// Copyright 2021 Axiom-Team
//
// This file is part of Substrate-Libre-Currency.
//
// Substrate-Libre-Currency is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, version 3 of the License.
//
// Substrate-Libre-Currency 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with Substrate-Libre-Currency. If not, see <https://www.gnu.org/licenses/>.

use super::AccountId;
use frame_support::pallet_prelude::*;
use scale_info::TypeInfo;
#[cfg(feature = "std")]
use serde::{Deserialize, Serialize};

#[macro_export]
macro_rules! declare_session_keys {
    {} => {
        pub mod opaque {
            use super::*;

            impl_opaque_keys! {
                pub struct SessionKeys {
                    pub grandpa: Grandpa,
                    pub babe: Babe,
                    pub im_online: ImOnline,
                    pub authority_discovery: AuthorityDiscovery,
                }
            }

            #[derive(Clone, codec::Decode, Debug, codec::Encode, Eq, PartialEq)]
            pub struct SessionKeysWrapper(pub SessionKeys);

            impl From<SessionKeysWrapper> for SessionKeys {
                fn from(keys_wrapper: SessionKeysWrapper) -> SessionKeys {
                    keys_wrapper.0
                }
            }

            impl scale_info::TypeInfo for SessionKeysWrapper {
                type Identity = [u8; 128];

                fn type_info() -> scale_info::Type {
                    Self::Identity::type_info()
                }
            }
        }
    }
}

#[cfg_attr(feature = "std", derive(Deserialize, Serialize))]
#[derive(Clone, Encode, Decode, Default, Eq, PartialEq, RuntimeDebug, TypeInfo, MaxEncodedLen)]
pub struct IdtyData {
    pub first_eligible_ud: pallet_universal_dividend::FirstEligibleUd,
}

#[cfg(feature = "std")]
impl IdtyData {
    pub fn new() -> Self {
        Self {
            first_eligible_ud: pallet_universal_dividend::FirstEligibleUd::min(),
        }
    }
}

impl From<IdtyData> for pallet_universal_dividend::FirstEligibleUd {
    fn from(idty_data: IdtyData) -> Self {
        idty_data.first_eligible_ud
    }
}

pub struct NewOwnerKeySigner(sp_core::sr25519::Public);

impl sp_runtime::traits::IdentifyAccount for NewOwnerKeySigner {
    type AccountId = crate::AccountId;
    fn into_account(self) -> crate::AccountId {
        <[u8; 32]>::from(self.0).into()
    }
}

#[derive(Clone, Encode, Decode, Eq, PartialEq, RuntimeDebug, TypeInfo)]
pub struct NewOwnerKeySignature(sp_core::sr25519::Signature);

impl sp_runtime::traits::Verify for NewOwnerKeySignature {
    type Signer = NewOwnerKeySigner;
    fn verify<L: sp_runtime::traits::Lazy<[u8]>>(&self, msg: L, signer: &crate::AccountId) -> bool {
        use sp_core::crypto::ByteArray as _;
        match sp_core::sr25519::Public::from_slice(signer.as_ref()) {
            Ok(signer) => self.0.verify(msg, &signer),
            Err(()) => false,
        }
    }
}

#[cfg_attr(feature = "std", derive(Deserialize, Serialize))]
#[derive(Clone, Encode, Decode, Eq, PartialEq, RuntimeDebug, TypeInfo)]
pub struct SmithsMembershipMetaData<SessionKeysWrapper> {
    pub owner_key: AccountId,
    pub p2p_endpoint: sp_runtime::RuntimeString,
    pub session_keys: SessionKeysWrapper,
}
impl<SessionKeysWrapper> Default for SmithsMembershipMetaData<SessionKeysWrapper> {
    fn default() -> Self {
        unreachable!()
    }
}
impl<SessionKeysWrapper> sp_membership::traits::Validate<AccountId>
    for SmithsMembershipMetaData<SessionKeysWrapper>
{
    fn validate(&self, who: &AccountId) -> bool {
        &self.owner_key == who
    }
}

#[cfg_attr(feature = "std", derive(Deserialize, Serialize))]
#[derive(
    Encode, Decode, Default, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, RuntimeDebug, TypeInfo,
)]
pub struct ValidatorFullIdentification;