#include <cxxtest/TestSuite.h>

#include "userinterface.hh"

#include <string>
#include <fstream>

class UserInterface_test: public CxxTest::TestSuite
{
private:
  std::string config_file_name ;
  std::vector<std::string> config_lines ; // Test config file contents

public:

  UserInterface_test(void)
  {
    // If we cannot open the file, we want to stop the test
    CxxTest::setAbortTestOnFail(true) ;

    // Filling name and contents of the config test file
    config_file_name = "/tmp/UserInterface_test_config_file.csv" ;
    config_lines.push_back("\n") ;
    config_lines.push_back("[server]\n") ;
    config_lines.push_back("\n") ;
    config_lines.push_back("port = 42\n") ;
    config_lines.push_back("\n") ;

    // Opening the file
    std::ofstream config_file ;
    config_file.open(config_file_name.c_str()) ;
    if (! config_file)
      TS_FAIL("Cannot open test config file for creation!") ;

    // Writing contents to the file
    for (std::vector<std::string>::const_iterator i = config_lines.begin() ;
         i != config_lines.end() ; ++i)
      config_file << *i ;

    config_file.close() ;

    // Back to the normal behaviour (i.e. do not abort on fail)
    CxxTest::setAbortTestOnFail(false) ;
  }


  ~UserInterface_test(void)
  {
    // Deleting the test config file
    if (remove(config_file_name.c_str()) == -1)
      TS_WARN("Cannot remove test config file!") ;
  }


  static UserInterface_test* createSuite(void)
  {
    return new UserInterface_test() ;
  }


  static void destroySuite(UserInterface_test *suite)
  {
    delete suite ;
  }


  void test_constructors(void)
  {
    // Note: as --help makes the program exit, we cannot test it.
    const char *argv[] =
    {
      "owlps-positioning", // program name
      "--config-file",
      config_file_name.c_str()
    } ;
    int argc = 3 ;

    UserInterface ui(argc, const_cast<char**>(argv)) ;

    TS_ASSERT(Configuration::is_configured("server.port")) ;
    TS_ASSERT(Configuration::is_configured("config-file")) ;

    TS_ASSERT_EQUALS(Configuration::get_int_value("server.port"), 42) ;
    TS_ASSERT_EQUALS(Configuration::get_string_value("config-file"),
                     config_file_name) ;
  }

} ;