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// Copyright 2023 Google LLC
//
// 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
//
// https://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.github.google.bumble.btbench
import android.content.SharedPreferences
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableFloatStateOf
import androidx.compose.runtime.mutableIntStateOf
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.setValue
import androidx.lifecycle.ViewModel
import java.util.UUID
val DEFAULT_RFCOMM_UUID: UUID = UUID.fromString("E6D55659-C8B4-4B85-96BB-B1143AF6D3AE")
const val DEFAULT_PEER_BLUETOOTH_ADDRESS = "AA:BB:CC:DD:EE:FF"
const val DEFAULT_SENDER_PACKET_COUNT = 100
const val DEFAULT_SENDER_PACKET_SIZE = 1024
const val DEFAULT_PSM = 128
class AppViewModel : ViewModel() {
private var preferences: SharedPreferences? = null
var peerBluetoothAddress by mutableStateOf(DEFAULT_PEER_BLUETOOTH_ADDRESS)
var l2capPsm by mutableIntStateOf(DEFAULT_PSM)
var use2mPhy by mutableStateOf(true)
var mtu by mutableIntStateOf(0)
var rxPhy by mutableIntStateOf(0)
var txPhy by mutableIntStateOf(0)
var senderPacketCountSlider by mutableFloatStateOf(0.0F)
var senderPacketSizeSlider by mutableFloatStateOf(0.0F)
var senderPacketCount by mutableIntStateOf(DEFAULT_SENDER_PACKET_COUNT)
var senderPacketSize by mutableIntStateOf(DEFAULT_SENDER_PACKET_SIZE)
var packetsSent by mutableIntStateOf(0)
var packetsReceived by mutableIntStateOf(0)
var throughput by mutableIntStateOf(0)
var running by mutableStateOf(false)
var aborter: (() -> Unit)? = null
fun loadPreferences(preferences: SharedPreferences) {
this.preferences = preferences
val savedPeerBluetoothAddress = preferences.getString(PEER_BLUETOOTH_ADDRESS_PREF_KEY, null)
if (savedPeerBluetoothAddress != null) {
peerBluetoothAddress = savedPeerBluetoothAddress
}
val savedSenderPacketCount = preferences.getInt(SENDER_PACKET_COUNT_PREF_KEY, 0)
if (savedSenderPacketCount != 0) {
senderPacketCount = savedSenderPacketCount
}
updateSenderPacketCountSlider()
val savedSenderPacketSize = preferences.getInt(SENDER_PACKET_SIZE_PREF_KEY, 0)
if (savedSenderPacketSize != 0) {
senderPacketSize = savedSenderPacketSize
}
updateSenderPacketSizeSlider()
}
fun updatePeerBluetoothAddress(peerBluetoothAddress: String) {
val address = peerBluetoothAddress.uppercase()
this.peerBluetoothAddress = address
// Save the address to the preferences
with(preferences!!.edit()) {
putString(PEER_BLUETOOTH_ADDRESS_PREF_KEY, address)
apply()
}
}
fun updateSenderPacketCountSlider() {
senderPacketCountSlider = if (senderPacketCount <= 10) {
0.0F
} else if (senderPacketCount <= 50) {
0.2F
} else if (senderPacketCount <= 100) {
0.4F
} else if (senderPacketCount <= 500) {
0.6F
} else if (senderPacketCount <= 1000) {
0.8F
} else {
1.0F
}
with(preferences!!.edit()) {
putInt(SENDER_PACKET_COUNT_PREF_KEY, senderPacketCount)
apply()
}
}
fun updateSenderPacketCount() {
senderPacketCount = if (senderPacketCountSlider < 0.1F) {
10
} else if (senderPacketCountSlider < 0.3F) {
50
} else if (senderPacketCountSlider < 0.5F) {
100
} else if (senderPacketCountSlider < 0.7F) {
500
} else if (senderPacketCountSlider < 0.9F) {
1000
} else {
10000
}
with(preferences!!.edit()) {
putInt(SENDER_PACKET_COUNT_PREF_KEY, senderPacketCount)
apply()
}
}
fun updateSenderPacketSizeSlider() {
senderPacketSizeSlider = if (senderPacketSize <= 16) {
0.0F
} else if (senderPacketSize <= 256) {
0.02F
} else if (senderPacketSize <= 512) {
0.4F
} else if (senderPacketSize <= 1024) {
0.6F
} else if (senderPacketSize <= 2048) {
0.8F
} else {
1.0F
}
with(preferences!!.edit()) {
putInt(SENDER_PACKET_SIZE_PREF_KEY, senderPacketSize)
apply()
}
}
fun updateSenderPacketSize() {
senderPacketSize = if (senderPacketSizeSlider < 0.1F) {
16
} else if (senderPacketSizeSlider < 0.3F) {
256
} else if (senderPacketSizeSlider < 0.5F) {
512
} else if (senderPacketSizeSlider < 0.7F) {
1024
} else if (senderPacketSizeSlider < 0.9F) {
2048
} else {
4096
}
with(preferences!!.edit()) {
putInt(SENDER_PACKET_SIZE_PREF_KEY, senderPacketSize)
apply()
}
}
fun abort() {
aborter?.let { it() }
}
}
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