feat: upload qrz.com clublog and lotw manually

internal/extsvc/extsvc.go

@@ -30,7 +30,7 @@ type Service string
 const (
 	ServiceQRZ     Service = "qrz"     // QRZ.com Logbook
 	ServiceClublog Service = "clublog" // Club Log real-time upload
-	// ServiceLoTW to come.
+	ServiceLoTW    Service = "lotw"    // ARRL Logbook of The World (via TQSL)
 )
 
 // UploadMode selects when an auto-upload fires after a QSO is saved.
@@ -41,6 +41,10 @@ const (
 	ModeImmediate UploadMode = "immediate"
 	// ModeDelayed waits a random 1–2 minutes before uploading.
 	ModeDelayed UploadMode = "delayed"
+	// ModeOnClose queues QSOs and uploads them in one batch when the app
+	// closes. This is the LoTW-friendly mode (ARRL discourages per-QSO
+	// uploads), and it lets the user fix the whole session before sending.
+	ModeOnClose UploadMode = "on_close"
 )
 
 // ServiceConfig is the per-service user configuration. It's a superset of
@@ -49,6 +53,7 @@ const (
 //
 //	QRZ.com  → APIKey, ForceStationCallsign
 //	Club Log → Email, Password, Callsign, APIKey
+//	LoTW     → TQSLPath, StationLocation, KeyPassword (signs+uploads via TQSL)
 //
 // AutoUpload + UploadMode are common to all (timing is per-service, so the
 // user can run e.g. Club Log immediate and QRZ delayed).
@@ -58,6 +63,11 @@ type ServiceConfig struct {
 	Password             string     `json:"password"`               // Club Log account password
 	Callsign             string     `json:"callsign"`               // Club Log logbook (owner) callsign
 	ForceStationCallsign string     `json:"force_station_callsign"` // QRZ
+	TQSLPath             string     `json:"tqsl_path"`              // LoTW: path to tqsl.exe
+	StationLocation      string     `json:"station_location"`       // LoTW: TQSL Station Location name
+	KeyPassword          string     `json:"key_password"`           // LoTW: certificate private-key password (optional)
+	UploadFlag           string     `json:"upload_flag"`            // LoTW: sent status that means "ready to upload" — "N" or "R"
+	WriteLog             bool       `json:"write_log"`              // LoTW: pass -t to write a TQSL diagnostic log
 	AutoUpload           bool       `json:"auto_upload"`
 	UploadMode           UploadMode `json:"upload_mode"`
 }
@@ -69,17 +79,29 @@ func (c ServiceConfig) normalised() ServiceConfig {
 	c.Email = strings.TrimSpace(c.Email)
 	c.Callsign = strings.ToUpper(strings.TrimSpace(c.Callsign))
 	c.ForceStationCallsign = strings.ToUpper(strings.TrimSpace(c.ForceStationCallsign))
-	if c.UploadMode != ModeDelayed {
+	c.TQSLPath = strings.TrimSpace(c.TQSLPath)
+	c.StationLocation = strings.TrimSpace(c.StationLocation)
+	// Upload flag is the LoTW sent-status that marks a QSO ready to upload.
+	// Only "N" (no) and "R" (requested) are valid; default to "R".
+	if uf := strings.ToUpper(strings.TrimSpace(c.UploadFlag)); uf == "N" || uf == "R" {
+		c.UploadFlag = uf
+	} else {
+		c.UploadFlag = "R"
+	}
+	switch c.UploadMode {
+	case ModeDelayed, ModeOnClose:
+		// keep
+	default:
 		c.UploadMode = ModeImmediate
 	}
 	return c
 }
 
 // ExternalServices bundles every service's config for the settings UI.
-// LoTW fields will be added as that service lands.
 type ExternalServices struct {
 	QRZ     ServiceConfig `json:"qrz"`
 	Clublog ServiceConfig `json:"clublog"`
+	LoTW    ServiceConfig `json:"lotw"`
 }
 
 // UploadResult is the outcome of a single upload attempt.