package main

import "github.com/eerzho/simpledi"

type Database struct {
	URL string
}

func (d *Database) Close() error {
	return errors.New("database close error")
}

type Service struct {
	Database *Database
}

func main() {
	// Close all definitions in reverse order at the end
	defer simpledi.Close()

	// Define database
	simpledi.Set(simpledi.Definition{
		ID:   "database",
		New: func() any {
			return &Database{URL: "postgres"}
		},
		Close: func() error {
			database := simpledi.Get[*Database]("database")
			return database.Close()
		},
	})

	// Define service
	simpledi.Set(simpledi.Definition{
		ID:   "service",
		Deps: []string{"database"},
		New: func() any {
			database := simpledi.Get[*Database]("database")
			return &Service{Database: database}
		},
	})

	// Resolve all dependencies in correct order
	simpledi.Resolve()

	// Use the service
	service := simpledi.Get[*Service]("service")
	_ = service
}