Improve bus (#3)

* Improve bus
* Add ticket log

busservice/busservice.go

@@ -0,0 +1,60 @@
+package busservice
+
+import (
+	"context"
+	"log"
+
+	"github.com/SecurityBrewery/catalyst/bus"
+	"github.com/SecurityBrewery/catalyst/database"
+	"github.com/SecurityBrewery/catalyst/database/busdb"
+	"github.com/SecurityBrewery/catalyst/generated/models"
+	"github.com/SecurityBrewery/catalyst/role"
+	"github.com/SecurityBrewery/catalyst/time"
+)
+
+type busService struct {
+	db          *database.Database
+	apiURL      string
+	apiKey      string
+	catalystBus *bus.Bus
+}
+
+func New(apiurl, apikey string, catalystBus *bus.Bus, db *database.Database) error {
+
+	h := &busService{db: db, apiURL: apiurl, apiKey: apikey, catalystBus: catalystBus}
+
+	if err := catalystBus.SubscribeRequest(h.logRequest); err != nil {
+		return err
+	}
+	if err := catalystBus.SubscribeResult(h.handleResult); err != nil {
+		return err
+	}
+	if err := catalystBus.SubscribeJob(h.handleJob); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func busContext() context.Context {
+	// TODO: change roles?
+	bot := &models.UserResponse{ID: "bot", Roles: []string{role.Admin}}
+	return busdb.UserContext(context.Background(), bot)
+}
+
+func (h *busService) logRequest(msg *bus.RequestMsg) {
+	var logEntries []*models.LogEntry
+	for _, i := range msg.IDs {
+		logEntries = append(logEntries, &models.LogEntry{
+			Type:      bus.ChannelRequest,
+			Reference: i.String(),
+			Creator:   msg.User,
+			Message:   msg.Function,
+			Created:   time.Now().UTC(),
+		})
+	}
+
+	if err := h.db.LogBatchCreate(busContext(), logEntries); err != nil {
+		log.Println(err)
+	}
+}