//
// aegis - project change supervisor
// Copyright (C) 2004, 2005 Walter Franzini
// Copyright (C) 2007, 2008, 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 <common/ac/assert.h>
#include <common/ac/string.h>

#include <common/uuidentifier.h>
#include <common/trace.h>

#include <aedist/change/functor/invent_build.h>


change_functor_inventory_builder::~change_functor_inventory_builder()
{
    if (pp)
        pp->free();
    pp = NULL;
    stp = NULL;
}


change_functor_inventory_builder::change_functor_inventory_builder(
    bool a_include_branches,
    bool a_all_changes_flag,
    bool a_ignore_uuid,
    project *a_pp,
    symtab<change> *a_stp
) :
    change_functor(a_include_branches, a_all_changes_flag),
    inou(a_ignore_uuid),
    stp(a_stp),
    pp(a_pp->copy())
{
}


void
change_functor_inventory_builder::operator()(const change::pointer &cp)
{
    cstate_ty *cstate_data = cp->cstate_get();
    assert(cstate_data);
    time_t cp_ipass_when =
        change_when_get(cp, cstate_history_what_integrate_pass);
    trace_time(cp_ipass_when);
    if (cstate_data->uuid)
    {
        //
        // We do not override a UUID which is already present.  It comes
        // from the original-UUID attribute so it is more recent than
        // the change the UUID belongs to.  Thus is should be a better
        // merge point to select, it should generate smaller (logical)
        // conflicts.
        //
        change *cp2 = stp->query(nstring(cstate_data->uuid));
        if (cp2)
        {
            time_t cp2_ipass_when =
                change_when_get(cp2, cstate_history_what_integrate_pass);
            trace_time(cp2_ipass_when);
            if (cp_ipass_when > cp2_ipass_when)
            {
                stp->assign(cstate_data->uuid, cp.get());
                cp->reference_count_up();
            }
        }
        else
        {
            stp->assign(cstate_data->uuid, cp.get());
            cp->reference_count_up();
        }
    }

    if (inou)
        return;

    if (!cstate_data->attribute)
        return;

    for (size_t j = 0; j < cstate_data->attribute->length; ++j)
    {
        attributes_ty *ap = cstate_data->attribute->list[j];
        if
        (
            ap->name
        &&
            0 == strcasecmp(ap->name->str_text, ORIGINAL_UUID)
        &&
            ap->value
        &&
            // users can edit, we will check
            universal_unique_identifier_valid(ap->value)
        )
        {
            change *cp2 = stp->query(ap->value);
            if (cp2)
            {
                time_t cp2_ipass_when =
                    change_when_get(cp2, cstate_history_what_integrate_pass);
                trace_time(cp2_ipass_when);
                if (cp_ipass_when > cp2_ipass_when)
                {
                    stp->assign(ap->value, cp2);
                    cp2->reference_count_up();
                    continue;
                }
            }

            stp->assign(ap->value, cp.get());
            cp->reference_count_up();
        }
    }
}


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