package api

import (
	"io"
	"log/slog"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func TestUpdateNotificationEmail_Rejects(t *testing.T) {
	// No pool: every case is refused before the database is reached.
	h := &handlers{logger: slog.New(slog.NewTextHandler(io.Discard, nil))}
	for name, tc := range map[string]struct {
		body     string
		code     string
		mentions string
	}{
		"an hour past 23":     {body: `{"summary_hour":24,"batch_window_minutes":60}`, code: "invalid_setting", mentions: "summary_hour"},
		"a window under 15m":  {body: `{"summary_hour":9,"batch_window_minutes":5}`, code: "invalid_setting", mentions: "batch_window_minutes"},
		"a body missing both": {body: `{}`, code: "invalid_setting", mentions: "batch_window_minutes"},
		"malformed JSON":      {body: `{"summary_hour":`, code: "invalid_body"},
	} {
		rec := httptest.NewRecorder()
		h.handleUpdateNotificationEmail(rec, httptest.NewRequest(
			http.MethodPut, "/api/admin/notification-email", strings.NewReader(tc.body)))
		body := rec.Body.String()
		if rec.Code != http.StatusBadRequest || !strings.Contains(body, `"`+tc.code+`"`) || !strings.Contains(body, tc.mentions) {
			t.Errorf("%s: status %d body %s; want 400 %s mentioning %q", name, rec.Code, body, tc.code, tc.mentions)
		}
	}
}