package v1

import (
	"fmt"
	"testing"
	"time"

	"github.com/stretchr/testify/require"
	"github.com/tendermint/tendermint/internal/mempool"
)

func TestTxStore_GetTxBySender(t *testing.T) {
	txs := NewTxStore()
	wtx := &WrappedTx{
		tx:        []byte("test_tx"),
		sender:    "foo",
		priority:  1,
		timestamp: time.Now(),
	}

	res := txs.GetTxBySender(wtx.sender)
	require.Nil(t, res)

	txs.SetTx(wtx)

	res = txs.GetTxBySender(wtx.sender)
	require.NotNil(t, res)
	require.Equal(t, wtx, res)
}

func TestTxStore_GetTxByHash(t *testing.T) {
	txs := NewTxStore()
	wtx := &WrappedTx{
		tx:        []byte("test_tx"),
		sender:    "foo",
		priority:  1,
		timestamp: time.Now(),
	}

	key := mempool.TxKey(wtx.tx)
	res := txs.GetTxByHash(key)
	require.Nil(t, res)

	txs.SetTx(wtx)

	res = txs.GetTxByHash(key)
	require.NotNil(t, res)
	require.Equal(t, wtx, res)
}

func TestTxStore_SetTx(t *testing.T) {
	txs := NewTxStore()
	wtx := &WrappedTx{
		tx:        []byte("test_tx"),
		priority:  1,
		timestamp: time.Now(),
	}

	key := mempool.TxKey(wtx.tx)
	txs.SetTx(wtx)

	res := txs.GetTxByHash(key)
	require.NotNil(t, res)
	require.Equal(t, wtx, res)

	wtx.sender = "foo"
	txs.SetTx(wtx)

	res = txs.GetTxByHash(key)
	require.NotNil(t, res)
	require.Equal(t, wtx, res)
}

func TestTxStore_GetOrSetPeerByTxHash(t *testing.T) {
	txs := NewTxStore()
	wtx := &WrappedTx{
		tx:        []byte("test_tx"),
		priority:  1,
		timestamp: time.Now(),
	}

	key := mempool.TxKey(wtx.tx)
	txs.SetTx(wtx)

	res, ok := txs.GetOrSetPeerByTxHash(mempool.TxKey([]byte("test_tx_2")), 15)
	require.Nil(t, res)
	require.False(t, ok)

	res, ok = txs.GetOrSetPeerByTxHash(key, 15)
	require.NotNil(t, res)
	require.False(t, ok)

	res, ok = txs.GetOrSetPeerByTxHash(key, 15)
	require.NotNil(t, res)
	require.True(t, ok)

	require.True(t, txs.TxHasPeer(key, 15))
	require.False(t, txs.TxHasPeer(key, 16))
}

func TestTxStore_RemoveTx(t *testing.T) {
	txs := NewTxStore()
	wtx := &WrappedTx{
		tx:        []byte("test_tx"),
		priority:  1,
		timestamp: time.Now(),
	}

	txs.SetTx(wtx)

	key := mempool.TxKey(wtx.tx)
	res := txs.GetTxByHash(key)
	require.NotNil(t, res)

	txs.RemoveTx(res)

	res = txs.GetTxByHash(key)
	require.Nil(t, res)
}

func TestTxStore_Size(t *testing.T) {
	txStore := NewTxStore()
	numTxs := 1000

	for i := 0; i < numTxs; i++ {
		txStore.SetTx(&WrappedTx{
			tx:        []byte(fmt.Sprintf("test_tx_%d", i)),
			priority:  int64(i),
			timestamp: time.Now(),
		})
	}

	require.Equal(t, numTxs, txStore.Size())
}