// Go Substrate RPC Client (GSRPC) provides APIs and types around Polkadot and any Substrate-based chain RPC calls
//
// Copyright 2021 Snowfork
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//go:generate mockery --name Beefy --filename beefy.go

package beefy

import (
	"github.com/centrifuge/go-substrate-rpc-client/v4/client"
	"github.com/centrifuge/go-substrate-rpc-client/v4/types"
)

type Beefy interface {
	GetFinalizedHead() (types.Hash, error)
	SubscribeJustifications() (*JustificationsSubscription, error)
}

// Beefy exposes methods for retrieval of chain data
type beefy struct {
	client client.Client
}

// NewBeefy creates a new Chain struct
func NewBeefy(cl client.Client) Beefy {
	return &beefy{cl}
}
