package_state.c

/*-
 * Copyright (c) 2009-2012 Juan Romero Pardines.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include "xbps_api_impl.h"

struct state {
        const char *string;
        pkg_state_t number;
};

static const struct state states[] = {
        { "unpacked",           XBPS_PKG_STATE_UNPACKED },
        { "installed",          XBPS_PKG_STATE_INSTALLED },
        { "broken",             XBPS_PKG_STATE_BROKEN },
        { "half-removed",       XBPS_PKG_STATE_HALF_REMOVED },
        { "not-installed",      XBPS_PKG_STATE_NOT_INSTALLED },
        { NULL,                 0 }
};


/**
 * @file lib/package_state.c
 * @brief Package state handling routines
 * @defgroup pkgstates Package state handling functions
 */

static int
set_new_state(prop_dictionary_t dict, pkg_state_t state)
{
        const struct state *stp;

        assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);

        for (stp = states; stp->string != NULL; stp++)
                if (state == stp->number)
                        break;

        if (stp->string == NULL)
                return EINVAL;

        if (!prop_dictionary_set_cstring_nocopy(dict, "state", stp->string))
                return EINVAL;

        return 0;
}

static pkg_state_t
get_state(prop_dictionary_t dict)
{
        const struct state *stp;
        const char *state_str;

        assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);

        if (!prop_dictionary_get_cstring_nocopy(dict,
            "state", &state_str))
                return 0;

        for (stp = states; stp->string != NULL; stp++)
                if (strcmp(state_str, stp->string) == 0)
                        break;

        return stp->number;
}

int
xbps_pkg_state_installed(struct xbps_handle *xhp,
                         const char *pkgname,
                         pkg_state_t *state)
{
        prop_dictionary_t pkgd;

        assert(pkgname != NULL);
        assert(state != NULL);

        pkgd = xbps_pkgdb_get_pkg(xhp, pkgname);
        if (pkgd == NULL)
                return ENOENT;

        *state = get_state(pkgd);
        if (*state == 0)
                return EINVAL;

        return 0;
}

int
xbps_pkg_state_dictionary(prop_dictionary_t dict, pkg_state_t *state)
{
        assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);
        assert(state != NULL);

        if ((*state = get_state(dict)) == 0)
                return EINVAL;

        return 0;
}

int
xbps_set_pkg_state_dictionary(prop_dictionary_t dict, pkg_state_t state)
{
        assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);

        return set_new_state(dict, state);
}

static int
set_pkg_objs(prop_dictionary_t pkgd, const char *name, const char *version)
{
        char *pkgver;

        if (!prop_dictionary_set_cstring_nocopy(pkgd, "pkgname", name))
                return EINVAL;

        if (!prop_dictionary_set_cstring_nocopy(pkgd, "version", version))
                return EINVAL;

        pkgver = xbps_xasprintf("%s-%s", name, version);
        assert(pkgver != NULL);

        if (!prop_dictionary_set_cstring_nocopy(pkgd, "pkgver", pkgver)) {
                free(pkgver);
                return EINVAL;
        }
        free(pkgver);

        return 0;
}

int
xbps_set_pkg_state_installed(struct xbps_handle *xhp,
                             const char *pkgname,
                             const char *version,
                             pkg_state_t state)
{
        prop_dictionary_t pkgd;
        int rv = 0;

        assert(pkgname != NULL);

        pkgd = xbps_pkgdb_get_pkg(xhp, pkgname);
        if (pkgd == NULL) {
                pkgd = prop_dictionary_create();
                if (pkgd == NULL)
                        return ENOMEM;

                if ((rv = set_pkg_objs(pkgd, pkgname, version)) != 0) {
                        prop_object_release(pkgd);
                        return rv;
                }
                if ((rv = set_new_state(pkgd, state)) != 0) {
                        prop_object_release(pkgd);
                        return rv;
                }
                if (!xbps_add_obj_to_array(xhp->pkgdb, pkgd)) {
                        prop_object_release(pkgd);
                        return EINVAL;
                }
        } else {
                if ((rv = set_new_state(pkgd, state)) != 0)
                        return rv;

                if ((rv = xbps_array_replace_dict_by_name(xhp->pkgdb,
                    pkgd, pkgname)) != 0)
                        return rv;
        }

        return rv;
}