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/* This file is part of DarkFi (https://dark.fi)
*
* Copyright (C) 2020-2024 Dyne.org foundation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
//! Smart contract implementing Anonymous DAOs on DarkFi.
use darkfi_sdk::error::ContractError;
/// Functions available in the contract
#[repr(u8)]
#[derive(PartialEq, Debug)]
pub enum DaoFunction {
Mint = 0x00,
Propose = 0x01,
Vote = 0x02,
Exec = 0x03,
AuthMoneyTransfer = 0x04,
}
impl TryFrom<u8> for DaoFunction {
type Error = ContractError;
fn try_from(b: u8) -> core::result::Result<Self, Self::Error> {
match b {
0x00 => Ok(DaoFunction::Mint),
0x01 => Ok(DaoFunction::Propose),
0x02 => Ok(DaoFunction::Vote),
0x03 => Ok(DaoFunction::Exec),
0x04 => Ok(DaoFunction::AuthMoneyTransfer),
_ => Err(ContractError::InvalidFunction),
}
}
}
/// Internal contract errors
pub mod error;
/// Call parameters definitions
pub mod model;
#[cfg(not(feature = "no-entrypoint"))]
/// WASM entrypoint functions
pub mod entrypoint;
#[cfg(feature = "client")]
/// Client API for interaction with this smart contract
pub mod client;
// These are the different sled trees that will be created
pub const DAO_CONTRACT_DB_INFO_TREE: &str = "dao_info";
pub const DAO_CONTRACT_DB_DAO_BULLAS: &str = "dao_bullas";
pub const DAO_CONTRACT_DB_DAO_MERKLE_ROOTS: &str = "dao_roots";
pub const DAO_CONTRACT_DB_PROPOSAL_BULLAS: &str = "dao_proposals";
pub const DAO_CONTRACT_DB_VOTE_NULLIFIERS: &str = "dao_vote_nullifiers";
// These are keys inside the info tree
pub const DAO_CONTRACT_KEY_DB_VERSION: &[u8] = b"db_version";
pub const DAO_CONTRACT_KEY_DAO_MERKLE_TREE: &[u8] = b"dao_merkle_tree";
pub const DAO_CONTRACT_KEY_LATEST_DAO_ROOT: &[u8] = b"dao_last_root";
/// zkas dao mint circuit namespace
pub const DAO_CONTRACT_ZKAS_DAO_MINT_NS: &str = "Mint";
/// zkas dao vote input circuit namespace
pub const DAO_CONTRACT_ZKAS_DAO_VOTE_INPUT_NS: &str = "VoteInput";
/// zkas dao vote main circuit namespace
pub const DAO_CONTRACT_ZKAS_DAO_VOTE_MAIN_NS: &str = "VoteMain";
/// zkas dao propose input circuit namespace
pub const DAO_CONTRACT_ZKAS_DAO_PROPOSE_INPUT_NS: &str = "ProposeInput";
/// zkas dao propose main circuit namespace
pub const DAO_CONTRACT_ZKAS_DAO_PROPOSE_MAIN_NS: &str = "ProposeMain";
/// zkas dao exec circuit namespace
pub const DAO_CONTRACT_ZKAS_DAO_EXEC_NS: &str = "Exec";
/// zkas dao auth money_transfer circuit namespace
pub const DAO_CONTRACT_ZKAS_DAO_AUTH_MONEY_TRANSFER_NS: &str = "AuthMoneyTransfer";
/// zkas dao auth money_transfer encrypted coin circuit namespace
pub const DAO_CONTRACT_ZKAS_DAO_AUTH_MONEY_TRANSFER_ENC_COIN_NS: &str = "AuthMoneyTransferEncCoin";
/// Not allowed to make proposals using snapshots with block heights older than this depth
pub const PROPOSAL_SNAPSHOT_CUTOFF_LIMIT: u32 = 100;
// ANCHOR: dao-blockwindow
const _SECS_IN_HOUR: u64 = 60 * 60;
const _WINDOW_TIME_HR: u64 = 4;
// Precalculating the const for better performance
// WINDOW_TIME = WINDOW_TIME_HR * SECS_IN_HOUR
const WINDOW_TIME: u64 = 14400;
/// Blockwindow from block height and target time. Used for time limit on DAO proposals.
pub fn blockwindow(height: u32, target: u32) -> u64 {
let timestamp_secs = (height as u64) * (target as u64);
timestamp_secs / WINDOW_TIME
}
// ANCHOR_END: dao-blockwindow