package app

import (
	"time"

	"go.temporal.io/sdk/temporal"
	"go.temporal.io/sdk/workflow"
)

func RegistrationWorkflow(ctx workflow.Context, name string) (string, error) {
	retryPolicy := &temporal.RetryPolicy{
		InitialInterval:    time.Second,
		BackoffCoefficient: 2.0,
		MaximumInterval:    512 * time.Second,
		MaximumAttempts:    64,
	}

	options := workflow.ActivityOptions{
		StartToCloseTimeout: time.Minute,
		RetryPolicy:         retryPolicy,
	}

	ctx = workflow.WithActivityOptions(ctx, options)

	//

	var result string
	err := workflow.ExecuteActivity(ctx, ComposeGreeting, name).Get(ctx, &result)

	if err != nil {
		return "", err
	}

	return result, err
}