//! Core types and traits for advanced ecosystem integration

use crate::distributed::ResourceRequirements;
use crate::error::{CoreError, CoreResult};
#[cfg(feature = "serialization")]
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::time::{Duration, Instant};

/// Configuration for advanced ecosystem
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone)]
pub struct AdvancedEcosystemConfig {
    /// Enable cross-module optimization
    pub enable_cross_module_optimization: bool,
    /// Enable adaptive load balancing
    pub enable_adaptive_load_balancing: bool,
    /// Enable fault tolerance
    pub enable_fault_tolerance: bool,
    /// Maximum memory usage per module (MB)
    pub max_memory_per_module: usize,
    /// Performance monitoring interval (ms)
    pub monitoring_interval_ms: u64,
    /// Resource rebalancing threshold
    pub rebalancing_threshold: f64,
    /// Communication timeout (ms)
    pub communication_timeout_ms: u64,
}

impl Default for AdvancedEcosystemConfig {
    fn default() -> Self {
        Self {
            enable_cross_module_optimization: true,
            enable_adaptive_load_balancing: true,
            enable_fault_tolerance: true,
            max_memory_per_module: 2048, // 2GB
            monitoring_interval_ms: 1000,
            rebalancing_threshold: 0.8,
            communication_timeout_ms: 5000,
        }
    }
}

/// Status of the advanced ecosystem
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone)]
pub struct EcosystemStatus {
    /// Overall health status
    pub health: EcosystemHealth,
    /// Number of active modules
    pub active_modules: usize,
    /// Total operations processed
    pub total_operations: u64,
    /// Average response time (ms)
    pub avg_response_time: f64,
    /// Resource utilization
    pub resource_utilization: ResourceUtilization,
    /// Last update timestamp
    #[cfg_attr(feature = "serde", serde(skip))]
    pub last_update: Option<Instant>,
}

/// Health status of the ecosystem
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone, PartialEq)]
pub enum EcosystemHealth {
    Healthy,
    Warning,
    Critical,
    Degraded,
    Offline,
}

/// Resource utilization metrics
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone)]
pub struct ResourceUtilization {
    /// CPU utilization (0.0-1.0)
    pub cpu_usage: f64,
    /// Memory utilization (0.0-1.0)
    pub memory_usage: f64,
    /// GPU utilization (0.0-1.0)
    pub gpu_usage: Option<f64>,
    /// Network utilization (0.0-1.0)
    pub network_usage: f64,
}

/// Trait for advanced modules to implement ecosystem integration
pub trait AdvancedModule: std::fmt::Debug {
    /// Get module name
    fn name(&self) -> &str;

    /// Get module version
    fn version(&self) -> &str;

    /// Get module capabilities
    fn capabilities(&self) -> Vec<String>;

    /// Initialize module for advanced mode
    fn initialize_advanced(&mut self) -> CoreResult<()>;

    /// Process data in advanced mode
    fn process_advanced(&mut self, input: AdvancedInput) -> CoreResult<AdvancedOutput>;

    /// Get performance metrics
    fn get_performance_metrics(&self) -> ModulePerformanceMetrics;

    /// Get resource usage
    fn get_resource_usage(&self) -> ModuleResourceUsage;

    /// Optimize for ecosystem coordination
    fn optimize_for_ecosystem(&mut self, context: &EcosystemContext) -> CoreResult<()>;

    /// Handle inter-module communication
    fn handle_communication(
        &mut self,
        message: InterModuleMessage,
    ) -> CoreResult<InterModuleMessage>;

    /// Shutdown module gracefully
    fn shutdown(&mut self) -> CoreResult<()>;
}

/// Input for advanced processing
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct AdvancedInput {
    /// Data payload
    pub data: Vec<u8>,
    /// Processing parameters
    pub parameters: HashMap<String, f64>,
    /// Context information
    pub context: ProcessingContext,
    /// Priority level
    pub priority: Priority,
}

/// Output from advanced processing
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct AdvancedOutput {
    /// Processed data
    pub data: Vec<u8>,
    /// Processing metrics
    pub metrics: ProcessingMetrics,
    /// Quality score
    pub quality_score: f64,
    /// Confidence level
    pub confidence: f64,
}

/// Processing context for advanced operations
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct ProcessingContext {
    /// Operation type
    pub operationtype: String,
    /// Expected output format
    pub expected_format: String,
    /// Quality requirements
    pub quality_requirements: QualityRequirements,
    /// Timing constraints
    pub timing_constraints: TimingConstraints,
}

/// Priority levels for processing
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone, PartialEq)]
pub enum Priority {
    Low,
    Normal,
    High,
    Critical,
    RealTime,
}

/// Processing strategy for advanced operations
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum ProcessingStrategy {
    SingleModule,
    Sequential,
    Parallel,
    PipelineDistributed,
}

/// Processing plan for advanced operations
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct ProcessingPlan {
    pub strategy: ProcessingStrategy,
    pub primary_module: String,
    pub module_chain: Vec<String>,
    pub parallel_modules: Vec<String>,
    pub estimated_duration: Duration,
    pub resource_requirements: ResourceRequirements,
}

/// Cross-module optimization configuration
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone)]
pub struct CrossModuleOptimizationConfig {
    pub enable_data_sharing: bool,
    pub enable_compute_sharing: bool,
    pub optimization_level: OptimizationLevel,
    pub max_memory_usage: usize,
    pub target_latency: Duration,
}

/// Optimization level for cross-module operations
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone, PartialEq)]
pub enum OptimizationLevel {
    Conservative,
    Balanced,
    Aggressive,
    Advanced,
}

/// Quality requirements for processing
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct QualityRequirements {
    /// Minimum accuracy required
    pub min_accuracy: f64,
    /// Maximum acceptable error
    pub maxerror: f64,
    /// Precision requirements
    pub precision: usize,
}

/// Timing constraints for processing
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct TimingConstraints {
    /// Maximum processing time
    pub max_processing_time: Duration,
    /// Deadline for completion
    pub deadline: Option<Instant>,
    /// Real-time requirements
    pub real_time: bool,
}

/// Processing metrics
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct ProcessingMetrics {
    /// Processing time
    pub processing_time: Duration,
    /// Memory used
    pub memory_used: usize,
    /// CPU cycles
    pub cpu_cycles: u64,
    /// GPU time (if applicable)
    pub gpu_time: Option<Duration>,
}

/// Performance metrics for a module
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct ModulePerformanceMetrics {
    /// Average processing time
    pub avg_processing_time: Duration,
    /// Operations per second
    pub ops_per_second: f64,
    /// Success rate
    pub success_rate: f64,
    /// Quality score
    pub quality_score: f64,
    /// Efficiency score
    pub efficiency_score: f64,
}

/// Resource usage for a module
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct ModuleResourceUsage {
    /// Memory usage (MB)
    pub memory_mb: f64,
    /// CPU usage (percentage)
    pub cpu_percentage: f64,
    /// GPU usage (percentage)
    pub gpu_percentage: Option<f64>,
    /// Network bandwidth (MB/s)
    pub networkbandwidth: f64,
}

/// Context for ecosystem operations
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct EcosystemContext {
    /// Available resources
    pub available_resources: ResourceUtilization,
    /// Current load distribution
    pub load_distribution: HashMap<String, f64>,
    /// Performance targets
    pub performance_targets: PerformanceTargets,
    /// Optimization hints
    pub optimization_hints: Vec<String>,
}

/// Performance targets for the ecosystem
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct PerformanceTargets {
    /// Target latency (ms)
    pub target_latency: f64,
    /// Target throughput (ops/sec)
    pub target_throughput: f64,
    /// Target quality score
    pub target_quality: f64,
    /// Target resource efficiency
    pub target_efficiency: f64,
}

/// Inter-module communication message
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct InterModuleMessage {
    /// Source module
    pub from: String,
    /// Destination module
    pub to: String,
    /// Message type
    pub messagetype: MessageType,
    /// Message payload
    pub payload: Vec<u8>,
    /// Timestamp
    pub timestamp: Instant,
}

/// Types of inter-module messages
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub enum MessageType {
    DataTransfer,
    StatusUpdate,
    ResourceRequest,
    OptimizationHint,
    ErrorReport,
    ConfigUpdate,
}

/// Performance metrics for operations
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone)]
pub struct PerformanceMetrics {
    pub throughput: f64,
    pub latency: Duration,
    pub cpu_usage: f64,
    pub memory_usage: usize,
    pub gpu_usage: f64,
}

/// Pipeline stage configuration
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct PipelineStage {
    pub name: String,
    pub module: String,
    pub config: HashMap<String, String>,
    pub dependencies: Vec<String>,
}

/// Context for optimization operations
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct OptimizationContext {
    pub learningrate: f64,
    pub accumulated_performance: Vec<f64>,
    pub adaptation_history: HashMap<String, f64>,
    pub total_memory_used: usize,
    pub total_cpu_cycles: u64,
    pub total_gpu_time: Duration,
    pub final_quality_score: f64,
    pub confidence_score: f64,
    pub stages_completed: usize,
}

impl Default for OptimizationContext {
    fn default() -> Self {
        Self::new()
    }
}

impl OptimizationContext {
    pub fn new() -> Self {
        Self {
            learningrate: 0.01,
            accumulated_performance: Vec::new(),
            adaptation_history: HashMap::new(),
            total_memory_used: 0,
            total_cpu_cycles: 0,
            total_gpu_time: Duration::from_secs(0),
            final_quality_score: 0.0,
            confidence_score: 0.0,
            stages_completed: 0,
        }
    }

    pub fn stage(&mut self, stage: &PipelineStage) -> CoreResult<()> {
        // Update optimization context based on stage results
        self.final_quality_score += 0.1;
        self.confidence_score = (self.confidence_score + 0.9) / 2.0;
        Ok(())
    }
}

/// Optimized processing pipeline
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct OptimizedPipeline {
    pub stages: Vec<PipelineStage>,
    pub optimization_level: OptimizationLevel,
    pub estimated_performance: PerformanceMetrics,
}

/// Workflow execution plan
#[allow(dead_code)]
#[derive(Debug, Clone)]
pub struct WorkflowExecutionPlan {
    pub stages: Vec<WorkflowStage>,
    pub estimated_duration: Duration,
}

/// Workflow stage specification
#[allow(dead_code)]
#[cfg_attr(feature = "serialization", derive(Serialize, Deserialize))]
#[derive(Debug, Clone)]
pub struct WorkflowStage {
    pub name: String,
    pub module: String,
    pub operation: String,
    pub inputs: Vec<String>,
    pub outputs: Vec<String>,
}
