service backend

api/pkg/db/repository/index/index.go

@@ -0,0 +1,21 @@
+package repository
+
+type Sort int8
+
+const (
+	Asc  Sort = 1
+	Desc Sort = -1
+)
+
+type Key struct {
+	Field string
+	Sort  Sort      // 1 or -1. 0 means “use Type”.
+	Type  IndexType // optional: "text", "2dsphere", ...
+}
+
+type Definition struct {
+	Keys   []Key  // mandatory, at least one element
+	Unique bool   // unique constraint?
+	TTL    *int32 // seconds; nil means “no TTL”
+	Name   string // optional explicit name
+}

api/pkg/db/repository/index/types.go

@@ -0,0 +1,36 @@
+package repository
+
+// IndexType represents a supported MongoDB index type.
+type IndexType string
+
+const (
+	// IndexTypeNotSet is a default index type
+	IndexTypeNotSet IndexType = ""
+
+	// IndexTypeSingleField is a single-field index.
+	IndexTypeSingleField IndexType = "single"
+
+	// IndexTypeCompound is a compound index on multiple fields.
+	IndexTypeCompound IndexType = "compound"
+
+	// IndexTypeMultikey is an index on array fields (created automatically when needed).
+	IndexTypeMultikey IndexType = "multikey"
+
+	// IndexTypeText is a text index for full-text search.
+	IndexTypeText IndexType = "text"
+
+	// IndexTypeGeo2D is a legacy 2D geospatial index for planar geometry.
+	IndexTypeGeo2D IndexType = "2d"
+
+	// IndexTypeGeo2DSphere is a 2dsphere geospatial index for GeoJSON data.
+	IndexTypeGeo2DSphere IndexType = "2dsphere"
+
+	// IndexTypeHashed is a hashed index for sharding and efficient equality queries.
+	IndexTypeHashed IndexType = "hashed"
+
+	// IndexTypeWildcard is a wildcard index to index all fields or subpaths.
+	IndexTypeWildcard IndexType = "wildcard"
+
+	// IndexTypeClustered is a clustered index that orders the collection on the index key.
+	IndexTypeClustered IndexType = "clustered"
+)