git.sesse.net Git - pkanalytics/blob - events.cpp

   1 #include <algorithm>
   2 #include <string>
   3 #include <map>
   4 #include <vector>
   5 #include <optional>
   6 #include <sqlite3.h>
   7 #include "events.h"
   8
   9 using namespace std;
  10
  11 string format_timestamp(uint64_t pos);
  12
  13 EventsModel::EventsModel(sqlite3 *db) : db(db)
  14 {
  15         load_data();
  16 }
  17
  18 QVariant EventsModel::headerData(int section, Qt::Orientation orientation, int role) const
  19 {
  20         if (role != Qt::DisplayRole) {
  21                 return QVariant();
  22         }
  23         if (orientation == Qt::Horizontal) {
  24                 if (section == 0) {
  25                         return "Time";
  26                 } else if (section == 1) {
  27                         return "Player";
  28                 } else {
  29                         return "Type";
  30                 }
  31         } else {
  32                 return "";
  33         }
  34 }
  35
  36 QVariant EventsModel::data(const QModelIndex &index, int role) const
  37 {
  38         if (role != Qt::DisplayRole) {
  39                 return QVariant();
  40         }
  41         if (index.column() == 0) {
  42                 return QString::fromUtf8(format_timestamp(events[index.row()].t));
  43         } else if (index.column() == 1) {
  44                 optional<int> player_id = events[index.row()].player_id;
  45                 if (player_id) {
  46                         auto p_it = players.find(*player_id);
  47                         const Player &p = p_it->second;
  48                         return QString::fromUtf8(p.name + " (" + p.number + ")");
  49                 } else {
  50                         return QVariant();
  51                 }
  52         } else if (index.column() == 2) {
  53                 return QString::fromUtf8(events[index.row()].type);
  54         }
  55         return QVariant();
  56 }
  57
  58 void EventsModel::load_data()
  59 {
  60         players.clear();
  61         events.clear();
  62
  63         // Read the players.
  64         sqlite3_stmt *stmt;
  65         int ret = sqlite3_prepare_v2(db, "SELECT player, number, name FROM player", -1, &stmt, 0);
  66         if (ret != SQLITE_OK) {
  67                 fprintf(stderr, "SELECT prepare: %s\n", sqlite3_errmsg(db));
  68                 abort();
  69         }
  70         for ( ;; ) {
  71                 ret = sqlite3_step(stmt);
  72                 if (ret == SQLITE_ROW) {
  73                         Player p;
  74                         p.player_id = sqlite3_column_int(stmt, 0);
  75                         p.number = (const char *)sqlite3_column_text(stmt, 1);
  76                         p.name = (const char *) sqlite3_column_text(stmt, 2);
  77                         players[p.player_id] = std::move(p);
  78                 } else if (ret == SQLITE_DONE) {
  79                         break;
  80                 } else {
  81                         fprintf(stderr, "SELECT step: %s\n", sqlite3_errmsg(db));
  82                         abort();
  83                 }
  84         }
  85         ret = sqlite3_finalize(stmt);
  86         if (ret != SQLITE_OK) {
  87                 fprintf(stderr, "SELECT finalize: %s\n", sqlite3_errmsg(db));
  88                 abort();
  89         }
  90
  91         // Read the events.
  92         ret = sqlite3_prepare_v2(db, "SELECT event, t, player, type FROM event ORDER BY t", -1, &stmt, 0);
  93         if (ret != SQLITE_OK) {
  94                 fprintf(stderr, "SELECT prepare: %s\n", sqlite3_errmsg(db));
  95                 abort();
  96         }
  97         for ( ;; ) {
  98                 ret = sqlite3_step(stmt);
  99                 if (ret == SQLITE_ROW) {
 100                         Event e;
 101                         e.event_id = sqlite3_column_int(stmt, 0);
 102                         e.t = sqlite3_column_int(stmt, 1);
 103                         e.player_id = sqlite3_column_int(stmt, 2);
 104                         e.type = (const char *)sqlite3_column_text(stmt, 3);
 105                         events.push_back(std::move(e));
 106                 } else if (ret == SQLITE_DONE) {
 107                         break;
 108                 } else {
 109                         fprintf(stderr, "SELECT step: %s\n", sqlite3_errmsg(db));
 110                         abort();
 111                 }
 112         }
 113         ret = sqlite3_finalize(stmt);
 114         if (ret != SQLITE_OK) {
 115                 fprintf(stderr, "SELECT finalize: %s\n", sqlite3_errmsg(db));
 116                 abort();
 117         }
 118 }
 119
 120 unsigned EventsModel::insert_event(uint64_t t, int player_id, const string &type)
 121 {
 122         auto it = lower_bound(events.begin(), events.end(), t,
 123                 [](const Event &e, uint64_t t) { return e.t < t; });
 124         unsigned pos = distance(events.begin(), it);
 125         beginInsertRows(QModelIndex(), pos, pos);
 126
 127         Event e;
 128         e.t = t;
 129         e.player_id = player_id;
 130         e.type = type;
 131         events.insert(events.begin() + pos, e);
 132
 133         endInsertRows();
 134
 135         // Insert the new row into the database.
 136         sqlite3_stmt *stmt;
 137         int ret = sqlite3_prepare_v2(db, "INSERT INTO event (t, player, type) VALUES (?, ?, ?)", -1, &stmt, 0);
 138         if (ret != SQLITE_OK) {
 139                 fprintf(stderr, "INSERT prepare: %s\n", sqlite3_errmsg(db));
 140                 abort();
 141         }
 142
 143         sqlite3_bind_int64(stmt, 1, t);
 144         sqlite3_bind_int64(stmt, 2, player_id);
 145         sqlite3_bind_text(stmt, 3, type.data(), type.size(), SQLITE_STATIC);
 146
 147         ret = sqlite3_step(stmt);
 148         if (ret == SQLITE_ROW) {
 149                 fprintf(stderr, "INSERT step: %s\n", sqlite3_errmsg(db));
 150                 abort();
 151         }
 152
 153         ret = sqlite3_finalize(stmt);
 154         if (ret != SQLITE_OK) {
 155                 fprintf(stderr, "INSERT finalize: %s\n", sqlite3_errmsg(db));
 156                 abort();
 157         }
 158
 159         events[pos].event_id = sqlite3_last_insert_rowid(db);
 160         return pos;
 161 }
 162
 163 void EventsModel::delete_event(unsigned pos)
 164 {
 165         int event_id = events[pos].event_id;
 166
 167         beginRemoveRows(QModelIndex(), pos, pos);
 168         events.erase(events.begin() + pos);
 169         endRemoveRows();
 170
 171         // Delete the row from the database.
 172         sqlite3_stmt *stmt;
 173         int ret = sqlite3_prepare_v2(db, "DELETE FROM event WHERE event=?", -1, &stmt, 0);
 174         if (ret != SQLITE_OK) {
 175                 fprintf(stderr, "DELETE prepare: %s\n", sqlite3_errmsg(db));
 176                 abort();
 177         }
 178
 179         sqlite3_bind_int64(stmt, 1, event_id);
 180
 181         ret = sqlite3_step(stmt);
 182         if (ret == SQLITE_ROW) {
 183                 fprintf(stderr, "DELETE step: %s\n", sqlite3_errmsg(db));
 184                 abort();
 185         }
 186
 187         ret = sqlite3_finalize(stmt);
 188         if (ret != SQLITE_OK) {
 189                 fprintf(stderr, "DELETE finalize: %s\n", sqlite3_errmsg(db));
 190                 abort();
 191         }
 192 }
 193
 194 void EventsModel::set_event_type(unsigned pos, const string &type)
 195 {
 196         events[pos].type = type;
 197         emit dataChanged(createIndex(pos, 0), createIndex(pos, 2));
 198
 199         sqlite3_stmt *stmt;
 200         int ret = sqlite3_prepare_v2(db, "UPDATE event SET type=? WHERE event=?", -1, &stmt, 0);
 201         if (ret != SQLITE_OK) {
 202                 fprintf(stderr, "INSERT prepare: %s\n", sqlite3_errmsg(db));
 203                 abort();
 204         }
 205
 206         sqlite3_bind_text(stmt, 1, type.data(), type.size(), SQLITE_STATIC);
 207         sqlite3_bind_int64(stmt, 2, events[pos].event_id);
 208
 209         ret = sqlite3_step(stmt);
 210         if (ret == SQLITE_ROW) {
 211                 fprintf(stderr, "UPDATE step: %s\n", sqlite3_errmsg(db));
 212                 abort();
 213         }
 214
 215         ret = sqlite3_finalize(stmt);
 216         if (ret != SQLITE_OK) {
 217                 fprintf(stderr, "UPDATE finalize: %s\n", sqlite3_errmsg(db));
 218                 abort();
 219         }
 220 }
 221
 222 EventsModel::Status EventsModel::get_status_at(uint64_t t)
 223 {
 224         Status s;
 225         s.our_score = 0;
 226         s.their_score = 0;
 227         s.offense = true;
 228         uint64_t last_gained_possession = 0;
 229         unsigned num_touches = 0;
 230         for (const Event &e : events) {
 231                 if (e.t > t) {
 232                         break;
 233                 }
 234                 if (e.type == "goal") {
 235                         ++s.our_score;
 236                         s.offense = false;
 237                         num_touches = 0;
 238                 }
 239                 if (e.type == "their_goal") {
 240                         ++s.their_score;
 241                         s.offense = true;
 242                         num_touches = 0;
 243                 }
 244                 if (e.type == "catch") {
 245                         if (num_touches == 0) {  // Pick up.
 246                                 last_gained_possession = e.t;
 247                         }
 248                         ++num_touches;
 249                 }
 250                 if (e.type == "interception") {
 251                         num_touches = 1;
 252                         s.offense = true;
 253                         last_gained_possession = e.t;
 254                 }
 255         }
 256         s.num_passes = (num_touches == 0) ? 0 : num_touches - 1;
 257         s.possession_sec = (s.offense && last_gained_possession != 0) ? (t - last_gained_possession) / 1000 : 0;
 258         return s;
 259 }
 260
 261 set<int> EventsModel::get_team_at(uint64_t t)
 262 {
 263         set<int> team;
 264         for (const Event &e : events) {
 265                 if (e.t > t) {
 266                         break;
 267                 }
 268                 if (e.type == "in") {
 269                         team.insert(*e.player_id);
 270                 }
 271                 if (e.type == "out") {
 272                         team.erase(*e.player_id);
 273                 }
 274         }
 275         return team;
 276 }