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path: root/src/ui.c
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#pragma once
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <api.c>
#include <ncursesw/ncurses.h>
#include <ncursesw/form.h>
#include <unistd.h>
#include <locale.h>
#include <string.h>
#include <assert.h>
#define DC_SIMPLEPRINT(w, c, f, ...) do { wattron(w, COLOR_PAIR(c)); wprintw(w, f __VA_OPT__(,) __VA_ARGS__); wrefresh(w); } while (0)
/* link with -lncursesw and -lformw */
int dc_ui_print_message (WINDOW * textwin, struct dc_message * msg2do) {
	char timestring[64];
	struct tm timestruct;
	localtime_r(&msg2do->time, &timestruct);
	strftime(timestring, 64, DC_I18N_MSGTIMEF, &timestruct); /* recimo, da je 23 znakov */
	DC_SIMPLEPRINT(textwin, 3, "%023.23s %08.8s: %s\n", timestring, msg2do->username, msg2do->content);
	return 1;
}
int dc_ui_processline (struct dc_thread_control * t, char * l, WINDOW * textwin) {
	struct dc_client * c = t->clients[0];
	/* first we trim spaces at the end */
	int i, j, k;
	for (i = strlen(l)-1; i >= 0; i--)
		if (l[i] == ' ')
			l[i] = '\0';
		else
			break;
	if (l[0] == '/')
		switch (l[1]) {
			case 'g':
			case 'G':
			case 's':
			case 'S': /* servers */
				DC_CRLE(c, c->guilds_lock);
				for (i = 0; i < c->guilds_sizeof; i++)
					DC_SIMPLEPRINT(textwin, 4, "      %02d. %s\n", i, c->guilds[i]->name);
				DC_CUE(c, c->guilds_lock);
				break;
			case 'c':
			case 'C':
			case 'k':
			case 'K':
				DC_CRLE(c, c->guilds_lock);
				if (!strchr(l, ' ') || (j = atoi(strchr(l, ' ')+1)) >= c->guilds_sizeof) {
					DC_SIMPLEPRINT(textwin, 1, DC_I18N_UI_USAGE ": " DC_I18N_UI_CHANNELS_USAGE "\n", c->guilds_sizeof-1);
					DC_CUE(c, c->guilds_lock);
					break;
				}
				for (i = 0; i < c->guilds[j]->channels_sizeof; i++)
					DC_SIMPLEPRINT(textwin, 4, "      %02d. %s - %s\n", i, c->guilds[j]->channels[i]->name, c->guilds[j]->channels[i]->topic);
				DC_CUE(c, c->guilds_lock);
				break;
			case 'j':
			case 'J':
			case 'p':
			case 'P':
				DC_CRLE(c, c->guilds_lock);
				char * jp;
				if (!(jp = strchr(l, ' ')) || (j = atoi(jp+1)) >= c->guilds_sizeof) {
					DC_SIMPLEPRINT(textwin, 1, DC_I18N_UI_USAGE ": " DC_I18N_UI_JOIN_USAGE "\n", c->guilds_sizeof-1, 999);
					DC_CUE(c, c->guilds_lock);
					break;
				}
				if (!strchr(jp+1, ' ') || (k = atoi(strchr(jp+1, ' ')+1)) >= c->guilds[j]->channels_sizeof) {
					DC_SIMPLEPRINT(textwin, 1, DC_I18N_UI_USAGE ": " DC_I18N_UI_JOIN_USAGE "\n", c->guilds_sizeof-1, c->guilds[j]->channels_sizeof-1);
					DC_CUE(c, c->guilds_lock);
					break;
				}
				for (i = 0; i < c->guilds[j]->channels[k]->messages_sizeof; i++)
					dc_ui_print_message(textwin, c->guilds[j]->channels[k]->messages[i]);
				c->joinedchannel = c->guilds[j]->channels[k];
				DC_CUE(c, c->guilds_lock);

				break;
			case 'q':
			case 'Q':
			case 'i':
			case 'I':
				t->power_api = 2; /* 2 for shutdown */
				t->power_ui = 2;
				break;
			case 'N': /* api nit (thread) control */
			case 'n':
				if (!strchr(l, ' ')) {
					DC_SIMPLEPRINT(textwin, 1, "!strchr(l, ' ')\n");
					break;
				}
				t->power_api = atoi(strchr(l, ' ')+1);
				DC_SIMPLEPRINT(textwin, 4, "t->power_api = %d\n", atoi(strchr(l, ' ')+1));
			default:
				DC_SIMPLEPRINT(textwin, 1, DC_I18N_UI_CNF "\n");
		}
	wrefresh(textwin);
	return 1;
}
int dc_ui_thread (struct dc_thread_control * t) {
	while (!t->power_ui) usleep(250000);
	FIELD * field[2]; /* field[0] je polje z besedilom */
	field[1] = NULL;
	FORM * form;
	int ret, x, y;
	wint_t ch;
	struct dc_client * c = t->clients[0];
	initscr();
	cbreak();
	noecho();
	nodelay(stdscr, TRUE);
	setlocale(LC_ALL, "sl_SI.UTF-8");
	start_color();
	init_pair(2, COLOR_YELLOW, COLOR_BLACK);
	init_pair(1, COLOR_RED, COLOR_BLACK);
	init_pair(3, COLOR_WHITE, COLOR_BLACK);
	init_pair(4, COLOR_GREEN, COLOR_BLACK);
	keypad(stdscr, TRUE);
	getmaxyx(stdscr, y, x); /* to je macro, zato y in x nista kazalca (;: */
	WINDOW * textwin = subwin(stdscr, y-3, x, 0, 0);
	WINDOW * formwin = subwin(stdscr, 2, x, y-2, 0);
	scrollok(textwin, TRUE);
	field[0] = new_field(2, x, y-2, 0, 5 /* offscreen rows */, 0);
	set_field_back(field[0], A_UNDERLINE);
	field_opts_off(field[0], O_AUTOSKIP);
	form = new_form(field);
	set_form_win(form, formwin);
	post_form(form);
	int i = 0;
	wmove(textwin, 0, 0);
	refresh();
	struct dc_channel * prev_joinedchannel = (void *)&i; /* just so we get something that isn't null without warnings (): */
	while (t->power_ui != 2) {
		if (!(rand() % 100)) { /* roughly every 100 cycles we get errors and messages */
			assert(!DC_CRLE(c, c->errors_lock));
			for (int i = 0; i < c->errors_sizeof; i++) {
				if (!c->errors[i]->reported) {
					DC_SIMPLEPRINT(textwin, 1, "[" DC_I18N_ERROR "] %s()@%s:%lu: %s", c->errors[i]->function, c->errors[i]->file, c->errors[i]->line, c->errors[i]->message);
					c->errors[i]->reported = 1;
				}
			}
			assert(!pthread_rwlock_unlock(c->errors_lock)); /* deadlock if we unlock errors with error reporting, duh */
			if (c->joinedchannel) {
				DC_CRLE(c, c->guilds_lock);
				for (int i = 0; i < c->joinedchannel->messages_sizeof; i++) {
					struct dc_message * msg2do = c->joinedchannel->messages[i];
					if (!msg2do->status) {
						dc_ui_print_message(textwin, msg2do);
						msg2do->status = 1;
					}
				}
				DC_CUE(c, c->guilds_lock);
			}
			if (prev_joinedchannel != c->joinedchannel) {
				curs_set(0); /* too flashy */
				attron(COLOR_PAIR(2));
				if (c->joinedchannel) {
					DC_CRLE(c, c->guilds_lock);
					mvprintw(y-3, 0, "#%s @ %s | %s", c->joinedchannel->name, c->joinedchannel->guild->name, c->joinedchannel->topic);
					DC_CUE(c, c->guilds_lock);
				}
				else
					mvprintw(y-3, 0, DC_I18N_UI_LINE_BEFORE_JOIN);
				curs_set(1);
				prev_joinedchannel = c->joinedchannel;
			}
			pos_form_cursor(form);
		}
		ret = get_wch(&ch);
		if (ret != ERR) {
			switch (ch) {
				case KEY_LEFT:
					form_driver(form, REQ_PREV_CHAR);
					break;
				case KEY_RIGHT:
					form_driver(form, REQ_NEXT_CHAR);
					break;
				case KEY_BACKSPACE:
					form_driver(form, REQ_DEL_PREV);
					break;
				case KEY_DOWN:
					form_driver(form, REQ_NEXT_LINE);
					break;
				case KEY_UP:
					form_driver(form, REQ_PREV_LINE);
					break;
				case KEY_DC:
					form_driver(form, REQ_DEL_CHAR);
					break;
				case KEY_END:
					form_driver(form, REQ_END_LINE);
					break;
				case KEY_HOME:
					form_driver(form, REQ_BEG_LINE);
					break;
				case KEY_SLEFT:
					form_driver(form, REQ_PREV_WORD);
					break;
				case KEY_SRIGHT:
					form_driver(form, REQ_NEXT_WORD);
					break;
				case KEY_SDC:
					form_driver(form, REQ_CLR_FIELD);
					break;
				case KEY_ENTER:
				case 10:
					form_driver(form, REQ_NEXT_FIELD);
					form_driver(form, REQ_PREV_FIELD);
					dc_ui_processline(t, field_buffer(field[0], 0), textwin);
					form_driver(form, REQ_CLR_FIELD);
					pos_form_cursor(form);
					break;
				default:
					form_driver_w(form, ret, ch);
					break;
			}
			wrefresh(formwin);
		}
		/* wnoutrefresh(stdscr);
		wnoutrefresh(textwin);
		doupdate(); */
		i++;
		usleep(2500);
		while (t->power_ui == 0) usleep(250000);
	}
	unpost_form(form);
	free_form(form);
	free_field(field[0]);
	endwin();
	return 1;
}