#include <sstream>
#include <iomanip>
#include <fstream>
#include <sys/stat.h>
#include <unistd.h>

#include "trick/MonteCarlo.hh"
#include "trick/message_proto.h"
#include "trick/message_type.h"
#include "trick/command_line_protos.h"

/** @par Detailed Design: */
void Trick::MonteCarlo::dryrun() {

    /** <ul><li> For all runs: run the pre run jobs. */
    MonteRun * curr_run;
    while ((curr_run = get_next_dispatch())) {
        prepare_run(curr_run);

        // Write out the input file for this run.
        std::stringstream buffer_stream;
        buffer_stream << run_directory << "/RUN_" << std::setw(5) << std::setfill('0') << curr_run->id;
        std::ofstream of ;
        if ( (access(buffer_stream.str().c_str(), F_OK) == 0) or (mkdir(buffer_stream.str().c_str(), 0755) == 0) ) {
            of.open(std::string(buffer_stream.str() + "/monte_input").c_str()) ;
            of << "# This run can be executed in stand alone (non-Monte Carlo) mode by running\n"
             "# the S_main executable with this file specified as the input file.\n\n" ;
            of << "if (sys.version_info > (3, 0)):\n";
            of << "    exec(open(\"" << command_line_args_get_input_file() << "\").read())\n";
            of << "else:\n";
            of << "    execfile(\"" << command_line_args_get_input_file() << "\")\n\n";
            of << "trick.mc_set_enabled(0)\n";
            for (std::vector<std::string>::size_type j = 0; j < curr_run->variables.size(); ++j) {
                of << curr_run->variables[j] << "\n";
            }
            of << "trick.set_output_dir(\"" << buffer_stream.str() << "\")\n";
            of << "trick.mc_set_current_run(" << curr_run->id << ")" << std::endl ;
            of.close() ;
        }
    }

    /** <ul><li> Run the master shutdown jobs */
    run_queue(&master_shutdown_queue, "in master_shutdown queue") ;

    message_publish(MSG_INFO, "Monte [Master] Dry run complete.\n") ;

    exit(0) ;
}