package test

import (
	"context"
	"encoding/json"
	"fmt"
	"git.sxidc.com/service-supports/dapr_api/pubsub"
	"git.sxidc.com/service-supports/dapr_api/utils"
	"io"
	"net/http"
	"sync"
	"testing"
	"time"
)

const (
	pubSubServerAddress = "localhost:10081"

	sendMessageMaxCount = 3
	pubsubName          = "dapr_pubsub"
	topic               = "test_pubsub"
)

func TestPubSub(t *testing.T) {
	api := pubsub.NewAPI(daprHttpPort, 10*time.Second)
	defer pubsub.DestroyAPI(api)

	sendMessageCount := 0

	wgServer := &sync.WaitGroup{}
	wgServer.Add(1)
	srv := initPubSubHttpServer(wgServer, &sendMessageCount)
	wgServer.Wait()

	go func() {
		for sendMessageCount < sendMessageMaxCount {
			data, err := json.Marshal(map[string]interface{}{"data": utils.SimpleUUID()})
			if err != nil {
				fmt.Println(err)
				continue
			}

			err = api.Publish(pubsubName, topic, string(data), nil)
			if err != nil {
				fmt.Println(err)
				continue
			}

			time.Sleep(1 * time.Second)
		}
	}()

	for sendMessageCount < sendMessageMaxCount {
		time.Sleep(1 * time.Second)
	}

	_ = srv.Shutdown(context.Background())
}

func TestPubSubJson(t *testing.T) {
	api := pubsub.NewAPI(daprHttpPort, 10*time.Second)
	defer pubsub.DestroyAPI(api)

	sendMessageCount := 0

	wgServer := &sync.WaitGroup{}
	wgServer.Add(1)
	srv := initPubSubHttpServer(wgServer, &sendMessageCount)
	wgServer.Wait()

	go func() {
		for sendMessageCount < sendMessageMaxCount {
			data, err := json.Marshal(map[string]interface{}{"data": utils.SimpleUUID()})
			if err != nil {
				fmt.Println(err)
				continue
			}

			err = api.PublishJSON(pubsubName, topic, string(data), nil)
			if err != nil {
				fmt.Println(err)
				continue
			}

			time.Sleep(1 * time.Second)
		}
	}()

	for sendMessageCount < sendMessageMaxCount {
		time.Sleep(1 * time.Second)
	}

	_ = srv.Shutdown(context.Background())
}

func initPubSubHttpServer(wg *sync.WaitGroup, sendMessageCount *int) *http.Server {
	mux := http.NewServeMux()
	mux.HandleFunc("/test_pubsub", func(w http.ResponseWriter, r *http.Request) {
		body, err := io.ReadAll(r.Body)
		if err != nil {
			fmt.Println(err)
			w.WriteHeader(http.StatusOK)
		}

		fmt.Println("Receive", string(body))

		*sendMessageCount++

		w.WriteHeader(http.StatusOK)
	})

	srv := &http.Server{
		Addr:    pubSubServerAddress,
		Handler: mux,
	}

	go func() {
		wg.Done()
		err := srv.ListenAndServe()
		if err != nil && err != http.ErrServerClosed {
			panic(err)
		}
	}()

	return srv
}