#ifndef COAP_H
#define COAP_H

#include "Arduino.h"

namespace coap {

    enum Type {
        CONFIRMABLE = 0,
        NON_CONFIRMABLE = 1,
        ACKNOWELEDGMENT = 2,
        RESET = 3
    };
    enum Code {
        EMPTY = 0x00,   /* 0.00 */
        GET = 0x01,     /* 0.01 */
        POST = 0x02,    /* 0.02 */
        PUT = 0x03,     /* 0.03 */
        DELETE = 0x04,  /* 0.04 */
        CONTENT = 0x45, /* 2.05 */
        NOT_FOUND = 0x84,/*4.04 */
        METHOD_NOT_ALLOWED = 0x85   /* 4.05 */
    };

    class CoapMessage {
        private:
            char vertkl;
            char code;
            char id[2];
        public:
            uint8_t getVersion();
            uint8_t getType();
            uint8_t getTKL();
            uint8_t getCode();
            const char* getMID();
            const char* getPayload();

            int getOptionDelta(const unsigned char* option);
            int getOptionLength(const unsigned char* option);
            const char* getOptionValue(const unsigned char* option);
            int getOptionValueOffset(const unsigned char* option);
            const unsigned char* getOptions();

            void getUriPath(char* output_buffer, const char* last);


    };

    int coap_server(char* output_buffer, const char* input_buffer, int len);

}

#endif