package main

import (
	"errors"
	"testing"
	"time"

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

func TestTTLNetCache(t *testing.T) {
	ttlDuration := time.Millisecond * 50
	cache := newNetworkTTLCache(10, ttlDuration, testNetValueReader)

	key := "key"

	t.Run("Test Add and Get", func(t *testing.T) {
		ti := time.Now()
		cache.set(key, ti, nil)
		val, err := cache.get(key)
		require.NoError(t, err)
		require.Equal(t, ti, val)
	})

	t.Run("Test TTL", func(t *testing.T) {
		ti := time.Now()
		cache.set(key, ti, nil)
		time.Sleep(2 * ttlDuration)
		val, err := cache.get(key)
		require.NoError(t, err)
		require.NotEqual(t, val, ti)
	})

	t.Run("Test Remove", func(t *testing.T) {
		ti := time.Now()
		cache.set(key, ti, nil)
		cache.remove(key)
		val, err := cache.get(key)
		require.NoError(t, err)
		require.NotEqual(t, val, ti)
	})

	t.Run("Test Cache Error", func(t *testing.T) {
		cache.set("error", time.Now(), errors.New("mock error"))
		_, err := cache.get("error")
		require.Error(t, err)
		require.Equal(t, "mock error", err.Error())
	})
}

func testNetValueReader(key string) (time.Time, error) {
	if key == "error" {
		return time.Now(), errors.New("mock error")
	}
	return time.Now(), nil
}