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// This file is part of the SORA network and Polkaswap app.

// Copyright (c) 2020, 2021, Polka Biome Ltd. All rights reserved.
// SPDX-License-Identifier: BSD-4-Clause

// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:

// Redistributions of source code must retain the above copyright notice, this list
// of conditions and the following disclaimer.
// Redistributions in binary form must reproduce the above copyright notice, this
// list of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// All advertising materials mentioning features or use of this software must display
// the following acknowledgement: This product includes software developed by Polka Biome
// Ltd., SORA, and Polkaswap.
//
// Neither the name of the Polka Biome Ltd. nor the names of its contributors may be used
// to endorse or promote products derived from this software without specific prior written permission.

// THIS SOFTWARE IS PROVIDED BY Polka Biome Ltd. AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Polka Biome Ltd. BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
// USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

pub mod time {
    /// An index to a block.
    type BlockNumber = u32;

    /// Type used for expressing timestamp.
    pub type Moment = u64;

    /// Since BABE is probabilistic this is the average expected block time that
    /// we are targetting. Blocks will be produced at a minimum duration defined
    /// by `SLOT_DURATION`, but some slots will not be allocated to any
    /// authority and hence no block will be produced. We expect to have this
    /// block time on average following the defined slot duration and the value
    /// of `c` configured for BABE (where `1 - c` represents the probability of
    /// a slot being empty).
    /// This value is only used indirectly to define the unit constants below
    /// that are expressed in blocks. The rest of the code should use
    /// `SLOT_DURATION` instead (like the Timestamp pallet for calculating the
    /// minimum period).
    ///
    /// If using BABE with secondary slots (default) then all of the slots will
    /// always be assigned, in which case `MILLISECS_PER_BLOCK` and
    /// `SLOT_DURATION` should have the same value.
    ///
    /// <https://research.web3.foundation/en/latest/polkadot/block-production/Babe.html#-6.-practical-results>
    pub const MILLISECS_PER_BLOCK: Moment = 6000;
    pub const SECS_PER_BLOCK: Moment = MILLISECS_PER_BLOCK / 1000;

    pub const SLOT_DURATION: Moment = MILLISECS_PER_BLOCK;

    // 1 in 4 blocks (on average, not counting collisions) will be primary BABE blocks.
    pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);

    pub const EPOCH_DURATION_IN_BLOCKS: BlockNumber = 1 * HOURS;

    // These time units are defined in number of blocks.
    pub const MINUTES: BlockNumber = 60 / (SECS_PER_BLOCK as BlockNumber);
    pub const HOURS: BlockNumber = MINUTES * 60;
    pub const DAYS: BlockNumber = HOURS * 24;
}

pub mod currency {
    use common::Balance;

    pub const TRANSACTION_BYTE_FEE: Balance = 0;

    pub const UNITS: Balance = 1_000_000_000_000_000_000;
    pub const CENTS: Balance = UNITS / 30_000;
    pub const GRAND: Balance = CENTS * 100_000;
    pub const MILLICENTS: Balance = CENTS / 1_000;

    pub const fn deposit(items: u32, bytes: u32) -> Balance {
        items as Balance * 2_000 * CENTS + (bytes as Balance) * 100 * MILLICENTS
    }
}

// 1 in 4 blocks (on average, not counting collisions) will be primary babe blocks.
pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);

pub const BABE_GENESIS_EPOCH_CONFIG: sp_consensus_babe::BabeEpochConfiguration =
    sp_consensus_babe::BabeEpochConfiguration {
        c: PRIMARY_PROBABILITY,
        allowed_slots: sp_consensus_babe::AllowedSlots::PrimaryAndSecondaryVRFSlots,
    };

pub mod rewards {
    use sp_runtime::Percent;

    pub const VAL_BURN_PERCENT: Percent = Percent::from_percent(3);
    pub const PSWAP_BURN_PERCENT: Percent = Percent::from_percent(3);
}

pub const NORMAL_DISPATCH_PRIORITY: u64 = 1000;