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//! define how to rule over the blockchain
//!

mod parameters;
mod treasury;

pub use self::{
    parameters::{
        ParametersGovernance, ParametersGovernanceAction, ParametersGovernanceActionType,
    },
    treasury::{TreasuryGovernance, TreasuryGovernanceAction, TreasuryGovernanceActionType},
};
use crate::{
    rewards::Ratio,
    vote::{Choice, Options},
};
use std::num::NonZeroU64;

#[derive(Clone, Default, Eq, PartialEq)]
pub struct Governance {
    pub treasury: treasury::TreasuryGovernance,
    pub parameters: parameters::ParametersGovernance,
}

#[derive(Debug, Clone, Eq, PartialEq)]
pub struct GovernanceAcceptanceCriteria {
    pub minimum_stake_participation: Option<Ratio>,
    pub minimum_approval: Option<Ratio>,
    pub blank: Choice,
    pub favorable: Choice,
    pub rejection: Choice,
    pub options: Options,
}

impl Default for GovernanceAcceptanceCriteria {
    fn default() -> Self {
        const CENT: NonZeroU64 = unsafe { NonZeroU64::new_unchecked(100) };

        Self {
            minimum_stake_participation: Some(Ratio {
                numerator: 30,
                denominator: CENT,
            }),
            minimum_approval: Some(Ratio {
                numerator: 50,
                denominator: CENT,
            }),
            blank: Choice::new(0),
            favorable: Choice::new(1),
            rejection: Choice::new(2),
            options: Options::new_length(3).expect("3 valid choices possible"),
        }
    }
}