ref: 0d0fd114673cd6655cbcac5d4a51c8cd537f55c1
app/src/main/java/ml/adamsprogs/bimba/models/Timetable.kt
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 |
package ml.adamsprogs.bimba.models import android.content.Context import android.database.CursorIndexOutOfBoundsException import android.database.sqlite.SQLiteCantOpenDatabaseException import android.database.sqlite.SQLiteDatabase import android.database.sqlite.SQLiteDatabaseCorruptException import java.io.File class Timetable private constructor() { companion object { val version = 1 val MODE_WORKDAYS = "workdays" val MODE_SATURDAYS = "saturdays" val MODE_SUNDAYS = "sundays" private var timetable: Timetable? = null fun getTimetable(context: Context? = null, force: Boolean = false): Timetable { if (timetable == null || force) if (context != null) { val db: SQLiteDatabase? try { db = SQLiteDatabase.openDatabase(File(context.filesDir, "timetable.db").path, null, SQLiteDatabase.OPEN_READONLY) } catch(e: NoSuchFileException) { throw SQLiteCantOpenDatabaseException("no such file") } catch(e: SQLiteCantOpenDatabaseException) { throw SQLiteCantOpenDatabaseException("cannot open db") } catch(e: SQLiteDatabaseCorruptException) { throw SQLiteCantOpenDatabaseException("db corrupt") } timetable = Timetable() timetable!!.db = db return timetable as Timetable } else throw IllegalArgumentException("new timetable requested and no context given") else return timetable as Timetable } } lateinit var db: SQLiteDatabase private var _stops: ArrayList<StopSuggestion>? = null private val _stopDepartures = HashMap<String, HashMap<String, ArrayList<Departure>>>() private val _stopDeparturesCount = HashMap<String, Int>() fun refresh(context: Context) { val db: SQLiteDatabase? try { db = SQLiteDatabase.openDatabase(File(context.filesDir, "timetable.db").path, null, SQLiteDatabase.OPEN_READONLY) } catch(e: NoSuchFileException) { throw SQLiteCantOpenDatabaseException("no such file") } catch(e: SQLiteCantOpenDatabaseException) { throw SQLiteCantOpenDatabaseException("cannot open db") } catch(e: SQLiteDatabaseCorruptException) { throw SQLiteCantOpenDatabaseException("db corrupt") } this.db = db for ((k, _) in _stopDepartures) _stopDepartures.remove(k) //todo recreate cache } fun getStops(): ArrayList<StopSuggestion> { if (_stops != null) return _stops!! val stops = ArrayList<StopSuggestion>() val cursor = db.rawQuery("select name ||char(10)|| headsigns as suggestion, id, stops.symbol || number as stopSymbol from stops" + " join nodes on(stops.symbol = nodes.symbol) order by name, id;", null) while (cursor.moveToNext()) stops.add(StopSuggestion(cursor.getString(0), cursor.getString(1), cursor.getString(2))) cursor?.close() _stops = stops return stops } fun getStopName(stopId: String): String { val cursor = db.rawQuery("select name from nodes join stops on(stops.symbol = nodes.symbol) where id = ?;", listOf(stopId).toTypedArray()) val name: String cursor.moveToNext() name = cursor.getString(0) cursor.close() return name } fun getStopSymbol(stopId: String): String { val cursor = db.rawQuery("select symbol||number from stops where id = ?", listOf(stopId).toTypedArray()) val symbol: String cursor.moveToNext() symbol = cursor.getString(0) cursor.close() return symbol } fun getLineNumber(lineId: String): String { val cursor = db.rawQuery("select number from lines where id = ?", listOf(lineId).toTypedArray()) val number: String cursor.moveToNext() number = cursor.getString(0) cursor.close() return number } fun getStopDepartures(stopId: String, lineId: String? = null, tomorrow: Boolean = false): HashMap<String, ArrayList<Departure>> { val andLine: String = if (lineId == null) "" else "and line_id = '$lineId'" if (lineId == null && _stopDepartures.contains(stopId)) { _stopDeparturesCount[stopId] = _stopDeparturesCount[stopId]!! + 1 return _stopDepartures[stopId]!! } _stopDeparturesCount[stopId] = _stopDeparturesCount[stopId]?:0 + 1 val cursor = db.rawQuery("select lines.number, mode, substr('0'||hour, -2) || ':' || " + "substr('0'||minute, -2) as time, lowFloor, modification, headsign from departures join " + "timetables on(timetable_id = timetables.id) join lines on(line_id = lines.id) where " + "stop_id = ? $andLine order by mode, time;", listOf(stopId).toTypedArray()) val departures = HashMap<String, ArrayList<Departure>>() departures.put(MODE_WORKDAYS, ArrayList()) departures.put(MODE_SATURDAYS, ArrayList()) departures.put(MODE_SUNDAYS, ArrayList()) while (cursor.moveToNext()) { departures[cursor.getString(1)]?.add(Departure(cursor.getString(0), cursor.getString(1), cursor.getString(2), cursor.getInt(3) == 1, cursor.getString(4), cursor.getString(5), tomorrow = tomorrow)) } cursor.close() if (lineId == null) { if (_stopDepartures.size < 10) _stopDepartures[stopId] = departures else { for ((key, value) in _stopDeparturesCount) { if (value < _stopDeparturesCount[stopId]!!) { _stopDepartures.remove(key) _stopDepartures[stopId] = departures break } } } } return departures } fun getLines(stopId: String): ArrayList<String> { val cursor = db.rawQuery(" select distinct line_id from timetables join " + "stops on(stop_id = stops.id) where stops.id = ?;", listOf(stopId).toTypedArray()) val lines = ArrayList<String>() while (cursor.moveToNext()) { lines.add(cursor.getString(0)) } cursor.close() return lines } fun getFavouriteElement(stop: String, line: String): String { val cursor = db.rawQuery("select name || ' (' || stops.symbol || stops.number || '): \n' " + "|| lines.number || ' → ' || headsign from timetables join stops on (stops.id = stop_id) " + "join lines on(lines.id = line_id) join nodes on(nodes.symbol = stops.symbol) where " + "stop_id = ? and line_id = ?", listOf(stop, line).toTypedArray()) val element: String cursor.moveToNext() element = cursor.getString(0) cursor.close() return element } fun isEmpty(): Boolean { val cursor = db.rawQuery("select * from metadata;", null) try { cursor.moveToNext() cursor.getString(0) cursor.close() } catch(e: CursorIndexOutOfBoundsException) { return true } return false } fun getValidity(): String { val cursor = db.rawQuery("select value from metadata where key = 'validFrom'", null) cursor.moveToNext() val validity = cursor.getString(0) cursor.close() return "%s-%s-%s".format(validity.substring(0..3), validity.substring(4..5), validity.substring(6..7)) } } |