chain_spec.rs

// Polimec Blockchain – https://www.polimec.org/
// Copyright (C) Polimec 2022. All rights reserved.

// The Polimec Blockchain 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.

// The Polimec Blockchain 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 this program.  If not, see <https://www.gnu.org/licenses/>.

// If you feel like getting in touch with us, you can do so at info@polimec.org

use cumulus_primitives_core::ParaId;
use polimec_runtime::{AccountId, Signature};
use polkadot_primitives::v8::LOWEST_PUBLIC_ID;
use sc_chain_spec::{ChainSpecExtension, ChainSpecGroup};
use sc_service::Properties;
use serde::{Deserialize, Serialize};
use sp_core::{Pair, Public};
use sp_runtime::traits::{IdentifyAccount, Verify};

pub mod common;
pub mod polimec_paseo;

const DEFAULT_PARA_ID: ParaId = LOWEST_PUBLIC_ID;

/// Helper function to generate a crypto pair from seed
pub fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
	TPublic::Pair::from_string(&format!("//{}", seed), None).expect("static values are valid; qed").public()
}

/// The extensions for the [`ChainSpec`].
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, ChainSpecGroup, ChainSpecExtension)]
pub struct Extensions {
	/// The relay chain of the Parachain.
	#[serde(alias = "relayChain", alias = "RelayChain")]
	pub relay_chain: String,
	/// The id of the Parachain.
	#[serde(alias = "paraId", alias = "ParaId")]
	pub para_id: u32,
}

impl Extensions {
	/// Try to get the extension from the given `ChainSpec`.
	pub fn try_get(chain_spec: &dyn sc_service::ChainSpec) -> Option<&Self> {
		sc_chain_spec::get_extension(chain_spec.extensions())
	}
}

/// Generic chain spec for all the Polimec runtimes
pub type GenericChainSpec = sc_service::GenericChainSpec<Extensions>;

type AccountPublic = <Signature as Verify>::Signer;

/// Helper function to generate an account ID from seed
pub fn get_account_id_from_seed<TPublic: Public>(seed: &str) -> AccountId
where
	AccountPublic: From<<TPublic::Pair as Pair>::Public>,
{
	AccountPublic::from(get_from_seed::<TPublic>(seed)).into_account()
}

pub fn get_properties(symbol: &str, decimals: u32, ss58format: u32) -> Properties {
	let mut properties = sc_chain_spec::Properties::new();
	properties.insert("tokenSymbol".into(), symbol.into());
	properties.insert("tokenDecimals".into(), decimals.into());
	properties.insert("ss58Format".into(), ss58format.into());

	properties
}