// 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/>

#![cfg_attr(not(feature = "std"), no_std)]

pub mod weights;

pub const TANSSI_GENESIS_HASH: [u8; 32] =

    hex_literal::hex!["dd6d086f75ec041b66e20c4186d327b23c8af244c534a2418de6574e8c041a60"];

/// Money matters.

pub mod currency {

    use primitives::Balance;

    /// The existential deposit.

    pub const EXISTENTIAL_DEPOSIT: Balance = 1 * CENTS;

    // Provide a common factor between runtimes based on a supply of 10_000_000 tokens.

    pub const SUPPLY_FACTOR: Balance = 1;

    pub const UNITS: Balance = 1_000_000_000_000;

    pub const DECIMALS: u32 = 12;

    pub const CENTS: Balance = UNITS / 30_000;

    pub const GRAND: Balance = CENTS * 100_000;

    pub const MILLICENTS: Balance = CENTS / 1_000;

    pub const MICROUNITS: Balance = 1_000_000;

    pub const MILLIUNITS: Balance = 1_000_000_000;

    pub const STORAGE_BYTE_FEE: Balance = 100 * MICROUNITS * SUPPLY_FACTOR;

    pub const STORAGE_ITEM_FEE: Balance = 100 * MILLIUNITS * SUPPLY_FACTOR;

}

/// Time and blocks.

pub mod time {

    use primitives::{BlockNumber, Moment};

    pub const MILLISECS_PER_BLOCK: Moment = 6000;

    pub const SLOT_DURATION: Moment = MILLISECS_PER_BLOCK;

    tp_traits::prod_or_fast_parameter_types! {

        pub const EpochDurationInBlocks: BlockNumber = { prod: 6 * HOURS, fast: 1 * MINUTES };

    }

    // These time units are defined in number of blocks.

    pub const MINUTES: BlockNumber = 60_000 / (MILLISECS_PER_BLOCK as BlockNumber);

    pub const HOURS: BlockNumber = MINUTES * 60;

    pub const DAYS: BlockNumber = HOURS * 24;

    pub const WEEKS: BlockNumber = DAYS * 7;

    // 1 in 4 blocks (on average, not counting collisions) will be primary babe blocks.

    // The choice of is done in accordance to the slot duration and expected target

    // block time, for safely resisting network delays of maximum two seconds.

    // <https://research.web3.foundation/en/latest/polkadot/BABE/Babe/#6-practical-results>

    pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);

}

pub mod snowbridge {

    use {

        frame_support::parameter_types,

        xcm::prelude::{Location, NetworkId},

    };

    parameter_types! {

            /// Network and location for the Ethereum chain. On Starlight, the Ethereum chain bridged

            /// to is the Ethereum mainnet, with chain ID 1.

            /// <https://chainlist.org/chain/1>

            /// <https://ethereum.org/en/developers/docs/apis/json-rpc/#net_version>

            pub EthereumNetwork: NetworkId = NetworkId::Ethereum { chain_id: 1 };

            pub EthereumLocation: Location = Location::new(1, EthereumNetwork::get());

    }

    #[cfg(feature = "runtime-benchmarks")]

    parameter_types! {

            // We need a different ethereum location for benchmarks as the ethereum system pallet

            // is written for benchmarks from para

            pub EthereumLocationForParaIdBenchmarks: Location = Location::new(2, EthereumNetwork::get());

    }

}

/// Fee-related.

pub mod fee {

    pub use sp_runtime::Perbill;

    use {

        crate::weights::ExtrinsicBaseWeight,

        frame_support::weights::{

            WeightToFeeCoefficient, WeightToFeeCoefficients, WeightToFeePolynomial,

        },

        primitives::Balance,

        smallvec::smallvec,

    };

    /// The block saturation level. Fees will be updates based on this value.

    pub const TARGET_BLOCK_FULLNESS: Perbill = Perbill::from_percent(25);

    /// Handles converting a weight scalar to a fee value, based on the scale and granularity of the

    /// node's balance type.

    ///

    /// This should typically create a mapping between the following ranges:

    ///   - [0, `frame_system::MaximumBlockWeight`]

    ///   - [Balance::min, Balance::max]

    ///

    /// Yet, it can be used for any other sort of change to weight-fee. Some examples being:

    ///   - Setting it to `0` will essentially disable the weight fee.

    ///   - Setting it to `1` will cause the literal `#[weight = x]` values to be charged.

    pub struct WeightToFee;

    impl WeightToFeePolynomial for WeightToFee {

        type Balance = Balance;

            // in Starlight, extrinsic base weight (smallest non-zero weight) is mapped to 1/10 CENT:

    }

}

/// System Parachains.

pub mod system_parachain {

    use {primitives::Id, xcm_builder::IsChildSystemParachain};

    /// Network's Asset Hub parachain ID.

    pub const ASSET_HUB_ID: u32 = 1000;

    /// Contracts parachain ID.

    pub const CONTRACTS_ID: u32 = 1002;

    /// Encointer parachain ID.

    pub const ENCOINTER_ID: u32 = 1003;

    /// People parachain ID.

    pub const PEOPLE_ID: u32 = 1004;

    /// BridgeHub parachain ID.

    pub const BRIDGE_HUB_ID: u32 = 1013;

    /// Brokerage parachain ID.

    pub const BROKER_ID: u32 = 1005;

    /// All system parachains of Starlight.

    pub type SystemParachains = IsChildSystemParachain<Id>;

}

/// Starlight Treasury pallet instance.

pub const TREASURY_PALLET_ID: u8 = 40;

#[cfg(test)]

mod tests {

    use {

        super::{

            currency::{CENTS, MILLICENTS},

            fee::WeightToFee,

        },

        crate::weights::ExtrinsicBaseWeight,

        frame_support::weights::WeightToFee as WeightToFeeT,

        runtime_common::MAXIMUM_BLOCK_WEIGHT,

    };

    #[test]

    // Test that the fee for `MAXIMUM_BLOCK_WEIGHT` of weight has sane bounds.

        // A full block should cost between 1,000 and 10,000 CENTS.

    #[test]

    // This function tests that the fee for `ExtrinsicBaseWeight` of weight is correct

        // `ExtrinsicBaseWeight` should cost 1/10 of a CENT

}