git.sesse.net Git - ccbs/blob - bigscreen/ccbs_bigscreen.cpp

   1 #include <cstdio>
   2 #include <cstring>
   3 #include <iconv.h>
   4 #include <unistd.h>
   5 #include <pqxx/pqxx>
   6 #include <tinyptc.h>
   7 #include "flagtrigger.h"
   8 #include "widestring.h"
   9 #include "fetch_current_tournament.h"
  10 #include "fetch_list_of_active_groups.h"
  11 #include "fonts.h"
  12
  13 Tournament active_tournament;
  14 std::vector<Group> active_groups;
  15 unsigned char framebuf[800 * 600 * 4];
  16
  17 void init(pqxx::connection &conn)
  18 {
  19         conn.perform(FetchCurrentTournament(&active_tournament));
  20         conn.perform(FetchListOfActiveGroups(&active_groups));
  21
  22         if (active_tournament.id == -1) {
  23                 std::fprintf(stderr, "No active tournament\n");
  24         } else {
  25                 std::fprintf(stderr, "Current tournament is %d\n", active_tournament.id);
  26
  27                 for (std::vector<Group>::const_iterator i = active_groups.begin(); i != active_groups.end(); ++i) {
  28                         std::fprintf(stderr, "tourn: %u  round: %u   parallel: %u\n",
  29                                 i->tournament, i->round, i->parallel);
  30                 }
  31         }
  32 }
  33
  34 void main_loop(pqxx::connection &conn)
  35 {
  36         if (active_tournament.id == -1) {
  37                 // No active tournament, sleep a second or so and exit
  38                 sleep(1);
  39                 return;
  40         }
  41
  42         memset(framebuf, 0, 800*600*4);
  43
  44         pqxx::work t(conn, "trx");
  45
  46         // fetch all songs
  47         pqxx::result res( t.exec("SELECT * FROM songs WHERE title LIKE 'M%'") );
  48         unsigned y = 0;
  49         for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
  50                 my_draw_text(i["title"].as(widestring()), framebuf, 0, y, 1, 255, 255, 255);
  51                 y += 20;
  52 //              std::fprintf(stderr, "%s\n", i["title"].c_str());
  53         }
  54         t.commit();
  55
  56         ptc_update(framebuf);
  57         sleep(1);
  58 }
  59
  60 int main(int argc, char **argv)
  61 {
  62         ptc_open("CCBS bigscreen", 800, 600);
  63
  64         try {
  65                 init_freetype();
  66                 pqxx::connection conn("dbname=ccbs host=altersex.samfundet.no user=ccbs password=GeT|>>B_");
  67                 FlagTrigger tournament_changed(conn, "active_tournament");
  68                 FlagTrigger rounds_changed(conn, "active_groups");
  69
  70                 // when active_tournament or active_rounds is changed, we destroy everything and start from scratch
  71                 // (at least currently)
  72                 for ( ;; ) {
  73                         tournament_changed.reset_flag();
  74                         rounds_changed.reset_flag();
  75                         init(conn);
  76                         do {
  77                                 main_loop(conn);
  78                                 conn.get_notifs();
  79                         } while (!tournament_changed.get_flag() && !rounds_changed.get_flag());
  80                         std::fprintf(stderr, "active_tournament or active_groups changed, resetting...\n");
  81                 }
  82         } catch (const std::exception &e) {
  83                 std::fprintf(stderr, "Exception: %s\n", e.what());
  84                 exit(1);
  85         }
  86
  87         return 0;
  88 }