From 4298dd3cb00bc6a641bb32cad897e31b1b3564c5 Mon Sep 17 00:00:00 2001
From: Adrian Cochrane <adrian@openwork.nz>
Date: Fri, 15 May 2020 19:23:02 +1200
Subject: [PATCH] Draft SpeechD integration.

---
 src/main.c | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/src/main.c b/src/main.c
index 4d28f51..b5ae611 100644
--- a/src/main.c
+++ b/src/main.c
@@ -9,6 +9,12 @@
 #include <espeak-ng/espeak_ng.h>
 #include <sndfile.h>
 
+// #define WITH_SPEECHD // FIXME Doesn't support audio cues, navigation, or even read the full page.
+#ifdef WITH_SPEECHD
+#include <speechd_types.h>
+#include <libspeechd.h>
+#endif
+
 /* Exported Haskell functions/types */
 struct session;
 struct session *c_newSession();
@@ -226,10 +232,17 @@ int main(int argc, char **argv) {
     FILE *fd_links = NULL;
     int use_espeak = 0;
     tcgetattr(0, &stored_settings);
+    #ifdef WITH_SPEECHD
+    SPDConnection *spd_conn = NULL;
+    #endif
 
     int c;
     opterr = 0;
+    #ifdef WITH_SPEECHD
+    while ((c = getopt(argc, argv, "xs::l::kw::dh")) != -1) {
+    #else
     while ((c = getopt(argc, argv, "xs::l::kw::h")) != -1) {
+    #endif
         switch (c) {
         case 'x':
             mimes = "text/xml application/xml application/xhtml+xml text/html text/plain";
@@ -254,6 +267,13 @@ int main(int argc, char **argv) {
             use_espeak = 1;
             path_wav = optarg;
             break;
+        #ifdef WITH_SPEECHD
+        case 'd':
+            spd_conn = spd_open("rhapsode", "main", NULL, SPD_MODE_SINGLE);
+            if (spd_conn == NULL) fprintf(stderr, "Failed to open SpeechD connection, ignoring\n");
+            spd_set_data_mode(spd_conn, SPD_DATA_SSML);
+            break;
+        #endif
         case '?':
             fprintf(stderr, "Invalid flag %c\n\n", optopt);
         case 'h':
@@ -270,7 +290,12 @@ int main(int argc, char **argv) {
         }
     }
     if (fd_ssml == stdout && fd_links == stdout) fd_links = stderr;
-    if (fd_ssml == NULL && fd_links == NULL && !use_espeak) use_espeak = 1;
+    #ifdef WITH_SPEECHD
+    if (fd_ssml == NULL && fd_links == NULL && spd_conn == NULL && !use_espeak)
+    #else
+    if (fd_ssml == NULL && fd_links == NULL && !use_espeak)
+    #endif
+        use_espeak = 1;
 
     struct session *session = c_newSession();
     struct page *referer = c_initialReferer();
@@ -279,6 +304,9 @@ int main(int argc, char **argv) {
     char *ssml;
     for (int i = optind; i < argc; i++) {
         if (use_espeak && speak_err == 0) speak(argv[i], NULL);
+        #ifdef WITH_SPEECHD
+        else if (spd_conn != NULL) spd_say(spd_conn, SPD_MESSAGE, argv[i]);
+        #endif
         else printf("%s\n", argv[i]);
 
         struct page *page = c_fetchURL(session, mimes, referer, argv[i]);
@@ -288,10 +316,16 @@ int main(int argc, char **argv) {
         if (fd_ssml != NULL) fprintf(fd_ssml, "%s\n", ssml);
         if (fd_links != NULL) write_links(fd_links, links);
         if (use_espeak & speak_err == 0) speak(ssml, "main");
+        #ifdef WITH_SPEECHD
+        if (spd_conn != NULL) spd_say(spd_conn, SPD_MESSAGE, ssml);
+        #endif
 
         c_freePage(page);
     }
     if (use_espeak & speak_err == 0) speak_err = speak_finalize(ssml);
+    #ifdef WITH_SPEECHD
+    if (spd_conn != NULL) spd_close(spd_conn);
+    #endif
 
     c_freePage(referer);
     c_freeSession(session);
-- 
2.30.2