Pileus Git - lackey/blob - src/args.c

   1 /*
   2  * Copyright (C) 2016 Andy Spencer <andy753421@gmail.com>
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stdlib.h>
  19 #include <stdio.h>
  20 #include <getopt.h>
  21
  22 #include "args.h"
  23 #include "util.h"
  24 #include "conf.h"
  25 #include "date.h"
  26 #include "cal.h"
  27
  28 /* Setup info */
  29 static int    argc;
  30 static char **argv;
  31
  32 /* Options */
  33 const char *short_options = "hdw";
  34
  35 struct option long_options[] = {
  36         {"help", 0, NULL, 'h'},
  37         {"day",  2, NULL, 'd'},
  38         {"week", 2, NULL, 'w'},
  39 };
  40
  41 static int   print_day  = 0;
  42 static int   print_week = 0;
  43 static char *calendar   = NULL;
  44
  45 /* Usage */
  46 static void usage(char *name)
  47 {
  48         printf("Usage:\n");
  49         printf("  %s [OPTION...] [CALENDAR]\n", name);
  50         printf("\n");
  51         printf("Options:\n");
  52         printf("  -h, --help  Print usage information\n");
  53         printf("  -d, --day   Show today's events\n");
  54         printf("  -w, --week  Show this week's events\n");
  55 }
  56
  57 /* Initialize */
  58 void args_setup(int _argc, char **_argv)
  59 {
  60         argc = _argc;
  61         argv = _argv;
  62 }
  63
  64 /* Initialize */
  65 void args_init(void)
  66 {
  67         /* Parse arguments */
  68         while (1) {
  69                 int c = getopt_long(argc, argv,
  70                                 short_options, long_options, NULL);
  71                 if (c == -1)
  72                         break;
  73                 switch (c) {
  74                         case 'h':
  75                                 usage(argv[0]);
  76                                 exit(0);
  77                                 break;
  78                         case 'd':
  79                                 print_day = 1;
  80                                 break;
  81                         case 'w':
  82                                 print_week = 1;
  83                                 break;
  84                 }
  85         }
  86
  87         /* Save default calendar */
  88         calendar = argv[optind];
  89
  90         /* Load calendars */
  91         for (int i = optind; i < argc; i++)
  92                 cal_config("ical", argv[i], "location", argv[i]);
  93
  94         /* Validate arguments */
  95         if (print_day && print_week)
  96                 error("Cannot print both day and week");
  97 }
  98
  99 void args_main(void)
 100 {
 101         /* Focus the default calendar */
 102         if (calendar) {
 103                 event_t *event = EVENTS;
 104                 date_t   start = {SEL.year, SEL.month, SEL.day, 0, 0};
 105                 while (event && compare(&start, &event->start) > 0)
 106                         event = event->next;
 107                 while (event && !match(calendar, event->cal->name))
 108                         event = event->next;
 109                 if (!event)
 110                         event = EVENTS;
 111                 while (event && !match(calendar, event->cal->name))
 112                         event = event->next;
 113                 if (event)
 114                         SEL = event->start;
 115         }
 116
 117         /* Print days or week */
 118         if (print_day || print_week) {
 119                 event_t *event = EVENTS;
 120                 for (int d = 0; d < (print_day ? 1 : 7); d++) {
 121                         /* Get start and end of the day */
 122                         date_t start = {SEL.year, SEL.month, SEL.day,  0, 0};
 123                         date_t end   = {SEL.year, SEL.month, SEL.day, 24, 0};
 124
 125                         add_days(&start.year, &start.month, &start.day, d);
 126                         add_days(&end.year,   &end.month,   &end.day,   d);
 127
 128
 129                         /* Print day header */
 130                         wday_t wday = day_of_week(start.year, start.month, start.day);
 131                         printf("%s%s, %s %d, %d\n",
 132                                 d ? "\n" : "",
 133                                 day_to_string(wday),
 134                                 month_to_string(start.month),
 135                                 start.day+1,
 136                                 start.year);
 137
 138                         /* Skip forward to the day */
 139                         while (event && compare(&start, &event->start) > 0)
 140                                 event = event->next;
 141
 142                         /* Print event info */
 143                         int printed = 0;
 144                         while (event && compare(&end, &event->start) > 0) {
 145                                 printf("%s  %02d:%02d",
 146                                         printed ? "\n" : "",
 147                                         event->start.hour,
 148                                         event->start.min);
 149                                 if (event->name)
 150                                         printf("  %s\n", event->name);
 151                                 if (event->desc)
 152                                         printf("\n  %s\n", event->desc);
 153                                 printed++;
 154                                 event = event->next;
 155                         }
 156
 157                         /* Print no events */
 158                         if (!printed)
 159                                 printf("  No events\n");
 160                 }
 161
 162                 exit(0);
 163         }
 164 }