#include "util.h"
#include <3ds.h>
#include <jansson.h>
#include <sstream>
#include <string>

// from http://www.zedwood.com/article/cpp-urlencode-function
std::string urlencode(std::string s) {
    static const char lookup[] = "0123456789abcdef";
    std::stringstream e;
    for (int i = 0, ix = s.length(); i < ix; i++) {
        const char& c = s[i];
        if ((48 <= c && c <= 57) ||   // 0-9
            (65 <= c && c <= 90) ||   // abc...xyz
            (97 <= c && c <= 122) ||  // ABC...XYZ
            (c == '-' || c == '_' || c == '.' || c == '~')) {
            e << c;
        } else {
            e << '%';
            e << lookup[(c & 0xF0) >> 4];
            e << lookup[(c & 0x0F)];
        }
    }
    return e.str();
}

char* json_object_get_string_value(json_t* obj, const char* key) {
    if (!obj) {
        return NULL;
    }
    json_t* keyObj = json_object_get(obj, key);
    if (!keyObj) {
        return NULL;
    }
    return (char*)json_string_value(keyObj);
}