#include "Client.h"
#include <iostream>
#include "../block/Blocks.h"
#include "../client/rendering/block/BlockRenderers.h"
#include "rendering/entity/EntityRenderer.h"
#include <cmath>

using namespace std;

Client::Client() : world(&chunkProvider)
{    
    BlockRegistry::registerBlocks();
    BlockRenderers::init();

    position.set(0, -9, 3);
    lengthAngle = 180;
    widthAngle = 0;
    
    camera.setPosition(position.getX(), position.getY(), position.getZ(), 0, 0);
    camera.storePosition();
    
    keyManager.map(KEY_LEFT, GLFW_KEY_A);
    keyManager.map(KEY_RIGHT, GLFW_KEY_D);
    keyManager.map(KEY_UP, GLFW_KEY_W);
    keyManager.map(KEY_DOWN, GLFW_KEY_S);
    keyManager.map(KEY_JUMP, GLFW_KEY_SPACE);
    keyManager.map(KEY_SNEAK, GLFW_KEY_LEFT_SHIFT);
    
    keyManager.map(KEY_TEST, GLFW_KEY_T);
    
    mouseManager.map(MOUSE_LEFT, GLFW_MOUSE_BUTTON_1);
    
    world.registerChunkListener(&chunkRenderer);
    world.updateDirtyChunks();
    
    Engine::setMouseTrapped(mouseTrapped);
}

Client::~Client()
{
}

void Client::tick()
{
    if(keyManager.isReleased(KEY_TEST))
    {
        mouseTrapped = !mouseTrapped;
        Engine::setMouseTrapped(mouseTrapped);
    }
    
    tps.update();
    
    camera.storePosition();
    
    float factor = 0.05f;
    if(keyManager.isDown(KEY_LEFT))
    {
        position.addMul(camera.getFlatLeft(), factor);
    }
    if(keyManager.isDown(KEY_RIGHT))
    {
        position.addMul(camera.getFlatRight(), factor);
    }
    if(keyManager.isDown(KEY_UP))
    {
        position.addMul(camera.getFlatFront(), factor);
    }
    if(keyManager.isDown(KEY_DOWN))
    {
        position.addMul(camera.getFlatBack(), factor);
    }
    if(keyManager.isDown(KEY_JUMP))
    {
        position.addMul(camera.getFlatUp(), factor);
    }
    if(keyManager.isDown(KEY_SNEAK))
    {
        position.addMul(camera.getFlatDown(), factor);
    }
       
    widthAngle += diffMouseY;
    if(widthAngle < -89)
    {
        widthAngle = -89;
    }
    else if(widthAngle > 89)
    {
        widthAngle = 89;
    }
    diffMouseY = 0;
    
    lengthAngle += diffMouseX;
    if(lengthAngle < 0)
    {
        lengthAngle += 360;
        camera.addToOldLengthAngle(360);
    }
    else if(lengthAngle > 360)
    {
        lengthAngle -= 360;
        camera.addToOldLengthAngle(-360);
    }
    diffMouseX = 0;
    
    camera.setPosition(position.getX(), position.getY(), position.getZ(), lengthAngle, widthAngle);
    
    entity.tick();
    
    mouseManager.tick();
    keyManager.tick();
}

void Client::render3DTick(float lag)
{
    fps.update();
    
    camera.update(lag);
    Engine::setWorldViewMatrix(camera.getViewMatrix());
    
    shader.setToIdentity();
    Engine::setWorldModelMatrix(shader.getModelMatrix());    
    chunkRenderer.renderTick(shader, camera, directRenderer, lag);
    
    entity.renderTick(shader, camera, directRenderer, lag);
}

void Client::render2DTick(float lag)
{
    shader.setToIdentity();
    Engine::setOverlayModelMatrix(shader.getModelMatrix());
    
    string wusi;
    wusi = "FPS: " + to_string(fps.getUpdatesPerSecond());
    float y = directRenderer.drawString(10, 10, true, wusi);
    wusi = "TPS: " + to_string(tps.getUpdatesPerSecond());
    directRenderer.drawString(10, y, true, wusi);
}

void Client::onKeyEvent(int key, int scancode, int action, int mods)
{
    if(action == GLFW_PRESS)
    {
        keyManager.press(key);
    }
    else if(action == GLFW_RELEASE)
    {
        keyManager.release(key);
    }
}

double Client::transformMouse(double x)
{
    if(x >= -MOUSE_BORDER && x <= MOUSE_BORDER)
    {
        return x * x * x;
    }
    else if(x >= MOUSE_BORDER)
    {
        const double k = (3 * MOUSE_BORDER * MOUSE_BORDER);
        const double y = MOUSE_BORDER * MOUSE_BORDER * MOUSE_BORDER;
        const double d = y - k * MOUSE_BORDER;
        return k * x + d;
    }
    else
    {
        const double k = (3 * MOUSE_BORDER * MOUSE_BORDER);
        const double y = -MOUSE_BORDER * MOUSE_BORDER * MOUSE_BORDER;
        const double d = y - k * MOUSE_BORDER;
        return k * x + d;
    }
}

void Client::onMouseMove(double x, double y)
{
    if(mouseTrapped)
    {
        diffMouseX = transformMouse(oldMouseX - x) * (1 / (MOUSE_BORDER * MOUSE_BORDER * 3));
        diffMouseY = transformMouse(oldMouseY - y) * (1 / (MOUSE_BORDER * MOUSE_BORDER * 3));
        oldMouseX = x;
        oldMouseY = y;
    }
}

void Client::onMouseClick(int button, int action, int mods)
{
    if(action == GLFW_PRESS)
    {
        mouseManager.press(button);
    }
    else if(action == GLFW_RELEASE)
    {
        mouseManager.release(button);
    }
}