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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2013 Olaf Wintermann. 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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 <stdlib.h>

#include "../public/nsapi.h"

#include <cx/string.h>

#include "httplistener.h"
#include "log.h"
#include "configmanager.h"

static ServerConfiguration *current_config = NULL;


static conf_global_vars_s global_vars;

void init_configuration_manager() {
    /* init parser */
    init_server_config_parser();
}

NSAPI_PUBLIC conf_global_vars_s* conf_getglobals() {
    return &global_vars;
}

int cfgmgr_load_config(CfgManager *mgr) {
    ZERO(mgr, sizeof(CfgManager));
    ServerConfiguration *config = load_server_conf(mgr, "config/server.conf");
    
    if(!config) {
        return -1;
    }
    
    mgr->cfg = config;
    
    return 0;
}

int cfgmgr_apply_config(CfgManager *mgr) {
    // stage 2 config loading
    if(!apply_server_conf(mgr)) {
        return 1;
    }
    
    // some extra steps required if there is already a configuration loaded
    if(current_config) {
        if(migrate_server_conf(current_config, mgr->cfg)) {
            return 1;
        }
        
        cfg_unref(current_config);
    }
    
    current_config = mgr->cfg;
    
    return 0;
}

ServerConfiguration *cfgmgr_get_server_config() {
    return current_config;
}