package obs

import (
	"context"
	"log/slog"
	"runtime/debug"
)

// SafeGo runs fn in a goroutine with panic recovery: a panic in a background
// task (async telemetry write, retention trim) logs an ERROR with the stack
// and dies alone instead of taking the process down. Вынесено из vojo bot.go —
// без него async-паттерн телеметрии не переносится.
func SafeGo(ctx context.Context, log *slog.Logger, name string, fn func()) {
	go func() {
		defer func() {
			if r := recover(); r != nil {
				log.ErrorContext(ctx, "background task panicked", "task", name, "panic", r, "stack", string(debug.Stack()))
			}
		}()
		fn()
	}()
}