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path: root/src/Window.cpp
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#include "../include/Window.hpp"
#include <dchat/RoomDataType.hpp>
#include <dchat/Cache.hpp>
#include <sibs/SafeDeserializer.hpp>
#include <math.h>
#include <chrono>

namespace dchat
{
    const int nodesPerColumn = 10;
    const int nodesPerRow = 10;

    Window::Window() : 
        chatWindow(this)
    {
        set_border_width(0);
        windowNotification = Gtk::manage(new WindowNotification());
        overlay.add_overlay(*windowNotification);
        overlay.set_overlay_pass_through(*windowNotification);
        overlay.add(stack);
        add(overlay);

        stack.set_homogeneous(false);
        stack.set_transition_type(Gtk::StackTransitionType::STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT);
        stack.set_transition_duration(250);
        stack.add(loginWindow, "login");
        stack.add(chatWindow, "chat");

        overlay.show();
        windowNotification->show_all();
        stack.set_visible_child("login");
        stack.show();
        //chatWindow.show_all();
        //loginWindow.show();

        loginWindow.setLoginHandler([this](const Glib::ustring &username, const Glib::ustring &password)
        {
            if(!rooms || !rooms->database)
            {
                windowNotification->show("You are not connected to the bootstrap node yet! please wait...");
                return;
            }

            try
            {
                fprintf(stderr, "Trying to login with username %s\n", username.raw().c_str());
                rooms->loginUser(username.raw(), password.raw());
                //windowNotification->show(Glib::ustring("Successfully logged in as ") + username);
                drawBackgroundConnection.disconnect();
                chatWindow.show();
                stack.set_visible_child(chatWindow);
                chatWindow.scrollToBottom();
            }
            catch(std::exception &e)
            {
                Glib::ustring errMsg = "Failed to login, reason: ";
                errMsg += e.what();
                windowNotification->show(errMsg);
            }
        });

        loginWindow.setRegisterHandler([this](const Glib::ustring &username, const Glib::ustring &password)
        {
            if(!rooms || !rooms->database)
            {
                windowNotification->show("You are not connected to the bootstrap node yet! please wait...");
                return;
            }

            try
            {
                fprintf(stderr, "Trying to register username %s\n", username.raw().c_str());
                rooms->registerUser(username.raw(), password.raw());
                windowNotification->show(Glib::ustring("Successfully registered user ") + username);
                drawBackgroundConnection.disconnect();
                chatWindow.show();
                stack.set_visible_child(chatWindow);
            }
            catch(std::exception &e)
            {
                Glib::ustring errMsg = "Failed to register username ";
                errMsg += username.raw();
                errMsg += ", reason: ";
                errMsg += e.what();
                windowNotification->show(errMsg);
            }
        });

        loginWindow.setRegisterPasswordMismatch([this]
        {
            windowNotification->show("Passwords do not match");
        });

        RoomCallbackFuncs roomCallbackFuncs;
        roomCallbackFuncs.connectCallbackFunc = [this](std::shared_ptr<Rooms> rooms, const char *errMsg)
        {
            this->rooms = rooms;
            if(rooms)
            {
                loginWindow.show();
                stack.set_visible_child(loginWindow);
                windowNotification->show("Connected to 83.252.53.188:27130");
                loginWindow.loginUsernameInput.grab_focus();
            }
            else
            {
                std::string errMsgToShow = "Failed to connect to boostrap node, reason: ";
                errMsgToShow += errMsg;
                windowNotification->show(errMsgToShow);
            }
        };
        roomCallbackFuncs.createRoomCallbackFunc = [this](std::shared_ptr<Room> room)
        {
            chatWindow.addRoom(room);
        };
        roomCallbackFuncs.addUserCallbackFunc = [this](const RoomAddUserRequest &request)
        {
            chatWindow.addUser(request);
        };
        roomCallbackFuncs.addMessageCallbackFunc = [this](const RoomAddMessageRequest &request)
        {
            chatWindow.addMessage(request);
        };
        roomCallbackFuncs.userChangeNicknameCallbackFunc = [this](const UserChangeNicknameRequest &request)
        {
            chatWindow.setUserNickname(request);
        };
        roomCallbackFuncs.changeRoomNameCallbackFunc = [this](const RoomChangeNameRequest &request)
        {
            chatWindow.changeRoomName(request);
        };
        roomCallbackFuncs.receiveInviteUserCallbackFunc = [this](const InviteUserRequest &request)
        {
            chatWindow.addInviteRequest(request);
        };

        windowNotification->show("Connecting to 83.252.53.188:27130");
        Rooms::connect("83.252.53.188", 27130, roomCallbackFuncs);

        backgroundRng.seed(std::random_device()());
        std::uniform_int_distribution<std::mt19937::result_type> sizeDeviationRand(0, 5);
        std::uniform_int_distribution<std::mt19937::result_type> posDeviationRand(0, 100);

        const double spaceBetweenNodesColumn = 1.0 / (double)(nodesPerColumn - 1);
        const double spaceBetweenNodesRow = 1.0 / (double)(nodesPerRow - 1);
        for(int y = 0; y < nodesPerRow; ++y)
        {
            for(int x = 0; x < nodesPerColumn; ++x)
            {
                int sizeDeviation = sizeDeviationRand(backgroundRng);
                //int xDeviation = posDeviationRand(backgroundRng) - 50;
                //int yDeviation = posDeviationRand(backgroundRng) - 50;
                int xDeviation = 0;
                int yDeviation = 0;

                Node node;
                node.radius = 5.0 + sizeDeviation;
                node.originalPosX = /*spaceBetweenNodesColumn * 0.5 + */x * spaceBetweenNodesColumn + xDeviation * 0.001;
                node.originalPosY = /*spaceBetweenNodesRow * 0.5 + */y * spaceBetweenNodesRow + yDeviation * 0.001;
                node.currentPosX = node.originalPosX;
                node.currentPosY = node.originalPosY;
                node.targetPosX = node.currentPosX;
                node.targetPosY = node.currentPosY;
                backgroundNodes.push_back(node);
            }
        }
        prevTimeMillis = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - 5000;
        drawBackgroundConnection = signal_draw().connect(sigc::mem_fun(*this, &Window::drawBackground));
        //set_size_request(640, 480);
        //set_app_paintable(true);
    }

    Window::~Window()
    {

    }

    static void drawNode(const Cairo::RefPtr<Cairo::Context> &cairo, double x, double y, double radius)
    {
        cairo->arc(x, y, radius, 0.0, 2.0 * M_PI);
        cairo->fill();
        cairo->arc(x, y, radius + (radius * 0.8), 0.0, 2.0 * M_PI);
        cairo->set_line_width(radius * 0.1);
        cairo->stroke();
    }

    bool Window::drawBackground(const Cairo::RefPtr<Cairo::Context> &cairo)
    {
        int windowWidth, windowHeight;
        get_size(windowWidth, windowHeight);

        //cairo->set_source_rgb(0.1843137254901961, 0.19215686274509805, 0.21176470588235294);
        //cairo->rectangle(0.0, 0.0, windowWidth, windowHeight);
        //cairo->fill();

        cairo->set_source_rgb(0.5, 0.5, 0.5);
        
        int currentTimeMillis = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
        int deltaTimeMillis = currentTimeMillis - prevTimeMillis;
        bool updateTarget = false;
        if(deltaTimeMillis > 3000)
        {
            prevTimeMillis = currentTimeMillis;
            updateTarget = true;
        }
        std::uniform_int_distribution<std::mt19937::result_type> posDeviationRand(0, 100);
        const double moveSpeed = 0.0001;

        for(Node &node : backgroundNodes)
        {
            if(updateTarget)
            {
                int xDeviation = posDeviationRand(backgroundRng) - 50;
                int yDeviation = posDeviationRand(backgroundRng) - 50;

                node.targetPosX = node.originalPosX + xDeviation * 0.001;
                node.targetPosY = node.originalPosY + yDeviation * 0.001;
            }

            double diffX = node.targetPosX - node.currentPosX;
            double diffY = node.targetPosY - node.currentPosY;
            double diffDist = std::max(0.01, std::sqrt(diffX*diffX + diffY*diffY));
            diffX /= diffDist;
            diffY /= diffDist;

            node.currentPosX += (diffX * moveSpeed);
            node.currentPosY += (diffY * moveSpeed);

            drawNode(cairo, node.currentPosX * windowWidth, node.currentPosY * windowHeight, node.radius);
        }

        cairo->set_line_width(2.0);
        for(int y = 0; y < nodesPerRow; ++y)
        {
            for(int x = 0; x < nodesPerColumn; ++x)
            {
                Node *currentNode = &backgroundNodes[x + y * nodesPerRow];
                if(x > 0)
                {
                    Node *prevNode = &backgroundNodes[x - 1 + y * nodesPerRow];
                    int currentNodeRadius = currentNode->radius + (currentNode->radius * 0.8);
                    int prevNodeRadius = prevNode->radius + (prevNode->radius * 0.8);
                    cairo->move_to(prevNode->currentPosX * windowWidth + prevNodeRadius, prevNode->currentPosY * windowHeight);
                    cairo->line_to(currentNode->currentPosX * windowWidth - currentNodeRadius, currentNode->currentPosY * windowHeight);
                }

                if(y > 0)
                {
                    Node *prevNode = &backgroundNodes[x + (y - 1) * nodesPerRow];
                    int currentNodeRadius = currentNode->radius + (currentNode->radius * 0.8);
                    int prevNodeRadius = prevNode->radius + (prevNode->radius * 0.8);
                    cairo->move_to(prevNode->currentPosX * windowWidth, prevNode->currentPosY * windowHeight + prevNodeRadius);
                    cairo->line_to(currentNode->currentPosX * windowWidth, currentNode->currentPosY * windowHeight - currentNodeRadius);
                }
            }
        }
        cairo->stroke();

        /*
        int windowMax = std::max(windowWidth/2, windowHeight/2);
        auto backgroundGradient = Cairo::RadialGradient::create(windowWidth/2, windowHeight/2, 0.0, windowWidth/2, windowHeight/2, windowMax*1.35);
        backgroundGradient->add_color_stop_rgba(0.0, 0.0, 0.0, 0.0, 0.0);
        backgroundGradient->add_color_stop_rgba(1.0, 0.1843137254901961, 0.19215686274509805, 0.21176470588235294, 1.0);
        cairo->set_source(backgroundGradient);
        cairo->mask(backgroundGradient);
        //cairo->paint();
        */

        Gtk::Allocation alloc = overlay.get_allocation();
        // For some reason gtk sometimes needs time to allocate the overlay, and it freezes the application if you do not wait for it
        if(!alloc.has_zero_area())
            overlay.draw(cairo);
        queue_draw();
        return true;
    }
}