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// Copyright (C) Parity Technologies (UK) Ltd.
// This file is part of Polkadot.

// Polkadot 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.

// Polkadot 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 Polkadot.  If not, see <http://www.gnu.org/licenses/>.

//! Contains the V6 storage definition of the host configuration.

use crate::configuration::{Config, Pallet};
use alloc::vec::Vec;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::BlockNumberFor;

use polkadot_primitives::{AsyncBackingParams, Balance, ExecutorParams, SessionIndex};

#[derive(codec::Encode, codec::Decode, Debug, Clone)]
pub struct V6HostConfiguration<BlockNumber> {
	pub max_code_size: u32,
	pub max_head_data_size: u32,
	pub max_upward_queue_count: u32,
	pub max_upward_queue_size: u32,
	pub max_upward_message_size: u32,
	pub max_upward_message_num_per_candidate: u32,
	pub hrmp_max_message_num_per_candidate: u32,
	pub validation_upgrade_cooldown: BlockNumber,
	pub validation_upgrade_delay: BlockNumber,
	pub async_backing_params: AsyncBackingParams,
	pub max_pov_size: u32,
	pub max_downward_message_size: u32,
	pub hrmp_max_parachain_outbound_channels: u32,
	pub hrmp_max_parathread_outbound_channels: u32,
	pub hrmp_sender_deposit: Balance,
	pub hrmp_recipient_deposit: Balance,
	pub hrmp_channel_max_capacity: u32,
	pub hrmp_channel_max_total_size: u32,
	pub hrmp_max_parachain_inbound_channels: u32,
	pub hrmp_max_parathread_inbound_channels: u32,
	pub hrmp_channel_max_message_size: u32,
	pub executor_params: ExecutorParams,
	pub code_retention_period: BlockNumber,
	pub parathread_cores: u32,
	pub parathread_retries: u32,
	pub group_rotation_frequency: BlockNumber,
	pub chain_availability_period: BlockNumber,
	pub thread_availability_period: BlockNumber,
	pub scheduling_lookahead: u32,
	pub max_validators_per_core: Option<u32>,
	pub max_validators: Option<u32>,
	pub dispute_period: SessionIndex,
	pub dispute_post_conclusion_acceptance_period: BlockNumber,
	pub no_show_slots: u32,
	pub n_delay_tranches: u32,
	pub zeroth_delay_tranche_width: u32,
	pub needed_approvals: u32,
	pub relay_vrf_modulo_samples: u32,
	pub pvf_checking_enabled: bool,
	pub pvf_voting_ttl: SessionIndex,
	pub minimum_validation_upgrade_delay: BlockNumber,
}

impl<BlockNumber: Default + From<u32>> Default for V6HostConfiguration<BlockNumber> {
	fn default() -> Self {
		Self {
			async_backing_params: AsyncBackingParams {
				max_candidate_depth: 0,
				allowed_ancestry_len: 0,
			},
			group_rotation_frequency: 1u32.into(),
			chain_availability_period: 1u32.into(),
			thread_availability_period: 1u32.into(),
			no_show_slots: 1u32.into(),
			validation_upgrade_cooldown: Default::default(),
			validation_upgrade_delay: 2u32.into(),
			code_retention_period: Default::default(),
			max_code_size: Default::default(),
			max_pov_size: Default::default(),
			max_head_data_size: Default::default(),
			parathread_cores: Default::default(),
			parathread_retries: Default::default(),
			scheduling_lookahead: Default::default(),
			max_validators_per_core: Default::default(),
			max_validators: None,
			dispute_period: 6,
			dispute_post_conclusion_acceptance_period: 100.into(),
			n_delay_tranches: Default::default(),
			zeroth_delay_tranche_width: Default::default(),
			needed_approvals: Default::default(),
			relay_vrf_modulo_samples: Default::default(),
			max_upward_queue_count: Default::default(),
			max_upward_queue_size: Default::default(),
			max_downward_message_size: Default::default(),
			max_upward_message_size: Default::default(),
			max_upward_message_num_per_candidate: Default::default(),
			hrmp_sender_deposit: Default::default(),
			hrmp_recipient_deposit: Default::default(),
			hrmp_channel_max_capacity: Default::default(),
			hrmp_channel_max_total_size: Default::default(),
			hrmp_max_parachain_inbound_channels: Default::default(),
			hrmp_max_parathread_inbound_channels: Default::default(),
			hrmp_channel_max_message_size: Default::default(),
			hrmp_max_parachain_outbound_channels: Default::default(),
			hrmp_max_parathread_outbound_channels: Default::default(),
			hrmp_max_message_num_per_candidate: Default::default(),
			pvf_checking_enabled: false,
			pvf_voting_ttl: 2u32.into(),
			minimum_validation_upgrade_delay: 2.into(),
			executor_params: Default::default(),
		}
	}
}

mod v6 {
	use super::*;

	#[frame_support::storage_alias]
	pub(crate) type ActiveConfig<T: Config> =
		StorageValue<Pallet<T>, V6HostConfiguration<BlockNumberFor<T>>, OptionQuery>;

	#[frame_support::storage_alias]
	pub(crate) type PendingConfigs<T: Config> = StorageValue<
		Pallet<T>,
		Vec<(SessionIndex, V6HostConfiguration<BlockNumberFor<T>>)>,
		OptionQuery,
	>;
}