[feat](trx-core): add WSPR decode plumbing across stack

Introduce WSPR command/state/protocol/transport wiring and integrate lifecycle, history, and frontend API paths mirroring the FT8 architecture.

Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>

src/trx-core/src/audio.rs

@@ -14,6 +14,7 @@ pub const AUDIO_MSG_TX_FRAME: u8 = 0x02;
 pub const AUDIO_MSG_APRS_DECODE: u8 = 0x03;
 pub const AUDIO_MSG_CW_DECODE: u8 = 0x04;
 pub const AUDIO_MSG_FT8_DECODE: u8 = 0x05;
+pub const AUDIO_MSG_WSPR_DECODE: u8 = 0x06;
 
 /// Maximum payload size (1 MB) to reject bogus frames early.
 const MAX_PAYLOAD_SIZE: u32 = 1_048_576;

src/trx-core/src/decode.rs

@@ -16,6 +16,8 @@ pub enum DecodedMessage {
     Cw(CwEvent),
     #[serde(rename = "ft8")]
     Ft8(Ft8Message),
+    #[serde(rename = "wspr")]
+    Wspr(WsprMessage),
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -62,3 +64,17 @@ pub struct Ft8Message {
     /// Decoded message text
     pub message: String,
 }
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct WsprMessage {
+    /// UTC timestamp (milliseconds since epoch)
+    pub ts_ms: i64,
+    /// Approximate SNR (dB)
+    pub snr_db: f32,
+    /// Time offset within slot (seconds)
+    pub dt_s: f32,
+    /// Audio frequency (Hz)
+    pub freq_hz: f32,
+    /// Decoded message text
+    pub message: String,
+}

src/trx-core/src/rig/command.rs

@@ -25,7 +25,9 @@ pub enum RigCommand {
     SetCwWpm(u32),
     SetCwToneHz(u32),
     SetFt8DecodeEnabled(bool),
+    SetWsprDecodeEnabled(bool),
     ResetAprsDecoder,
     ResetCwDecoder,
     ResetFt8Decoder,
+    ResetWsprDecoder,
 }

src/trx-core/src/rig/controller/handlers.rs

@@ -508,9 +508,11 @@ pub fn command_from_rig_command(cmd: RigCommand) -> Box<dyn RigCommandHandler> {
         | RigCommand::SetCwWpm(_)
         | RigCommand::SetCwToneHz(_)
         | RigCommand::SetFt8DecodeEnabled(_)
+        | RigCommand::SetWsprDecodeEnabled(_)
         | RigCommand::ResetAprsDecoder
         | RigCommand::ResetCwDecoder
-        | RigCommand::ResetFt8Decoder => Box::new(GetSnapshotCommand),
+        | RigCommand::ResetFt8Decoder
+        | RigCommand::ResetWsprDecoder => Box::new(GetSnapshotCommand),
     }
 }
 

src/trx-core/src/rig/state.rs

@@ -31,6 +31,8 @@ pub struct RigState {
     #[serde(default)]
     pub ft8_decode_enabled: bool,
     #[serde(default)]
+    pub wspr_decode_enabled: bool,
+    #[serde(default)]
     pub cw_auto: bool,
     #[serde(default)]
     pub cw_wpm: u32,
@@ -42,6 +44,8 @@ pub struct RigState {
     pub cw_decode_reset_seq: u64,
     #[serde(default, skip_serializing)]
     pub ft8_decode_reset_seq: u64,
+    #[serde(default, skip_serializing)]
+    pub wspr_decode_reset_seq: u64,
 }
 
 /// Mode supported by the rig.
@@ -113,12 +117,14 @@ impl RigState {
             aprs_decode_enabled: false,
             cw_decode_enabled: false,
             ft8_decode_enabled: false,
+            wspr_decode_enabled: false,
             cw_auto: true,
             cw_wpm: 15,
             cw_tone_hz: 700,
             aprs_decode_reset_seq: 0,
             cw_decode_reset_seq: 0,
             ft8_decode_reset_seq: 0,
+            wspr_decode_reset_seq: 0,
         }
     }
 
@@ -169,9 +175,11 @@ impl RigState {
             cw_wpm: snapshot.cw_wpm,
             cw_tone_hz: snapshot.cw_tone_hz,
             ft8_decode_enabled: snapshot.ft8_decode_enabled,
+            wspr_decode_enabled: snapshot.wspr_decode_enabled,
             aprs_decode_reset_seq: 0,
             cw_decode_reset_seq: 0,
             ft8_decode_reset_seq: 0,
+            wspr_decode_reset_seq: 0,
         }
     }
 
@@ -202,6 +210,7 @@ impl RigState {
             cw_wpm: self.cw_wpm,
             cw_tone_hz: self.cw_tone_hz,
             ft8_decode_enabled: self.ft8_decode_enabled,
+            wspr_decode_enabled: self.wspr_decode_enabled,
         })
     }
 
@@ -251,6 +260,8 @@ pub struct RigSnapshot {
     #[serde(default)]
     pub ft8_decode_enabled: bool,
     #[serde(default)]
+    pub wspr_decode_enabled: bool,
+    #[serde(default)]
     pub cw_auto: bool,
     #[serde(default)]
     pub cw_wpm: u32,