permissionlesstech/bitchat-android
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Nip13 pow (#357)

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* add pow

* animation

* matrix style

* animation better

* improve animation

* improve animation

* works

* fix jump

* difficulty indicator

* 10 is default

* animation runs forever

* pow in message timestamp

* pow works

* default on

* adjust animation

* no printing
This commit is contained in:
callebtc
2025-08-31 13:23:22 +02:00
committed by GitHub
parent 5b62118336
commit b62b15a21f
13 changed files with 1182 additions and 108 deletions
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app/src/main/java/com/bitchat/android/ui/AboutSheet.kt
+125
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@@ -7,6 +7,7 @@ import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Bluetooth
import androidx.compose.material.icons.filled.Lock
import androidx.compose.material.icons.filled.Public
import androidx.compose.material.icons.filled.Security
import androidx.compose.material.icons.filled.Warning
import androidx.compose.material3.*
import androidx.compose.runtime.*
@@ -20,6 +21,8 @@ import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.BaselineShift
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.bitchat.android.nostr.NostrProofOfWork
import com.bitchat.android.nostr.PoWPreferenceManager
/**
* About Sheet for bitchat app information
@@ -168,6 +171,128 @@ fun AboutSheet(
}
}
// Proof of Work section
item {
val context = LocalContext.current
// Initialize PoW preferences if not already done
LaunchedEffect(Unit) {
PoWPreferenceManager.init(context)
}
val powEnabled by PoWPreferenceManager.powEnabled.collectAsState()
val powDifficulty by PoWPreferenceManager.powDifficulty.collectAsState()
Column(
modifier = Modifier.fillMaxWidth(),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
Text(
text = "proof of work",
fontSize = 12.sp,
fontFamily = FontFamily.Monospace,
fontWeight = FontWeight.Medium,
color = colorScheme.onSurface.copy(alpha = 0.8f)
)
Row(
horizontalArrangement = Arrangement.spacedBy(8.dp),
verticalAlignment = Alignment.CenterVertically
) {
FilterChip(
selected = !powEnabled,
onClick = { PoWPreferenceManager.setPowEnabled(false) },
label = { Text("pow off", fontFamily = FontFamily.Monospace) }
)
FilterChip(
selected = powEnabled,
onClick = { PoWPreferenceManager.setPowEnabled(true) },
label = {
Row(
horizontalArrangement = Arrangement.spacedBy(6.dp),
verticalAlignment = Alignment.CenterVertically
) {
Text("pow on", fontFamily = FontFamily.Monospace)
// Show current difficulty
if (powEnabled) {
Surface(
color = if (isDark) Color(0xFF32D74B) else Color(0xFF248A3D),
shape = RoundedCornerShape(50)
) { Box(Modifier.size(8.dp)) }
}
}
}
)
}
Text(
text = "add proof of work to geohash messages for spam deterrence.",
fontSize = 10.sp,
fontFamily = FontFamily.Monospace,
color = colorScheme.onSurface.copy(alpha = 0.6f)
)
// Show difficulty slider when enabled
if (powEnabled) {
Column(
modifier = Modifier.fillMaxWidth(),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
Text(
text = "difficulty: $powDifficulty bits (~${NostrProofOfWork.estimateMiningTime(powDifficulty)})",
fontSize = 11.sp,
fontFamily = FontFamily.Monospace,
color = colorScheme.onSurface.copy(alpha = 0.7f)
)
Slider(
value = powDifficulty.toFloat(),
onValueChange = { PoWPreferenceManager.setPowDifficulty(it.toInt()) },
valueRange = 0f..20f,
steps = 21, // 20 discrete values (0-20)
colors = SliderDefaults.colors(
thumbColor = if (isDark) Color(0xFF32D74B) else Color(0xFF248A3D),
activeTrackColor = if (isDark) Color(0xFF32D74B) else Color(0xFF248A3D)
)
)
// Show difficulty description
Surface(
modifier = Modifier.fillMaxWidth(),
color = colorScheme.surfaceVariant.copy(alpha = 0.25f),
shape = RoundedCornerShape(8.dp)
) {
Column(
modifier = Modifier.padding(12.dp),
verticalArrangement = Arrangement.spacedBy(4.dp)
) {
Text(
text = "difficulty $powDifficulty requires ~${NostrProofOfWork.estimateWork(powDifficulty)} hash attempts",
fontSize = 10.sp,
fontFamily = FontFamily.Monospace,
color = colorScheme.onSurface.copy(alpha = 0.7f)
)
Text(
text = when {
powDifficulty == 0 -> "no proof of work required"
powDifficulty <= 8 -> "very low - minimal spam protection"
powDifficulty <= 12 -> "low - basic spam protection"
powDifficulty <= 16 -> "medium - good spam protection"
powDifficulty <= 20 -> "high - strong spam protection"
powDifficulty <= 24 -> "very high - may cause delays"
else -> "extreme - significant computation required"
},
fontSize = 10.sp,
fontFamily = FontFamily.Monospace,
color = colorScheme.onSurface.copy(alpha = 0.6f)
)
}
}
}
}
}
}
// Network (Tor) section
item {
val ctx = LocalContext.current