trustformers-mobile 0.1.1

//! Android Auto support for TrustformeRS mobile
//!
//! This module provides Android Auto integration for TrustformeRS, enabling in-car AI inference
//! with specialized optimizations for automotive environments.

use std::collections::HashMap;
use std::sync::{Arc, Mutex};
use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
use serde::{Serialize, Deserialize};
use crate::{MobileConfig, Result, CoreError};

/// Android Auto configuration for TrustformeRS
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AndroidAutoConfig {
    /// Enable Android Auto support
    pub enabled: bool,
    /// Vehicle safety mode configuration
    pub safety_mode: VehicleSafetyMode,
    /// Automotive-specific optimizations
    pub automotive_optimizations: AutomotiveOptimizations,
    /// Voice processing configuration
    pub voice_processing: VoiceProcessingConfig,
    /// Navigation assistance configuration
    pub navigation_assistance: NavigationAssistanceConfig,
    /// Media and entertainment features
    pub media_features: MediaFeaturesConfig,
    /// Privacy and security settings
    pub privacy_settings: AutomotivePrivacySettings,
    /// Performance constraints for automotive
    pub performance_constraints: AutomotivePerformanceConstraints,
}

/// Vehicle safety mode settings
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct VehicleSafetyMode {
    /// Enable driving mode restrictions
    pub enable_driving_restrictions: bool,
    /// Disable non-essential inference during driving
    pub disable_non_essential_inference: bool,
    /// Maximum inference latency while driving (ms)
    pub max_driving_latency_ms: u64,
    /// Enable voice-only interaction while driving
    pub voice_only_while_driving: bool,
    /// Emergency override capabilities
    pub emergency_override: bool,
    /// Distraction mitigation settings
    pub distraction_mitigation: DistractionMitigationConfig,
}

/// Automotive-specific optimizations
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AutomotiveOptimizations {
    /// Optimize for vehicle power systems (12V/24V)
    pub vehicle_power_optimization: bool,
    /// Thermal management for in-car environment
    pub automotive_thermal_management: bool,
    /// Vibration resistance optimizations
    pub vibration_resistance: bool,
    /// Temperature extremes handling (-40°C to +85°C)
    pub extreme_temperature_handling: bool,
    /// Network connectivity optimization (cellular, WiFi)
    pub connectivity_optimization: ConnectivityOptimization,
    /// Integration with vehicle sensors
    pub vehicle_sensor_integration: bool,
}

/// Voice processing configuration for hands-free operation
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct VoiceProcessingConfig {
    /// Enable voice command processing
    pub enabled: bool,
    /// Wake word detection
    pub wake_word_detection: WakeWordConfig,
    /// Speech recognition settings
    pub speech_recognition: SpeechRecognitionConfig,
    /// Text-to-speech configuration
    pub text_to_speech: TextToSpeechConfig,
    /// Noise cancellation for automotive environment
    pub automotive_noise_cancellation: bool,
    /// Multi-zone audio support
    pub multi_zone_audio: bool,
}

/// Navigation assistance features
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NavigationAssistanceConfig {
    /// Enable navigation AI features
    pub enabled: bool,
    /// Real-time traffic analysis
    pub traffic_analysis: bool,
    /// Route optimization
    pub route_optimization: bool,
    /// Hazard detection
    pub hazard_detection: HazardDetectionConfig,
    /// Points of interest recommendations
    pub poi_recommendations: bool,
    /// Integration with mapping services
    pub mapping_integration: MappingIntegration,
}

/// Media and entertainment features
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MediaFeaturesConfig {
    /// Enable media AI features
    pub enabled: bool,
    /// Music recommendation engine
    pub music_recommendations: bool,
    /// Podcast transcription and search
    pub podcast_features: bool,
    /// Content filtering for passengers
    pub passenger_content_filtering: bool,
    /// Multi-user preferences
    pub multi_user_preferences: bool,
    /// Integration with streaming services
    pub streaming_integration: Vec<String>,
}

/// Privacy settings for automotive environment
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AutomotivePrivacySettings {
    /// Data retention policies
    pub data_retention_days: u32,
    /// Location data handling
    pub location_data_handling: LocationDataHandling,
    /// Voice data processing
    pub voice_data_processing: VoiceDataProcessing,
    /// User consent management
    pub consent_management: ConsentManagement,
    /// Data sharing with vehicle manufacturer
    pub vehicle_manufacturer_sharing: bool,
    /// Emergency data access
    pub emergency_data_access: EmergencyDataAccess,
}

/// Performance constraints for automotive systems
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AutomotivePerformanceConstraints {
    /// Maximum CPU usage (%)
    pub max_cpu_usage: f32,
    /// Maximum memory usage (MB)
    pub max_memory_usage: usize,
    /// Maximum inference latency for safety-critical operations (ms)
    pub max_safety_critical_latency: u64,
    /// Maximum power consumption (W)
    pub max_power_consumption: f32,
    /// Minimum availability requirement (%)
    pub min_availability: f32,
    /// Real-time processing requirements
    pub real_time_requirements: RealTimeRequirements,
}

/// Supporting configuration structures

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DistractionMitigationConfig {
    pub eye_tracking_integration: bool,
    pub attention_monitoring: bool,
    pub context_aware_interactions: bool,
    pub simplified_ui_while_driving: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConnectivityOptimization {
    pub cellular_optimization: bool,
    pub wifi_handoff: bool,
    pub offline_capability: bool,
    pub bandwidth_adaptation: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct WakeWordConfig {
    pub enabled: bool,
    pub wake_words: Vec<String>,
    pub sensitivity: f32,
    pub timeout_seconds: u64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SpeechRecognitionConfig {
    pub language: String,
    pub accent_adaptation: bool,
    pub noise_robustness: NoiseRobustnessLevel,
    pub streaming_recognition: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct TextToSpeechConfig {
    pub voice_profile: String,
    pub speaking_rate: f32,
    pub automotive_optimized: bool,
    pub emergency_voice_priority: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct HazardDetectionConfig {
    pub enabled: bool,
    pub detection_types: Vec<HazardType>,
    pub alert_mechanisms: Vec<AlertMechanism>,
    pub integration_with_vehicle_systems: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MappingIntegration {
    pub providers: Vec<String>,
    pub offline_maps: bool,
    pub real_time_updates: bool,
    pub precision_level: MappingPrecision,
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum NoiseRobustnessLevel {
    Low,
    Medium,
    High,
    Automotive, // Specialized for car environment
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum HazardType {
    WeatherConditions,
    RoadObstacles,
    TrafficIncidents,
    ConstructionZones,
    EmergencyVehicles,
    PedestrianCrossings,
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum AlertMechanism {
    Visual,
    Audio,
    Haptic,
    VehicleIntegration, // Through vehicle's warning systems
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum MappingPrecision {
    Standard,   // ~3-5 meter accuracy
    Enhanced,   // ~1-3 meter accuracy
    Precise,    // ~0.3-1 meter accuracy (lane-level)
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LocationDataHandling {
    pub store_location_data: bool,
    pub anonymize_location: bool,
    pub geofencing_privacy: bool,
    pub location_history_retention: u32, // days
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct VoiceDataProcessing {
    pub local_processing_only: bool,
    pub voice_data_encryption: bool,
    pub automatic_deletion: bool,
    pub deletion_after_days: u32,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConsentManagement {
    pub granular_permissions: bool,
    pub consent_renewal_required: bool,
    pub opt_out_mechanisms: Vec<String>,
    pub minor_protection: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EmergencyDataAccess {
    pub enable_emergency_access: bool,
    pub emergency_contacts: Vec<String>,
    pub automatic_emergency_detection: bool,
    pub location_sharing_in_emergency: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RealTimeRequirements {
    pub hard_real_time_tasks: Vec<String>,
    pub soft_real_time_tasks: Vec<String>,
    pub deadline_miss_tolerance: f32,
    pub priority_scheduling: bool,
}

/// Android Auto integration status
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AndroidAutoStatus {
    pub connected: bool,
    pub vehicle_info: Option<VehicleInfo>,
    pub driving_state: DrivingState,
    pub active_features: Vec<String>,
    pub safety_restrictions: Vec<String>,
    pub performance_metrics: AutomotivePerformanceMetrics,
}

/// Vehicle information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct VehicleInfo {
    pub make: String,
    pub model: String,
    pub year: u32,
    pub vin: Option<String>, // Vehicle Identification Number
    pub supported_features: Vec<String>,
    pub head_unit_capabilities: HeadUnitCapabilities,
}

/// Current driving state
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum DrivingState {
    Parked,
    Idle,
    Moving,
    Unknown,
}

/// Head unit capabilities
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct HeadUnitCapabilities {
    pub screen_size: (u32, u32), // width, height in pixels
    pub touch_support: bool,
    pub voice_support: bool,
    pub camera_support: bool,
    pub sensor_support: Vec<String>,
    pub connectivity: Vec<String>, // "bluetooth", "wifi", "cellular"
}

/// Automotive performance metrics
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AutomotivePerformanceMetrics {
    pub inference_latency_ms: f32,
    pub safety_critical_latency_ms: f32,
    pub power_consumption_w: f32,
    pub thermal_state: f32,
    pub network_quality: NetworkQuality,
    pub user_interaction_response_ms: f32,
    pub voice_recognition_accuracy: f32,
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum NetworkQuality {
    Excellent,
    Good,
    Fair,
    Poor,
    Offline,
}

/// Android Auto integration manager
pub struct AndroidAutoIntegration {
    config: AndroidAutoConfig,
    status: Arc<Mutex<AndroidAutoStatus>>,
    vehicle_sensors: Arc<Mutex<HashMap<String, VehicleSensorData>>>,
    voice_processor: Arc<Mutex<Option<VoiceProcessor>>>,
    navigation_assistant: Arc<Mutex<Option<NavigationAssistant>>>,
    safety_monitor: Arc<Mutex<SafetyMonitor>>,
}

/// Vehicle sensor data
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct VehicleSensorData {
    pub sensor_type: String,
    pub value: f32,
    pub unit: String,
    pub timestamp: u64,
    pub reliability: f32,
}

/// Voice processing component
pub struct VoiceProcessor {
    config: VoiceProcessingConfig,
    wake_word_detector: Option<WakeWordDetector>,
    speech_recognizer: Option<SpeechRecognizer>,
    tts_engine: Option<TTSEngine>,
}

/// Navigation assistance component
pub struct NavigationAssistant {
    config: NavigationAssistanceConfig,
    hazard_detector: Option<HazardDetector>,
    route_optimizer: Option<RouteOptimizer>,
    poi_recommender: Option<POIRecommender>,
}

/// Safety monitoring component
pub struct SafetyMonitor {
    driving_state: DrivingState,
    attention_level: f32,
    safety_restrictions: Vec<String>,
    emergency_state: bool,
}

// Component implementations (simplified for demonstration)

pub struct WakeWordDetector {
    sensitivity: f32,
    active_words: Vec<String>,
}

pub struct SpeechRecognizer {
    language: String,
    noise_level: NoiseRobustnessLevel,
}

pub struct TTSEngine {
    voice_profile: String,
    automotive_optimized: bool,
}

pub struct HazardDetector {
    enabled_types: Vec<HazardType>,
    detection_range_m: f32,
}

pub struct RouteOptimizer {
    optimization_criteria: Vec<String>,
    real_time_traffic: bool,
}

pub struct POIRecommender {
    user_preferences: HashMap<String, f32>,
    context_awareness: bool,
}

impl Default for AndroidAutoConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            safety_mode: VehicleSafetyMode::default(),
            automotive_optimizations: AutomotiveOptimizations::default(),
            voice_processing: VoiceProcessingConfig::default(),
            navigation_assistance: NavigationAssistanceConfig::default(),
            media_features: MediaFeaturesConfig::default(),
            privacy_settings: AutomotivePrivacySettings::default(),
            performance_constraints: AutomotivePerformanceConstraints::default(),
        }
    }
}

impl Default for VehicleSafetyMode {
    fn default() -> Self {
        Self {
            enable_driving_restrictions: true,
            disable_non_essential_inference: true,
            max_driving_latency_ms: 100, // 100ms max for safety
            voice_only_while_driving: true,
            emergency_override: true,
            distraction_mitigation: DistractionMitigationConfig {
                eye_tracking_integration: false,
                attention_monitoring: true,
                context_aware_interactions: true,
                simplified_ui_while_driving: true,
            },
        }
    }
}

impl Default for AutomotiveOptimizations {
    fn default() -> Self {
        Self {
            vehicle_power_optimization: true,
            automotive_thermal_management: true,
            vibration_resistance: true,
            extreme_temperature_handling: true,
            connectivity_optimization: ConnectivityOptimization {
                cellular_optimization: true,
                wifi_handoff: true,
                offline_capability: true,
                bandwidth_adaptation: true,
            },
            vehicle_sensor_integration: true,
        }
    }
}

impl Default for VoiceProcessingConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            wake_word_detection: WakeWordConfig {
                enabled: true,
                wake_words: vec!["Hey Assistant".to_string()],
                sensitivity: 0.7,
                timeout_seconds: 5,
            },
            speech_recognition: SpeechRecognitionConfig {
                language: "en-US".to_string(),
                accent_adaptation: true,
                noise_robustness: NoiseRobustnessLevel::Automotive,
                streaming_recognition: true,
            },
            text_to_speech: TextToSpeechConfig {
                voice_profile: "automotive".to_string(),
                speaking_rate: 1.0,
                automotive_optimized: true,
                emergency_voice_priority: true,
            },
            automotive_noise_cancellation: true,
            multi_zone_audio: false,
        }
    }
}

impl Default for NavigationAssistanceConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            traffic_analysis: true,
            route_optimization: true,
            hazard_detection: HazardDetectionConfig {
                enabled: true,
                detection_types: vec![
                    HazardType::WeatherConditions,
                    HazardType::TrafficIncidents,
                    HazardType::ConstructionZones,
                ],
                alert_mechanisms: vec![
                    AlertMechanism::Audio,
                    AlertMechanism::Visual,
                ],
                integration_with_vehicle_systems: true,
            },
            poi_recommendations: true,
            mapping_integration: MappingIntegration {
                providers: vec!["Google Maps".to_string()],
                offline_maps: true,
                real_time_updates: true,
                precision_level: MappingPrecision::Enhanced,
            },
        }
    }
}

impl Default for MediaFeaturesConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            music_recommendations: true,
            podcast_features: true,
            passenger_content_filtering: true,
            multi_user_preferences: true,
            streaming_integration: vec!["Spotify".to_string(), "YouTube Music".to_string()],
        }
    }
}

impl Default for AutomotivePrivacySettings {
    fn default() -> Self {
        Self {
            data_retention_days: 30,
            location_data_handling: LocationDataHandling {
                store_location_data: true,
                anonymize_location: true,
                geofencing_privacy: true,
                location_history_retention: 7, // 7 days
            },
            voice_data_processing: VoiceDataProcessing {
                local_processing_only: true,
                voice_data_encryption: true,
                automatic_deletion: true,
                deletion_after_days: 1, // Delete voice data after 1 day
            },
            consent_management: ConsentManagement {
                granular_permissions: true,
                consent_renewal_required: true,
                opt_out_mechanisms: vec!["voice".to_string(), "settings".to_string()],
                minor_protection: true,
            },
            vehicle_manufacturer_sharing: false,
            emergency_data_access: EmergencyDataAccess {
                enable_emergency_access: true,
                emergency_contacts: vec![],
                automatic_emergency_detection: true,
                location_sharing_in_emergency: true,
            },
        }
    }
}

impl Default for AutomotivePerformanceConstraints {
    fn default() -> Self {
        Self {
            max_cpu_usage: 30.0, // Conservative for automotive
            max_memory_usage: 256, // 256MB max
            max_safety_critical_latency: 50, // 50ms for safety-critical
            max_power_consumption: 5.0, // 5W max
            min_availability: 99.9, // 99.9% uptime required
            real_time_requirements: RealTimeRequirements {
                hard_real_time_tasks: vec!["hazard_detection".to_string(), "emergency_response".to_string()],
                soft_real_time_tasks: vec!["voice_recognition".to_string(), "navigation".to_string()],
                deadline_miss_tolerance: 0.01, // 1% tolerance
                priority_scheduling: true,
            },
        }
    }
}

impl AndroidAutoIntegration {
    /// Create new Android Auto integration
    pub fn new(config: AndroidAutoConfig) -> Result<Self> {
        let status = AndroidAutoStatus {
            connected: false,
            vehicle_info: None,
            driving_state: DrivingState::Unknown,
            active_features: vec![],
            safety_restrictions: vec![],
            performance_metrics: AutomotivePerformanceMetrics {
                inference_latency_ms: 0.0,
                safety_critical_latency_ms: 0.0,
                power_consumption_w: 0.0,
                thermal_state: 0.0,
                network_quality: NetworkQuality::Unknown,
                user_interaction_response_ms: 0.0,
                voice_recognition_accuracy: 0.0,
            },
        };

        Ok(Self {
            config,
            status: Arc::new(Mutex::new(status)),
            vehicle_sensors: Arc::new(Mutex::new(HashMap::new())),
            voice_processor: Arc::new(Mutex::new(None)),
            navigation_assistant: Arc::new(Mutex::new(None)),
            safety_monitor: Arc::new(Mutex::new(SafetyMonitor {
                driving_state: DrivingState::Unknown,
                attention_level: 1.0,
                safety_restrictions: vec![],
                emergency_state: false,
            })),
        })
    }

    /// Connect to Android Auto
    pub fn connect(&self) -> Result<()> {
        if !self.config.enabled {
            return Err(TrustformersError::runtime_error("Android Auto not enabled".into()).into());
        }

        // Simulate connection process
        let mut status = self.status.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire status lock".into())?;

        status.connected = true;
        status.vehicle_info = Some(VehicleInfo {
            make: "Generic".to_string(),
            model: "Test Vehicle".to_string(),
            year: 2024,
            vin: None,
            supported_features: vec![
                "voice_control".to_string(),
                "navigation".to_string(),
                "media".to_string(),
            ],
            head_unit_capabilities: HeadUnitCapabilities {
                screen_size: (1280, 720),
                touch_support: true,
                voice_support: true,
                camera_support: false,
                sensor_support: vec!["gps".to_string(), "accelerometer".to_string()],
                connectivity: vec!["bluetooth".to_string(), "wifi".to_string()],
            },
        });

        // Initialize components
        if self.config.voice_processing.enabled {
            self.initialize_voice_processor()?;
        }

        if self.config.navigation_assistance.enabled {
            self.initialize_navigation_assistant()?;
        }

        Ok(())
    }

    /// Disconnect from Android Auto
    pub fn disconnect(&self) -> Result<()> {
        let mut status = self.status.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire status lock".into())?;

        status.connected = false;
        status.vehicle_info = None;
        status.active_features.clear();

        // Cleanup components
        if let Ok(mut voice) = self.voice_processor.lock() {
            *voice = None;
        }

        if let Ok(mut nav) = self.navigation_assistant.lock() {
            *nav = None;
        }

        Ok(())
    }

    /// Update driving state
    pub fn update_driving_state(&self, state: DrivingState) -> Result<()> {
        let mut safety = self.safety_monitor.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire safety lock".into())?;

        safety.driving_state = state;

        // Apply safety restrictions based on driving state
        safety.safety_restrictions.clear();

        match state {
            DrivingState::Moving => {
                if self.config.safety_mode.enable_driving_restrictions {
                    safety.safety_restrictions.push("visual_interactions_limited".to_string().into());

                    if self.config.safety_mode.disable_non_essential_inference {
                        safety.safety_restrictions.push("non_essential_inference_disabled".to_string());
                    }

                    if self.config.safety_mode.voice_only_while_driving {
                        safety.safety_restrictions.push("voice_only_interaction".to_string());
                    }
                }
            }
            DrivingState::Parked | DrivingState::Idle => {
                // Fewer restrictions when not moving
            }
            DrivingState::Unknown => {
                // Apply conservative restrictions
                safety.safety_restrictions.push("conservative_mode".to_string());
            }
        }

        // Update status
        if let Ok(mut status) = self.status.lock() {
            status.driving_state = state;
            status.safety_restrictions = safety.safety_restrictions.clone();
        }

        Ok(())
    }

    /// Process voice command
    pub fn process_voice_command(&self, audio_data: &[f32]) -> Result<String> {
        if !self.config.voice_processing.enabled {
            return Err(TrustformersError::runtime_error("Voice processing not enabled".into()).into());
        }

        // Check safety restrictions
        let safety = self.safety_monitor.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire safety lock".into())?;

        if safety.driving_state == DrivingState::Moving &&
           !self.config.safety_mode.voice_only_while_driving {
            return Err(TrustformersError::runtime_error("Voice commands restricted while driving".into()).into());
        }

        drop(safety);

        // Process voice command (simplified implementation)
        let voice_processor = self.voice_processor.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire voice processor lock".into())?;

        if let Some(processor) = voice_processor.as_ref() {
            // Simplified voice processing
            let command = self.recognize_speech(audio_data)?;
            Ok(command)
        } else {
            Err(TrustformersError::runtime_error("Voice processor not initialized".into()).into())
        }
    }

    /// Get navigation suggestions
    pub fn get_navigation_suggestions(&self, destination: &str) -> Result<Vec<String>> {
        if !self.config.navigation_assistance.enabled {
            return Err(TrustformersError::runtime_error("Navigation assistance not enabled".into()).into());
        }

        let nav_assistant = self.navigation_assistant.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire navigation lock".into())?;

        if let Some(assistant) = nav_assistant.as_ref() {
            // Simplified navigation suggestions
            Ok(vec![
                format!("Fastest route to {}", destination),
                format!("Scenic route to {}", destination),
                format!("Avoid tolls route to {}", destination),
            ])
        } else {
            Err(TrustformersError::runtime_error("Navigation assistant not initialized".into()).into())
        }
    }

    /// Handle emergency situation
    pub fn handle_emergency(&self, emergency_type: &str) -> Result<()> {
        let mut safety = self.safety_monitor.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire safety lock".into())?;

        safety.emergency_state = true;

        // Emergency overrides safety restrictions
        if self.config.safety_mode.emergency_override {
            safety.safety_restrictions.clear();
            safety.safety_restrictions.push("emergency_mode".to_string().into());
        }

        // Log emergency (in real implementation, would contact emergency services)
        println!("EMERGENCY: {} detected", emergency_type);

        if self.config.privacy_settings.emergency_data_access.enable_emergency_access &&
           self.config.privacy_settings.emergency_data_access.location_sharing_in_emergency {
            println!("Emergency location sharing enabled");
        }

        Ok(())
    }

    /// Get current status
    pub fn get_status(&self) -> Result<AndroidAutoStatus> {
        let status = self.status.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire status lock".into())?;

        Ok(status.clone())
    }

    /// Update vehicle sensor data
    pub fn update_sensor_data(&self, sensor_type: String, value: f32, unit: String) -> Result<()> {
        let mut sensors = self.vehicle_sensors.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire sensors lock".into())?;

        let timestamp = SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .unwrap_or_default()
            .as_secs();

        sensors.insert(sensor_type.clone(), VehicleSensorData {
            sensor_type,
            value,
            unit,
            timestamp,
            reliability: 0.95, // Assume good reliability
        });

        Ok(())
    }

    /// Get performance metrics
    pub fn get_performance_metrics(&self) -> Result<AutomotivePerformanceMetrics> {
        let status = self.status.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire status lock".into())?;

        Ok(status.performance_metrics.clone())
    }

    // Private helper methods

    fn initialize_voice_processor(&self) -> Result<()> {
        let mut voice_processor = self.voice_processor.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire voice processor lock".into())?;

        *voice_processor = Some(VoiceProcessor {
            config: self.config.voice_processing.clone(),
            wake_word_detector: Some(WakeWordDetector {
                sensitivity: self.config.voice_processing.wake_word_detection.sensitivity,
                active_words: self.config.voice_processing.wake_word_detection.wake_words.clone(),
            }),
            speech_recognizer: Some(SpeechRecognizer {
                language: self.config.voice_processing.speech_recognition.language.clone(),
                noise_level: self.config.voice_processing.speech_recognition.noise_robustness,
            }),
            tts_engine: Some(TTSEngine {
                voice_profile: self.config.voice_processing.text_to_speech.voice_profile.clone(),
                automotive_optimized: self.config.voice_processing.text_to_speech.automotive_optimized,
            }),
        });

        Ok(())
    }

    fn initialize_navigation_assistant(&self) -> Result<()> {
        let mut nav_assistant = self.navigation_assistant.lock()
            .map_err(|_| TrustformersError::runtime_error("Failed to acquire navigation lock".into())?;

        *nav_assistant = Some(NavigationAssistant {
            config: self.config.navigation_assistance.clone(),
            hazard_detector: Some(HazardDetector {
                enabled_types: self.config.navigation_assistance.hazard_detection.detection_types.clone(),
                detection_range_m: 1000.0, // 1km detection range
            }),
            route_optimizer: Some(RouteOptimizer {
                optimization_criteria: vec!["time".to_string(), "fuel".to_string()],
                real_time_traffic: self.config.navigation_assistance.traffic_analysis,
            }),
            poi_recommender: Some(POIRecommender {
                user_preferences: HashMap::new(),
                context_awareness: true,
            }),
        });

        Ok(())
    }

    fn recognize_speech(&self, _audio_data: &[f32]) -> Result<String> {
        // Simplified speech recognition
        // In a real implementation, this would use actual speech recognition
        Ok("Navigate to nearest gas station".to_string())
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_android_auto_config_default() {
        let config = AndroidAutoConfig::default();
        assert!(config.enabled);
        assert!(config.safety_mode.enable_driving_restrictions);
        assert!(config.voice_processing.enabled);
        assert!(config.navigation_assistance.enabled);
    }

    #[test]
    fn test_android_auto_integration_creation() {
        let config = AndroidAutoConfig::default();
        let integration = AndroidAutoIntegration::new(config);
        assert!(integration.is_ok());
    }

    #[test]
    fn test_android_auto_connection() {
        let config = AndroidAutoConfig::default();
        let integration = AndroidAutoIntegration::new(config).expect("Operation failed");

        let result = integration.connect();
        assert!(result.is_ok());

        let status = integration.get_status().expect("Operation failed");
        assert!(status.connected);
        assert!(status.vehicle_info.is_some());
    }

    #[test]
    fn test_driving_state_updates() {
        let config = AndroidAutoConfig::default();
        let integration = AndroidAutoIntegration::new(config).expect("Operation failed");

        integration.connect().expect("Operation failed");

        // Test moving state applies restrictions
        integration.update_driving_state(DrivingState::Moving).expect("Operation failed");
        let status = integration.get_status().expect("Operation failed");
        assert_eq!(status.driving_state, DrivingState::Moving);
        assert!(!status.safety_restrictions.is_empty());

        // Test parked state removes restrictions
        integration.update_driving_state(DrivingState::Parked).expect("Operation failed");
        let status = integration.get_status().expect("Operation failed");
        assert_eq!(status.driving_state, DrivingState::Parked);
    }

    #[test]
    fn test_emergency_handling() {
        let config = AndroidAutoConfig::default();
        let integration = AndroidAutoIntegration::new(config).expect("Operation failed");

        integration.connect().expect("Operation failed");

        let result = integration.handle_emergency("collision_detected");
        assert!(result.is_ok());
    }

    #[test]
    fn test_voice_processing_restrictions() {
        let mut config = AndroidAutoConfig::default();
        config.safety_mode.voice_only_while_driving = false;

        let integration = AndroidAutoIntegration::new(config).expect("Operation failed");
        integration.connect().expect("Operation failed");
        integration.update_driving_state(DrivingState::Moving).expect("Operation failed");

        let audio_data = vec![0.0; 1000];
        let result = integration.process_voice_command(&audio_data);
        assert!(result.is_err()); // Should be restricted while driving
    }

    #[test]
    fn test_sensor_data_updates() {
        let config = AndroidAutoConfig::default();
        let integration = AndroidAutoIntegration::new(config).expect("Operation failed");

        let result = integration.update_sensor_data(
            "speed".to_string(),
            65.0,
            "mph".to_string()
        );
        assert!(result.is_ok());
    }
}