package proxy

import (
	"context"
	"fmt"
	"testing"

	"github.com/tendermint/tendermint/abci/example/kvstore"
	"github.com/tendermint/tendermint/abci/server"
	abci "github.com/tendermint/tendermint/abci/types"
	"github.com/tendermint/tendermint/libs/log"
	tmrand "github.com/tendermint/tendermint/libs/rand"
)

var SOCKET = "socket"

func TestEcho(t *testing.T) {
	sockPath := fmt.Sprintf("unix:///tmp/echo_%v.sock", tmrand.Str(6))
	clientCreator := NewRemoteClientCreator(sockPath, SOCKET, true)

	// Start server
	s := server.NewSocketServer(sockPath, kvstore.NewInMemoryApplication())
	s.SetLogger(log.TestingLogger().With("module", "abci-server"))
	if err := s.Start(); err != nil {
		t.Fatalf("Error starting socket server: %v", err.Error())
	}
	t.Cleanup(func() {
		if err := s.Stop(); err != nil {
			t.Error(err)
		}
	})

	// Start client
	cli, err := clientCreator.NewABCIClient()
	if err != nil {
		t.Fatalf("Error creating ABCI client: %v", err.Error())
	}
	cli.SetLogger(log.TestingLogger().With("module", "abci-client"))
	if err := cli.Start(); err != nil {
		t.Fatalf("Error starting ABCI client: %v", err.Error())
	}

	proxy := NewAppConnMempool(cli, NopMetrics())
	t.Log("Connected")

	for i := 0; i < 1000; i++ {
		_, err = proxy.CheckTx(context.Background(), &abci.RequestCheckTx{Tx: []byte(fmt.Sprintf("echo-%v", i))})
		if err != nil {
			t.Fatal(err)
		}
	}
	if err := proxy.Flush(context.Background()); err != nil {
		t.Error(err)
	}
}

func BenchmarkEcho(b *testing.B) {
	b.StopTimer() // Initialize
	sockPath := fmt.Sprintf("unix:///tmp/echo_%v.sock", tmrand.Str(6))
	clientCreator := NewRemoteClientCreator(sockPath, SOCKET, true)

	// Start server
	s := server.NewSocketServer(sockPath, kvstore.NewInMemoryApplication())
	s.SetLogger(log.TestingLogger().With("module", "abci-server"))
	if err := s.Start(); err != nil {
		b.Fatalf("Error starting socket server: %v", err.Error())
	}
	b.Cleanup(func() {
		if err := s.Stop(); err != nil {
			b.Error(err)
		}
	})

	// Start client
	cli, err := clientCreator.NewABCIClient()
	if err != nil {
		b.Fatalf("Error creating ABCI client: %v", err.Error())
	}
	cli.SetLogger(log.TestingLogger().With("module", "abci-client"))
	if err := cli.Start(); err != nil {
		b.Fatalf("Error starting ABCI client: %v", err.Error())
	}

	proxy := NewAppConnMempool(cli, NopMetrics())
	b.Log("Connected")
	b.StartTimer() // Start benchmarking tests

	for i := 0; i < b.N; i++ {
		_, err = proxy.CheckTx(context.Background(), &abci.RequestCheckTx{Tx: []byte("hello")})
		if err != nil {
			b.Error(err)
		}
	}
	if err := proxy.Flush(context.Background()); err != nil {
		b.Error(err)
	}

	b.StopTimer()
}