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use alloc::vec::Vec;
use serde::{Deserialize, Serialize};
use crate::{
account::{ActionType, SetThresholdFailure, Weight, WEIGHT_SERIALIZED_LENGTH},
bytesrepr::{self, Error, FromBytes, ToBytes},
};
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct ActionThresholds {
deployment: Weight,
key_management: Weight,
}
impl ActionThresholds {
pub fn new(
deployment: Weight,
key_management: Weight,
) -> Result<ActionThresholds, SetThresholdFailure> {
if deployment > key_management {
return Err(SetThresholdFailure::DeploymentThreshold);
}
Ok(ActionThresholds {
deployment,
key_management,
})
}
pub fn set_deployment_threshold(
&mut self,
new_threshold: Weight,
) -> Result<(), SetThresholdFailure> {
if new_threshold > self.key_management {
Err(SetThresholdFailure::DeploymentThreshold)
} else {
self.deployment = new_threshold;
Ok(())
}
}
pub fn set_key_management_threshold(
&mut self,
new_threshold: Weight,
) -> Result<(), SetThresholdFailure> {
if self.deployment > new_threshold {
Err(SetThresholdFailure::KeyManagementThreshold)
} else {
self.key_management = new_threshold;
Ok(())
}
}
pub fn deployment(&self) -> &Weight {
&self.deployment
}
pub fn key_management(&self) -> &Weight {
&self.key_management
}
pub fn set_threshold(
&mut self,
action_type: ActionType,
new_threshold: Weight,
) -> Result<(), SetThresholdFailure> {
match action_type {
ActionType::Deployment => self.set_deployment_threshold(new_threshold),
ActionType::KeyManagement => self.set_key_management_threshold(new_threshold),
}
}
}
impl Default for ActionThresholds {
fn default() -> Self {
ActionThresholds {
deployment: Weight::new(1),
key_management: Weight::new(1),
}
}
}
impl ToBytes for ActionThresholds {
fn to_bytes(&self) -> Result<Vec<u8>, Error> {
let mut result = bytesrepr::unchecked_allocate_buffer(self);
result.append(&mut self.deployment.to_bytes()?);
result.append(&mut self.key_management.to_bytes()?);
Ok(result)
}
fn serialized_length(&self) -> usize {
2 * WEIGHT_SERIALIZED_LENGTH
}
}
impl FromBytes for ActionThresholds {
fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), Error> {
let (deployment, rem) = Weight::from_bytes(bytes)?;
let (key_management, rem) = Weight::from_bytes(rem)?;
let ret = ActionThresholds {
deployment,
key_management,
};
Ok((ret, rem))
}
}
#[doc(hidden)]
#[cfg(any(feature = "gens", test))]
pub mod gens {
use proptest::prelude::*;
use super::ActionThresholds;
pub fn action_thresholds_arb() -> impl Strategy<Value = ActionThresholds> {
Just(Default::default())
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn should_create_new_action_thresholds() {
let action_thresholds = ActionThresholds::new(Weight::new(1), Weight::new(42)).unwrap();
assert_eq!(*action_thresholds.deployment(), Weight::new(1));
assert_eq!(*action_thresholds.key_management(), Weight::new(42));
}
#[test]
fn should_not_create_action_thresholds_with_invalid_deployment_threshold() {
assert!(ActionThresholds::new(Weight::new(5), Weight::new(1)).is_err());
}
#[test]
fn serialization_roundtrip() {
let action_thresholds = ActionThresholds::new(Weight::new(1), Weight::new(42)).unwrap();
bytesrepr::test_serialization_roundtrip(&action_thresholds);
}
}