#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/wdt.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "Ethernet/socket.h"
#include "Ethernet/wizchip_conf.h"

#include "Internet/MQTT/mqtt_interface.h"
#include "Internet/MQTT/MQTTClient.h"

#include "avrIOhelper/io-helper.h"
#include "millis.h"
#include "uart.h"
#include "spi.h"
#include "mqtt.h"
#include "common.h"

#include "notaus.h"
#include "kraftsensor.h"
#include "taenzer.h"
#include "abzug.h"
#include "spule.h"

Client mqtt_client;

//***********Prologue for fast WDT disable & and save reason of reset/power-up: BEGIN
uint8_t mcucsr_mirror __attribute__ ((section (".noinit")));

// This is for fast WDT disable & and save reason of reset/power-up
void get_mcusr(void) \
         __attribute__((naked)) \
         __attribute__((section(".init3")));
void get_mcusr(void)
{
    mcucsr_mirror = MCUSR;
    MCUSR = 0;
    wdt_disable();
}
//***********Prologue for fast WDT disable & and save reason of reset/power-up: END

//FUNC headers
static void avr_init(void);
void print_network_information(void);

void IO_LIBRARY_Init(void) {
    uint8_t bufSize[] = {2, 2, 2, 2, 2, 2, 2, 2};

    reg_wizchip_cs_cbfunc(spi_select, spi_deselect);
    reg_wizchip_spi_cbfunc(spi_read, spi_write);
    //reg_wizchip_spiburst_cbfunc(spi_rb_burst, spi_wb_burst);

    wizchip_init(bufSize, bufSize);
    wizchip_setnetinfo(&netInfo);
    //wizchip_setinterruptmask(IK_SOCK_0);
}

static void avr_init()
{
    // Initialize device here.
    // WatchDog INIT
    wdt_enable(WDTO_8S);  // set up wdt reset interval 2 second
    wdt_reset(); // wdt reset ~ every <2000ms

    timer0_init();// Timer0 millis engine init
    uart_init();

    sei(); //re-enable global interrupts

    return;
}

// send processvalues that are constantly changing
void send_values(void){
    char msg[10];

    /* Taenzer */
    if(kraftsensor_valid)
        ltoa(kraftsensor_value, msg, 10);
    else
        msg[0] = '0';
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/taenzer/pv_kraft", msg, strlen(msg));

    int8_t temp = taenzer_state.pos / 10000;
    ltoa(temp, msg, 10);
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/taenzer/pos", msg, strlen(msg));

    itoa((250*60)/ICR5, msg, 10);
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/spule/speed", msg, strlen(msg));

    sprintf(msg, "%d", windings);
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/spule/windings", msg, strlen(msg));

    sprintf(msg, "%ld", spule_trans_pos);
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/spule/trans_pos", msg, strlen(msg));
}

// send settings wich only change on buttion press
void send_settings(void){
    //TODO only send on change or improve performance otherwise
    char msg[10];

    /* Abzug */
    sprintf(msg, "%d", abzug_speed);
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/abzug/speed", msg, strlen(msg));

    if(TCCR3B & (1<<CS31))
        sprintf(msg, "True");
    else
        sprintf(msg, "False");
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/abzug/onoff", msg, strlen(msg));

    /* Taenzer */
    itoa(taenzer_state.force_setpoint, msg, 10);
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/taenzer/sp_kraft", msg, strlen(msg));

    /* Spule */
    if(TCCR5B & (1<<CS31))
        sprintf(msg, "True");
    else
        sprintf(msg, "False");
    mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/spule/onoff", msg, strlen(msg));

    ///* Uptime */
    //sprintf(msg, "%ld", millis()/1000);
    //mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/uptime", msg, strlen(msg));
}



int main()
{
    // INIT MCU
    avr_init();
    spi_init(); //SPI Master, MODE0, 4Mhz(DIV4), CS_PB.3=HIGH - suitable for WIZNET 5x00(1/2/5)
    kraftsensor_init();

    printf("moin!\n\r");

    set_Output(LED_FEHLER, ON);

    timer1_init(); //translation
    timer3_init(); //abzug
    timer4_init(); //taenzer
    timer5_init(); //spule

    ioHelperInitBuffer();
    ioHelperIoConf();

    //Wizchip WIZ5500 Ethernet initialize
    IO_LIBRARY_Init(); //After that ping must working
    print_network_information();

#if PLC_MQTT_ENABLED
    //****************MQTT client initialize
    //Find MQTT broker and connect with it
    uint8_t mqtt_buf[100];
    int32_t mqtt_rc = 0;
    Network mqtt_network;
    mqtt_network.my_socket = SOCK_MQTT;

    printf(">>Trying connect to MQTT broker: %d.%d.%d.%d ..\r\n", MQTT_targetIP[0], MQTT_targetIP[1], MQTT_targetIP[2], MQTT_targetIP[3]);
    NewNetwork(&mqtt_network);
    ConnectNetwork(&mqtt_network, MQTT_targetIP, 1883);
    MQTTClient(&mqtt_client, &mqtt_network, 1000, mqtt_buf, 100, mqtt_readBuffer, MQTT_BUFFER_SIZE);

    //Connection to MQTT broker
    MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
    data.willFlag = 0;
    data.MQTTVersion = 4;//3;
    data.clientID.cstring = (char*)"controllino_aufspuleinheit";
    data.username.cstring = (char*)"Aufspuleinheit";
    data.password.cstring = (char*)"\0";
    data.keepAliveInterval = 10;
    data.cleansession = 1;
    mqtt_rc = MQTTConnect(&mqtt_client, &data);
    if (mqtt_rc == SUCCESSS)
    {
        printf("++MQTT Connected SUCCESS: %ld\r\n", mqtt_rc);
    }
    else
    {
        printf("--MQTT Connected ERROR: %ld\r\n", mqtt_rc);
        while(1); //Reboot the board
    }

    char SubString[] = "/Filamentanlage/05_Abzug/set/#";
    mqtt_rc = MQTTSubscribe(&mqtt_client, SubString, QOS0, messageArrived);
    printf("Subscribed (%s) %ld\r\n", SubString, mqtt_rc);
#endif

    ioHelperSetBit(outStates, RELAY_INTERLOCK,  1);
    ioHelperSetBit(outStatesBlinking,  LED_PLC_OK,  1);

    uint32_t timer_blink_outs = millis();
    uint32_t timer_send_info = millis();
    uint32_t timer_modbus_poll = millis();

    set_Output(LED_FEHLER, OFF);

    set_Output(BitPH5, ON); //DEBUG
    
#if PLC_MQTT_ENABLED
    send_settings();
#endif

    while(1){
        wdt_reset(); // WDT reset at least every sec

        ioHelperReadPins();
        ioHelperDebounce();
        ioHelperEdgeDetector();

        // Toggle all outs which are set to blinking
        if(millis() - timer_blink_outs > 500){
            outStates[0] ^= outStatesBlinking[0];
            outStates[1] ^= outStatesBlinking[1];
            outStates[2] ^= outStatesBlinking[2];
            outStates[3] ^= outStatesBlinking[3];
            timer_blink_outs = millis();
            //printf("icr5: %u\n", ICR5);
        }

        if(millis() - timer_modbus_poll > 20){
            do_kraftsensor();   // 8ms !!!
            timer_modbus_poll += 20;
        }

#if PLC_MQTT_ENABLED
        // send misc info
        if(millis() - timer_send_info > 200){
            timer_send_info += 200;
            send_values(); // 10ms
            //send_info(); // 27ms every 200ms
        }
#endif

        do_notaus();
        do_abzug();
        do_taenzer();
        do_spule();

#if PLC_MQTT_ENABLED
        ioHelperSetBit(outStates, LED_BUS_OK, 1);
        ioHelperSetOuts();
        MQTTYield(&mqtt_client, 1); //blocking call
        ioHelperSetBit(outStates, LED_BUS_OK, 0);
#endif
        ioHelperSetOuts(); //40us
    }
    return 0;
}

void print_network_information()
{

    uint8_t tmpstr[6] = {0,};
    ctlwizchip(CW_GET_ID,(void*)tmpstr); // Get WIZCHIP name
    printf("\r\n=======================================\r\n");
    printf(" WIZnet chip:  %s \r\n", tmpstr);
    printf("=======================================\r\n");

    wiz_NetInfo gWIZNETINFO;
    wizchip_getnetinfo(&gWIZNETINFO);
    if (gWIZNETINFO.dhcp == NETINFO_STATIC)
        printf("STATIC IP\r\n");
    else
        printf("DHCP IP\r\n");
    printf("Mac address: %02x:%02x:%02x:%02x:%02x:%02x\n\r",gWIZNETINFO.mac[0],gWIZNETINFO.mac[1],gWIZNETINFO.mac[2],gWIZNETINFO.mac[3],gWIZNETINFO.mac[4],gWIZNETINFO.mac[5]);
    printf("IP address : %d.%d.%d.%d\n\r",gWIZNETINFO.ip[0],gWIZNETINFO.ip[1],gWIZNETINFO.ip[2],gWIZNETINFO.ip[3]);
    printf("SM Mask	   : %d.%d.%d.%d\n\r",gWIZNETINFO.sn[0],gWIZNETINFO.sn[1],gWIZNETINFO.sn[2],gWIZNETINFO.sn[3]);
    printf("Gate way   : %d.%d.%d.%d\n\r",gWIZNETINFO.gw[0],gWIZNETINFO.gw[1],gWIZNETINFO.gw[2],gWIZNETINFO.gw[3]);
    printf("DNS Server : %d.%d.%d.%d\n\r",gWIZNETINFO.dns[0],gWIZNETINFO.dns[1],gWIZNETINFO.dns[2],gWIZNETINFO.dns[3]);
}