schemas/domain/aggregates.go

package domain

import (
	"fmt"
	"strings"
	"time"

	"gitlab.com/unboundsoftware/eventsourced/eventsourced"
)

type Organization struct {
	eventsourced.BaseAggregate
	Name      string
	Users     []string
	APIKeys   []APIKey
	CreatedBy string
	CreatedAt time.Time
	ChangedBy string
	ChangedAt time.Time
}

func (o *Organization) Apply(event eventsourced.Event) error {
	switch e := event.(type) {
	case *OrganizationAdded:
		e.UpdateOrganization(o)
	case *APIKeyAdded:
		o.APIKeys = append(o.APIKeys, APIKey{
			Name:           e.Name,
			OrganizationId: o.ID.String(),
			Key:            e.Key,
			Refs:           e.Refs,
			Read:           e.Read,
			Publish:        e.Publish,
			CreatedBy:      e.Initiator,
			CreatedAt:      e.When(),
		})
		o.ChangedBy = e.Initiator
		o.ChangedAt = e.When()
	default:
		return fmt.Errorf("unexpected event type: %+v", event)
	}
	return nil
}

var _ eventsourced.Aggregate = &Organization{}

type APIKey struct {
	Name           string
	OrganizationId string
	Key            string
	Refs           []string
	Read           bool
	Publish        bool
	CreatedBy      string
	CreatedAt      time.Time
}

type SubGraph struct {
	eventsourced.BaseAggregate
	OrganizationId string
	Ref            string
	Service        string
	Url            *string
	WSUrl          *string
	Sdl            string
	CreatedBy      string
	CreatedAt      time.Time
	ChangedBy      string
	ChangedAt      time.Time
}

func (s *SubGraph) Apply(event eventsourced.Event) error {
	switch e := event.(type) {
	case *SubGraphUpdated:
		if s.Ref == "" {
			s.CreatedBy = e.Initiator
			s.CreatedAt = e.When()
		}
		if s.OrganizationId == "" {
			s.OrganizationId = e.OrganizationId
		}
		s.ChangedBy = e.Initiator
		s.ChangedAt = e.When()
		s.Ref = e.Ref
		s.Service = e.Service
		if e.Url != nil {
			url := strings.TrimSpace(*e.Url)
			s.Url = &url
		}
		if e.WSUrl != nil {
			url := strings.TrimSpace(*e.WSUrl)
			s.WSUrl = &url
		}
		s.Sdl = e.Sdl
	default:
		return fmt.Errorf("unexpected event type: %+v", event)
	}
	return nil
}

var _ eventsourced.Aggregate = &SubGraph{}