new-server/app/services/events.go

package services

import (
	"context"
	"fmt"
	"git.aiterp.net/lucifer/new-server/app/config"
	"git.aiterp.net/lucifer/new-server/models"
	"log"
	"strconv"
	"strings"
	"time"
)

func StartEventHandler() {
	config.EventChannel<-models.Event{Name: "LuciferStarted"}

	go func() {
		for event := range config.EventChannel {
			handleEvent(event)
		}
	}()

	// Generate TimeChanged event
	go func() {
		drift := time.Now().Add(time.Minute).Truncate(time.Minute).Sub(time.Now())
		time.Sleep(drift + time.Millisecond * 5)

		for range time.NewTicker(time.Minute).C {
			config.EventChannel <- models.Event{Name: "TimeChanged"}
		}
	}()
}

var loc, _ = time.LoadLocation("Europe/Oslo")
var ctx = context.Background()
var X = false

func handleEvent(event models.Event) {
	if !event.HasPayload("hour") {
		event.AddPayload("hour", time.Now().In(loc).Format("15"))
	}
	if !event.HasPayload("minute") {
		event.AddPayload("minute", time.Now().In(loc).Format("04"))
	}

	err := handleSpecial(event)
	if err != nil {
		log.Printf("Special event handler error (%s): %v", event.Name, err)
		return
	}

	if !X {
		paramStrings := make([]string, 0, 8)
		for key, value := range event.Payload {
			paramStrings = append(paramStrings, fmt.Sprintf("%s=%s", key, value))
		}

		log.Printf("Unhandled event %s(%s)", event.Name, strings.Join(paramStrings, ", "))
		return
	}

	handlers, err := config.EventHandlerRepository().FetchAll(ctx)
	if err != nil {
		log.Printf("Error fetchin event halders: %d", err)
		return
	}

	for _, handler := range handlers {
		devices, err := config.DeviceRepository().FetchByReference(ctx, handler.TargetKind, handler.TargetValue)
		if err != nil {
			log.Printf("Error fetchin event halders: %d", err)
			return
		}

		if !handler.MatchesEvent(event, devices) {
			continue
		}
	}
}

func handleSpecial(event models.Event) error {
	switch event.Name {
	case models.ENBridgeConnected:
		bridgeId, _ := strconv.Atoi(event.Payload["bridgeId"])
		bridge, err := config.BridgeRepository().Find(ctx, bridgeId)
		if err != nil {
			return err
		}

		devices, err := config.DeviceRepository().FetchByReference(ctx, models.RKBridgeID, event.Payload["bridgeId"])
		if err != nil {
			return err
		}

		driver, err := config.DriverProvider().Provide(bridge.Driver)
		if err != nil {
			return err
		}

		return driver.Publish(ctx, bridge, devices)
	default:
		return nil
	}
}