114 lines
3.1 KiB
Go
114 lines
3.1 KiB
Go
package main
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import (
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"context"
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"fmt"
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"log"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"time"
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"github.com/joho/godotenv"
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"github.com/kjannette/koin-ping/backend-go/internal/config"
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"github.com/kjannette/koin-ping/backend-go/internal/database"
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"github.com/kjannette/koin-ping/backend-go/internal/models"
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"github.com/kjannette/koin-ping/backend-go/internal/protocols/ethereum"
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"github.com/kjannette/koin-ping/backend-go/internal/services"
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)
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func main() {
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_ = godotenv.Load()
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cfg, err := config.Load()
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if err != nil {
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log.Fatalf("Failed to load config: %v", err)
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}
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if cfg.EthRPCURL == "" {
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log.Fatal("ERROR: ETH_RPC_URL environment variable is required")
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}
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pool, err := database.Connect(cfg.DSN())
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if err != nil {
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log.Fatalf("Failed to connect to database: %v", err)
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}
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defer database.Close()
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eth, err := ethereum.NewJsonRpcEthereum(cfg.EthRPCURL)
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if err != nil {
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log.Fatalf("Failed to create Ethereum observer: %v", err)
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}
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addressModel := models.NewAddressModel(pool)
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alertRuleModel := models.NewAlertRuleModel(pool)
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alertEventModel := models.NewAlertEventModel(pool)
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checkpointModel := models.NewCheckpointModel(pool)
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notifConfigModel := models.NewNotificationConfigModel(pool)
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observer := services.NewObserverService(eth, addressModel, checkpointModel)
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evaluator := services.NewEvaluatorService(eth, alertRuleModel, alertEventModel, addressModel, notifConfigModel)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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sigCh := make(chan os.Signal, 1)
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signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
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go func() {
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<-sigCh
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log.Println()
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log.Println(strings.Repeat("=", 60))
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log.Println("Shutting down poller gracefully...")
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log.Println(strings.Repeat("=", 60))
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cancel()
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}()
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interval := time.Duration(cfg.PollIntervalMS) * time.Millisecond
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log.Println(strings.Repeat("=", 60))
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log.Println("Koin Ping Observer Poller Starting")
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log.Println(strings.Repeat("=", 60))
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log.Printf("RPC URL: %s", cfg.EthRPCURL)
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log.Printf("Poll Interval: %dms (%ds)", cfg.PollIntervalMS, cfg.PollIntervalMS/1000)
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log.Println(strings.Repeat("=", 60))
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runCycle(ctx, observer, evaluator)
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ticker := time.NewTicker(interval)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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log.Println("Poller stopped")
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return
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case <-ticker.C:
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runCycle(ctx, observer, evaluator)
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}
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}
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}
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func runCycle(ctx context.Context, observer *services.ObserverService, evaluator *services.EvaluatorService) {
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startTime := time.Now()
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log.Printf("[%s] Starting observation cycle...", time.Now().UTC().Format(time.RFC3339))
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observations, err := observer.RunOnce(ctx)
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if err != nil {
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log.Printf("[%s] Observation cycle failed: %v", time.Now().UTC().Format(time.RFC3339), err)
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return
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}
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alertsFired, err := evaluator.Evaluate(ctx, observations)
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if err != nil {
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log.Printf("[%s] Evaluation failed: %v", time.Now().UTC().Format(time.RFC3339), err)
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return
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}
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duration := time.Since(startTime)
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log.Printf("[%s] Cycle complete: %d observations, %d alerts fired in %s",
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time.Now().UTC().Format(time.RFC3339),
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len(observations), alertsFired,
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fmt.Sprintf("%dms", duration.Milliseconds()))
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}
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