/* A caller of libjoltzvui: builds a tree, paints it, drains events.
 * This is the shape glimmer's reconciler drives the library in, in C. */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "include/zvui.h"

static int mk(const char *tag, int parent) {
	int n = zvui_node_new(tag);
	zvui_node_append(parent, n);
	return n;
}

int main(int argc, char **argv) {
	int headless = (argc > 1 && strcmp(argv[1], "--dump") == 0);
	/* --frames N paints N frames and leaves: a smoke test that ends by itself. */
	int limit = 0;
	for (int i = 1; i < argc - 1; i++)
		if (strcmp(argv[i], "--frames") == 0) limit = atoi(argv[i + 1]);

	int root = zvui_tree_root();
	zvui_node_set_num(root, "spacing", 8);

	int card = mk("card", root);
	int title = mk("title", card);
	zvui_node_set_str(title, "text", "jolt-zvui");

	int sub = mk("dim-label", card);
	zvui_node_set_str(sub, "text", "the vidya tree ABI, painted by dvui");

	mk("separator", card);

	int name = mk("entry", card);
	zvui_node_set_str(name, "placeholder", "your handle");

	int tls = mk("checkbox", card);
	zvui_node_set_str(tls, "label", "Use TLS");
	zvui_node_set_bool(tls, "value", 1);

	int row = mk("hbox", card);
	zvui_node_set_num(row, "spacing", 6);
	int connect = mk("button", row);
	zvui_node_set_str(connect, "text", "Connect");
	zvui_node_set_str(connect, "kind", "primary");
	int quit = mk("button", row);
	zvui_node_set_str(quit, "text", "Quit");

	int status = mk("label", card);
	zvui_node_set_str(status, "text", "idle");

	if (headless) {
		printf("%s", zvui_tree_dump(root));
		printf("child_count(root)=%d tag(card)=%s\n",
		       zvui_node_child_count(root), zvui_node_tag(card));
		return 0;
	}

	if (!zvui_open(520, 420, "jolt-zvui demo")) {
		fprintf(stderr, "could not open a window\n");
		return 1;
	}

	int painted = 0;
	while (!zvui_should_close()) {
		zvui_frame();
		if (limit && ++painted >= limit) {
			printf("painted %d frames, %.0fx%.0f points\n",
			       painted, zvui_screen_width(), zvui_screen_height());
			break;
		}
		while (zvui_tree_poll_event()) {
			int node = zvui_tree_event_node();
			const char *ev = zvui_tree_event_name();
			printf("event %s on #%d text=\"%s\" num=%f\n",
			       ev, node, zvui_tree_event_text(), zvui_tree_event_num());
			if (node == quit && strcmp(ev, "click") == 0) goto done;
			if (node == connect && strcmp(ev, "click") == 0)
				zvui_node_set_str(status, "text", "connecting...");
			if (node == name && strcmp(ev, "change") == 0) {
				static char buf[256];
				snprintf(buf, sizeof buf, "hello, %s", zvui_tree_event_text());
				zvui_node_set_str(status, "text", buf);
			}
		}
	}
done:
	zvui_close();
	return 0;
}