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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//! ```text
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//! ```text
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//! ```text
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//! dev_log!("ipc",
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 serde::{Deserialize, Serialize};
283use tokio::time::interval;
284use tauri::{Emitter, Manager};
285
286use crate::{IPC::AdvancedFeatures::PerformanceStats, RunTime::ApplicationRunTime::ApplicationRunTime, dev_log};
287
288// TEMPORARY: MountainIPC module not yet implemented
289// This import is needed for full document synchronization with Mountain
290// backend. TODO: Create MountainIPC module and implement document operations.
291// // use crate::IPC::MountainIPC::MountainIPC;
292
293/// Synchronization status
294#[derive(Clone, Serialize, Deserialize, Debug)]
295pub struct SyncStatus {
296	pub total_documents:u32,
297	pub synced_documents:u32,
298	pub conflicted_documents:u32,
299	pub offline_documents:u32,
300	pub last_sync_duration_ms:u64,
301}
302
303/// Document synchronization state
304#[derive(Clone, Copy, PartialEq, Debug)]
305pub enum SyncState {
306	Modified,
307	Synced,
308	Conflicted,
309	Offline,
310}
311
312/// Change type for document modifications
313#[derive(Clone, Copy, Debug)]
314pub enum ChangeType {
315	Update,
316	Insert,
317	Delete,
318	Move,
319	Other,
320}
321
322/// Single synchronized document
323#[derive(Clone, Debug)]
324pub struct SynchronizedDocument {
325	pub document_id:String,
326	pub file_path:String,
327	pub last_modified:u64,
328	pub content_hash:String,
329	pub sync_state:SyncState,
330	pub version:u32,
331}
332
333/// Document change
334#[derive(Clone, Debug)]
335pub struct DocumentChange {
336	pub change_id:String,
337	pub document_id:String,
338	pub change_type:ChangeType,
339	pub content:Option<String>,
340	pub applied:bool,
341}
342
343/// Document synchronization state
344pub struct DocumentSynchronization {
345	pub synchronized_documents:HashMap<String, SynchronizedDocument>,
346	pub pending_changes:HashMap<String, Vec<DocumentChange>>,
347	pub last_sync_time:u64,
348	pub sync_status:SyncStatus,
349}
350
351/// Real-time update
352#[derive(Clone, Serialize, Deserialize, Debug)]
353pub struct RealTimeUpdate {
354	pub target:String,
355	pub data:String,
356}
357
358/// Real-time updates manager
359pub struct RealTimeUpdateManager {
360	pub Updates:Vec<RealTimeUpdate>,
361	pub Subscribers:HashMap<String, Vec<String>>,
362	pub UpdateQueue:Vec<RealTimeUpdate>,
363	pub LastBroadcast:u64,
364}
365
366/// View state
367#[derive(Clone, Debug)]
368pub struct ViewState {
369	pub zoom_level:f32,
370	pub sidebar_visible:bool,
371	pub panel_visible:bool,
372	pub status_bar_visible:bool,
373}
374
375/// Grid layout
376#[derive(Clone, Debug)]
377pub struct GridLayout {
378	pub rows:u32,
379	pub columns:u32,
380	pub cell_width:u32,
381	pub cell_height:u32,
382}
383
384/// Editor layout state
385#[derive(Clone, Debug)]
386pub struct LayoutState {
387	pub editor_groups:Vec<String>,
388	pub active_group:u32,
389	pub grid_layout:GridLayout,
390}
391
392/// UI state synchronization
393#[derive(Clone, Debug)]
394pub struct UIStateSynchronization {
395	pub active_editor:Option<String>,
396	pub cursor_positions:HashMap<String, (u32, u32)>,
397	pub selection_ranges:HashMap<String, (u32, u32)>,
398	pub view_state:ViewState,
399	pub theme:String,
400	pub layout:LayoutState,
401}
402
403/// Advanced Wind synchronization features
404#[derive(Clone)]
405pub struct WindAdvancedSync {
406	runtime:Arc<ApplicationRunTime>,
407	document_sync:Arc<Mutex<DocumentSynchronization>>,
408	ui_state_sync:Arc<Mutex<UIStateSynchronization>>,
409	real_time_updates:Arc<Mutex<RealTimeUpdateManager>>,
410	performance_stats:Arc<Mutex<PerformanceStats>>,
411	// mountain_ipc: Arc<MountainIPC>, // Module doesn't exist
412}
413
414impl WindAdvancedSync {
415	/// Create a new WindAdvancedSync instance
416	pub fn new(runtime:Arc<ApplicationRunTime>) -> Self {
417		Self {
418			runtime:runtime.clone(),
419			document_sync:Arc::new(Mutex::new(DocumentSynchronization {
420				synchronized_documents:HashMap::new(),
421				pending_changes:HashMap::new(),
422				last_sync_time:0,
423				sync_status:SyncStatus {
424					total_documents:0,
425					synced_documents:0,
426					conflicted_documents:0,
427					offline_documents:0,
428					last_sync_duration_ms:0,
429				},
430			})),
431			ui_state_sync:Arc::new(Mutex::new(UIStateSynchronization {
432				active_editor:None,
433				cursor_positions:HashMap::new(),
434				selection_ranges:HashMap::new(),
435				view_state:ViewState {
436					zoom_level:1.0,
437					sidebar_visible:true,
438					panel_visible:true,
439					status_bar_visible:true,
440				},
441				theme:"default".to_string(),
442				layout:LayoutState {
443					editor_groups:Vec::new(),
444					active_group:0,
445					grid_layout:GridLayout { rows:1, columns:1, cell_width:100, cell_height:100 },
446				},
447			})),
448			real_time_updates:Arc::new(Mutex::new(RealTimeUpdateManager {
449				Updates:Vec::new(),
450				Subscribers:HashMap::new(),
451				UpdateQueue:Vec::new(),
452				LastBroadcast:0,
453			})),
454			performance_stats:Arc::new(Mutex::new(PerformanceStats {
455				total_messages_sent:0,
456				total_messages_received:0,
457				average_processing_time_ms:0.0,
458				peak_message_rate:0,
459				error_count:0,
460				last_update:0,
461				connection_uptime:0,
462			})),
463			// mountain_ipc: Arc::new(MountainIPC::new(runtime)), // Module doesn't exist
464		}
465	}
466
467	/// Initialize the synchronization service
468	pub async fn initialize(&self) -> Result<(), String> {
469		dev_log!("ipc", "Initializing Wind Advanced Sync service");
470
471		// Start background synchronization task
472		self.start_sync_task().await;
473
474		// Start performance monitoring
475		self.start_performance_monitoring().await;
476
477		dev_log!("ipc", "Wind Advanced Sync service initialized successfully");
478		Ok(())
479	}
480
481	/// Start background synchronization task
482	async fn start_sync_task(&self) {
483		let document_sync = self.document_sync.clone();
484		let runtime = self.runtime.clone();
485
486		tokio::spawn(async move {
487			let mut interval = interval(Duration::from_secs(5));
488
489			loop {
490				interval.tick().await;
491
492				// Synchronize documents
493				if let Ok(mut sync) = document_sync.lock() {
494					let modified_docs:Vec<String> = sync
495						.synchronized_documents
496						.iter()
497						.filter(|(_, document)| document.sync_state == SyncState::Modified)
498						.map(|(doc_id, _)| doc_id.clone())
499						.collect();
500
501					if !modified_docs.is_empty() {
502						dev_log!("ipc", "Synchronizing {} documents", modified_docs.len());
503
504						// Simulate synchronization process
505						sync.last_sync_time =
506							SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_millis() as u64;
507
508						// Update sync status
509						sync.sync_status = Self::calculate_sync_status(&sync.synchronized_documents);
510
511						// Emit sync event
512						let _ = runtime
513							.Environment
514							.ApplicationHandle
515							.emit("mountain_sync_status_update", sync.sync_status.clone());
516					}
517				}
518			}
519		});
520	}
521
522	/// Start performance monitoring
523	async fn start_performance_monitoring(&self) {
524		let performance_stats = self.performance_stats.clone();
525		let runtime = self.runtime.clone();
526
527		tokio::spawn(async move {
528			let mut interval = interval(Duration::from_secs(10));
529
530			loop {
531				interval.tick().await;
532
533				if let Ok(mut stats) = performance_stats.lock() {
534					stats.last_update =
535						SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_millis() as u64;
536					stats.connection_uptime += 10;
537
538					// Emit performance update
539					let _ = runtime
540						.Environment
541						.ApplicationHandle
542						.emit("mountain_performance_update", stats.clone());
543				}
544			}
545		});
546	}
547
548	/// Calculate synchronization status
549	fn calculate_sync_status(documents:&HashMap<String, SynchronizedDocument>) -> SyncStatus {
550		let total = documents.len() as u32;
551		let synced = documents.values().filter(|d| d.sync_state == SyncState::Synced).count() as u32;
552		let conflicted = documents.values().filter(|d| d.sync_state == SyncState::Conflicted).count() as u32;
553		let offline = documents.values().filter(|d| d.sync_state == SyncState::Offline).count() as u32;
554
555		SyncStatus {
556			total_documents:total,
557			synced_documents:synced,
558			conflicted_documents:conflicted,
559			offline_documents:offline,
560			last_sync_duration_ms:0,
561		}
562	}
563
564	/// Register IPC commands
565	pub fn register_commands(_app:&mut tauri::App) -> Result<(), Box<dyn std::error::Error>> {
566		dev_log!("ipc", "Registering Wind Advanced Sync IPC commands");
567		Ok(())
568	}
569}
570
571impl WindAdvancedSync {
572	/// Start advanced synchronization
573	pub async fn start_synchronization(self: Arc<Self>) -> Result<(), String> {
574		dev_log!("lifecycle", "Starting advanced synchronization");
575
576		// Start document synchronization
577		let sync1 = self.clone();
578		tokio::spawn(async move {
579			sync1.synchronize_documents().await;
580		});
581
582		// Start UI state synchronization
583		let sync2 = self.clone();
584		tokio::spawn(async move {
585			sync2.synchronize_ui_state().await;
586		});
587
588		// Start real-time updates
589		let sync3 = self.clone();
590		tokio::spawn(async move {
591			sync3.broadcast_real_time_updates().await;
592		});
593
594		Ok(())
595	}
596
597	/// Synchronize documents between Wind and Mountain
598	async fn synchronize_documents(&self) {
599		let mut interval = interval(Duration::from_secs(5));
600		let mut consecutive_failures = 0;
601		let max_consecutive_failures = 3;
602
603		loop {
604			interval.tick().await;
605
606			dev_log!("lifecycle", "Synchronizing documents");
607
608			// ERROR RECOVERY: Microsoft-inspired circuit breaker pattern
609			let sync_start = std::time::Instant::now();
610			let mut success_count = 0;
611			let mut error_count = 0;
612
613			// Get document changes from Wind
614			let changes = self.get_pending_changes().await;
615
616			// Apply changes to Mountain
617			for change in changes {
618				match self.apply_document_change(change).await {
619					Ok(_) => success_count += 1,
620					Err(e) => {
621						error_count += 1;
622						dev_log!("ipc", "error: [WindAdvancedSync] Failed to apply document change: {}", e);
623
624						// ERROR HANDLING: Exponential backoff on consecutive failures
625						consecutive_failures += 1;
626						if consecutive_failures >= max_consecutive_failures {
627							dev_log!("lifecycle", "Too many consecutive failures, slowing sync interval");
628							// Reduce sync frequency to 30-second interval to prevent system overload
629							// during persistent error conditions (circuit breaker pattern).
630							interval = tokio::time::interval(Duration::from_secs(30));
631						}
632					},
633				}
634			}
635
636			// Reset failure counter on successful operations
637			if success_count > 0 {
638				consecutive_failures = 0;
639				// Restore normal sync frequency to 5-second interval after successful recovery.
640				interval = tokio::time::interval(Duration::from_secs(5));
641			}
642
643			// Update sync status
644			self.update_sync_status().await;
645
646			// PERFORMANCE MONITORING: Microsoft-inspired metrics collection
647			let sync_duration = sync_start.elapsed();
648			dev_log!(
649				"ipc",
650				"[WindAdvancedSync] Document sync completed: {} success, {} errors, {:.2}ms",
651				success_count,
652				error_count,
653				sync_duration.as_millis()
654			);
655		}
656	}
657
658	/// Synchronize UI state
659	async fn synchronize_ui_state(&self) {
660		let mut interval = interval(Duration::from_secs(1));
661
662		loop {
663			interval.tick().await;
664
665			dev_log!("ipc", "[WindAdvancedSync] Synchronizing UI state");
666
667			// Get UI state from Wind
668			let ui_state = self.get_ui_state().await;
669
670			// Update Mountain's UI state
671			if let Err(e) = self.update_ui_state(ui_state).await {
672				dev_log!("ipc", "error: [WindAdvancedSync] Failed to update UI state: {}", e);
673			}
674		}
675	}
676
677	/// Broadcast real-time updates
678	async fn broadcast_real_time_updates(&self) {
679		let mut interval = interval(Duration::from_millis(100));
680
681		loop {
682			interval.tick().await;
683
684			let updates = self.get_pending_updates().await;
685
686			if !updates.is_empty() {
687				// Broadcast updates to subscribers
688				if let Err(e) = self.broadcast_updates(updates).await {
689					dev_log!("ipc", "error: [WindAdvancedSync] Failed to broadcast updates: {}", e);
690				}
691			}
692		}
693	}
694
695	/// Get pending document changes
696	async fn get_pending_changes(&self) -> Vec<DocumentChange> {
697		let sync = self.document_sync.lock().unwrap();
698		sync.pending_changes.values().flatten().cloned().collect()
699	}
700
701	/// Apply document change
702	async fn apply_document_change(&self, change:DocumentChange) -> Result<(), String> {
703		dev_log!("lifecycle", "Applying document change: {}", change.change_id);
704
705		// CONFLICT RESOLUTION: Microsoft-inspired conflict handling
706		let change_start = std::time::Instant::now();
707
708		// Check for conflicts before applying changes
709		if let Err(conflict) = self.check_for_conflicts(&change).await {
710			dev_log!("lifecycle", "Conflict detected: {}", conflict);
711			return Err(format!("Conflict detected: {}", conflict));
712		}
713
714		// Apply change via Mountain IPC instead of mock file system
715		match change.change_type {
716			ChangeType::Update => {
717				// Update file content via Mountain IPC
718				if let Some(_content) = &change.content {
719					// self.mountain_ipc.update_document(
720					//     &change.document_id,
721					//     content,
722					//     change.change_id.clone()
723					// )
724					// .await
725					// .map_err(|e| format!("Failed to update document via
726					// Mountain IPC: {}", e))?;
727				}
728			},
729			ChangeType::Insert => {
730				// Create new file via Mountain IPC
731				if let Some(_content) = &change.content {
732					// self.mountain_ipc.create_document(
733					//     &change.document_id,
734					//     content.as_str(),
735					//     change.change_id.clone()
736					// )
737					// .await
738					// .map_err(|e| format!("Failed to create document via
739					// Mountain IPC: {}", e))?;
740				}
741			},
742			ChangeType::Delete => {
743				// Delete file via Mountain IPC
744				// self.mountain_ipc.delete_document(
745				//     &change.document_id,
746				//     change.change_id.clone()
747				// )
748				// .await
749				// .map_err(|e| format!("Failed to delete document via Mountain
750				// IPC: {}", e))?;
751			},
752			_ => {
753				dev_log!("lifecycle", "Unsupported change type: {:?}", change.change_type);
754			},
755		}
756
757		// Mark change as applied
758		let mut sync = self.document_sync.lock().unwrap();
759		if let Some(changes) = sync.pending_changes.get_mut(&change.document_id) {
760			if let Some(change_idx) = changes.iter().position(|c| c.change_id == change.change_id) {
761				changes[change_idx].applied = true;
762			}
763		}
764
765		// PERFORMANCE TRACKING: Microsoft-inspired operation metrics
766		let change_duration = change_start.elapsed();
767		dev_log!(
768			"ipc",
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		//     dev_log!("ipc", "error: [WindAdvancedSync] Failed to update UI state via
848		// Mountain IPC: {}", 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.UpdateQueue.clone();
857		updates.UpdateQueue.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						dev_log!("ipc", "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		dev_log!("lifecycle", "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		dev_log!("lifecycle", "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.UpdateQueue.push(update);
930		updates.LastBroadcast = SystemTime::now()
931			.duration_since(SystemTime::UNIX_EPOCH)
932			.unwrap_or_default()
933			.as_secs();
934
935		dev_log!("ipc", "[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	dev_log!("lifecycle", "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	dev_log!("lifecycle", "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	dev_log!("lifecycle", "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	dev_log!("lifecycle", "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			dev_log!("ipc", "error: [WindAdvancedSync] Failed to start synchronization: {}", e);
1022		}
1023	});
1024
1025	Ok(())
1026}