// Copyright (c) TFG Co. All Rights Reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package pitaya

import (
	"errors"
	"testing"

	"github.com/golang/mock/gomock"
	"github.com/google/uuid"
	"github.com/stretchr/testify/assert"
	clustermocks "github.com/topfreegames/pitaya/v2/cluster/mocks"
	"github.com/topfreegames/pitaya/v2/config"
	"github.com/topfreegames/pitaya/v2/constants"
	"github.com/topfreegames/pitaya/v2/protos"
	serializemocks "github.com/topfreegames/pitaya/v2/serialize/mocks"
	sessionmocks "github.com/topfreegames/pitaya/v2/session/mocks"
)

type someStruct struct {
	A int
}

func TestSendPushToUsersFailsIfErrSerializing(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()
	mockSerializer := serializemocks.NewMockSerializer(ctrl)

	config := config.NewDefaultBuilderConfig()
	builder := NewDefaultBuilder(true, "testtype", Cluster, map[string]string{}, *config)
	builder.Serializer = mockSerializer
	app := builder.Build()

	route := "some.route.bla"
	data := &someStruct{A: 10}
	uid := uuid.New().String()
	expectedErr := errors.New("serialize error")
	mockSerializer.EXPECT().Marshal(data).Return(nil, expectedErr)

	errArr, err := app.SendPushToUsers(route, data, []string{uid}, "test")
	assert.Equal(t, expectedErr, err)
	assert.Len(t, errArr, 1)
	assert.Equal(t, errArr[0], uid)
}

func TestSendToUsersLocalSession(t *testing.T) {
	tables := []struct {
		name string
		err  error
	}{
		{"successful_request", nil},
		{"failed_request", constants.ErrPushingToUsers},
	}
	for _, table := range tables {
		t.Run(table.name, func(t *testing.T) {
			ctrl := gomock.NewController(t)
			defer ctrl.Finish()

			route := "some.route.bla"
			data := []byte("hello")
			uid1 := uuid.New().String()
			uid2 := uuid.New().String()

			s1 := sessionmocks.NewMockSession(ctrl)
			s2 := sessionmocks.NewMockSession(ctrl)
			if table.err != nil {
				s1.EXPECT().ID().Times(1).Return(int64(1))
				s2.EXPECT().ID().Times(1).Return(int64(2))
				s1.EXPECT().UID().Times(1).Return(uid1)
				s2.EXPECT().UID().Times(1).Return(uid2)
			}
			s1.EXPECT().Push(route, data).Times(1).Return(table.err)
			s2.EXPECT().Push(route, data).Times(1).Return(table.err)

			mockSessionPool := sessionmocks.NewMockSessionPool(ctrl)
			mockSessionPool.EXPECT().GetSessionByUID(uid1).Return(s1).Times(1)
			mockSessionPool.EXPECT().GetSessionByUID(uid2).Return(s2).Times(1)

			config := config.NewDefaultBuilderConfig()
			builder := NewDefaultBuilder(true, "testtype", Standalone, map[string]string{}, *config)
			builder.SessionPool = mockSessionPool
			app := builder.Build().(*App)
			errArr, err := app.SendPushToUsers(route, data, []string{uid1, uid2}, app.server.Type)

			if table.err != nil {
				assert.Equal(t, err, table.err)
				assert.Len(t, errArr, 2)
			} else {
				assert.NoError(t, err)
				assert.Len(t, errArr, 0)
			}

		})
	}
}

func TestSendToUsersRemoteSession(t *testing.T) {
	tables := []struct {
		name string
		err  error
	}{
		{"successful_request", nil},
		{"failed_request", constants.ErrPushingToUsers},
	}
	for _, table := range tables {
		t.Run(table.name, func(t *testing.T) {
			ctrl := gomock.NewController(t)
			defer ctrl.Finish()

			route := "some.route.bla"
			data := []byte("hello")
			svType := "connector"
			uid1 := uuid.New().String()
			uid2 := uuid.New().String()

			expectedMsg1 := &protos.Push{
				Route: route,
				Uid:   uid1,
				Data:  data,
			}
			expectedMsg2 := &protos.Push{
				Route: route,
				Uid:   uid2,
				Data:  data,
			}
			mockRPCClient := clustermocks.NewMockRPCClient(ctrl)
			mockRPCClient.EXPECT().SendPush(uid1, gomock.Any(), expectedMsg1).Return(table.err)
			mockRPCClient.EXPECT().SendPush(uid2, gomock.Any(), expectedMsg2).Return(table.err)

			mockSessionPool := sessionmocks.NewMockSessionPool(ctrl)
			mockSessionPool.EXPECT().GetSessionByUID(uid1).Return(nil).Times(1)
			mockSessionPool.EXPECT().GetSessionByUID(uid2).Return(nil).Times(1)

			config := config.NewDefaultBuilderConfig()
			builder := NewDefaultBuilder(true, "testtype", Cluster, map[string]string{}, *config)
			builder.SessionPool = mockSessionPool
			builder.RPCClient = mockRPCClient
			app := builder.Build()

			errArr, err := app.SendPushToUsers(route, data, []string{uid1, uid2}, svType)
			if table.err != nil {
				assert.EqualError(t, err, table.err.Error())
				assert.Len(t, errArr, 2)
			} else {
				assert.NoError(t, err)
				assert.Nil(t, errArr)
			}
		})
	}
}