package calendartest

import (
	"context"
	"net/http"
	"strings"
	"testing"
	"time"

	calendar "amadan.net/oficina/calendar/internal/calendar"
)

// Regressions from the code review of the booking branch.

// A line break in a name would reach the mail subject, and the SMTP
// sender refuses a folded header with an error that quotes the whole
// subject — title, name and all — into the log (code review finding 1).
// Refused at the form instead.
func TestANameWithALineBreakIsRefused(t *testing.T) {
	app, _, path, _ := publishedPage(t)
	h := app.Handler()
	_, starts := futureDaySlots(t, h, path)
	rec := strangerPost(t, h, path, holdForm(starts[0], "Jane\nPrivate", "j@example.com"))
	if rec.Code != http.StatusUnprocessableEntity || !strings.Contains(rec.Body.String(), "one line") {
		t.Errorf("a name with a newline: %d", rec.Code)
	}
}

// The host's confirmation carries the booker's note (spec §6); the
// booker's mail never carries anything but their own words back.
func TestTheHostsConfirmationCarriesTheNote(t *testing.T) {
	app, mailer, path, _ := publishedPage(t)
	h := app.Handler()
	_, starts := futureDaySlots(t, h, path)
	form := holdForm(starts[0], "Doc", "doc@tito.io")
	form.Set("note", "Bring the folder")
	strangerPost(t, h, path, form)
	link := reManage.FindString(mailer.body(0))
	strangerPost(t, h, link+"/confirm", nil)
	if !strings.Contains(mailer.body(1), "Bring the folder") {
		t.Errorf("the host's mail lacks the note:\n%s", mailer.body(1))
	}
}

// The reschedule picker shows the booking's snapshotted title, not the
// page's live one (B20).
func TestTheReschedulePickerShowsTheSnapshot(t *testing.T) {
	app, mailer, path, host := publishedPage(t)
	h := app.Handler()
	_, starts := futureDaySlots(t, h, path)
	strangerPost(t, h, path, holdForm(starts[0], "Doc", "doc@tito.io"))
	link := reManage.FindString(mailer.body(0))
	strangerPost(t, h, link+"/confirm", nil)
	st := app.StoreForTest()
	pages, _ := st.BookingPages(context.Background(), host.ID)
	ws, _ := calendar.ParseAvailability("every day 9-5")
	if err := st.UpdateBookingPage(context.Background(), host.ID, pages[0].ID, calendar.BookingPageInput{
		Title: "Renamed page", Availability: "every day 9-5", DurationMin: 30, HorizonDays: 30}, ws); err != nil {
		t.Fatal(err)
	}
	body := strangerGet(t, h, link+"/reschedule").Body.String()
	if strings.Contains(body, "Renamed page") || !strings.Contains(body, "Quick chat") {
		t.Error("the reschedule picker shows the page's live title, not the booking's snapshot")
	}
}

// A hold mail that is still owed when the booker confirms (the first
// try failed, or was ambiguous) is retired unsent, not delivered as an
// invitation to confirm what is already confirmed (B19).
func TestAnOwedHoldMailIsRetiredOnceConfirmed(t *testing.T) {
	t.Setenv("CARLOS_ADMIN_TOKEN", "test-token")
	app, mailer, path, _ := publishedPage(t)
	h := app.Handler()
	_, starts := futureDaySlots(t, h, path)
	mailer.refuse = "doc@tito.io"
	strangerPost(t, h, path, holdForm(starts[0], "Doc", "doc@tito.io"))
	mailer.refuse = ""
	// The hold mail is owed; confirm through the store, as the booker
	// who somehow got the link would.
	var id int64
	app.DBForTest().QueryRow(`SELECT id FROM bookings`).Scan(&id)
	if _, err := app.StoreForTest().ConfirmBooking(context.Background(), id, time.Now()); err != nil {
		t.Fatal(err)
	}
	app.DBForTest().Exec(`UPDATE booking_mails SET due_at = ? WHERE sent_at IS NULL`, time.Now().Add(-time.Second).Unix())
	tick(t, h)
	for i := 0; i < mailer.count(); i++ {
		if strings.Contains(mailer.body(i), "confirm it here") {
			t.Error("the drain sent a hold mail for a booking already confirmed")
		}
	}
}