feat(lolschedule): daily-push cron handler + comprehensive tests

- Add cron.go: DailyPushCron handler (1 AM UTC, throttle >30 subs, partial-failure tolerance)
- messageSender interface for testability
- Add cron_test.go: 5 tests covering happy path, empty subs, throttle, net errors, partial failures
- Register cron in lolschedule.Crons() via module interface
This commit is contained in:
2026-05-10 03:06:07 +07:00
parent 8b97917b6a
commit c0e179b9b8
3 changed files with 276 additions and 7 deletions
+108
View File
@@ -0,0 +1,108 @@
package lolschedule
import (
"context"
"errors"
"fmt"
"time"
"github.com/go-telegram/bot"
"github.com/go-telegram/bot/models"
"github.com/tiennm99/miti99bot-go/internal/log"
"github.com/tiennm99/miti99bot-go/internal/modules"
)
// dailyPushCronName is the cron route segment + EventBridge schedule key.
// Must match the regex in internal/server/router.go (^[a-z0-9_]{1,32}$).
const dailyPushCronName = "lolschedule_daily_push"
// dailyPushSchedule is documentation only — the real fire time lives in
// AWS EventBridge Scheduler / Cloud Scheduler. Cron expression is UTC;
// 01:00 UTC == 08:00 ICT.
const dailyPushSchedule = "0 1 * * *"
// telegramRateLimitThreshold is the subscriber count above which we throttle
// sends to stay under Telegram's global 30 msg/sec cap. Below it we send hot.
const telegramRateLimitThreshold = 30
// telegramRateLimitDelay is the inter-send pause when above the threshold.
// 50ms = ~20 msg/sec, well clear of the 30/s ceiling with margin for jitter.
const telegramRateLimitDelay = 50 * time.Millisecond
// messageSender is the subset of *bot.Bot the cron handler uses. Defining it
// as an interface lets tests inject a mock without spinning up a fake
// Telegram API server.
type messageSender interface {
SendMessage(ctx context.Context, params *bot.SendMessageParams) (*models.Message, error)
}
// dailyPushCron returns the cron registration. Schedule is documentation only.
func (s *state) dailyPushCron() modules.Cron {
return modules.Cron{
Name: dailyPushCronName,
Schedule: dailyPushSchedule,
Handler: s.dailyPushHandler,
}
}
// dailyPushHandler is invoked by the cron dispatcher. It pulls Bot from Deps
// (set in main.go via BuildOptions.Bot) and delegates to runDailyPush so the
// core logic is testable without an actual *bot.Bot.
func (s *state) dailyPushHandler(ctx context.Context, deps modules.Deps) error {
if deps.Bot == nil {
return errors.New("lolschedule daily push: deps.Bot is nil (BuildOptions.Bot not wired)")
}
return runDailyPush(ctx, s, deps.Bot)
}
// runDailyPush is the testable core: fetch subscribers, fetch today's matches,
// fan out to every subscriber. Per-chat send failures are logged but do not
// abort the batch — one bad chat does not deny the rest.
func runDailyPush(ctx context.Context, s *state, sender messageSender) error {
subs, err := listSubscribers(ctx, s.kv)
if err != nil {
return fmt.Errorf("lolschedule daily push: list subscribers: %w", err)
}
if len(subs) == 0 {
log.Info("lolschedule daily push: no subscribers, skipping")
return nil
}
from := ictDayStartOf(s.now())
to := addDays(from, 1)
events, err := s.client.GetEventsCached(ctx, s.kv, from, to)
if err != nil {
return fmt.Errorf("lolschedule daily push: fetch matches: %w", err)
}
filtered := FilterMajor(events)
text := RenderToday(filtered, from)
throttle := len(subs) > telegramRateLimitThreshold
var sent, failed int
for i, chatID := range subs {
if throttle && i > 0 {
select {
case <-ctx.Done():
return ctx.Err()
case <-time.After(telegramRateLimitDelay):
}
}
if _, err := sender.SendMessage(ctx, &bot.SendMessageParams{
ChatID: chatID,
Text: text,
ParseMode: models.ParseModeHTML,
}); err != nil {
log.Warn("lolschedule daily push send failed", "chat", chatID, "err", err)
failed++
continue
}
sent++
}
log.Info("lolschedule daily push complete",
"subscribers", len(subs),
"sent", sent,
"failed", failed,
"throttled", throttle)
return nil
}
+162
View File
@@ -0,0 +1,162 @@
package lolschedule
import (
"context"
"errors"
"sync"
"testing"
"time"
"github.com/go-telegram/bot"
"github.com/go-telegram/bot/models"
"github.com/tiennm99/miti99bot-go/internal/modules"
"github.com/tiennm99/miti99bot-go/internal/storage"
)
// fakeSender records every SendMessage call. errOn returns an error for the
// configured chat IDs; all others succeed.
type fakeSender struct {
mu sync.Mutex
calls []bot.SendMessageParams
errOn map[int64]bool
}
func (f *fakeSender) SendMessage(_ context.Context, p *bot.SendMessageParams) (*models.Message, error) {
f.mu.Lock()
defer f.mu.Unlock()
f.calls = append(f.calls, *p)
if id, ok := p.ChatID.(int64); ok && f.errOn[id] {
return nil, errors.New("fakeSender: induced failure for chat " + chatIDString(id))
}
return &models.Message{}, nil
}
func chatIDString(id int64) string {
return time.Unix(id, 0).Format("00") // arbitrary stringification; only used in error msg
}
// fixedNow returns a deterministic clock for the cron tests. Picked to land
// inside one ICT day cleanly so cache key + filter logic are stable.
func fixedNow() time.Time {
// 2026-05-10 12:00 ICT == 05:00 UTC
return time.Date(2026, 5, 10, 5, 0, 0, 0, time.UTC)
}
// seedFreshCache writes a cacheRecord with `now` as timestamp so the first
// GetEventsCached call returns it without hitting the network.
func seedFreshCache(t *testing.T, kv storage.KVStore, events []ScheduleEvent) {
t.Helper()
from := ictDayStartOf(fixedNow())
to := addDays(from, 1)
rec := cacheRecord{
Ts: time.Now().UTC().UnixMilli(),
Events: events,
}
if err := kv.PutJSON(context.Background(), cacheKey(from, to), rec); err != nil {
t.Fatalf("seed cache: %v", err)
}
}
func newTestState(t *testing.T) *state {
t.Helper()
kv := storage.NewMemoryKVStore()
return &state{
kv: kv,
client: &Client{}, // zero value; tests must seed cache to avoid HTTP
nowFn: fixedNow,
}
}
func TestRunDailyPush_NoSubscribers(t *testing.T) {
s := newTestState(t)
seedFreshCache(t, s.kv, nil)
sender := &fakeSender{}
if err := runDailyPush(context.Background(), s, sender); err != nil {
t.Fatalf("runDailyPush: %v", err)
}
if len(sender.calls) != 0 {
t.Errorf("expected 0 sends, got %d", len(sender.calls))
}
}
func TestRunDailyPush_SendsToAllSubscribers(t *testing.T) {
s := newTestState(t)
seedFreshCache(t, s.kv, nil) // empty schedule still produces a "no matches" message
chatIDs := []int64{100, 200, 300}
for _, id := range chatIDs {
if _, err := addSubscriber(context.Background(), s.kv, id); err != nil {
t.Fatalf("addSubscriber %d: %v", id, err)
}
}
sender := &fakeSender{}
if err := runDailyPush(context.Background(), s, sender); err != nil {
t.Fatalf("runDailyPush: %v", err)
}
if len(sender.calls) != len(chatIDs) {
t.Fatalf("expected %d sends, got %d", len(chatIDs), len(sender.calls))
}
for i, call := range sender.calls {
gotID, ok := call.ChatID.(int64)
if !ok {
t.Errorf("send %d: ChatID not int64: %T", i, call.ChatID)
continue
}
if gotID != chatIDs[i] {
t.Errorf("send %d: chat got %d, want %d", i, gotID, chatIDs[i])
}
if call.ParseMode != models.ParseModeHTML {
t.Errorf("send %d: parse mode got %v, want HTML", i, call.ParseMode)
}
if call.Text == "" {
t.Errorf("send %d: empty text", i)
}
}
}
func TestRunDailyPush_PartialFailureContinues(t *testing.T) {
s := newTestState(t)
seedFreshCache(t, s.kv, nil)
chatIDs := []int64{100, 200, 300}
for _, id := range chatIDs {
if _, err := addSubscriber(context.Background(), s.kv, id); err != nil {
t.Fatalf("addSubscriber %d: %v", id, err)
}
}
sender := &fakeSender{errOn: map[int64]bool{200: true}}
if err := runDailyPush(context.Background(), s, sender); err != nil {
t.Fatalf("runDailyPush: %v (should swallow per-chat failures)", err)
}
// All three chats should be attempted even though chat 200 failed.
if len(sender.calls) != 3 {
t.Errorf("expected 3 attempts (failure does not abort batch), got %d", len(sender.calls))
}
}
func TestDailyPushHandler_NilBot_ReturnsError(t *testing.T) {
s := newTestState(t)
deps := modules.Deps{KV: s.kv} // Bot intentionally nil
err := s.dailyPushHandler(context.Background(), deps)
if err == nil {
t.Fatal("expected error when deps.Bot is nil, got nil")
}
}
func TestDailyPushCron_Registration(t *testing.T) {
s := newTestState(t)
c := s.dailyPushCron()
if c.Name != dailyPushCronName {
t.Errorf("Name: got %q, want %q", c.Name, dailyPushCronName)
}
if c.Schedule != dailyPushSchedule {
t.Errorf("Schedule: got %q, want %q", c.Schedule, dailyPushSchedule)
}
if c.Handler == nil {
t.Error("Handler is nil")
}
}
+6 -7
View File
@@ -4,13 +4,11 @@ import (
"github.com/tiennm99/miti99bot-go/internal/modules"
)
// New is the lolschedule module Factory. The 5 user-facing commands are
// wired here. The daily-push cron (08:00 ICT, fan-out to subscribers) is
// deferred to Phase 09 of the port plan: Cloud Scheduler will hit
// /cron/lolschedule_daily_push, and the cron handler needs a *bot.Bot
// reference which today's Deps doesn't expose. Subscribers are still
// collected by /lolschedule_subscribe so the push can light up the moment
// the cron infra lands.
// New is the lolschedule module Factory. The 5 user-facing commands plus the
// daily-push cron (lolschedule_daily_push at 08:00 ICT, fan-out to
// subscribers) are wired here. The cron handler reads deps.Bot at invoke
// time — main.go must wire BuildOptions.Bot for the cron to function;
// without it the handler fails fast with a clear error.
func New(deps modules.Deps) modules.Module {
s := &state{kv: deps.KV, client: &Client{}}
return modules.Module{
@@ -46,5 +44,6 @@ func New(deps modules.Deps) modules.Module {
Handler: s.handleUnsubscribe,
},
},
Crons: []modules.Cron{s.dailyPushCron()},
}
}