clientlib: Update to protocol version 2 with replies

3 files changed, 29 insertions, 7 deletions

diff --git a/ssh/client.c b/ssh/client.c
index 52f26c6..ad0f107 100644
--- a/ssh/client.c
+++ b/ssh/client.c
@@ -199,7 +199,7 @@ static bool handle_line(
 		if (state->focus_room != NULL) {
 			char *message = NULL;
 			sv_copy(line, &message);
-			enum tomsg_retval ret = tomsg_send(client, state->focus_room, message, NULL);
+			enum tomsg_retval ret = tomsg_send(client, state->focus_room, message, -1, NULL);
 			free(message);
 			if (ret != TOMSG_OK) return true;
 			return false;
@@ -253,7 +253,15 @@ static bool handle_line(
 	} else if (sv_equals(command, "s") || sv_equals(command, "send")) {
 		if (parse_args(line, args, num_args = 2, true)) {
 			autocomplete_roomname(state, &args[0]);
-			ret = tomsg_send(client, args[0], args[1], NULL);
+			ret = tomsg_send(client, args[0], args[1], -1, NULL);
+		}
+
+	} else if (sv_equals(command, "r") || sv_equals(command, "reply")) {
+		int64_t replyid;
+		if (parse_args(line, args, num_args = 3, true) &&
+				parse_i64(args[1], &replyid)) {
+			autocomplete_roomname(state, &args[0]);
+			ret = tomsg_send(client, args[0], args[2], replyid, NULL);
 		}
 
 	} else if (sv_equals(command, "ping")) {
@@ -314,6 +322,7 @@ static bool handle_line(
 			"  create_room\n"
 			"  invite <room> <user>\n"
 			"  s/send <room> <message...>\n"
+			"  r/reply <room> <msgid> <message...>\n"
 			"  ping\n"
 			"  hist/history <room> <count>\n"
 			"  histb/history_before <room> <count> <before_msgid>\n"
@@ -365,8 +374,12 @@ static const char* event_type_descr(enum tomsg_event_type type) {
 }
 
 static void print_history_message(const struct history_message msg) {
-	printf("%" PRIi64 " \x1B[90m%" PRIi64 "\x1B[0m <%s> %s\n",
-			msg.msgid, msg.timestamp, msg.username, msg.message);
+	printf("%" PRIi64 " \x1B[90m%" PRIi64 "\x1B[0m <%s> ",
+			msg.msgid, msg.timestamp, msg.username);
+	if (msg.replyid != -1) {
+		printf("\x1B[32m[%" PRIi64 "<-]\x1B[0m ", msg.replyid);
+	}
+	printf("%s\n", msg.message);
 }
 
 static void handle_event(struct state *state, const struct tomsg_event event) {
diff --git a/ssh/tomsg_clientlib.c b/ssh/tomsg_clientlib.c
index c14d5c5..05ee09d 100644
--- a/ssh/tomsg_clientlib.c
+++ b/ssh/tomsg_clientlib.c
@@ -178,7 +178,7 @@ const char* tomsg_strerror(enum tomsg_retval code) {
 static enum tomsg_retval version_negotiation(struct tomsg_client *client) {
 	if (!client->conn) return TOMSG_ERR_CLOSED;
 
-	const enum sshnc_retval retssh = sshnc_send(client->conn, "ver version 1\n", 14);
+	const enum sshnc_retval retssh = sshnc_send(client->conn, "ver version 2\n", 14);
 	if (retssh == SSHNC_EOF) return TOMSG_ERR_CLOSED;
 	if (retssh != SSHNC_OK) return TOMSG_ERR_TRANSPORT;
 
@@ -691,6 +691,7 @@ static enum tomsg_retval handle_line(
 			PARSE_WORD(push_message.message.username);
 			PARSE_I64(push_message.message.timestamp);
 			PARSE_I64(push_message.message.msgid);
+			PARSE_I64(push_message.message.replyid);
 			PARSE_RESTSTRING(push_message.message.message);
 			return TOMSG_OK;
 		} else if (sv_equals(command, "online")) {
@@ -822,11 +823,12 @@ static enum tomsg_retval handle_line(
 				// (and everywhere): the messages buffer has been allocated with
 				// calloc(), so tomsg_event_nullify() will cleanup up precisely
 				// everything that we haven't filled in yet.
-				struct history_message *msg = &inflight.event.history.messages[index];;
+				struct history_message *msg = &inflight.event.history.messages[index];
 				if (!sv_equals(sv_tokenise_word(&line), inflight.event.history.room_name)) CLEANUP_RETURN(TOMSG_ERR_PARSE);
 				if (!sv_copy(sv_tokenise_word(&line), &msg->username)) CLEANUP_RETURN(TOMSG_ERR_PARSE);
 				if (!sv_parse_i64(sv_tokenise_word(&line), &msg->timestamp)) CLEANUP_RETURN(TOMSG_ERR_PARSE);
 				if (!sv_parse_i64(sv_tokenise_word(&line), &msg->msgid)) CLEANUP_RETURN(TOMSG_ERR_PARSE);
+				if (!sv_parse_i64(sv_tokenise_word(&line), &msg->replyid)) CLEANUP_RETURN(TOMSG_ERR_PARSE);
 				if (!sv_copy(line, &msg->message)) CLEANUP_RETURN(TOMSG_ERR_PARSE);
 
 				// If there are more history_message events coming, re-add the tag for them
@@ -1018,13 +1020,15 @@ enum tomsg_retval tomsg_invite(
 
 enum tomsg_retval tomsg_send(
 	struct tomsg_client *client, const char *room_name, const char *message,
+	int64_t replyid,
 	int64_t *tagp //output
 ) {
 	if (!client->conn) return TOMSG_ERR_CLOSED;
 	if (hasspacelf(room_name)) return TOMSG_ERR_SPACE;
 	if (haslf(message)) return TOMSG_ERR_SPACE;
 	const int64_t tag = client->next_tag++;
-	SEND_FMT(client, tag, "send %s %s", room_name, message);
+	if (replyid < 0) replyid = -1;
+	SEND_FMT(client, tag, "send %s %" PRIi64 " %s", room_name, replyid, message);
 	const struct tomsg_event event = (struct tomsg_event){
 		.type = TOMSG_EV_SEND,
 		.send.tag = tag,
diff --git a/ssh/tomsg_clientlib.h b/ssh/tomsg_clientlib.h
index ab1bde5..b164eb3 100644
--- a/ssh/tomsg_clientlib.h
+++ b/ssh/tomsg_clientlib.h
@@ -139,6 +139,7 @@ struct history_message {
 	char *username;
 	int64_t timestamp;
 	int64_t msgid;
+	int64_t replyid;  // -1 if normal message, the replied-to message id otherwise
 	char *message;
 };
 
@@ -245,8 +246,12 @@ enum tomsg_retval tomsg_invite(
 // If 'tag' is not NULL, will write the message request tag to the referenced
 // location. This tag will also be given in the TOMSG_EV_SEND response, so that
 // the response can be linked to the original message.
+// If 'replyid' is -1, will send a normal message. If not, it must be the id of
+// an earlier message in the same room, and this will send a reply to the
+// indicated message.
 enum tomsg_retval tomsg_send(
 	struct tomsg_client *client, const char *room_name, const char *message,
+	int64_t replyid,
 	int64_t *tag  // output
 );