/*
Copyright 2022 The Karmada 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 helper

import (
	"reflect"
	"testing"
	"time"

	batchv1 "k8s.io/api/batch/v1"
	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"

	workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
)

func TestGetJobFinishedStatus(t *testing.T) {
	tests := []struct {
		name                  string
		jobStatus             *batchv1.JobStatus
		expectedJobFinished   bool
		expectedConditionType batchv1.JobConditionType
	}{
		{
			name: "job complete",
			jobStatus: &batchv1.JobStatus{
				Conditions: []batchv1.JobCondition{{Type: batchv1.JobComplete, Status: corev1.ConditionTrue}},
			},
			expectedJobFinished:   true,
			expectedConditionType: batchv1.JobComplete,
		},
		{
			name: "job failed",
			jobStatus: &batchv1.JobStatus{
				Conditions: []batchv1.JobCondition{{Type: batchv1.JobFailed, Status: corev1.ConditionTrue}},
			},
			expectedJobFinished:   true,
			expectedConditionType: batchv1.JobFailed,
		},
		{
			name: "job suspended",
			jobStatus: &batchv1.JobStatus{
				Conditions: []batchv1.JobCondition{{Type: batchv1.JobSuspended, Status: corev1.ConditionTrue}},
			},
			expectedJobFinished:   false,
			expectedConditionType: "",
		},
		{
			name: "job condition unknown",
			jobStatus: &batchv1.JobStatus{
				Conditions: []batchv1.JobCondition{{Type: batchv1.JobComplete, Status: corev1.ConditionUnknown}},
			},
			expectedJobFinished:   false,
			expectedConditionType: "",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			res, resType := GetJobFinishedStatus(tt.jobStatus)
			if res != tt.expectedJobFinished || resType != tt.expectedConditionType {
				t.Errorf("expected: %v and %v, but got: %v and %v", tt.expectedJobFinished, tt.expectedConditionType, res, resType)
			}
		})
	}
}

func TestParsingJobStatus(t *testing.T) {
	testTime := time.Now()
	testV1time := metav1.NewTime(testTime)
	statusMap := map[string]interface{}{
		"active":         0,
		"succeeded":      1,
		"startTime":      testV1time,
		"completionTime": testV1time,
		"failed":         0,
		"conditions":     []batchv1.JobCondition{{Type: batchv1.JobComplete, Status: corev1.ConditionTrue}},
	}
	raw, _ := BuildStatusRawExtension(statusMap)
	statusMapWithJobfailed := map[string]interface{}{
		"active":         0,
		"succeeded":      0,
		"startTime":      testV1time,
		"completionTime": testV1time,
		"failed":         1,
		"conditions":     []batchv1.JobCondition{{Type: batchv1.JobFailed, Status: corev1.ConditionTrue}},
	}
	rawJobFailed, _ := BuildStatusRawExtension(statusMapWithJobfailed)
	tests := []struct {
		name                  string
		job                   *batchv1.Job
		aggregatedStatusItems []workv1alpha2.AggregatedStatusItem
		expectedJobStatus     *batchv1.JobStatus
	}{
		{
			name: "",
			job: &batchv1.Job{
				ObjectMeta: metav1.ObjectMeta{
					Name:      "foo",
					Namespace: "bar",
				},
			},
			aggregatedStatusItems: []workv1alpha2.AggregatedStatusItem{
				{ClusterName: "memberA", Status: raw},
				{ClusterName: "memberB", Status: raw},
			},
			expectedJobStatus: &batchv1.JobStatus{
				Succeeded: 2,
				Conditions: []batchv1.JobCondition{
					{
						Type:               batchv1.JobComplete,
						Status:             corev1.ConditionTrue,
						LastProbeTime:      testV1time,
						LastTransitionTime: testV1time,
						Reason:             "Completed",
						Message:            "Job completed",
					},
				},
			},
		},
		{
			name: "",
			job: &batchv1.Job{
				ObjectMeta: metav1.ObjectMeta{
					Name:      "foo",
					Namespace: "bar",
				},
			},
			aggregatedStatusItems: []workv1alpha2.AggregatedStatusItem{
				{ClusterName: "memberA", Status: rawJobFailed},
				{ClusterName: "memberB", Status: rawJobFailed},
			},
			expectedJobStatus: &batchv1.JobStatus{
				Failed: 2,
				Conditions: []batchv1.JobCondition{
					{
						Type:               batchv1.JobFailed,
						Status:             corev1.ConditionTrue,
						LastProbeTime:      testV1time,
						LastTransitionTime: testV1time,
						Reason:             "JobFailed",
						Message:            "Job executed failed in member clusters memberA,memberB",
					},
				},
			},
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			res, err := ParsingJobStatus(tt.job, tt.aggregatedStatusItems)
			if err != nil {
				t.Fatalf("failed to parse job status, err: %v", err)
			}
			// Do not compare times to avoid time errors due to processor processing
			res.StartTime = nil
			res.CompletionTime = nil
			for i := range res.Conditions {
				res.Conditions[i].LastProbeTime = testV1time
				res.Conditions[i].LastTransitionTime = testV1time
			}
			if !reflect.DeepEqual(res, tt.expectedJobStatus) {
				t.Errorf("expected: %v, but got: %v", tt.expectedJobStatus, res)
			}
		})
	}
}