//
// Created by sebastian on 15.02.26.
//

#include "Mouse.h"
#include "../../Window.h"
#include "../../Application.h"
#include <GLFW/glfw3.h>

Mouse::Mouse(Window &window) {
    addMoveListener(window);
    addScrollListener(window);
    addClickListener(window);
}

bool Mouse::isButtonDown(MouseButton button) {
    return buttonsDown.contains(MouseButtonToInt(button));
}

bool Mouse::isClickEvent(MouseButton button) {
    return buttonsClickedThisFrame.contains(MouseButtonToInt(button));
}

bool Mouse::isReleaseEvent(MouseButton button) {
    return buttonsReleasedThisFrame.contains(MouseButtonToInt(button));
}

float Mouse::getX() {
    return x;
}

float Mouse::getY() {
    return y;
}

float Mouse::getDX() {
    return dx;
}

float Mouse::getDY() {
    return dy;
}

float Mouse::getScroll() {
    return scroll;
}

void Mouse::update() {
    buttonsClickedThisFrame.clear();
    buttonsReleasedThisFrame.clear();
    updateDetlas();
    scroll = 0.0f;
}

void Mouse::reportButtonClick(int button) {
    buttonsDown.insert(button);
    buttonsClickedThisFrame.insert(button);
}

void Mouse::reportButtonRelease(int button) {
    buttonsDown.erase(button);
    buttonsReleasedThisFrame.insert(button);
}

void Mouse::updateDetlas() {
    dx = x - lastX;
    dy = y - lastY;
    lastX = x;
    lastY = y;
}

void Mouse::addMoveListener(Window &window) {
    glfwSetCursorPosCallback(static_cast<GLFWwindow *>(window.GetNativeWindow()), [](GLFWwindow *window, double xpos, double ypos) {
        Application::getInstance().mouse->x = static_cast<float>(xpos / Application::getInstance().getWindow().GetWidth() );
        Application::getInstance().mouse->y = static_cast<float>(ypos / Application::getInstance().getWindow().GetHeight());
    });
}

void Mouse::addScrollListener(Window &window) {
    glfwSetScrollCallback(static_cast<GLFWwindow *>(window.GetNativeWindow()), [](GLFWwindow *window, double xoff, double yoff) {
        Application::getInstance().mouse->scroll = static_cast<float>(yoff);
    });
}

void Mouse::addClickListener(Window &window) {
    glfwSetMouseButtonCallback(static_cast<GLFWwindow *>(window.GetNativeWindow()), [](GLFWwindow *window, int button, int action, int mods) {
        if (action == GLFW_PRESS) {
            Application::getInstance().mouse->reportButtonClick(button);
        } else if (action == GLFW_RELEASE) {
            Application::getInstance().mouse->reportButtonRelease(button);
        }
    });
}

int Mouse::MouseButtonToInt(MouseButton button) {
    int glfwButton = 0;
    switch (button) {
        case MouseButton::LEFT: glfwButton = GLFW_MOUSE_BUTTON_LEFT; break;
        case MouseButton::RIGHT: glfwButton = GLFW_MOUSE_BUTTON_RIGHT; break;
        case MouseButton::MIDDLE: glfwButton = GLFW_MOUSE_BUTTON_MIDDLE; break;
    }
    return glfwButton;
}