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// Copyright (C) Moondance Labs Ltd.
// This file is part of Tanssi.
// Tanssi is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Tanssi 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Tanssi. If not, see <http://www.gnu.org/licenses/>
//! Runtime API for CollatorAssignment pallet. Can be used by collators to check
//! which parachain will they be collating, as well as the current assignment of
//! collators to parachains and parachains to collators.
#![cfg_attr(not(feature = "std"), no_std)]
use scale_info::prelude::vec::Vec;
sp_api::decl_runtime_apis! {
pub trait CollatorAssignmentApi<AccountId, ParaId> where
AccountId: parity_scale_codec::Codec,
ParaId: parity_scale_codec::Codec,
{
/// Return the parachain that the given `AccountId` is collating for.
/// Returns `None` if the `AccountId` is not collating.
fn current_collator_parachain_assignment(account: AccountId) -> Option<ParaId>;
/// Return the parachain that the given `AccountId` will be collating for
/// in the next session change.
/// Returns `None` if the `AccountId` will not be collating.
fn future_collator_parachain_assignment(account: AccountId) -> Option<ParaId>;
/// Return the list of collators of the given `ParaId`.
/// Returns `None` if the `ParaId` is not in the registrar.
fn parachain_collators(para_id: ParaId) -> Option<Vec<AccountId>>;
}