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calcurse-edge/src/io.c
Frederic Culot 4307247a07 io_load_todo() updated to use todo_set_nb()
2007-08-15 15:36:27 +00:00

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/* $calcurse: io.c,v 1.21 2007/08/15 15:36:27 culot Exp $ */
/*
* Calcurse - text-based organizer
* Copyright (c) 2004-2007 Frederic Culot
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Send your feedback or comments to : calcurse@culot.org
* Calcurse home page : http://culot.org/calcurse
*
*/
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
#include <math.h>
#include <unistd.h>
#include "i18n.h"
#include "utils.h"
#include "custom.h"
#include "todo.h"
#include "event.h"
#include "apoint.h"
#include "io.h"
typedef enum {
PROGRESS_BAR_SAVE,
PROGRESS_BAR_LOAD,
PROGRESS_BAR_EXPORT
} progress_bar_t;
/* Draw a progress bar while saving, loading or exporting data. */
static void
progress_bar(progress_bar_t type, int progress)
{
#define SLEEPTIME 125000
#define STEPS 3
#define LABELENGTH 15
int i, step;
char *mesg_sav = _("Saving...");
char *mesg_load = _("Loading...");
char *mesg_export = _("Exporting...");
char *barchar = "|";
char file[STEPS][LABELENGTH] = {
"[ conf ]",
"[ todo ]",
"[ apts ]"
};
char data[STEPS][LABELENGTH] = {
"[ events ]",
"[appointments]",
"[ todo ]"
};
int ipos = LABELENGTH + 2;
int epos[STEPS];
/* progress bar length init. */
ipos = LABELENGTH + 2;
step = floor(col / (STEPS + 1));
for (i = 0; i < STEPS - 1; i++)
epos[i] = (i + 2) * step;
epos[STEPS - 1] = col - 2;
switch (type) {
case PROGRESS_BAR_SAVE:
status_mesg(mesg_sav, file[progress]);
break;
case PROGRESS_BAR_LOAD:
status_mesg(mesg_load, file[progress]);
break;
case PROGRESS_BAR_EXPORT:
status_mesg(mesg_export, data[progress]);
break;
}
/* Draw the progress bar. */
mvwprintw(swin, 1, ipos, barchar);
mvwprintw(swin, 1, epos[STEPS - 1], barchar);
custom_apply_attr(swin, ATTR_HIGHEST);
for (i = ipos + 1; i < epos[progress]; i++)
mvwaddch(swin, 1, i, ' ' | A_REVERSE);
custom_remove_attr(swin, ATTR_HIGHEST);
wmove(swin, 0, 0);
wrefresh(swin);
usleep(SLEEPTIME);
}
/* Return the recurrence type to dump in iCal format. */
static char *
io_recur_type(int type)
{
char *recur_type[RECUR_TYPES] =
{ "", "DAILY", "WEEKLY", "MONTHLY", "YEARLY" };
return (recur_type[type]);
}
/* Ask user for a file name to export data to. */
static FILE *
io_get_export_stream(void)
{
FILE *stream;
char *home, *stream_name;
char *question =
_("Choose the file used to export calcurse data:");
char *wrong_name =
_("The file cannot be accessed, please enter another file name.");
char *press_enter =
_("Press [ENTER] to continue.");
stream = NULL;
stream_name = (char *)malloc(BUFSIZ);
home = getenv("HOME");
if (home == NULL)
home = ".";
snprintf(stream_name, BUFSIZ, "%s/calcurse.ics", home);
while (stream == NULL) {
status_mesg(question, "");
updatestring(swin, &stream_name, 0, 1);
stream = fopen(stream_name, "w");
if (stream == NULL) {
status_mesg(wrong_name, press_enter);
wgetch(swin);
}
}
free(stream_name);
return (stream);
}
/* iCal alarm notification. */
static void
io_export_valarm(FILE *stream)
{
fprintf(stream, "BEGIN:VALARM\n");
pthread_mutex_lock(&nbar->mutex);
fprintf(stream, "TRIGGER:-P%dS\n", nbar->cntdwn);
pthread_mutex_unlock(&nbar->mutex);
fprintf(stream, "ACTION:DISPLAY\n");
fprintf(stream, "END:VALARM\n");
}
/* Export header. */
static void
io_export_header(FILE *stream)
{
fprintf(stream, "BEGIN:VCALENDAR\n");
fprintf(stream, "PRODID:-//calcurse//NONSGML v%s//EN\n",
VERSION);
fprintf(stream, "VERSION:2.0\n");
}
/* Export footer. */
static void
io_export_footer(FILE *stream)
{
fprintf(stream, "END:VCALENDAR\n");
}
/* Export recurrent events. */
static void
io_export_recur_events(FILE *stream)
{
struct recur_event_s *i;
struct days_s *day;
char ical_date[BUFSIZ];
for (i = recur_elist; i != 0; i = i->next) {
date_sec2ical_date(i->day, ical_date);
fprintf(stream, "BEGIN:VEVENT\n");
fprintf(stream, "DTSTART:%s\n", ical_date);
fprintf(stream, "RRULE:FREQ=%s;INTERVAL=%d",
io_recur_type(i->rpt->type), i->rpt->freq);
if (i->rpt->until != 0) {
date_sec2ical_date(i->rpt->until, ical_date);
fprintf(stream, ";UNTIL=%s\n", ical_date);
} else
fprintf(stream, "\n");
if (i->exc != NULL) {
date_sec2ical_date(i->exc->st, ical_date);
fprintf(stream, "EXDATE:%s", ical_date);
for (day = i->exc->next; day; day = day->next) {
date_sec2ical_date(day->st, ical_date);
fprintf(stream, ",%s", ical_date);
}
fprintf(stream, "\n");
}
fprintf(stream, "SUMMARY:%s\n", i->mesg);
fprintf(stream, "END:VEVENT\n");
}
}
/* Export events. */
static void
io_export_events(FILE *stream)
{
struct event_s *i;
char ical_date[BUFSIZ];
for (i = eventlist; i != 0; i = i->next) {
date_sec2ical_date(i->day, ical_date);
fprintf(stream, "BEGIN:VEVENT\n");
fprintf(stream, "DTSTART:%s\n", ical_date);
fprintf(stream, "SUMMARY:%s\n", i->mesg);
fprintf(stream, "END:VEVENT\n");
}
}
/* Export recurrent appointments. */
static void
io_export_recur_apoints(FILE *stream)
{
recur_apoint_llist_node_t *i;
struct days_s *day;
char ical_datetime[BUFSIZ];
char ical_date[BUFSIZ];
pthread_mutex_lock(&(recur_alist_p->mutex));
for (i = recur_alist_p->root; i != 0; i = i->next) {
date_sec2ical_datetime(i->start, ical_datetime);
fprintf(stream, "BEGIN:VEVENT\n");
fprintf(stream, "DTSTART:%s\n", ical_datetime);
fprintf(stream, "DURATION:P%ldS\n", i->dur);
fprintf(stream, "RRULE:FREQ=%s;INTERVAL=%d",
io_recur_type(i->rpt->type), i->rpt->freq);
if (i->rpt->until != 0) {
date_sec2ical_date(i->rpt->until + HOURINSEC,
ical_date);
fprintf(stream, ";UNTIL=%s\n", ical_date);
} else
fprintf(stream, "\n");
if (i->exc != NULL) {
date_sec2ical_date(i->exc->st, ical_date);
fprintf(stream, "EXDATE:%s", ical_date);
for (day = i->exc->next; day; day = day->next) {
date_sec2ical_date(day->st, ical_date);
fprintf(stream, ",%s", ical_date);
}
fprintf(stream, "\n");
}
fprintf(stream, "SUMMARY:%s\n", i->mesg);
if (i->state & APOINT_NOTIFY)
io_export_valarm(stream);
fprintf(stream, "END:VEVENT\n");
}
pthread_mutex_unlock(&(recur_alist_p->mutex));
}
/* Export appointments. */
static void
io_export_apoints(FILE *stream)
{
apoint_llist_node_t *i;
char ical_datetime[BUFSIZ];
pthread_mutex_lock(&(alist_p->mutex));
for (i = alist_p->root; i != 0; i = i->next) {
date_sec2ical_datetime(i->start, ical_datetime);
fprintf(stream, "BEGIN:VEVENT\n");
fprintf(stream, "DTSTART:%s\n", ical_datetime);
fprintf(stream, "DURATION:P%ldS\n", i->dur);
fprintf(stream, "SUMMARY:%s\n", i->mesg);
if (i->state & APOINT_NOTIFY)
io_export_valarm(stream);
fprintf(stream, "END:VEVENT\n");
}
pthread_mutex_unlock(&(alist_p->mutex));
}
/* Export todo items. */
static void
io_export_todo(FILE *stream)
{
struct todo_s *i;
for (i = todolist; i != 0; i = i->next) {
fprintf(stream, "BEGIN:VTODO\n");
fprintf(stream, "PRIORITY:%d\n", i->id);
fprintf(stream, "SUMMARY:%s\n", i->mesg);
fprintf(stream, "END:VTODO\n");
}
}
/*
* Initialization of data paths. The argument cfile is the variable
* which contains the calendar file. If none is given, then the default
* one (~/.calcurse/apts) is taken. If the one given does not exist, it
* is created.
*/
void
io_init(char *cfile)
{
FILE *data_file;
char *home;
char apts_file[BUFSIZ] = "";
int ch;
home = getenv("HOME");
if (home == NULL) {
home = ".";
}
snprintf(path_dir, BUFSIZ, "%s/" DIR_NAME, home);
snprintf(path_todo, BUFSIZ, "%s/" TODO_PATH, home);
snprintf(path_conf, BUFSIZ, "%s/" CONF_PATH, home);
if (cfile == NULL) {
snprintf(path_apts, BUFSIZ, "%s/" APTS_PATH, home);
} else {
snprintf(apts_file, BUFSIZ, "%s", cfile);
strncpy(path_apts, apts_file, BUFSIZ);
/* check if the file exists, otherwise create it */
data_file = fopen(path_apts, "r");
if (data_file == NULL) {
printf(_("%s does not exist, create it now [y or n] ? "), path_apts);
ch = getchar();
switch (ch) {
case 'N':
case 'n':
printf(_("aborting...\n"));
exit(EXIT_FAILURE);
break;
case 'Y':
case 'y':
data_file = fopen(path_apts, "w");
if (data_file == NULL) {
perror(path_apts);
exit(EXIT_FAILURE);
} else {
printf(_("%s successfully created\n"),path_apts);
printf(_("starting interactive mode...\n"));
}
break;
default:
printf(_("aborting...\n"));
exit(EXIT_FAILURE);
break;
}
}
fclose(data_file);
}
}
/* get data from file */
void
io_extract_data(char *dst_data, const char *org, int len)
{
for (;;) {
if (*org == '\n' || *org == '\0')
break;
*dst_data++ = *org++;
}
*dst_data = '\0';
}
/* Save the calendar data */
void
io_save_cal(conf_t *conf)
{
FILE *data_file;
struct event_s *k;
apoint_llist_node_t *j;
struct todo_s *i;
char theme_name[BUFSIZ];
char *access_pb = _("Problems accessing data file ...");
char *config_txt =
"#\n# Calcurse configuration file\n#\n# This file sets the configuration options used by Calcurse. These\n# options are usually set from within Calcurse. A line beginning with \n# a space or tab is considered to be a continuation of the previous line.\n# For a variable to be unset its value must be blank.\n# To set a variable to the empty string its value should be \"\".\n# Lines beginning with \"#\" are comments, and ignored by Calcurse.\n";
char *save_success = _("The data files were successfully saved");
char *enter = _("Press [ENTER] to continue");
bool show_bar = false;
if (!conf->skip_progress_bar)
show_bar = true;
/* Save the user configuration. */
if (show_bar)
progress_bar(PROGRESS_BAR_SAVE, 0);
data_file = fopen(path_conf, "w");
if (data_file == (FILE *) 0)
status_mesg(access_pb, "");
else {
custom_color_theme_name(theme_name);
fprintf(data_file, "%s\n", config_txt);
fprintf(data_file,
"# If this option is set to yes, automatic save is done when quitting\n");
fprintf(data_file, "auto_save=\n");
fprintf(data_file, "%s\n", (conf->auto_save) ? "yes" : "no");
fprintf(data_file,
"\n# If this option is set to yes, confirmation is required before quitting\n");
fprintf(data_file, "confirm_quit=\n");
fprintf(data_file, "%s\n", (conf->confirm_quit) ? "yes" : "no");
fprintf(data_file,
"\n# If this option is set to yes, confirmation is required before deleting an event\n");
fprintf(data_file, "confirm_delete=\n");
fprintf(data_file, "%s\n",
(conf->confirm_delete) ? "yes" : "no");
fprintf(data_file,
"\n# If this option is set to yes, messages about loaded and saved data will not be displayed\n");
fprintf(data_file, "skip_system_dialogs=\n");
fprintf(data_file, "%s\n",
(conf->skip_system_dialogs) ? "yes" : "no");
fprintf(data_file,
"\n# If this option is set to yes, progress bar appearing when saving data will not be displayed\n");
fprintf(data_file, "skip_progress_bar=\n");
fprintf(data_file, "%s\n",
(conf->skip_progress_bar) ? "yes" : "no");
fprintf(data_file,
"\n# If this option is set to yes, monday is the first day of the week, else it is sunday\n");
fprintf(data_file, "week_begins_on_monday=\n");
fprintf(data_file, "%s\n",
(calendar_week_begins_on_monday()) ? "yes" : "no");
fprintf(data_file,
"\n# This is the color theme used for menus :\n");
fprintf(data_file, "color-theme=\n");
fprintf(data_file, "%s\n", theme_name);
fprintf(data_file,
"\n# This is the layout of the calendar :\n");
fprintf(data_file, "layout=\n");
fprintf(data_file, "%d\n", wins_layout());
pthread_mutex_lock(&nbar->mutex);
fprintf(data_file,
"\n# If this option is set to yes, notify-bar will be displayed :\n");
fprintf(data_file, "notify-bar_show=\n");
fprintf(data_file, "%s\n", (nbar->show) ? "yes" : "no");
fprintf(data_file,
"\n# Format of the date to be displayed inside notify-bar :\n");
fprintf(data_file, "notify-bar_date=\n");
fprintf(data_file, "%s\n", nbar->datefmt);
fprintf(data_file,
"\n# Format of the time to be displayed inside notify-bar :\n");
fprintf(data_file, "notify-bar_clock=\n");
fprintf(data_file, "%s\n", nbar->timefmt);
fprintf(data_file,
"\n# Warn user if he has an appointment within next 'notify-bar_warning' seconds :\n");
fprintf(data_file, "notify-bar_warning=\n");
fprintf(data_file, "%d\n", nbar->cntdwn);
fprintf(data_file,
"\n# Command used to notify user of an upcoming appointment :\n");
fprintf(data_file, "notify-bar_command=\n");
fprintf(data_file, "%s\n", nbar->cmd);
pthread_mutex_unlock(&nbar->mutex);
fclose(data_file);
}
/* Save the todo data file. */
if (show_bar) progress_bar(PROGRESS_BAR_SAVE, 1);
data_file = fopen(path_todo, "w");
if (data_file == (FILE *) 0)
status_mesg(access_pb, "");
else {
for (i = todolist; i != 0; i = i->next)
fprintf(data_file, "[%d] %s\n", i->id, i->mesg);
fclose(data_file);
}
/*
* Save the apts data file, which contains the
* appointments first, and then the events.
* Recursive items are written first.
*/
if (show_bar) progress_bar(PROGRESS_BAR_SAVE, 2);
data_file = fopen(path_apts, "w");
if (data_file == (FILE *) 0)
status_mesg(access_pb, "");
else {
recur_save_data(data_file);
pthread_mutex_lock(&(alist_p->mutex));
for (j = alist_p->root; j != 0; j = j->next)
apoint_write(j, data_file);
pthread_mutex_unlock(&(alist_p->mutex));
for (k = eventlist; k != 0; k = k->next)
event_write(k, data_file);
fclose(data_file);
}
/* Print a message telling data were saved */
if (!conf->skip_system_dialogs) {
status_mesg(save_success, enter);
wgetch(swin);
}
}
/*
* Check what type of data is written in the appointment file,
* and then load either: a new appointment, a new event, or a new
* recursive item (which can also be either an event or an appointment).
*/
void
io_load_app(void)
{
FILE *data_file;
int c, is_appointment, is_event, is_recursive;
struct tm start, end, until, *lt;
struct days_s *exc = NULL;
time_t t;
int id = 0;
int freq;
char type, state = 0L;
char *error =
_("FATAL ERROR in io_load_app: wrong format in the appointment or event\n");
t = time(NULL);
lt = localtime(&t);
start = end = until = *lt;
data_file = fopen(path_apts, "r");
for (;;) {
is_appointment = is_event = is_recursive = 0;
c = getc(data_file);
if (c == EOF)
break;
ungetc(c, data_file);
/* Read the date first: it is common to both events
* and appointments.
*/
if (fscanf(data_file, "%u / %u / %u ",
&start.tm_mon, &start.tm_mday, &start.tm_year) != 3) {
fputs(_("FATAL ERROR in io_load_app: "
"syntax error in the item date\n"), stderr);
exit(EXIT_FAILURE);
}
/* Read the next character : if it is an '@' then we have
* an appointment, else if it is an '[' we have en event.
*/
c = getc(data_file);
if (c == '@')
is_appointment = 1;
else if (c == '[')
is_event = 1;
else {
fputs(_("FATAL ERROR in io_load_app: "
"no event nor appointment found\n"), stderr);
exit(EXIT_FAILURE);
}
ungetc(c, data_file);
/* Read the remaining informations. */
if (is_appointment) {
fscanf(data_file, "@ %u : %u -> %u / %u / %u @ %u : %u ",
&start.tm_hour, &start.tm_min,
&end.tm_mon, &end.tm_mday, &end.tm_year,
&end.tm_hour, &end.tm_min);
} else if (is_event) {
fscanf(data_file, "[%d] ", &id);
} else { /* NOT REACHED */
fputs(error, stderr);
exit(EXIT_FAILURE);
}
/* Check if we have a recursive item. */
c = getc(data_file);
if (c == '{') {
ungetc(c, data_file);
is_recursive = 1;
fscanf(data_file, "{ %d%c ", &freq, &type);
c = getc(data_file);
if (c == '}') { /* endless recurrent item */
ungetc(c, data_file);
fscanf(data_file, "} ");
until.tm_year = 0;
} else if (c == '-') {
ungetc(c, data_file);
fscanf(data_file, " -> %u / %u / %u ",
&until.tm_mon, &until.tm_mday,
&until.tm_year);
c = getc(data_file);
if (c == '!') {
ungetc(c, data_file);
exc = recur_exc_scan(data_file);
c = getc(data_file);
} else {
ungetc(c, data_file);
fscanf(data_file, "} ");
}
} else if (c == '!') { // endless item with exceptions
ungetc(c, data_file);
exc = recur_exc_scan(data_file);
c = getc(data_file);
until.tm_year = 0;
} else { /* NOT REACHED */
fputs(error, stderr);
exit(EXIT_FAILURE);
}
} else
ungetc(c, data_file);
/*
* Last: read the item description and load it into its
* corresponding linked list, depending on the item type.
*/
if (is_appointment) {
c = getc(data_file);
if (c == '!') {
ungetc(c, data_file);
fscanf(data_file, " ! ");
state |= APOINT_NOTIFY;
} else {
ungetc(c, data_file);
fscanf(data_file, " | ");
state = 0L;
}
if (is_recursive) {
recur_apoint_scan(data_file, start, end,
type, freq, until, exc, state);
} else {
apoint_scan(data_file, start, end, state);
}
} else if (is_event) {
if (is_recursive) {
recur_event_scan(data_file, start, id,
type, freq, until, exc);
} else {
event_scan(data_file, start, id);
}
} else { /* NOT REACHED */
fputs(error, stderr);
exit(EXIT_FAILURE);
}
}
fclose(data_file);
}
/* Load the todo data */
void
io_load_todo(void)
{
FILE *data_file;
char *mesg_line1 = _("Failed to open todo file");
char *mesg_line2 = _("Press [ENTER] to continue");
char *nl;
int nb_tod = 0;
int c, id;
char buf[BUFSIZ], e_todo[BUFSIZ];
data_file = fopen(path_todo, "r");
if (data_file == NULL) {
status_mesg(mesg_line1, mesg_line2);
wgetch(swin);
}
for (;;) {
c = getc(data_file);
if (c == EOF) {
break;
} else if (c == '[') { /* new style with id */
fscanf(data_file, "%d] ", &id);
} else {
id = 9;
ungetc(c, data_file);
}
fgets(buf, BUFSIZ, data_file);
nl = strchr(buf, '\n');
if (nl) {
*nl = '\0';
}
io_extract_data(e_todo, buf, strlen(buf));
todo_add(e_todo, id);
++nb_tod;
}
fclose(data_file);
todo_set_nb(nb_tod);
}
/* Checks if data files exist. If not, create them */
int
io_check_data_files(void)
{
FILE *data_file;
int no_data_file;
no_data_file = 0;
/* Create the calcurse repertory if not present. */
mkdir(path_dir, 0700);
data_file = fopen(path_todo, "r");
if (data_file == NULL) {
no_data_file++;
data_file = fopen(path_todo, "w");
if (data_file == NULL) {
perror(path_todo);
return no_data_file;
}
}
fclose(data_file);
data_file = fopen(path_apts, "r");
if (data_file == NULL) {
no_data_file++;
data_file = fopen(path_apts, "w");
if (data_file == NULL) {
perror(path_apts);
return no_data_file;
}
}
fclose(data_file);
data_file = fopen(path_conf, "r");
if (data_file == NULL) {
no_data_file++;
data_file = fopen(path_conf, "w");
if (data_file == NULL) {
perror(path_conf);
return no_data_file;
}
}
fclose(data_file);
return no_data_file;
}
/* Draw the startup screen */
void
io_startup_screen(bool skip_dialogs, int no_data_file)
{
char *welcome_mesg =
_("Welcome to Calcurse. Missing data files were created.");
char *data_mesg = _("Data files found. Data will be loaded now.");
char *enter = _("Press [ENTER] to continue");
if (no_data_file != 0) {
status_mesg(welcome_mesg, enter);
wgetch(swin);
} else if (!skip_dialogs) {
status_mesg(data_mesg, enter);
wgetch(swin);
}
}
/* Export calcurse data. */
void
io_export_data(export_mode_t mode, conf_t *conf)
{
FILE *stream;
char *wrong_mode =
_("FATAL ERROR in io_export_data: wrong export mode\n");
char *success = _("The data were successfully exported");
char *enter = _("Press [ENTER] to continue");
switch (mode) {
case IO_EXPORT_NONINTERACTIVE:
stream = stdout;
break;
case IO_EXPORT_INTERACTIVE:
stream = io_get_export_stream();
break;
default:
fputs(wrong_mode, stderr);
exit(EXIT_FAILURE);
/* NOTREACHED */
}
io_export_header(stream);
if (!conf->skip_progress_bar && mode == IO_EXPORT_INTERACTIVE)
progress_bar(PROGRESS_BAR_EXPORT, 0);
io_export_recur_events(stream);
io_export_events(stream);
if (!conf->skip_progress_bar && mode == IO_EXPORT_INTERACTIVE)
progress_bar(PROGRESS_BAR_EXPORT, 1);
io_export_recur_apoints(stream);
io_export_apoints(stream);
if (!conf->skip_progress_bar && mode == IO_EXPORT_INTERACTIVE)
progress_bar(PROGRESS_BAR_EXPORT, 2);
io_export_todo(stream);
io_export_footer(stream);
if (stream != stdout)
fclose(stream);
if (!conf->skip_system_dialogs && mode == IO_EXPORT_INTERACTIVE) {
status_mesg(success, enter);
wgetch(swin);
}
}
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