MessagesForMacintosh/nuklear_app.c

// {42, 4, 336, 506}
#define WINDOW_WIDTH 502
#define WINDOW_HEIGHT 294

#define NK_ZERO_COMMAND_MEMORY
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
// #define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_IMPLEMENTATION
#define NK_QUICKDRAW_IMPLEMENTATION
// #define NK_BUTTON_TRIGGER_ON_RELEASE
#define NK_MEMSET memset
#define NK_MEMCPY memcpy

// #define MESSAGES_FOR_MACINTOSH_DEBUGGING

// based on https://github.com/mr21/strsplit.c/blob/master/strsplit.c
static char** _strsplit( const char* s, const char* delim, int* nb ) {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: _strsplit");
    #endif
    void* data;
    char* _s = ( char* )s;
    const char** ptrs;
    int
        ptrsSize,
        nbWords = 1,
        sLen = strlen( s ),
        delimLen = strlen( delim );

    while ( ( _s = strstr( _s, delim ) ) ) {
        _s += delimLen;
        ++nbWords;
    }
    ptrsSize = ( nbWords + 1 ) * sizeof( char* );
    ptrs =
    data = malloc( ptrsSize + sLen + 1 );
    if ( data ) {
        *ptrs =
        _s = strcpy( ( ( char* )data ) + ptrsSize, s );
        if ( nbWords > 1 ) {
            while ( ( _s = strstr( _s, delim ) ) ) {
                *_s = '\0';
                _s += delimLen;
                *++ptrs = _s;
            }
        }
        *++ptrs = NULL;
    }
    if ( nb ) {
        *nb = data ? nbWords : 0;
    }
    return data;
}

char** strsplit( const char* s, const char* delim ) {
    return _strsplit( s, delim, NULL );
}

char** strsplit_count( const char* s, const char* delim, int* nb ) {
    return _strsplit( s, delim, nb );
}

void aFailed(char *file, int line) {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: aFailed");
    #endif
    
    MoveTo(10, 10);
    char textoutput[255];
    sprintf(textoutput, "%s:%d", file, line);
    writeSerialPortDebug(boutRefNum, "assertion failure");
    writeSerialPortDebug(boutRefNum, textoutput);
    // hold the program - we want to be able to read the text! assuming anything after the assert would be a crash
    while (true) {}
}

#define MAX_CHAT_MESSAGES 17
#define MAX_RECEIVE_SIZE 32767 // this has a corresponding value in coprocessor.c
#define MAX_FRIENDLY_NAME_LENGTH 64

Boolean firstOrMouseMove = true;
Boolean gotMouseEvent = false;
char *activeChat;
char *activeChatMessages;
char *box_input_buffer;
char *chatFriendlyNames;
char *ip_input_buffer;
char *jsFunctionResponse;
char *chatCountFunctionResponse;
char *tempChatCountFunctionResponse;
char *previousChatCountFunctionResponse;
char *new_message_input_buffer;
int activeMessageCounter = 0;
int chatFriendlyNamesCounter = 0;
int coprocessorLoaded = 0;
int forceRedrawChats= 2; // this is how many 'iterations' of the chat list UI that we need to see every element for, starting with 2 to draw the UI appropriately
int forceRedrawMessages = 2; // same as above but for messages
int ipAddressSet = 0;
int mouse_x;
int mouse_y;
int sendNewChat = 0;
short box_input_len;
short box_len;
short new_message_input_buffer_len;
static short ip_input_buffer_len;
struct nk_rect chats_window_size;
struct nk_rect graphql_input_window_size;
struct nk_rect message_input_window_size;
struct nk_rect messages_window_size;
struct nk_context *ctx;

#define NK_ASSERT(e) \
    if (!(e)) \
        aFailed(__FILE__, __LINE__)

#include <Types.h>
#include "nuklear_quickdraw.h"
#include "coprocessorjs.h"

void refreshNuklearApp(Boolean blankInput);

void getMessagesFromjsFunctionResponse() {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: getMessagesFromjsFunctionResponse");
    #endif

    for (int i = 0; i < MAX_CHAT_MESSAGES; i++) {

        memset(&activeChatMessages[i * 2048], '\0', 2048);
    }

    activeMessageCounter = 0;

    char *token = (char *)strtokm(jsFunctionResponse, "ENDLASTMESSAGE");

    // loop through the string to extract all other tokens
    while (token != NULL) {

        sprintf(&activeChatMessages[activeMessageCounter * 2048], "%s", token);
        token = (char *)strtokm(NULL, "ENDLASTMESSAGE");
        activeMessageCounter++;
    }

    return;
}

// function to send messages in chat
void sendMessage() {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: sendMessage");
    #endif

    char output[2048];
    sprintf(output, "%s&&&%.*s", activeChat, box_input_len, box_input_buffer);

    memset(box_input_buffer, '\0', 2048);
    box_input_len = 0;

    // this was an attempt to get the text in the textbox to go away... doesn't really work for a few more redraws
    // so actually just makes things slower:
    // refreshNuklearApp(1);

    callFunctionOnCoprocessor("sendMessage", output, jsFunctionResponse);

    getMessagesFromjsFunctionResponse();

    forceRedrawMessages = 3;

    return;
}

// set up function to get available chat (fill buttons on the left hand side)
// interval is set by the event loop in mac_main
void getChats() {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: getChats");
    #endif

    callFunctionOnCoprocessor("getChats", "", jsFunctionResponse);

    char *token = (char *)strtokm(jsFunctionResponse, ",");

    while (token != NULL) {

        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
            writeSerialPortDebug(boutRefNum, token);
        #endif
        sprintf(&chatFriendlyNames[chatFriendlyNamesCounter++ * MAX_FRIENDLY_NAME_LENGTH], "%s", token); 
        token = (char *)strtokm(NULL, ",");
    }

    return;
}

void sendIPAddressToCoprocessor() {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: sendIPAddressToCoprocessor");
    #endif

    char output[2048];
    sprintf(output, "%.*s", ip_input_buffer_len, ip_input_buffer);

    callFunctionOnCoprocessor("setIPAddress", output, jsFunctionResponse);

    // now that the IP is set, we can get all of our chats
    getChats();

    return;
}

// set up function to get messages in current chat
// limit to recent messages 
// figure out pagination?? button on the top that says "get previous chats"?, TODO
void getMessages(char *thread, int page) {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: getMessages");
    #endif

    char output[68];
    sprintf(output, "%s&&&%d", thread, page);

    callFunctionOnCoprocessor("getMessages", output, jsFunctionResponse);
    getMessagesFromjsFunctionResponse();

    forceRedrawMessages = 3;

    return;
}

// from https://stackoverflow.com/a/4770992
Boolean prefix(const char *pre, const char *str) {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: prefix");
    #endif
    return strncmp(pre, str, strlen(pre)) == 0;
}

void getChatCounts() {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: getChatCounts");
    #endif

    callFunctionOnCoprocessor("getChatCounts", "", chatCountFunctionResponse);

    #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
        writeSerialPortDebug(boutRefNum, "getChatCounts");
        writeSerialPortDebug(boutRefNum, chatCountFunctionResponse);
    #endif

    // bail out if the responses ARE equal
    if (!strcmp(chatCountFunctionResponse, previousChatCountFunctionResponse)) {

        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
            writeSerialPortDebug(boutRefNum, "no need to update current chat count");
        #endif

        return;
    }

    #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
        // TODO: if you hear a random sysbeep, it's probably caused by a mismatch here
        // potentially due to a bad serial port read or allocation. needs more investigation
        writeSerialPortDebug(boutRefNum, "update current chat count");
        writeSerialPortDebug(boutRefNum, chatCountFunctionResponse);
        writeSerialPortDebug(boutRefNum, previousChatCountFunctionResponse);
    #endif

    strcpy(previousChatCountFunctionResponse, chatCountFunctionResponse);

    SysBeep(1);

    strcpy(tempChatCountFunctionResponse, chatCountFunctionResponse);
    int chatCount = 0;

    char **chats = strsplit_count(tempChatCountFunctionResponse, ",", &chatCount);

    for (int chatLoopCounter = 0; chatLoopCounter < chatCount; chatLoopCounter++) {

        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING 
            writeSerialPortDebug(boutRefNum, "DUMMY DELETE: update current chat count loop");
            writeSerialPortDebug(boutRefNum, chats[chatLoopCounter]);
        #endif
    }

    // loop through the string to extract all other tokens
    for (int chatLoopCounter = 0; chatLoopCounter < chatCount; chatLoopCounter++) {

        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING 
            writeSerialPortDebug(boutRefNum, "update current chat count loop");
            writeSerialPortDebug(boutRefNum, chats[chatLoopCounter]);
        #endif

        // chats[chatLoopCounter] should be in format NAME:::COUNT

        strcpy(tempChatCountFunctionResponse, chatCountFunctionResponse);
        int results = 0;

        char **chatUpdate = strsplit_count((char *)chats[chatLoopCounter], ":::", &results);

        if (results != 2) {

            #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING 
                char x[255];
                sprintf(x, "ERROR: chat update mismatch splitting on ':::', expected 2 results, got: %d: %s -- bailing out", results, chats[chatLoopCounter]);
                writeSerialPortDebug(boutRefNum, x);

                for (int errorResultCounter = 0; errorResultCounter < results; errorResultCounter++) {

                    writeSerialPortDebug(boutRefNum, chatUpdate[errorResultCounter]);

                    char y[255];
                    sprintf(y, "%d/%d: '%s'", errorResultCounter, results, chatUpdate[errorResultCounter]);
                    writeSerialPortDebug(boutRefNum, y);
                }
            #endif

            continue;
        }

        short count = atoi((char *)chatUpdate[1]);

        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
            char x[255];
            sprintf(x, "name: %s, countString: %s, count: %d", chatUpdate[0], chatUpdate[1], count);
            writeSerialPortDebug(boutRefNum, x);
        #endif

        for (int i = 0; i < chatFriendlyNamesCounter; i++) {

            if (strstr(&chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH], " new) ") != NULL) {

                char chatName[64];
                sprintf(chatName, "%.63s", &chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH]);

                int updateResults = 0;

                char **updatePieces = strsplit_count(chatName, " new) ", &updateResults);

                if (updateResults != 2) {

                    #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
                        char x[255];
                        sprintf(x, "ERROR: individual chat update mismatch splitting on ' new) ', expected 2 results, got: %d: %s -- bailing out", updateResults, chatName);
                        writeSerialPortDebug(boutRefNum, x);

                        for (int errorResultCounter = 0; errorResultCounter < updateResults; errorResultCounter++) {

                            char y[255];
                            sprintf(y, "%d/%d: '%s'", errorResultCounter, updateResults, updatePieces[errorResultCounter]);
                            writeSerialPortDebug(boutRefNum, y);
                        }
                    #endif

                    continue;
                }

                if (prefix((char *)updatePieces[1], (char *)chatUpdate[0])) {

                    #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
                        writeSerialPortDebug(boutRefNum, "match1");
                        writeSerialPortDebug(boutRefNum, chatUpdate[0]);
                    #endif

                    if (count == 0 || !strcmp(activeChat, (char *)chatUpdate[0])) {

                        sprintf(&chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH], "%.63s", (char *)chatUpdate[0]);
                    } else {

                        sprintf(&chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH], "(%d new) %.63s", count, (char *)chatUpdate[0]);
                    }
                    break;
                }
            } else if (prefix(&chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH], (char *)chatUpdate[0])) {

                #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
                    writeSerialPortDebug(boutRefNum, "match2");
                    writeSerialPortDebug(boutRefNum, chatUpdate[0]);
                #endif

                if (count == 0 || !strcmp(activeChat, (char *)chatUpdate[0])) {

                    sprintf(&chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH], "%.63s", (char *)chatUpdate[0]);
                } else {

                    sprintf(&chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH], "(%d new) %.63s", count, (char *)chatUpdate[0]);
                }
                break;
            }
        }
    }

    forceRedrawChats = 3;

    return;
}

void getHasNewMessagesInChat(char *thread) {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: getHasNewMessagesInChat");
    #endif

    char output[68];
    sprintf(output, "%s", thread);

    callFunctionOnCoprocessor("hasNewMessagesInChat", output, jsFunctionResponse);

    if (!strcmp(jsFunctionResponse, "true")) {

        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
            writeSerialPortDebug(boutRefNum, "update current chat");
        #endif

        SysBeep(1);
        getMessages(thread, 0);
    }
    #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
        else {

            writeSerialPortDebug(boutRefNum, "do not update current chat");
        }
    #endif

    return;
}

Boolean chatWindowCollision;
Boolean messageWindowCollision;

Boolean checkCollision(struct nk_rect window) {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: checkCollision");
    #endif

    // if truthy return, mouse is over window!
    return (window.x < mouse_x &&
       window.x + window.w > mouse_x &&
       window.y < mouse_y &&
       window.y + window.h > mouse_y);
}

// UI setup and event handling goes here
static void nuklearApp(struct nk_context *ctx) {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: nuklearApp");
    #endif

    // prompt the user for the graphql instance
    if (!coprocessorLoaded) {

        if (nk_begin_titled(ctx, "Loading coprocessor services", "Loading coprocessor services", graphql_input_window_size, NK_WINDOW_TITLE|NK_WINDOW_BORDER)) {

            nk_layout_row_begin(ctx, NK_STATIC, 20, 1);
            {
                nk_layout_row_push(ctx, 200);
                nk_label_wrap(ctx, "Please wait");
            }
            nk_layout_row_end(ctx);

            nk_end(ctx);
        }

        return;
    }

    // prompt the user for the graphql instance
    if (!ipAddressSet) {

        if (nk_begin_titled(ctx, "Enter iMessage GraphQL Server", "Enter iMessage GraphQL Server", graphql_input_window_size, NK_WINDOW_TITLE|NK_WINDOW_BORDER)) {

            nk_layout_row_begin(ctx, NK_STATIC, 20, 1);
            {
                nk_layout_row_push(ctx, 200);
                nk_label_wrap(ctx, "ex: http://127.0.0.1");
            }
            nk_layout_row_end(ctx);

            nk_layout_row_begin(ctx, NK_STATIC, 30, 2);
            {

                nk_layout_row_push(ctx, WINDOW_WIDTH / 2 - 100);
                short ip_edit_return_value = nk_edit_string(ctx, NK_EDIT_ALWAYS_INSERT_MODE|NK_EDIT_GOTO_END_ON_ACTIVATE, ip_input_buffer, &ip_input_buffer_len, 255, nk_filter_default);
                nk_layout_row_push(ctx, 55);

                if (nk_button_label(ctx, "save") || ip_edit_return_value == 17) {
                
                    ipAddressSet = 1;
                    forceRedrawChats = 2;
                    forceRedrawMessages = 2;
                    sendIPAddressToCoprocessor();
                }
            }
            nk_layout_row_end(ctx);

            nk_end(ctx);
        }

        // eliminate the initially-set force-redraw
        if (forceRedrawChats) {
            
            forceRedrawChats--;
        }

        if (forceRedrawMessages) {
            
            forceRedrawMessages--;
        }

        return;
    }

    // prompt the user for new chat
    if (sendNewChat) {

        if (nk_begin_titled(ctx, "Enter New Message Recipient", "Enter New Message Recipient",  nk_rect(50, WINDOW_HEIGHT / 4, WINDOW_WIDTH - 100, 140), NK_WINDOW_TITLE|NK_WINDOW_BORDER)) {

            nk_layout_row_begin(ctx, NK_STATIC, 30, 1);
            {
                nk_layout_row_push(ctx, WINDOW_WIDTH - 120);
                nk_label(ctx, "enter contact name as it would appear", NK_TEXT_ALIGN_LEFT);
                nk_layout_row_push(ctx, WINDOW_WIDTH - 120);
                nk_label(ctx, "on your iPhone, iPad, modern Mac, etc", NK_TEXT_ALIGN_LEFT);
            }
            nk_layout_row_end(ctx);

            nk_layout_row_begin(ctx, NK_STATIC, 30, 2);
            {
                nk_layout_row_push(ctx, WINDOW_WIDTH / 2);
                nk_edit_string(ctx, NK_EDIT_SIMPLE, new_message_input_buffer, &new_message_input_buffer_len, 2048, nk_filter_default);
                nk_layout_row_push(ctx, 100);

                if (nk_button_label(ctx, "open chat")) {
                
                    sendNewChat = 0;
                    forceRedrawChats = 2;
                    forceRedrawMessages = 2;

                    sprintf(activeChat, "%.*s", new_message_input_buffer_len, new_message_input_buffer);

                    for (int i = 0; i < MAX_CHAT_MESSAGES; i++) {

                        memset(&activeChatMessages[i * 2048], '\0', 2048);
                    }

                    getMessages(activeChat, 0);
                }
            }
            nk_layout_row_end(ctx);

            nk_end(ctx);
        }

        return;
    }

    chatWindowCollision = checkCollision(chats_window_size);

    if ((chatWindowCollision || forceRedrawChats) && nk_begin(ctx, "Chats", chats_window_size, NK_WINDOW_BORDER|NK_WINDOW_NO_SCROLLBAR)) {

        // we force a redraw for several following iterations in case the mouse has moved away,
        // we want to ensure that the button highlighting disappears
        if (chatWindowCollision && firstOrMouseMove) {

            forceRedrawChats = 3;
        }

        nk_layout_row_begin(ctx, NK_STATIC, 25, 1);
        {
            for (int i = 0; i < chatFriendlyNamesCounter; i++) {

                // only display the first 8 chats, create new chat if you need someone not in your list
                if (i > 9) {

                    continue;
                }

                nk_layout_row_push(ctx, 169);

                if (nk_button_label(ctx, &chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH])) {

                    if (strstr(&chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH], " new) ") != NULL) {

                        char chatName[96];
                        sprintf(chatName, "%.63s", &chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH]);

                        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
                            writeSerialPortDebug(boutRefNum, "clicked1 chatName");
                            writeSerialPortDebug(boutRefNum, chatName);
                        #endif

                        // we are throwing out the first token
                        char *name = (char *)strtokm(chatName, " new) ");

                        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
                            writeSerialPortDebug(boutRefNum, "clicked1 portion1 of string, will toss");
                            writeSerialPortDebug(boutRefNum, name);
                        #endif

                        name = (char *)strtokm(NULL, " new) ");

                        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
                            writeSerialPortDebug(boutRefNum, "clicked1 have name to assign to activeChat");
                            writeSerialPortDebug(boutRefNum, name);
                        #endif

                        sprintf(activeChat, "%.63s", name);
                        sprintf(&chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH], "%.63s", name);
                    } else {

                        #ifdef MESSAGES_FOR_MACINTOSH_DEBUGGING
                            writeSerialPortDebug(boutRefNum, "clicked2 chatName");
                            writeSerialPortDebug(boutRefNum, chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH]);
                        #endif

                        sprintf(activeChat, "%.63s", &chatFriendlyNames[i * MAX_FRIENDLY_NAME_LENGTH]);
                    }

                    forceRedrawChats = 6; // redraw the chat list for several iterations in an attempt to get rid of the hovered button
                    getMessages(activeChat, 0);
                }
            }
        }
        nk_layout_row_end(ctx);

        nk_end(ctx);
    }

    if (nk_begin(ctx, "Message Input", message_input_window_size, NK_WINDOW_BORDER|NK_WINDOW_NO_SCROLLBAR)) {

        // bottom text input
        nk_layout_row_begin(ctx, NK_STATIC, 28, 1);
        {
            nk_layout_row_push(ctx, 312);

            nk_edit_focus(ctx, NK_EDIT_ALWAYS_INSERT_MODE);

            short edit_return_value = nk_edit_string(ctx, NK_EDIT_FIELD|NK_EDIT_SIG_ENTER, box_input_buffer, &box_input_len, 2048, nk_filter_default);

            // this is the enter key, obviously
            if (edit_return_value == 17 && box_input_len > 0) {

                sendMessage();
            }
        }
        nk_layout_row_end(ctx);

        nk_end(ctx);
    }

    if ((forceRedrawMessages) && nk_begin_titled(ctx, "Message", activeChat, messages_window_size, NK_WINDOW_BORDER|NK_WINDOW_TITLE|NK_WINDOW_NO_SCROLLBAR)) {

        nk_layout_row_begin(ctx, NK_STATIC, 11, 1);
        {

            for (int i = 0; i < activeMessageCounter; i++) {

                nk_layout_row_push(ctx, 305);

                // writeSerialPortDebug(boutRefNum, "activeChatMessages[i]");
                // writeSerialPortDebug(boutRefNum, activeChatMessages[i]);
                nk_label(ctx, &activeChatMessages[i * 2048], NK_TEXT_ALIGN_LEFT);
            }
        }

        nk_layout_row_end(ctx);
        nk_end(ctx);
    }

    if (forceRedrawChats) {

        forceRedrawChats--;
    }

    if (forceRedrawMessages) {

        forceRedrawMessages--;
    }
}

void refreshNuklearApp(Boolean blankInput) {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: refreshNuklearApp");
    #endif

    nk_input_begin(ctx);

    if (blankInput) {

        nk_input_key(ctx, NK_KEY_DEL, 1);
        nk_input_key(ctx, NK_KEY_DEL, 0);
    }

    nk_input_end(ctx);
    nuklearApp(ctx);
    nk_quickdraw_render(FrontWindow(), ctx);
    nk_clear(ctx);
}

struct nk_context* initializeNuklearApp() {

    #ifdef DEBUG_FUNCTION_CALLS
        writeSerialPortDebug(boutRefNum, "DEBUG_FUNCTION_CALLS: initializeNuklearApp");
    #endif

    activeChat = malloc(sizeof(char) * MAX_FRIENDLY_NAME_LENGTH);
    activeChatMessages = malloc(sizeof(char) * (MAX_CHAT_MESSAGES * 2048)); // this should match to MAX_ROWS in index.js
    box_input_buffer = malloc(sizeof(char) * 2048);
    chatFriendlyNames = malloc(sizeof(char) * (16 * MAX_FRIENDLY_NAME_LENGTH));
    ip_input_buffer = malloc(sizeof(char) * 255);
    jsFunctionResponse = malloc(sizeof(char) * MAX_RECEIVE_SIZE); 
    chatCountFunctionResponse = malloc(sizeof(char) * MAX_RECEIVE_SIZE);
    tempChatCountFunctionResponse = malloc(sizeof(char) * MAX_RECEIVE_SIZE);
    previousChatCountFunctionResponse = malloc(sizeof(char) * MAX_RECEIVE_SIZE);
    new_message_input_buffer = malloc(sizeof(char) * 255);

    sprintf(activeChat, "no active chat");

    graphql_input_window_size = nk_rect(WINDOW_WIDTH / 2 - 118, 80, 234, 100);
    chats_window_size = nk_rect(0, 0, 180, WINDOW_HEIGHT);
    messages_window_size = nk_rect(180, 0, 330, WINDOW_HEIGHT - 36);
    message_input_window_size = nk_rect(180, WINDOW_HEIGHT - 36, 330, 36);

    ctx = nk_quickdraw_init(WINDOW_WIDTH, WINDOW_HEIGHT);
    refreshNuklearApp(false);

    sprintf(ip_input_buffer, "http://");
    ip_input_buffer_len = 7;

    return ctx;
}