morse command

include/hammy/job.h

@@ -55,11 +55,16 @@ int64_t hammy_job_age_ms(const hammy_job_t* job, struct discord* client);
 // Does not destroy the job.
 void hammy_job_run(hammy_job_t* job, struct discord* client, hammy_refdb_t* refdb);
  
-// Edits the (already deferred) interaction response with a plain text body.
+// Edits the (already deferred) interaction response with a titled embed,
+// falling back to a plain text body only if the embed cannot be built.
 // Used by hammy_job_run() and by the pool's error paths.
+//
+// Only valid on the deferred path: it edits a response, so something must have
+// answered the interaction already. Instant handlers want hammy_job_respond().
 void hammy_job_reply(const hammy_job_t* job, struct discord* client, const char* title, const char* content, bool isError);
 
-// Sends a fresh interaction response with a plain text body.
+// Sends a fresh interaction response with a titled embed, falling back to a
+// plain text body only if the embed cannot be built.
 // Only valid on the instant path, where nothing has been sent yet.
 void hammy_job_respond(const hammy_job_t* job, struct discord* client, const char* title, const char* content, bool isError);
 

include/hammy/refdb.h

@@ -15,11 +15,15 @@
 
 #define HAMMY_CALLSIGN_MAX 32
 #define HAMMY_ENTITY_NAME_MAX 64
+// Longest code in the morse table is '$' ('...-..-'), seven characters.
+#define HAMMY_MORSE_MAX 16
 
 struct hammy_refdb_t {
     sqlite3* handle;
     sqlite3_stmt* stExact;
     sqlite3_stmt* stPrefix;
+    sqlite3_stmt* stMorse;
+    char morseCode[HAMMY_MORSE_MAX]; // Scratch for the last hammy_refdb_get_morse() hit
     char version[64];
 };
 
@@ -52,6 +56,13 @@ bool hammy_refdb_close(hammy_refdb_t** db);
 //
 // Returns false if nothing matched.
 bool hammy_refdb_dxcc(hammy_refdb_t* db, const char* callsign, hammy_dxcc_t* out);
+
+// Looks up a character in the Morse table. Case-insensitive; non-ASCII bytes
+// never match. Returns false if not found, leaving *out untouched.
+//
+// On a hit *out points at storage owned by the refdb and is only valid until
+// the NEXT call on the same handle - copy it if it has to outlive that.
+bool hammy_refdb_get_morse(hammy_refdb_t* db, char c, const char** out);
  
 // Bundle version string from ref_meta, or NULL. Owned by the refdb.
 const char* hammy_refdb_version(hammy_refdb_t* db);