const stateStruct = {
    canvas: {
        width: undefined,
        height: undefined,
        ctx: null
    },
    square: {
        x: 0,
        y: 0,
        angle: 0,
        angularSpeed: 0,
        angularAcceleration: 0,
        radius: 100,        // Orbit radius
        orbitAngle: 0,      // Current orbit angle
        velocity: { x: 0, y: 0, z: 0 }  // Updated to Vector3-like structure
    },
    performance: {
        fps: 0
    },
    system: {
        inputHandler: null,
        scene: null,
        terminal: null,
        engineStarted: false,
        currentConfig: null,
        animationFrameId: null,
        physics: null
    },
    terminal: {
        height: 0,
        isOpen: false,
        commandHistory: [],
        inputBuffer: '',
        cursorVisible: true,
        cursorTimer: 0,
        scrollOffset: 0,
        maxScrollOffset: 0,
        isDraggingScrollbar: false,
        lastMouseY: 0
    }
};

const initialState = {
    canvas: { width: undefined, height: undefined, ctx: null },
    square: {
        x: 0,
        y: 0,
        angle: 0,
        angularSpeed: 0,
        angularAcceleration: 0,
        radius: 100,
        orbitAngle: 0,
        velocity: { x: 0, y: 0, z: 0 }
    },
    terminal: {
        height: 0,
        isOpen: false,
        commandHistory: [],
        inputBuffer: '',
        cursorVisible: true,
        cursorTimer: 0,
        scrollOffset: 0,
        maxScrollOffset: 0,
        isDraggingScrollbar: false,
        lastMouseY: 0
    },
    performance: { fps: 0 },
    system: {
        inputHandler: null,
        scene: null,
        terminal: null,
        engineStarted: false,
        currentConfig: null,
        animationFrameId: null,
        physics: null
    }
};

export function resetState() {
    Object.keys(initialState).forEach(key => {
        Object.assign(stateStruct[key], initialState[key]);
    });
}

export const state = {
    get canvasWidth() { return stateStruct.canvas.width; },
    set canvasWidth(value) { stateStruct.canvas.width = value; },
    get canvasHeight() { return stateStruct.canvas.height; },
    set canvasHeight(value) { stateStruct.canvas.height = value; },
    get squareX() { return stateStruct.square.x; },
    set squareX(value) { stateStruct.square.x = value; },
    get squareY() { return stateStruct.square.y; },
    set squareY(value) { stateStruct.square.y = value; },
    get angle() { return stateStruct.square.angle; },
    set angle(value) { stateStruct.square.angle = value; },
    get angularSpeed() { return stateStruct.square.angularSpeed; },
    set angularSpeed(value) { stateStruct.square.angularSpeed = value; },
    get angularAcceleration() { return stateStruct.square.angularAcceleration; },
    set angularAcceleration(value) { stateStruct.square.angularAcceleration = value; },
    get velocity() { return stateStruct.square.velocity; },
    set velocity(value) { stateStruct.square.velocity = value; },
    get fps() { return stateStruct.performance.fps; },
    set fps(value) { stateStruct.performance.fps = value; },
    get ctx() { return stateStruct.canvas.ctx; },
    set ctx(value) { stateStruct.canvas.ctx = value; },
    get inputHandler() { return stateStruct.system.inputHandler; },
    set inputHandler(value) { stateStruct.system.inputHandler = value; },
    get scene() { return stateStruct.system.scene; },
    set scene(value) { stateStruct.system.scene = value; },
    get terminal() { return stateStruct.system.terminal; },
    set terminal(value) { stateStruct.system.terminal = value; },
    get terminalHeight() { return stateStruct.terminal.height; },
    set terminalHeight(value) { stateStruct.terminal.height = value; },
    get terminalOpen() { return stateStruct.terminal.isOpen; },
    set terminalOpen(value) { stateStruct.terminal.isOpen = value; },
    get commandHistory() { return stateStruct.terminal.commandHistory; },
    set commandHistory(value) { stateStruct.terminal.commandHistory = value; },
    get inputBuffer() { return stateStruct.terminal.inputBuffer; },
    set inputBuffer(value) { stateStruct.terminal.inputBuffer = value; },
    get cursorVisible() { return stateStruct.terminal.cursorVisible; },
    set cursorVisible(value) { stateStruct.terminal.cursorVisible = value; },
    get cursorTimer() { return stateStruct.terminal.cursorTimer; },
    set cursorTimer(value) { stateStruct.terminal.cursorTimer = value; },
    get scrollOffset() { return stateStruct.terminal.scrollOffset; },
    set scrollOffset(value) { stateStruct.terminal.scrollOffset = value; },
    get maxScrollOffset() { return stateStruct.terminal.maxScrollOffset; },
    set maxScrollOffset(value) { stateStruct.terminal.maxScrollOffset = value; },
    get isDraggingScrollbar() { return stateStruct.terminal.isDraggingScrollbar; },
    set isDraggingScrollbar(value) { stateStruct.terminal.isDraggingScrollbar = value; },
    get lastMouseY() { return stateStruct.terminal.lastMouseY; },
    set lastMouseY(value) { stateStruct.terminal.lastMouseY = value; },
    get engineStarted() { return stateStruct.system.engineStarted; },
    set engineStarted(value) { stateStruct.system.engineStarted = value; },
    get currentConfig() { return stateStruct.system.currentConfig; },
    set currentConfig(value) { stateStruct.system.currentConfig = value; },
    get animationFrameId() { return stateStruct.system.animationFrameId; },
    set animationFrameId(value) { stateStruct.system.animationFrameId = value; },
    get physics() { return stateStruct.system.physics; },
    set physics(value) { stateStruct.system.physics = value; }
};