Replaced repositories.Bundle with a database interface.

database/mongodb/db.go

@@ -1,6 +1,7 @@
 package mongodb
 
 import (
+	"context"
 	"fmt"
 	"github.com/globalsign/mgo/bson"
 	"time"
@@ -10,8 +11,33 @@ import (
 	"github.com/globalsign/mgo"
 )
 
+type MongoDB struct {
+	session *mgo.Session
+
+	changes    repositories.ChangeRepository
+	characters repositories.CharacterRepository
+	tags       repositories.TagRepository
+}
+
+func (m *MongoDB) Changes() repositories.ChangeRepository {
+	return m.changes
+}
+
+func (m *MongoDB) Characters() repositories.CharacterRepository {
+	return m.characters
+}
+
+func (m *MongoDB) Tags() repositories.TagRepository {
+	return m.tags
+}
+
+func (m *MongoDB) Close(ctx context.Context) error {
+	m.session.Close()
+	return nil
+}
+
 // Init initializes the mongodb database
-func Init(cfg config.Database) (bundle *repositories.Bundle, closeFn func() error, err error) {
+func Init(cfg config.Database) (*MongoDB, error) {
 	port := cfg.Port
 	if port <= 0 {
 		port = 27017
@@ -27,7 +53,7 @@ func Init(cfg config.Database) (bundle *repositories.Bundle, closeFn func() erro
 		Source:    cfg.Db,
 	})
 	if err != nil {
-		return
+		return nil, err
 	}
 
 	db := session.DB(cfg.Db)
@@ -35,27 +61,22 @@ func Init(cfg config.Database) (bundle *repositories.Bundle, closeFn func() erro
 	characters, err := newCharacterRepository(db)
 	if err != nil {
 		session.Close()
-		return nil, nil, err
+		return nil, err
 	}
 
 	changes, err := newChangeRepository(db)
 	if err != nil {
 		session.Close()
-		return nil, nil, err
+		return nil, err
 	}
 
-	bundle = &repositories.Bundle{
-		Characters: characters,
-		Changes:    changes,
-		Tags:       newTagRepository(db),
-	}
+	return &MongoDB{
+		session: session,
 
-	closeFn = func() error {
-		session.Close()
-		return nil
-	}
-
-	return
+		changes:    changes,
+		characters: characters,
+		tags:       newTagRepository(db),
+	}, nil
 }
 
 type counter struct {