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/*
* Copyright 2018 Allan Wang
*
* 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, see <http://www.gnu.org/licenses/>.
*/
package com.pitchedapps.frost.services
import android.app.job.JobInfo
import android.app.job.JobParameters
import android.app.job.JobScheduler
import android.content.ComponentName
import android.content.Context
import android.content.Intent
import android.os.BaseBundle
import android.os.PersistableBundle
import com.pitchedapps.frost.facebook.requests.RequestAuth
import com.pitchedapps.frost.facebook.requests.fbAuth
import com.pitchedapps.frost.facebook.requests.markNotificationRead
import com.pitchedapps.frost.utils.EnumBundle
import com.pitchedapps.frost.utils.EnumBundleCompanion
import com.pitchedapps.frost.utils.EnumCompanion
import com.pitchedapps.frost.utils.L
import com.pitchedapps.frost.utils.Prefs
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
/**
* Created by Allan Wang on 28/12/17.
*/
/**
* Private helper data
*/
private enum class FrostRequestCommands : EnumBundle<FrostRequestCommands> {
NOTIF_READ {
override fun invoke(auth: RequestAuth, bundle: PersistableBundle) {
val id = bundle.getLong(ARG_0, -1L)
val success = auth.markNotificationRead(id).invoke()
L.d { "Marked notif $id as read: $success" }
}
override fun propagate(bundle: BaseBundle) =
FrostRunnable.prepareMarkNotificationRead(
bundle.getLong(ARG_0),
bundle.getCookie()
)
};
override val bundleContract: EnumBundleCompanion<FrostRequestCommands>
get() = Companion
/**
* Call request with arguments inside bundle
*/
abstract fun invoke(auth: RequestAuth, bundle: PersistableBundle)
/**
* Return bundle builder given arguments in the old bundle
* Must not write to old bundle!
*/
abstract fun propagate(bundle: BaseBundle): BaseBundle.() -> Unit
companion object : EnumCompanion<FrostRequestCommands>("frost_arg_commands", values())
}
private const val ARG_COMMAND = "frost_request_command"
private const val ARG_COOKIE = "frost_request_cookie"
private const val ARG_0 = "frost_request_arg_0"
private const val ARG_1 = "frost_request_arg_1"
private const val ARG_2 = "frost_request_arg_2"
private const val ARG_3 = "frost_request_arg_3"
private fun BaseBundle.getCookie(): String = getString(ARG_COOKIE)!!
private fun BaseBundle.putCookie(cookie: String) = putString(ARG_COOKIE, cookie)
/**
* Singleton handler for running requests in [FrostRequestService]
* Requests are typically completely decoupled from the UI,
* and are optional enhancers.
*
* Nothing guarantees the completion time, or whether it even executes at all
*
* Design:
* prepare function - creates a bundle binder
* actor function - calls the service with the given arguments
*
* Global:
* propagator - given a bundle with a command, extracts and executes the requests
*/
object FrostRunnable {
fun prepareMarkNotificationRead(id: Long, cookie: String): BaseBundle.() -> Unit = {
FrostRequestCommands.NOTIF_READ.put(this)
putLong(ARG_0, id)
putCookie(cookie)
}
fun markNotificationRead(context: Context, id: Long, cookie: String): Boolean {
if (id <= 0) {
L.d { "Invalid notification id $id for marking as read" }
return false
}
return schedule(
context, FrostRequestCommands.NOTIF_READ,
prepareMarkNotificationRead(id, cookie)
)
}
fun propagate(context: Context, intent: Intent?) {
val extras = intent?.extras ?: return
val command = FrostRequestCommands[intent] ?: return
intent.removeExtra(ARG_COMMAND) // reset
L.d { "Propagating command ${command.name}" }
val builder = command.propagate(extras)
schedule(context, command, builder)
}
private fun schedule(
context: Context,
command: FrostRequestCommands,
bundleBuilder: PersistableBundle.() -> Unit
): Boolean {
val scheduler = context.getSystemService(Context.JOB_SCHEDULER_SERVICE) as JobScheduler
val serviceComponent = ComponentName(context, FrostRequestService::class.java)
val bundle = PersistableBundle()
bundle.bundleBuilder()
bundle.putString(ARG_COMMAND, command.name)
if (bundle.getCookie().isNullOrBlank()) {
L.e { "Scheduled frost request with empty cookie" }
return false
}
val builder = JobInfo.Builder(REQUEST_SERVICE_BASE + command.ordinal, serviceComponent)
.setMinimumLatency(0L)
.setExtras(bundle)
.setOverrideDeadline(2000L)
.setRequiredNetworkType(JobInfo.NETWORK_TYPE_ANY)
val result = scheduler.schedule(builder.build())
if (result <= 0) {
L.eThrow("FrostRequestService scheduler failed for ${command.name}")
return false
}
L.d { "Scheduled ${command.name}" }
return true
}
}
class FrostRequestService : BaseJobService() {
override fun onStartJob(params: JobParameters?): Boolean {
super.onStartJob(params)
if (!Prefs.authRequests) {
L.i { "Auth requests disabled; skipping request service" }
return false
}
val bundle = params?.extras
if (bundle == null) {
L.eThrow("Launched ${this::class.java.simpleName} without param data")
return false
}
val cookie = bundle.getCookie()
if (cookie.isBlank()) {
L.eThrow("Launched ${this::class.java.simpleName} without cookie")
return false
}
val command = FrostRequestCommands[bundle]
if (command == null) {
L.eThrow("Launched ${this::class.java.simpleName} without command")
return false
}
launch(Dispatchers.IO) {
try {
val auth = fbAuth.fetch(cookie).await()
command.invoke(auth, bundle)
L.d {
"Finished frost service for ${command.name} in ${System.currentTimeMillis() - startTime} ms"
}
} catch (e: Exception) {
L.e(e) { "Failed frost service for ${command.name} in ${System.currentTimeMillis() - startTime} ms" }
} finally {
jobFinished(params, false)
}
}
return true
}
}
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