//! L6 应用层: AA-PE、FTAN、UCA

use tracing::info;
use std::collections::HashMap;

/// 元胞状态感知传播 (Awareness-Aware Propagation Engine)
pub struct AwarenessPropagationEngine {
    /// 意识温度阈值
    awareness_threshold: f64,
}

impl AwarenessPropagationEngine {
    pub fn new() -> Self {
        info!("Creating AA-PE");
        Self {
            awareness_threshold: 0.5,
        }
    }

    /// 传播消息
    pub fn propagate(&self, _message: &[u8], awareness_level: f64) -> bool {
        awareness_level >= self.awareness_threshold
    }

    /// 设置意识阈值
    pub fn set_threshold(&mut self, threshold: f64) {
        self.awareness_threshold = threshold;
    }
}

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

/// 文明内聚合通道 (Fractal Transaction Aggregation Network)
pub struct FractalTransactionAggregator {
    /// 聚合缓冲区
    buffer: HashMap<u64, Vec<Vec<u8>>>,
}

impl FractalTransactionAggregator {
    pub fn new() -> Self {
        info!("Creating FTAN");
        Self {
            buffer: HashMap::new(),
        }
    }

    /// 添加交易到聚合缓冲区
    pub fn add_transaction(&mut self, block_height: u64, tx: Vec<u8>) {
        self.buffer.entry(block_height).or_insert_with(Vec::new).push(tx);
    }

    /// 聚合交易
    pub fn aggregate(&mut self, block_height: u64) -> Vec<Vec<u8>> {
        self.buffer.remove(&block_height).unwrap_or_default()
    }
}

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

/// 文明记忆链审计 (Universal Constitution Auditor)
pub struct UniversalConstitutionAuditor {
    /// 审计日志
    audit_log: Vec<AuditEntry>,
}

#[derive(Debug, Clone)]
pub struct AuditEntry {
    pub timestamp: u64,
    pub event_type: String,
    pub details: String,
}

impl UniversalConstitutionAuditor {
    pub fn new() -> Self {
        info!("Creating UCA");
        Self {
            audit_log: Vec::new(),
        }
    }

    /// 记录审计事件
    pub fn log_event(&mut self, event_type: String, details: String) {
        let entry = AuditEntry {
            timestamp: Self::current_timestamp(),
            event_type,
            details,
        };
        self.audit_log.push(entry);
    }

    /// 获取审计日志
    pub fn get_audit_log(&self) -> &[AuditEntry] {
        &self.audit_log
    }

    fn current_timestamp() -> u64 {
        use std::time::{SystemTime, UNIX_EPOCH};
        SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .unwrap()
            .as_secs()
    }
}

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