Adds support for CashuB tokens using CBOR

amethyst/build.gradle

@@ -5,6 +5,7 @@ plugins {
     alias(libs.plugins.jetbrainsKotlinAndroid)
     alias(libs.plugins.googleServices)
     alias(libs.plugins.jetbrainsComposeCompiler)
+    alias(libs.plugins.serialization)
 }
 
 android {
@@ -282,6 +283,9 @@ dependencies {
     // Image compression lib
     implementation libs.zelory.video.compressor
 
+    // Cbor for cashuB format
+    implementation libs.kotlinx.serialization.cbor
+
     testImplementation libs.junit
     testImplementation libs.mockk
 

amethyst/src/androidTest/java/com/vitorpamplona/amethyst/CashuBTest.kt

@@ -0,0 +1,102 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.vitorpamplona.amethyst.service.CashuProcessor
+import com.vitorpamplona.amethyst.service.CashuToken
+import com.vitorpamplona.amethyst.ui.components.GenericLoadable
+import junit.framework.TestCase.assertEquals
+import kotlinx.coroutines.runBlocking
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class CashuBTest {
+    val cashuTokenA = "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"
+    val cashuTokenB1 = "cashuBo2F0gqJhaUgA_9SLj17PgGFwgaNhYQFhc3hAYWNjMTI0MzVlN2I4NDg0YzNjZjE4NTAxNDkyMThhZjkwZjcxNmE1MmJmNGE1ZWQzNDdlNDhlY2MxM2Y3NzM4OGFjWCECRFODGd5IXVW-07KaZCvuWHk3WrnnpiDhHki6SCQh88-iYWlIAK0mjE0fWCZhcIKjYWECYXN4QDEzMjNkM2Q0NzA3YTU4YWQyZTIzYWRhNGU5ZjFmNDlmNWE1YjRhYzdiNzA4ZWIwZDYxZjczOGY0ODMwN2U4ZWVhY1ghAjRWqhENhLSsdHrr2Cw7AFrKUL9Ffr1XN6RBT6w659lNo2FhAWFzeEA1NmJjYmNiYjdjYzY0MDZiM2ZhNWQ1N2QyMTc0ZjRlZmY4YjQ0MDJiMTc2OTI2ZDNhNTdkM2MzZGNiYjU5ZDU3YWNYIQJzEpxXGeWZN5qXSmJjY8MzxWyvwObQGr5G1YCCgHicY2FtdWh0dHA6Ly9sb2NhbGhvc3Q6MzMzOGF1Y3NhdA"
+    val cashuTokenB2 = "cashuBpGFkb01pbmliaXRzIHJ1bGVzIWFteEpodHRwOi8vbGJ1dGxoNWxmZ2dxNXI3eHBpd2hyYWpkbDdzeHB1cGdhZ2F6eGw2NXc0YzVjZzcyd3RvZmFzYWQub25pb246MzMzOGF0gaJhaUgAm7I9OpEuTmFwg6NhYRhAYWNYIQPfWR0mG80XbGnj6DO8q1NIyjHSGGIEkoWTA6H16HTpx2FzeEA3YThkY2Y5YjNlOGEyNDdjZTMzOWU3MzY5ZTliNGExOWYzMWVhY2I2OWQ4YjBjNjVkYWFlYjcyZDFhY2I5YWQzo2FhGCBhY1ghA55SwCFBc46dwnjbkb87Mzo30T2EE9Ws_nemuFneDegGYXN4QDlkODFjMWEyNjE2ODUzYWQ4MDQ5Y2JjZDFjN2MyNDdhZGQ4M2IzNzM4Mjg2MjBiYWMyZmQ3ZjNlNWE1OGFjZWKjYWEEYWNYIQM-yAQQTR2t6pIAmfmGM8Wxy7ajKVLOaUg7TrV8o-EdVWFzeEBmNmViMTI4ZmJlMDM3MTEzZTkzZjM3NjllYTYwMTk1NmY1N2NkZWNhNTYwOGY0NWUzMDhhZDU0ZmQ4YTQxNWVhYXVjc2F0"
+
+    @Test()
+    fun parseCashuA() {
+        runBlocking {
+            val parsed = (CashuProcessor().parse(cashuTokenA) as GenericLoadable.Loaded<List<CashuToken>>).loaded[0]
+
+            assertEquals(cashuTokenA, parsed.token)
+            assertEquals("https://8333.space:3338", parsed.mint)
+            assertEquals(10, parsed.totalAmount)
+
+            assertEquals(2, parsed.proofs[0].amount)
+            assertEquals("407915bc212be61a77e3e6d2aeb4c727980bda51cd06a6afc29e2861768a7837", parsed.proofs[0].secret)
+            assertEquals("009a1f293253e41e", parsed.proofs[0].id)
+            assertEquals("02bc9097997d81afb2cc7346b5e4345a9346bd2a506eb7958598a72f0cf85163ea", parsed.proofs[0].C)
+
+            assertEquals(8, parsed.proofs[1].amount)
+            assertEquals("fe15109314e61d7756b0f8ee0f23a624acaa3f4e042f61433c728c7057b931be", parsed.proofs[1].secret)
+            assertEquals("009a1f293253e41e", parsed.proofs[1].id)
+            assertEquals("029e8e5050b890a7d6c0968db16bc1d5d5fa040ea1de284f6ec69d61299f671059", parsed.proofs[1].C)
+        }
+    }
+
+    @Test()
+    fun parseCashuB() =
+        runBlocking {
+            val parsed = (CashuProcessor().parse(cashuTokenB1) as GenericLoadable.Loaded<List<CashuToken>>).loaded
+
+            assertEquals(cashuTokenB1, parsed[0].token)
+            assertEquals("http://localhost:3338", parsed[0].mint)
+            assertEquals(1, parsed[0].totalAmount)
+            assertEquals(1, parsed[0].proofs[0].amount)
+            assertEquals("acc12435e7b8484c3cf1850149218af90f716a52bf4a5ed347e48ecc13f77388", parsed[0].proofs[0].secret)
+            assertEquals("00ffd48b8f5ecf80", parsed[0].proofs[0].id)
+            assertEquals("0244538319de485d55bed3b29a642bee5879375ab9e7a620e11e48ba482421f3cf", parsed[0].proofs[0].C)
+
+            assertEquals(3, parsed[1].totalAmount)
+            assertEquals(2, parsed[1].proofs[0].amount)
+            assertEquals("1323d3d4707a58ad2e23ada4e9f1f49f5a5b4ac7b708eb0d61f738f48307e8ee", parsed[1].proofs[0].secret)
+            assertEquals("00ad268c4d1f5826", parsed[1].proofs[0].id)
+            assertEquals("023456aa110d84b4ac747aebd82c3b005aca50bf457ebd5737a4414fac3ae7d94d", parsed[1].proofs[0].C)
+
+            assertEquals(1, parsed[1].proofs[1].amount)
+            assertEquals("56bcbcbb7cc6406b3fa5d57d2174f4eff8b4402b176926d3a57d3c3dcbb59d57", parsed[1].proofs[1].secret)
+            assertEquals("00ad268c4d1f5826", parsed[1].proofs[1].id)
+            assertEquals("0273129c5719e599379a974a626363c333c56cafc0e6d01abe46d5808280789c63", parsed[1].proofs[1].C)
+        }
+
+    @Test()
+    fun parseCashuB2() =
+        runBlocking {
+            val parsed = (CashuProcessor().parse(cashuTokenB2) as GenericLoadable.Loaded<List<CashuToken>>).loaded
+
+            assertEquals(cashuTokenB2, parsed[0].token)
+            assertEquals("http://lbutlh5lfggq5r7xpiwhrajdl7sxpupgagazxl65w4c5cg72wtofasad.onion:3338", parsed[0].mint)
+            assertEquals(100, parsed[0].totalAmount)
+            assertEquals(64, parsed[0].proofs[0].amount)
+            assertEquals("7a8dcf9b3e8a247ce339e7369e9b4a19f31eacb69d8b0c65daaeb72d1acb9ad3", parsed[0].proofs[0].secret)
+            assertEquals("009bb23d3a912e4e", parsed[0].proofs[0].id)
+            assertEquals("03df591d261bcd176c69e3e833bcab5348ca31d218620492859303a1f5e874e9c7", parsed[0].proofs[0].C)
+
+            assertEquals(32, parsed[0].proofs[1].amount)
+            assertEquals("9d81c1a2616853ad8049cbcd1c7c247add83b373828620bac2fd7f3e5a58aceb", parsed[0].proofs[1].secret)
+            assertEquals("009bb23d3a912e4e", parsed[0].proofs[1].id)
+            assertEquals("039e52c02141738e9dc278db91bf3b333a37d13d8413d5acfe77a6b859de0de806", parsed[0].proofs[1].C)
+        }
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/service/CashuProcessor.kt

@@ -23,14 +23,20 @@ package com.vitorpamplona.amethyst.service
 import android.content.Context
 import android.util.LruCache
 import androidx.compose.runtime.Immutable
-import com.fasterxml.jackson.databind.JsonNode
 import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.service.lnurl.LightningAddressResolver
 import com.vitorpamplona.amethyst.ui.components.GenericLoadable
 import com.vitorpamplona.amethyst.ui.stringRes
 import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.encoders.toHexKey
 import com.vitorpamplona.quartz.events.Event
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.cbor.ByteString
+import kotlinx.serialization.cbor.Cbor
+import kotlinx.serialization.decodeFromByteArray
 import okhttp3.MediaType.Companion.toMediaType
 import okhttp3.Request
 import okhttp3.RequestBody.Companion.toRequestBody
@@ -42,16 +48,26 @@ data class CashuToken(
     val token: String,
     val mint: String,
     val totalAmount: Long,
-    val proofs: JsonNode,
+    val proofs: List<Proof>,
+)
+
+@Serializable
+@Immutable
+class Proof(
+    val amount: Int,
+    val id: String,
+    val secret: String,
+    val C: String,
 )
 
 object CachedCashuProcessor {
-    val cashuCache = LruCache<String, GenericLoadable<CashuToken>>(20)
+    val cashuCache = LruCache<String, GenericLoadable<List<CashuToken>>>(20)
 
-    fun cached(token: String): GenericLoadable<CashuToken> = cashuCache[token] ?: GenericLoadable.Loading()
+    fun cached(token: String): GenericLoadable<List<CashuToken>> = cashuCache[token] ?: GenericLoadable.Loading()
 
-    fun parse(token: String): GenericLoadable<CashuToken> {
+    fun parse(token: String): GenericLoadable<List<CashuToken>> {
         if (cashuCache[token] !is GenericLoadable.Loaded) {
+            checkNotInMainThread()
             val newCachuData = CashuProcessor().parse(token)
 
             cashuCache.put(token, newCachuData)
@@ -62,25 +78,138 @@ object CachedCashuProcessor {
 }
 
 class CashuProcessor {
-    fun parse(cashuToken: String): GenericLoadable<CashuToken> {
+    @Serializable
+    class V3Token(
+        val unit: String?, // unit
+        val memo: String?, // memo
+        val token: List<V3T>?,
+    )
+
+    @Serializable
+    class V3T(
+        val mint: String,
+        val proofs: List<Proof>,
+    )
+
+    fun parse(cashuToken: String): GenericLoadable<List<CashuToken>> {
+        checkNotInMainThread()
+
+        if (cashuToken.startsWith("cashuA")) {
+            return parseCashuA(cashuToken)
+        }
+
+        if (cashuToken.startsWith("cashuB")) {
+            return parseCashuB(cashuToken)
+        }
+
+        return GenericLoadable.Error("Could not parse this cashu token")
+    }
+
+    fun parseCashuA(cashuToken: String): GenericLoadable<List<CashuToken>> {
         checkNotInMainThread()
 
         try {
             val base64token = cashuToken.replace("cashuA", "")
-            val cashu = jacksonObjectMapper().readTree(String(Base64.getDecoder().decode(base64token)))
-            val token = cashu.get("token").get(0)
-            val proofs = token.get("proofs")
-            val mint = token.get("mint").asText()
+            val cashu = jacksonObjectMapper().readValue<V3Token>(String(Base64.getDecoder().decode(base64token)))
 
-            var totalAmount = 0L
-            for (proof in proofs) {
-                totalAmount += proof.get("amount").asLong()
+            if (cashu.token == null) {
+                return GenericLoadable.Error("No token found")
             }
 
-            return GenericLoadable.Loaded(CashuToken(cashuToken, mint, totalAmount, proofs))
+            val converted =
+                cashu.token.map { token ->
+                    val proofs = token.proofs
+                    val mint = token.mint
+
+                    var totalAmount = 0L
+                    for (proof in proofs) {
+                        totalAmount += proof.amount
+                    }
+
+                    CashuToken(cashuToken, mint, totalAmount, proofs)
+                }
+
+            return GenericLoadable.Loaded(converted)
         } catch (e: Exception) {
             if (e is CancellationException) throw e
-            return GenericLoadable.Error<CashuToken>("Could not parse this cashu token")
+            return GenericLoadable.Error<List<CashuToken>>("Could not parse this cashu token")
+        }
+    }
+
+    @Serializable
+    class V4Token(
+        val m: String, // mint
+        val u: String, // unit
+        val d: String? = null, // memo
+        val t: Array<V4T>?,
+    )
+
+    @Serializable
+    class V4T(
+        @ByteString
+        val i: ByteArray, // identifier
+        val p: Array<V4Proof>,
+    )
+
+    @Serializable
+    class V4Proof(
+        val a: Int, // amount
+        val s: String, // secret
+        @ByteString
+        val c: ByteArray, // signature
+        val d: V4DleqProof? = null, // no idea what this is
+        val w: String? = null, // witness
+    )
+
+    @Serializable
+    class V4DleqProof(
+        @ByteString
+        val e: ByteArray,
+        @ByteString
+        val s: ByteArray,
+        @ByteString
+        val r: ByteArray,
+    )
+
+    @OptIn(ExperimentalSerializationApi::class)
+    fun parseCashuB(cashuToken: String): GenericLoadable<List<CashuToken>> {
+        checkNotInMainThread()
+
+        try {
+            val base64token = cashuToken.replace("cashuB", "")
+
+            val parser = Cbor { ignoreUnknownKeys = true }
+
+            val v4Token = parser.decodeFromByteArray<V4Token>(Base64.getUrlDecoder().decode(base64token))
+
+            val v4proofs = v4Token.t ?: return GenericLoadable.Error("No token found")
+
+            val converted =
+                v4proofs.map { id ->
+                    val proofs =
+                        id.p.map {
+                            Proof(
+                                it.a,
+                                id.i.toHexKey(),
+                                it.s,
+                                it.c.toHexKey(),
+                            )
+                        }
+                    val mint = v4Token.m
+
+                    var totalAmount = 0L
+                    for (proof in proofs) {
+                        totalAmount += proof.amount
+                    }
+
+                    CashuToken(cashuToken, mint, totalAmount, proofs)
+                }
+
+            return GenericLoadable.Loaded(converted)
+        } catch (e: Exception) {
+            e.printStackTrace()
+            if (e is CancellationException) throw e
+            return GenericLoadable.Error("Could not parse this cashu token")
         }
     }
 
@@ -209,7 +338,21 @@ class CashuProcessor {
             val factory = Event.mapper.nodeFactory
 
             val jsonObject = factory.objectNode()
-            jsonObject.put("proofs", token.proofs)
+
+            jsonObject.replace(
+                "proofs",
+                factory.arrayNode(token.proofs.size).apply {
+                    token.proofs.forEach {
+                        addObject().apply {
+                            put("amount", it.amount)
+                            put("id", it.id)
+                            put("secret", it.secret)
+                            put("C", it.C)
+                        }
+                    }
+                },
+            )
+
             jsonObject.put("pr", invoice)
 
             val mediaType = "application/json; charset=utf-8".toMediaType()

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/CashuRedeem.kt

@@ -23,7 +23,6 @@ package com.vitorpamplona.amethyst.ui.components
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
-import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
@@ -31,11 +30,8 @@ import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.material3.Button
-import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Card
 import androidx.compose.material3.FilledTonalButton
-import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.LocalTextStyle
 import androidx.compose.material3.MaterialTheme
@@ -53,14 +49,12 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.AnnotatedString
-import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextDirection
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.core.content.ContextCompat.startActivity
 import androidx.lifecycle.viewmodel.compose.viewModel
-import com.fasterxml.jackson.databind.node.TextNode
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.hashtags.Cashu
 import com.vitorpamplona.amethyst.commons.hashtags.CustomHashTagIcons
@@ -69,7 +63,6 @@ import com.vitorpamplona.amethyst.service.CachedCashuProcessor
 import com.vitorpamplona.amethyst.service.CashuToken
 import com.vitorpamplona.amethyst.ui.actions.CrossfadeIfEnabled
 import com.vitorpamplona.amethyst.ui.actions.LoadingAnimation
-import com.vitorpamplona.amethyst.ui.note.CashuIcon
 import com.vitorpamplona.amethyst.ui.note.CopyIcon
 import com.vitorpamplona.amethyst.ui.note.OpenInNewIcon
 import com.vitorpamplona.amethyst.ui.note.ZapIcon
@@ -77,14 +70,11 @@ import com.vitorpamplona.amethyst.ui.screen.SharedPreferencesViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.stringRes
 import com.vitorpamplona.amethyst.ui.theme.AmethystTheme
-import com.vitorpamplona.amethyst.ui.theme.DividerThickness
-import com.vitorpamplona.amethyst.ui.theme.DoubleHorzSpacer
 import com.vitorpamplona.amethyst.ui.theme.QuoteBorder
 import com.vitorpamplona.amethyst.ui.theme.Size18Modifier
 import com.vitorpamplona.amethyst.ui.theme.Size20Modifier
 import com.vitorpamplona.amethyst.ui.theme.SmallishBorder
 import com.vitorpamplona.amethyst.ui.theme.StdHorzSpacer
-import com.vitorpamplona.amethyst.ui.theme.subtleBorder
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
@@ -108,8 +98,8 @@ fun CashuPreview(
 
     CrossfadeIfEnabled(targetState = cashuData, label = "CashuPreview", accountViewModel = accountViewModel) {
         when (it) {
-            is GenericLoadable.Loaded<CashuToken> -> CashuPreview(it.loaded, accountViewModel)
-            is GenericLoadable.Error<CashuToken> ->
+            is GenericLoadable.Loaded<List<CashuToken>> -> CashuPreview(it.loaded, accountViewModel)
+            is GenericLoadable.Error<List<CashuToken>> ->
                 Text(
                     text = "$cashutoken ",
                     style = LocalTextStyle.current.copy(textDirection = TextDirection.Content),
@@ -121,10 +111,12 @@ fun CashuPreview(
 
 @Composable
 fun CashuPreview(
-    token: CashuToken,
+    tokens: List<CashuToken>,
     accountViewModel: AccountViewModel,
 ) {
-    CashuPreviewNew(token, accountViewModel::meltCashu, accountViewModel::toast)
+    tokens.forEach {
+        CashuPreviewNew(it, accountViewModel::meltCashu, accountViewModel::toast)
+    }
 }
 
 @Composable
@@ -137,14 +129,8 @@ fun CashuPreviewPreview() {
 
     AmethystTheme(sharedPrefsViewModel = sharedPreferencesViewModel) {
         Column {
-            CashuPreview(
-                token = CashuToken("token", "mint", 32400, TextNode("")),
-                melt = { token, context, onDone -> },
-                toast = { title, message -> },
-            )
-
             CashuPreviewNew(
-                token = CashuToken("token", "mint", 32400, TextNode("")),
+                token = CashuToken("token", "mint", 32400, listOf()),
                 melt = { token, context, onDone -> },
                 toast = { title, message -> },
             )
@@ -152,148 +138,6 @@ fun CashuPreviewPreview() {
     }
 }
 
-@Composable
-fun CashuPreview(
-    token: CashuToken,
-    melt: (CashuToken, Context, (String, String) -> Unit) -> Unit,
-    toast: (String, String) -> Unit,
-) {
-    val context = LocalContext.current
-    val clipboardManager = LocalClipboardManager.current
-
-    Column(
-        modifier =
-            Modifier
-                .fillMaxWidth()
-                .padding(start = 20.dp, end = 20.dp, top = 10.dp, bottom = 10.dp)
-                .clip(shape = QuoteBorder)
-                .border(1.dp, MaterialTheme.colorScheme.subtleBorder, QuoteBorder),
-    ) {
-        Column(
-            modifier =
-                Modifier
-                    .fillMaxWidth()
-                    .padding(20.dp),
-        ) {
-            Row(
-                verticalAlignment = Alignment.CenterVertically,
-                modifier =
-                    Modifier
-                        .fillMaxWidth()
-                        .padding(bottom = 10.dp),
-            ) {
-                Icon(
-                    imageVector = CustomHashTagIcons.Cashu,
-                    null,
-                    modifier = Size20Modifier,
-                    tint = Color.Unspecified,
-                )
-
-                Text(
-                    text = stringRes(R.string.cashu),
-                    fontSize = 20.sp,
-                    fontWeight = FontWeight.W500,
-                    modifier = Modifier.padding(start = 10.dp),
-                )
-            }
-
-            HorizontalDivider(thickness = DividerThickness)
-
-            Text(
-                text = "${token.totalAmount} ${stringRes(id = R.string.sats)}",
-                fontSize = 25.sp,
-                fontWeight = FontWeight.W500,
-                modifier =
-                    Modifier
-                        .fillMaxWidth()
-                        .padding(vertical = 10.dp),
-            )
-
-            Row(
-                modifier =
-                    Modifier
-                        .padding(top = 5.dp)
-                        .fillMaxWidth(),
-            ) {
-                var isRedeeming by remember { mutableStateOf(false) }
-
-                Button(
-                    onClick = {
-                        isRedeeming = true
-                        melt(token, context) { title, message ->
-                            toast(title, message)
-                            isRedeeming = false
-                        }
-                    },
-                    shape = QuoteBorder,
-                    colors =
-                        ButtonDefaults.buttonColors(
-                            containerColor = MaterialTheme.colorScheme.primary,
-                        ),
-                ) {
-                    if (isRedeeming) {
-                        LoadingAnimation()
-                    } else {
-                        ZapIcon(Size20Modifier, tint = Color.White)
-                    }
-                    Spacer(DoubleHorzSpacer)
-
-                    Text(
-                        stringRes(id = R.string.cashu_redeem_to_zap),
-                        color = Color.White,
-                        fontSize = 16.sp,
-                    )
-                }
-            }
-
-            Spacer(modifier = StdHorzSpacer)
-            Button(
-                onClick = {
-                    try {
-                        val intent = Intent(Intent.ACTION_VIEW, Uri.parse("cashu://${token.token}"))
-                        intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
-
-                        startActivity(context, intent, null)
-                    } catch (e: Exception) {
-                        if (e is CancellationException) throw e
-                        toast(stringRes(context, R.string.cashu), stringRes(context, R.string.cashu_no_wallet_found))
-                    }
-                },
-                shape = QuoteBorder,
-                colors =
-                    ButtonDefaults.buttonColors(
-                        containerColor = MaterialTheme.colorScheme.primary,
-                    ),
-            ) {
-                CashuIcon(Size20Modifier)
-                Spacer(DoubleHorzSpacer)
-                Text(
-                    stringRes(id = R.string.cashu_redeem_to_cashu),
-                    color = Color.White,
-                    fontSize = 16.sp,
-                )
-            }
-            Spacer(modifier = StdHorzSpacer)
-            Button(
-                onClick = {
-                    // Copying the token to clipboard
-                    clipboardManager.setText(AnnotatedString(token.token))
-                },
-                shape = QuoteBorder,
-                colors =
-                    ButtonDefaults.buttonColors(
-                        containerColor = MaterialTheme.colorScheme.primary,
-                    ),
-            ) {
-                CopyIcon(Size20Modifier, Color.White)
-                Spacer(DoubleHorzSpacer)
-                Text(stringRes(id = R.string.cashu_copy_token), color = Color.White, fontSize = 16.sp)
-            }
-            Spacer(modifier = StdHorzSpacer)
-        }
-    }
-}
-
 @Composable
 fun CashuPreviewNew(
     token: CashuToken,

commons/src/main/java/com/vitorpamplona/amethyst/commons/richtext/RichTextParser.kt

@@ -235,7 +235,7 @@ class RichTextParser {
 
         if (word.startsWith("lnurl", true)) return WithdrawSegment(word)
 
-        if (word.startsWith("cashuA", true)) return CashuSegment(word)
+        if (word.startsWith("cashuA", true) || word.startsWith("cashuB", true)) return CashuSegment(word)
 
         if (word.startsWith("#")) return parseHash(word, tags)
 

gradle/libs.versions.toml

@@ -25,6 +25,8 @@ jna = "5.14.0"
 junit = "4.13.2"
 kotlin = "2.0.0"
 kotlinxCollectionsImmutable = "0.3.7"
+kotlinxSerialization = "1.7.1"
+kotlinxSerializationPlugin = "2.0.0"
 languageId = "17.0.5"
 lazysodiumAndroid = "5.1.0"
 lifecycleRuntimeKtx = "2.8.4"
@@ -98,6 +100,7 @@ jackson-module-kotlin = { group = "com.fasterxml.jackson.module", name = "jackso
 jna = { group = "net.java.dev.jna", name = "jna", version.ref = "jna" }
 junit = { group = "junit", name = "junit", version.ref = "junit" }
 kotlinx-collections-immutable = { group = "org.jetbrains.kotlinx", name = "kotlinx-collections-immutable", version.ref = "kotlinxCollectionsImmutable" }
+kotlinx-serialization-cbor = { module = "org.jetbrains.kotlinx:kotlinx-serialization-cbor", version.ref = "kotlinxSerialization" }
 lazysodium-android = { group = "com.goterl", name = "lazysodium-android", version.ref = "lazysodiumAndroid" }
 markdown-commonmark = { group = "com.github.vitorpamplona.compose-richtext", name = "richtext-commonmark", version.ref = "markdown" }
 markdown-ui = { group = "com.github.vitorpamplona.compose-richtext", name = "richtext-ui", version.ref = "markdown" }
@@ -126,4 +129,5 @@ diffplugSpotless = { id = "com.diffplug.spotless", version.ref = "spotless" }
 googleServices = { id = "com.google.gms.google-services", version.ref = "gms" }
 jetbrainsKotlinAndroid = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
 jetbrainsKotlinJvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
-jetbrainsComposeCompiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+jetbrainsComposeCompiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+serialization = { id = 'org.jetbrains.kotlin.plugin.serialization', version.ref = 'kotlinxSerializationPlugin' }