//
// aegis - project change supervisor
// Copyright (C) 1997, 1999, 2001-2008, 2014 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see
// <http://www.gnu.org/licenses/>.
//

#include <common/ac/stdio.h>
#include <common/ac/stdlib.h>

#include <common/env.h>
#include <common/language.h>
#include <common/progname.h>
#include <common/quit.h>
#include <common/rsrc_limits.h>
#include <common/str_list.h>
#include <common/trace.h>
#include <libaegis/aer/func/change.h>
#include <libaegis/aer/func/project.h>
#include <libaegis/aer/list.h>
#include <libaegis/aer/parse.h>
#include <libaegis/arglex/change.h>
#include <libaegis/arglex/project.h>
#include <libaegis/arglex2.h>
#include <libaegis/change/identifier.h>
#include <libaegis/help.h>
#include <libaegis/os.h>
#include <libaegis/sub.h>
#include <libaegis/version.h>
#include <libaegis/zero.h>


//
// NAME
//      report_usage
//
// SYNOPSIS
//      void report_usage(void);
//
// DESCRIPTION
//      The report_usage function is used to
//      briefly describe how to used the 'aegis -RePorT' command.
//

static void
report_usage(void)
{
    const char      *progname;

    progname = progname_get();
    fprintf(stderr, "usage: %s [ <option>... ] <report-name>\n", progname);
    fprintf
    (
        stderr,
        "       %s [ <option>... ] -File <filename>\n",
        progname
    );
    fprintf(stderr, "       %s -List [ <option>... ]\n", progname);
    fprintf(stderr, "       %s -Help\n", progname);
    quit(1);
}


//
// NAME
//      report_help
//
// SYNOPSIS
//      void report_help(void);
//
// DESCRIPTION
//      The report_help function is used to
//      describe in detail how to use the 'aegis -RePorT' command.
//

static void
report_help(void)
{
        help("aer", report_usage);
}


//
// NAME
//      report_main
//
// SYNOPSIS
//      void report_main(void);
//
// DESCRIPTION
//      The report_main function is used to
//      report a change in the "being developed" or "being integrated" states.
//      It extracts what to do from the command line.
//

static void
report_main(void)
{
    trace(("report_main()\n{\n"));
    change_identifier cid;
    string_ty *infile = 0;
    string_ty *outfile = 0;
    string_list_ty arg;
    while (arglex_token != arglex_token_eoln)
    {
        switch (arglex_token)
        {
        default:
            generic_argument(report_usage);
            continue;

        case arglex_token_baseline:
        case arglex_token_change:
        case arglex_token_delta:
        case arglex_token_delta_date:
        case arglex_token_delta_from_change:
        case arglex_token_grandparent:
        case arglex_token_project:
        case arglex_token_trunk:
            cid.command_line_parse(report_usage);
            continue;

        case arglex_token_file:
            if (infile)
                duplicate_option(report_usage);
            switch (arglex())
            {
            default:
                option_needs_file(arglex_token_file, report_usage);
                // NOTREACHED

            case arglex_token_string:
                trace(("accepting -File option\n"));
                infile = str_from_c(arglex_value.alv_string);
                break;

            case arglex_token_stdio:
                infile = str_from_c("");
                break;
            }
            break;

        case arglex_token_output:
            if (outfile)
                duplicate_option(report_usage);
            if (arglex() != arglex_token_string)
                option_needs_file(arglex_token_output, report_usage);
            outfile = str_from_c(arglex_value.alv_string);
            break;

        case arglex_token_string:
        case arglex_token_number:
            {
                string_ty *s = str_from_c(arglex_value.alv_string);
                arg.push_back(s);
                str_free(s);
            }
            break;
        }
        arglex();
    }
    cid.command_line_check(report_usage);
    if (infile)
    {
        trace(("prepending report file name to args\n"));
        arg.push_front(infile);
    }
    else if (arg.size() == 0)
    {
        sub_context_ty  *scp;

        scp = sub_context_new();
        error_intl(scp, i18n("no report name"));
        report_usage();
        // NOTREACHED
    }

    //
    // pass the arguments to the report
    //
    if (infile)
    {
        trace(("setting input file name\n"));
        report_parse_filename_set(infile);
    }
    if (outfile)
    {
        trace(("setting output file name\n"));
        report_parse_output_set(outfile);
    }
    report_parse_project_set(cid);
    report_parse_change_set(cid);
    report_parse_argument_set(&arg);

    //
    // run the report
    //
    report_run();

    //
    // clean up and go home
    //
    if (infile)
        str_free(infile);
    if (outfile)
        str_free(outfile);
    trace(("}\n"));
}


//
// NAME
//      report
//
// SYNOPSIS
//      void report(void);
//
// DESCRIPTION
//      The report function is used to
//      dispatch the 'aegis -RePorT' command to the relevant functionality.
//      Where it goes depends on the command line.
//

int
main(int argc, char **argv)
{
    resource_limits_init();
    os_become_init_mortal();
    arglex2_init(argc, argv);
    env_initialize();
    language_init();
    switch (arglex())
    {
    default:
        report_main();
        break;

    case arglex_token_help:
        report_help();
        break;

    case arglex_token_list:
        report_list(report_usage);
        break;

    case arglex_token_version:
        version();
        break;
    }
    quit(0);
    return 0;
}


// vim: set ts=8 sw=4 et :