trustformers_mobile/
network_optimization.rs

1//! Network Optimization Features for TrustformeRS Mobile
2//!
3//! This module provides comprehensive network optimization capabilities including
4//! resumable downloads, bandwidth-aware transfers, P2P model sharing, edge server
5//! integration, and offline-first design patterns for mobile ML deployments.
6
7use serde::{Deserialize, Serialize};
8use std::collections::HashMap;
9use std::sync::{Arc, Mutex};
10use trustformers_core::error::{CoreError, Result};
11use trustformers_core::TrustformersError;
12
13/// Network optimization configuration
14#[derive(Debug, Clone, Serialize, Deserialize)]
15pub struct NetworkOptimizationConfig {
16    /// Enable resumable downloads
17    pub enable_resumable_downloads: bool,
18    /// Enable bandwidth-aware downloading
19    pub enable_bandwidth_awareness: bool,
20    /// Enable P2P model sharing
21    pub enable_p2p_sharing: bool,
22    /// Enable edge server integration
23    pub enable_edge_servers: bool,
24    /// Offline-first configuration
25    pub offline_first: OfflineFirstConfig,
26    /// Download optimization settings
27    pub download_optimization: DownloadOptimizationConfig,
28    /// P2P sharing configuration
29    pub p2p_config: P2PConfig,
30    /// Edge server configuration
31    pub edge_config: EdgeServerConfig,
32    /// Network quality monitoring
33    pub quality_monitoring: NetworkQualityConfig,
34}
35
36/// Offline-first design configuration
37#[derive(Debug, Clone, Serialize, Deserialize)]
38pub struct OfflineFirstConfig {
39    /// Enable offline mode
40    pub enable_offline_mode: bool,
41    /// Offline cache size in MB
42    pub offline_cache_size_mb: usize,
43    /// Offline fallback models
44    pub fallback_models: Vec<String>,
45    /// Sync strategy when coming online
46    pub sync_strategy: OfflineSyncStrategy,
47    /// Data retention policy for offline mode
48    pub offline_retention: OfflineRetentionPolicy,
49}
50
51/// Offline synchronization strategies
52#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
53pub enum OfflineSyncStrategy {
54    /// Sync immediately when online
55    Immediate,
56    /// Sync during optimal conditions
57    Opportunistic,
58    /// Sync on user demand
59    Manual,
60    /// Sync in background
61    Background,
62    /// Adaptive based on connection
63    Adaptive,
64}
65
66/// Offline data retention policy
67#[derive(Debug, Clone, Serialize, Deserialize)]
68pub struct OfflineRetentionPolicy {
69    /// Retain models for days
70    pub model_retention_days: usize,
71    /// Retain inference cache for hours
72    pub cache_retention_hours: usize,
73    /// Auto-cleanup when storage low
74    pub auto_cleanup_on_low_storage: bool,
75    /// Minimum storage to maintain (MB)
76    pub min_storage_threshold_mb: usize,
77}
78
79/// Download optimization configuration
80#[derive(Debug, Clone, Serialize, Deserialize)]
81pub struct DownloadOptimizationConfig {
82    /// Chunk size for downloads (KB)
83    pub chunk_size_kb: usize,
84    /// Maximum concurrent downloads
85    pub max_concurrent_downloads: usize,
86    /// Download timeout in seconds
87    pub download_timeout_seconds: f64,
88    /// Retry configuration
89    pub retry_config: DownloadRetryConfig,
90    /// Compression settings
91    pub compression: DownloadCompressionConfig,
92    /// Bandwidth adaptation
93    pub bandwidth_adaptation: BandwidthAdaptationConfig,
94}
95
96/// Download retry configuration
97#[derive(Debug, Clone, Serialize, Deserialize)]
98pub struct DownloadRetryConfig {
99    /// Maximum retry attempts
100    pub max_retries: usize,
101    /// Initial retry delay in milliseconds
102    pub initial_delay_ms: f64,
103    /// Maximum retry delay in milliseconds
104    pub max_delay_ms: f64,
105    /// Backoff multiplier
106    pub backoff_multiplier: f64,
107    /// Jitter factor (0.0-1.0)
108    pub jitter_factor: f64,
109}
110
111/// Download compression configuration
112#[derive(Debug, Clone, Serialize, Deserialize)]
113pub struct DownloadCompressionConfig {
114    /// Enable download compression
115    pub enable_compression: bool,
116    /// Preferred compression algorithms (in order)
117    pub preferred_algorithms: Vec<CompressionAlgorithm>,
118    /// Minimum file size for compression (bytes)
119    pub min_size_for_compression: usize,
120    /// Enable on-the-fly decompression
121    pub enable_streaming_decompression: bool,
122}
123
124/// Compression algorithms for downloads
125#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
126pub enum CompressionAlgorithm {
127    /// GZIP compression
128    Gzip,
129    /// Brotli compression
130    Brotli,
131    /// LZ4 compression
132    LZ4,
133    /// ZSTD compression
134    Zstd,
135    /// No compression
136    None,
137}
138
139/// Bandwidth adaptation configuration
140#[derive(Debug, Clone, Serialize, Deserialize)]
141pub struct BandwidthAdaptationConfig {
142    /// Enable automatic bandwidth detection
143    pub enable_auto_detection: bool,
144    /// Bandwidth monitoring interval (seconds)
145    pub monitoring_interval_seconds: f64,
146    /// Adaptation thresholds
147    pub adaptation_thresholds: BandwidthThresholds,
148    /// Quality adaptation settings
149    pub quality_adaptation: QualityAdaptationConfig,
150}
151
152/// Bandwidth threshold configurations
153#[derive(Debug, Clone, Serialize, Deserialize)]
154pub struct BandwidthThresholds {
155    /// Low bandwidth threshold (Kbps)
156    pub low_bandwidth_kbps: f64,
157    /// Medium bandwidth threshold (Kbps)
158    pub medium_bandwidth_kbps: f64,
159    /// High bandwidth threshold (Kbps)
160    pub high_bandwidth_kbps: f64,
161    /// Ultra-high bandwidth threshold (Kbps)
162    pub ultra_high_bandwidth_kbps: f64,
163}
164
165/// Quality adaptation configuration
166#[derive(Debug, Clone, Serialize, Deserialize)]
167pub struct QualityAdaptationConfig {
168    /// Enable dynamic quality adjustment
169    pub enable_dynamic_quality: bool,
170    /// Quality levels for different bandwidths
171    pub quality_levels: HashMap<BandwidthTier, QualityLevel>,
172    /// Adaptation strategy
173    pub adaptation_strategy: QualityAdaptationStrategy,
174}
175
176/// Bandwidth tiers
177#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
178pub enum BandwidthTier {
179    /// Very low bandwidth
180    VeryLow,
181    /// Low bandwidth
182    Low,
183    /// Medium bandwidth
184    Medium,
185    /// High bandwidth
186    High,
187    /// Ultra-high bandwidth
188    UltraHigh,
189}
190
191/// Quality levels for adaptation
192#[derive(Debug, Clone, Serialize, Deserialize)]
193pub struct QualityLevel {
194    /// Model quantization level
195    pub quantization_level: u8,
196    /// Model compression ratio
197    pub compression_ratio: f64,
198    /// Maximum model size (MB)
199    pub max_model_size_mb: usize,
200    /// Enable model pruning
201    pub enable_pruning: bool,
202}
203
204/// Quality adaptation strategies
205#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
206pub enum QualityAdaptationStrategy {
207    /// Conservative adaptation
208    Conservative,
209    /// Aggressive adaptation
210    Aggressive,
211    /// Balanced adaptation
212    Balanced,
213    /// User-controlled adaptation
214    Manual,
215}
216
217/// P2P sharing configuration
218#[derive(Debug, Clone, Serialize, Deserialize)]
219pub struct P2PConfig {
220    /// Enable P2P discovery
221    pub enable_discovery: bool,
222    /// P2P protocol to use
223    pub protocol: P2PProtocol,
224    /// Maximum peers to connect to
225    pub max_peers: usize,
226    /// Security settings
227    pub security: P2PSecurityConfig,
228    /// Sharing policy
229    pub sharing_policy: P2PSharingPolicy,
230    /// Resource limits
231    pub resource_limits: P2PResourceLimits,
232}
233
234/// P2P protocols
235#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
236pub enum P2PProtocol {
237    /// BitTorrent-like protocol
238    BitTorrent,
239    /// Gossip protocol
240    Gossip,
241    /// DHT-based protocol
242    DHT,
243    /// Hybrid protocol
244    Hybrid,
245}
246
247/// P2P security configuration
248#[derive(Debug, Clone, Serialize, Deserialize)]
249pub struct P2PSecurityConfig {
250    /// Enable encryption
251    pub enable_encryption: bool,
252    /// Enable peer authentication
253    pub enable_peer_authentication: bool,
254    /// Trusted peer whitelist
255    pub trusted_peers: Vec<String>,
256    /// Enable content verification
257    pub enable_content_verification: bool,
258    /// Security level
259    pub security_level: P2PSecurityLevel,
260}
261
262/// P2P security levels
263#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
264pub enum P2PSecurityLevel {
265    /// No security
266    None,
267    /// Basic security
268    Basic,
269    /// Standard security
270    Standard,
271    /// High security
272    High,
273    /// Maximum security
274    Maximum,
275}
276
277/// P2P sharing policy
278#[derive(Debug, Clone, Serialize, Deserialize)]
279pub struct P2PSharingPolicy {
280    /// Models allowed to share
281    pub shareable_models: Vec<String>,
282    /// Maximum upload bandwidth (Kbps)
283    pub max_upload_bandwidth_kbps: f64,
284    /// Sharing time restrictions
285    pub time_restrictions: P2PTimeRestrictions,
286    /// Battery-aware sharing
287    pub battery_aware_sharing: bool,
288    /// Network-aware sharing
289    pub network_aware_sharing: bool,
290}
291
292/// P2P time restrictions
293#[derive(Debug, Clone, Serialize, Deserialize)]
294pub struct P2PTimeRestrictions {
295    /// Enable time-based restrictions
296    pub enable_restrictions: bool,
297    /// Allowed hours (0-23)
298    pub allowed_hours: Vec<usize>,
299    /// Allowed days of week (0-6, Sunday=0)
300    pub allowed_days: Vec<usize>,
301    /// Timezone for restrictions
302    pub timezone: String,
303}
304
305/// P2P resource limits
306#[derive(Debug, Clone, Serialize, Deserialize)]
307pub struct P2PResourceLimits {
308    /// Maximum CPU usage for P2P (%)
309    pub max_cpu_usage_percent: f64,
310    /// Maximum memory usage for P2P (MB)
311    pub max_memory_usage_mb: usize,
312    /// Maximum storage for P2P cache (MB)
313    pub max_storage_mb: usize,
314    /// Maximum connections
315    pub max_connections: usize,
316}
317
318/// Edge server configuration
319#[derive(Debug, Clone, Serialize, Deserialize)]
320pub struct EdgeServerConfig {
321    /// Enable edge server discovery
322    pub enable_discovery: bool,
323    /// Edge server endpoints
324    pub server_endpoints: Vec<EdgeServerEndpoint>,
325    /// Load balancing strategy
326    pub load_balancing: EdgeLoadBalancingStrategy,
327    /// Failover configuration
328    pub failover: EdgeFailoverConfig,
329    /// Caching configuration
330    pub caching: EdgeCachingConfig,
331}
332
333/// Edge server endpoint
334#[derive(Debug, Clone, Serialize, Deserialize)]
335pub struct EdgeServerEndpoint {
336    /// Server URL
337    pub url: String,
338    /// Server priority (1-10)
339    pub priority: u8,
340    /// Geographic region
341    pub region: String,
342    /// Supported capabilities
343    pub capabilities: Vec<String>,
344    /// Health check endpoint
345    pub health_check_url: Option<String>,
346}
347
348/// Edge load balancing strategies
349#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
350pub enum EdgeLoadBalancingStrategy {
351    /// Round robin
352    RoundRobin,
353    /// Lowest latency
354    LowestLatency,
355    /// Geographically closest
356    Geographic,
357    /// Least loaded
358    LeastLoaded,
359    /// Random selection
360    Random,
361    /// Weighted round robin
362    WeightedRoundRobin,
363}
364
365/// Edge failover configuration
366#[derive(Debug, Clone, Serialize, Deserialize)]
367pub struct EdgeFailoverConfig {
368    /// Enable automatic failover
369    pub enable_auto_failover: bool,
370    /// Health check interval (seconds)
371    pub health_check_interval_seconds: f64,
372    /// Failure threshold count
373    pub failure_threshold: usize,
374    /// Recovery check interval (seconds)
375    pub recovery_check_interval_seconds: f64,
376    /// Failover timeout (seconds)
377    pub failover_timeout_seconds: f64,
378}
379
380/// Edge caching configuration
381#[derive(Debug, Clone, Serialize, Deserialize)]
382pub struct EdgeCachingConfig {
383    /// Enable edge caching
384    pub enable_caching: bool,
385    /// Cache TTL in hours
386    pub cache_ttl_hours: f64,
387    /// Maximum cache size (MB)
388    pub max_cache_size_mb: usize,
389    /// Cache eviction strategy
390    pub eviction_strategy: CacheEvictionStrategy,
391}
392
393/// Cache eviction strategies
394#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
395pub enum CacheEvictionStrategy {
396    /// Least Recently Used
397    LRU,
398    /// Least Frequently Used
399    LFU,
400    /// First In, First Out
401    FIFO,
402    /// Time-based expiration
403    TTL,
404    /// Size-based eviction
405    SizeBased,
406}
407
408/// Network quality monitoring configuration
409#[derive(Debug, Clone, Serialize, Deserialize)]
410pub struct NetworkQualityConfig {
411    /// Enable continuous monitoring
412    pub enable_continuous_monitoring: bool,
413    /// Monitoring interval (seconds)
414    pub monitoring_interval_seconds: f64,
415    /// Quality metrics to track
416    pub tracked_metrics: Vec<NetworkMetric>,
417    /// Quality thresholds
418    pub quality_thresholds: NetworkQualityThresholds,
419    /// Adaptive behavior settings
420    pub adaptive_behavior: AdaptiveBehaviorConfig,
421}
422
423/// Network metrics to monitor
424#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
425pub enum NetworkMetric {
426    /// Bandwidth (download)
427    BandwidthDown,
428    /// Bandwidth (upload)
429    BandwidthUp,
430    /// Latency/ping
431    Latency,
432    /// Packet loss
433    PacketLoss,
434    /// Jitter
435    Jitter,
436    /// Connection stability
437    Stability,
438    /// Signal strength
439    SignalStrength,
440}
441
442/// Network quality thresholds
443#[derive(Debug, Clone, Serialize, Deserialize)]
444pub struct NetworkQualityThresholds {
445    /// Excellent quality thresholds
446    pub excellent: QualityThresholds,
447    /// Good quality thresholds
448    pub good: QualityThresholds,
449    /// Fair quality thresholds
450    pub fair: QualityThresholds,
451    /// Poor quality thresholds
452    pub poor: QualityThresholds,
453}
454
455/// Quality threshold values
456#[derive(Debug, Clone, Serialize, Deserialize)]
457pub struct QualityThresholds {
458    /// Minimum bandwidth (Kbps)
459    pub min_bandwidth_kbps: f64,
460    /// Maximum latency (ms)
461    pub max_latency_ms: f64,
462    /// Maximum packet loss (%)
463    pub max_packet_loss_percent: f64,
464    /// Maximum jitter (ms)
465    pub max_jitter_ms: f64,
466}
467
468/// Adaptive behavior configuration
469#[derive(Debug, Clone, Serialize, Deserialize)]
470pub struct AdaptiveBehaviorConfig {
471    /// Enable adaptive downloads
472    pub enable_adaptive_downloads: bool,
473    /// Enable adaptive model selection
474    pub enable_adaptive_model_selection: bool,
475    /// Enable adaptive caching
476    pub enable_adaptive_caching: bool,
477    /// Adaptation responsiveness (0.0-1.0)
478    pub adaptation_responsiveness: f64,
479    /// Stability window (seconds)
480    pub stability_window_seconds: f64,
481}
482
483/// Download request for resumable downloads
484#[derive(Debug, Clone, Serialize, Deserialize)]
485pub struct ResumableDownloadRequest {
486    /// Unique download ID
487    pub download_id: String,
488    /// Source URL
489    pub url: String,
490    /// Destination path
491    pub destination_path: String,
492    /// Expected file size (bytes)
493    pub expected_size: Option<usize>,
494    /// Checksum for verification
495    pub checksum: Option<String>,
496    /// Download priority
497    pub priority: DownloadPriority,
498    /// Constraints
499    pub constraints: DownloadConstraints,
500}
501
502/// Download priority levels
503#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
504pub enum DownloadPriority {
505    /// Low priority
506    Low = 1,
507    /// Normal priority
508    Normal = 2,
509    /// High priority
510    High = 3,
511    /// Critical priority
512    Critical = 4,
513}
514
515/// Download constraints
516#[derive(Debug, Clone, Serialize, Deserialize)]
517pub struct DownloadConstraints {
518    /// Only download on WiFi
519    pub wifi_only: bool,
520    /// Only download when charging
521    pub charging_only: bool,
522    /// Maximum bandwidth usage (Kbps)
523    pub max_bandwidth_kbps: Option<f64>,
524    /// Allowed time windows
525    pub time_windows: Vec<TimeWindow>,
526}
527
528/// Time window for downloads
529#[derive(Debug, Clone, Serialize, Deserialize)]
530pub struct TimeWindow {
531    /// Start hour (0-23)
532    pub start_hour: usize,
533    /// End hour (0-23)
534    pub end_hour: usize,
535    /// Days of week (0-6, Sunday=0)
536    pub days_of_week: Vec<usize>,
537}
538
539/// Download progress information
540#[derive(Debug, Clone, Serialize, Deserialize)]
541pub struct DownloadProgress {
542    /// Download ID
543    pub download_id: String,
544    /// Bytes downloaded
545    pub bytes_downloaded: usize,
546    /// Total bytes
547    pub total_bytes: usize,
548    /// Download speed (Kbps)
549    pub speed_kbps: f64,
550    /// Estimated time remaining (seconds)
551    pub eta_seconds: f64,
552    /// Current status
553    pub status: DownloadStatus,
554    /// Error information (if any)
555    pub error: Option<String>,
556}
557
558/// Download status
559#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
560pub enum DownloadStatus {
561    /// Download pending
562    Pending,
563    /// Download in progress
564    InProgress,
565    /// Download paused
566    Paused,
567    /// Download completed
568    Completed,
569    /// Download failed
570    Failed,
571    /// Download cancelled
572    Cancelled,
573}
574
575/// Network Optimization Manager
576pub struct NetworkOptimizationManager {
577    config: NetworkOptimizationConfig,
578    download_manager: Arc<Mutex<DownloadManager>>,
579    p2p_manager: Arc<Mutex<P2PManager>>,
580    edge_manager: Arc<Mutex<EdgeManager>>,
581    quality_monitor: Arc<Mutex<NetworkQualityMonitor>>,
582    offline_manager: Arc<Mutex<OfflineManager>>,
583}
584
585/// Download manager for resumable downloads
586#[derive(Debug)]
587struct DownloadManager {
588    active_downloads: HashMap<String, ActiveDownload>,
589    download_queue: std::collections::VecDeque<ResumableDownloadRequest>,
590    download_history: HashMap<String, DownloadProgress>,
591    bandwidth_monitor: BandwidthMonitor,
592}
593
594/// Active download tracking
595#[derive(Debug, Clone)]
596struct ActiveDownload {
597    request: ResumableDownloadRequest,
598    progress: DownloadProgress,
599    start_time: std::time::Instant,
600    last_checkpoint: usize,
601    resume_data: Option<Vec<u8>>,
602}
603
604/// Bandwidth monitoring
605#[derive(Debug, Clone)]
606struct BandwidthMonitor {
607    current_bandwidth_kbps: f64,
608    average_bandwidth_kbps: f64,
609    bandwidth_history: Vec<BandwidthSample>,
610    last_measurement: std::time::Instant,
611}
612
613/// Bandwidth measurement sample
614#[derive(Debug, Clone)]
615struct BandwidthSample {
616    timestamp: std::time::Instant,
617    bandwidth_kbps: f64,
618    connection_type: String,
619}
620
621/// P2P manager
622#[derive(Debug)]
623struct P2PManager {
624    peer_connections: HashMap<String, PeerConnection>,
625    shared_models: HashMap<String, SharedModel>,
626    discovery_service: P2PDiscoveryService,
627    security_manager: P2PSecurityManager,
628}
629
630/// Peer connection information
631#[derive(Debug, Clone)]
632struct PeerConnection {
633    peer_id: String,
634    address: String,
635    connection_quality: f64,
636    last_seen: std::time::Instant,
637    shared_models: Vec<String>,
638    trust_score: f64,
639}
640
641/// Shared model information
642#[derive(Debug, Clone)]
643struct SharedModel {
644    model_id: String,
645    model_hash: String,
646    size_bytes: usize,
647    availability_score: f64,
648    peer_sources: Vec<String>,
649}
650
651/// P2P discovery service
652#[derive(Debug)]
653struct P2PDiscoveryService {
654    discovered_peers: HashMap<String, PeerInfo>,
655    discovery_protocol: P2PProtocol,
656    last_discovery: std::time::Instant,
657}
658
659/// Peer information from discovery
660#[derive(Debug, Clone)]
661struct PeerInfo {
662    peer_id: String,
663    address: String,
664    capabilities: Vec<String>,
665    discovery_time: std::time::Instant,
666}
667
668/// P2P security manager
669#[derive(Debug)]
670struct P2PSecurityManager {
671    trusted_peers: HashMap<String, TrustedPeer>,
672    security_level: P2PSecurityLevel,
673    encryption_keys: HashMap<String, Vec<u8>>,
674}
675
676/// Trusted peer information
677#[derive(Debug, Clone)]
678struct TrustedPeer {
679    peer_id: String,
680    public_key: Vec<u8>,
681    trust_level: f64,
682    last_verified: std::time::Instant,
683}
684
685/// Edge server manager
686#[derive(Debug)]
687struct EdgeManager {
688    available_servers: HashMap<String, EdgeServerInfo>,
689    current_server: Option<String>,
690    load_balancer: EdgeLoadBalancer,
691    health_monitor: EdgeHealthMonitor,
692}
693
694/// Edge server information
695#[derive(Debug, Clone)]
696struct EdgeServerInfo {
697    endpoint: EdgeServerEndpoint,
698    health_status: EdgeServerHealth,
699    performance_metrics: EdgePerformanceMetrics,
700    last_health_check: std::time::Instant,
701}
702
703/// Edge server health status
704#[derive(Debug, Clone, Copy, PartialEq, Eq)]
705enum EdgeServerHealth {
706    Healthy,
707    Degraded,
708    Unhealthy,
709    Unknown,
710}
711
712/// Edge server performance metrics
713#[derive(Debug, Clone)]
714struct EdgePerformanceMetrics {
715    average_latency_ms: f64,
716    success_rate: f64,
717    throughput_kbps: f64,
718    load_percentage: f64,
719}
720
721/// Edge load balancer
722#[derive(Debug)]
723struct EdgeLoadBalancer {
724    strategy: EdgeLoadBalancingStrategy,
725    server_weights: HashMap<String, f64>,
726    round_robin_index: usize,
727}
728
729/// Edge health monitor
730#[derive(Debug)]
731struct EdgeHealthMonitor {
732    health_checks: HashMap<String, Vec<HealthCheckResult>>,
733    monitoring_interval: std::time::Duration,
734    last_check: std::time::Instant,
735}
736
737/// Health check result
738#[derive(Debug, Clone)]
739struct HealthCheckResult {
740    timestamp: std::time::Instant,
741    success: bool,
742    latency_ms: f64,
743    error_message: Option<String>,
744}
745
746/// Network quality monitor
747#[derive(Debug)]
748struct NetworkQualityMonitor {
749    current_quality: NetworkQuality,
750    quality_history: Vec<NetworkQualityMeasurement>,
751    active_measurements: HashMap<NetworkMetric, f64>,
752    last_measurement: std::time::Instant,
753}
754
755/// Network quality assessment
756#[derive(Debug, Clone, Copy, PartialEq, Eq, serde::Serialize)]
757enum NetworkQuality {
758    Excellent,
759    Good,
760    Fair,
761    Poor,
762    Offline,
763}
764
765/// Network quality measurement
766#[derive(Debug, Clone)]
767struct NetworkQualityMeasurement {
768    timestamp: std::time::Instant,
769    quality: NetworkQuality,
770    metrics: HashMap<NetworkMetric, f64>,
771    connection_type: String,
772}
773
774/// Offline manager
775#[derive(Debug)]
776struct OfflineManager {
777    offline_cache: HashMap<String, OfflineCacheEntry>,
778    sync_queue: Vec<OfflineSyncItem>,
779    fallback_models: HashMap<String, FallbackModelInfo>,
780    last_online: Option<std::time::Instant>,
781}
782
783/// Offline cache entry
784#[derive(Debug, Clone)]
785struct OfflineCacheEntry {
786    key: String,
787    data: Vec<u8>,
788    timestamp: std::time::Instant,
789    expiry: Option<std::time::Instant>,
790    size_bytes: usize,
791}
792
793/// Offline sync item
794#[derive(Debug, Clone)]
795struct OfflineSyncItem {
796    item_id: String,
797    sync_type: OfflineSyncType,
798    priority: u8,
799    created_at: std::time::Instant,
800    retry_count: usize,
801}
802
803/// Offline sync types
804#[derive(Debug, Clone, Copy, PartialEq, Eq)]
805enum OfflineSyncType {
806    ModelUpdate,
807    CacheSync,
808    MetricsUpload,
809    ConfigSync,
810}
811
812/// Fallback model information
813#[derive(Debug, Clone)]
814struct FallbackModelInfo {
815    model_id: String,
816    model_path: String,
817    capabilities: Vec<String>,
818    last_updated: std::time::Instant,
819}
820
821impl NetworkOptimizationManager {
822    /// Create new network optimization manager
823    pub fn new(config: NetworkOptimizationConfig) -> Result<Self> {
824        config.validate()?;
825
826        let download_manager = Arc::new(Mutex::new(DownloadManager::new(
827            &config.download_optimization,
828        )));
829        let p2p_manager = Arc::new(Mutex::new(P2PManager::new(&config.p2p_config)));
830        let edge_manager = Arc::new(Mutex::new(EdgeManager::new(&config.edge_config)));
831        let quality_monitor = Arc::new(Mutex::new(NetworkQualityMonitor::new(
832            &config.quality_monitoring,
833        )));
834        let offline_manager = Arc::new(Mutex::new(OfflineManager::new(&config.offline_first)));
835
836        Ok(Self {
837            config,
838            download_manager,
839            p2p_manager,
840            edge_manager,
841            quality_monitor,
842            offline_manager,
843        })
844    }
845
846    /// Start resumable download
847    pub async fn start_resumable_download(
848        &self,
849        request: ResumableDownloadRequest,
850    ) -> Result<String> {
851        tracing::info!("Starting resumable download: {}", request.download_id);
852
853        // Check if download is already in progress
854        {
855            let manager = self.download_manager.lock().expect("Operation failed");
856            if manager.active_downloads.contains_key(&request.download_id) {
857                return Err(TrustformersError::runtime_error(
858                    "Download already in progress".into(),
859                )
860                .into());
861            }
862        }
863
864        // Check constraints
865        if !self.check_download_constraints(&request.constraints).await? {
866            return Err(
867                TrustformersError::runtime_error("Download constraints not met".into()).into(),
868            );
869        }
870
871        // Add to download queue
872        {
873            let mut manager = self.download_manager.lock().expect("Operation failed");
874            manager.enqueue_download(request.clone());
875        }
876
877        // Start download processing
878        self.process_download_queue().await?;
879
880        Ok(request.download_id)
881    }
882
883    /// Get download progress
884    pub fn get_download_progress(&self, download_id: &str) -> Result<Option<DownloadProgress>> {
885        let manager = self.download_manager.lock().expect("Operation failed");
886        Ok(manager.get_download_progress(download_id))
887    }
888
889    /// Pause download
890    pub async fn pause_download(&self, download_id: &str) -> Result<bool> {
891        let mut manager = self.download_manager.lock().expect("Operation failed");
892        manager.pause_download(download_id)
893    }
894
895    /// Resume download
896    pub async fn resume_download(&self, download_id: &str) -> Result<bool> {
897        let mut manager = self.download_manager.lock().expect("Operation failed");
898        manager.resume_download(download_id)
899    }
900
901    /// Cancel download
902    pub async fn cancel_download(&self, download_id: &str) -> Result<bool> {
903        let mut manager = self.download_manager.lock().expect("Operation failed");
904        manager.cancel_download(download_id)
905    }
906
907    /// Enable P2P model sharing
908    pub async fn enable_p2p_sharing(&self, model_id: &str) -> Result<()> {
909        if !self.config.enable_p2p_sharing {
910            return Err(TrustformersError::config_error(
911                "P2P sharing not enabled",
912                "enable_p2p_sharing",
913            )
914            .into());
915        }
916
917        let mut p2p_manager = self.p2p_manager.lock().expect("Operation failed");
918        p2p_manager.add_shared_model(model_id)?;
919
920        tracing::info!("Enabled P2P sharing for model: {}", model_id);
921        Ok(())
922    }
923
924    /// Discover P2P peers
925    pub async fn discover_p2p_peers(&self) -> Result<Vec<String>> {
926        if !self.config.enable_p2p_sharing {
927            return Ok(Vec::new());
928        }
929
930        let mut p2p_manager = self.p2p_manager.lock().expect("Operation failed");
931        let peers = p2p_manager.discover_peers().await?;
932
933        Ok(peers)
934    }
935
936    /// Get optimal edge server
937    pub async fn get_optimal_edge_server(&self) -> Result<Option<String>> {
938        if !self.config.enable_edge_servers {
939            return Ok(None);
940        }
941
942        let mut edge_manager = self.edge_manager.lock().expect("Operation failed");
943        let server = edge_manager.select_optimal_server().await?;
944
945        Ok(server)
946    }
947
948    /// Check network quality
949    pub async fn check_network_quality(&self) -> Result<String> {
950        let mut monitor = self.quality_monitor.lock().expect("Operation failed");
951        let quality = monitor.measure_quality().await?;
952
953        let quality_json = serde_json::json!({
954            "quality": quality.quality,
955            "metrics": quality.metrics,
956            "connection_type": quality.connection_type,
957            "timestamp": quality.timestamp.elapsed().as_secs()
958        });
959
960        Ok(quality_json.to_string())
961    }
962
963    /// Enter offline mode
964    pub async fn enter_offline_mode(&self) -> Result<()> {
965        if !self.config.offline_first.enable_offline_mode {
966            return Err(TrustformersError::config_error(
967                "Offline mode not enabled",
968                "enter_offline_mode",
969            )
970            .into());
971        }
972
973        let mut offline_manager = self.offline_manager.lock().expect("Operation failed");
974        offline_manager.enter_offline_mode().await?;
975
976        tracing::info!("Entered offline mode");
977        Ok(())
978    }
979
980    /// Exit offline mode and sync
981    pub async fn exit_offline_mode(&self) -> Result<()> {
982        let mut offline_manager = self.offline_manager.lock().expect("Operation failed");
983        offline_manager.exit_offline_mode().await?;
984
985        // Start synchronization
986        self.sync_offline_data().await?;
987
988        tracing::info!("Exited offline mode and started sync");
989        Ok(())
990    }
991
992    /// Sync offline data
993    pub async fn sync_offline_data(&self) -> Result<()> {
994        let strategy = self.config.offline_first.sync_strategy;
995
996        match strategy {
997            OfflineSyncStrategy::Immediate => self.sync_immediate().await,
998            OfflineSyncStrategy::Opportunistic => self.sync_opportunistic().await,
999            OfflineSyncStrategy::Background => self.sync_background().await,
1000            OfflineSyncStrategy::Adaptive => self.sync_adaptive().await,
1001            OfflineSyncStrategy::Manual => Ok(()), // Manual sync requires explicit trigger
1002        }
1003    }
1004
1005    /// Get network optimization statistics
1006    pub fn get_optimization_statistics(&self) -> Result<String> {
1007        let download_stats = {
1008            let manager = self.download_manager.lock().expect("Operation failed");
1009            manager.get_statistics()
1010        };
1011
1012        let p2p_stats = {
1013            let manager = self.p2p_manager.lock().expect("Operation failed");
1014            manager.get_statistics()
1015        };
1016
1017        let edge_stats = {
1018            let manager = self.edge_manager.lock().expect("Operation failed");
1019            manager.get_statistics()
1020        };
1021
1022        let quality_stats = {
1023            let monitor = self.quality_monitor.lock().expect("Operation failed");
1024            monitor.get_statistics()
1025        };
1026
1027        let stats_json = serde_json::json!({
1028            "download_manager": download_stats,
1029            "p2p_manager": p2p_stats,
1030            "edge_manager": edge_stats,
1031            "quality_monitor": quality_stats
1032        });
1033
1034        Ok(stats_json.to_string())
1035    }
1036
1037    // Private helper methods
1038
1039    async fn check_download_constraints(&self, constraints: &DownloadConstraints) -> Result<bool> {
1040        // Check WiFi constraint
1041        if constraints.wifi_only && !self.is_wifi_connected() {
1042            return Ok(false);
1043        }
1044
1045        // Check charging constraint
1046        if constraints.charging_only && !self.is_device_charging() {
1047            return Ok(false);
1048        }
1049
1050        // Check bandwidth constraint
1051        if let Some(max_bandwidth) = constraints.max_bandwidth_kbps {
1052            let current_bandwidth = self.get_current_bandwidth().await;
1053            if current_bandwidth > max_bandwidth {
1054                return Ok(false);
1055            }
1056        }
1057
1058        // Check time windows
1059        if !constraints.time_windows.is_empty() {
1060            let current_time = self.get_current_time_info();
1061            let in_allowed_window = constraints
1062                .time_windows
1063                .iter()
1064                .any(|window| self.is_time_in_window(&current_time, window));
1065            if !in_allowed_window {
1066                return Ok(false);
1067            }
1068        }
1069
1070        Ok(true)
1071    }
1072
1073    async fn process_download_queue(&self) -> Result<()> {
1074        let mut manager = self.download_manager.lock().expect("Operation failed");
1075        manager.process_queue().await
1076    }
1077
1078    async fn sync_immediate(&self) -> Result<()> {
1079        // Implement immediate sync
1080        Ok(())
1081    }
1082
1083    async fn sync_opportunistic(&self) -> Result<()> {
1084        // Implement opportunistic sync
1085        Ok(())
1086    }
1087
1088    async fn sync_background(&self) -> Result<()> {
1089        // Implement background sync
1090        Ok(())
1091    }
1092
1093    async fn sync_adaptive(&self) -> Result<()> {
1094        // Implement adaptive sync based on network conditions
1095        let quality = {
1096            let monitor = self.quality_monitor.lock().expect("Operation failed");
1097            monitor.current_quality
1098        };
1099
1100        match quality {
1101            NetworkQuality::Excellent | NetworkQuality::Good => self.sync_immediate().await,
1102            NetworkQuality::Fair => self.sync_opportunistic().await,
1103            NetworkQuality::Poor => self.sync_background().await,
1104            NetworkQuality::Offline => Ok(()),
1105        }
1106    }
1107
1108    fn is_wifi_connected(&self) -> bool {
1109        // Platform-specific WiFi detection
1110        true // Placeholder
1111    }
1112
1113    fn is_device_charging(&self) -> bool {
1114        // Platform-specific charging detection
1115        false // Placeholder
1116    }
1117
1118    async fn get_current_bandwidth(&self) -> f64 {
1119        let manager = self.download_manager.lock().expect("Operation failed");
1120        manager.bandwidth_monitor.current_bandwidth_kbps
1121    }
1122
1123    fn get_current_time_info(&self) -> CurrentTimeInfo {
1124        CurrentTimeInfo {
1125            hour: 12,       // Placeholder
1126            day_of_week: 1, // Placeholder
1127        }
1128    }
1129
1130    fn is_time_in_window(&self, time: &CurrentTimeInfo, window: &TimeWindow) -> bool {
1131        // Check if current time is within allowed window
1132        let hour_in_range = if window.start_hour <= window.end_hour {
1133            time.hour >= window.start_hour && time.hour <= window.end_hour
1134        } else {
1135            // Wrap around midnight
1136            time.hour >= window.start_hour || time.hour <= window.end_hour
1137        };
1138
1139        let day_allowed =
1140            window.days_of_week.is_empty() || window.days_of_week.contains(&time.day_of_week);
1141
1142        hour_in_range && day_allowed
1143    }
1144}
1145
1146/// Current time information
1147struct CurrentTimeInfo {
1148    hour: usize,
1149    day_of_week: usize,
1150}
1151
1152// Implementation details for helper structs
1153
1154impl DownloadManager {
1155    fn new(config: &DownloadOptimizationConfig) -> Self {
1156        Self {
1157            active_downloads: HashMap::new(),
1158            download_queue: std::collections::VecDeque::new(),
1159            download_history: HashMap::new(),
1160            bandwidth_monitor: BandwidthMonitor::new(),
1161        }
1162    }
1163
1164    fn enqueue_download(&mut self, request: ResumableDownloadRequest) {
1165        self.download_queue.push_back(request);
1166    }
1167
1168    fn get_download_progress(&self, download_id: &str) -> Option<DownloadProgress> {
1169        self.active_downloads
1170            .get(download_id)
1171            .map(|download| download.progress.clone())
1172            .or_else(|| self.download_history.get(download_id).cloned())
1173    }
1174
1175    fn pause_download(&mut self, download_id: &str) -> Result<bool> {
1176        if let Some(download) = self.active_downloads.get_mut(download_id) {
1177            download.progress.status = DownloadStatus::Paused;
1178            Ok(true)
1179        } else {
1180            Ok(false)
1181        }
1182    }
1183
1184    fn resume_download(&mut self, download_id: &str) -> Result<bool> {
1185        if let Some(download) = self.active_downloads.get_mut(download_id) {
1186            if download.progress.status == DownloadStatus::Paused {
1187                download.progress.status = DownloadStatus::InProgress;
1188                Ok(true)
1189            } else {
1190                Ok(false)
1191            }
1192        } else {
1193            Ok(false)
1194        }
1195    }
1196
1197    fn cancel_download(&mut self, download_id: &str) -> Result<bool> {
1198        if let Some(mut download) = self.active_downloads.remove(download_id) {
1199            download.progress.status = DownloadStatus::Cancelled;
1200            self.download_history.insert(download_id.to_string(), download.progress);
1201            Ok(true)
1202        } else {
1203            Ok(false)
1204        }
1205    }
1206
1207    async fn process_queue(&mut self) -> Result<()> {
1208        // Process download queue
1209        while let Some(request) = self.download_queue.pop_front() {
1210            if self.active_downloads.len() < 3 {
1211                // Max concurrent downloads
1212                self.start_download(request).await?;
1213            } else {
1214                // Put back in queue
1215                self.download_queue.push_front(request);
1216                break;
1217            }
1218        }
1219        Ok(())
1220    }
1221
1222    async fn start_download(&mut self, request: ResumableDownloadRequest) -> Result<()> {
1223        let progress = DownloadProgress {
1224            download_id: request.download_id.clone(),
1225            bytes_downloaded: 0,
1226            total_bytes: request.expected_size.unwrap_or(0),
1227            speed_kbps: 0.0,
1228            eta_seconds: 0.0,
1229            status: DownloadStatus::InProgress,
1230            error: None,
1231        };
1232
1233        let active_download = ActiveDownload {
1234            request: request.clone(),
1235            progress,
1236            start_time: std::time::Instant::now(),
1237            last_checkpoint: 0,
1238            resume_data: None,
1239        };
1240
1241        self.active_downloads.insert(request.download_id.clone(), active_download);
1242        Ok(())
1243    }
1244
1245    fn get_statistics(&self) -> serde_json::Value {
1246        serde_json::json!({
1247            "active_downloads": self.active_downloads.len(),
1248            "queued_downloads": self.download_queue.len(),
1249            "completed_downloads": self.download_history.len(),
1250            "current_bandwidth_kbps": self.bandwidth_monitor.current_bandwidth_kbps
1251        })
1252    }
1253}
1254
1255impl BandwidthMonitor {
1256    fn new() -> Self {
1257        Self {
1258            current_bandwidth_kbps: 0.0,
1259            average_bandwidth_kbps: 0.0,
1260            bandwidth_history: Vec::new(),
1261            last_measurement: std::time::Instant::now(),
1262        }
1263    }
1264}
1265
1266impl P2PManager {
1267    fn new(config: &P2PConfig) -> Self {
1268        Self {
1269            peer_connections: HashMap::new(),
1270            shared_models: HashMap::new(),
1271            discovery_service: P2PDiscoveryService::new(config.protocol),
1272            security_manager: P2PSecurityManager::new(&config.security),
1273        }
1274    }
1275
1276    fn add_shared_model(&mut self, model_id: &str) -> Result<()> {
1277        // Add model to shared models
1278        let shared_model = SharedModel {
1279            model_id: model_id.to_string(),
1280            model_hash: "placeholder_hash".to_string(),
1281            size_bytes: 1024 * 1024, // Placeholder
1282            availability_score: 1.0,
1283            peer_sources: Vec::new(),
1284        };
1285
1286        self.shared_models.insert(model_id.to_string(), shared_model);
1287        Ok(())
1288    }
1289
1290    async fn discover_peers(&mut self) -> Result<Vec<String>> {
1291        self.discovery_service.discover_peers().await
1292    }
1293
1294    fn get_statistics(&self) -> serde_json::Value {
1295        serde_json::json!({
1296            "connected_peers": self.peer_connections.len(),
1297            "shared_models": self.shared_models.len(),
1298            "discovery_protocol": self.discovery_service.discovery_protocol
1299        })
1300    }
1301}
1302
1303impl P2PDiscoveryService {
1304    fn new(protocol: P2PProtocol) -> Self {
1305        Self {
1306            discovered_peers: HashMap::new(),
1307            discovery_protocol: protocol,
1308            last_discovery: std::time::Instant::now(),
1309        }
1310    }
1311
1312    async fn discover_peers(&mut self) -> Result<Vec<String>> {
1313        // Implement peer discovery
1314        Ok(Vec::new())
1315    }
1316}
1317
1318impl P2PSecurityManager {
1319    fn new(config: &P2PSecurityConfig) -> Self {
1320        Self {
1321            trusted_peers: HashMap::new(),
1322            security_level: config.security_level,
1323            encryption_keys: HashMap::new(),
1324        }
1325    }
1326}
1327
1328impl EdgeManager {
1329    fn new(config: &EdgeServerConfig) -> Self {
1330        Self {
1331            available_servers: HashMap::new(),
1332            current_server: None,
1333            load_balancer: EdgeLoadBalancer::new(config.load_balancing),
1334            health_monitor: EdgeHealthMonitor::new(),
1335        }
1336    }
1337
1338    async fn select_optimal_server(&mut self) -> Result<Option<String>> {
1339        self.load_balancer.select_server(&self.available_servers)
1340    }
1341
1342    fn get_statistics(&self) -> serde_json::Value {
1343        serde_json::json!({
1344            "available_servers": self.available_servers.len(),
1345            "current_server": self.current_server,
1346            "load_balancing_strategy": self.load_balancer.strategy
1347        })
1348    }
1349}
1350
1351impl EdgeLoadBalancer {
1352    fn new(strategy: EdgeLoadBalancingStrategy) -> Self {
1353        Self {
1354            strategy,
1355            server_weights: HashMap::new(),
1356            round_robin_index: 0,
1357        }
1358    }
1359
1360    fn select_server(
1361        &mut self,
1362        servers: &HashMap<String, EdgeServerInfo>,
1363    ) -> Result<Option<String>> {
1364        if servers.is_empty() {
1365            return Ok(None);
1366        }
1367
1368        match self.strategy {
1369            EdgeLoadBalancingStrategy::RoundRobin => {
1370                let server_ids: Vec<_> = servers.keys().collect();
1371                if server_ids.is_empty() {
1372                    return Ok(None);
1373                }
1374                let selected = server_ids[self.round_robin_index % server_ids.len()];
1375                self.round_robin_index += 1;
1376                Ok(Some(selected.clone()))
1377            },
1378            EdgeLoadBalancingStrategy::LowestLatency => {
1379                // Select server with lowest latency
1380                let best_server = servers
1381                    .iter()
1382                    .min_by(|(_, a), (_, b)| {
1383                        a.performance_metrics
1384                            .average_latency_ms
1385                            .partial_cmp(&b.performance_metrics.average_latency_ms)
1386                            .unwrap_or(std::cmp::Ordering::Equal)
1387                    })
1388                    .map(|(id, _)| id.clone());
1389                Ok(best_server)
1390            },
1391            _ => {
1392                // Implement other strategies
1393                Ok(servers.keys().next().cloned())
1394            },
1395        }
1396    }
1397}
1398
1399impl EdgeHealthMonitor {
1400    fn new() -> Self {
1401        Self {
1402            health_checks: HashMap::new(),
1403            monitoring_interval: std::time::Duration::from_secs(30),
1404            last_check: std::time::Instant::now(),
1405        }
1406    }
1407}
1408
1409impl NetworkQualityMonitor {
1410    fn new(config: &NetworkQualityConfig) -> Self {
1411        Self {
1412            current_quality: NetworkQuality::Good,
1413            quality_history: Vec::new(),
1414            active_measurements: HashMap::new(),
1415            last_measurement: std::time::Instant::now(),
1416        }
1417    }
1418
1419    async fn measure_quality(&mut self) -> Result<NetworkQualityMeasurement> {
1420        // Implement network quality measurement
1421        let measurement = NetworkQualityMeasurement {
1422            timestamp: std::time::Instant::now(),
1423            quality: NetworkQuality::Good,
1424            metrics: HashMap::new(),
1425            connection_type: "WiFi".to_string(),
1426        };
1427
1428        self.quality_history.push(measurement.clone());
1429        self.current_quality = measurement.quality;
1430
1431        Ok(measurement)
1432    }
1433
1434    fn get_statistics(&self) -> serde_json::Value {
1435        serde_json::json!({
1436            "current_quality": self.current_quality,
1437            "measurement_count": self.quality_history.len(),
1438            "last_measurement_elapsed_ms": self.last_measurement.elapsed().as_millis() as u64
1439        })
1440    }
1441}
1442
1443impl OfflineManager {
1444    fn new(config: &OfflineFirstConfig) -> Self {
1445        Self {
1446            offline_cache: HashMap::new(),
1447            sync_queue: Vec::new(),
1448            fallback_models: HashMap::new(),
1449            last_online: Some(std::time::Instant::now()),
1450        }
1451    }
1452
1453    async fn enter_offline_mode(&mut self) -> Result<()> {
1454        self.last_online = Some(std::time::Instant::now());
1455        // Prepare offline cache and fallback models
1456        Ok(())
1457    }
1458
1459    async fn exit_offline_mode(&mut self) -> Result<()> {
1460        // Prepare for online sync
1461        Ok(())
1462    }
1463}
1464
1465impl Default for NetworkOptimizationConfig {
1466    fn default() -> Self {
1467        Self {
1468            enable_resumable_downloads: true,
1469            enable_bandwidth_awareness: true,
1470            enable_p2p_sharing: false, // Disabled by default for security
1471            enable_edge_servers: true,
1472            offline_first: OfflineFirstConfig {
1473                enable_offline_mode: true,
1474                offline_cache_size_mb: 500,
1475                fallback_models: vec!["lightweight_model".to_string()],
1476                sync_strategy: OfflineSyncStrategy::Adaptive,
1477                offline_retention: OfflineRetentionPolicy {
1478                    model_retention_days: 7,
1479                    cache_retention_hours: 24,
1480                    auto_cleanup_on_low_storage: true,
1481                    min_storage_threshold_mb: 100,
1482                },
1483            },
1484            download_optimization: DownloadOptimizationConfig {
1485                chunk_size_kb: 1024,
1486                max_concurrent_downloads: 3,
1487                download_timeout_seconds: 300.0,
1488                retry_config: DownloadRetryConfig {
1489                    max_retries: 3,
1490                    initial_delay_ms: 1000.0,
1491                    max_delay_ms: 30000.0,
1492                    backoff_multiplier: 2.0,
1493                    jitter_factor: 0.1,
1494                },
1495                compression: DownloadCompressionConfig {
1496                    enable_compression: true,
1497                    preferred_algorithms: vec![
1498                        CompressionAlgorithm::Brotli,
1499                        CompressionAlgorithm::Gzip,
1500                        CompressionAlgorithm::LZ4,
1501                    ],
1502                    min_size_for_compression: 1024,
1503                    enable_streaming_decompression: true,
1504                },
1505                bandwidth_adaptation: BandwidthAdaptationConfig {
1506                    enable_auto_detection: true,
1507                    monitoring_interval_seconds: 10.0,
1508                    adaptation_thresholds: BandwidthThresholds {
1509                        low_bandwidth_kbps: 100.0,
1510                        medium_bandwidth_kbps: 1000.0,
1511                        high_bandwidth_kbps: 10000.0,
1512                        ultra_high_bandwidth_kbps: 100000.0,
1513                    },
1514                    quality_adaptation: QualityAdaptationConfig {
1515                        enable_dynamic_quality: true,
1516                        quality_levels: HashMap::new(),
1517                        adaptation_strategy: QualityAdaptationStrategy::Balanced,
1518                    },
1519                },
1520            },
1521            p2p_config: P2PConfig {
1522                enable_discovery: false,
1523                protocol: P2PProtocol::Hybrid,
1524                max_peers: 10,
1525                security: P2PSecurityConfig {
1526                    enable_encryption: true,
1527                    enable_peer_authentication: true,
1528                    trusted_peers: Vec::new(),
1529                    enable_content_verification: true,
1530                    security_level: P2PSecurityLevel::Standard,
1531                },
1532                sharing_policy: P2PSharingPolicy {
1533                    shareable_models: Vec::new(),
1534                    max_upload_bandwidth_kbps: 1000.0,
1535                    time_restrictions: P2PTimeRestrictions {
1536                        enable_restrictions: false,
1537                        allowed_hours: (0..24).collect(),
1538                        allowed_days: (0..7).collect(),
1539                        timezone: "UTC".to_string(),
1540                    },
1541                    battery_aware_sharing: true,
1542                    network_aware_sharing: true,
1543                },
1544                resource_limits: P2PResourceLimits {
1545                    max_cpu_usage_percent: 20.0,
1546                    max_memory_usage_mb: 100,
1547                    max_storage_mb: 500,
1548                    max_connections: 10,
1549                },
1550            },
1551            edge_config: EdgeServerConfig {
1552                enable_discovery: true,
1553                server_endpoints: Vec::new(),
1554                load_balancing: EdgeLoadBalancingStrategy::LowestLatency,
1555                failover: EdgeFailoverConfig {
1556                    enable_auto_failover: true,
1557                    health_check_interval_seconds: 30.0,
1558                    failure_threshold: 3,
1559                    recovery_check_interval_seconds: 60.0,
1560                    failover_timeout_seconds: 10.0,
1561                },
1562                caching: EdgeCachingConfig {
1563                    enable_caching: true,
1564                    cache_ttl_hours: 24.0,
1565                    max_cache_size_mb: 1000,
1566                    eviction_strategy: CacheEvictionStrategy::LRU,
1567                },
1568            },
1569            quality_monitoring: NetworkQualityConfig {
1570                enable_continuous_monitoring: true,
1571                monitoring_interval_seconds: 30.0,
1572                tracked_metrics: vec![
1573                    NetworkMetric::BandwidthDown,
1574                    NetworkMetric::BandwidthUp,
1575                    NetworkMetric::Latency,
1576                    NetworkMetric::PacketLoss,
1577                ],
1578                quality_thresholds: NetworkQualityThresholds {
1579                    excellent: QualityThresholds {
1580                        min_bandwidth_kbps: 10000.0,
1581                        max_latency_ms: 50.0,
1582                        max_packet_loss_percent: 0.1,
1583                        max_jitter_ms: 10.0,
1584                    },
1585                    good: QualityThresholds {
1586                        min_bandwidth_kbps: 1000.0,
1587                        max_latency_ms: 100.0,
1588                        max_packet_loss_percent: 1.0,
1589                        max_jitter_ms: 25.0,
1590                    },
1591                    fair: QualityThresholds {
1592                        min_bandwidth_kbps: 100.0,
1593                        max_latency_ms: 300.0,
1594                        max_packet_loss_percent: 5.0,
1595                        max_jitter_ms: 50.0,
1596                    },
1597                    poor: QualityThresholds {
1598                        min_bandwidth_kbps: 10.0,
1599                        max_latency_ms: 1000.0,
1600                        max_packet_loss_percent: 10.0,
1601                        max_jitter_ms: 100.0,
1602                    },
1603                },
1604                adaptive_behavior: AdaptiveBehaviorConfig {
1605                    enable_adaptive_downloads: true,
1606                    enable_adaptive_model_selection: true,
1607                    enable_adaptive_caching: true,
1608                    adaptation_responsiveness: 0.5,
1609                    stability_window_seconds: 60.0,
1610                },
1611            },
1612        }
1613    }
1614}
1615
1616impl NetworkOptimizationConfig {
1617    /// Validate configuration
1618    pub fn validate(&self) -> Result<()> {
1619        if self.download_optimization.max_concurrent_downloads == 0 {
1620            return Err(TrustformersError::config_error(
1621                "Max concurrent downloads must be > 0",
1622                "validate",
1623            )
1624            .into());
1625        }
1626
1627        if self.download_optimization.max_concurrent_downloads > 10 {
1628            return Err(TrustformersError::config_error(
1629                "Too many concurrent downloads",
1630                "validate",
1631            )
1632            .into());
1633        }
1634
1635        if self.offline_first.offline_cache_size_mb < 50 {
1636            return Err(TrustformersError::config_error(
1637                "Offline cache size too small",
1638                "validate",
1639            )
1640            .into());
1641        }
1642
1643        Ok(())
1644    }
1645}
1646
1647#[cfg(test)]
1648mod tests {
1649    use super::*;
1650
1651    #[test]
1652    fn test_network_optimization_config_default() {
1653        let config = NetworkOptimizationConfig::default();
1654        assert!(config.enable_resumable_downloads);
1655        assert!(config.enable_bandwidth_awareness);
1656        assert!(!config.enable_p2p_sharing); // Should be disabled by default
1657        assert!(config.enable_edge_servers);
1658    }
1659
1660    #[test]
1661    fn test_network_optimization_config_validation() {
1662        let mut config = NetworkOptimizationConfig::default();
1663        assert!(config.validate().is_ok());
1664
1665        config.download_optimization.max_concurrent_downloads = 0;
1666        assert!(config.validate().is_err());
1667
1668        config.download_optimization.max_concurrent_downloads = 15;
1669        assert!(config.validate().is_err());
1670    }
1671
1672    #[test]
1673    fn test_download_priority_ordering() {
1674        assert!(DownloadPriority::Critical > DownloadPriority::High);
1675        assert!(DownloadPriority::High > DownloadPriority::Normal);
1676        assert!(DownloadPriority::Normal > DownloadPriority::Low);
1677    }
1678
1679    #[tokio::test]
1680    async fn test_network_optimization_manager_creation() {
1681        let config = NetworkOptimizationConfig::default();
1682        let result = NetworkOptimizationManager::new(config);
1683        assert!(result.is_ok());
1684    }
1685
1686    #[test]
1687    fn test_bandwidth_thresholds() {
1688        let thresholds = BandwidthThresholds {
1689            low_bandwidth_kbps: 100.0,
1690            medium_bandwidth_kbps: 1000.0,
1691            high_bandwidth_kbps: 10000.0,
1692            ultra_high_bandwidth_kbps: 100000.0,
1693        };
1694
1695        assert!(thresholds.ultra_high_bandwidth_kbps > thresholds.high_bandwidth_kbps);
1696        assert!(thresholds.high_bandwidth_kbps > thresholds.medium_bandwidth_kbps);
1697        assert!(thresholds.medium_bandwidth_kbps > thresholds.low_bandwidth_kbps);
1698    }
1699}
trustformers_mobile/network_optimization.rs

trustformers_mobile/
network_optimization.rs
