// Window management
let activeWindow = null;
let windowZIndex = 100;
let minimizedWindows = [];
document.addEventListener('DOMContentLoaded', () => {
    initializeDesktop();
    initializeContextMenus();
    initializeKeyboardShortcuts();
    
    // Initialize windows with proper styles
    document.querySelectorAll('app-window').forEach(window => {
        const width = window.getAttribute('width');
        const height = window.getAttribute('height');
        const x = window.getAttribute('x');
        const y = window.getAttribute('y');
        
        if (width) window.style.width = `${width}px`;
        if (height) window.style.height = `${height}px`;
        if (x) window.style.left = `${x}px`;
        if (y) window.style.top = `${y}px`;
    });
});
function initializeDesktop() {
    const desktop = document.getElementById('desktop');
    
    // Prevent text selection on desktop
    desktop.addEventListener('selectstart', (e) => {
        if (e.target === desktop || e.target.classList.contains('desktop-icon')) {
            e.preventDefault();
        }
    });
}

function initializeContextMenus() {
    const contextMenu = document.getElementById('context-menu');
    const desktop = document.getElementById('desktop');
    
    desktop.addEventListener('contextmenu', (e) => {
        e.preventDefault();
        
        if (!e.target.closest('app-window')) {
            contextMenu.style.left = `${e.clientX}px`;
            contextMenu.style.top = `${e.clientY}px`;
            contextMenu.classList.remove('hidden');
            contextMenu.classList.add('menu-enter');
            
            // Adjust position if menu goes off screen
            setTimeout(() => {
                const rect = contextMenu.getBoundingClientRect();
                if (rect.right > window.innerWidth) {
                    contextMenu.style.left = `${window.innerWidth - rect.width - 5}px`;
                }
                if (rect.bottom > window.innerHeight) {
                    contextMenu.style.top = `${window.innerHeight - rect.height - 5}px`;
                }
            }, 0);
        }
    });
    
    document.addEventListener('click', (e) => {
        if (!contextMenu.contains(e.target)) {
            contextMenu.classList.add('hidden');
        }
    });
}

function initializeKeyboardShortcuts() {
    document.addEventListener('keydown', (e) => {
        // Alt + F4: Close active window
        if (e.altKey && e.key === 'F4' && activeWindow) {
            closeWindow(activeWindow.id);
        }
        
        // Super (Meta) + D: Show desktop
        if (e.metaKey && e.key === 'd') {
            toggleDesktop();
        }
        
        // Ctrl + Alt + T: Open terminal
        if (e.ctrlKey && e.altKey && e.key === 't') {
            createNewWindow('Terminal', 'terminal', 600, 400, getTerminalContent());
        }
    });
}

function toggleDesktop() {
    const windows = document.querySelectorAll('app-window');
    windows.forEach(window => {
        if (window.style.display !== 'none') {
            window.style.display = window.style.display === 'none' ? 'block' : 'none';
        }
    });
}

function getTerminalContent() {
    return `<div class="bg-black h-full p-4 font-mono text-sm text-green-400 overflow-auto">
        <div>mate@mate-desktop:~$ _</div>
    </div>`;
}

function createNewWindow(title, icon, width, height, content, x = null, y = null) {
    const windowId = `window-${Date.now()}`;
    const windowX = x || Math.random() * (window.innerWidth - width);
    const windowY = y || Math.random() * (window.innerHeight - height - 100);
    
    const windowElement = document.createElement('app-window');
    windowElement.id = windowId;
    windowElement.setAttribute('title', title);
    windowElement.setAttribute('icon', icon);
    windowElement.setAttribute('width', width);
    windowElement.setAttribute('height', height);
    windowElement.setAttribute('x', windowX);
    windowElement.setAttribute('y', windowY);
    windowElement.innerHTML = content;
    
    document.getElementById('windows-container').appendChild(windowElement);
    
    // Add to taskbar
    const bottomPanel = document.querySelector('bottom-panel');
    if (bottomPanel && bottomPanel.addWindowToTaskbar) {
        bottomPanel.addWindowToTaskbar(windowId, title, icon);
    }
    
    // Focus new window
    setTimeout(() => focusWindow(windowId), 100);
}

function focusWindow(windowId) {
    const window = document.getElementById(windowId);
    if (!window) return;
    
    // Update z-index
    window.style.zIndex = ++windowZIndex;
    activeWindow = window;
    
    // Update visual state
    document.querySelectorAll('app-window').forEach(w => {
        w.classList.remove('active-window');
    });
    window.classList.add('active-window');
    
    // Update taskbar
    updateTaskbarActiveWindow(windowId);
}

function updateTaskbarActiveWindow(windowId) {
    document.querySelectorAll('.taskbar-item').forEach(item => {
        item.classList.remove('taskbar-active');
        if (item.dataset.windowId === windowId) {
            item.classList.add('taskbar-active');
        }
    });
}

function minimizeWindow(windowId) {
    const window = document.getElementById(windowId);
    if (!window) return;
    
    minimizedWindows.push(windowId);
    window.classList.add('window-minimize');
    
    setTimeout(() => {
        window.style.display = 'none';
        window.classList.remove('window-minimize');
    }, 300);
    
    // Update taskbar
    const taskbarItem = document.querySelector(`[data-window-id="${windowId}"]`);
    if (taskbarItem) {
        taskbarItem.classList.remove('taskbar-active');
    }
}

function restoreWindow(windowId) {
    const window = document.getElementById(windowId);
    if (!window) return;
    
    window.style.display = 'block';
    window.classList.add('window-enter');
    
    const index = minimizedWindows.indexOf(windowId);
    if (index > -1) {
        minimizedWindows.splice(index, 1);
    }
    
    setTimeout(() => {
        window.classList.remove('window-enter');
        focusWindow(windowId);
    }, 200);
}

function closeWindow(windowId) {
    const window = document.getElementById(windowId);
    if (!window) return;
    
    window.classList.add('window-minimize');
    
    setTimeout(() => {
        window.remove();
        
        // Remove from taskbar
        const taskbarItem = document.querySelector(`[data-window-id="${windowId}"]`);
        if (taskbarItem) {
            taskbarItem.remove();
        }
        
        // Update active window if needed
        if (activeWindow === window) {
            const windows = document.querySelectorAll('app-window');
            if (windows.length > 0) {
                focusWindow(windows[windows.length - 1].id);
            } else {
                activeWindow = null;
            }
        }
    }, 300);
}

function maximizeWindow(windowId) {
    const window = document.getElementById(windowId);
    if (!window) return;
    
    const isMaximized = window.classList.contains('window-maximized');
    
    if (isMaximized) {
        window.classList.remove('window-maximized');
        // Restore previous size and position
        window.style.width = window.dataset.prevWidth || '600px';
        window.style.height = window.dataset.prevHeight || '400px';
        window.style.top = window.dataset.prevY || '100px';
        window.style.left = window.dataset.prevX || '100px';
    } else {
        // Store current size and position
        window.dataset.prevWidth = window.style.width;
        window.dataset.prevHeight = window.style.height;
        window.dataset.prevX = window.style.left;
        window.dataset.prevY = window.style.top;
        
        window.classList.add('window-maximized');
    }
}

function updateClock() {
    const now = new Date();
    const timeString = now.toLocaleTimeString('pt-BR', { 
        hour: '2-digit', 
        minute: '2-digit',
        hour12: false 
    });
    const dateString = now.toLocaleDateString('pt-BR', { 
        day: '2-digit', 
        month: 'short',
        weekday: 'short'
    });
    
    const clockElement = document.getElementById('clock');
    if (clockElement) {
        clockElement.innerHTML = `
            <div class="text-xs">${dateString}</div>
            <div class="font-medium">${timeString}</div>
        `;
    }
}

// Update clock every second
setInterval(updateClock, 1000);
updateClock();