/*============================================================================
  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.
============================================================================*/

#ifndef cmCTest_h
#define cmCTest_h

#include <cmConfigure.h>

#include <cmsys/String.hxx>
#include <map>
#include <set>
#include <sstream>
#include <string>
#include <time.h>
#include <vector>

class cmCTestGenericHandler;
class cmCTestStartCommand;
class cmGeneratedFileStream;
class cmMakefile;
class cmXMLWriter;

#define cmCTestLog(ctSelf, logType, msg)                                      \
  do {                                                                        \
    std::ostringstream cmCTestLog_msg;                                        \
    cmCTestLog_msg << msg;                                                    \
    (ctSelf)->Log(cmCTest::logType, __FILE__, __LINE__,                       \
                  cmCTestLog_msg.str().c_str());                              \
  } while (0)

#define cmCTestOptionalLog(ctSelf, logType, msg, suppress)                    \
  do {                                                                        \
    std::ostringstream cmCTestLog_msg;                                        \
    cmCTestLog_msg << msg;                                                    \
    (ctSelf)->Log(cmCTest::logType, __FILE__, __LINE__,                       \
                  cmCTestLog_msg.str().c_str(), suppress);                    \
  } while (0)

/** \class cmCTest
 * \brief Represents a ctest invocation.
 *
 * This class represents a ctest invocation. It is the top level class when
 * running ctest.
 *
 */
class cmCTest
{
  friend class cmCTestRunTest;
  friend class cmCTestMultiProcessHandler;

public:
  /** Enumerate parts of the testing and submission process.  */
  enum Part
  {
    PartStart,
    PartUpdate,
    PartConfigure,
    PartBuild,
    PartTest,
    PartCoverage,
    PartMemCheck,
    PartSubmit,
    PartNotes,
    PartExtraFiles,
    PartUpload,
    PartCount // Update names in constructor when adding a part
  };

  /** Representation of one part.  */
  struct PartInfo
  {
    PartInfo()
      : Enabled(false)
    {
    }

    void SetName(const std::string& name) { this->Name = name; }
    const std::string& GetName() const { return this->Name; }

    void Enable() { this->Enabled = true; }
    operator bool() const { return this->Enabled; }

    std::vector<std::string> SubmitFiles;

  private:
    bool Enabled;
    std::string Name;
  };
#ifdef CMAKE_BUILD_WITH_CMAKE
  enum HTTPMethod
  {
    HTTP_GET,
    HTTP_POST,
    HTTP_PUT
  };

  /**
   * Perform an HTTP request.
   */
  static int HTTPRequest(std::string url, HTTPMethod method,
                         std::string& response, std::string const& fields = "",
                         std::string const& putFile = "", int timeout = 0);
#endif

  /** Get a testing part id from its string name.  Returns PartCount
      if the string does not name a valid part.  */
  Part GetPartFromName(const char* name);

  typedef std::vector<cmsys::String> VectorOfStrings;
  typedef std::set<std::string> SetOfStrings;

  /** Process Command line arguments */
  int Run(std::vector<std::string>&, std::string* output = CM_NULLPTR);

  /**
   * Initialize and finalize testing
   */
  bool InitializeFromCommand(cmCTestStartCommand* command);
  void Finalize();

  /**
   * Process the dashboard client steps.
   *
   * Steps are enabled using SetTest()
   *
   * The execution of the steps (or #Part) should look like this:
   *
   * /code
   * ctest foo;
   * foo.Initialize();
   * // Set some things on foo
   * foo.ProcessSteps();
   * foo.Finalize();
   * /endcode
   *
   * \sa Initialize(), Finalize(), Part, PartInfo, SetTest()
   */
  int ProcessSteps();

  /**
   * A utility function that returns the nightly time
   */
  struct tm* GetNightlyTime(std::string const& str, bool tomorrowtag);

  /**
   * Is the tomorrow tag set?
   */
  bool GetTomorrowTag() { return this->TomorrowTag; }

  /**
   * Try to run tests of the project
   */
  int TestDirectory(bool memcheck);

  /** what is the configuraiton type, e.g. Debug, Release etc. */
  std::string const& GetConfigType();
  double GetTimeOut() { return this->TimeOut; }
  void SetTimeOut(double t) { this->TimeOut = t; }

  double GetGlobalTimeout() { return this->GlobalTimeout; }

  /** how many test to run at the same time */
  int GetParallelLevel() { return this->ParallelLevel; }
  void SetParallelLevel(int);

  unsigned long GetTestLoad() { return this->TestLoad; }
  void SetTestLoad(unsigned long);

  /**
   * Check if CTest file exists
   */
  bool CTestFileExists(const std::string& filename);
  bool AddIfExists(Part part, const char* file);

  /**
   * Set the cmake test
   */
  bool SetTest(const char*, bool report = true);

  /**
   * Set the cmake test mode (experimental, nightly, continuous).
   */
  void SetTestModel(int mode);
  int GetTestModel() { return this->TestModel; }

  std::string GetTestModelString();
  static int GetTestModelFromString(const char* str);
  static std::string CleanString(const std::string& str);
  std::string GetCTestConfiguration(const std::string& name);
  void SetCTestConfiguration(const char* name, const char* value,
                             bool suppress = false);
  void EmptyCTestConfiguration();

  /**
   * constructor and destructor
   */
  cmCTest();
  ~cmCTest();

  /** Set the notes files to be created. */
  void SetNotesFiles(const char* notes);

  void PopulateCustomVector(cmMakefile* mf, const std::string& definition,
                            std::vector<std::string>& vec);
  void PopulateCustomInteger(cmMakefile* mf, const std::string& def, int& val);

  /** Get the current time as string */
  std::string CurrentTime();

  /** tar/gzip and then base 64 encode a file */
  std::string Base64GzipEncodeFile(std::string const& file);
  /** base64 encode a file */
  std::string Base64EncodeFile(std::string const& file);

  /**
   * Return the time remaining that the script is allowed to run in
   * seconds if the user has set the variable CTEST_TIME_LIMIT. If that has
   * not been set it returns 1e7 seconds
   */
  double GetRemainingTimeAllowed();

  /**
   * Open file in the output directory and set the stream
   */
  bool OpenOutputFile(const std::string& path, const std::string& name,
                      cmGeneratedFileStream& stream, bool compress = false);

  /** Should we only show what we would do? */
  bool GetShowOnly();

  bool ShouldUseHTTP10() { return this->UseHTTP10; }

  bool ShouldPrintLabels() { return this->PrintLabels; }

  bool ShouldCompressTestOutput();
  bool ShouldCompressMemCheckOutput();
  bool CompressString(std::string& str);

  std::string GetCDashVersion();

  std::string GetStopTime() { return this->StopTime; }
  void SetStopTime(std::string const& time);

  /** Used for parallel ctest job scheduling */
  std::string GetScheduleType() { return this->ScheduleType; }
  void SetScheduleType(std::string type) { this->ScheduleType = type; }

  /** The max output width */
  int GetMaxTestNameWidth() const;
  void SetMaxTestNameWidth(int w) { this->MaxTestNameWidth = w; }

  /**
   * Run a single executable command and put the stdout and stderr
   * in output.
   *
   * If verbose is false, no user-viewable output from the program
   * being run will be generated.
   *
   * If timeout is specified, the command will be terminated after
   * timeout expires. Timeout is specified in seconds.
   *
   * Argument retVal should be a pointer to the location where the
   * exit code will be stored. If the retVal is not specified and
   * the program exits with a code other than 0, then the this
   * function will return false.
   *
   * If the command has spaces in the path the caller MUST call
   * cmSystemTools::ConvertToRunCommandPath on the command before passing
   * it into this function or it will not work.  The command must be correctly
   * escaped for this to with spaces.
   */
  bool RunCommand(const char* command, std::string* stdOut,
                  std::string* stdErr, int* retVal = CM_NULLPTR,
                  const char* dir = CM_NULLPTR, double timeout = 0.0);

  /**
   * Clean/make safe for xml the given value such that it may be used as
   * one of the key fields by CDash when computing the buildid.
   */
  static std::string SafeBuildIdField(const std::string& value);

  /** Start CTest XML output file */
  void StartXML(cmXMLWriter& xml, bool append);

  /** End CTest XML output file */
  void EndXML(cmXMLWriter& xml);

  /**
   * Run command specialized for make and configure. Returns process status
   * and retVal is return value or exception.
   */
  int RunMakeCommand(const char* command, std::string& output, int* retVal,
                     const char* dir, int timeout, std::ostream& ofs);

  /** Return the current tag */
  std::string GetCurrentTag();

  /** Get the path to the build tree */
  std::string GetBinaryDir();

  /**
   * Get the short path to the file.
   *
   * This means if the file is in binary or
   * source directory, it will become /.../relative/path/to/file
   */
  std::string GetShortPathToFile(const char* fname);

  enum
  {
    EXPERIMENTAL,
    NIGHTLY,
    CONTINUOUS
  };

  /** provide some more detailed info on the return code for ctest */
  enum
  {
    UPDATE_ERRORS = 0x01,
    CONFIGURE_ERRORS = 0x02,
    BUILD_ERRORS = 0x04,
    TEST_ERRORS = 0x08,
    MEMORY_ERRORS = 0x10,
    COVERAGE_ERRORS = 0x20,
    SUBMIT_ERRORS = 0x40
  };

  /** Are we producing XML */
  bool GetProduceXML();
  void SetProduceXML(bool v);

  /**
   * Run command specialized for tests. Returns process status and retVal is
   * return value or exception. If environment is non-null, it is used to set
   * environment variables prior to running the test. After running the test,
   * environment variables are restored to their previous values.
   */
  int RunTest(std::vector<const char*> args, std::string* output, int* retVal,
              std::ostream* logfile, double testTimeOut,
              std::vector<std::string>* environment);

  /**
   * Execute handler and return its result. If the handler fails, it returns
   * negative value.
   */
  int ExecuteHandler(const char* handler);

  /**
   * Get the handler object
   */
  cmCTestGenericHandler* GetHandler(const char* handler);
  cmCTestGenericHandler* GetInitializedHandler(const char* handler);

  /**
   * Set the CTest variable from CMake variable
   */
  bool SetCTestConfigurationFromCMakeVariable(cmMakefile* mf,
                                              const char* dconfig,
                                              const std::string& cmake_var,
                                              bool suppress = false);

  /** Make string safe to be send as an URL */
  static std::string MakeURLSafe(const std::string&);

  /** Decode a URL to the original string.  */
  static std::string DecodeURL(const std::string&);

  /**
   * Should ctect configuration be updated. When using new style ctest
   * script, this should be true.
   */
  void SetSuppressUpdatingCTestConfiguration(bool val)
  {
    this->SuppressUpdatingCTestConfiguration = val;
  }

  /**
   * Add overwrite to ctest configuration.
   *
   * The format is key=value
   */
  void AddCTestConfigurationOverwrite(const std::string& encstr);

  /** Create XML file that contains all the notes specified */
  int GenerateNotesFile(const VectorOfStrings& files);

  /** Submit extra files to the server */
  bool SubmitExtraFiles(const char* files);
  bool SubmitExtraFiles(const VectorOfStrings& files);

  /** Set the output log file name */
  void SetOutputLogFileName(const char* name);

  /** Set the visual studio or Xcode config type */
  void SetConfigType(const char* ct);

  /** Various log types */
  enum
  {
    DEBUG = 0,
    OUTPUT,
    HANDLER_OUTPUT,
    HANDLER_PROGRESS_OUTPUT,
    HANDLER_VERBOSE_OUTPUT,
    WARNING,
    ERROR_MESSAGE,
    OTHER
  };

  /** Add log to the output */
  void Log(int logType, const char* file, int line, const char* msg,
           bool suppress = false);

  /** Get the version of dart server */
  int GetDartVersion() { return this->DartVersion; }
  int GetDropSiteCDash() { return this->DropSiteCDash; }

  /** Add file to be submitted */
  void AddSubmitFile(Part part, const char* name);
  std::vector<std::string> const& GetSubmitFiles(Part part)
  {
    return this->Parts[part].SubmitFiles;
  }
  void ClearSubmitFiles(Part part) { this->Parts[part].SubmitFiles.clear(); }

  /**
   * Read the custom configuration files and apply them to the current ctest
   */
  int ReadCustomConfigurationFileTree(const char* dir, cmMakefile* mf);

  std::vector<std::string>& GetInitialCommandLineArguments()
  {
    return this->InitialCommandLineArguments;
  }

  /** Set the track to submit to */
  void SetSpecificTrack(const char* track);
  const char* GetSpecificTrack();

  void SetFailover(bool failover) { this->Failover = failover; }
  bool GetFailover() { return this->Failover; }

  void SetBatchJobs(bool batch = true) { this->BatchJobs = batch; }
  bool GetBatchJobs() { return this->BatchJobs; }

  bool GetVerbose() { return this->Verbose; }
  bool GetExtraVerbose() { return this->ExtraVerbose; }

  /** Direct process output to given streams.  */
  void SetStreams(std::ostream* out, std::ostream* err)
  {
    this->StreamOut = out;
    this->StreamErr = err;
  }
  void AddSiteProperties(cmXMLWriter& xml);
  bool GetLabelSummary() { return this->LabelSummary; }

  std::string GetCostDataFile();

  const std::map<std::string, std::string>& GetDefinitions()
  {
    return this->Definitions;
  }

  /** Return the number of times a test should be run */
  int GetTestRepeat() { return this->RepeatTests; }

  /** Return true if test should run until fail */
  bool GetRepeatUntilFail() { return this->RepeatUntilFail; }

private:
  int RepeatTests;
  bool RepeatUntilFail;
  std::string ConfigType;
  std::string ScheduleType;
  std::string StopTime;
  bool NextDayStopTime;
  bool Verbose;
  bool ExtraVerbose;
  bool ProduceXML;
  bool LabelSummary;
  bool UseHTTP10;
  bool PrintLabels;
  bool Failover;
  bool BatchJobs;

  bool ForceNewCTestProcess;

  bool RunConfigurationScript;

  // flag for lazy getter (optimization)
  bool ComputedCompressTestOutput;
  bool ComputedCompressMemCheckOutput;

  int GenerateNotesFile(const char* files);

  void DetermineNextDayStop();

  // these are helper classes
  typedef std::map<std::string, cmCTestGenericHandler*> t_TestingHandlers;
  t_TestingHandlers TestingHandlers;

  bool ShowOnly;

  /** Map of configuration properties */
  typedef std::map<std::string, std::string> CTestConfigurationMap;

  std::string CTestConfigFile;
  // TODO: The ctest configuration should be a hierarchy of
  // configuration option sources: command-line, script, ini file.
  // Then the ini file can get re-loaded whenever it changes without
  // affecting any higher-precedence settings.
  CTestConfigurationMap CTestConfiguration;
  CTestConfigurationMap CTestConfigurationOverwrites;
  PartInfo Parts[PartCount];
  typedef std::map<std::string, Part> PartMapType;
  PartMapType PartMap;

  std::string CurrentTag;
  bool TomorrowTag;

  int TestModel;
  std::string SpecificTrack;

  double TimeOut;

  double GlobalTimeout;

  int LastStopTimeout;

  int MaxTestNameWidth;

  int ParallelLevel;
  bool ParallelLevelSetInCli;

  unsigned long TestLoad;

  int CompatibilityMode;

  // information for the --build-and-test options
  std::string BinaryDir;

  std::string NotesFiles;

  bool InteractiveDebugMode;

  bool ShortDateFormat;

  bool CompressXMLFiles;
  bool CompressTestOutput;
  bool CompressMemCheckOutput;

  void InitStreams();
  std::ostream* StreamOut;
  std::ostream* StreamErr;

  void BlockTestErrorDiagnostics();

  /**
   * Initialize a dashboard run in the given build tree.  The "command"
   * argument is non-NULL when running from a command-driven (ctest_start)
   * dashboard script, and NULL when running from the CTest command
   * line.  Note that a declarative dashboard script does not actually
   * call this method because it sets CTEST_COMMAND to drive a build
   * through the ctest command line.
   */
  int Initialize(const char* binary_dir, cmCTestStartCommand* command);

  /** parse the option after -D and convert it into the appropriate steps */
  bool AddTestsForDashboardType(std::string& targ);

  /** read as "emit an error message for an unknown -D value" */
  void ErrorMessageUnknownDashDValue(std::string& val);

  /** add a variable definition from a command line -D value */
  bool AddVariableDefinition(const std::string& arg);

  /** parse and process most common command line arguments */
  bool HandleCommandLineArguments(size_t& i, std::vector<std::string>& args,
                                  std::string& errormsg);

  /** hande the -S -SP and -SR arguments */
  void HandleScriptArguments(size_t& i, std::vector<std::string>& args,
                             bool& SRArgumentSpecified);

  /** Reread the configuration file */
  bool UpdateCTestConfiguration();

  /** Create note from files. */
  int GenerateCTestNotesOutput(cmXMLWriter& xml, const VectorOfStrings& files);

  /** Check if the argument is the one specified */
  bool CheckArgument(const std::string& arg, const char* varg1,
                     const char* varg2 = CM_NULLPTR);

  /** Output errors from a test */
  void OutputTestErrors(std::vector<char> const& process_output);

  /** Handle the --test-action command line argument */
  bool HandleTestActionArgument(const char* ctestExec, size_t& i,
                                const std::vector<std::string>& args);

  /** Handle the --test-model command line argument */
  bool HandleTestModelArgument(const char* ctestExec, size_t& i,
                               const std::vector<std::string>& args);

  int RunCMakeAndTest(std::string* output);
  int ExecuteTests();

  bool SuppressUpdatingCTestConfiguration;

  bool Debug;
  bool ShowLineNumbers;
  bool Quiet;

  int DartVersion;
  bool DropSiteCDash;

  std::vector<std::string> InitialCommandLineArguments;

  int SubmitIndex;

  cmGeneratedFileStream* OutputLogFile;
  int OutputLogFileLastTag;

  bool OutputTestOutputOnTestFailure;

  std::map<std::string, std::string> Definitions;
};

class cmCTestLogWrite
{
public:
  cmCTestLogWrite(const char* data, size_t length)
    : Data(data)
    , Length(length)
  {
  }

  const char* Data;
  size_t Length;
};

inline std::ostream& operator<<(std::ostream& os, const cmCTestLogWrite& c)
{
  if (!c.Length) {
    return os;
  }
  os.write(c.Data, c.Length);
  os.flush();
  return os;
}

#endif
