anya-core 1.2.0

//! DAO module
//!
//! This module provides decentralized autonomous organization functionality,
//! including governance, voting, and proposal management.

use crate::AnyaError;
use chrono::Utc;
use rand::random;
use serde_json::json as serde_json;
use std::collections::HashMap;
use std::error::Error;

// DAO Module for Anya Core
// Implements governance and voting mechanisms

pub mod compat;
pub mod governance;
pub mod legal;
pub mod voting;
pub use governance::DaoLevel;

// Re-export main components

#[cfg(test)]
mod tests;

pub use governance::{DaoGovernance, ProposalStatus};

// Define the types that were previously imported from a non-existent module
#[derive(Debug, Clone)]
pub struct Proposal {
    pub id: String,
    pub title: String,
    pub description: String,
    pub author: String,
    pub status: ProposalStatus,
    pub votes: i32,
    pub votes_for: u64,
    pub votes_against: u64,
    pub amount: u64,
    pub proposer: String,
    pub created_at: chrono::DateTime<Utc>,
    pub updated_at: chrono::DateTime<Utc>,
    pub execution_time: Option<chrono::DateTime<Utc>>,
}

#[derive(Debug, Clone, Default)]
pub struct ProposalMetrics {
    // General metrics
    pub proposal_count: usize,
    pub passed_count: usize,
    pub rejected_count: usize,
    pub active_count: usize,

    // ML analysis metrics
    pub sentiment_score: f64,
    pub risk_assessment: RiskMetrics,
    pub ml_predictions: std::collections::HashMap<String, f64>,
    pub federated_consensus: std::collections::HashMap<String, f64>,
    pub last_updated: chrono::DateTime<Utc>,
}

#[derive(Debug, Clone, Default)]
pub struct RiskMetrics {
    pub risk_score: f64,
    pub compliance_level: String,
    pub audit_status: bool,
    pub risk_factors: Vec<(String, f64)>,
    pub mitigation_suggestions: Vec<String>,
    pub last_updated: chrono::DateTime<Utc>,
}

/// Configuration options for DAO functionality
#[derive(Debug, Clone)]
pub struct DAOConfig {
    /// Whether DAO functionality is enabled
    pub enabled: bool,
    /// Governance contract address
    pub contract_address: Option<String>,
    /// Proposal threshold (minimum token amount)
    pub proposal_threshold: u64,
    /// Voting period in blocks
    pub voting_period_blocks: u32,
    /// Time lock period in blocks
    pub time_lock_blocks: u32,
}

impl Default for DAOConfig {
    fn default() -> Self {
        Self {
            enabled: true,
            contract_address: None,
            proposal_threshold: 100_000_000, // 1 token with 8 decimals
            voting_period_blocks: 1008,      // ~1 week
            time_lock_blocks: 144,           // ~1 day
        }
    }
}

/// Core DAO implementation
pub struct DAOManager {
    config: DAOConfig,
    proposals: HashMap<String, Proposal>,
}

impl DAOManager {
    /// Create a new DAOManager with the given configuration
    pub fn new(config: DAOConfig) -> Result<Self, Box<dyn Error>> {
        if !config.enabled {
            return Ok(Self {
                config,
                proposals: HashMap::new(),
            });
        }

        Ok(Self {
            config,
            proposals: HashMap::new(),
        })
    }

    /// Create a new proposal
    pub fn create_proposal(
        &mut self,
        title: &str,
        description: &str,
        amount: u64,
    ) -> Result<Proposal, Box<dyn Error>> {
        if amount < self.config.proposal_threshold {
            return Err(Box::new(AnyaError::DAO(format!(
                "Proposal amount ({}) is below the threshold ({})",
                amount, self.config.proposal_threshold
            ))));
        }

        let proposal_id = format!("proposal:{:x}", random::<u64>());

        let proposal = Proposal {
            id: proposal_id.clone(),
            title: title.to_string(),
            description: description.to_string(),
            author: "unknown".to_string(),
            proposer: "unknown".to_string(), // Would be set from context in real implementation
            amount,
            votes_for: 0,
            votes_against: 0,
            votes: 0,
            status: ProposalStatus::Active,
            created_at: Utc::now(),
            updated_at: Utc::now(),
            execution_time: None,
        };

        self.proposals.insert(proposal_id.clone(), proposal.clone());

        Ok(proposal)
    }

    /// Vote on a proposal
    pub fn vote(
        &mut self,
        proposal_id: &str,
        vote_for: bool,
        amount: u64,
    ) -> Result<(), Box<dyn Error>> {
        let proposal = self.proposals.get_mut(proposal_id).ok_or_else(|| {
            Box::new(AnyaError::DAO(format!("Proposal not found: {proposal_id}")))
        })?;

        if proposal.status != ProposalStatus::Active {
            return Err(Box::new(AnyaError::DAO(format!(
                "Proposal is not active: {:?}",
                proposal.status
            ))));
        }

        if vote_for {
            proposal.votes_for += amount;
        } else {
            proposal.votes_against += amount;
        }

        proposal.updated_at = Utc::now();

        Ok(())
    }

    /// Get a proposal by ID
    pub fn get_proposal(&self, proposal_id: &str) -> Result<Proposal, Box<dyn Error>> {
        Ok(self.proposals.get(proposal_id).cloned().ok_or_else(|| {
            Box::new(AnyaError::DAO(format!("Proposal not found: {proposal_id}")))
        })?)
    }

    /// List all proposals
    pub fn list_proposals(&self) -> Vec<Proposal> {
        self.proposals.values().cloned().collect()
    }

    /// Execute a proposal
    pub fn execute_proposal(&mut self, proposal_id: &str) -> Result<(), Box<dyn Error>> {
        let proposal = self.proposals.get_mut(proposal_id).ok_or_else(|| {
            Box::new(AnyaError::DAO(format!("Proposal not found: {proposal_id}")))
        })?;

        if proposal.status != ProposalStatus::Active {
            return Err(Box::new(AnyaError::DAO(format!(
                "Proposal is not active: {:?}",
                proposal.status
            ))));
        }

        if proposal.votes_for <= proposal.votes_against {
            return Err(Box::new(AnyaError::DAO(format!(
                "Proposal does not have enough votes: {} vs {}",
                proposal.votes_for, proposal.votes_against
            ))));
        }

        // In a real implementation, this would execute the proposal
        proposal.status = ProposalStatus::Executed;
        proposal.execution_time = Some(Utc::now());
        proposal.updated_at = Utc::now();

        Ok(())
    }

    /// Get the system status
    pub fn get_status(&self) -> (bool, u8) {
        let operational = self.config.enabled;
        let health = if operational {
            // Basic health check based on configuration
            if self.config.contract_address.is_some() {
                100
            } else {
                70 // Configured but no contract address
            }
        } else {
            0
        };

        (operational, health)
    }

    /// Get system metrics
    pub fn get_metrics(&self) -> HashMap<String, serde_json::Value> {
        let mut metrics = HashMap::new();

        // Add basic metrics
        metrics.insert(
            "enabled".to_string(),
            serde_json::json!(self.config.enabled),
        );
        metrics.insert(
            "proposal_count".to_string(),
            serde_json::json!(self.proposals.len()),
        );
        metrics.insert(
            "proposal_threshold".to_string(),
            serde_json::json!(self.config.proposal_threshold),
        );
        metrics.insert(
            "voting_period_blocks".to_string(),
            serde_json::json!(self.config.voting_period_blocks),
        );

        // Add contract address if available
        if let Some(address) = &self.config.contract_address {
            metrics.insert("contract_address".to_string(), serde_json::json!(address));
        }

        // Add proposal status counts
        let active_proposals = self
            .proposals
            .values()
            .filter(|p| p.status == ProposalStatus::Active)
            .count();
        let passed_proposals = self
            .proposals
            .values()
            .filter(|p| p.status == ProposalStatus::Passed)
            .count();
        let executed_proposals = self
            .proposals
            .values()
            .filter(|p| p.status == ProposalStatus::Executed)
            .count();

        metrics.insert(
            "active_proposals".to_string(),
            serde_json::json!(active_proposals),
        );
        metrics.insert(
            "passed_proposals".to_string(),
            serde_json!(passed_proposals),
        );
        metrics.insert(
            "executed_proposals".to_string(),
            serde_json!(executed_proposals),
        );

        metrics
    }
}