// Copyright 2025 Apollo 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 agollo

import (
	"fmt"
	"net/http"
	"net/http/httptest"
	"strings"

	"github.com/apolloconfig/agollo/v4/env/config"
)

const (
	configSecondResponseStr = `{
    "key1-1":"value1-1",
    "key1-2":"value2-1"
  }`

	configResponseStr = `{
    "key1":"value1",
    "key2":"value2"
  }`
)

// run mock config Files server
func runMockConfigFilesServer(handlerMap map[string]func(http.ResponseWriter, *http.Request),
	notifyHandler func(http.ResponseWriter, *http.Request),
	appConfig *config.AppConfig) *httptest.Server {
	uriHandlerMap := make(map[string]func(http.ResponseWriter, *http.Request), 0)
	for namespace, handler := range handlerMap {
		uri := fmt.Sprintf("/configfiles/json/%s/%s/%s", appConfig.AppID, appConfig.Cluster, namespace)
		uriHandlerMap[uri] = handler
	}

	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		uri := r.RequestURI
		for path, handler := range uriHandlerMap {
			if strings.HasPrefix(uri, path) {
				handler(w, r)
				break
			}
		}
	}))

	return ts
}

// Error response
// will hold 5s and keep response 404
func runErrorResponse() *httptest.Server {
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusNotFound)
	}))

	return ts
}

func onlyNormalConfigResponse(rw http.ResponseWriter, req *http.Request) {
	rw.WriteHeader(http.StatusOK)
	fmt.Fprintf(rw, configResponseStr)
}

func onlyNormalSecondConfigResponse(rw http.ResponseWriter, req *http.Request) {
	rw.WriteHeader(http.StatusOK)
	fmt.Fprintf(rw, configSecondResponseStr)
}
