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/**
* 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.cache
import android.content.Context
import kotlinx.coroutines.Job
import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cCourse
import org.mosad.seil0.projectlaogai.controller.TCoRAPIController
import org.mosad.seil0.projectlaogai.util.Lesson
import org.mosad.seil0.projectlaogai.util.TimetableWeek
/**
* The TimetableController contains the timetable, subjectMap
* and lessonMap objects. It also contains the additional subjects logic.
* All functions ro read or update cache files are located in the CacheController.
*
* TODO add configurable week to addSubject() and removeSubject(), updateAdditionalLessons()
*/
class TimetableController {
companion object {
val timetable = ArrayList<TimetableWeek>()
val lessonMap = HashMap<String, Lesson>() // the key is courseName-subject-lessonID
val subjectMap = HashMap<String, ArrayList<String>>() // the key is courseName
/**
* update the main timetable and all additional subjects, async
*/
fun update(context: Context): List<Job> {
return listOf(
CacheController.updateTimetable(cCourse.courseName, 0, context),
CacheController.updateTimetable(cCourse.courseName, 1, context),
CacheController.updateAdditionalLessons(context)
)
}
/**
* add a subject to the subjectMap and all it's lessons
* to the lessonMap
* @param courseName course to which the subject belongs
* @param subject the subjects name
*/
fun addSubject(courseName: String, subject: String, context: Context) {
// add subject
if (subjectMap.containsKey(courseName)) {
subjectMap[courseName]?.add(subject)
} else {
subjectMap[courseName] = arrayListOf(subject)
}
// add concrete lessons
TCoRAPIController.getLessons(courseName, subject, 0).forEach { lesson ->
addLesson(courseName, subject, lesson)
}
CacheController.saveAdditionalSubjects(context)
}
/**
* remove a subject from the subjectMap and all it's lessons
* from the lessonMap
* @param courseName course to which the subject belongs
* @param subject the subjects name
*/
fun removeSubject(courseName: String, subject: String, context: Context) {
// remove subject
subjectMap[courseName]?.remove(subject)
// remove concrete lessons
val iterator = lessonMap.iterator()
while (iterator.hasNext()) {
val it = iterator.next()
if(it.key.contains("$courseName-$subject")) {
// remove the lesson from the lessons list
iterator.remove() // use iterator to remove, otherwise ConcurrentModificationException
// remove the lesson from the timetable
val id = it.value.lessonID.split(".")
if(id.size == 3)
timetable[0].days[id[0].toInt()].timeslots[id[1].toInt()].remove(it.value)
}
}
CacheController.saveAdditionalSubjects(context)
}
/**
* add a lesson to the lessonMap, also add it to the timetable
*/
fun addLesson(courseName: String, subject: String, lesson: Lesson) {
//the courseName, subject and lessonID, separator: -
val key = "$courseName-$subject-${lesson.lessonID}"
lessonMap[key] = lesson
addLessonToTimetable(lesson)
}
/**
* add a lesson to the timetable
*/
fun addLessonToTimetable(lesson: Lesson) {
val id = lesson.lessonID.split(".")
if(id.size == 3)
timetable[0].days[id[0].toInt()].timeslots[id[1].toInt()].add(lesson)
}
}
}

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