package rbd

import (
	"testing"

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

func TestNamespace(t *testing.T) {
	conn := radosConnect(t)

	poolName := GetUUID()
	err := conn.MakePool(poolName)
	assert.NoError(t, err)

	ioctx, err := conn.OpenIOContext(poolName)
	assert.NoError(t, err)

	defer func() {
		ioctx.Destroy()
		conn.DeletePool(poolName)
		conn.Shutdown()
	}()

	t.Run("invalidInputNamespace", func(t *testing.T) {
		// NamespaceCreate.
		err := NamespaceCreate(nil, "someName")
		assert.Error(t, err)
		err = NamespaceCreate(ioctx, "")
		assert.Error(t, err)

		// NamespaceRemove.
		err = NamespaceRemove(nil, "someName")
		assert.Error(t, err)
		err = NamespaceRemove(ioctx, "")
		assert.Error(t, err)

		// NamespaceExists.
		_, err = NamespaceExists(nil, "someName")
		assert.Error(t, err)
		_, err = NamespaceExists(ioctx, "")
		assert.Error(t, err)

		// NamespaceList.
		_, err = NamespaceList(nil)
		assert.Error(t, err)
	})

	t.Run("CreateNamespace", func(t *testing.T) {
		nameSpace := "myNamespace"
		err := NamespaceCreate(ioctx, nameSpace)
		assert.NoError(t, err)

		// Check whether it exists or not.
		val, err := NamespaceExists(ioctx, nameSpace)
		assert.NoError(t, err)
		assert.Equal(t, val, true)

		// Create again with same name.
		err = NamespaceCreate(ioctx, nameSpace)
		assert.Error(t, err)

		// Remove the namespace.
		err = NamespaceRemove(ioctx, nameSpace)
		assert.NoError(t, err)
	})

	t.Run("NonExistingNamespace", func(t *testing.T) {
		// Try to remove.
		err := NamespaceRemove(ioctx, "someNamespace")
		assert.Error(t, err)

		// Check the existence.
		val, err := NamespaceExists(ioctx, "someNamespace")
		assert.NoError(t, err)
		assert.Equal(t, val, false)
	})

	t.Run("NamespaceList", func(t *testing.T) {
		var (
			name1 = "name1"
			name2 = "name2"
			name3 = "name3"
		)
		err := NamespaceCreate(ioctx, name1)
		assert.NoError(t, err)
		err = NamespaceCreate(ioctx, name2)
		assert.NoError(t, err)
		err = NamespaceCreate(ioctx, name3)
		assert.NoError(t, err)
		defer func() {
			assert.NoError(t, NamespaceRemove(ioctx, name1))
			assert.NoError(t, NamespaceRemove(ioctx, name2))
			assert.NoError(t, NamespaceRemove(ioctx, name3))
		}()

		eval, err := NamespaceExists(ioctx, name1)
		assert.NoError(t, err)
		assert.Equal(t, eval, true)
		nList, err := NamespaceList(ioctx)
		assert.NoError(t, err)
		assert.Contains(t, nList, name1)
		assert.Contains(t, nList, name2)
		assert.Contains(t, nList, name3)
	})
}