Bootstrap copied BFF and local accounts with public Sendico contracts (#34)

backend/pkg/db/internal/mongo/repositoryimp/builderimp/array.go

@@ -0,0 +1,27 @@
+package builderimp
+
+import (
+	"git.sendico.io/tech/sxchnge/bff/pkg/db/repository/builder"
+	"go.mongodb.org/mongo-driver/v2/bson"
+)
+
+type arrayImp struct {
+	elements []builder.Expression
+}
+
+// Build renders the literal array:
+//
+//	[ <expr1>, <expr2>, … ]
+func (b *arrayImp) Build() bson.A {
+	arr := make(bson.A, len(b.elements))
+	for i, expr := range b.elements {
+		// each expr.Build() returns the raw value or sub‐expression
+		arr[i] = expr.Build()
+	}
+	return arr
+}
+
+// NewArray constructs a new array expression from the given sub‐expressions.
+func NewArray(exprs ...builder.Expression) *arrayImp {
+	return &arrayImp{elements: exprs}
+}