Files

100 lines
2.9 KiB
Go

package main
import (
"context"
"errors"
"fmt"
"log"
"os"
"os/signal"
"strconv"
"strings"
"syscall"
"time"
"gitea.kazu634.com/kazu634/tver/internal/store"
"gitea.kazu634.com/kazu634/tver/internal/tver"
workerpkg "gitea.kazu634.com/kazu634/tver/internal/worker"
"github.com/jackc/pgx/v5/pgxpool"
)
const staleAfter = 30 * time.Second
func main() {
ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
defer stop()
config, err := loadConfig(os.Getenv)
if err != nil {
log.Fatal(err)
}
pool, err := initializeDatabase(ctx, os.Getenv("DATABASE_URL"), time.Now(), pgxpool.New,
store.Migrate, func(ctx context.Context, pool *pgxpool.Pool, cutoff time.Time) (int64, error) {
return store.New(pool).RequeueStale(ctx, cutoff)
})
if err != nil {
log.Fatal(err)
}
defer pool.Close()
jobStore := store.New(pool)
runner, err := workerpkg.New(jobStore, config, log.Default())
if err != nil {
log.Fatal(err)
}
tverClient, err := tver.NewClient("", nil)
if err != nil {
log.Fatal(err)
}
scheduler, err := workerpkg.NewSubscriptionScheduler(jobStore, tverClient,
workerpkg.SubscriptionSchedulerConfig{PreviewMaxSeconds: tver.PreviewMaxSeconds}, log.Default())
if err != nil {
log.Fatal(err)
}
schedulerDone := make(chan struct{})
go func() {
defer close(schedulerDone)
scheduler.Run(ctx)
}()
log.Printf("worker started (concurrency=%d)", config.Concurrency)
if err := runner.Run(ctx); err != nil {
log.Fatal(err)
}
<-schedulerDone
log.Print("worker stopped")
}
func loadConfig(getenv func(string) string) (workerpkg.Config, error) {
concurrency := 1
if value := strings.TrimSpace(getenv("WORKER_CONCURRENCY")); value != "" {
parsed, err := strconv.Atoi(value)
if err != nil || parsed < 1 || parsed > 2 {
return workerpkg.Config{}, errors.New("WORKER_CONCURRENCY は 1 または 2 を指定してください")
}
concurrency = parsed
}
return workerpkg.Config{VideoDir: getenv("VIDEO_DIR"), YTDLPPath: getenv("YT_DLP_PATH"),
FFprobePath: getenv("FFPROBE_PATH"), Concurrency: concurrency}, nil
}
func initializeDatabase(ctx context.Context, databaseURL string, now time.Time,
connect func(context.Context, string) (*pgxpool.Pool, error),
migrate func(context.Context, *pgxpool.Pool) error,
requeue func(context.Context, *pgxpool.Pool, time.Time) (int64, error),
) (*pgxpool.Pool, error) {
if strings.TrimSpace(databaseURL) == "" {
return nil, errors.New("DATABASE_URL が設定されていません")
}
pool, err := connect(ctx, databaseURL)
if err != nil {
return nil, errors.New("DATABASE_URL から接続プールを作成できません")
}
if err := migrate(ctx, pool); err != nil {
pool.Close()
return nil, fmt.Errorf("DB マイグレーションに失敗: %w", err)
}
if _, err := requeue(ctx, pool, now.Add(-staleAfter)); err != nil {
pool.Close()
return nil, fmt.Errorf("停止中ジョブの復帰に失敗: %w", err)
}
return pool, nil
}