router: read the hour he said out loud (V-469)

"напомни мне позвонить маме в семь вечера" answered "не получилось разобрать
время напоминания", while "в 19:00" set the reminder. Reminders arrive through
speech, and speech says the hour in words, so this was the ordinary case
failing and the typed one working.

SpellOutDigits rewrites a spoken number as digits, but only when a time word
stands beside it — "в три часа" becomes "в 3 часа" and "купить три яблока" is
left alone. Both parsers see it: dateparser already rewrites "7 вечера" to
"7 pm" and never saw a digit to rewrite, and the stub floor now reads the
qualifier itself.

internal/router/dateparser.go

@@ -81,6 +81,9 @@ func NewPythonDateParser() *PythonDateParser {
 // or dateparser is unavailable, falls back to the stub parser. Returns
 // (time, true, nil) on success; (zero, false, nil) when no date is found.
 func (p *PythonDateParser) Parse(ctx context.Context, text string, now time.Time) (time.Time, bool, error) {
+	// Speech says the hour in words, and neither this parser nor the stub
+	// reads "в семь вечера" (Vikunja #469). Both see the digits instead.
+	text = SpellOutDigits(text)
 	t, ok, err := p.parseWithPython(ctx, text, now)
 	if err != nil {
 		// python3 missing, dateparser not installed, or process failure —

internal/router/numwords.go

@@ -0,0 +1,97 @@
+package router
+
+import "strings"
+
+// ruNumerals — spoken numbers as digits, for the clock hours and the minutes
+// that follow them. Every case ending he might say is listed rather than
+// stemmed: "в семь", "к семи", "около семи" are three forms of one hour, and a
+// prefix rule short enough to cover them also matches "семья".
+//
+// Stops at thirty, which is as far as a spoken time goes ("без двадцати
+// восемь", "в половине шестого"). Anything larger is said in digits.
+var ruNumerals = map[string]string{
+	"один": "1", "одного": "1", "одну": "1", "час": "1", "часу": "1",
+	"два": "2", "две": "2", "двух": "2",
+	"три": "3", "трёх": "3", "трех": "3",
+	"четыре": "4", "четырёх": "4", "четырех": "4",
+	"пять": "5", "пяти": "5",
+	"шесть": "6", "шести": "6",
+	"семь": "7", "семи": "7",
+	"восемь": "8", "восьми": "8",
+	"девять": "9", "девяти": "9",
+	"десять": "10", "десяти": "10",
+	"одиннадцать": "11", "одиннадцати": "11",
+	"двенадцать": "12", "двенадцати": "12",
+	"тринадцать": "13", "тринадцати": "13",
+	"четырнадцать": "14", "четырнадцати": "14",
+	"пятнадцать": "15", "пятнадцати": "15",
+	"шестнадцать": "16", "шестнадцати": "16",
+	"семнадцать": "17", "семнадцати": "17",
+	"восемнадцать": "18", "восемнадцати": "18",
+	"девятнадцать": "19", "девятнадцати": "19",
+	"двадцать": "20", "двадцати": "20",
+	"тридцать": "30", "тридцати": "30",
+	"сорок": "40", "сорока": "40",
+	"пятьдесят": "50", "пятидесяти": "50",
+}
+
+// numeralContext — the words that make a numeral a time. A numeral is only
+// rewritten when one of these sits next to it, so "три яблока" in a note is
+// left alone and "в три часа" is not.
+var numeralContext = map[string]bool{
+	"в": true, "во": true, "к": true, "около": true, "на": true,
+	"часа": true, "часов": true, "час": true, "часу": true,
+	"утра": true, "вечера": true, "дня": true, "ночи": true,
+	"минут": true, "минуты": true, "минуту": true,
+	"at": true, "by": true,
+}
+
+// SpellOutDigits rewrites spoken numbers as digits so the date parsers see the
+// shape they know.
+//
+// "напомни мне позвонить маме в семь вечера" parsed to nothing, while "в 19:00"
+// parsed fine (Vikunja #469). Speech is where reminders come from, and speech
+// says the hour in words, so this is not a long-tail case — it is the ordinary
+// one. dateparser reads "в 7 вечера" through the qualifier rewrite the python
+// script already does; it does not read "в семь вечера".
+//
+// Conservative by construction: a numeral is only rewritten when a time word
+// stands beside it. "три часа" becomes "3 часа"; "три яблока" stays as it is,
+// and a note or a fact carrying a spoken number is untouched.
+func SpellOutDigits(text string) string {
+	toks := strings.Fields(text)
+	if len(toks) == 0 {
+		return text
+	}
+	out := make([]string, len(toks))
+	copy(out, toks)
+	for i, tok := range toks {
+		key := strings.ToLower(strings.Trim(tok, ".,!?;:«»\"'"))
+		digit, ok := ruNumerals[key]
+		if !ok {
+			continue
+		}
+		// "час" and "часу" are the hour noun as often as they are the number
+		// one, and rewriting "в час дня" to "в 1 дня" is right either way. What
+		// must not happen is rewriting the noun that gives another numeral its
+		// context: "в семь часов" must keep "часов".
+		if !hasTimeNeighbour(toks, i) {
+			continue
+		}
+		out[i] = digit
+	}
+	return strings.Join(out, " ")
+}
+
+// hasTimeNeighbour reports whether the token before or after i is a time word.
+func hasTimeNeighbour(toks []string, i int) bool {
+	for _, j := range []int{i - 1, i + 1} {
+		if j < 0 || j >= len(toks) {
+			continue
+		}
+		if numeralContext[strings.ToLower(strings.Trim(toks[j], ".,!?;:«»\"'"))] {
+			return true
+		}
+	}
+	return false
+}

internal/router/numwords_test.go

@@ -0,0 +1,38 @@
+package router
+
+import (
+	"context"
+	"testing"
+	"time"
+)
+
+func TestSpellOutDigits(t *testing.T) {
+	for _, tc := range []struct{ in, want string }{
+		{"напомни мне позвонить маме в семь вечера", "напомни мне позвонить маме в 7 вечера"},
+		{"в три часа дня", "в 3 часа дня"},
+		{"напомни в половине шестого", "напомни в половине шестого"},
+		{"через двадцать минут", "через 20 минут"},
+		// Untouched: no time word stands beside the number.
+		{"купить три яблока", "купить три яблока"},
+		{"семь раз отмерь", "семь раз отмерь"},
+		{"напомни в 19:00", "напомни в 19:00"},
+		{"", ""},
+	} {
+		if got := SpellOutDigits(tc.in); got != tc.want {
+			t.Errorf("SpellOutDigits(%q) = %q, want %q", tc.in, got, tc.want)
+		}
+	}
+}
+
+// The utterance from the QA sitting that named this bug: the numeric form
+// parsed and the spoken form did not.
+func TestStubParsesASpokenHour(t *testing.T) {
+	now := time.Date(2026, 8, 2, 9, 0, 0, 0, time.Local)
+	got, ok, err := StubDateTimeParser{}.Parse(context.Background(), "напомни мне позвонить маме в семь вечера", now)
+	if err != nil || !ok {
+		t.Fatalf("Parse ok=%v err=%v, want a time", ok, err)
+	}
+	if got.Hour() != 19 {
+		t.Fatalf("hour = %d, want 19", got.Hour())
+	}
+}

internal/router/slots.go

@@ -176,7 +176,7 @@ func afterWord(s, w string) string {
 type StubDateTimeParser struct{}
 
 func (StubDateTimeParser) Parse(_ context.Context, text string, now time.Time) (time.Time, bool, error) {
-	s := strings.ToLower(strings.TrimSpace(text))
+	s := strings.ToLower(strings.TrimSpace(SpellOutDigits(text)))
 	toks := strings.Fields(s)
 	// scan for "in <num> <unit>" anywhere — dateparser extracts the datetime
 	// expression from surrounding text; the stub does the same naively.
@@ -204,14 +204,22 @@ func (StubDateTimeParser) Parse(_ context.Context, text string, now time.Time) (
 
 	// --- Russian time expressions (stub floor; dateparser replaces) ---
 
-	// "в <clock>" anywhere — mirror of the English "at" scan.
+	// "в <clock>" anywhere — mirror of the English "at" scan. A qualifier
+	// after the hour moves it into the afternoon: "в 7 вечера" is 19:00, and
+	// with SpellOutDigits in front of this that is what "в семь вечера" reads
+	// as too (Vikunja #469).
 	for i := 0; i+1 < len(toks); i++ {
 		if toks[i] != "в" {
 			continue
 		}
-		if t, ok := parseClock(toks[i+1], now); ok {
+		t, ok := parseClock(toks[i+1], now)
-			return t, true, nil
+		if !ok {
+			continue
 		}
+		if i+2 < len(toks) {
+			t = applyRuQualifier(t, toks[i+2], now)
+		}
+		return t, true, nil
 	}
 
 	// "через <N> <unit>" / "через <unit>" (bare = 1) / "через полчаса".
@@ -476,3 +484,30 @@ func midnight(now time.Time, days int) time.Time {
 	y, m, d := now.AddDate(0, 0, days).Date()
 	return time.Date(y, m, d, 0, 0, 0, 0, now.Location())
 }
+
+// applyRuQualifier moves an hour into the afternoon when he said "вечера" or
+// "дня" after it. Noon-crossing only: 7 becomes 19, and 19 stays 19. Morning
+// qualifiers need no arithmetic, they only confirm the hour as spoken.
+//
+// The date is recomputed rather than shifted, so an hour that parseClock
+// already pushed to tomorrow does not land two days out.
+func applyRuQualifier(t time.Time, qualifier string, now time.Time) time.Time {
+	h := t.Hour()
+	switch strings.Trim(strings.ToLower(qualifier), ".,!?;:") {
+	case "вечера", "дня":
+		if h < 12 {
+			h += 12
+		}
+	case "утра", "ночи":
+		if h == 12 {
+			h = 0
+		}
+	default:
+		return t
+	}
+	out := time.Date(now.Year(), now.Month(), now.Day(), h, t.Minute(), 0, 0, now.Location())
+	if !out.After(now) {
+		out = out.Add(24 * time.Hour)
+	}
+	return out
+}