package test

import (
	"errors"
	"fmt"
	"git.sxidc.com/service-supports/dapr_api/saga"
	"git.sxidc.com/service-supports/dapr_api/state"
	"testing"
	"time"
)

func TestSagaOK(t *testing.T) {
	stateAPI := state.NewAPI(daprHttpPort, 10*time.Second)
	defer state.DestroyAPI(stateAPI)

	saga.Init(stateAPI, stateStoreName, "sage_test")
	defer saga.Destroy()

	orchestrator := saga.GetInstance().BuildOrchestrator("test-ok", 5*time.Second).
		AddStep(&saga.Step{
			StepFunc: func() error {
				fmt.Println("one")
				return nil
			},
			StepRollbackFunc: func() error {
				fmt.Println("one rollback")
				return nil
			},
		}).
		AddStep(&saga.Step{
			StepFunc: func() error {
				fmt.Println("two")
				return nil
			},
			StepRollbackFunc: func() error {
				fmt.Println("two rollback")
				return nil
			},
		}).
		AddStep(&saga.Step{
			StepFunc: func() error {
				fmt.Println("three")
				return nil
			},
			StepRollbackFunc: nil,
		}).
		Output(func() (interface{}, error) {
			return "ok result", nil
		})

	result, err := orchestrator.Run()
	if err != nil {
		t.Fatal(err)
	}

	fmt.Println("Result:", result)
}

func TestSagaRollback(t *testing.T) {
	stateAPI := state.NewAPI(daprHttpPort, 10*time.Second)
	defer state.DestroyAPI(stateAPI)

	saga.Init(stateAPI, stateStoreName, "sage_test")
	defer saga.Destroy()

	orchestrator := saga.GetInstance().BuildOrchestrator("test-rollback", 5*time.Second).
		AddStep(&saga.Step{
			StepFunc: func() error {
				fmt.Println("one")
				return nil
			},
			StepRollbackFunc: func() error {
				fmt.Println("one rollback")
				return nil
			},
		}).
		AddStep(&saga.Step{
			StepFunc: func() error {
				fmt.Println("two")
				return nil
			},
			StepRollbackFunc: func() error {
				fmt.Println("two rollback")
				return nil
			},
		}).
		AddStep(&saga.Step{
			StepFunc: func() error {
				fmt.Println("three")
				return nil
			},
			StepRollbackFunc: nil,
		}).
		AddStep(&saga.Step{
			StepFunc: func() error {
				return errors.New("four error")
			},
			StepRollbackFunc: nil,
		}).
		Output(func() (interface{}, error) {
			return "should not come here", nil
		})

	result, err := orchestrator.Run()
	if err != nil {
		t.Fatal(err)
	}

	fmt.Println("Result:", result)

	time.Sleep(1 * time.Second)
}