package architecture

import (
	"go/ast"
	"go/parser"
	"go/token"
	"io/fs"
	"path/filepath"
	"strings"
	"testing"
)

func TestLocalCustomerModelHasNoPlatformTenancy(t *testing.T) {
	// Local customer models and storage must stay free of provider tenancy.
	forbidden := map[string]bool{"organization": true, "organizationref": true, "orgref": true, "orgdb": true, "role": true, "roles": true, "roledescription": true, "rolemanager": true, "policy": true, "policies": true, "policydescription": true, "policydb": true, "permissionbound": true, "signup_provisioning": true}
	err := filepath.WalkDir("../..", func(path string, entry fs.DirEntry, err error) error {
		if err != nil {
			return err
		}
		if entry.IsDir() || filepath.Ext(path) != ".go" || strings.HasSuffix(path, "_test.go") {
			return nil
		}
		parsed, err := parser.ParseFile(token.NewFileSet(), path, nil, 0)
		if err != nil {
			return err
		}
		ast.Inspect(parsed, func(node ast.Node) bool {
			var names []*ast.Ident
			switch n := node.(type) {
			case *ast.TypeSpec:
				names = []*ast.Ident{n.Name}
			case *ast.Field:
				names = n.Names
			}
			for _, name := range names {
				if forbidden[strings.ToLower(name.Name)] {
					t.Errorf("%s reintroduces local platform tenancy: %s", path, name.Name)
				}
			}
			return true
		})
		return nil
	})
	if err != nil {
		t.Fatal(err)
	}
}