package mempool

import (
	"context"

	abciclient "github.com/tendermint/tendermint/abci/client"
	"github.com/tendermint/tendermint/abci/example/kvstore"
	"github.com/tendermint/tendermint/config"
	"github.com/tendermint/tendermint/internal/mempool"
	"github.com/tendermint/tendermint/libs/log"
)

var mp *mempool.TxMempool
var getMp func() mempool.Mempool

func init() {
	app := kvstore.NewApplication()
	cc := abciclient.NewLocalCreator(app)
	appConnMem, _ := cc(log.NewNopLogger())
	err := appConnMem.Start(context.TODO())
	if err != nil {
		panic(err)
	}

	cfg := config.DefaultMempoolConfig()
	cfg.Broadcast = false

	getMp = func() mempool.Mempool {
		if mp == nil {
			mp = mempool.NewTxMempool(
				log.NewNopLogger(),
				cfg,
				appConnMem,
				0,
			)

		}
		return mp
	}
}

func Fuzz(data []byte) int {
	err := getMp().CheckTx(context.Background(), data, nil, mempool.TxInfo{})
	if err != nil {
		return 0
	}

	return 1
}