177 lines
7.0 KiB
Kotlin
177 lines
7.0 KiB
Kotlin
/**
|
|
* 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.getMensaMenu(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.getMensaMenu(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.getMensaMenu(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)
|
|
}
|
|
|
|
} |