#include "vulkan_app.hpp"

namespace vapp{
    void Vulkan::processInput(){
        float currentFrame = static_cast<float>(glfwGetTime());
        deltaTime = currentFrame - lastFrame;
        lastFrame = currentFrame;

        if(glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
            camera.ProcessKeyboard(FORWARD, deltaTime);
        if(glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)
            camera.ProcessKeyboard(BACKWARD, deltaTime);
        if(glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS)
            camera.ProcessKeyboard(LEFT, deltaTime);
        if(glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS)
            camera.ProcessKeyboard(RIGHT, deltaTime);
        if(glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS)
            camera.ProcessKeyboard(UP, deltaTime);
        if(glfwGetKey(window, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS)
            camera.ProcessKeyboard(DOWN, deltaTime);
    }

    void Vulkan::keyCallback(GLFWwindow *window, int key, int scancode, int action, int mods){
        Vulkan *app = static_cast<Vulkan*>(glfwGetWindowUserPointer(window));
        if(key == GLFW_KEY_LEFT_SHIFT){
            if(action == GLFW_PRESS)
                app->camera.MovementSpeed = 5.0f;
            else if(action == GLFW_RELEASE)
                app->camera.MovementSpeed = 2.5f;
        }
    }

    void Vulkan::mouseCallback(GLFWwindow *window, double xpos, double ypos){
        auto app = static_cast<Vulkan*>(glfwGetWindowUserPointer(window));
        if(app->firstMouse){
            app->lastX = xpos;
            app->lastY = ypos;
            app->firstMouse = false;
        }
        float xoff = xpos - app->lastX;
        float yoff = app->lastY - ypos;
        app->lastX = xpos;
        app->lastY = ypos;
        app->camera.ProcessMouseMovement(xoff, yoff);
    }

    void Vulkan::scrollCallback(GLFWwindow *window, double /*x*/, double yoffset){
        Vulkan *app = static_cast<Vulkan*>(glfwGetWindowUserPointer(window));
        app->camera.ProcessMouseScroll(static_cast<float>(yoffset));
    }
}