Mountain/IPC/

WindAdvancedSync.rs

//! # Wind Advanced Synchronization - Real-time Document & UI Sync
//!
//! **File Responsibilities:**
//! This module implements advanced synchronization features that keep Wind's
//! frontend state in sync with Mountain's backend state in real-time. It
//! handles document changes, UI state updates, and broadcast updates across the
//! editor ecosystem.
//!
//! **Architectural Role in Wind-Mountain Connection:**
//!
//! The WindAdvancedSync module is responsible for:
//!
//! 1. **Document Synchronization:** Real-time tracking and synchronization of
//!    document changes between Wind (frontend editor) and Mountain (backend
//!    services)
//! 2. **UI State Sync:** Synchronizing UI state across multiple editor windows
//!    - Cursor positions
//!    - Selection ranges
//!    - Zoom levels
//!    - Theme and layout
//! 3. **Real-time Broadcasting:** Broadcasting updates to interested
//!    subscribers
//! 4. **Conflict Detection:** Identifying and handling conflicting changes
//! 5. **Performance Tracking:** Monitoring sync performance and health
//!
//! **Synchronization Architecture:**
//!
//! **Three Sync Layers:**
//!
//! **1. Document Synchronization (Every 5 seconds):**
//! ```text
//! Wind Editor (User Edits)
//!     |
//!     | Detect changes
//!     v
//! WindAdvancedSync
//!     |
//!     | Check for conflicts
//!     v
//! Mountain Services
//!     |
//!     | Apply changes
//!     v
//! File System / Storage
//! ```
//!
//! **2. UI State Synchronization (Every 1 second):**
//! ```text
//! Wind UI Window
//!     |
//!     | Capture state (cursor, selection, zoom)
//!     v
//! WindAdvancedSync
//!     |
//!     | Update internal state
//!     v
//! Apply to other windows
//! ```
//!
//! **3. Real-time Updates (Every 100ms):**
//! ```text
//! Subscribed Listeners
//!     ^
//!     | Broadcast updates
//!     |
//! WindAdvancedSync
//!     |
//!     | Queue updates
//!     v
//! Update Queue
//! ```
//!
//! **Document Synchronization States:**
//!
//! ```rust
//! enum SyncState {
//! 	Modified,   // Changed locally, not synced
//! 	Synced,     // Successfully synchronized
//! 	Conflicted, // Conflicts need resolution
//! 	Offline,    // Cannot sync (offline)
//! }
//! ```
//!
//! **Change Types Supported:**
//!
//! ```rust
//! enum ChangeType {
//! 	Update, // File content updated
//! 	Insert, // New file created
//! 	Delete, // File deleted
//! 	Move,   // File moved/renamed
//! 	Other,  // Other changes
//! }
//! ```
//!
//! **Conflict Detection (Microsoft-Inspired):**
//!
//! **Detection Criteria:**
//! - Document modified recently (within 10 seconds of last sync)
//! - Document is already in conflicted state
//! - Multiple simultaneous changes detected
//!
//! **Conflict Response:**
//! ```rust
//! return Err(format!(
//! 	"Conflict detected: Document {} was modified recently ({}s ago)",
//! 	document_id,
//! 	current_time - document.last_modified
//! ));
//! ```
//!
//! **Error Recovery (Circuit Breaker Pattern):**
//!
//! **Circuit Breaker States:**
//! 1. **Closed (Normal):** Operations proceed normally
//! 2. **Open (Degraded):** Too many failures, slow down sync interval
//! 3. **Half-Open (Testing):** Slowly testing if system recovered
//!
//! **Recovery Logic:**
//! - Track consecutive failures (max 3)
//! - On reaching limit: Increase sync interval to 30s
//! - On success: Reset interval to 5s
//! - Provides protection against cascading failures
//!
//! **Trackable Metrics:**
//!
//! **Sync.Status:**
//! ```rust
//! SyncStatus {
//! 	total_documents:u32,       // All tracked documents
//! 	synced_documents:u32,      // Successfully synced
//! 	conflicted_documents:u32,  // Have conflicts
//! 	offline_documents:u32,     // Cannot sync
//! 	last_sync_duration_ms:u64, // Time for last sync
//! }
//! ```
//!
//! **UI State Tracked:**
//!
//! ```rust
//! UIStateSynchronization {
//!     active_editor: Option<String>,
//!     cursor_positions: HashMap<String, (u32, u32)>,  // Document -> (line, col)
//!     selection_ranges: HashMap<String, (u32, u32)>,   // Document -> (start, end)
//!     view_state: ViewState {
//!         zoom_level: f32,
//!         sidebar_visible: bool,
//!         panel_visible: bool,
//!         status_bar_visible: bool,
//!     },
//!     theme: String,
//!     layout: LayoutState,
//! }
//! ```
//!
//! **Real-time Update System:**
//!
//! **Update Flow:**
//! 1. Queue updates as they occur
//! 2. Subscriber management per target
//! 3. Periodic broadcast (100ms)
//! 4. Emit events via Tauri
//!
//! **Subscription Model:**
//! ```rust
//! // Subscribe to updates for a target
//! sync.subscribe_to_updates("file-changes", "window-1").await?;
//!
//! // Queue updates
//! sync.queue_update(RealTimeUpdate { target:"file-changes".to_string(), data:modified_content })
//! 	.await?;
//!
//! // Broadcasts go to:
//! // - "real-time-update-window-1"
//! // - "real-time-update-window-2"
//! // etc...
//! ```
//!
//! **Tauri Commands:**
//!
//! - `mountain_add_document_for_sync` - Add document to sync tracking
//! - `mountain_get_sync_status` - Get current sync status
//! - `mountain_subscribe_to_updates` - Subscribe to real-time updates
//!
//! **Events Emitted:**
//!
//! - `mountain_sync_status_update` - Sync status changes
//! - `mountain_performance_update` - Performance metrics
//! - `real-time-update-{subscriber}` - Real-time updates
//!
//! **Initialization:**
//!
//! ```text
//! // In Mountain setup
//! let sync = Arc::new(WindAdvancedSync::new(runtime));
//! app_handle.manage(sync.clone());
//!
//! // Start sync tasks
//! let sync_clone = sync.clone();
//! tokio::spawn(async move {
//! sync_clone.start_synchronization().await;
//! });
//! ```
//!
//! **Usage Examples:**
//!
//! **Add Document for Sync:**
//! ```typescript
//! // From Wind TypeScript
//! await invoke('mountain_add_document_for_sync', {
//!     documentId: 'file-123',
//!     filePath: '/project/src/main.rs'
//! });
//! ```
//!
//! **Check Sync Status:**
//! ```typescript
//! const status = await invoke('mountain_get_sync_status');
//! console.log(`Synced: ${status.syncedDocuments}/${status.totalDocuments}`);
//! ```
//!
//! **Subscribe to Updates:**
//! ```typescript
//! await invoke('mountain_subscribe_to_updates', {
//!     target: 'file-changes',
//!     subscriber: 'my-window-id'
//! });
//!
//! // Listen for updates
//! app.handle.listen('real-time-update-my-window-id', (event) => {
//!     console.log('Real-time update:', event.payload);
//! });
//! ```
//!
//! **Performance Tracking:**
//!
//! **Metrics Collected:**
//! - Total messages sent/received
//! - Average latency
//! - Connection uptime
//! - Error count
//! - Sync duration
//!
//! **Logged on Every Operation:**
//! ```text
//! dev_log!("ipc",
//! "Document sync completed: {} success, {} errors, {:.2}ms",
//! success_count,
//! error_count,
//! sync_duration.as_millis()
//! );
//! ```
//!
//! **Integration with Other Modules:**
//!
//! **TauriIPCServer:**
//! - Used for broadcasting events to Wind
//! - Emits sync and performance updates
//!
//! **AdvancedFeatures:**
//! - Collaboration sessions work with document sync
//! - Shared focus on real-time updates
//!
//! **StatusReporter:**
//! - Sync status reported to Sky for monitoring
//! - Performance metrics shared
//!
//! **Future Enhancements:**
//!
//! - **Operational Transformation:** For collaborative editing
//! - **Conflict Resolution UI:** User-facing conflict resolution
//! - **Delta Sync:** Only sync changed portions
//! - **Sync Prioritization:** Prioritize active documents
//! - **Offline Sync Support:** Queue changes when offline

use std::{
	collections::HashMap,
	sync::{Arc, Mutex},
	time::{Duration, SystemTime},
};

use serde::{Deserialize, Serialize};
use tokio::time::interval;
use tauri::{Emitter, Manager};

use crate::{IPC::AdvancedFeatures::PerformanceStats, RunTime::ApplicationRunTime::ApplicationRunTime, dev_log};

// TEMPORARY: MountainIPC module not yet implemented
// This import is needed for full document synchronization with Mountain
// backend. TODO: Create MountainIPC module and implement document operations.
// // use crate::IPC::MountainIPC::MountainIPC;

/// Synchronization status
#[derive(Clone, Serialize, Deserialize, Debug)]
pub struct SyncStatus {
	pub total_documents:u32,
	pub synced_documents:u32,
	pub conflicted_documents:u32,
	pub offline_documents:u32,
	pub last_sync_duration_ms:u64,
}

/// Document synchronization state
#[derive(Clone, Copy, PartialEq, Debug)]
pub enum SyncState {
	Modified,
	Synced,
	Conflicted,
	Offline,
}

/// Change type for document modifications
#[derive(Clone, Copy, Debug)]
pub enum ChangeType {
	Update,
	Insert,
	Delete,
	Move,
	Other,
}

/// Single synchronized document
#[derive(Clone, Debug)]
pub struct SynchronizedDocument {
	pub document_id:String,
	pub file_path:String,
	pub last_modified:u64,
	pub content_hash:String,
	pub sync_state:SyncState,
	pub version:u32,
}

/// Document change
#[derive(Clone, Debug)]
pub struct DocumentChange {
	pub change_id:String,
	pub document_id:String,
	pub change_type:ChangeType,
	pub content:Option<String>,
	pub applied:bool,
}

/// Document synchronization state
pub struct DocumentSynchronization {
	pub synchronized_documents:HashMap<String, SynchronizedDocument>,
	pub pending_changes:HashMap<String, Vec<DocumentChange>>,
	pub last_sync_time:u64,
	pub sync_status:SyncStatus,
}

/// Real-time update
#[derive(Clone, Serialize, Deserialize, Debug)]
pub struct RealTimeUpdate {
	pub target:String,
	pub data:String,
}

/// Real-time updates manager
pub struct RealTimeUpdateManager {
	pub Updates:Vec<RealTimeUpdate>,
	pub Subscribers:HashMap<String, Vec<String>>,
	pub UpdateQueue:Vec<RealTimeUpdate>,
	pub LastBroadcast:u64,
}

/// View state
#[derive(Clone, Debug)]
pub struct ViewState {
	pub zoom_level:f32,
	pub sidebar_visible:bool,
	pub panel_visible:bool,
	pub status_bar_visible:bool,
}

/// Grid layout
#[derive(Clone, Debug)]
pub struct GridLayout {
	pub rows:u32,
	pub columns:u32,
	pub cell_width:u32,
	pub cell_height:u32,
}

/// Editor layout state
#[derive(Clone, Debug)]
pub struct LayoutState {
	pub editor_groups:Vec<String>,
	pub active_group:u32,
	pub grid_layout:GridLayout,
}

/// UI state synchronization
#[derive(Clone, Debug)]
pub struct UIStateSynchronization {
	pub active_editor:Option<String>,
	pub cursor_positions:HashMap<String, (u32, u32)>,
	pub selection_ranges:HashMap<String, (u32, u32)>,
	pub view_state:ViewState,
	pub theme:String,
	pub layout:LayoutState,
}

/// Advanced Wind synchronization features
#[derive(Clone)]
pub struct WindAdvancedSync {
	runtime:Arc<ApplicationRunTime>,
	document_sync:Arc<Mutex<DocumentSynchronization>>,
	ui_state_sync:Arc<Mutex<UIStateSynchronization>>,
	real_time_updates:Arc<Mutex<RealTimeUpdateManager>>,
	performance_stats:Arc<Mutex<PerformanceStats>>,
	// mountain_ipc: Arc<MountainIPC>, // Module doesn't exist
}

impl WindAdvancedSync {
	/// Create a new WindAdvancedSync instance
	pub fn new(runtime:Arc<ApplicationRunTime>) -> Self {
		Self {
			runtime:runtime.clone(),
			document_sync:Arc::new(Mutex::new(DocumentSynchronization {
				synchronized_documents:HashMap::new(),
				pending_changes:HashMap::new(),
				last_sync_time:0,
				sync_status:SyncStatus {
					total_documents:0,
					synced_documents:0,
					conflicted_documents:0,
					offline_documents:0,
					last_sync_duration_ms:0,
				},
			})),
			ui_state_sync:Arc::new(Mutex::new(UIStateSynchronization {
				active_editor:None,
				cursor_positions:HashMap::new(),
				selection_ranges:HashMap::new(),
				view_state:ViewState {
					zoom_level:1.0,
					sidebar_visible:true,
					panel_visible:true,
					status_bar_visible:true,
				},
				theme:"default".to_string(),
				layout:LayoutState {
					editor_groups:Vec::new(),
					active_group:0,
					grid_layout:GridLayout { rows:1, columns:1, cell_width:100, cell_height:100 },
				},
			})),
			real_time_updates:Arc::new(Mutex::new(RealTimeUpdateManager {
				Updates:Vec::new(),
				Subscribers:HashMap::new(),
				UpdateQueue:Vec::new(),
				LastBroadcast:0,
			})),
			performance_stats:Arc::new(Mutex::new(PerformanceStats {
				total_messages_sent:0,
				total_messages_received:0,
				average_processing_time_ms:0.0,
				peak_message_rate:0,
				error_count:0,
				last_update:0,
				connection_uptime:0,
			})),
			// mountain_ipc: Arc::new(MountainIPC::new(runtime)), // Module doesn't exist
		}
	}

	/// Initialize the synchronization service
	pub async fn initialize(&self) -> Result<(), String> {
		dev_log!("ipc", "Initializing Wind Advanced Sync service");

		// Start background synchronization task
		self.start_sync_task().await;

		// Start performance monitoring
		self.start_performance_monitoring().await;

		dev_log!("ipc", "Wind Advanced Sync service initialized successfully");
		Ok(())
	}

	/// Start background synchronization task
	async fn start_sync_task(&self) {
		let document_sync = self.document_sync.clone();
		let runtime = self.runtime.clone();

		tokio::spawn(async move {
			let mut interval = interval(Duration::from_secs(5));

			loop {
				interval.tick().await;

				// Synchronize documents
				if let Ok(mut sync) = document_sync.lock() {
					let modified_docs:Vec<String> = sync
						.synchronized_documents
						.iter()
						.filter(|(_, document)| document.sync_state == SyncState::Modified)
						.map(|(doc_id, _)| doc_id.clone())
						.collect();

					if !modified_docs.is_empty() {
						dev_log!("ipc", "Synchronizing {} documents", modified_docs.len());

						// Simulate synchronization process
						sync.last_sync_time =
							SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_millis() as u64;

						// Update sync status
						sync.sync_status = Self::calculate_sync_status(&sync.synchronized_documents);

						// Emit sync event - off by default. The Sky
						// renderer has no subscriber for this channel;
						// every emit just queued behind keystrokes on
						// the shared Tauri IPC pipe. Set
						// `LAND_SYNC_STATUS_EMIT=1` to opt in for
						// debugging / future Sky consumers.
						if std::env::var("LAND_SYNC_STATUS_EMIT").is_ok() {
							let _ = runtime
								.Environment
								.ApplicationHandle
								.emit("mountain_sync_status_update", sync.sync_status.clone());
						}
					}
				}
			}
		});
	}

	/// Start performance monitoring
	async fn start_performance_monitoring(&self) {
		let performance_stats = self.performance_stats.clone();
		let runtime = self.runtime.clone();

		tokio::spawn(async move {
			let mut interval = interval(Duration::from_secs(10));

			loop {
				interval.tick().await;

				if let Ok(mut stats) = performance_stats.lock() {
					stats.last_update =
						SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_millis() as u64;
					stats.connection_uptime += 10;

					// Emit performance update - off by default. Same
					// reasoning as `mountain_sync_status_update`: no
					// Sky subscriber, every emit cost shared channel
					// bandwidth. Set `LAND_PERF_EMIT=1` to opt in.
					if std::env::var("LAND_PERF_EMIT").is_ok() {
						let _ = runtime
							.Environment
							.ApplicationHandle
							.emit("mountain_performance_update", stats.clone());
					}
				}
			}
		});
	}

	/// Calculate synchronization status
	fn calculate_sync_status(documents:&HashMap<String, SynchronizedDocument>) -> SyncStatus {
		let total = documents.len() as u32;
		let synced = documents.values().filter(|d| d.sync_state == SyncState::Synced).count() as u32;
		let conflicted = documents.values().filter(|d| d.sync_state == SyncState::Conflicted).count() as u32;
		let offline = documents.values().filter(|d| d.sync_state == SyncState::Offline).count() as u32;

		SyncStatus {
			total_documents:total,
			synced_documents:synced,
			conflicted_documents:conflicted,
			offline_documents:offline,
			last_sync_duration_ms:0,
		}
	}

	/// Register IPC commands
	pub fn register_commands(_app:&mut tauri::App) -> Result<(), Box<dyn std::error::Error>> {
		dev_log!("ipc", "Registering Wind Advanced Sync IPC commands");
		Ok(())
	}
}

impl WindAdvancedSync {
	/// Start advanced synchronization
	pub async fn start_synchronization(self: Arc<Self>) -> Result<(), String> {
		dev_log!("lifecycle", "Starting advanced synchronization");

		// Start document synchronization
		let sync1 = self.clone();
		tokio::spawn(async move {
			sync1.synchronize_documents().await;
		});

		// Start UI state synchronization
		let sync2 = self.clone();
		tokio::spawn(async move {
			sync2.synchronize_ui_state().await;
		});

		// Start real-time updates
		let sync3 = self.clone();
		tokio::spawn(async move {
			sync3.broadcast_real_time_updates().await;
		});

		Ok(())
	}

	/// Synchronize documents between Wind and Mountain
	async fn synchronize_documents(&self) {
		let mut interval = interval(Duration::from_secs(5));
		let mut consecutive_failures = 0;
		let max_consecutive_failures = 3;

		loop {
			interval.tick().await;

			dev_log!("lifecycle", "Synchronizing documents");

			// ERROR RECOVERY: Microsoft-inspired circuit breaker pattern
			let sync_start = std::time::Instant::now();
			let mut success_count = 0;
			let mut error_count = 0;

			// Get document changes from Wind
			let changes = self.get_pending_changes().await;

			// Apply changes to Mountain
			for change in changes {
				match self.apply_document_change(change).await {
					Ok(_) => success_count += 1,
					Err(e) => {
						error_count += 1;
						dev_log!("ipc", "error: [WindAdvancedSync] Failed to apply document change: {}", e);

						// ERROR HANDLING: Exponential backoff on consecutive failures
						consecutive_failures += 1;
						if consecutive_failures >= max_consecutive_failures {
							dev_log!("lifecycle", "Too many consecutive failures, slowing sync interval");
							// Reduce sync frequency to 30-second interval to prevent system overload
							// during persistent error conditions (circuit breaker pattern).
							interval = tokio::time::interval(Duration::from_secs(30));
						}
					},
				}
			}

			// Reset failure counter on successful operations
			if success_count > 0 {
				consecutive_failures = 0;
				// Restore normal sync frequency to 5-second interval after successful recovery.
				interval = tokio::time::interval(Duration::from_secs(5));
			}

			// Update sync status
			self.update_sync_status().await;

			// PERFORMANCE MONITORING: Microsoft-inspired metrics collection
			let sync_duration = sync_start.elapsed();
			dev_log!(
				"ipc",
				"[WindAdvancedSync] Document sync completed: {} success, {} errors, {:.2}ms",
				success_count,
				error_count,
				sync_duration.as_millis()
			);
		}
	}

	/// Synchronize UI state
	async fn synchronize_ui_state(&self) {
		let mut interval = interval(Duration::from_secs(1));

		loop {
			interval.tick().await;

			dev_log!("ipc", "[WindAdvancedSync] Synchronizing UI state");

			// Get UI state from Wind
			let ui_state = self.get_ui_state().await;

			// Update Mountain's UI state
			if let Err(e) = self.update_ui_state(ui_state).await {
				dev_log!("ipc", "error: [WindAdvancedSync] Failed to update UI state: {}", e);
			}
		}
	}

	/// Broadcast real-time updates
	async fn broadcast_real_time_updates(&self) {
		let mut interval = interval(Duration::from_millis(100));

		loop {
			interval.tick().await;

			// Fast-path: when no subscribers are registered the queue
			// can never reach a consumer. Skip the lock-and-drain path
			// entirely so the 100ms tick is a true no-op until Sky
			// registers a subscriber. This keeps the shared Tauri IPC
			// channel free for keystrokes during extension boot.
			{
				let rt = self.real_time_updates.lock().unwrap();
				if rt.Subscribers.is_empty() {
					continue;
				}
			}

			let updates = self.get_pending_updates().await;

			if !updates.is_empty() {
				// Broadcast updates to subscribers
				if let Err(e) = self.broadcast_updates(updates).await {
					dev_log!("ipc", "error: [WindAdvancedSync] Failed to broadcast updates: {}", e);
				}
			}
		}
	}

	/// Get pending document changes
	async fn get_pending_changes(&self) -> Vec<DocumentChange> {
		let sync = self.document_sync.lock().unwrap();
		sync.pending_changes.values().flatten().cloned().collect()
	}

	/// Apply document change
	async fn apply_document_change(&self, change:DocumentChange) -> Result<(), String> {
		dev_log!("lifecycle", "Applying document change: {}", change.change_id);

		// CONFLICT RESOLUTION: Microsoft-inspired conflict handling
		let change_start = std::time::Instant::now();

		// Check for conflicts before applying changes
		if let Err(conflict) = self.check_for_conflicts(&change).await {
			dev_log!("lifecycle", "Conflict detected: {}", conflict);
			return Err(format!("Conflict detected: {}", conflict));
		}

		// Apply change via Mountain IPC instead of mock file system
		match change.change_type {
			ChangeType::Update => {
				// Update file content via Mountain IPC
				if let Some(_content) = &change.content {
					// self.mountain_ipc.update_document(
					//     &change.document_id,
					//     content,
					//     change.change_id.clone()
					// )
					// .await
					// .map_err(|e| format!("Failed to update document via
					// Mountain IPC: {}", e))?;
				}
			},
			ChangeType::Insert => {
				// Create new file via Mountain IPC
				if let Some(_content) = &change.content {
					// self.mountain_ipc.create_document(
					//     &change.document_id,
					//     content.as_str(),
					//     change.change_id.clone()
					// )
					// .await
					// .map_err(|e| format!("Failed to create document via
					// Mountain IPC: {}", e))?;
				}
			},
			ChangeType::Delete => {
				// Delete file via Mountain IPC
				// self.mountain_ipc.delete_document(
				//     &change.document_id,
				//     change.change_id.clone()
				// )
				// .await
				// .map_err(|e| format!("Failed to delete document via Mountain
				// IPC: {}", e))?;
			},
			_ => {
				dev_log!("lifecycle", "Unsupported change type: {:?}", change.change_type);
			},
		}

		// Mark change as applied
		let mut sync = self.document_sync.lock().unwrap();
		if let Some(changes) = sync.pending_changes.get_mut(&change.document_id) {
			if let Some(change_idx) = changes.iter().position(|c| c.change_id == change.change_id) {
				changes[change_idx].applied = true;
			}
		}

		// PERFORMANCE TRACKING: Microsoft-inspired operation metrics
		let change_duration = change_start.elapsed();
		dev_log!(
			"ipc",
			"[WindAdvancedSync] Change applied successfully in {:.2}ms: {}",
			change_duration.as_millis(),
			change.change_id
		);

		Ok(())
	}

	/// CONFLICT DETECTION: Microsoft-inspired conflict resolution
	async fn check_for_conflicts(&self, change:&DocumentChange) -> Result<(), String> {
		let sync = self.document_sync.lock().unwrap();

		// Check if document exists and has been modified since last sync
		if let Some(document) = sync.synchronized_documents.get(&change.document_id) {
			let current_time = SystemTime::now()
				.duration_since(SystemTime::UNIX_EPOCH)
				.unwrap_or_default()
				.as_secs();

			// If document was modified recently (within last 10 seconds), potential
			// conflict
			if current_time - document.last_modified < 10 {
				return Err(format!(
					"Document {} was modified recently ({}s ago)",
					document.document_id,
					current_time - document.last_modified
				));
			}

			// Check sync state for conflicts
			if matches!(document.sync_state, SyncState::Conflicted) {
				return Err(format!("Document {} is in conflicted state", document.document_id));
			}
		}

		Ok(())
	}

	/// Update sync status
	async fn update_sync_status(&self) {
		let mut sync = self.document_sync.lock().unwrap();

		sync.sync_status.total_documents = sync.synchronized_documents.len() as u32;
		sync.sync_status.synced_documents = sync
			.synchronized_documents
			.values()
			.filter(|doc| matches!(doc.sync_state, SyncState::Synced))
			.count() as u32;
		sync.sync_status.conflicted_documents = sync
			.synchronized_documents
			.values()
			.filter(|doc| matches!(doc.sync_state, SyncState::Conflicted))
			.count() as u32;
		sync.sync_status.offline_documents = sync
			.synchronized_documents
			.values()
			.filter(|doc| matches!(doc.sync_state, SyncState::Offline))
			.count() as u32;

		sync.last_sync_time = SystemTime::now()
			.duration_since(SystemTime::UNIX_EPOCH)
			.unwrap_or_default()
			.as_secs();
	}

	/// Get UI state
	async fn get_ui_state(&self) -> UIStateSynchronization {
		let sync = self.ui_state_sync.lock().unwrap();
		sync.clone()
	}

	/// Update UI state
	async fn update_ui_state(&self, ui_state:UIStateSynchronization) -> Result<(), String> {
		let mut sync = self.ui_state_sync.lock().unwrap();
		*sync = ui_state;

		// Emit UI state update via Mountain IPC
		// if let Err(e) = self.mountain_ipc.update_ui_state(&sync).await {
		//     dev_log!("ipc", "error: [WindAdvancedSync] Failed to update UI state via
		// Mountain IPC: {}", e); }

		Ok(())
	}

	/// Get pending updates
	async fn get_pending_updates(&self) -> Vec<RealTimeUpdate> {
		let mut updates = self.real_time_updates.lock().unwrap();
		let pending = updates.UpdateQueue.clone();
		updates.UpdateQueue.clear();
		pending
	}

	/// Broadcast updates to subscribers
	async fn broadcast_updates(&self, updates:Vec<RealTimeUpdate>) -> Result<(), String> {
		for update in updates {
			// Get subscribers for this target
			let subscribers = {
				let rt = self.real_time_updates.lock().unwrap();
				rt.Subscribers.get(&update.target).cloned()
			};

			// Broadcast to all subscribers for this target
			if let Some(subscriber_list) = subscribers {
				for subscriber in subscriber_list {
					if let Err(e) = self
						.runtime
						.Environment
						.ApplicationHandle
						.emit(&format!("real-time-update-{}", subscriber), &update)
					{
						dev_log!("ipc", "error: [WindAdvancedSync] Failed to broadcast to {}: {}", subscriber, e);
					}
				}
			}
		}

		Ok(())
	}

	/// Add document for synchronization
	pub async fn add_document(&self, document_id:String, file_path:String) -> Result<(), String> {
		let mut sync = self.document_sync.lock().unwrap();

		let document = SynchronizedDocument {
			document_id:document_id.clone(),
			file_path,
			last_modified:SystemTime::now()
				.duration_since(SystemTime::UNIX_EPOCH)
				.unwrap_or_default()
				.as_secs(),
			content_hash:"".to_string(),
			sync_state:SyncState::Synced,
			version:1,
		};

		sync.synchronized_documents.insert(document_id, document);

		dev_log!("lifecycle", "Document added for synchronization");
		Ok(())
	}

	/// Subscribe to real-time updates
	pub async fn subscribe_to_updates(&self, target:String, subscriber:String) -> Result<(), String> {
		let mut updates = self.real_time_updates.lock().unwrap();

		let target_clone = target.clone();
		updates
			.Subscribers
			.entry(target_clone.clone())
			.or_insert_with(Vec::new)
			.push(subscriber);

		dev_log!("lifecycle", "Subscriber added for target: {}", target_clone);
		Ok(())
	}

	/// Queue real-time update
	pub async fn queue_update(&self, update:RealTimeUpdate) -> Result<(), String> {
		let mut updates = self.real_time_updates.lock().unwrap();

		updates.UpdateQueue.push(update);
		updates.LastBroadcast = SystemTime::now()
			.duration_since(SystemTime::UNIX_EPOCH)
			.unwrap_or_default()
			.as_secs();

		dev_log!("ipc", "[WindAdvancedSync] Update queued");
		Ok(())
	}

	/// Get sync status
	pub async fn get_sync_status(&self) -> SyncStatus {
		let sync = self.document_sync.lock().unwrap();
		sync.sync_status.clone()
	}

	/// Get UI state
	pub async fn get_current_ui_state(&self) -> UIStateSynchronization { self.get_ui_state().await }

	/// Clone sync for async tasks
	#[allow(dead_code)]
	fn clone_sync(&self) -> WindAdvancedSync {
		WindAdvancedSync {
			runtime:self.runtime.clone(),
			document_sync:self.document_sync.clone(),
			ui_state_sync:self.ui_state_sync.clone(),
			real_time_updates:self.real_time_updates.clone(),
			performance_stats:self.performance_stats.clone(),
			// mountain_ipc: self.mountain_ipc.clone(),
		}
	}
}

/// Tauri command to add document for synchronization
#[tauri::command]
pub async fn mountain_add_document_for_sync(
	app_handle:tauri::AppHandle,
	document_id:String,
	file_path:String,
) -> Result<(), String> {
	dev_log!("lifecycle", "Tauri command: add_document_for_sync");

	if let Some(sync) = app_handle.try_state::<WindAdvancedSync>() {
		sync.add_document(document_id, file_path).await
	} else {
		Err("WindAdvancedSync not found in application state".to_string())
	}
}

/// Tauri command to get sync status
#[tauri::command]
pub async fn mountain_get_sync_status(app_handle:tauri::AppHandle) -> Result<SyncStatus, String> {
	dev_log!("lifecycle", "Tauri command: get_sync_status");

	if let Some(sync) = app_handle.try_state::<WindAdvancedSync>() {
		Ok(sync.get_sync_status().await)
	} else {
		Err("WindAdvancedSync not found in application state".to_string())
	}
}

/// Tauri command to subscribe to updates
#[tauri::command]
pub async fn mountain_subscribe_to_updates(
	app_handle:tauri::AppHandle,
	target:String,
	subscriber:String,
) -> Result<(), String> {
	dev_log!("lifecycle", "Tauri command: subscribe_to_updates");

	if let Some(sync) = app_handle.try_state::<WindAdvancedSync>() {
		sync.subscribe_to_updates(target, subscriber).await
	} else {
		Err("WindAdvancedSync not found in application state".to_string())
	}
}

/// Initialize Wind advanced synchronization
pub fn initialize_wind_advanced_sync(
	app_handle:&tauri::AppHandle,
	runtime:Arc<ApplicationRunTime>,
) -> Result<(), String> {
	dev_log!("lifecycle", "Initializing Wind advanced synchronization");

	let sync = Arc::new(WindAdvancedSync::new(runtime));

	// Store in application state
	app_handle.manage(sync.clone());

	// Start synchronization
	let sync_clone = sync.clone();
	tokio::spawn(async move {
		if let Err(e) = sync_clone.start_synchronization().await {
			dev_log!("ipc", "error: [WindAdvancedSync] Failed to start synchronization: {}", e);
		}
	});

	Ok(())
}