web: split opts and prompt handlers into separate files

Currently using a bunch of forward declarations in prompt.c that should
be cleaned up later.

1 files changed, 168 insertions, 0 deletions

diff --git a/web/web_prompt.c b/web/web_prompt.c
new file mode 100644
index 0000000..64a23fd
--- /dev/null
+++ b/web/web_prompt.c
@@ -0,0 +1,168 @@
+#include "web_prompt.h"
+#include "web_match.h"
+#include "web_ui.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <emscripten/emscripten.h>
+
+// FIXME forward declaring these until the code is better modularised
+void start_match(int mode);
+void user_num_darts(int n);
+void user_visit(int points);
+void user_visit_to_rem(int rem);
+void end_match();
+void update_user_rem_from_pts(int pts);
+void user_undo();
+
+enum prompt_mode pm;
+
+char *prompt_get()
+{
+	return (char *)EM_ASM_INT({return promptGet()});
+}
+
+void prompt_handle_pre(char *command)
+{
+	if (pm == PM_DARTBOARD)
+		return;
+
+	EM_ASM(clearOi());
+
+	if ((pm == PM_VISIT || pm == PM_NUM_DARTS || pm == PM_END_MATCH) &&
+		strcmp(command, "undo"))
+		deactivate_key("undo");
+
+	if (pm == PM_END_MATCH && strcmp(command, "rem"))
+		deactivate_key("rem");
+
+	if (pm == PM_END_MATCH && strcmp(command, "submit"))
+		deactivate_key("submit");
+}
+
+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_DARTBOARD)
+		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_DARTBOARD)
+		return;
+
+	EM_ASM({setPromptInput($0)}, "");
+	prompt_handle_on_change();
+}
+
+void prompt_handle_submit()
+{
+	if (pm == PM_END_MATCH) {
+		if (is_key_active("submit"))
+			end_match();
+		toggle_key("submit");
+		return;
+	}
+
+	if (pm != PM_VISIT && pm != PM_NUM_DARTS && pm != PM_SELECT_MODE)
+		return;
+
+	char *str = prompt_get();
+	prompt_handle_clear();
+	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);
+}
+
+void prompt_handle_rem()
+{
+	if (pm == PM_END_MATCH) {
+		if (is_key_active("rem"))
+			start_match(state->mode);
+		toggle_key("rem");
+		return;
+	}
+
+	if (pm != PM_VISIT)
+		return;
+
+	char *str = prompt_get();
+	prompt_handle_clear();
+	if (*str)
+		user_visit_to_rem(atoi(str));
+	free(str);
+}
+
+void prompt_handle_undo()
+{
+	if (pm != PM_VISIT && pm != PM_NUM_DARTS && pm != PM_END_MATCH)
+		return;
+
+	prompt_handle_clear();
+	if (is_key_active("undo"))
+		user_undo();
+	toggle_key("undo");
+}
+
+EMSCRIPTEN_KEEPALIVE
+void prompt_handle(char *command, char *data)
+{
+	prompt_handle_pre(command);
+
+	if (!strcmp(command, "append"))
+		prompt_handle_append(data);
+	else if (!strcmp(command, "backspace"))
+		prompt_handle_backspace();
+	else if (!strcmp(command, "clear"))
+		prompt_handle_clear();
+	else if (!strcmp(command, "submit"))
+		prompt_handle_submit();
+	else if (!strcmp(command, "rem"))
+		prompt_handle_rem();
+	else if (!strcmp(command, "undo"))
+		prompt_handle_undo();
+}