/*
 * MinIO Cloud Storage, (C) 2020 MinIO, Inc.
 *
 * 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 env

import (
	"fmt"
	"net/http"
	"net/http/httptest"
	"net/url"
	"testing"

	"github.com/gorilla/mux"
)

func GetenvHandler(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	if vars["namespace"] != "default" {
		http.Error(w, "namespace not found", http.StatusNotFound)
		return
	}
	if vars["name"] != "minio" {
		http.Error(w, "tenant not found", http.StatusNotFound)
		return
	}
	if vars["key"] != "MINIO_ARGS" {
		http.Error(w, "key not found", http.StatusNotFound)
		return
	}
	w.Write([]byte("http://127.0.0.{1..4}:9000/data{1...4}"))
	w.(http.Flusher).Flush()
}

func startTestServer(t *testing.T) *httptest.Server {
	router := mux.NewRouter().SkipClean(true).UseEncodedPath()
	router.Methods(http.MethodGet).
		Path("/webhook/v1/getenv/{namespace}/{name}").
		HandlerFunc(GetenvHandler).Queries("key", "{key:.*}")

	ts := httptest.NewServer(router)
	t.Cleanup(func() {
		ts.Close()
	})

	return ts
}

func TestWebEnv(t *testing.T) {
	ts := startTestServer(t)

	u, err := url.Parse(ts.URL)
	if err != nil {
		t.Fatal(err)
	}

	v, err := getEnvValueFromHTTP(
		fmt.Sprintf("env://minio:minio123@%s/webhook/v1/getenv/default/minio",
			u.Host),
		"MINIO_ARGS")
	if err != nil {
		t.Fatal(err)
	}

	if v != "http://127.0.0.{1..4}:9000/data{1...4}" {
		t.Fatalf("Unexpected value %s", v)
	}
}