package domain

import (
	"strconv"
	"time"
)

// EventSource identifies the source of an event.
type EventSource string

const (
	SourceA EventSource = "A" // Apache/HTTP source
	SourceB EventSource = "B" // Network source
)

// NormalizedEvent represents a unified internal event from either source.
type NormalizedEvent struct {
	Source       EventSource
	Timestamp    time.Time
	SrcIP        string
	SrcPort      int
	DstIP        string
	DstPort      int
	Headers      map[string]string
	Extra        map[string]any
	Raw          map[string]any // Original raw data
	KeepAliveSeq int            // Request sequence number within the Keep-Alive connection (1-based)
}

// CorrelationKey returns the key used for correlation (src_ip + src_port).
func (e *NormalizedEvent) CorrelationKey() string {
	return e.SrcIP + ":" + strconv.Itoa(e.SrcPort)
}