/**
 * @file       BlynkParticleBearSSL.h
 * @author     Volodymyr Shymanskyy
 * @license    This project is released under the MIT License (MIT)
 * @copyright  Copyright (c) 2022 Volodymyr Shymanskyy
 * @date       Mar 2022
 * @brief
 *
 */

#ifndef BlynkParticleBearSSL_h
#define BlynkParticleBearSSL_h

#include <BlynkApiParticle.h>
#include <Blynk/BlynkProtocol.h>

#include <ArduinoBearSSL.h>

class BlynkTransportParticle
{
public:
    BlynkTransportParticle()
        : client(tcpclient), domain(NULL), port(0)
    { }

    static
    unsigned long getTime() {
      return 1654280000; // TODO
    }

    void begin(IPAddress a, uint16_t p) {
        domain = NULL;
        port = p;
        addr = a;
    }

    void begin(const char* d, uint16_t p) {
        domain = d;
        port = p;
    }

    bool connect() {
        ArduinoBearSSL.onGetTime(getTime);
        if (domain) {
            BLYNK_LOG4(BLYNK_F("Connecting to "), domain, ':', port);
            if (client.connect(domain, port)) {
                BLYNK_LOG("Certificate OK");
                return true;
            } else {
                BLYNK_LOG("Connection failed");
            }
        } else {
            BLYNK_LOG_IP("Connecting to ", addr);
            //return (1 == client.connect(addr, port));
        }
        return 0;
    }

    void disconnect() { client.stop(); }

    size_t read(void* buf, size_t len) {
        return client.readBytes((char*)buf, len);
    }

    size_t write(const void* buf, size_t len) {
        return client.write((const uint8_t*)buf, len);
    }

    void flush() { client.flush(); }
    bool connected() { return client.connected(); }
    int available() { return client.available(); }

private:
    TCPClient     tcpclient;
    BearSSLClient client;
    IPAddress   addr;
    const char* domain;
    uint16_t    port;
};

class BlynkParticle
    : public BlynkProtocol<BlynkTransportParticle>
{
    typedef BlynkProtocol<BlynkTransportParticle> Base;
public:
    BlynkParticle(BlynkTransportParticle& transp)
        : Base(transp)
    {}

    void config(const char* auth,
                const char* domain = BLYNK_DEFAULT_DOMAIN,
                uint16_t port      = BLYNK_DEFAULT_PORT)
    {
        Base::begin(auth);
        this->conn.begin(domain, port);
    }

    void config(const char* auth,
                IPAddress addr,
                uint16_t port      = BLYNK_DEFAULT_PORT)
    {
        Base::begin(auth);
        this->conn.begin(addr, port);
    }

    void begin( const char* auth,
                const char* domain = BLYNK_DEFAULT_DOMAIN,
                uint16_t port      = BLYNK_DEFAULT_PORT)
    {
        BlynkDelay(3000); // Give the board time to settle
        config(auth, domain, port);
        while(this->connect() != true) {}
    }

    void begin( const char* auth,
                IPAddress addr,
                uint16_t port      = BLYNK_DEFAULT_PORT)
    {
        BlynkDelay(3000); // Give the board time to settle
        config(auth, addr, port);
        while(this->connect() != true) {}
    }
private:

};

#endif