package api

import (
	"fmt"
	"strings"

	"tera-clone/services/tera-api/internal/domain"
	"tera-clone/services/tera-api/internal/logpolicy"
)

func portLogDisplay(event domain.PortLogEvent) domain.PortLogEvent {
	if len(event.Payload) == 0 {
		return event
	}
	text, redacted := logpolicy.SanitizeMultiline(strings.ToValidUTF8(string(event.Payload), "�"), logpolicy.MaxSerialPayloadBytes)
	event.Redacted = event.Redacted || redacted
	bytes := event.Payload
	if event.Redacted {
		bytes = []byte(text)
	}
	ascii := strings.ReplaceAll(strings.ReplaceAll(text, "\r\n", "\n"), "\r", "\n")
	switch event.DisplayFormat {
	case "hex":
		event.DisplayText = fmt.Sprintf("% X", bytes)
	case "ascii_hex":
		event.DisplayText = "ASCII\n" + ascii + "\nHEX\n" + fmt.Sprintf("% X", bytes)
	default:
		event.DisplayText = ascii
	}
	// Raw bytes remain in the journal; API responses expose only the sanitized view.
	event.Payload = nil
	return event
}