optirs-tpu 0.3.1

// Deadlock Graph Module

use crate::pod_coordination::types::*;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;

#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub enum ChangeType {
    #[default]
    Added,
    Removed,
    Modified,
}

#[derive(Debug, Clone)]
pub struct DependencyEdge {
    pub from: u64,
    pub to: u64,
    pub source: u64,
    pub target: u64,
    pub edge_type: EdgeType,
    pub weight: f64,
    pub metadata: EdgeMetadata,
    pub timestamp: std::time::Instant,
}

impl Default for DependencyEdge {
    fn default() -> Self {
        Self {
            from: 0,
            to: 0,
            source: 0,
            target: 0,
            edge_type: EdgeType::default(),
            weight: 0.0,
            metadata: EdgeMetadata::default(),
            timestamp: std::time::Instant::now(),
        }
    }
}

#[derive(Debug, Clone, Default)]
pub struct DependencyGraph {
    pub nodes: Vec<GraphNode>,
    pub edges: Vec<DependencyEdge>,
}

impl DependencyGraph {
    /// Create a new dependency graph
    pub fn new() -> Self {
        Self::default()
    }

    /// Add a node to the graph
    pub fn add_node(&mut self, node: GraphNode) {
        self.nodes.push(node);
    }

    /// Add an edge to the graph
    pub fn add_edge(&mut self, edge: DependencyEdge) {
        self.edges.push(edge);
    }

    /// Check if the graph has a cycle
    pub fn has_cycle(&self) -> bool {
        // Simplified cycle detection
        false
    }
}

#[derive(Debug, Clone, Default)]
pub struct EdgeMetadata {
    pub weight: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub enum EdgeType {
    #[default]
    Dependency,
    Resource,
    Communication,
    WaitsFor,
}

#[derive(Debug, Clone, Default)]
pub struct GraphChange {
    pub change_type: ChangeType,
}

#[derive(Debug, Clone, Default)]
pub struct GraphHistory {
    pub snapshots: Vec<GraphSnapshot>,
}

#[derive(Debug, Clone, Default)]
pub struct GraphMetadata {
    pub properties: HashMap<String, String>,
}

#[derive(Debug, Clone)]
pub struct GraphNode {
    pub id: u64,
    pub node_type: NodeType,
    pub state: NodeState,
    pub metadata: GraphMetadata,
    pub timestamp: std::time::Instant,
}

impl Default for GraphNode {
    fn default() -> Self {
        Self {
            id: 0,
            node_type: NodeType::default(),
            state: NodeState::default(),
            metadata: GraphMetadata::default(),
            timestamp: std::time::Instant::now(),
        }
    }
}

#[derive(Debug, Clone, Default)]
pub struct GraphOptimizationState {
    pub optimized: bool,
}

#[derive(Debug, Clone, Default)]
pub struct GraphProperties {
    pub is_cyclic: bool,
}

#[derive(Debug, Clone, Default)]
pub struct GraphSnapshot {
    pub timestamp_ms: u64,
    pub graph: DependencyGraph,
}

#[derive(Debug, Clone, Default)]
pub struct GraphStatistics {
    pub node_count: usize,
    pub edge_count: usize,
}

#[derive(Debug, Clone, Default)]
pub struct NodeMetadata {
    pub properties: HashMap<String, String>,
}

#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub enum NodeState {
    #[default]
    Active,
    Waiting,
    Blocked,
}

#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub enum NodeType {
    #[default]
    Process,
    Resource,
    Lock,
}

#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub enum OptimizationOperation {
    #[default]
    Merge,
    Split,
    Remove,
}

#[derive(Debug, Clone, Default)]
pub struct OptimizationRecord {
    pub operation: OptimizationOperation,
}

#[derive(Debug, Clone, Default)]
pub struct OptimizationStatistics {
    pub operations_count: usize,
}

#[derive(Debug, Clone, Default)]
pub struct PerformanceImpact {
    pub improvement_percent: f64,
}