// The MIT License
//
// Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
//
// Copyright (c) 2020 Uber Technologies, Inc.
//
// 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 persistence

import (
	"testing"

	"github.com/stretchr/testify/require"
	"github.com/stretchr/testify/suite"
	commonpb "go.temporal.io/api/common/v1"
	taskqueuepb "go.temporal.io/api/taskqueue/v1"

	persistencespb "go.temporal.io/server/api/persistence/v1"
)

type (
	statsComputerSuite struct {
		sc *statsComputer
		suite.Suite
		// override suite.Suite.Assertions with require.Assertions; this means that s.NotNil(nil) will stop the test,
		// not merely log an error
		*require.Assertions
	}
)

func TestStatsComputerSuite(t *testing.T) {
	s := new(statsComputerSuite)
	suite.Run(t, s)
}

// TODO need to add more tests
func (s *statsComputerSuite) SetupTest() {
	// Have to define our overridden assertions in the test setup. If we did it earlier, s.T() will return nil
	s.Assertions = require.New(s.T())
	s.sc = &statsComputer{}
}

func (s *statsComputerSuite) createRequest() *UpdateWorkflowExecutionRequest {
	return &UpdateWorkflowExecutionRequest{
		UpdateWorkflowMutation: WorkflowMutation{
			ExecutionInfo:  &persistencespb.WorkflowExecutionInfo{},
			ExecutionState: &persistencespb.WorkflowExecutionState{},
		},
	}
}

func (s *statsComputerSuite) TestStatsWithStartedEvent() {
	ms := s.createRequest()
	namespaceID := "A"
	execution := commonpb.WorkflowExecution{
		WorkflowId: "test-workflow-id",
		RunId:      "run_id",
	}
	workflowType := &commonpb.WorkflowType{
		Name: "test-workflow-type-name",
	}
	taskQueue := &taskqueuepb.TaskQueue{
		Name: "test-taskqueue",
	}

	ms.UpdateWorkflowMutation.ExecutionInfo.NamespaceId = namespaceID
	ms.UpdateWorkflowMutation.ExecutionInfo.WorkflowId = execution.GetWorkflowId()
	ms.UpdateWorkflowMutation.ExecutionState.RunId = execution.GetRunId()
	ms.UpdateWorkflowMutation.ExecutionInfo.WorkflowTypeName = workflowType.GetName()
	ms.UpdateWorkflowMutation.ExecutionInfo.TaskQueue = taskQueue.GetName()

	expectedSize := len(execution.GetWorkflowId()) + len(workflowType.GetName()) + len(taskQueue.GetName())

	stats := s.sc.computeMutableStateUpdateStats(ms)
	s.Equal(stats.ExecutionInfoSize, expectedSize)
}
