init

cmd/daily/main.go

@@ -0,0 +1,41 @@
+// Command daily runs one simulated day against the database. Schedule it
+// once a day (cron/systemd timer).
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log"
+
+	"wh/config"
+	"wh/runner"
+	"wh/store"
+)
+
+func main() {
+	dsn := flag.String("db", config.DatabaseURL(), "sqlite:<path> or postgres:// URL (default: $DATABASE_URL)")
+	cfg, err := config.Bind(flag.CommandLine)
+	if err != nil {
+		log.Fatal(err)
+	}
+	flag.Parse()
+
+	ctx := context.Background()
+	st, err := store.Open(*dsn)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer st.Close()
+	if err := st.Migrate(ctx); err != nil {
+		log.Fatal(err)
+	}
+	res, err := runner.RunNextDay(ctx, st, *cfg)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("day %d complete: %d events, %d downlinks, hash %x\n", res.Day, len(res.Events), len(res.Downlinks), res.Hash[:8])
+	for _, e := range res.Events {
+		fmt.Println("  ", e)
+	}
+}