You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
177 lines
6.9 KiB
177 lines
6.9 KiB
/** |
|
* ProjectLaogai |
|
* |
|
* Copyright 2019-2020 <seil0@mosad.xyz> |
|
* |
|
* 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 3 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., 51 Franklin Street, Fifth Floor, Boston, |
|
* MA 02110-1301, USA. |
|
* |
|
*/ |
|
|
|
package org.mosad.seil0.projectlaogai.controller |
|
|
|
import android.content.Context |
|
import android.util.Log |
|
import com.google.gson.Gson |
|
import com.google.gson.GsonBuilder |
|
import com.google.gson.JsonParser |
|
import com.google.gson.reflect.TypeToken |
|
import kotlinx.coroutines.* |
|
import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cCourse |
|
import org.mosad.seil0.projectlaogai.hsoparser.Course |
|
import org.mosad.seil0.projectlaogai.hsoparser.MensaMenu |
|
import org.mosad.seil0.projectlaogai.hsoparser.TimetableCourseWeek |
|
import java.io.BufferedReader |
|
import java.io.File |
|
import java.io.FileReader |
|
import java.util.* |
|
import kotlin.collections.ArrayList |
|
|
|
class CacheController(cont: Context) { |
|
|
|
private val className = "CacheController" |
|
private val context = cont |
|
|
|
init { |
|
val cal = Calendar.getInstance() |
|
val currentDay = Calendar.getInstance().get(Calendar.DAY_OF_WEEK) |
|
val currentTime = System.currentTimeMillis() / 1000 |
|
|
|
// check if we need to update the mensa data before displaying it |
|
readMensa(context) |
|
cal.time = Date(mensaMenu.meta.updateTime * 1000) |
|
|
|
// if a) it's monday and the last cache update was on sunday or b) the cache is older than 24hr, update blocking |
|
if ((currentDay == Calendar.MONDAY && cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) || (currentTime - mensaMenu.meta.updateTime) > 86400) { |
|
Log.i(className, "update mensa blocking") |
|
GlobalScope.launch(Dispatchers.Default) { TCoRAPIController.getMensa(context).join() } |
|
} |
|
|
|
// check if we need to update the timetables before displaying them |
|
readTimetable(cCourse.courseName, 0, context) |
|
cal.time = Date(timetables[0].meta.updateTime * 1000) |
|
|
|
// if a) it`s monday and the last cache update was not on a sunday or b) the cache is older than 24hr, update blocking |
|
if ((currentDay == Calendar.MONDAY && cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) || (currentTime - timetables[0].meta.updateTime) > 86400) { |
|
Log.i(className, "updating timetable after sunday!") |
|
|
|
GlobalScope.launch(Dispatchers.Default) { |
|
val threads = listOf( |
|
TCoRAPIController.getTimetable(cCourse.courseName, 0, context), |
|
TCoRAPIController.getTimetable(cCourse.courseName, 1, context) |
|
) |
|
threads.joinAll() |
|
} |
|
|
|
TCoRAPIController.getTimetable(cCourse.courseName, 0, context) |
|
TCoRAPIController.getTimetable(cCourse.courseName, 1, context) |
|
} |
|
|
|
// check if an update is necessary, not blocking |
|
if (currentTime - PreferencesController.coursesCacheTime > 86400) |
|
TCoRAPIController.getCoursesList(context) |
|
|
|
if (currentTime - PreferencesController.mensaCacheTime > 10800) |
|
TCoRAPIController.getMensa(context) |
|
|
|
if (currentTime - PreferencesController.timetableCacheTime > 10800) { |
|
TCoRAPIController.getTimetable(cCourse.courseName, 0, context) |
|
TCoRAPIController.getTimetable(cCourse.courseName, 1, context) |
|
} |
|
|
|
readStartCache(cCourse.courseName) |
|
} |
|
|
|
companion object { |
|
var coursesList = ArrayList<Course>() |
|
var timetables = ArrayList<TimetableCourseWeek>() |
|
var mensaMenu = MensaMenu() |
|
|
|
/** |
|
* read the courses list from the cached file |
|
* add them to the coursesList object |
|
*/ |
|
private fun readCoursesList(context: Context) { |
|
val file = File(context.filesDir, "courses.json") |
|
|
|
// make sure the file exists |
|
if (!file.exists()) |
|
runBlocking { TCoRAPIController.getCoursesList(context).join() } |
|
|
|
val fileReader = FileReader(file) |
|
val bufferedReader = BufferedReader(fileReader) |
|
val coursesObject = JsonParser.parseString(bufferedReader.readLine()).asJsonObject |
|
|
|
coursesList = Gson().fromJson( |
|
coursesObject.getAsJsonArray("courses"), |
|
object : TypeToken<List<Course>>() {}.type |
|
) |
|
} |
|
|
|
/** |
|
* get the MensaMenu object from the cached json, |
|
* if cache is empty create the cache file |
|
*/ |
|
fun readMensa(context: Context) { |
|
val file = File(context.filesDir, "mensa.json") |
|
|
|
// make sure the file exists |
|
if (!file.exists()) |
|
runBlocking { TCoRAPIController.getMensa(context).join() } |
|
|
|
val fileReader = FileReader(file) |
|
val bufferedReader = BufferedReader(fileReader) |
|
val mensaObject = JsonParser.parseString(bufferedReader.readLine()).asJsonObject |
|
|
|
mensaMenu = GsonBuilder().create().fromJson(mensaObject, MensaMenu().javaClass) |
|
} |
|
|
|
/** |
|
* read the weeks timetable from the cached file |
|
* @param courseName the course name (e.g AI1) |
|
* @param week the week to read (0 for the current and so on) |
|
*/ |
|
fun readTimetable(courseName: String, week: Int, context: Context) { |
|
val file = File(context.filesDir, "timetable-$courseName-$week.json") |
|
|
|
// make sure the file exists |
|
if (!file.exists()) |
|
runBlocking { TCoRAPIController.getTimetable(courseName, week, context).join() } |
|
|
|
val fileReader = FileReader(file) |
|
val bufferedReader = BufferedReader(fileReader) |
|
val timetableObject = JsonParser.parseString(bufferedReader.readLine()).asJsonObject |
|
|
|
// make sure you add the single weeks in the exact order! |
|
if (timetables.size > week) { |
|
timetables[week] = (Gson().fromJson(timetableObject, TimetableCourseWeek().javaClass)) |
|
} else { |
|
timetables.add(Gson().fromJson(timetableObject, TimetableCourseWeek().javaClass)) |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* read coursesList, mensa (current and next week), timetable (current and next week) |
|
* @param courseName the course name (e.g AI1) |
|
*/ |
|
private fun readStartCache(courseName: String) { |
|
readCoursesList(context) |
|
readMensa(context) |
|
readTimetable(courseName, 0, context) |
|
readTimetable(courseName, 1, context) |
|
} |
|
|
|
} |