web: rewrite prompt handlers in c

1 files changed, 161 insertions, 5 deletions

diff --git a/web/dartboat_wasm.c b/web/dartboat_wasm.c
index d9c3540..322127a 100644
--- a/web/dartboat_wasm.c
+++ b/web/dartboat_wasm.c
@@ -10,6 +10,28 @@
 
 int delay_ms = 500;
 
+enum prompt_mode {
+	PM_NONE,
+	PM_VISIT,
+	PM_NUM_DARTS,
+	PM_END_MATCH,
+	PM_SELECT_MODE
+};
+
+enum prompt_mode pm;
+
+void set_prompt_mode(enum prompt_mode mode)
+{
+	pm = mode;
+
+	if (pm != PM_NONE)
+		EM_ASM(setPromptActive());
+	else
+		EM_ASM(setPromptInactive());
+
+	EM_ASM({setKeypad($0)}, pm == PM_SELECT_MODE ? "select_mode" : "default");
+}
+
 enum match_mode {
 	M_FIRST = 1,
 	M_PVC = M_FIRST,
@@ -37,10 +59,10 @@ void set_active_player(int pn)
 
 	if (state->mode == M_PVC && pn == 2) {
 		EM_ASM({promptMsgL($0)}, "Bot is throwing…");
-		EM_ASM({setPromptHandler($0)}, "");
+		set_prompt_mode(PM_NONE);
 	} else {
 		EM_ASM({promptMsgL($0)}, "Enter points:");
-		EM_ASM({setPromptHandler($0)}, "visit");
+		set_prompt_mode(PM_VISIT);
 	}
 	EM_ASM({promptMsgR($0)}, "");
 }
@@ -206,7 +228,7 @@ void clear_player_info(int pn)
 
 void prompt_num_darts()
 {
-	EM_ASM({setPromptHandler($0)}, "num_darts");
+	set_prompt_mode(PM_NUM_DARTS);
 	EM_ASM({promptMsgL($0)}, "Darts needed?");
 	EM_ASM({promptMsgR($0)}, "");
 }
@@ -214,7 +236,7 @@ void prompt_num_darts()
 void prompt_end_match()
 {
 	EM_ASM(setPlayerActive()); // sets all inactive
-	EM_ASM({setPromptHandler($0)}, "end_match");
+	set_prompt_mode(PM_END_MATCH);
 	EM_ASM({promptMsgL($0)},
 		state->mode == M_PVC && state->legs[1]->rem <= 0 ? "Bot wins. :(" :
 			"You win! :)");
@@ -229,7 +251,7 @@ EMSCRIPTEN_KEEPALIVE void prompt_select_mode()
 	}
 	EM_ASM(clearVisits());
 
-	EM_ASM({setPromptHandler($0)}, "select_mode");
+	set_prompt_mode(PM_SELECT_MODE);
 	EM_ASM({promptMsgL($0)}, "Select match mode:");
 	EM_ASM({promptMsgR($0)}, "");
 }
@@ -432,8 +454,142 @@ void init_boat()
 	EM_ASM({updateStdev($0)}, horizontal_stdev);
 }
 
+char *prompt_get()
+{
+	return (char *)EM_ASM_INT({return promptGet()});
+}
+
+void prompt_handle_pre(char *action)
+{
+	if (pm == PM_NONE)
+		return;
+
+	EM_ASM(clearOi());
+
+	if ((pm == PM_VISIT || pm == PM_NUM_DARTS || pm == PM_END_MATCH) &&
+		strcmp(action, "undo"))
+		EM_ASM(deactivateUndo());
+}
+
+void prompt_handle_on_change()
+{
+	if (pm != PM_VISIT)
+		return;
+
+	char *str = prompt_get();
+	update_user_rem_from_pts(atoi(str));
+	free(str);
+}
+
+void prompt_handle_append(char *data)
+{
+	if (pm != PM_SELECT_MODE && pm != PM_VISIT && pm != PM_NUM_DARTS)
+		return;
+
+	char *str = prompt_get();
+	size_t len_str = strlen(str);
+	size_t len_data = strlen(data);
+	if (len_str < 3) {
+		str = realloc(str, len_str + len_data + 1);
+		memcpy(str + len_str, data, len_data + 1);
+		EM_ASM({setPromptInput($0)}, str);
+		prompt_handle_on_change();
+	}
+	free(str);
+}
+
+void prompt_handle_backspace()
+{
+	if (pm == PM_NONE)
+		return;
+
+	char *str = prompt_get();
+	size_t len_str = strlen(str);
+	if (len_str > 0) {
+		str[len_str-1] = 0;
+		EM_ASM({setPromptInput($0)}, str);
+		prompt_handle_on_change();
+	}
+	free(str);
+}
+
+void prompt_handle_clear()
+{
+	if (pm == PM_NONE)
+		return;
+
+	EM_ASM(promptClear());
+	prompt_handle_on_change();
+}
+
+void prompt_handle_submit()
+{
+	if (pm == PM_END_MATCH) {
+		end_match();
+		return;
+	}
+
+	if (pm != PM_VISIT && pm != PM_NUM_DARTS && pm != PM_SELECT_MODE)
+		return;
+
+	char *str = prompt_get();
+	if (*str) {
+		if (pm == PM_VISIT)
+			user_visit(atoi(str));
+		else if (pm == PM_NUM_DARTS)
+			user_num_darts(atoi(str));
+		else if (pm == PM_SELECT_MODE)
+			start_match(atoi(str));
+	}
+
+	free(str);
+	prompt_handle_clear();
+}
+
+void prompt_handle_submit_rem()
+{
+	if (pm != PM_VISIT)
+		return;
+
+	char *str = prompt_get();
+	if (*str)
+		user_visit_to_rem(atoi(str));
+	free(str);
+	prompt_handle_clear();
+}
+
+void prompt_handle_undo()
+{
+	if (pm != PM_VISIT && pm != PM_NUM_DARTS && pm != PM_END_MATCH)
+		return;
+
+	prompt_handle_clear();
+	if (EM_ASM_INT({return isUndoActive()}))
+		user_undo();
+	EM_ASM(toggleUndo());
+}
+
+EMSCRIPTEN_KEEPALIVE void prompt_handle(char *action, char *data)
+{
+	prompt_handle_pre(action);
+
+	if (!strcmp(action, "append"))
+		prompt_handle_append(data);
+	else if (!strcmp(action, "backspace"))
+		prompt_handle_backspace();
+	else if (!strcmp(action, "clear"))
+		prompt_handle_clear();
+	else if (!strcmp(action, "submit"))
+		prompt_handle_submit();
+	else if (!strcmp(action, "submit_rem"))
+		prompt_handle_submit_rem();
+	else if (!strcmp(action, "undo"))
+		prompt_handle_undo();
+}
+
 int main()
 {
 	init_boat();
+	set_prompt_mode(PM_VISIT);
 	handle_next();
 }