Institutional
Certainty.

use anchor_lang::prelude::*;
use anchor_spl::token::{self, Transfer};

#[program]
pub mod treasury_manager {
    use super::*;

    pub fn execute_rebalance(
        ctx: Context<ExecuteRebalance>, 
        amount: u64
    ) -> Result<()> {
        
        // 1. Verify internal risk limits (Spending Caps)
        require!(
            ctx.accounts.risk_state.daily_spent + amount < ctx.accounts.risk_state.limit,
            ErrorCode::ExceedsDailyLimit
        );

        // 2. CPI to SPL Token Program via Squads/Authority
        let cpi_accounts = Transfer {
            from: ctx.accounts.treasury_vault.to_account_info(),
            to: ctx.accounts.destination.to_account_info(),
            authority: ctx.accounts.authority.to_account_info(),
        };
        
        let cpi_ctx = CpiContext::new(
            ctx.accounts.token_program.to_account_info(), 
            cpi_accounts
        );
        
        token::transfer(cpi_ctx, amount)?;

        // 3. Emit event for off-chain indexing (Helius/Geyser)
        emit!(RebalanceEvent { 
            token: ctx.accounts.mint.key(), 
            amount, 
            timestamp: Clock::get()?.unix_timestamp 
        });
        
        Ok(())
    }
}