//
//      aegis - project change supervisor
//      Copyright (C) 2002-2009, 2011, 2012, 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 <libaegis/change.h>
#include <libaegis/change/branch.h>
#include <aecomplete/complete/private.h>
#include <aecomplete/complete/project/branch.h>
#include <libaegis/project.h>
#include <aecomplete/shell.h>


struct complete_project_branch_ty
{
    complete_ty     inherited;
    project      *pp;
    int             all;
};


static void
destructor(complete_ty *cp)
{
    complete_project_branch_ty *this_thing;

    this_thing = (complete_project_branch_ty *)cp;
    this_thing->pp->free();
}


static void
hunt(project *pp, int all, shell_ty *sh)
{
    string_ty       *prefix;
    long            *list;
    size_t          len;
    size_t          j;

    //
    // See if the project's short version matches.
    //
    prefix = shell_prefix_get(sh);
    nstring s(project_version_short_get(pp));
    if (s.empty())
    {
        s = "-";
    }
    if (s.starts_with(nstring(prefix)))
        shell_emit(sh, s.get_ref());

    //
    // Now hunt the sub-branches.
    //
    change_branch_sub_branch_list_get(pp->change_get(), &list, &len);
    for (j = 0; j < len; ++j)
    {
        change::pointer cp = change::create(pp, list[j]);
        cp->bind_existing();
        if (!all && !cp->is_a_branch())
        {
            continue;
        }
        project *bp = pp->bind_branch(cp);
        hunt(bp, all, sh);
        bp->free();
    }
}


static void
perform(complete_ty *cp, shell_ty *sh)
{
    //
    // Locate the trunk.
    //
    complete_project_branch_ty *this_thing = (complete_project_branch_ty *)cp;
    project *pp = this_thing->pp;

    //
    // Scan all of the branches outwards from the trunk.
    //
    hunt(pp->trunk_get(), this_thing->all, sh);
}


static complete_vtbl_ty vtbl =
{
    destructor,
    perform,
    sizeof(complete_project_branch_ty),
    "project branch",
};


complete_ty *
complete_project_branch(project *pp, int all)
{
    complete_ty     *result;
    complete_project_branch_ty *this_thing;

    result = complete_new(&vtbl);
    this_thing = (complete_project_branch_ty *)result;
    this_thing->pp = pp;
    this_thing->all = !!all;
    return result;
}


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