package pebble

import (
	"testing"
	"time"

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

var testStore = New(Config{
	Path:         "test.db",
	WriteOptions: nil,
})

func Test_Pebble_Set(t *testing.T) {
	var (
		key = "john"
		val = []byte("doe")
	)

	err := testStore.Set(key, val, 0)
	require.NoError(t, err)
}

func Test_Pebble_Set_Override(t *testing.T) {
	var (
		key = "john"
		val = []byte("doe")
	)

	err := testStore.Set(key, val, 0)
	require.NoError(t, err)

	err = testStore.Set(key, val, 0)
	require.NoError(t, err)
}

func Test_Pebble_Get(t *testing.T) {
	var (
		key = "john"
		val = []byte("doe")
	)

	err := testStore.Set(key, val, 0)
	require.NoError(t, err)

	result, err := testStore.Get(key)
	require.NoError(t, err)
	require.Equal(t, val, result)
}

func Test_Pebble_Set_Expiration(t *testing.T) {
	var (
		key = "john"
		val = []byte("doe")
		exp = 1 * time.Second
	)

	err := testStore.Set(key, val, exp)
	require.NoError(t, err)

	time.Sleep(1100 * time.Millisecond)
}

func Test_Pebble_Delete(t *testing.T) {
	var (
		key = "john"
		val = []byte("doe")
	)

	err := testStore.Set(key, val, 20)
	require.NoError(t, err)

	err = testStore.Delete(key)
	require.NoError(t, err)

	result, err := testStore.Get(key)
	require.Equal(t, "pebble: not found", err.Error())
	require.Zero(t, len(result))
}

func Test_Pebble_Reset(t *testing.T) {
	val := []byte("doe")

	err := testStore.Set("john1", val, 0)
	require.NoError(t, err)

	err = testStore.Set("john2", val, 0)
	require.NoError(t, err)

	err = testStore.Reset()
	require.NoError(t, err)

	_, err = testStore.Get("john1")
	require.NoError(t, err)

	_, err = testStore.Get("john2")
	require.NoError(t, err)
}

func Test_Pebble_Close(t *testing.T) {
	require.Nil(t, testStore.Close())
}

func Test_Pebble_Conn(t *testing.T) {
	require.True(t, testStore.Conn() != nil)
}

func Benchmark_Pebble_Set(b *testing.B) {
	b.ReportAllocs()
	b.ResetTimer()

	var err error
	for i := 0; i < b.N; i++ {
		err = testStore.Set("john", []byte("doe"), 0)
	}

	require.NoError(b, err)
}

func Benchmark_Pebble_Get(b *testing.B) {
	err := testStore.Set("john", []byte("doe"), 0)
	require.NoError(b, err)

	b.ReportAllocs()
	b.ResetTimer()

	for i := 0; i < b.N; i++ {
		_, err = testStore.Get("john")
	}

	require.NoError(b, err)
}

func Benchmark_Pebble_SetAndDelete(b *testing.B) {
	b.ReportAllocs()
	b.ResetTimer()

	var err error
	for i := 0; i < b.N; i++ {
		_ = testStore.Set("john", []byte("doe"), 0)
		err = testStore.Delete("john")
	}

	require.NoError(b, err)
}