/*
 * Copyright 2022 Olaf Wintermann
 *
 * Permission is hereby granted, free of charge, to any person obtaining a 
 * copy of this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the 
 * Software is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 * DEALINGS IN THE SOFTWARE.
 */

#include "utils.h"

#include <ucx/string.h>


char* util_concat_path(const char *url_base, const char *p) {
    sstr_t base = sstr((char*)url_base);
    sstr_t path;
    if(p) {
        path = sstr((char*)p);
    } else {
        path = sstrn("", 0);
    }
    
    int add_separator = 0;
    if(base.length != 0 && base.ptr[base.length-1] == '/') {
        if(path.ptr[0] == '/') {
            base.length--;
        }
    } else {
        if(path.length == 0 || path.ptr[0] != '/') {
            add_separator = 1;
        }
    }
    
    sstr_t url;
    if(add_separator) {
        url = sstrcat(3, base, sstr("/"), path);
    } else {
        url = sstrcat(2, base, path);
    }
    
    return url.ptr;
}