Initial commit

stackit/conversion/conversion.go

@@ -0,0 +1,75 @@
+package conversion
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
+)
+
+func ToPtrInt32(source types.Int64) *int32 {
+	if source.IsNull() || source.IsUnknown() {
+		return nil
+	}
+	ttlInt64 := source.ValueInt64()
+	ttlInt32 := int32(ttlInt64)
+	return &ttlInt32
+}
+
+func ToTypeInt64(i *int32) types.Int64 {
+	if i == nil {
+		return types.Int64PointerValue(nil)
+	}
+	return types.Int64Value(int64(*i))
+}
+
+func ToString(ctx context.Context, v attr.Value) (string, error) {
+	if t := v.Type(ctx); t != types.StringType {
+		return "", fmt.Errorf("type mismatch. expected 'types.StringType' but got '%s'", t.String())
+	}
+	if v.IsNull() || v.IsUnknown() {
+		return "", fmt.Errorf("value is unknown or null")
+	}
+	tv, err := v.ToTerraformValue(ctx)
+	if err != nil {
+		return "", err
+	}
+	var s string
+	if err := tv.Copy().As(&s); err != nil {
+		return "", err
+	}
+	return s, nil
+}
+
+func ToOptStringMap(tfMap map[string]attr.Value) (*map[string]string, error) { //nolint: gocritic //pointer needed to map optional fields
+	labels := make(map[string]string, len(tfMap))
+	for l, v := range tfMap {
+		valueString, ok := v.(types.String)
+		if !ok {
+			return nil, fmt.Errorf("error converting map value: expected to string, got %v", v)
+		}
+		labels[l] = valueString.ValueString()
+	}
+
+	labelsPointer := &labels
+	if len(labels) == 0 {
+		labelsPointer = nil
+	}
+	return labelsPointer, nil
+}
+
+func ToTerraformStringMap(ctx context.Context, m map[string]string) (basetypes.MapValue, error) {
+	labels := make(map[string]attr.Value, len(m))
+	for l, v := range m {
+		stringValue := types.StringValue(v)
+		labels[l] = stringValue
+	}
+	res, diags := types.MapValueFrom(ctx, types.StringType, m)
+	if diags.HasError() {
+		return types.MapNull(types.StringType), fmt.Errorf("converting to MapValue: %v", diags.Errors())
+	}
+
+	return res, nil
+}