package appview

import "strings"

// ResolveHoldURL converts a hold identifier (DID or URL) to an HTTP/HTTPS URL
// Handles both formats for backward compatibility:
//   - DID format: did:web:hold01.atcr.io → https://hold01.atcr.io
//   - DID with port: did:web:172.28.0.3:8080 → http://172.28.0.3:8080
//   - URL format: https://hold.example.com → https://hold.example.com (passthrough)
func ResolveHoldURL(holdIdentifier string) string {
	// If it's already a URL (has scheme), return as-is
	if strings.HasPrefix(holdIdentifier, "http://") || strings.HasPrefix(holdIdentifier, "https://") {
		return holdIdentifier
	}

	// If it's a DID, convert to URL
	if strings.HasPrefix(holdIdentifier, "did:web:") {
		hostname := strings.TrimPrefix(holdIdentifier, "did:web:")

		// Use HTTP for localhost/IP addresses with ports, HTTPS for domains
		if strings.Contains(hostname, ":") ||
			strings.Contains(hostname, "127.0.0.1") ||
			strings.Contains(hostname, "localhost") ||
			// Check if it's an IP address (contains only digits and dots in first part)
			(len(hostname) > 0 && hostname[0] >= '0' && hostname[0] <= '9') {
			return "http://" + hostname
		}
		return "https://" + hostname
	}

	// Fallback: assume it's a hostname and use HTTPS
	return "https://" + holdIdentifier
}