// +build unit

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 deployers

import (
	"fmt"
	"github.com/apache/incubator-openwhisk-client-go/whisk"
	"github.com/apache/incubator-openwhisk-wskdeploy/utils"
	"github.com/apache/incubator-openwhisk-wskdeploy/wskprint"
	"github.com/stretchr/testify/assert"
	"reflect"
	"testing"
)

const (
	// local error messages
	TEST_ERROR_DEPLOYMENT_PARSE_FAILURE        = "Deployment [%s]: Failed to parse."
	TEST_ERROR_DEPLOYMENT_BIND_TRIGGER_FAILURE = "Deployment [%s]: Failed to bind Trigger."
	TEST_ERROR_DEPLOYMENT_FIND_PROJECT         = "Deployment [%s]: Failed to find Project [%s]."
	TEST_ERROR_DEPLOYMENT_FIND_PACKAGES        = "Deployment [%s]: Failed to find Packages for project [%s]."
	TEST_ERROR_DEPLOYMENT_FIND_PACKAGE         = "Deployment [%s]: Failed to find Package [%s]."
	TEST_ERROR_DEPLOYMENT_FIND_TRIGGER         = "Deployment [%s]: Failed to find Trigger [%s]."
	TEST_ERROR_DEPLOYMENT_SET_ANNOTATION       = "Failed to set Annotation value."
	TEST_ERROR_DEPLOYMENT_SET_INPUT_PARAMETER  = "Failed to set input Parameter value."
	TEST_ERROR_DEPLOYMENT_GET_ANNOTATION       = "Failed to get Annotation key."
	TEST_ERROR_DEPLOYMENT_GET_INPUT_PARAMETER  = "Failed to get input Parameter key."
)

// TODO() these globals are shared by manifest_reader_test.go; these tests should be independent of each other
var sd *ServiceDeployer
var dr *DeploymentReader
var deployment_file = "../tests/usecases/github/deployment.yaml"
var manifest_file = "../tests/usecases/github/manifest.yaml"

func init() {
	// Setup "trace" flag for unit tests based upon "go test" -v flag
	utils.Flags.Trace = wskprint.DetectGoTestVerbose()
}

// Check DeploymentReader could handle deployment yaml successfully.
func TestDeploymentReader_HandleYaml(t *testing.T) {

	sd = NewServiceDeployer()
	sd.DeploymentPath = deployment_file
	sd.ManifestPath = manifest_file
	sd.Check()
	dr = NewDeploymentReader(sd)

	TEST_PACKAGE := "GitHubCommits"
	dr.HandleYaml()

	if _, exists := dr.DeploymentDescriptor.GetProject().Packages[TEST_PACKAGE]; !exists {
		assert.Fail(t, fmt.Sprintf(TEST_ERROR_DEPLOYMENT_FIND_PACKAGE,
			dr.serviceDeployer.DeploymentPath, TEST_PACKAGE))
	}

}

func createAnnotationArray(t *testing.T, kv whisk.KeyValue) whisk.KeyValueArr {
	kva := make(whisk.KeyValueArr, 0)
	kva = append(kva, kv)
	return kva
}

// Create a ServiceDeployer with a "dummy" DeploymentPlan (i.e., simulate a fake manifest parse)
// load the deployment YAMl into dReader.DeploymentDescriptor
// bind the deployment inputs and annotations to the named Trigger from Deployment to Manifest YAML
func testLoadAndBindDeploymentYAML(t *testing.T, path string, triggerName string, kv whisk.KeyValue) (*ServiceDeployer, *DeploymentReader) {

	sDeployer := NewServiceDeployer()
	sDeployer.DeploymentPath = path

	// Create Trigger for "bind" function to use (as a Manifest parse would have created)
	sDeployer.Deployment.Triggers[triggerName] = new(whisk.Trigger)
	sDeployer.Deployment.Triggers[triggerName].Annotations = createAnnotationArray(t, kv)

	//parse deployment and bind triggers input and annotations
	dReader := NewDeploymentReader(sDeployer)
	err := dReader.HandleYaml()

	// DEBUG() Uncomment to display initial DeploymentDescriptor (manifest, deployemnt befopre binding)
	//fmt.Println(utils.ConvertMapToJSONString("BEFORE: dReader.DeploymentDescriptor", dReader.DeploymentDescriptor))
	//fmt.Println(utils.ConvertMapToJSONString("BEFORE: sDeployer.Deployment", sDeployer.Deployment))

	// test load of deployment YAML
	if err != nil {
		assert.Fail(t, fmt.Sprintf(TEST_ERROR_DEPLOYMENT_PARSE_FAILURE, sDeployer.DeploymentPath))
	}

	// Test that we can bind Triggers and Annotations
	var inputs interface{}
	err = dReader.bindTriggerInputsAndAnnotations(inputs)

	// test load of deployment YAML
	if err != nil {
		fmt.Println(err)
		assert.Fail(t, fmt.Sprintf(TEST_ERROR_DEPLOYMENT_BIND_TRIGGER_FAILURE, sDeployer.DeploymentPath))
	}

	// DEBUG() Uncomment to display resultant DeploymentDescriptor (manifest + deployment file binding)
	//fmt.Println(utils.ConvertMapToJSONString("AFTER: dReader.DeploymentDescriptor", dReader.DeploymentDescriptor))
	//fmt.Println(utils.ConvertMapToJSONString("AFTER: sDeployer.Deployment", sDeployer.Deployment))

	return sDeployer, dReader
}

func TestDeploymentReader_ProjectBindTrigger(t *testing.T) {

	//init variables
	TEST_DATA := "../tests/dat/deployment_deploymentreader_project_bind_trigger.yml"
	TEST_TRIGGER := "locationUpdate"
	TEST_PROJECT := "AppWithTriggerRule"
	TEST_ANNOTATION_KEY := "bbb"
	// Create an annotation (in manifest representation) with key we expect, with value that should be overwritten
	TEST_ANNOTATION := whisk.KeyValue{TEST_ANNOTATION_KEY, "foo"}

	// create ServicedEployer
	sDeployer, dReader := testLoadAndBindDeploymentYAML(t, TEST_DATA, TEST_TRIGGER, TEST_ANNOTATION)

	// test Project exists with expected name in Deployment file
	projectNameDeploy := dReader.DeploymentDescriptor.GetProject().Name
	if projectNameDeploy != TEST_PROJECT {
		assert.Fail(t, fmt.Sprintf(TEST_ERROR_DEPLOYMENT_FIND_PROJECT, TEST_PROJECT))
	}

	// test that the Project has Packages
	if len(dReader.DeploymentDescriptor.GetProject().Packages) == 0 {
		assert.Fail(t, fmt.Sprintf(TEST_ERROR_DEPLOYMENT_FIND_PACKAGES, TEST_PROJECT))
	}

	trigger := sDeployer.Deployment.Triggers[TEST_TRIGGER]

	// test that Input values from dReader.DeploymentDescriptor wore "bound" onto sDeployer.Deployment
	for _, param := range trigger.Parameters {
		switch param.Key {
		case "name":
			assert.Equal(t, "Bernie", param.Value, TEST_ERROR_DEPLOYMENT_SET_INPUT_PARAMETER)
		case "place":
			assert.Equal(t, "DC", param.Value, TEST_ERROR_DEPLOYMENT_SET_INPUT_PARAMETER)
		default:
			assert.Fail(t, TEST_ERROR_DEPLOYMENT_GET_INPUT_PARAMETER)

		}
	}

	// test that Annotations from dReader.DeploymentDescriptor wore "bound" onto sDeployer.Deployment
	for _, annos := range trigger.Annotations {
		switch annos.Key {
		case TEST_ANNOTATION_KEY:
			// Manifest's value should be overwritten
			assert.Equal(t, "this is an annotation", annos.Value, TEST_ERROR_DEPLOYMENT_SET_ANNOTATION)
		default:
			assert.Fail(t, TEST_ERROR_DEPLOYMENT_GET_ANNOTATION)

		}
	}
}

func TestDeploymentReader_PackagesBindTrigger(t *testing.T) {
	//init variables
	TEST_DATA := "../tests/dat/deployment_deploymentreader_packages_bind_trigger.yml"
	TEST_TRIGGER := "locationUpdate"
	TEST_ANOTATION_KEY := "bbb"
	// Create an annotation (in manifest representation) with key we expect, with value that should be overwritten
	TEST_ANNOTATION := whisk.KeyValue{TEST_ANOTATION_KEY, "bar"}

	sDeployer, _ := testLoadAndBindDeploymentYAML(t, TEST_DATA, TEST_TRIGGER, TEST_ANNOTATION)

	// test that Input values from dReader.DeploymentDescriptor wore "bound" onto sDeployer.Deployment
	if trigger, ok := sDeployer.Deployment.Triggers[TEST_TRIGGER]; ok {

		for _, param := range trigger.Parameters {
			switch param.Key {
			case "name":
				assert.Equal(t, "Bernie", param.Value, TEST_ERROR_DEPLOYMENT_SET_INPUT_PARAMETER)
			case "place":
				assert.Equal(t, "DC", param.Value, TEST_ERROR_DEPLOYMENT_SET_INPUT_PARAMETER)
			default:
				assert.Fail(t, TEST_ERROR_DEPLOYMENT_GET_INPUT_PARAMETER)

			}
		}
		for _, annos := range trigger.Annotations {
			switch annos.Key {
			case "bbb":
				assert.Equal(t, "this is an annotation", annos.Value, TEST_ERROR_DEPLOYMENT_SET_ANNOTATION)
			default:
				assert.Fail(t, TEST_ERROR_DEPLOYMENT_GET_ANNOTATION)

			}
		}
	} else {
		assert.Fail(t, fmt.Sprintf(TEST_ERROR_DEPLOYMENT_FIND_TRIGGER,
			sDeployer.DeploymentPath,
			TEST_TRIGGER))
	}
}

// TODO() use local "load" function
func TestDeploymentReader_BindAssets_ActionAnnotations(t *testing.T) {
	sDeployer := NewServiceDeployer()
	sDeployer.DeploymentPath = "../tests/dat/deployment_validate_action_annotations.yaml"
	sDeployer.ManifestPath = "../tests/dat/manifest_validate_action_annotations.yaml"

	//parse deployment and bind triggers input and annotation
	dReader := NewDeploymentReader(sDeployer)
	dReader.HandleYaml()
	var inputs interface{}
	err := dReader.bindActionInputsAndAnnotations(inputs)

	assert.Nil(t, err, "Failed to bind action annotations")

	pkg_name := "packageActionAnnotations"
	pkg := dReader.DeploymentDescriptor.Packages[pkg_name]
	assert.NotNil(t, pkg, "Could not find package with name "+pkg_name)
	action_name := "helloworld"
	action := dReader.DeploymentDescriptor.GetProject().Packages[pkg_name].Actions[action_name]
	assert.NotNil(t, action, "Could not find action with name "+action_name)
	actual_annotations := action.Annotations
	expected_annotations := map[string]interface{}{
		"action_annotation_1": "this is annotation 1",
		"action_annotation_2": "this is annotation 2",
	}
	assert.Equal(t, len(actual_annotations), len(expected_annotations), "Could not find expected number of annotations specified in manifest file")
	eq := reflect.DeepEqual(actual_annotations, expected_annotations)
	assert.True(t, eq, "Expected list of annotations does not match with actual list, expected annotations: %v actual annotations: %v", expected_annotations, actual_annotations)

	pkg_name = "packageActionAnnotationsWithWebAction"
	pkg = dReader.DeploymentDescriptor.Packages[pkg_name]
	assert.NotNil(t, pkg, "Could not find package with name "+pkg_name)
	action = dReader.DeploymentDescriptor.GetProject().Packages[pkg_name].Actions[action_name]
	assert.NotNil(t, action, "Could not find action with name "+action_name)
	actual_annotations = action.Annotations
	expected_annotations["web-export"] = true
	assert.Equal(t, len(actual_annotations), len(expected_annotations), "Could not find expected number of annotations specified in manifest file")
	eq = reflect.DeepEqual(actual_annotations, expected_annotations)
	assert.True(t, eq, "Expected list of annotations does not match with actual list, expected annotations: %v actual annotations: %v", expected_annotations, actual_annotations)

	pkg_name = "packageActionAnnotationsFromDeployment"
	pkg = dReader.DeploymentDescriptor.Packages[pkg_name]
	assert.NotNil(t, pkg, "Could not find package with name "+pkg_name)
	action = dReader.DeploymentDescriptor.GetProject().Packages[pkg_name].Actions[action_name]
	assert.NotNil(t, action, "Could not find action with name "+action_name)
	actual_annotations = action.Annotations
	expected_annotations = map[string]interface{}{
		"action_annotation_1": "this is annotation 1 from deployment",
		"action_annotation_2": "this is annotation 2 from deployment",
	}
	assert.Equal(t, len(actual_annotations), len(expected_annotations), "Could not find expected number of annotations specified in manifest file")
	eq = reflect.DeepEqual(actual_annotations, expected_annotations)
	assert.True(t, eq, "Expected list of annotations does not match with actual list, expected annotations: %v actual annotations: %v", expected_annotations, actual_annotations)
}