#include "config.h"

Result(void) config_findValue(str config_str, str key, str* value, bool throwNotFoundError){
    u32 line_n = 0;
    while(config_str.size > 0){
        line_n++;
        i32 line_end = str_seekChar(config_str, '\n', 0);
        if(line_end < 0)
            line_end = config_str.size - 1;
        str line = str_sliceBefore(config_str, line_end);
        config_str = str_sliceAfter(config_str, line_end + 1);
        
        i32 sep_pos = str_seekChar(line, '=', 1);
        if(sep_pos < 0){
            //not a 'key = value' line
            continue;
        }

        str line_key = str_sliceBefore(line, sep_pos - 1);
        str_trim(&line_key, false);
        if(str_equals(line_key, key)){
            str line_value = str_sliceAfter(line, sep_pos + 1);
            str_trim(&line_value, false);
            *value = line_value;
            return RESULT_VOID;
        }
    }

    if(throwNotFoundError){
        char* key_cstr = str_copy(key).data;
        char* err_msg = sprintf_malloc("can't find key '%s'", key_cstr);
        free(key_cstr);
        return RESULT_ERROR(err_msg, true);
    }
    return RESULT_VOID;
}