/*
Copyright 2020 The cert-manager Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package testing

import (
	"fmt"
	"os"
	"path/filepath"
	"testing"
)

// PathForCRD attempts to find a path to the named CRD.
// The 'name' is the name of the resource contained within the CRD as denoted
// by the filename, e.g. 'foobar' would find a CRD with a filename containing
// the word 'foobar'.
func PathForCRD(t *testing.T, name string) string {
	dir := CRDDirectory(t)
	path := filepath.Join(dir, fmt.Sprintf("crd-%s.templated.yaml", name))
	info, err := os.Stat(path)
	if err != nil {
		t.Fatal(err)
	}
	if info.IsDir() {
		t.Fatalf("expected to find a file when finding path for CRD, but found a directory")
	}
	return path
}

func CRDDirectory(t *testing.T) string {
	runfiles := os.Getenv("RUNFILES_DIR")
	// BAZEL_BIN_DIR allows the developer to set a path to the bazel bin directory.
	// This allows for the tests to be ran outside of Bazel, for example with Delve
	// the Bazel bin directory still needs to be generated using Bazel.
	bazelDir := os.Getenv("BAZEL_BIN_DIR")
	if runfiles == "" && bazelDir == "" {
		t.Fatalf("integration tests can only run within 'bazel test' environment or have BAZEL_BIN_DIR set")
	}
	var path string
	if bazelDir != "" {
		path = filepath.Join(bazelDir, "deploy", "crds")
	} else {
		path = filepath.Join(runfiles, "com_github_jetstack_cert_manager", "deploy", "crds")
	}
	info, err := os.Stat(path)
	if err != nil {
		t.Fatal(err)
	}
	if !info.IsDir() {
		t.Fatalf("expected to find a directory, but found a file")
	}
	return path
}