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/*
* Copyright (C) 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.systemui.flags
import java.io.PrintWriter
class FakeFeatureFlags : FeatureFlags {
private val booleanFlags = mutableMapOf<Int, Boolean>()
private val stringFlags = mutableMapOf<Int, String>()
private val intFlags = mutableMapOf<Int, Int>()
private val knownFlagNames = mutableMapOf<Int, String>()
private val flagListeners = mutableMapOf<Int, MutableSet<FlagListenable.Listener>>()
private val listenerFlagIds = mutableMapOf<FlagListenable.Listener, MutableSet<Int>>()
init {
FlagsFactory.knownFlags.forEach { entry: Map.Entry<String, Flag<*>> ->
knownFlagNames[entry.value.id] = entry.key
}
}
fun set(flag: BooleanFlag, value: Boolean) {
if (booleanFlags.put(flag.id, value)?.let { value != it } != false) {
notifyFlagChanged(flag)
}
}
fun set(flag: ResourceBooleanFlag, value: Boolean) {
if (booleanFlags.put(flag.id, value)?.let { value != it } != false) {
notifyFlagChanged(flag)
}
}
fun set(flag: SysPropBooleanFlag, value: Boolean) {
if (booleanFlags.put(flag.id, value)?.let { value != it } != false) {
notifyFlagChanged(flag)
}
}
fun set(flag: StringFlag, value: String) {
if (stringFlags.put(flag.id, value)?.let { value != it } == null) {
notifyFlagChanged(flag)
}
}
fun set(flag: ResourceStringFlag, value: String) {
if (stringFlags.put(flag.id, value)?.let { value != it } == null) {
notifyFlagChanged(flag)
}
}
private fun notifyFlagChanged(flag: Flag<*>) {
flagListeners[flag.id]?.let { listeners ->
listeners.forEach { listener ->
listener.onFlagChanged(
object : FlagListenable.FlagEvent {
override val flagName = flag.name
override fun requestNoRestart() {}
}
)
}
}
}
override fun isEnabled(flag: UnreleasedFlag): Boolean = requireBooleanValue(flag.id)
override fun isEnabled(flag: ReleasedFlag): Boolean = requireBooleanValue(flag.id)
override fun isEnabled(flag: ResourceBooleanFlag): Boolean = requireBooleanValue(flag.id)
override fun isEnabled(flag: SysPropBooleanFlag): Boolean = requireBooleanValue(flag.id)
override fun getString(flag: StringFlag): String = requireStringValue(flag.id)
override fun getString(flag: ResourceStringFlag): String = requireStringValue(flag.id)
override fun getInt(flag: IntFlag): Int = requireIntValue(flag.id)
override fun getInt(flag: ResourceIntFlag): Int = requireIntValue(flag.id)
override fun addListener(flag: Flag<*>, listener: FlagListenable.Listener) {
flagListeners.getOrPut(flag.id) { mutableSetOf() }.add(listener)
listenerFlagIds.getOrPut(listener) { mutableSetOf() }.add(flag.id)
}
override fun removeListener(listener: FlagListenable.Listener) {
listenerFlagIds.remove(listener)?.let {
flagIds -> flagIds.forEach {
id -> flagListeners[id]?.remove(listener)
}
}
}
override fun dump(writer: PrintWriter, args: Array<out String>?) {
// no-op
}
private fun flagName(flagId: Int): String {
return knownFlagNames[flagId] ?: "UNKNOWN(id=$flagId)"
}
private fun requireBooleanValue(flagId: Int): Boolean {
return booleanFlags[flagId]
?: error("Flag ${flagName(flagId)} was accessed as boolean but not specified.")
}
private fun requireStringValue(flagId: Int): String {
return stringFlags[flagId]
?: error("Flag ${flagName(flagId)} was accessed as string but not specified.")
}
private fun requireIntValue(flagId: Int): Int {
return intFlags[flagId]
?: error("Flag ${flagName(flagId)} was accessed as int but not specified.")
}
}
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