package cmd

import (
	"fmt"
	"os"
	"path/filepath"
	"time"

	"github.com/SAP/jenkins-library/pkg/config"
	"github.com/SAP/jenkins-library/pkg/log"
	"github.com/SAP/jenkins-library/pkg/piperenv"
	"github.com/SAP/jenkins-library/pkg/telemetry"
	"github.com/spf13/cobra"
)

type testStepOptions struct {
	Param0 string `json:"param0,omitempty"`
	Param1 string `json:"param1,omitempty"`
	Param2 string `json:"param2,omitempty"`
}


type testStepCommonPipelineEnvironment struct {
	artifactVersion string
	git struct {
		commitID string
		branch string
	}
}

func (p *testStepCommonPipelineEnvironment) persist(path, resourceName string) {
	content := []struct{
		category string
		name string
		value string
	}{
		{category: "", name: "artifactVersion", value: p.artifactVersion},
		{category: "git", name: "commitId", value: p.git.commitID},
		{category: "git", name: "branch", value: p.git.branch},
	}

	errCount := 0
	for _, param := range content {
		err := piperenv.SetResourceParameter(path, resourceName, filepath.Join(param.category, param.name), param.value)
		if err != nil {
			log.Entry().WithError(err).Error("Error persisting piper environment.")
			errCount++
		}
	}
	if errCount > 0 {
		os.Exit(1)
	}
}

type testStepInfluxTest struct {
	m1 struct {
		fields struct {
			f1 string
		}
		tags struct {
			t1 string
		}
	}
}

func (i *testStepInfluxTest) persist(path, resourceName string) {
	measurementContent := []struct{
		measurement string
		valType     string
		name        string
		value       string
	}{
		{valType: config.InfluxField, measurement: "m1" , name: "f1", value: i.m1.fields.f1},
		{valType: config.InfluxTag, measurement: "m1" , name: "t1", value: i.m1.tags.t1},
	}

	errCount := 0
	for _, metric := range measurementContent {
		err := piperenv.SetResourceParameter(path, resourceName, filepath.Join(metric.measurement, fmt.Sprintf("%vs", metric.valType), metric.name), metric.value)
		if err != nil {
			log.Entry().WithError(err).Error("Error persisting influx environment.")
			errCount++
		}
	}
	if errCount > 0 {
		os.Exit(1)
	}
}


// TestStepCommand Test description
func TestStepCommand() *cobra.Command {
	metadata := testStepMetadata()
	var stepConfig testStepOptions
	var startTime time.Time
	var commonPipelineEnvironment testStepCommonPipelineEnvironment
	var influxTest testStepInfluxTest

	var createTestStepCmd = &cobra.Command{
		Use:   "testStep",
		Short: "Test description",
		Long: `Long Test description`,
		PreRunE: func(cmd *cobra.Command, args []string) error {
			startTime = time.Now()
			log.SetStepName("testStep")
			log.SetVerbose(GeneralConfig.Verbose)
			return PrepareConfig(cmd, &metadata, "testStep", &stepConfig, config.OpenPiperFile)
		},
		Run: func(cmd *cobra.Command, args []string) {
			telemetryData := telemetry.CustomData{}
			telemetryData.ErrorCode = "1"
			handler := func() {
				commonPipelineEnvironment.persist(GeneralConfig.EnvRootPath, "commonPipelineEnvironment")
				influxTest.persist(GeneralConfig.EnvRootPath, "influxTest")
				telemetryData.Duration = fmt.Sprintf("%v", time.Since(startTime).Milliseconds())
				telemetry.Send(&telemetryData)
			}
			log.DeferExitHandler(handler)
			defer handler()
			telemetry.Initialize(GeneralConfig.NoTelemetry, "testStep")
			testStep(stepConfig, &telemetryData, &commonPipelineEnvironment, &influxTest)
			telemetryData.ErrorCode = "0"
		},
	}

	addTestStepFlags(createTestStepCmd, &stepConfig)
	return createTestStepCmd
}

func addTestStepFlags(cmd *cobra.Command, stepConfig *testStepOptions) {
	cmd.Flags().StringVar(&stepConfig.Param0, "param0", "val0", "param0 description")
	cmd.Flags().StringVar(&stepConfig.Param1, "param1", os.Getenv("PIPER_param1"), "param1 description")
	cmd.Flags().StringVar(&stepConfig.Param2, "param2", os.Getenv("PIPER_param2"), "param1 description")

	cmd.MarkFlagRequired("param0")
	cmd.MarkFlagRequired("param2")
}

// retrieve step metadata
func testStepMetadata() config.StepData {
	var theMetaData = config.StepData{
		Spec: config.StepSpec{
			Inputs: config.StepInputs{
				Parameters: []config.StepParameters{
					{
						Name:      "param0",
						ResourceRef: []config.ResourceReference{},
						Scope:     []string{"GENERAL","PARAMETERS",},
						Type:      "string",
						Mandatory: true,
						Aliases:   []config.Alias{},
					},
					{
						Name:      "param1",
						ResourceRef: []config.ResourceReference{},
						Scope:     []string{"PARAMETERS",},
						Type:      "string",
						Mandatory: false,
						Aliases:   []config.Alias{},
					},
					{
						Name:      "param2",
						ResourceRef: []config.ResourceReference{},
						Scope:     []string{"PARAMETERS",},
						Type:      "string",
						Mandatory: true,
						Aliases:   []config.Alias{},
					},
				},
			},
		},
	}
	return theMetaData
}