package main

import (
	"context"
	"flag"
	"log"
	"os"
	"os/signal"
	"sync"
	"syscall"

	"tianyan-edge/internal/config"
	"tianyan-edge/internal/control"
	"tianyan-edge/internal/event"
	"tianyan-edge/internal/infer"
	"tianyan-edge/internal/stream"
)

func main() {
	cfgPath := flag.String("config", "/opt/tianyan-edge/config/edge.yaml", "config file")
	flag.Parse()

	cfg := config.Load(*cfgPath)
	log.Printf("edge-agent start id=%s uuid=%s cloud=%s mqtt=%s",
		cfg.EdgeID, cfg.GetDeviceIdentity(), cfg.CloudURL, cfg.MqttBroker)

	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
	defer cancel()

	frames := make(chan stream.Frame, 100)
	events := make(chan event.SuspectedEvent, 500)

	var wg sync.WaitGroup
	run := func(fn func(context.Context)) {
		wg.Add(1)
		go func() {
			defer wg.Done()
			fn(ctx)
		}()
	}

	// 1. Cloud Communication
	mqttMgr := control.NewMqttManager(cfg)
	run(mqttMgr.Run)

	// 2. Stream Ingestion (Dynamic)
	run(stream.NewStreamManager(cfg, frames, mqttMgr.GetUpdates()).Run)

	// 3. Inference (Dynamic Workers)
	run(infer.NewClient(cfg, frames, events, mqttMgr.GetUpdates()).Run)

	// 4. Event Upload
	run(event.NewUploader(cfg, events).Run)

	// 5. Heartbeat
	run(control.NewHeartbeat(cfg).Run)

	// 6. OTA Update
	run(control.NewOTAAgent(cfg).Run)

	wg.Wait()
	log.Println("edge-agent stop")
}