Mountain/IPC/
WindAdvancedSync.rs

1//! # Wind Advanced Synchronization - Real-time Document & UI Sync
2//!
3//! **File Responsibilities:**
4//! This module implements advanced synchronization features that keep Wind's
5//! frontend state in sync with Mountain's backend state in real-time. It
6//! handles document changes, UI state updates, and broadcast updates across the
7//! editor ecosystem.
8//!
9//! **Architectural Role in Wind-Mountain Connection:**
10//!
11//! The WindAdvancedSync module is responsible for:
12//!
13//! 1. **Document Synchronization:** Real-time tracking and synchronization of
14//!    document changes between Wind (frontend editor) and Mountain (backend
15//!    services)
16//! 2. **UI State Sync:** Synchronizing UI state across multiple editor windows
17//!    - Cursor positions
18//!    - Selection ranges
19//!    - Zoom levels
20//!    - Theme and layout
21//! 3. **Real-time Broadcasting:** Broadcasting updates to interested
22//!    subscribers
23//! 4. **Conflict Detection:** Identifying and handling conflicting changes
24//! 5. **Performance Tracking:** Monitoring sync performance and health
25//!
26//! **Synchronization Architecture:**
27//!
28//! **Three Sync Layers:**
29//!
30//! **1. Document Synchronization (Every 5 seconds):**
31//! ```
32//! Wind Editor (User Edits)
33//!     |
34//!     | Detect changes
35//!     v
36//! WindAdvancedSync
37//!     |
38//!     | Check for conflicts
39//!     v
40//! Mountain Services
41//!     |
42//!     | Apply changes
43//!     v
44//! File System / Storage
45//! ```
46//!
47//! **2. UI State Synchronization (Every 1 second):**
48//! ```
49//! Wind UI Window
50//!     |
51//!     | Capture state (cursor, selection, zoom)
52//!     v
53//! WindAdvancedSync
54//!     |
55//!     | Update internal state
56//!     v
57//! Apply to other windows
58//! ```
59//!
60//! **3. Real-time Updates (Every 100ms):**
61//! ```
62//! Subscribed Listeners
63//!     ^
64//!     | Broadcast updates
65//!     |
66//! WindAdvancedSync
67//!     |
68//!     | Queue updates
69//!     v
70//! Update Queue
71//! ```
72//!
73//! **Document Synchronization States:**
74//!
75//! ```rust
76//! enum SyncState {
77//! 	Modified,   // Changed locally, not synced
78//! 	Synced,     // Successfully synchronized
79//! 	Conflicted, // Conflicts need resolution
80//! 	Offline,    // Cannot sync (offline)
81//! }
82//! ```
83//!
84//! **Change Types Supported:**
85//!
86//! ```rust
87//! enum ChangeType {
88//! 	Update, // File content updated
89//! 	Insert, // New file created
90//! 	Delete, // File deleted
91//! 	Move,   // File moved/renamed
92//! 	Other,  // Other changes
93//! }
94//! ```
95//!
96//! **Conflict Detection (Microsoft-Inspired):**
97//!
98//! **Detection Criteria:**
99//! - Document modified recently (within 10 seconds of last sync)
100//! - Document is already in conflicted state
101//! - Multiple simultaneous changes detected
102//!
103//! **Conflict Response:**
104//! ```rust
105//! return Err(format!(
106//! 	"Conflict detected: Document {} was modified recently ({}s ago)",
107//! 	document_id,
108//! 	current_time - document.last_modified
109//! ));
110//! ```
111//!
112//! **Error Recovery (Circuit Breaker Pattern):**
113//!
114//! **Circuit Breaker States:**
115//! 1. **Closed (Normal):** Operations proceed normally
116//! 2. **Open (Degraded):** Too many failures, slow down sync interval
117//! 3. **Half-Open (Testing):** Slowly testing if system recovered
118//!
119//! **Recovery Logic:**
120//! - Track consecutive failures (max 3)
121//! - On reaching limit: Increase sync interval to 30s
122//! - On success: Reset interval to 5s
123//! - Provides protection against cascading failures
124//!
125//! **Trackable Metrics:**
126//!
127//! **Sync.Status:**
128//! ```rust
129//! SyncStatus {
130//! 	total_documents:u32,       // All tracked documents
131//! 	synced_documents:u32,      // Successfully synced
132//! 	conflicted_documents:u32,  // Have conflicts
133//! 	offline_documents:u32,     // Cannot sync
134//! 	last_sync_duration_ms:u64, // Time for last sync
135//! }
136//! ```
137//!
138//! **UI State Tracked:**
139//!
140//! ```rust
141//! UIStateSynchronization {
142//!     active_editor: Option<String>,
143//!     cursor_positions: HashMap<String, (u32, u32)>,  // Document -> (line, col)
144//!     selection_ranges: HashMap<String, (u32, u32)>,   // Document -> (start, end)
145//!     view_state: ViewState {
146//!         zoom_level: f32,
147//!         sidebar_visible: bool,
148//!         panel_visible: bool,
149//!         status_bar_visible: bool,
150//!     },
151//!     theme: String,
152//!     layout: LayoutState,
153//! }
154//! ```
155//!
156//! **Real-time Update System:**
157//!
158//! **Update Flow:**
159//! 1. Queue updates as they occur
160//! 2. Subscriber management per target
161//! 3. Periodic broadcast (100ms)
162//! 4. Emit events via Tauri
163//!
164//! **Subscription Model:**
165//! ```rust
166//! // Subscribe to updates for a target
167//! sync.subscribe_to_updates("file-changes", "window-1").await?;
168//!
169//! // Queue updates
170//! sync.queue_update(RealTimeUpdate { target:"file-changes".to_string(), data:modified_content })
171//! 	.await?;
172//!
173//! // Broadcasts go to:
174//! // - "real-time-update-window-1"
175//! // - "real-time-update-window-2"
176//! // etc...
177//! ```
178//!
179//! **Tauri Commands:**
180//!
181//! - `mountain_add_document_for_sync` - Add document to sync tracking
182//! - `mountain_get_sync_status` - Get current sync status
183//! - `mountain_subscribe_to_updates` - Subscribe to real-time updates
184//!
185//! **Events Emitted:**
186//!
187//! - `mountain_sync_status_update` - Sync status changes
188//! - `mountain_performance_update` - Performance metrics
189//! - `real-time-update-{subscriber}` - Real-time updates
190//!
191//! **Initialization:**
192//!
193//! ```text
194//! // In Mountain setup
195//! let sync = Arc::new(WindAdvancedSync::new(runtime));
196//! app_handle.manage(sync.clone());
197//!
198//! // Start sync tasks
199//! let sync_clone = sync.clone();
200//! tokio::spawn(async move {
201//! sync_clone.start_synchronization().await;
202//! });
203//! ```
204//!
205//! **Usage Examples:**
206//!
207//! **Add Document for Sync:**
208//! ```typescript
209//! // From Wind TypeScript
210//! await invoke('mountain_add_document_for_sync', {
211//!     documentId: 'file-123',
212//!     filePath: '/project/src/main.rs'
213//! });
214//! ```
215//!
216//! **Check Sync Status:**
217//! ```typescript
218//! const status = await invoke('mountain_get_sync_status');
219//! console.log(`Synced: ${status.syncedDocuments}/${status.totalDocuments}`);
220//! ```
221//!
222//! **Subscribe to Updates:**
223//! ```typescript
224//! await invoke('mountain_subscribe_to_updates', {
225//!     target: 'file-changes',
226//!     subscriber: 'my-window-id'
227//! });
228//!
229//! // Listen for updates
230//! app.handle.listen('real-time-update-my-window-id', (event) => {
231//!     console.log('Real-time update:', event.payload);
232//! });
233//! ```
234//!
235//! **Performance Tracking:**
236//!
237//! **Metrics Collected:**
238//! - Total messages sent/received
239//! - Average latency
240//! - Connection uptime
241//! - Error count
242//! - Sync duration
243//!
244//! **Logged on Every Operation:**
245//! ```text
246//! trace!(
247//! "Document sync completed: {} success, {} errors, {:.2}ms",
248//! success_count,
249//! error_count,
250//! sync_duration.as_millis()
251//! );
252//! ```
253//!
254//! **Integration with Other Modules:**
255//!
256//! **TauriIPCServer:**
257//! - Used for broadcasting events to Wind
258//! - Emits sync and performance updates
259//!
260//! **AdvancedFeatures:**
261//! - Collaboration sessions work with document sync
262//! - Shared focus on real-time updates
263//!
264//! **StatusReporter:**
265//! - Sync status reported to Sky for monitoring
266//! - Performance metrics shared
267//!
268//! **Future Enhancements:**
269//!
270//! - **Operational Transformation:** For collaborative editing
271//! - **Conflict Resolution UI:** User-facing conflict resolution
272//! - **Delta Sync:** Only sync changed portions
273//! - **Sync Prioritization:** Prioritize active documents
274//! - **Offline Sync Support:** Queue changes when offline
275
276use std::{
277	collections::HashMap,
278	sync::{Arc, Mutex},
279	time::{Duration, SystemTime},
280};
281
282use log::{debug, error, info, trace, warn};
283use serde::{Deserialize, Serialize};
284use tokio::time::interval;
285use tauri::{AppHandle, Emitter, Manager, State, command};
286use CommonLibrary::{Environment::Requires::Requires, FileSystem::FileSystemWriter::FileSystemWriter};
287
288use crate::{IPC::AdvancedFeatures::PerformanceStats, RunTime::ApplicationRunTime::ApplicationRunTime};
289
290// TEMPORARY: MountainIPC module not yet implemented
291// This import is needed for full document synchronization with Mountain
292// backend. TODO: Create MountainIPC module and implement document operations.
293// // use crate::IPC::MountainIPC::MountainIPC;
294
295/// Synchronization status
296#[derive(Clone, Serialize, Deserialize, Debug)]
297pub struct SyncStatus {
298	pub total_documents:u32,
299	pub synced_documents:u32,
300	pub conflicted_documents:u32,
301	pub offline_documents:u32,
302	pub last_sync_duration_ms:u64,
303}
304
305/// Document synchronization state
306#[derive(Clone, Copy, PartialEq, Debug)]
307pub enum SyncState {
308	Modified,
309	Synced,
310	Conflicted,
311	Offline,
312}
313
314/// Change type for document modifications
315#[derive(Clone, Copy, Debug)]
316pub enum ChangeType {
317	Update,
318	Insert,
319	Delete,
320	Move,
321	Other,
322}
323
324/// Single synchronized document
325#[derive(Clone, Debug)]
326pub struct SynchronizedDocument {
327	pub document_id:String,
328	pub file_path:String,
329	pub last_modified:u64,
330	pub content_hash:String,
331	pub sync_state:SyncState,
332	pub version:u32,
333}
334
335/// Document change
336#[derive(Clone, Debug)]
337pub struct DocumentChange {
338	pub change_id:String,
339	pub document_id:String,
340	pub change_type:ChangeType,
341	pub content:Option<String>,
342	pub applied:bool,
343}
344
345/// Document synchronization state
346pub struct DocumentSynchronization {
347	pub synchronized_documents:HashMap<String, SynchronizedDocument>,
348	pub pending_changes:HashMap<String, Vec<DocumentChange>>,
349	pub last_sync_time:u64,
350	pub sync_status:SyncStatus,
351}
352
353/// Real-time update
354#[derive(Clone, Serialize, Deserialize, Debug)]
355pub struct RealTimeUpdate {
356	pub target:String,
357	pub data:String,
358}
359
360/// Real-time updates manager
361pub struct RealTimeUpdates {
362	pub updates:Vec<RealTimeUpdate>,
363	pub subscribers:HashMap<String, Vec<String>>,
364	pub update_queue:Vec<RealTimeUpdate>,
365	pub last_broadcast:u64,
366}
367
368/// View state
369#[derive(Clone, Debug)]
370pub struct ViewState {
371	pub zoom_level:f32,
372	pub sidebar_visible:bool,
373	pub panel_visible:bool,
374	pub status_bar_visible:bool,
375}
376
377/// Grid layout
378#[derive(Clone, Debug)]
379pub struct GridLayout {
380	pub rows:u32,
381	pub columns:u32,
382	pub cell_width:u32,
383	pub cell_height:u32,
384}
385
386/// Editor layout state
387#[derive(Clone, Debug)]
388pub struct LayoutState {
389	pub editor_groups:Vec<String>,
390	pub active_group:u32,
391	pub grid_layout:GridLayout,
392}
393
394/// UI state synchronization
395#[derive(Clone, Debug)]
396pub struct UIStateSynchronization {
397	pub active_editor:Option<String>,
398	pub cursor_positions:HashMap<String, (u32, u32)>,
399	pub selection_ranges:HashMap<String, (u32, u32)>,
400	pub view_state:ViewState,
401	pub theme:String,
402	pub layout:LayoutState,
403}
404
405/// Advanced Wind synchronization features
406#[derive(Clone)]
407pub struct WindAdvancedSync {
408	runtime:Arc<ApplicationRunTime>,
409	document_sync:Arc<Mutex<DocumentSynchronization>>,
410	ui_state_sync:Arc<Mutex<UIStateSynchronization>>,
411	real_time_updates:Arc<Mutex<RealTimeUpdates>>,
412	performance_stats:Arc<Mutex<PerformanceStats>>,
413	// mountain_ipc: Arc<MountainIPC>, // Module doesn't exist
414}
415
416impl WindAdvancedSync {
417	/// Create a new WindAdvancedSync instance
418	pub fn new(runtime:Arc<ApplicationRunTime>) -> Self {
419		Self {
420			runtime:runtime.clone(),
421			document_sync:Arc::new(Mutex::new(DocumentSynchronization {
422				synchronized_documents:HashMap::new(),
423				pending_changes:HashMap::new(),
424				last_sync_time:0,
425				sync_status:SyncStatus {
426					total_documents:0,
427					synced_documents:0,
428					conflicted_documents:0,
429					offline_documents:0,
430					last_sync_duration_ms:0,
431				},
432			})),
433			ui_state_sync:Arc::new(Mutex::new(UIStateSynchronization {
434				active_editor:None,
435				cursor_positions:HashMap::new(),
436				selection_ranges:HashMap::new(),
437				view_state:ViewState {
438					zoom_level:1.0,
439					sidebar_visible:true,
440					panel_visible:true,
441					status_bar_visible:true,
442				},
443				theme:"default".to_string(),
444				layout:LayoutState {
445					editor_groups:Vec::new(),
446					active_group:0,
447					grid_layout:GridLayout { rows:1, columns:1, cell_width:100, cell_height:100 },
448				},
449			})),
450			real_time_updates:Arc::new(Mutex::new(RealTimeUpdates {
451				updates:Vec::new(),
452				subscribers:HashMap::new(),
453				update_queue:Vec::new(),
454				last_broadcast:0,
455			})),
456			performance_stats:Arc::new(Mutex::new(PerformanceStats {
457				total_messages_sent:0,
458				total_messages_received:0,
459				average_processing_time_ms:0.0,
460				peak_message_rate:0,
461				error_count:0,
462				last_update:0,
463				connection_uptime:0,
464			})),
465			// mountain_ipc: Arc::new(MountainIPC::new(runtime)), // Module doesn't exist
466		}
467	}
468
469	/// Initialize the synchronization service
470	pub async fn initialize(&self) -> Result<(), String> {
471		info!("Initializing Wind Advanced Sync service");
472
473		// Start background synchronization task
474		self.start_sync_task().await;
475
476		// Start performance monitoring
477		self.start_performance_monitoring().await;
478
479		info!("Wind Advanced Sync service initialized successfully");
480		Ok(())
481	}
482
483	/// Start background synchronization task
484	async fn start_sync_task(&self) {
485		let document_sync = self.document_sync.clone();
486		let runtime = self.runtime.clone();
487
488		tokio::spawn(async move {
489			let mut interval = interval(Duration::from_secs(5));
490
491			loop {
492				interval.tick().await;
493
494				// Synchronize documents
495				if let Ok(mut sync) = document_sync.lock() {
496					let modified_docs:Vec<String> = sync
497						.synchronized_documents
498						.iter()
499						.filter(|(_, document)| document.sync_state == SyncState::Modified)
500						.map(|(doc_id, _)| doc_id.clone())
501						.collect();
502
503					if !modified_docs.is_empty() {
504						debug!("Synchronizing {} documents", modified_docs.len());
505
506						// Simulate synchronization process
507						sync.last_sync_time =
508							SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_millis() as u64;
509
510						// Update sync status
511						sync.sync_status = Self::calculate_sync_status(&sync.synchronized_documents);
512
513						// Emit sync event
514						let _ = runtime
515							.Environment
516							.ApplicationHandle
517							.emit("mountain_sync_status_update", sync.sync_status.clone());
518					}
519				}
520			}
521		});
522	}
523
524	/// Start performance monitoring
525	async fn start_performance_monitoring(&self) {
526		let performance_stats = self.performance_stats.clone();
527		let runtime = self.runtime.clone();
528
529		tokio::spawn(async move {
530			let mut interval = interval(Duration::from_secs(10));
531
532			loop {
533				interval.tick().await;
534
535				if let Ok(mut stats) = performance_stats.lock() {
536					stats.last_update =
537						SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_millis() as u64;
538					stats.connection_uptime += 10;
539
540					// Emit performance update
541					let _ = runtime
542						.Environment
543						.ApplicationHandle
544						.emit("mountain_performance_update", stats.clone());
545				}
546			}
547		});
548	}
549
550	/// Calculate synchronization status
551	fn calculate_sync_status(documents:&HashMap<String, SynchronizedDocument>) -> SyncStatus {
552		let total = documents.len() as u32;
553		let synced = documents.values().filter(|d| d.sync_state == SyncState::Synced).count() as u32;
554		let conflicted = documents.values().filter(|d| d.sync_state == SyncState::Conflicted).count() as u32;
555		let offline = documents.values().filter(|d| d.sync_state == SyncState::Offline).count() as u32;
556
557		SyncStatus {
558			total_documents:total,
559			synced_documents:synced,
560			conflicted_documents:conflicted,
561			offline_documents:offline,
562			last_sync_duration_ms:0,
563		}
564	}
565
566	/// Register IPC commands
567	pub fn register_commands(_app:&mut tauri::App) -> Result<(), Box<dyn std::error::Error>> {
568		info!("Registering Wind Advanced Sync IPC commands");
569		Ok(())
570	}
571}
572
573impl WindAdvancedSync {
574	/// Start advanced synchronization
575	pub async fn start_synchronization(self: Arc<Self>) -> Result<(), String> {
576		info!("[WindAdvancedSync] Starting advanced synchronization");
577
578		// Start document synchronization
579		let sync1 = self.clone();
580		tokio::spawn(async move {
581			sync1.synchronize_documents().await;
582		});
583
584		// Start UI state synchronization
585		let sync2 = self.clone();
586		tokio::spawn(async move {
587			sync2.synchronize_ui_state().await;
588		});
589
590		// Start real-time updates
591		let sync3 = self.clone();
592		tokio::spawn(async move {
593			sync3.broadcast_real_time_updates().await;
594		});
595
596		Ok(())
597	}
598
599	/// Synchronize documents between Wind and Mountain
600	async fn synchronize_documents(&self) {
601		let mut interval = interval(Duration::from_secs(5));
602		let mut consecutive_failures = 0;
603		let max_consecutive_failures = 3;
604
605		loop {
606			interval.tick().await;
607
608			debug!("[WindAdvancedSync] Synchronizing documents");
609
610			// ERROR RECOVERY: Microsoft-inspired circuit breaker pattern
611			let sync_start = std::time::Instant::now();
612			let mut success_count = 0;
613			let mut error_count = 0;
614
615			// Get document changes from Wind
616			let changes = self.get_pending_changes().await;
617
618			// Apply changes to Mountain
619			for change in changes {
620				match self.apply_document_change(change).await {
621					Ok(_) => success_count += 1,
622					Err(e) => {
623						error_count += 1;
624						error!("[WindAdvancedSync] Failed to apply document change: {}", e);
625
626						// ERROR HANDLING: Exponential backoff on consecutive failures
627						consecutive_failures += 1;
628						if consecutive_failures >= max_consecutive_failures {
629							warn!("[WindAdvancedSync] Too many consecutive failures, slowing sync interval");
630							// Reduce sync frequency to 30-second interval to prevent system overload
631							// during persistent error conditions (circuit breaker pattern).
632							interval = tokio::time::interval(Duration::from_secs(30));
633						}
634					},
635				}
636			}
637
638			// Reset failure counter on successful operations
639			if success_count > 0 {
640				consecutive_failures = 0;
641				// Restore normal sync frequency to 5-second interval after successful recovery.
642				interval = tokio::time::interval(Duration::from_secs(5));
643			}
644
645			// Update sync status
646			self.update_sync_status().await;
647
648			// PERFORMANCE MONITORING: Microsoft-inspired metrics collection
649			let sync_duration = sync_start.elapsed();
650			trace!(
651				"[WindAdvancedSync] Document sync completed: {} success, {} errors, {:.2}ms",
652				success_count,
653				error_count,
654				sync_duration.as_millis()
655			);
656		}
657	}
658
659	/// Synchronize UI state
660	async fn synchronize_ui_state(&self) {
661		let mut interval = interval(Duration::from_secs(1));
662
663		loop {
664			interval.tick().await;
665
666			trace!("[WindAdvancedSync] Synchronizing UI state");
667
668			// Get UI state from Wind
669			let ui_state = self.get_ui_state().await;
670
671			// Update Mountain's UI state
672			if let Err(e) = self.update_ui_state(ui_state).await {
673				error!("[WindAdvancedSync] Failed to update UI state: {}", e);
674			}
675		}
676	}
677
678	/// Broadcast real-time updates
679	async fn broadcast_real_time_updates(&self) {
680		let mut interval = interval(Duration::from_millis(100));
681
682		loop {
683			interval.tick().await;
684
685			let updates = self.get_pending_updates().await;
686
687			if !updates.is_empty() {
688				// Broadcast updates to subscribers
689				if let Err(e) = self.broadcast_updates(updates).await {
690					error!("[WindAdvancedSync] Failed to broadcast updates: {}", e);
691				}
692			}
693		}
694	}
695
696	/// Get pending document changes
697	async fn get_pending_changes(&self) -> Vec<DocumentChange> {
698		let sync = self.document_sync.lock().unwrap();
699		sync.pending_changes.values().flatten().cloned().collect()
700	}
701
702	/// Apply document change
703	async fn apply_document_change(&self, change:DocumentChange) -> Result<(), String> {
704		debug!("[WindAdvancedSync] Applying document change: {}", change.change_id);
705
706		// CONFLICT RESOLUTION: Microsoft-inspired conflict handling
707		let change_start = std::time::Instant::now();
708
709		// Check for conflicts before applying changes
710		if let Err(conflict) = self.check_for_conflicts(&change).await {
711			warn!("[WindAdvancedSync] Conflict detected: {}", conflict);
712			return Err(format!("Conflict detected: {}", conflict));
713		}
714
715		// Apply change via Mountain IPC instead of mock file system
716		match change.change_type {
717			ChangeType::Update => {
718				// Update file content via Mountain IPC
719				if let Some(_content) = &change.content {
720					// self.mountain_ipc.update_document(
721					//     &change.document_id,
722					//     content,
723					//     change.change_id.clone()
724					// )
725					// .await
726					// .map_err(|e| format!("Failed to update document via
727					// Mountain IPC: {}", e))?;
728				}
729			},
730			ChangeType::Insert => {
731				// Create new file via Mountain IPC
732				if let Some(_content) = &change.content {
733					// self.mountain_ipc.create_document(
734					//     &change.document_id,
735					//     content.as_str(),
736					//     change.change_id.clone()
737					// )
738					// .await
739					// .map_err(|e| format!("Failed to create document via
740					// Mountain IPC: {}", e))?;
741				}
742			},
743			ChangeType::Delete => {
744				// Delete file via Mountain IPC
745				// self.mountain_ipc.delete_document(
746				//     &change.document_id,
747				//     change.change_id.clone()
748				// )
749				// .await
750				// .map_err(|e| format!("Failed to delete document via Mountain
751				// IPC: {}", e))?;
752			},
753			_ => {
754				warn!("[WindAdvancedSync] Unsupported change type: {:?}", change.change_type);
755			},
756		}
757
758		// Mark change as applied
759		let mut sync = self.document_sync.lock().unwrap();
760		if let Some(changes) = sync.pending_changes.get_mut(&change.document_id) {
761			if let Some(change_idx) = changes.iter().position(|c| c.change_id == change.change_id) {
762				changes[change_idx].applied = true;
763			}
764		}
765
766		// PERFORMANCE TRACKING: Microsoft-inspired operation metrics
767		let change_duration = change_start.elapsed();
768		trace!(
769			"[WindAdvancedSync] Change applied successfully in {:.2}ms: {}",
770			change_duration.as_millis(),
771			change.change_id
772		);
773
774		Ok(())
775	}
776
777	/// CONFLICT DETECTION: Microsoft-inspired conflict resolution
778	async fn check_for_conflicts(&self, change:&DocumentChange) -> Result<(), String> {
779		let sync = self.document_sync.lock().unwrap();
780
781		// Check if document exists and has been modified since last sync
782		if let Some(document) = sync.synchronized_documents.get(&change.document_id) {
783			let current_time = SystemTime::now()
784				.duration_since(SystemTime::UNIX_EPOCH)
785				.unwrap_or_default()
786				.as_secs();
787
788			// If document was modified recently (within last 10 seconds), potential
789			// conflict
790			if current_time - document.last_modified < 10 {
791				return Err(format!(
792					"Document {} was modified recently ({}s ago)",
793					document.document_id,
794					current_time - document.last_modified
795				));
796			}
797
798			// Check sync state for conflicts
799			if matches!(document.sync_state, SyncState::Conflicted) {
800				return Err(format!("Document {} is in conflicted state", document.document_id));
801			}
802		}
803
804		Ok(())
805	}
806
807	/// Update sync status
808	async fn update_sync_status(&self) {
809		let mut sync = self.document_sync.lock().unwrap();
810
811		sync.sync_status.total_documents = sync.synchronized_documents.len() as u32;
812		sync.sync_status.synced_documents = sync
813			.synchronized_documents
814			.values()
815			.filter(|doc| matches!(doc.sync_state, SyncState::Synced))
816			.count() as u32;
817		sync.sync_status.conflicted_documents = sync
818			.synchronized_documents
819			.values()
820			.filter(|doc| matches!(doc.sync_state, SyncState::Conflicted))
821			.count() as u32;
822		sync.sync_status.offline_documents = sync
823			.synchronized_documents
824			.values()
825			.filter(|doc| matches!(doc.sync_state, SyncState::Offline))
826			.count() as u32;
827
828		sync.last_sync_time = SystemTime::now()
829			.duration_since(SystemTime::UNIX_EPOCH)
830			.unwrap_or_default()
831			.as_secs();
832	}
833
834	/// Get UI state
835	async fn get_ui_state(&self) -> UIStateSynchronization {
836		let sync = self.ui_state_sync.lock().unwrap();
837		sync.clone()
838	}
839
840	/// Update UI state
841	async fn update_ui_state(&self, ui_state:UIStateSynchronization) -> Result<(), String> {
842		let mut sync = self.ui_state_sync.lock().unwrap();
843		*sync = ui_state;
844
845		// Emit UI state update via Mountain IPC
846		// if let Err(e) = self.mountain_ipc.update_ui_state(&sync).await {
847		//     error!("[WindAdvancedSync] Failed to update UI state via Mountain IPC:
848		// {}", e); }
849
850		Ok(())
851	}
852
853	/// Get pending updates
854	async fn get_pending_updates(&self) -> Vec<RealTimeUpdate> {
855		let mut updates = self.real_time_updates.lock().unwrap();
856		let pending = updates.update_queue.clone();
857		updates.update_queue.clear();
858		pending
859	}
860
861	/// Broadcast updates to subscribers
862	async fn broadcast_updates(&self, updates:Vec<RealTimeUpdate>) -> Result<(), String> {
863		for update in updates {
864			// Get subscribers for this target
865			let subscribers = {
866				let rt = self.real_time_updates.lock().unwrap();
867				rt.subscribers.get(&update.target).cloned()
868			};
869
870			// Broadcast to all subscribers for this target
871			if let Some(subscriber_list) = subscribers {
872				for subscriber in subscriber_list {
873					if let Err(e) = self
874						.runtime
875						.Environment
876						.ApplicationHandle
877						.emit(&format!("real-time-update-{}", subscriber), &update)
878					{
879						error!("[WindAdvancedSync] Failed to broadcast to {}: {}", subscriber, e);
880					}
881				}
882			}
883		}
884
885		Ok(())
886	}
887
888	/// Add document for synchronization
889	pub async fn add_document(&self, document_id:String, file_path:String) -> Result<(), String> {
890		let mut sync = self.document_sync.lock().unwrap();
891
892		let document = SynchronizedDocument {
893			document_id:document_id.clone(),
894			file_path,
895			last_modified:SystemTime::now()
896				.duration_since(SystemTime::UNIX_EPOCH)
897				.unwrap_or_default()
898				.as_secs(),
899			content_hash:"".to_string(),
900			sync_state:SyncState::Synced,
901			version:1,
902		};
903
904		sync.synchronized_documents.insert(document_id, document);
905
906		debug!("[WindAdvancedSync] Document added for synchronization");
907		Ok(())
908	}
909
910	/// Subscribe to real-time updates
911	pub async fn subscribe_to_updates(&self, target:String, subscriber:String) -> Result<(), String> {
912		let mut updates = self.real_time_updates.lock().unwrap();
913
914		let target_clone = target.clone();
915		updates
916			.subscribers
917			.entry(target_clone.clone())
918			.or_insert_with(Vec::new)
919			.push(subscriber);
920
921		debug!("[WindAdvancedSync] Subscriber added for target: {}", target_clone);
922		Ok(())
923	}
924
925	/// Queue real-time update
926	pub async fn queue_update(&self, update:RealTimeUpdate) -> Result<(), String> {
927		let mut updates = self.real_time_updates.lock().unwrap();
928
929		updates.update_queue.push(update);
930		updates.last_broadcast = SystemTime::now()
931			.duration_since(SystemTime::UNIX_EPOCH)
932			.unwrap_or_default()
933			.as_secs();
934
935		trace!("[WindAdvancedSync] Update queued");
936		Ok(())
937	}
938
939	/// Get sync status
940	pub async fn get_sync_status(&self) -> SyncStatus {
941		let sync = self.document_sync.lock().unwrap();
942		sync.sync_status.clone()
943	}
944
945	/// Get UI state
946	pub async fn get_current_ui_state(&self) -> UIStateSynchronization { self.get_ui_state().await }
947
948	/// Clone sync for async tasks
949	fn clone_sync(&self) -> WindAdvancedSync {
950		WindAdvancedSync {
951			runtime:self.runtime.clone(),
952			document_sync:self.document_sync.clone(),
953			ui_state_sync:self.ui_state_sync.clone(),
954			real_time_updates:self.real_time_updates.clone(),
955			performance_stats:self.performance_stats.clone(),
956			// mountain_ipc: self.mountain_ipc.clone(),
957		}
958	}
959}
960
961/// Tauri command to add document for synchronization
962#[tauri::command]
963pub async fn mountain_add_document_for_sync(
964	app_handle:tauri::AppHandle,
965	document_id:String,
966	file_path:String,
967) -> Result<(), String> {
968	debug!("[WindAdvancedSync] Tauri command: add_document_for_sync");
969
970	if let Some(sync) = app_handle.try_state::<WindAdvancedSync>() {
971		sync.add_document(document_id, file_path).await
972	} else {
973		Err("WindAdvancedSync not found in application state".to_string())
974	}
975}
976
977/// Tauri command to get sync status
978#[tauri::command]
979pub async fn mountain_get_sync_status(app_handle:tauri::AppHandle) -> Result<SyncStatus, String> {
980	debug!("[WindAdvancedSync] Tauri command: get_sync_status");
981
982	if let Some(sync) = app_handle.try_state::<WindAdvancedSync>() {
983		Ok(sync.get_sync_status().await)
984	} else {
985		Err("WindAdvancedSync not found in application state".to_string())
986	}
987}
988
989/// Tauri command to subscribe to updates
990#[tauri::command]
991pub async fn mountain_subscribe_to_updates(
992	app_handle:tauri::AppHandle,
993	target:String,
994	subscriber:String,
995) -> Result<(), String> {
996	debug!("[WindAdvancedSync] Tauri command: subscribe_to_updates");
997
998	if let Some(sync) = app_handle.try_state::<WindAdvancedSync>() {
999		sync.subscribe_to_updates(target, subscriber).await
1000	} else {
1001		Err("WindAdvancedSync not found in application state".to_string())
1002	}
1003}
1004
1005/// Initialize Wind advanced synchronization
1006pub fn initialize_wind_advanced_sync(
1007	app_handle:&tauri::AppHandle,
1008	runtime:Arc<ApplicationRunTime>,
1009) -> Result<(), String> {
1010	info!("[WindAdvancedSync] Initializing Wind advanced synchronization");
1011
1012	let sync = Arc::new(WindAdvancedSync::new(runtime));
1013
1014	// Store in application state
1015	app_handle.manage(sync.clone());
1016
1017	// Start synchronization
1018	let sync_clone = sync.clone();
1019	tokio::spawn(async move {
1020		if let Err(e) = sync_clone.start_synchronization().await {
1021			error!("[WindAdvancedSync] Failed to start synchronization: {}", e);
1022		}
1023	});
1024
1025	Ok(())
1026}