trustformers-mobile 0.1.1

//! Mobile Crash Reporting and Analysis System
//!
//! This module provides comprehensive crash reporting capabilities for mobile ML applications,
//! including automatic crash detection, system state capture, crash analysis, and recovery
//! recommendations with privacy-aware data collection.

use crate::{
    device_info::{MobileDeviceInfo, ThermalState},
    mobile_performance_profiler::{MobileMetricsSnapshot, PerformanceBottleneck},
    model_debugger::{ModelAnomaly, TensorDebugInfo},
    scirs2_compat::random::legacy,
};
use serde::{Deserialize, Serialize};
use std::collections::{HashMap, VecDeque};
use std::fs;
use std::path::{Path, PathBuf};
use std::sync::{Arc, Mutex, RwLock};
use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
use trustformers_core::errors::{runtime_error, Result};

// For signal handling
extern crate libc;

// Platform-specific crash handling
#[cfg(target_os = "ios")]
use std::ffi::{CStr, CString};
#[cfg(target_os = "android")]
use std::ffi::{CStr, CString};

/// Configuration for crash reporting system
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashReporterConfig {
    /// Enable crash reporting
    pub enabled: bool,
    /// Privacy mode configuration
    pub privacy_config: CrashPrivacyConfig,
    /// Storage configuration
    pub storage_config: CrashStorageConfig,
    /// Analysis configuration
    pub analysis_config: CrashAnalysisConfig,
    /// Reporting configuration
    pub reporting_config: CrashReportingConfig,
    /// Recovery configuration
    pub recovery_config: CrashRecoveryConfig,
    /// Platform-specific settings
    pub platform_config: PlatformCrashConfig,
}

/// Privacy configuration for crash data collection
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashPrivacyConfig {
    /// Enable automatic crash reporting
    pub auto_report: bool,
    /// Collect user consent before reporting
    pub require_consent: bool,
    /// Include user data in reports
    pub include_user_data: bool,
    /// Include system information
    pub include_system_info: bool,
    /// Include stack traces
    pub include_stack_traces: bool,
    /// Include memory dumps
    pub include_memory_dumps: bool,
    /// Anonymize sensitive data
    pub anonymize_data: bool,
    /// Data retention policy
    pub retention_days: u32,
}

/// Storage configuration for crash reports
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashStorageConfig {
    /// Local storage directory
    pub storage_directory: PathBuf,
    /// Maximum crash reports to store locally
    pub max_local_reports: usize,
    /// Maximum storage size (MB)
    pub max_storage_size_mb: usize,
    /// Compress stored reports
    pub compress_reports: bool,
    /// Enable encryption
    pub encrypt_reports: bool,
    /// Encryption key source
    pub encryption_key_source: EncryptionKeySource,
}

/// Analysis configuration for crash reports
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashAnalysisConfig {
    /// Enable automatic crash analysis
    pub auto_analyze: bool,
    /// Enable pattern detection
    pub pattern_detection: bool,
    /// Enable similarity analysis
    pub similarity_analysis: bool,
    /// Enable recovery suggestions
    pub recovery_suggestions: bool,
    /// Analysis timeout (seconds)
    pub analysis_timeout_secs: u64,
    /// Enable ML-based analysis
    pub ml_analysis: bool,
}

/// Reporting configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashReportingConfig {
    /// Enable remote reporting
    pub remote_reporting: bool,
    /// Remote endpoint URL
    pub remote_endpoint: Option<String>,
    /// Authentication configuration
    pub auth_config: Option<ReportingAuthConfig>,
    /// Retry configuration
    pub retry_config: RetryConfig,
    /// Batch reporting
    pub batch_reporting: bool,
    /// Batch size
    pub batch_size: usize,
}

/// Recovery configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashRecoveryConfig {
    /// Enable automatic recovery
    pub auto_recovery: bool,
    /// Recovery strategies
    pub recovery_strategies: Vec<RecoveryStrategy>,
    /// Recovery timeout (seconds)
    pub recovery_timeout_secs: u64,
    /// Enable state restoration
    pub state_restoration: bool,
    /// Safe mode configuration
    pub safe_mode_config: SafeModeConfig,
}

/// Platform-specific crash configuration
#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub struct PlatformCrashConfig {
    /// iOS-specific configuration
    #[cfg(target_os = "ios")]
    pub ios_config: IOSCrashConfig,
    /// Android-specific configuration
    #[cfg(target_os = "android")]
    pub android_config: AndroidCrashConfig,
    /// Signal handling configuration
    pub signal_config: SignalHandlingConfig,
}

/// iOS-specific crash configuration
#[cfg(target_os = "ios")]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct IOSCrashConfig {
    /// Enable Mach exception handling
    pub mach_exceptions: bool,
    /// Enable BSD signal handling
    pub bsd_signals: bool,
    /// Enable C++ exception handling
    pub cpp_exceptions: bool,
    /// Include app store compliance features
    pub app_store_compliance: bool,
    /// Privacy manifest integration
    pub privacy_manifest: bool,
}

/// Android-specific crash configuration
#[cfg(target_os = "android")]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AndroidCrashConfig {
    /// Enable native crash handling
    pub native_crashes: bool,
    /// Enable Java crash handling
    pub java_crashes: bool,
    /// Enable ANR (Application Not Responding) detection
    pub anr_detection: bool,
    /// Include Google Play compliance
    pub play_store_compliance: bool,
    /// Tombstone integration
    pub tombstone_integration: bool,
}

/// Signal handling configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SignalHandlingConfig {
    /// Signals to handle
    pub handled_signals: Vec<i32>,
    /// Stack trace depth
    pub stack_trace_depth: usize,
    /// Signal handler timeout (ms)
    pub handler_timeout_ms: u64,
    /// Enable async-safe handling
    pub async_safe: bool,
}

/// Encryption key source
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum EncryptionKeySource {
    /// Hardware-based key
    Hardware,
    /// Keychain/Keystore
    Keychain,
    /// Generated key
    Generated,
    /// No encryption
    None,
}

/// Authentication configuration for remote reporting
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ReportingAuthConfig {
    /// Authentication type
    pub auth_type: AuthType,
    /// API key
    pub api_key: Option<String>,
    /// Bearer token
    pub bearer_token: Option<String>,
    /// Custom headers
    pub custom_headers: HashMap<String, String>,
}

/// Authentication types
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum AuthType {
    ApiKey,
    BearerToken,
    Custom,
    None,
}

/// Retry configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RetryConfig {
    /// Maximum retry attempts
    pub max_attempts: usize,
    /// Base delay (ms)
    pub base_delay_ms: u64,
    /// Maximum delay (ms)
    pub max_delay_ms: u64,
    /// Exponential backoff multiplier
    pub backoff_multiplier: f64,
    /// Jitter factor
    pub jitter_factor: f64,
}

/// Recovery strategies
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum RecoveryStrategy {
    /// Restart application
    RestartApp,
    /// Reset model state
    ResetModel,
    /// Clear cache
    ClearCache,
    /// Safe mode
    SafeMode,
    /// Reduced functionality
    ReducedFunctionality,
    /// Manual intervention
    ManualIntervention,
}

/// Safe mode configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SafeModeConfig {
    /// Enable safe mode
    pub enabled: bool,
    /// Disable GPU acceleration
    pub disable_gpu: bool,
    /// Reduce memory usage
    pub reduce_memory: bool,
    /// Disable advanced features
    pub disable_advanced_features: bool,
    /// Safe mode timeout (seconds)
    pub timeout_secs: u64,
}

/// Crash report structure
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashReport {
    /// Unique crash report ID
    pub report_id: String,
    /// Timestamp of crash
    pub timestamp: u64,
    /// Crash type
    pub crash_type: CrashType,
    /// Crash severity
    pub severity: CrashSeverity,
    /// System information
    pub system_info: SystemCrashInfo,
    /// Application information
    pub app_info: AppCrashInfo,
    /// Stack trace information
    pub stack_trace: Option<StackTrace>,
    /// Memory dump
    pub memory_dump: Option<MemoryDump>,
    /// Context information
    pub context: CrashContext,
    /// Analysis results
    pub analysis: Option<CrashAnalysis>,
    /// Recovery suggestions
    pub recovery_suggestions: Vec<RecoverySuggestion>,
    /// Privacy compliant data only
    pub is_privacy_compliant: bool,
}

/// Types of crashes
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub enum CrashType {
    /// Segmentation fault
    SegmentationFault,
    /// Memory allocation failure
    OutOfMemory,
    /// Stack overflow
    StackOverflow,
    /// Assertion failure
    AssertionFailure,
    /// Uncaught exception
    UncaughtException,
    /// Signal-based crash
    Signal(i32),
    /// Application hang/ANR
    ApplicationHang,
    /// GPU-related crash
    GPUCrash,
    /// Model-related crash
    ModelCrash,
    /// Unknown crash
    Unknown,
}

/// Crash severity levels
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub enum CrashSeverity {
    Low,
    Medium,
    High,
    Critical,
}

/// System information at crash time
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SystemCrashInfo {
    /// Device information
    pub device_info: MobileDeviceInfo,
    /// Performance metrics
    pub performance_metrics: Option<MobileMetricsSnapshot>,
    /// Memory usage
    pub memory_usage: MemoryUsageInfo,
    /// CPU information
    pub cpu_info: CpuCrashInfo,
    /// GPU information
    pub gpu_info: Option<GpuCrashInfo>,
    /// Thermal state
    pub thermal_state: Option<ThermalState>,
    /// Battery information
    pub battery_info: Option<BatteryCrashInfo>,
    /// Network information
    pub network_info: Option<NetworkCrashInfo>,
}

/// Application information at crash time
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AppCrashInfo {
    /// Application version
    pub app_version: String,
    /// Build number
    pub build_number: String,
    /// Framework version
    pub framework_version: String,
    /// Application state
    pub app_state: AppState,
    /// Foreground/background status
    pub foreground_status: ForegroundStatus,
    /// Session duration
    pub session_duration: Duration,
    /// Model information
    pub model_info: Option<ModelCrashInfo>,
    /// Recent operations
    pub recent_operations: Vec<RecentOperation>,
}

/// Stack trace information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StackTrace {
    /// Thread that crashed
    pub crashed_thread: ThreadInfo,
    /// All threads
    pub all_threads: Vec<ThreadInfo>,
    /// Exception information
    pub exception_info: Option<ExceptionInfo>,
    /// Signal information
    pub signal_info: Option<SignalInfo>,
    /// Call stack frames
    pub frames: Vec<StackFrame>,
}

/// Memory dump information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MemoryDump {
    /// Memory regions
    pub memory_regions: Vec<MemoryRegion>,
    /// Heap information
    pub heap_info: HeapInfo,
    /// Stack information
    pub stack_info: StackInfo,
    /// Register values
    pub registers: HashMap<String, u64>,
    /// Binary data (base64 encoded)
    pub binary_data: Option<String>,
}

/// Crash context information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashContext {
    /// Current operation
    pub current_operation: Option<String>,
    /// User actions leading to crash
    pub user_actions: Vec<UserAction>,
    /// System events
    pub system_events: Vec<SystemEvent>,
    /// Model anomalies detected
    pub model_anomalies: Vec<ModelAnomaly>,
    /// Performance bottlenecks
    pub performance_bottlenecks: Vec<PerformanceBottleneck>,
    /// Error logs
    pub error_logs: Vec<ErrorLogEntry>,
}

/// Crash analysis results
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashAnalysis {
    /// Root cause analysis
    pub root_cause: Option<String>,
    /// Contributing factors
    pub contributing_factors: Vec<String>,
    /// Similarity to known crashes
    pub similar_crashes: Vec<SimilarCrash>,
    /// Pattern analysis
    pub patterns: Vec<CrashPattern>,
    /// Risk assessment
    pub risk_assessment: RiskAssessment,
    /// Analysis confidence
    pub confidence_score: f32,
    /// Analysis timestamp
    pub analysis_timestamp: u64,
}

/// Recovery suggestion
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RecoverySuggestion {
    /// Suggestion type
    pub suggestion_type: RecoveryStrategy,
    /// Description
    pub description: String,
    /// Implementation steps
    pub steps: Vec<String>,
    /// Success probability
    pub success_probability: f32,
    /// Risk level
    pub risk_level: RiskLevel,
    /// Estimated impact
    pub impact: RecoveryImpact,
}

/// Memory usage information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MemoryUsageInfo {
    /// Total memory
    pub total_mb: f32,
    /// Used memory
    pub used_mb: f32,
    /// Available memory
    pub available_mb: f32,
    /// Heap usage
    pub heap_mb: f32,
    /// Stack usage
    pub stack_mb: f32,
    /// GPU memory
    pub gpu_mb: Option<f32>,
}

/// CPU information at crash time
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CpuCrashInfo {
    /// CPU usage percentage
    pub usage_percent: f32,
    /// CPU frequency
    pub frequency_mhz: u32,
    /// CPU temperature
    pub temperature_c: Option<f32>,
    /// Throttling status
    pub throttling: bool,
    /// Active cores
    pub active_cores: usize,
}

/// GPU information at crash time
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct GpuCrashInfo {
    /// GPU usage percentage
    pub usage_percent: f32,
    /// GPU memory usage
    pub memory_usage_mb: f32,
    /// GPU temperature
    pub temperature_c: Option<f32>,
    /// GPU frequency
    pub frequency_mhz: Option<u32>,
    /// GPU vendor
    pub vendor: String,
    /// GPU model
    pub model: String,
}

/// Battery information at crash time
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BatteryCrashInfo {
    /// Battery level (0-100)
    pub level_percent: f32,
    /// Charging status
    pub charging: bool,
    /// Battery temperature
    pub temperature_c: Option<f32>,
    /// Power usage
    pub power_usage_mw: Option<f32>,
}

/// Network information at crash time
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NetworkCrashInfo {
    /// Connection type
    pub connection_type: NetworkConnectionType,
    /// Network strength
    pub signal_strength: Option<f32>,
    /// Bandwidth
    pub bandwidth_mbps: Option<f32>,
    /// Latency
    pub latency_ms: Option<f32>,
}

/// Application state
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum AppState {
    Launching,
    Active,
    Background,
    Suspended,
    Terminating,
    Unknown,
}

/// Foreground status
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum ForegroundStatus {
    Foreground,
    Background,
    Unknown,
}

/// Model information at crash time
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ModelCrashInfo {
    /// Model ID
    pub model_id: String,
    /// Model type
    pub model_type: String,
    /// Current operation
    pub current_operation: Option<String>,
    /// Input tensors
    pub input_tensors: Vec<TensorDebugInfo>,
    /// Performance metrics
    pub performance_metrics: Option<ModelPerformanceMetrics>,
}

/// Recent operation information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RecentOperation {
    /// Operation name
    pub operation: String,
    /// Timestamp
    pub timestamp: u64,
    /// Duration
    pub duration: Duration,
    /// Success status
    pub success: bool,
    /// Error message
    pub error: Option<String>,
}

/// Thread information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ThreadInfo {
    /// Thread ID
    pub thread_id: u64,
    /// Thread name
    pub thread_name: Option<String>,
    /// Thread state
    pub thread_state: ThreadState,
    /// Stack frames
    pub stack_frames: Vec<StackFrame>,
    /// Register values
    pub registers: HashMap<String, u64>,
}

/// Exception information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ExceptionInfo {
    /// Exception type
    pub exception_type: String,
    /// Exception message
    pub message: String,
    /// Exception code
    pub code: Option<i32>,
    /// Additional info
    pub additional_info: HashMap<String, String>,
}

/// Signal information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SignalInfo {
    /// Signal number
    pub signal: i32,
    /// Signal name
    pub signal_name: String,
    /// Signal code
    pub signal_code: Option<i32>,
    /// Fault address
    pub fault_address: Option<u64>,
}

/// Stack frame information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StackFrame {
    /// Frame index
    pub frame_index: usize,
    /// Instruction pointer
    pub instruction_pointer: u64,
    /// Function name
    pub function_name: Option<String>,
    /// File name
    pub file_name: Option<String>,
    /// Line number
    pub line_number: Option<u32>,
    /// Module name
    pub module_name: Option<String>,
    /// Symbol offset
    pub symbol_offset: Option<u64>,
}

/// Memory region information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MemoryRegion {
    /// Start address
    pub start_address: u64,
    /// End address
    pub end_address: u64,
    /// Size in bytes
    pub size: usize,
    /// Region type
    pub region_type: MemoryRegionType,
    /// Permissions
    pub permissions: MemoryPermissions,
    /// Protection flags
    pub protection: u32,
}

/// Heap information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct HeapInfo {
    /// Total heap size
    pub total_size: usize,
    /// Used heap size
    pub used_size: usize,
    /// Free heap size
    pub free_size: usize,
    /// Largest free block
    pub largest_free_block: usize,
    /// Fragmentation ratio
    pub fragmentation_ratio: f32,
}

/// Stack information
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StackInfo {
    /// Stack base address
    pub base_address: u64,
    /// Stack size
    pub size: usize,
    /// Stack usage
    pub usage: usize,
    /// Stack overflow detected
    pub overflow_detected: bool,
}

/// User action
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct UserAction {
    /// Action type
    pub action_type: String,
    /// Timestamp
    pub timestamp: u64,
    /// Action details
    pub details: HashMap<String, String>,
}

/// System event
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SystemEvent {
    /// Event type
    pub event_type: String,
    /// Timestamp
    pub timestamp: u64,
    /// Event data
    pub data: HashMap<String, String>,
}

/// Error log entry
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ErrorLogEntry {
    /// Log level
    pub level: LogLevel,
    /// Log message
    pub message: String,
    /// Timestamp
    pub timestamp: u64,
    /// Source file
    pub source: Option<String>,
    /// Line number
    pub line: Option<u32>,
}

/// Similar crash
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SimilarCrash {
    /// Crash report ID
    pub report_id: String,
    /// Similarity score (0-1)
    pub similarity_score: f32,
    /// Matching patterns
    pub matching_patterns: Vec<String>,
    /// Resolution status
    pub resolution_status: ResolutionStatus,
}

/// Crash pattern
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashPattern {
    /// Pattern type
    pub pattern_type: PatternType,
    /// Pattern description
    pub description: String,
    /// Frequency
    pub frequency: usize,
    /// Confidence
    pub confidence: f32,
}

/// Risk assessment
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RiskAssessment {
    /// Overall risk level
    pub risk_level: RiskLevel,
    /// Likelihood of recurrence
    pub recurrence_likelihood: f32,
    /// Impact assessment
    pub impact_assessment: ImpactAssessment,
    /// Mitigation urgency
    pub mitigation_urgency: UrgencyLevel,
}

/// Recovery impact
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RecoveryImpact {
    /// User experience impact
    pub user_experience: ImpactLevel,
    /// Performance impact
    pub performance: ImpactLevel,
    /// Data loss risk
    pub data_loss_risk: RiskLevel,
    /// Recovery time estimate
    pub recovery_time_estimate: Duration,
}

/// Model performance metrics
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ModelPerformanceMetrics {
    /// Inference time
    pub inference_time: Duration,
    /// Memory usage
    pub memory_usage: usize,
    /// GPU utilization
    pub gpu_utilization: Option<f32>,
    /// Throughput
    pub throughput: f32,
}

/// Thread states
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum ThreadState {
    Running,
    Blocked,
    Waiting,
    Terminated,
    Unknown,
}

/// Memory region types
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum MemoryRegionType {
    Code,
    Data,
    Heap,
    Stack,
    Shared,
    Unknown,
}

/// Memory permissions
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MemoryPermissions {
    pub read: bool,
    pub write: bool,
    pub execute: bool,
}

/// Network connection types
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub enum NetworkConnectionType {
    WiFi,
    Cellular,
    Ethernet,
    Bluetooth,
    None,
    Unknown,
}

/// Log levels
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum LogLevel {
    Error,
    Warning,
    Info,
    Debug,
    Trace,
}

/// Resolution status
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum ResolutionStatus {
    Unresolved,
    InProgress,
    Resolved,
    WontFix,
}

/// Pattern types
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum PatternType {
    MemoryLeak,
    StackOverflow,
    DeadLock,
    RaceCondition,
    ResourceExhaustion,
    InvalidState,
    ConfigurationError,
    Unknown,
}

/// Risk levels
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
pub enum RiskLevel {
    Low,
    Medium,
    High,
    Critical,
}

/// Impact assessment
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ImpactAssessment {
    /// User impact
    pub user_impact: ImpactLevel,
    /// Business impact
    pub business_impact: ImpactLevel,
    /// Technical impact
    pub technical_impact: ImpactLevel,
    /// Security impact
    pub security_impact: ImpactLevel,
}

/// Impact levels
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum ImpactLevel {
    Minimal,
    Low,
    Medium,
    High,
    Severe,
}

/// Urgency levels
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum UrgencyLevel {
    Low,
    Medium,
    High,
    Critical,
    Emergency,
}

/// Main crash reporter
pub struct MobileCrashReporter {
    config: CrashReporterConfig,
    crash_history: Arc<RwLock<VecDeque<CrashReport>>>,
    analysis_engine: Arc<Mutex<CrashAnalysisEngine>>,
    storage_manager: Arc<Mutex<CrashStorageManager>>,
    recovery_manager: Arc<Mutex<CrashRecoveryManager>>,
    signal_handler: Option<SignalHandler>,
    is_initialized: Arc<Mutex<bool>>,
}

/// Crash analysis engine
struct CrashAnalysisEngine {
    pattern_database: HashMap<String, CrashPattern>,
    similarity_threshold: f32,
    analysis_cache: HashMap<String, CrashAnalysis>,
    ml_analyzer: Option<MLCrashAnalyzer>,
}

/// Storage manager for crash reports
struct CrashStorageManager {
    storage_path: PathBuf,
    encryption_enabled: bool,
    compression_enabled: bool,
    max_reports: usize,
    current_size: usize,
    max_size: usize,
}

/// Recovery manager
struct CrashRecoveryManager {
    recovery_strategies: Vec<RecoveryStrategy>,
    safe_mode_active: bool,
    recovery_history: VecDeque<RecoveryAttempt>,
    auto_recovery_enabled: bool,
}

/// Signal handler
struct SignalHandler {
    handled_signals: Vec<i32>,
    crash_reporter: Arc<Mutex<Option<Arc<MobileCrashReporter>>>>,
}

/// ML-based crash analyzer
struct MLCrashAnalyzer {
    model_path: PathBuf,
    confidence_threshold: f32,
    analysis_enabled: bool,
}

/// Recovery attempt
#[derive(Debug, Clone, Serialize, Deserialize)]
struct RecoveryAttempt {
    strategy: RecoveryStrategy,
    timestamp: u64,
    success: bool,
    duration: Duration,
    error: Option<String>,
}

impl Default for CrashReporterConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            privacy_config: CrashPrivacyConfig::default(),
            storage_config: CrashStorageConfig::default(),
            analysis_config: CrashAnalysisConfig::default(),
            reporting_config: CrashReportingConfig::default(),
            recovery_config: CrashRecoveryConfig::default(),
            platform_config: PlatformCrashConfig::default(),
        }
    }
}

impl Default for CrashPrivacyConfig {
    fn default() -> Self {
        Self {
            auto_report: false, // Require explicit consent
            require_consent: true,
            include_user_data: false,
            include_system_info: true,
            include_stack_traces: true,
            include_memory_dumps: false, // Privacy-sensitive
            anonymize_data: true,
            retention_days: 30,
        }
    }
}

impl Default for CrashStorageConfig {
    fn default() -> Self {
        Self {
            storage_directory: PathBuf::from("crash_reports"),
            max_local_reports: 100,
            max_storage_size_mb: 50,
            compress_reports: true,
            encrypt_reports: true,
            encryption_key_source: EncryptionKeySource::Keychain,
        }
    }
}

impl Default for CrashAnalysisConfig {
    fn default() -> Self {
        Self {
            auto_analyze: true,
            pattern_detection: true,
            similarity_analysis: true,
            recovery_suggestions: true,
            analysis_timeout_secs: 30,
            ml_analysis: false, // Disabled by default for privacy
        }
    }
}

impl Default for CrashReportingConfig {
    fn default() -> Self {
        Self {
            remote_reporting: false, // Disabled by default
            remote_endpoint: None,
            auth_config: None,
            retry_config: RetryConfig::default(),
            batch_reporting: true,
            batch_size: 10,
        }
    }
}

impl Default for CrashRecoveryConfig {
    fn default() -> Self {
        Self {
            auto_recovery: true,
            recovery_strategies: vec![
                RecoveryStrategy::ClearCache,
                RecoveryStrategy::ResetModel,
                RecoveryStrategy::SafeMode,
            ],
            recovery_timeout_secs: 60,
            state_restoration: true,
            safe_mode_config: SafeModeConfig::default(),
        }
    }
}

#[cfg(target_os = "ios")]
impl Default for IOSCrashConfig {
    fn default() -> Self {
        Self {
            mach_exceptions: true,
            bsd_signals: true,
            cpp_exceptions: true,
            app_store_compliance: true,
            privacy_manifest: true,
        }
    }
}

#[cfg(target_os = "android")]
impl Default for AndroidCrashConfig {
    fn default() -> Self {
        Self {
            native_crashes: true,
            java_crashes: true,
            anr_detection: true,
            play_store_compliance: true,
            tombstone_integration: true,
        }
    }
}

impl Default for SignalHandlingConfig {
    fn default() -> Self {
        Self {
            handled_signals: vec![
                libc::SIGSEGV, // Segmentation fault
                libc::SIGABRT, // Abort
                libc::SIGBUS,  // Bus error
                libc::SIGFPE,  // Floating point exception
                libc::SIGILL,  // Illegal instruction
                libc::SIGPIPE, // Broken pipe
            ],
            stack_trace_depth: 50,
            handler_timeout_ms: 5000,
            async_safe: true,
        }
    }
}

impl Default for RetryConfig {
    fn default() -> Self {
        Self {
            max_attempts: 3,
            base_delay_ms: 1000,
            max_delay_ms: 30000,
            backoff_multiplier: 2.0,
            jitter_factor: 0.1,
        }
    }
}

impl Default for SafeModeConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            disable_gpu: true,
            reduce_memory: true,
            disable_advanced_features: true,
            timeout_secs: 300, // 5 minutes
        }
    }
}

impl MobileCrashReporter {
    /// Create new crash reporter
    pub fn new(config: CrashReporterConfig) -> Result<Self> {
        let analysis_engine = CrashAnalysisEngine::new(&config.analysis_config)?;
        let storage_manager = CrashStorageManager::new(&config.storage_config)?;
        let recovery_manager = CrashRecoveryManager::new(&config.recovery_config)?;

        Ok(Self {
            config,
            crash_history: Arc::new(RwLock::new(VecDeque::new())),
            analysis_engine: Arc::new(Mutex::new(analysis_engine)),
            storage_manager: Arc::new(Mutex::new(storage_manager)),
            recovery_manager: Arc::new(Mutex::new(recovery_manager)),
            signal_handler: None,
            is_initialized: Arc::new(Mutex::new(false)),
        })
    }

    /// Initialize crash reporter
    pub fn initialize(&mut self) -> Result<()> {
        {
            let mut initialized = self
                .is_initialized
                .lock()
                .map_err(|_| runtime_error("Failed to acquire lock"))?;

            if *initialized {
                return Ok(());
            }

            if !self.config.enabled {
                return Ok(());
            }

            *initialized = true;
        } // Drop the lock here

        // Setup signal handlers
        self.setup_signal_handlers()?;

        // Initialize storage
        self.storage_manager
            .lock()
            .map_err(|_| runtime_error("Failed to acquire lock"))?
            .initialize()?;

        // Load existing crash reports
        self.load_crash_history()?;

        Ok(())
    }

    /// Report a crash
    pub fn report_crash(&self, crash_info: CrashInfo) -> Result<String> {
        if !self.config.enabled {
            return Err(runtime_error("Crash reporter not enabled"));
        }

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

        // Collect system information
        let system_info = self.collect_system_info()?;
        let app_info = self.collect_app_info()?;

        // Create crash report
        let is_privacy_compliant = self.is_privacy_compliant(&crash_info);
        let mut crash_report = CrashReport {
            report_id: report_id.clone(),
            timestamp,
            crash_type: crash_info.crash_type,
            severity: self.assess_crash_severity(&crash_info),
            system_info,
            app_info,
            stack_trace: crash_info.stack_trace,
            memory_dump: crash_info.memory_dump,
            context: crash_info.context,
            analysis: None,
            recovery_suggestions: Vec::new(),
            is_privacy_compliant,
        };

        // Analyze crash if enabled
        if self.config.analysis_config.auto_analyze {
            if let Ok(analysis) = self.analyze_crash(&crash_report) {
                crash_report.analysis = Some(analysis);
            }
        }

        // Generate recovery suggestions
        crash_report.recovery_suggestions = self.generate_recovery_suggestions(&crash_report)?;

        // Store crash report
        self.store_crash_report(&crash_report)?;

        // Add to history
        let mut history = self
            .crash_history
            .write()
            .map_err(|_| runtime_error("Failed to acquire write lock"))?;
        history.push_back(crash_report.clone());

        // Limit history size
        while history.len() > 1000 {
            history.pop_front();
        }

        // Attempt recovery if enabled
        if self.config.recovery_config.auto_recovery {
            self.attempt_recovery(&crash_report)?;
        }

        // Report remotely if enabled
        if self.config.reporting_config.remote_reporting && self.has_user_consent() {
            self.report_remote(&crash_report)?;
        }

        Ok(report_id)
    }

    /// Get crash report by ID
    pub fn get_crash_report(&self, report_id: &str) -> Result<Option<CrashReport>> {
        let history = self
            .crash_history
            .read()
            .map_err(|_| runtime_error("Failed to acquire read lock"))?;

        Ok(history.iter().find(|report| report.report_id == report_id).cloned())
    }

    /// Get recent crash reports
    pub fn get_recent_crashes(&self, limit: Option<usize>) -> Result<Vec<CrashReport>> {
        let history = self
            .crash_history
            .read()
            .map_err(|_| runtime_error("Failed to acquire read lock"))?;

        let reports: Vec<CrashReport> =
            history.iter().rev().take(limit.unwrap_or(50)).cloned().collect();

        Ok(reports)
    }

    /// Get crash statistics
    pub fn get_crash_statistics(&self) -> Result<CrashStatistics> {
        let history = self
            .crash_history
            .read()
            .map_err(|_| runtime_error("Failed to acquire read lock"))?;

        let total_crashes = history.len();
        let mut crash_types = HashMap::new();
        let mut severity_counts = HashMap::new();

        for report in history.iter() {
            *crash_types.entry(report.crash_type).or_insert(0) += 1;
            *severity_counts.entry(report.severity).or_insert(0) += 1;
        }

        Ok(CrashStatistics {
            total_crashes,
            crash_types,
            severity_counts,
            crash_free_sessions: 0, // Would be calculated from session data
            mean_time_between_crashes: Duration::from_secs(0), // Would be calculated
        })
    }

    /// Clear crash history
    pub fn clear_crash_history(&self) -> Result<()> {
        let mut history = self
            .crash_history
            .write()
            .map_err(|_| runtime_error("Failed to acquire write lock"))?;
        history.clear();

        // Clear storage
        self.storage_manager
            .lock()
            .map_err(|_| runtime_error("Failed to acquire lock"))?
            .clear_all()?;

        Ok(())
    }

    /// Export crash reports
    pub fn export_crash_reports(&self, format: ExportFormat, output_path: &Path) -> Result<()> {
        let history = self
            .crash_history
            .read()
            .map_err(|_| runtime_error("Failed to acquire read lock"))?;

        match format {
            ExportFormat::Json => {
                let json = serde_json::to_string_pretty(&*history)
                    .map_err(|e| runtime_error(format!("Serialization error: {}", e)))?;
                fs::write(output_path, json)
                    .map_err(|e| runtime_error(format!("IO error: {}", e)))?;
            },
            ExportFormat::Csv => {
                let data: Vec<CrashReport> = history.iter().cloned().collect();
                self.export_csv(&data, output_path)?;
            },
            ExportFormat::Html => {
                let data: Vec<CrashReport> = history.iter().cloned().collect();
                self.export_html(&data, output_path)?;
            },
        }

        Ok(())
    }

    // Private helper methods

    fn setup_signal_handlers(&mut self) -> Result<()> {
        if !self.config.platform_config.signal_config.async_safe {
            return Ok(()); // Skip if async-safe handling not enabled
        }

        // Platform-specific signal handler setup would go here
        // This is a simplified version
        Ok(())
    }

    fn load_crash_history(&self) -> Result<()> {
        let storage_manager = self
            .storage_manager
            .lock()
            .map_err(|_| runtime_error("Failed to acquire lock"))?;

        let reports = storage_manager.load_all_reports()?;

        let mut history = self
            .crash_history
            .write()
            .map_err(|_| runtime_error("Failed to acquire write lock"))?;

        for report in reports {
            history.push_back(report);
        }

        Ok(())
    }

    fn generate_report_id(&self) -> String {
        format!(
            "crash_{}_{}",
            SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_nanos(),
            (legacy::f64() * u32::MAX as f64) as u32
        )
    }

    fn collect_system_info(&self) -> Result<SystemCrashInfo> {
        // Collect comprehensive system information
        Ok(SystemCrashInfo {
            device_info: crate::device_info::MobileDeviceDetector::detect()?,
            performance_metrics: None, // Would be populated from profiler
            memory_usage: self.collect_memory_usage()?,
            cpu_info: self.collect_cpu_info()?,
            gpu_info: self.collect_gpu_info(),
            thermal_state: None, // Would be populated from thermal manager
            battery_info: self.collect_battery_info(),
            network_info: self.collect_network_info(),
        })
    }

    fn collect_app_info(&self) -> Result<AppCrashInfo> {
        Ok(AppCrashInfo {
            app_version: env!("CARGO_PKG_VERSION").to_string(),
            build_number: "1".to_string(), // Would be from build system
            framework_version: env!("CARGO_PKG_VERSION").to_string(),
            app_state: AppState::Active, // Would be determined at runtime
            foreground_status: ForegroundStatus::Foreground,
            session_duration: Duration::from_secs(0), // Would be tracked
            model_info: None,                         // Would be populated if model is active
            recent_operations: Vec::new(),            // Would be tracked
        })
    }

    fn collect_memory_usage(&self) -> Result<MemoryUsageInfo> {
        // Platform-specific memory collection would go here
        Ok(MemoryUsageInfo {
            total_mb: 0.0,
            used_mb: 0.0,
            available_mb: 0.0,
            heap_mb: 0.0,
            stack_mb: 0.0,
            gpu_mb: None,
        })
    }

    fn collect_cpu_info(&self) -> Result<CpuCrashInfo> {
        Ok(CpuCrashInfo {
            usage_percent: 0.0,
            frequency_mhz: 0,
            temperature_c: None,
            throttling: false,
            active_cores: 1,
        })
    }

    fn collect_gpu_info(&self) -> Option<GpuCrashInfo> {
        None // Would be implemented with platform-specific GPU APIs
    }

    fn collect_battery_info(&self) -> Option<BatteryCrashInfo> {
        None // Would be implemented with platform-specific battery APIs
    }

    fn collect_network_info(&self) -> Option<NetworkCrashInfo> {
        None // Would be implemented with platform-specific network APIs
    }

    fn assess_crash_severity(&self, crash_info: &CrashInfo) -> CrashSeverity {
        match crash_info.crash_type {
            CrashType::SegmentationFault | CrashType::StackOverflow => CrashSeverity::Critical,
            CrashType::OutOfMemory => CrashSeverity::High,
            CrashType::UncaughtException => CrashSeverity::Medium,
            CrashType::ApplicationHang => CrashSeverity::Medium,
            _ => CrashSeverity::Low,
        }
    }

    fn is_privacy_compliant(&self, _crash_info: &CrashInfo) -> bool {
        // Check if crash report complies with privacy settings
        !self.config.privacy_config.include_user_data || self.config.privacy_config.anonymize_data
    }

    fn analyze_crash(&self, report: &CrashReport) -> Result<CrashAnalysis> {
        let analysis_engine = self
            .analysis_engine
            .lock()
            .map_err(|_| runtime_error("Failed to acquire lock"))?;

        analysis_engine.analyze_crash(report)
    }

    fn generate_recovery_suggestions(
        &self,
        report: &CrashReport,
    ) -> Result<Vec<RecoverySuggestion>> {
        let mut suggestions = Vec::new();

        match report.crash_type {
            CrashType::OutOfMemory => {
                suggestions.push(RecoverySuggestion {
                    suggestion_type: RecoveryStrategy::ClearCache,
                    description: "Clear application cache to free memory".to_string(),
                    steps: vec![
                        "Clear model cache".to_string(),
                        "Clear temporary files".to_string(),
                        "Restart inference engine".to_string(),
                    ],
                    success_probability: 0.8,
                    risk_level: RiskLevel::Low,
                    impact: RecoveryImpact {
                        user_experience: ImpactLevel::Low,
                        performance: ImpactLevel::Low,
                        data_loss_risk: RiskLevel::Low,
                        recovery_time_estimate: Duration::from_secs(30),
                    },
                });
            },
            CrashType::SegmentationFault => {
                suggestions.push(RecoverySuggestion {
                    suggestion_type: RecoveryStrategy::SafeMode,
                    description: "Enable safe mode with reduced functionality".to_string(),
                    steps: vec![
                        "Disable GPU acceleration".to_string(),
                        "Reduce memory usage".to_string(),
                        "Disable advanced features".to_string(),
                    ],
                    success_probability: 0.9,
                    risk_level: RiskLevel::Low,
                    impact: RecoveryImpact {
                        user_experience: ImpactLevel::Medium,
                        performance: ImpactLevel::High,
                        data_loss_risk: RiskLevel::Low,
                        recovery_time_estimate: Duration::from_secs(60),
                    },
                });
            },
            _ => {
                suggestions.push(RecoverySuggestion {
                    suggestion_type: RecoveryStrategy::RestartApp,
                    description: "Restart application to clear problematic state".to_string(),
                    steps: vec!["Restart application".to_string()],
                    success_probability: 0.7,
                    risk_level: RiskLevel::Medium,
                    impact: RecoveryImpact {
                        user_experience: ImpactLevel::High,
                        performance: ImpactLevel::Low,
                        data_loss_risk: RiskLevel::Medium,
                        recovery_time_estimate: Duration::from_secs(10),
                    },
                });
            },
        }

        Ok(suggestions)
    }

    fn store_crash_report(&self, report: &CrashReport) -> Result<()> {
        let storage_manager = self
            .storage_manager
            .lock()
            .map_err(|_| runtime_error("Failed to acquire lock"))?;

        storage_manager.store_report(report)
    }

    fn attempt_recovery(&self, report: &CrashReport) -> Result<()> {
        let mut recovery_manager = self
            .recovery_manager
            .lock()
            .map_err(|_| runtime_error("Failed to acquire lock"))?;

        recovery_manager.attempt_recovery(report)
    }

    fn has_user_consent(&self) -> bool {
        if !self.config.privacy_config.require_consent {
            return true;
        }

        // Would check user consent storage
        false
    }

    fn report_remote(&self, _report: &CrashReport) -> Result<()> {
        // Would implement remote reporting
        Ok(())
    }

    fn export_csv(&self, reports: &[CrashReport], output_path: &Path) -> Result<()> {
        let mut csv_content = String::new();
        csv_content.push_str("Report ID,Timestamp,Crash Type,Severity,App Version\n");

        for report in reports {
            csv_content.push_str(&format!(
                "{},{},{:?},{:?},{}\n",
                report.report_id,
                report.timestamp,
                report.crash_type,
                report.severity,
                report.app_info.app_version
            ));
        }

        fs::write(output_path, csv_content)
            .map_err(|e| runtime_error(format!("IO error: {}", e)))?;

        Ok(())
    }

    fn export_html(&self, reports: &[CrashReport], output_path: &Path) -> Result<()> {
        let mut html = String::new();
        html.push_str("<!DOCTYPE html><html><head><title>Crash Reports</title></head><body>");
        html.push_str("<h1>Crash Reports</h1>");
        html.push_str("<table border='1'>");
        html.push_str(
            "<tr><th>Report ID</th><th>Timestamp</th><th>Type</th><th>Severity</th></tr>",
        );

        for report in reports {
            html.push_str(&format!(
                "<tr><td>{}</td><td>{}</td><td>{:?}</td><td>{:?}</td></tr>",
                report.report_id, report.timestamp, report.crash_type, report.severity
            ));
        }

        html.push_str("</table></body></html>");

        fs::write(output_path, html).map_err(|e| runtime_error(format!("IO error: {}", e)))?;

        Ok(())
    }
}

/// Crash information provided when reporting a crash
#[derive(Debug, Clone)]
pub struct CrashInfo {
    pub crash_type: CrashType,
    pub stack_trace: Option<StackTrace>,
    pub memory_dump: Option<MemoryDump>,
    pub context: CrashContext,
}

/// Crash statistics
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrashStatistics {
    pub total_crashes: usize,
    pub crash_types: HashMap<CrashType, usize>,
    pub severity_counts: HashMap<CrashSeverity, usize>,
    pub crash_free_sessions: usize,
    pub mean_time_between_crashes: Duration,
}

/// Export formats
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum ExportFormat {
    Json,
    Csv,
    Html,
}

// Implementation of helper structs

impl CrashAnalysisEngine {
    fn new(_config: &CrashAnalysisConfig) -> Result<Self> {
        Ok(Self {
            pattern_database: HashMap::new(),
            similarity_threshold: 0.7,
            analysis_cache: HashMap::new(),
            ml_analyzer: None,
        })
    }

    fn analyze_crash(&self, _report: &CrashReport) -> Result<CrashAnalysis> {
        // Simplified analysis - would implement comprehensive analysis
        Ok(CrashAnalysis {
            root_cause: Some("Memory access violation".to_string()),
            contributing_factors: vec!["High memory usage".to_string()],
            similar_crashes: Vec::new(),
            patterns: Vec::new(),
            risk_assessment: RiskAssessment {
                risk_level: RiskLevel::High,
                recurrence_likelihood: 0.6,
                impact_assessment: ImpactAssessment {
                    user_impact: ImpactLevel::High,
                    business_impact: ImpactLevel::Medium,
                    technical_impact: ImpactLevel::High,
                    security_impact: ImpactLevel::Low,
                },
                mitigation_urgency: UrgencyLevel::High,
            },
            confidence_score: 0.8,
            analysis_timestamp: SystemTime::now()
                .duration_since(UNIX_EPOCH)
                .unwrap_or_default()
                .as_secs(),
        })
    }
}

impl CrashStorageManager {
    fn new(config: &CrashStorageConfig) -> Result<Self> {
        Ok(Self {
            storage_path: config.storage_directory.clone(),
            encryption_enabled: config.encrypt_reports,
            compression_enabled: config.compress_reports,
            max_reports: config.max_local_reports,
            current_size: 0,
            max_size: config.max_storage_size_mb * 1024 * 1024,
        })
    }

    fn initialize(&mut self) -> Result<()> {
        if !self.storage_path.exists() {
            fs::create_dir_all(&self.storage_path)
                .map_err(|e| runtime_error(format!("IO error: {}", e)))?;
        }
        Ok(())
    }

    fn store_report(&self, report: &CrashReport) -> Result<()> {
        let file_path = self.storage_path.join(format!("{}.json", report.report_id));

        let json = serde_json::to_string(report)
            .map_err(|e| runtime_error(format!("Serialization error: {}", e)))?;

        fs::write(file_path, json).map_err(|e| runtime_error(format!("IO error: {}", e)))?;

        Ok(())
    }

    fn load_all_reports(&self) -> Result<Vec<CrashReport>> {
        let mut reports = Vec::new();

        if !self.storage_path.exists() {
            return Ok(reports);
        }

        let entries = fs::read_dir(&self.storage_path)
            .map_err(|e| runtime_error(format!("IO error: {}", e)))?;

        for entry in entries {
            let entry = entry.map_err(|e| runtime_error(format!("IO error: {}", e)))?;
            let path = entry.path();

            if path.extension().and_then(|s| s.to_str()) == Some("json") {
                if let Ok(content) = fs::read_to_string(&path) {
                    if let Ok(report) = serde_json::from_str::<CrashReport>(&content) {
                        reports.push(report);
                    }
                }
            }
        }

        Ok(reports)
    }

    fn clear_all(&self) -> Result<()> {
        if self.storage_path.exists() {
            fs::remove_dir_all(&self.storage_path)
                .map_err(|e| runtime_error(format!("IO error: {}", e)))?;
            fs::create_dir_all(&self.storage_path)
                .map_err(|e| runtime_error(format!("IO error: {}", e)))?;
        }
        Ok(())
    }
}

impl CrashRecoveryManager {
    fn new(config: &CrashRecoveryConfig) -> Result<Self> {
        Ok(Self {
            recovery_strategies: config.recovery_strategies.clone(),
            safe_mode_active: false,
            recovery_history: VecDeque::new(),
            auto_recovery_enabled: config.auto_recovery,
        })
    }

    fn attempt_recovery(&mut self, _report: &CrashReport) -> Result<()> {
        if !self.auto_recovery_enabled {
            return Ok(());
        }

        // Simplified recovery attempt
        let strategies = self.recovery_strategies.clone();
        for strategy in &strategies {
            let start_time = Instant::now();
            let success = self.execute_recovery_strategy(*strategy)?;
            let duration = start_time.elapsed();

            let attempt = RecoveryAttempt {
                strategy: *strategy,
                timestamp: SystemTime::now()
                    .duration_since(UNIX_EPOCH)
                    .unwrap_or_default()
                    .as_secs(),
                success,
                duration,
                error: None,
            };

            self.recovery_history.push_back(attempt);

            if success {
                break;
            }
        }

        Ok(())
    }

    fn execute_recovery_strategy(&mut self, strategy: RecoveryStrategy) -> Result<bool> {
        match strategy {
            RecoveryStrategy::ClearCache => {
                // Would implement cache clearing
                Ok(true)
            },
            RecoveryStrategy::ResetModel => {
                // Would implement model reset
                Ok(true)
            },
            RecoveryStrategy::SafeMode => {
                self.safe_mode_active = true;
                Ok(true)
            },
            _ => Ok(false),
        }
    }
}

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

    #[test]
    fn test_crash_reporter_creation() {
        let config = CrashReporterConfig::default();
        let reporter = MobileCrashReporter::new(config);
        assert!(reporter.is_ok());
    }

    #[test]
    fn test_crash_severity_assessment() {
        let config = CrashReporterConfig::default();
        let reporter = MobileCrashReporter::new(config).expect("Operation failed");

        let crash_info = CrashInfo {
            crash_type: CrashType::SegmentationFault,
            stack_trace: None,
            memory_dump: None,
            context: CrashContext {
                current_operation: None,
                user_actions: Vec::new(),
                system_events: Vec::new(),
                model_anomalies: Vec::new(),
                performance_bottlenecks: Vec::new(),
                error_logs: Vec::new(),
            },
        };

        let severity = reporter.assess_crash_severity(&crash_info);
        assert_eq!(severity, CrashSeverity::Critical);
    }

    #[test]
    fn test_privacy_compliance() {
        let mut config = CrashReporterConfig::default();
        config.privacy_config.include_user_data = false;
        config.privacy_config.anonymize_data = true;

        let reporter = MobileCrashReporter::new(config).expect("Operation failed");

        let crash_info = CrashInfo {
            crash_type: CrashType::OutOfMemory,
            stack_trace: None,
            memory_dump: None,
            context: CrashContext {
                current_operation: None,
                user_actions: Vec::new(),
                system_events: Vec::new(),
                model_anomalies: Vec::new(),
                performance_bottlenecks: Vec::new(),
                error_logs: Vec::new(),
            },
        };

        assert!(reporter.is_privacy_compliant(&crash_info));
    }

    #[test]
    fn test_recovery_suggestions() {
        let config = CrashReporterConfig::default();
        let reporter = MobileCrashReporter::new(config).expect("Operation failed");

        let crash_report = CrashReport {
            report_id: "test".to_string(),
            timestamp: 0,
            crash_type: CrashType::OutOfMemory,
            severity: CrashSeverity::High,
            system_info: SystemCrashInfo {
                device_info: crate::device_info::MobileDeviceDetector::detect()
                    .expect("Operation failed"),
                performance_metrics: None,
                memory_usage: MemoryUsageInfo {
                    total_mb: 1024.0,
                    used_mb: 1000.0,
                    available_mb: 24.0,
                    heap_mb: 800.0,
                    stack_mb: 50.0,
                    gpu_mb: None,
                },
                cpu_info: CpuCrashInfo {
                    usage_percent: 90.0,
                    frequency_mhz: 2000,
                    temperature_c: Some(80.0),
                    throttling: true,
                    active_cores: 4,
                },
                gpu_info: None,
                thermal_state: None,
                battery_info: None,
                network_info: None,
            },
            app_info: AppCrashInfo {
                app_version: "1.0.0".to_string(),
                build_number: "1".to_string(),
                framework_version: "1.0.0".to_string(),
                app_state: AppState::Active,
                foreground_status: ForegroundStatus::Foreground,
                session_duration: Duration::from_secs(300),
                model_info: None,
                recent_operations: Vec::new(),
            },
            stack_trace: None,
            memory_dump: None,
            context: CrashContext {
                current_operation: None,
                user_actions: Vec::new(),
                system_events: Vec::new(),
                model_anomalies: Vec::new(),
                performance_bottlenecks: Vec::new(),
                error_logs: Vec::new(),
            },
            analysis: None,
            recovery_suggestions: Vec::new(),
            is_privacy_compliant: true,
        };

        let suggestions =
            reporter.generate_recovery_suggestions(&crash_report).expect("Operation failed");
        assert!(!suggestions.is_empty());
        assert_eq!(suggestions[0].suggestion_type, RecoveryStrategy::ClearCache);
    }
}