//  Copyright (c) 2005-2009 Hartmut Kaiser
// 
//  Distributed under the Boost Software License, Version 1.0. (See accompanying 
//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#include <saga/saga.hpp>

#include <saga_c_session.h>
#include <saga_c_util.hpp>

using saga::c_bindings::to_handle;
using saga::c_bindings::from_handle;
using saga::c_bindings::from_object_handle;

///////////////////////////////////////////////////////////////////////////////
saga_session saga_session_create(void)
{
    return to_handle(new (std::nothrow) saga::session());
}

saga_session saga_session_create_object(saga_object obj)
{
    saga::object o(*from_object_handle<saga_session>(obj));
    return to_handle(new (std::nothrow) saga::session(o));
}

void saga_session_delete(saga_session* p)
{
    if (0 != p && 0 != *p) {
        delete from_handle(*p);
        *p = 0;
    }
}

///////////////////////////////////////////////////////////////////////////////
saga_error saga_session_add_context(saga_session s, saga_context ctx)
{
    try {
        from_handle(s)->add_context(*from_handle(ctx));
    }
    catch (saga::exception const& e) {
        return static_cast<saga_error>(e.get_error());
    }
    catch (std::exception const&) {
        return saga_no_success;
    }
    return saga_success;
}

saga_error saga_session_remove_context(saga_session s, saga_context ctx)
{
    try {
        from_handle(s)->remove_context(*from_handle(ctx));
    }
    catch (saga::exception const& e) {
        return static_cast<saga_error>(e.get_error());
    }
    catch (std::exception const&) {
        return saga_no_success;
    }
    return saga_success;
}

saga_context_list saga_session_list_contexts(saga_session s)
{
    try {
        saga_context_list l = new saga_context_list_impl;
        l->data = from_handle(s)->list_contexts();
        return l;
    }
    catch (saga::exception const&) {
        return 0;
    }
    catch (std::exception const&) {
        return 0;
    }
    return 0;
}