#![cfg(test)]

pub use super::members::{self, Trait, DEFAULT_PAID_TERM_ID};
pub use crate::currency::GovernanceCurrency;
pub use srml_support::traits::Currency;
pub use system;

pub use primitives::{Blake2Hasher, H256};
pub use runtime_primitives::{
    testing::{Digest, DigestItem, Header, UintAuthorityId},
    traits::{BlakeTwo256, Convert, IdentityLookup, OnFinalize},
    weights::Weight,
    BuildStorage, Perbill,
};

use srml_support::{impl_outer_origin, parameter_types};

impl_outer_origin! {
    pub enum Origin for Test {}
}

// Workaround for https://github.com/rust-lang/rust/issues/26925 . Remove when sorted.
#[derive(Clone, PartialEq, Eq, Debug)]
pub struct Test;
parameter_types! {
    pub const BlockHashCount: u64 = 250;
    pub const MaximumBlockWeight: u32 = 1024;
    pub const MaximumBlockLength: u32 = 2 * 1024;
    pub const AvailableBlockRatio: Perbill = Perbill::one();
    pub const MinimumPeriod: u64 = 5;
}

impl system::Trait for Test {
    type Origin = Origin;
    type Index = u64;
    type BlockNumber = u64;
    type Call = ();
    type Hash = H256;
    type Hashing = BlakeTwo256;
    type AccountId = u64;
    type Lookup = IdentityLookup<Self::AccountId>;
    type Header = Header;
    type Event = ();
    type BlockHashCount = BlockHashCount;
    type MaximumBlockWeight = MaximumBlockWeight;
    type MaximumBlockLength = MaximumBlockLength;
    type AvailableBlockRatio = AvailableBlockRatio;
    type Version = ();
}

impl timestamp::Trait for Test {
    type Moment = u64;
    type OnTimestampSet = ();
    type MinimumPeriod = MinimumPeriod;
}

parameter_types! {
    pub const ExistentialDeposit: u32 = 0;
    pub const TransferFee: u32 = 0;
    pub const CreationFee: u32 = 0;
    pub const TransactionBaseFee: u32 = 1;
    pub const TransactionByteFee: u32 = 0;
    pub const InitialMembersBalance: u64 = 2000;
}

impl balances::Trait for Test {
    /// The type for recording an account's balance.
    type Balance = u64;
    /// What to do if an account's free balance gets zeroed.
    type OnFreeBalanceZero = ();
    /// What to do if a new account is created.
    type OnNewAccount = ();
    /// The ubiquitous event type.
    type Event = ();

    type DustRemoval = ();
    type TransferPayment = ();
    type ExistentialDeposit = ExistentialDeposit;
    type TransferFee = TransferFee;
    type CreationFee = CreationFee;
}

impl GovernanceCurrency for Test {
    type Currency = balances::Module<Self>;
}

impl members::Trait for Test {
    type Event = ();
    type MemberId = u32;
    type PaidTermId = u32;
    type SubscriptionId = u32;
    type ActorId = u32;
    type InitialMembersBalance = InitialMembersBalance;
}

pub struct TestExternalitiesBuilder<T: Trait> {
    system_config: Option<system::GenesisConfig>,
    membership_config: Option<members::GenesisConfig<T>>,
}

impl<T: Trait> Default for TestExternalitiesBuilder<T> {
    fn default() -> Self {
        Self {
            system_config: None,
            membership_config: None,
        }
    }
}

impl<T: Trait> TestExternalitiesBuilder<T> {
    /*
    pub fn set_system_config(mut self, system_config: system::GenesisConfig) -> Self {
        self.system_config = Some(system_config);
        self
    }
    */
    pub fn set_membership_config(mut self, membership_config: members::GenesisConfig<T>) -> Self {
        self.membership_config = Some(membership_config);
        self
    }
    pub fn build(self) -> runtime_io::TestExternalities {
        // Add system
        let mut t = self
            .system_config
            .unwrap_or(system::GenesisConfig::default())
            .build_storage::<T>()
            .unwrap();

        // Add membership
        self.membership_config
            .unwrap_or(members::GenesisConfig::default())
            .assimilate_storage(&mut t)
            .unwrap();

        t.into()
    }
}

pub type Balances = balances::Module<Test>;
pub type Members = members::Module<Test>;