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// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder

#include "conf.h"
#include "libconfig.h"

#include "../common/showmsg.h" // ShowError

int conf_read_file(config_t *config, const char *config_filename)
{
    config_init(config);
    if (!config_read_file(config, config_filename)) {
        ShowError("%s:%d - %s\n", config_error_file(config),
                  config_error_line(config), config_error_text(config));
        config_destroy(config);
        return 1;
    }
    return 0;
}

//
// Functions to copy settings from libconfig/contrib
//
static void config_setting_copy_simple(config_setting_t *parent, const config_setting_t *src);
static void config_setting_copy_elem(config_setting_t *parent, const config_setting_t *src);
static void config_setting_copy_aggregate(config_setting_t *parent, const config_setting_t *src);
int config_setting_copy(config_setting_t *parent, const config_setting_t *src);

void config_setting_copy_simple(config_setting_t *parent, const config_setting_t *src)
{
    if (config_setting_is_aggregate(src)) {
        config_setting_copy_aggregate(parent, src);
    } else {
        config_setting_t *set = config_setting_add(parent, config_setting_name(src), config_setting_type(src));

        if (set == NULL)
            return;

        if (CONFIG_TYPE_INT == config_setting_type(src)) {
            config_setting_set_int(set, config_setting_get_int(src));
            config_setting_set_format(set, src->format);
        } else if (CONFIG_TYPE_INT64 == config_setting_type(src)) {
            config_setting_set_int64(set, config_setting_get_int64(src));
            config_setting_set_format(set, src->format);
        } else if (CONFIG_TYPE_FLOAT == config_setting_type(src)) {
            config_setting_set_float(set, config_setting_get_float(src));
        } else if (CONFIG_TYPE_STRING == config_setting_type(src)) {
            config_setting_set_string(set, config_setting_get_string(src));
        } else if (CONFIG_TYPE_BOOL == config_setting_type(src)) {
            config_setting_set_bool(set, config_setting_get_bool(src));
        }
    }
}

void config_setting_copy_elem(config_setting_t *parent, const config_setting_t *src)
{
    config_setting_t *set = NULL;

    if (config_setting_is_aggregate(src))
        config_setting_copy_aggregate(parent, src);
    else if (CONFIG_TYPE_INT == config_setting_type(src)) {
        set = config_setting_set_int_elem(parent, -1, config_setting_get_int(src));
        config_setting_set_format(set, src->format);
    } else if (CONFIG_TYPE_INT64 == config_setting_type(src)) {
        set = config_setting_set_int64_elem(parent, -1, config_setting_get_int64(src));
        config_setting_set_format(set, src->format);
    } else if (CONFIG_TYPE_FLOAT == config_setting_type(src)) {
        config_setting_set_float_elem(parent, -1, config_setting_get_float(src));
    } else if (CONFIG_TYPE_STRING == config_setting_type(src)) {
        config_setting_set_string_elem(parent, -1, config_setting_get_string(src));
    } else if (CONFIG_TYPE_BOOL == config_setting_type(src)) {
        config_setting_set_bool_elem(parent, -1, config_setting_get_bool(src));
    }
}

void config_setting_copy_aggregate(config_setting_t *parent, const config_setting_t *src)
{
    config_setting_t *newAgg;
    int i, n;

    newAgg = config_setting_add(parent, config_setting_name(src), config_setting_type(src));

    if (newAgg == NULL)
        return;

    n = config_setting_length(src);

    for (i = 0; i < n; i++) {
        if (config_setting_is_group(src)) {
            config_setting_copy_simple(newAgg, config_setting_get_elem(src, i));
        } else {
            config_setting_copy_elem(newAgg, config_setting_get_elem(src, i));
        }
    }
}

int config_setting_copy(config_setting_t *parent, const config_setting_t *src)
{
    if (!config_setting_is_group(parent) && !config_setting_is_list(parent))
        return CONFIG_FALSE;

    if (config_setting_is_aggregate(src)) {
        config_setting_copy_aggregate(parent, src);
    } else {
        config_setting_copy_simple(parent, src);
    }
    return CONFIG_TRUE;
}