/*
Copyright 2021 The Dapr Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package command

import (
	"context"
	"encoding/json"
	"testing"

	"github.com/camunda/zeebe/clients/go/v8/pkg/commands"
	"github.com/camunda/zeebe/clients/go/v8/pkg/pb"
	"github.com/camunda/zeebe/clients/go/v8/pkg/zbc"
	"github.com/stretchr/testify/assert"

	"github.com/dapr/components-contrib/bindings"
	"github.com/dapr/kit/logger"
)

type mockResolveIncidentClient struct {
	zbc.Client
	cmd1 *mockResolveIncidentCommandStep1
}

type mockResolveIncidentCommandStep1 struct {
	commands.ResolveIncidentCommandStep1
	cmd2        *mockResolveIncidentCommandStep2
	incidentKey int64
}

type mockResolveIncidentCommandStep2 struct {
	commands.ResolveIncidentCommandStep2
}

func (mc *mockResolveIncidentClient) NewResolveIncidentCommand() commands.ResolveIncidentCommandStep1 {
	mc.cmd1 = &mockResolveIncidentCommandStep1{
		cmd2: &mockResolveIncidentCommandStep2{},
	}

	return mc.cmd1
}

func (cmd1 *mockResolveIncidentCommandStep1) IncidentKey(incidentKey int64) commands.ResolveIncidentCommandStep2 {
	cmd1.incidentKey = incidentKey

	return cmd1.cmd2
}

func (cmd2 *mockResolveIncidentCommandStep2) Send(context.Context) (*pb.ResolveIncidentResponse, error) {
	return &pb.ResolveIncidentResponse{}, nil
}

func TestResolveIncident(t *testing.T) {
	testLogger := logger.NewLogger("test")

	t.Run("incidentKey is mandatory", func(t *testing.T) {
		cmd := ZeebeCommand{logger: testLogger}
		req := &bindings.InvokeRequest{Operation: ResolveIncidentOperation}
		_, err := cmd.Invoke(context.TODO(), req)
		assert.Error(t, err, ErrMissingIncidentKey)
	})

	t.Run("resolve a incident", func(t *testing.T) {
		payload := resolveIncidentPayload{
			IncidentKey: new(int64),
		}
		data, err := json.Marshal(payload)
		assert.NoError(t, err)

		req := &bindings.InvokeRequest{Data: data, Operation: ResolveIncidentOperation}

		var mc mockResolveIncidentClient

		cmd := ZeebeCommand{logger: testLogger, client: &mc}
		_, err = cmd.Invoke(context.TODO(), req)
		assert.NoError(t, err)

		assert.Equal(t, *payload.IncidentKey, mc.cmd1.incidentKey)
	})
}
