Files
kanban_cpp/backend/main.go
T

76 lines
2.0 KiB
Go

package main
import (
"context"
"encoding/json"
"flag"
"fmt"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"fn-registry/functions/infra"
)
const syncLayerVersion = "v0.1.0"
func main() {
flags := flag.NewFlagSet("kanban_cpp_backend", flag.ExitOnError)
port := flags.Int("port", 8403, "HTTP port")
dbPath := flags.String("db", "operations.db", "SQLite database path")
flagsPath := flags.String("flags", "dev/feature_flags.json", "Feature flags JSON path (missing file → all disabled)")
flags.Parse(os.Args[1:])
featureFlags, err := loadFeatureFlags(*flagsPath)
if err != nil {
log.Fatalf("load feature flags: %v", err)
}
for name, fl := range featureFlags.Flags {
log.Printf("feature flag %q enabled=%v", name, fl.Enabled)
}
db, err := openDB(*dbPath)
if err != nil {
log.Fatalf("open db: %v", err)
}
defer db.Close()
// SSE: hub + fsnotify watcher for dev/issues + dev/flows.
globalHub = NewHub()
startBoardsWatcher(globalHub)
mux := infra.HTTPRouter(apiRoutes(db, &featureFlags))
mux.HandleFunc("/health", handleHealth(*port))
chain := infra.HTTPMiddlewareChain(
infra.HTTPLoggerMiddleware(os.Stdout),
infra.HTTPCORSMiddleware([]string{"*"}, []string{"GET", "POST", "PATCH", "DELETE", "OPTIONS"}),
)
handler := chain(mux)
addr := fmt.Sprintf(":%d", *port)
log.Printf("kanban_cpp_backend starting on http://0.0.0.0%s (sync layer %s)", addr, syncLayerVersion)
log.Printf("database: %s", *dbPath)
ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
defer cancel()
if err := infra.HTTPServe(addr, handler, ctx); err != nil {
log.Fatalf("server: %v", err)
}
}
// handleHealth returns 200 with a small JSON describing the service. No auth.
func handleHealth(port int) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
_ = json.NewEncoder(w).Encode(map[string]any{
"status": "ok",
"port": port,
"sync_layer": syncLayerVersion,
})
}
}