Bp2build for android_app  minsdkversion property

Bug: 249265719
Test: go test ./bp2build
Test: insepcted generated build files
Change-Id: I02ed54a9fdcc88d98439e0a61626a0afc1fce639
diff --git a/java/app.go b/java/app.go
index f596673..73856d2 100755
--- a/java/app.go
+++ b/java/app.go
@@ -1495,6 +1495,10 @@
 	ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: module.Name()}, attrs)
 }
 
+type manifestValueAttribute struct {
+	MinSdkVersion *string
+}
+
 type bazelAndroidAppAttributes struct {
 	*javaCommonAttributes
 	*bazelAapt
@@ -1502,6 +1506,7 @@
 	Custom_package   *string
 	Certificate      bazel.LabelAttribute
 	Certificate_name bazel.StringAttribute
+	Manifest_values  *manifestValueAttribute
 }
 
 // ConvertWithBp2build is used to convert android_app to Bazel.
@@ -1516,11 +1521,22 @@
 
 	certificate, certificateName := android.BazelStringOrLabelFromProp(ctx, a.overridableAppProperties.Certificate)
 
+	manifestValues := &manifestValueAttribute{}
+	// MinSdkVersion(ctx) calls SdkVersion(ctx) if no value for min_sdk_version is set
+	minSdkSpec := a.MinSdkVersion(ctx)
+	if !minSdkSpec.ApiLevel.IsPreview() && minSdkSpec.Valid() {
+		minSdkStr, err := minSdkSpec.EffectiveVersionString(ctx)
+		if err == nil {
+			manifestValues.MinSdkVersion = &minSdkStr
+		}
+	}
+
 	appAttrs := &bazelAndroidAppAttributes{
 		// TODO(b/209576404): handle package name override by product variable PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES
 		Custom_package:   a.overridableAppProperties.Package_name,
 		Certificate:      certificate,
 		Certificate_name: certificateName,
+		Manifest_values:  manifestValues,
 	}
 
 	props := bazel.BazelTargetModuleProperties{