// Package notifytest catches notifications in tests.
package notifytest

import (
	"encoding/json"
	"io"
	"net/http"
	"net/http/httptest"
	"sync"
	"testing"

	"gitea.mynodes.xyz/ilker/llmgw/internal/notify"
)

// Catch returns a notifier whose webhook records what it is sent, and a func
// that waits for the sending and returns the events. The notifier takes no
// more events once that func is called.
func Catch(t *testing.T) (*notify.Notifier, func() []notify.Event) {
	t.Helper()
	var mu sync.Mutex
	var got []notify.Event
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
		b, _ := io.ReadAll(req.Body)
		var e notify.Event
		_ = json.Unmarshal(b, &e)
		mu.Lock()
		got = append(got, e)
		mu.Unlock()
	}))
	t.Cleanup(srv.Close)
	n, err := notify.New(t.Context(), notify.Config{Webhooks: []notify.Webhook{{URL: srv.URL}}}, nil)
	if err != nil {
		t.Fatal(err)
	}
	return n, func() []notify.Event {
		n.Wait()
		mu.Lock()
		defer mu.Unlock()
		return got
	}
}