package config

import (
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestDefaultConfigValues(t *testing.T) {
	cfg := DefaultConfig()
	require.NotNil(t, cfg)
	assert.Equal(t, "tcp://:6995", cfg.Addr)
	assert.Equal(t, "tcp", cfg.Network)
	assert.Equal(t, 4096, cfg.ReadBufferSize)
	assert.Equal(t, 4096, cfg.WriteBufferSize)
	assert.Equal(t, 10000, cfg.MaxConnections)
	assert.Equal(t, "nnet", cfg.ApplicationProtocol)
	assert.NotNil(t, cfg.Logger)
	assert.NotNil(t, cfg.Metrics)
	assert.NotNil(t, cfg.Session)
	assert.NotNil(t, cfg.Codec)
}

func TestValidate_AddrRequired(t *testing.T) {
	cfg := &Config{Addr: ""}
	err := cfg.Validate()
	require.Error(t, err)
}

func TestValidate_FillsDefaults(t *testing.T) {
	cfg := &Config{
		Addr:            "tcp://:0",
		ReadBufferSize:  0,
		WriteBufferSize: -1,
		MaxConnections:  0,
		Network:         "",
	}
	err := cfg.Validate()
	require.NoError(t, err)
	assert.Equal(t, "tcp", cfg.Network)
	assert.Equal(t, 4096, cfg.ReadBufferSize)
	assert.Equal(t, 4096, cfg.WriteBufferSize)
	assert.Equal(t, 10000, cfg.MaxConnections)
}

func TestCodecConfig_Defaults(t *testing.T) {
	cfg := DefaultConfig()
	require.NotNil(t, cfg.Codec)
	assert.Equal(t, "binary", cfg.Codec.DefaultCodec)
	assert.False(t, cfg.Codec.EnableProtocolEncode)
}

func TestSessionConfig_Defaults(t *testing.T) {
	cfg := DefaultConfig()
	require.NotNil(t, cfg.Session)
	assert.Equal(t, "memory", cfg.Session.Storage)
	assert.GreaterOrEqual(t, cfg.Session.Expiration, 1*time.Hour)
}