/*
** Copyright (C) 2008-2021 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
**
** 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, 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, write to the Free Software Foundation,
** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**
*/

#include <config.h>

#include <glib.h>
#include <glib-object.h>
#include <locale.h>

#include "mu-config.hh"
#include "mu-cmd.hh"
#include "mu-runtime.hh"
#include "utils/mu-utils.hh"

using namespace Mu;

static void
show_version (void)
{
        const char* blurb =
                "mu (mail indexer/searcher) version " VERSION "\n"
                "Copyright (C) 2008-2021 Dirk-Jan C. Binnema\n"
                "License GPLv3+: GNU GPL version 3 or later "
                "<http://gnu.org/licenses/gpl.html>.\n"
                "This is free software: you are free to change "
                "and redistribute it.\n"
                "There is NO WARRANTY, to the extent permitted by law.";

        g_print ("%s\n", blurb);
}


static void
handle_error (MuConfig *conf, MuError merr, GError **err)
{
        if (!(err && *err))
                return;

        using Color = MaybeAnsi::Color;
        MaybeAnsi col{conf ? !conf->nocolor : false};

        if (*err)
                std::cerr << col.fg(Color::Red)	<< "error" << col.reset() << ": "
                          << col.fg(Color::BrightYellow)
                          << ((*err) ? (*err)->message : "something when wrong")
                          << "\n";

        std::cerr << col.fg(Color::Green);

        switch ((*err)->code) {
        case MU_ERROR_XAPIAN_CANNOT_GET_WRITELOCK:
                std::cerr << "Maybe mu is already running?\n";
                break;

        case MU_ERROR_XAPIAN_NEEDS_REINDEX:
                std::cerr << "Database needs (re)indexing.\n"
                          << "try 'mu index' "
                          << "(see mu-index(1) for details)\n";
                return;
        case MU_ERROR_IN_PARAMETERS:
                if (conf && mu_config_cmd_is_valid(conf->cmd))
                        mu_config_show_help (conf->cmd);
                break;
        case MU_ERROR_SCRIPT_NOT_FOUND:
                std::cerr << "See the mu manpage for commands, or "
                          << "'mu script' for the scripts\n";
                break;
        case MU_ERROR_XAPIAN_CANNOT_OPEN:
                std::cerr << "Please (re)initialize mu with 'mu init' "
                          << "see mu-init(1) for details\n";
                return;
        case MU_ERROR_XAPIAN_SCHEMA_MISMATCH:
                std::cerr << "Please (re)initialize mu with 'mu init' "
                          << "see mu-init(1) for details\n";
                return;
        default:
                break; /* nothing to do */
        }

        std::cerr << col.reset();
}


int
main (int argc, char *argv[])
{
        GError	 *err;
        MuError	  rv;
        MuConfig *conf;

        setlocale (LC_ALL, "");

        err = NULL;
        rv  = MU_OK;

        conf = mu_config_init (&argc, &argv, &err);
        if (!conf) {
                rv = err ? (MuError)err->code : MU_ERROR;
                goto cleanup;
        } else if (conf->version) {
                show_version ();
                goto cleanup;
        }

        /* nothing to do */
        if (conf->cmd == MU_CONFIG_CMD_NONE)
                return 0;

        if (!mu_runtime_init (conf->muhome, PACKAGE_NAME, conf->debug)) {
                mu_config_uninit (conf);
                return 1;
        }

        rv = mu_cmd_execute (conf, &err);

cleanup:
        handle_error (conf, rv, &err);
        g_clear_error (&err);

        mu_config_uninit (conf);
        mu_runtime_uninit ();

        return rv;
}