// alert-test sends one clearly marked test alert through every channel
// configured in the environment (see internal/alerts.ConfigFromEnv), so a new
// Telegram token / chat id or webhook can be verified. It never prints secrets.
package main

import (
	"context"
	"fmt"
	"os"
	"time"

	"git.tornberg.me/go-otel/internal/alerts"
	"git.tornberg.me/go-otel/internal/features"
)

func main() {
	cfg := alerts.ConfigFromEnv()
	notifiers := cfg.Notifiers()
	if len(notifiers) == 0 {
		fmt.Fprintln(os.Stderr, "no channel configured (TELEGRAM_KEY + TELEGRAM_CHATID, or OTEL_ALERT_WEBHOOK_URL)")
		os.Exit(2)
	}
	now := time.Now().UTC()
	a := alerts.NewAlert(features.Spike{Service: "alert-test", WindowStart: now.Add(-5 * time.Minute), WindowEnd: now, ErrorCount: 42, BaselineMean: 1, Excess: 41,
		Patterns: []features.PatternDelta{{Signature: "test", Count: 42, BaselineMean: 1, Excess: 41, Novel: true, Clients: 3,
			Example: features.Event{Service: "alert-test", Kind: "span", StatusCode: 500, Route: "/api/example", Message: "this is a test alert from otel-debug"}}}}, now)
	a.Test = true
	failed := false
	for _, n := range notifiers {
		ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
		err := n.Send(ctx, a)
		cancel()
		if err != nil {
			fmt.Printf("%s: FAILED: %v\n", n.Name(), err)
			failed = true
			continue
		}
		fmt.Printf("%s: sent\n", n.Name())
	}
	if failed {
		os.Exit(1)
	}
}