Args>{ MakeHandlerParser<Args>() } //
      .Bind("OPTIONS"_s, &ConfigureArguments::Options);

  return this->Invoke(parser, args, status, [&](ConfigureArguments& a) {
    return this->ExecuteConfigure(a, status);
  });
}
