Merge all three apps into one repository

6 files changed, 989 insertions, 0 deletions

diff --git a/wallet/src/main/java/net/taler/wallet/history/HistoryEvent.kt b/wallet/src/main/java/net/taler/wallet/history/HistoryEvent.kt
new file mode 100644
index 0000000..9e5c99d
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/HistoryEvent.kt
@@ -0,0 +1,452 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler 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, or (at your option) any later version.
+ *
+ * GNU Taler 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
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import androidx.annotation.DrawableRes
+import androidx.annotation.LayoutRes
+import androidx.annotation.StringRes
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties
+import com.fasterxml.jackson.annotation.JsonInclude
+import com.fasterxml.jackson.annotation.JsonInclude.Include.NON_EMPTY
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.annotation.JsonSubTypes
+import com.fasterxml.jackson.annotation.JsonSubTypes.Type
+import com.fasterxml.jackson.annotation.JsonTypeInfo
+import com.fasterxml.jackson.annotation.JsonTypeInfo.As.PROPERTY
+import com.fasterxml.jackson.annotation.JsonTypeInfo.Id.NAME
+import com.fasterxml.jackson.annotation.JsonTypeName
+import net.taler.wallet.ParsedAmount.Companion.parseAmount
+import net.taler.wallet.R
+import org.json.JSONObject
+
+enum class ReserveType {
+    /**
+     * Manually created.
+     */
+    @JsonProperty("manual")
+    MANUAL,
+    /**
+     * Withdrawn from a bank that has "tight" Taler integration
+     */
+    @JsonProperty("taler-bank-withdraw")
+    @Suppress("unused")
+    TALER_BANK_WITHDRAW,
+}
+
+@JsonInclude(NON_EMPTY)
+class ReserveCreationDetail(val type: ReserveType, val bankUrl: String?)
+
+enum class RefreshReason {
+    @JsonProperty("manual")
+    @Suppress("unused")
+    MANUAL,
+    @JsonProperty("pay")
+    PAY,
+    @JsonProperty("refund")
+    @Suppress("unused")
+    REFUND,
+    @JsonProperty("abort-pay")
+    @Suppress("unused")
+    ABORT_PAY,
+    @JsonProperty("recoup")
+    @Suppress("unused")
+    RECOUP,
+    @JsonProperty("backup-restored")
+    @Suppress("unused")
+    BACKUP_RESTORED
+}
+
+
+@JsonInclude(NON_EMPTY)
+class Timestamp(
+    @JsonProperty("t_ms")
+    val ms: Long
+)
+
+@JsonInclude(NON_EMPTY)
+class ReserveShortInfo(
+    /**
+     * The exchange that the reserve will be at.
+     */
+    val exchangeBaseUrl: String,
+    /**
+     * Key to query more details
+     */
+    val reservePub: String,
+    /**
+     * Detail about how the reserve has been created.
+     */
+    val reserveCreationDetail: ReserveCreationDetail
+)
+
+typealias History = ArrayList<HistoryEvent>
+
+@JsonTypeInfo(
+    use = NAME,
+    include = PROPERTY,
+    property = "type",
+    defaultImpl = HistoryUnknownEvent::class
+)
+/** missing:
+AuditorComplaintSent = "auditor-complained-sent",
+AuditorComplaintProcessed = "auditor-complaint-processed",
+AuditorTrustAdded = "auditor-trust-added",
+AuditorTrustRemoved = "auditor-trust-removed",
+ExchangeTermsAccepted = "exchange-terms-accepted",
+ExchangePolicyChanged = "exchange-policy-changed",
+ExchangeTrustAdded = "exchange-trust-added",
+ExchangeTrustRemoved = "exchange-trust-removed",
+FundsDepositedToSelf = "funds-deposited-to-self",
+FundsRecouped = "funds-recouped",
+ReserveCreated = "reserve-created",
+ */
+@JsonSubTypes(
+    Type(value = ExchangeAddedEvent::class, name = "exchange-added"),
+    Type(value = ExchangeUpdatedEvent::class, name = "exchange-updated"),
+    Type(value = ReserveBalanceUpdatedEvent::class, name = "reserve-balance-updated"),
+    Type(value = HistoryWithdrawnEvent::class, name = "withdrawn"),
+    Type(value = HistoryOrderAcceptedEvent::class, name = "order-accepted"),
+    Type(value = HistoryOrderRefusedEvent::class, name = "order-refused"),
+    Type(value = HistoryOrderRedirectedEvent::class, name = "order-redirected"),
+    Type(value = HistoryPaymentSentEvent::class, name = "payment-sent"),
+    Type(value = HistoryPaymentAbortedEvent::class, name = "payment-aborted"),
+    Type(value = HistoryTipAcceptedEvent::class, name = "tip-accepted"),
+    Type(value = HistoryTipDeclinedEvent::class, name = "tip-declined"),
+    Type(value = HistoryRefundedEvent::class, name = "refund"),
+    Type(value = HistoryRefreshedEvent::class, name = "refreshed")
+)
+@JsonIgnoreProperties(
+    value = [
+        "eventId"
+    ]
+)
+abstract class HistoryEvent(
+    val timestamp: Timestamp,
+    @get:LayoutRes
+    open val layout: Int = R.layout.history_row,
+    @get:StringRes
+    open val title: Int = 0,
+    @get:DrawableRes
+    open val icon: Int = R.drawable.ic_account_balance,
+    open val showToUser: Boolean = false
+) {
+    open lateinit var json: JSONObject
+}
+
+
+class HistoryUnknownEvent(timestamp: Timestamp) : HistoryEvent(timestamp) {
+    override val title = R.string.history_event_unknown
+}
+
+@JsonTypeName("exchange-added")
+class ExchangeAddedEvent(
+    timestamp: Timestamp,
+    val exchangeBaseUrl: String,
+    val builtIn: Boolean
+) : HistoryEvent(timestamp) {
+    override val title = R.string.history_event_exchange_added
+}
+
+@JsonTypeName("exchange-updated")
+class ExchangeUpdatedEvent(
+    timestamp: Timestamp,
+    val exchangeBaseUrl: String
+) : HistoryEvent(timestamp) {
+    override val title = R.string.history_event_exchange_updated
+}
+
+
+@JsonTypeName("reserve-balance-updated")
+class ReserveBalanceUpdatedEvent(
+    timestamp: Timestamp,
+    val newHistoryTransactions: List<ReserveTransaction>,
+    /**
+     * Condensed information about the reserve.
+     */
+    val reserveShortInfo: ReserveShortInfo,
+    /**
+     * Amount currently left in the reserve.
+     */
+    val amountReserveBalance: String,
+    /**
+     * Amount we expected to be in the reserve at that time,
+     * considering ongoing withdrawals from that reserve.
+     */
+    val amountExpected: String
+) : HistoryEvent(timestamp) {
+    override val title = R.string.history_event_reserve_balance_updated
+}
+
+@JsonTypeName("withdrawn")
+class HistoryWithdrawnEvent(
+    timestamp: Timestamp,
+    /**
+     * Exchange that was withdrawn from.
+     */
+    val exchangeBaseUrl: String,
+    /**
+     * Unique identifier for the withdrawal session, can be used to
+     * query more detailed information from the wallet.
+     */
+    val withdrawSessionId: String,
+    val withdrawalSource: WithdrawalSource,
+    /**
+     * Amount that has been subtracted from the reserve's balance
+     * for this withdrawal.
+     */
+    val amountWithdrawnRaw: String,
+    /**
+     * Amount that actually was added to the wallet's balance.
+     */
+    val amountWithdrawnEffective: String
+) : HistoryEvent(timestamp) {
+    override val layout = R.layout.history_receive
+    override val title = R.string.history_event_withdrawn
+    override val icon = R.drawable.history_withdrawn
+    override val showToUser = true
+}
+
+@JsonTypeName("order-accepted")
+class HistoryOrderAcceptedEvent(
+    timestamp: Timestamp,
+    /**
+     * Condensed info about the order.
+     */
+    val orderShortInfo: OrderShortInfo
+) : HistoryEvent(timestamp) {
+    override val icon = R.drawable.ic_add_circle
+    override val title = R.string.history_event_order_accepted
+}
+
+@JsonTypeName("order-refused")
+class HistoryOrderRefusedEvent(
+    timestamp: Timestamp,
+    /**
+     * Condensed info about the order.
+     */
+    val orderShortInfo: OrderShortInfo
+) : HistoryEvent(timestamp) {
+    override val icon = R.drawable.ic_cancel
+    override val title = R.string.history_event_order_refused
+}
+
+@JsonTypeName("payment-sent")
+class HistoryPaymentSentEvent(
+    timestamp: Timestamp,
+    /**
+     * Condensed info about the order that we already paid for.
+     */
+    val orderShortInfo: OrderShortInfo,
+    /**
+     * Set to true if the payment has been previously sent
+     * to the merchant successfully, possibly with a different session ID.
+     */
+    val replay: Boolean,
+    /**
+     * Number of coins that were involved in the payment.
+     */
+    val numCoins: Int,
+    /**
+     * Amount that was paid, including deposit and wire fees.
+     */
+    val amountPaidWithFees: String,
+    /**
+     * Session ID that the payment was (re-)submitted under.
+     */
+    val sessionId: String?
+) : HistoryEvent(timestamp) {
+    override val layout = R.layout.history_payment
+    override val title = R.string.history_event_payment_sent
+    override val icon = R.drawable.ic_cash_usd_outline
+    override val showToUser = true
+}
+
+@JsonTypeName("payment-aborted")
+class HistoryPaymentAbortedEvent(
+    timestamp: Timestamp,
+    /**
+     * Condensed info about the order that we already paid for.
+     */
+    val orderShortInfo: OrderShortInfo,
+    /**
+     * Amount that was lost due to refund and refreshing fees.
+     */
+    val amountLost: String
+) : HistoryEvent(timestamp) {
+    override val layout = R.layout.history_payment
+    override val title = R.string.history_event_payment_aborted
+    override val icon = R.drawable.history_payment_aborted
+    override val showToUser = true
+}
+
+@JsonTypeName("refreshed")
+class HistoryRefreshedEvent(
+    timestamp: Timestamp,
+    /**
+     * Amount that is now available again because it has
+     * been refreshed.
+     */
+    val amountRefreshedEffective: String,
+    /**
+     * Amount that we spent for refreshing.
+     */
+    val amountRefreshedRaw: String,
+    /**
+     * Why was the refreshing done?
+     */
+    val refreshReason: RefreshReason,
+    val numInputCoins: Int,
+    val numRefreshedInputCoins: Int,
+    val numOutputCoins: Int,
+    /**
+     * Identifier for a refresh group, contains one or
+     * more refresh session IDs.
+     */
+    val refreshGroupId: String
+) : HistoryEvent(timestamp) {
+    override val layout = R.layout.history_payment
+    override val icon = R.drawable.history_refresh
+    override val title = R.string.history_event_refreshed
+    override val showToUser =
+        !(parseAmount(amountRefreshedRaw) - parseAmount(amountRefreshedEffective)).isZero()
+}
+
+@JsonTypeName("order-redirected")
+class HistoryOrderRedirectedEvent(
+    timestamp: Timestamp,
+    /**
+     * Condensed info about the new order that contains a
+     * product (identified by the fulfillment URL) that we've already paid for.
+     */
+    val newOrderShortInfo: OrderShortInfo,
+    /**
+     * Condensed info about the order that we already paid for.
+     */
+    val alreadyPaidOrderShortInfo: OrderShortInfo
+) : HistoryEvent(timestamp) {
+    override val icon = R.drawable.ic_directions
+    override val title = R.string.history_event_order_redirected
+}
+
+@JsonTypeName("tip-accepted")
+class HistoryTipAcceptedEvent(
+    timestamp: Timestamp,
+    /**
+     * Unique identifier for the tip to query more information.
+     */
+    val tipId: String,
+    /**
+     * Raw amount of the tip, without extra fees that apply.
+     */
+    val tipRaw: String
+) : HistoryEvent(timestamp) {
+    override val icon = R.drawable.history_tip_accepted
+    override val title = R.string.history_event_tip_accepted
+    override val layout = R.layout.history_receive
+    override val showToUser = true
+}
+
+@JsonTypeName("tip-declined")
+class HistoryTipDeclinedEvent(
+    timestamp: Timestamp,
+    /**
+     * Unique identifier for the tip to query more information.
+     */
+    val tipId: String,
+    /**
+     * Raw amount of the tip, without extra fees that apply.
+     */
+    val tipAmount: String
+) : HistoryEvent(timestamp) {
+    override val icon = R.drawable.history_tip_declined
+    override val title = R.string.history_event_tip_declined
+    override val layout = R.layout.history_receive
+    override val showToUser = true
+}
+
+@JsonTypeName("refund")
+class HistoryRefundedEvent(
+    timestamp: Timestamp,
+    val orderShortInfo: OrderShortInfo,
+    /**
+     * Unique identifier for this refund.
+     * (Identifies multiple refund permissions that were obtained at once.)
+     */
+    val refundGroupId: String,
+    /**
+     * Part of the refund that couldn't be applied because
+     * the refund permissions were expired.
+     */
+    val amountRefundedInvalid: String,
+    /**
+     * Amount that has been refunded by the merchant.
+     */
+    val amountRefundedRaw: String,
+    /**
+     * Amount will be added to the wallet's balance after fees and refreshing.
+     */
+    val amountRefundedEffective: String
+) : HistoryEvent(timestamp) {
+    override val icon = R.drawable.history_refund
+    override val title = R.string.history_event_refund
+    override val layout = R.layout.history_receive
+    override val showToUser = true
+}
+
+@JsonTypeInfo(
+    use = NAME,
+    include = PROPERTY,
+    property = "type"
+)
+@JsonSubTypes(
+    Type(value = WithdrawalSourceReserve::class, name = "reserve")
+)
+abstract class WithdrawalSource
+
+@Suppress("unused")
+@JsonTypeName("tip")
+class WithdrawalSourceTip(
+    val tipId: String
+) : WithdrawalSource()
+
+@JsonTypeName("reserve")
+class WithdrawalSourceReserve(
+    val reservePub: String
+) : WithdrawalSource()
+
+data class OrderShortInfo(
+    /**
+     * Wallet-internal identifier of the proposal.
+     */
+    val proposalId: String,
+    /**
+     * Order ID, uniquely identifies the order within a merchant instance.
+     */
+    val orderId: String,
+    /**
+     * Base URL of the merchant.
+     */
+    val merchantBaseUrl: String,
+    /**
+     * Amount that must be paid for the contract.
+     */
+    val amount: String,
+    /**
+     * Summary of the proposal, given by the merchant.
+     */
+    val summary: String
+)
diff --git a/wallet/src/main/java/net/taler/wallet/history/HistoryManager.kt b/wallet/src/main/java/net/taler/wallet/history/HistoryManager.kt
new file mode 100644
index 0000000..c350daa
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/HistoryManager.kt
@@ -0,0 +1,71 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler 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, or (at your option) any later version.
+ *
+ * GNU Taler 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
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.asLiveData
+import androidx.lifecycle.switchMap
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.onCompletion
+import kotlinx.coroutines.flow.onStart
+import net.taler.wallet.backend.WalletBackendApi
+
+@Suppress("EXPERIMENTAL_API_USAGE")
+class HistoryManager(
+    private val walletBackendApi: WalletBackendApi,
+    private val mapper: ObjectMapper
+) {
+
+    private val mProgress = MutableLiveData<Boolean>()
+    val progress: LiveData<Boolean> = mProgress
+
+    val showAll = MutableLiveData<Boolean>()
+
+    val history: LiveData<History> = showAll.switchMap { showAll ->
+        loadHistory(showAll)
+            .onStart { mProgress.postValue(true) }
+            .onCompletion { mProgress.postValue(false) }
+            .asLiveData(Dispatchers.IO)
+    }
+
+    private fun loadHistory(showAll: Boolean) = callbackFlow {
+        walletBackendApi.sendRequest("getHistory", null) { isError, result ->
+            if (isError) {
+                // TODO show error message in [WalletHistory] fragment
+                close()
+                return@sendRequest
+            }
+            val history = History()
+            val json = result.getJSONArray("history")
+            for (i in 0 until json.length()) {
+                val event: HistoryEvent = mapper.readValue(json.getString(i))
+                event.json = json.getJSONObject(i)
+                history.add(event)
+            }
+            history.reverse()  // show latest first
+            offer(if (showAll) history else history.filter { it.showToUser } as History)
+            close()
+        }
+        awaitClose()
+    }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/history/JsonDialogFragment.kt b/wallet/src/main/java/net/taler/wallet/history/JsonDialogFragment.kt
new file mode 100644
index 0000000..f51dba9
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/JsonDialogFragment.kt
@@ -0,0 +1,50 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler 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, or (at your option) any later version.
+ *
+ * GNU Taler 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
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.DialogFragment
+import kotlinx.android.synthetic.main.fragment_json.*
+import net.taler.wallet.R
+
+class JsonDialogFragment : DialogFragment() {
+
+    companion object {
+        fun new(json: String): JsonDialogFragment {
+            return JsonDialogFragment().apply {
+                arguments = Bundle().apply { putString("json", json) }
+            }
+        }
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.fragment_json, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        val json = arguments!!.getString("json")
+        jsonView.text = json
+    }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/history/ReserveTransaction.kt b/wallet/src/main/java/net/taler/wallet/history/ReserveTransaction.kt
new file mode 100644
index 0000000..45c539c
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/ReserveTransaction.kt
@@ -0,0 +1,58 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler 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, or (at your option) any later version.
+ *
+ * GNU Taler 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
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.annotation.JsonSubTypes
+import com.fasterxml.jackson.annotation.JsonTypeInfo
+import com.fasterxml.jackson.annotation.JsonTypeInfo.As.PROPERTY
+import com.fasterxml.jackson.annotation.JsonTypeInfo.Id.NAME
+import com.fasterxml.jackson.annotation.JsonTypeName
+
+
+@JsonTypeInfo(
+    use = NAME,
+    include = PROPERTY,
+    property = "type"
+)
+@JsonSubTypes(
+    JsonSubTypes.Type(value = ReserveDepositTransaction::class, name = "DEPOSIT")
+)
+abstract class ReserveTransaction
+
+
+@JsonTypeName("DEPOSIT")
+class ReserveDepositTransaction(
+    /**
+     * Amount withdrawn.
+     */
+    val amount: String,
+    /**
+     * Sender account payto://-URL
+     */
+    @JsonProperty("sender_account_url")
+    val senderAccountUrl: String,
+    /**
+     * Transfer details uniquely identifying the transfer.
+     */
+    @JsonProperty("wire_reference")
+    val wireReference: String,
+    /**
+     * Timestamp of the incoming wire transfer.
+     */
+    val timestamp: Timestamp
+) : ReserveTransaction()
diff --git a/wallet/src/main/java/net/taler/wallet/history/WalletHistoryAdapter.kt b/wallet/src/main/java/net/taler/wallet/history/WalletHistoryAdapter.kt
new file mode 100644
index 0000000..71bdebc
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/WalletHistoryAdapter.kt
@@ -0,0 +1,243 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler 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, or (at your option) any later version.
+ *
+ * GNU Taler 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
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import android.annotation.SuppressLint
+import android.graphics.Paint.STRIKE_THRU_TEXT_FLAG
+import android.text.format.DateUtils.DAY_IN_MILLIS
+import android.text.format.DateUtils.FORMAT_ABBREV_MONTH
+import android.text.format.DateUtils.FORMAT_ABBREV_RELATIVE
+import android.text.format.DateUtils.FORMAT_NO_YEAR
+import android.text.format.DateUtils.FORMAT_SHOW_DATE
+import android.text.format.DateUtils.FORMAT_SHOW_TIME
+import android.text.format.DateUtils.MINUTE_IN_MILLIS
+import android.text.format.DateUtils.formatDateTime
+import android.text.format.DateUtils.getRelativeTimeSpanString
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.annotation.CallSuper
+import androidx.core.net.toUri
+import androidx.recyclerview.widget.RecyclerView.Adapter
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import net.taler.wallet.BuildConfig
+import net.taler.wallet.ParsedAmount
+import net.taler.wallet.ParsedAmount.Companion.parseAmount
+import net.taler.wallet.R
+
+
+internal class WalletHistoryAdapter(
+    private val listener: OnEventClickListener,
+    private var history: History = History()
+) : Adapter<WalletHistoryAdapter.HistoryEventViewHolder>() {
+
+    init {
+        setHasStableIds(false)
+    }
+
+    override fun getItemViewType(position: Int): Int = history[position].layout
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HistoryEventViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(viewType, parent, false)
+        return when (viewType) {
+            R.layout.history_receive -> HistoryReceiveViewHolder(view)
+            R.layout.history_payment -> HistoryPaymentViewHolder(view)
+            else -> GenericHistoryEventViewHolder(view)
+        }
+    }
+
+    override fun getItemCount(): Int = history.size
+
+    override fun onBindViewHolder(holder: HistoryEventViewHolder, position: Int) {
+        val event = history[position]
+        holder.bind(event)
+    }
+
+    fun update(updatedHistory: History) {
+        this.history = updatedHistory
+        this.notifyDataSetChanged()
+    }
+
+    internal abstract inner class HistoryEventViewHolder(protected val v: View) : ViewHolder(v) {
+
+        private val icon: ImageView = v.findViewById(R.id.icon)
+        protected val title: TextView = v.findViewById(R.id.title)
+        private val time: TextView = v.findViewById(R.id.time)
+
+        @CallSuper
+        open fun bind(event: HistoryEvent) {
+            if (BuildConfig.DEBUG) {  // doesn't produce recycling issues, no need to cover all cases
+                v.setOnClickListener { listener.onEventClicked(event) }
+            } else {
+                v.background = null
+            }
+            icon.setImageResource(event.icon)
+            if (event.title == 0) title.text = event::class.java.simpleName
+            else title.setText(event.title)
+            time.text = getRelativeTime(event.timestamp.ms)
+        }
+
+        private fun getRelativeTime(timestamp: Long): CharSequence {
+            val now = System.currentTimeMillis()
+            return if (now - timestamp > DAY_IN_MILLIS * 2) {
+                formatDateTime(
+                    v.context,
+                    timestamp,
+                    FORMAT_SHOW_TIME or FORMAT_SHOW_DATE or FORMAT_ABBREV_MONTH or FORMAT_NO_YEAR
+                )
+            } else {
+                getRelativeTimeSpanString(timestamp, now, MINUTE_IN_MILLIS, FORMAT_ABBREV_RELATIVE)
+            }
+        }
+
+    }
+
+    internal inner class GenericHistoryEventViewHolder(v: View) : HistoryEventViewHolder(v) {
+
+        private val info: TextView = v.findViewById(R.id.info)
+
+        override fun bind(event: HistoryEvent) {
+            super.bind(event)
+            info.text = when (event) {
+                is ExchangeAddedEvent -> event.exchangeBaseUrl
+                is ExchangeUpdatedEvent -> event.exchangeBaseUrl
+                is ReserveBalanceUpdatedEvent -> parseAmount(event.amountReserveBalance).toString()
+                is HistoryPaymentSentEvent -> event.orderShortInfo.summary
+                is HistoryOrderAcceptedEvent -> event.orderShortInfo.summary
+                is HistoryOrderRefusedEvent -> event.orderShortInfo.summary
+                is HistoryOrderRedirectedEvent -> event.newOrderShortInfo.summary
+                else -> ""
+            }
+        }
+
+    }
+
+    internal inner class HistoryReceiveViewHolder(v: View) : HistoryEventViewHolder(v) {
+
+        private val summary: TextView = v.findViewById(R.id.summary)
+        private val amountWithdrawn: TextView = v.findViewById(R.id.amountWithdrawn)
+        private val feeLabel: TextView = v.findViewById(R.id.feeLabel)
+        private val fee: TextView = v.findViewById(R.id.fee)
+
+        override fun bind(event: HistoryEvent) {
+            super.bind(event)
+            when (event) {
+                is HistoryWithdrawnEvent -> bind(event)
+                is HistoryRefundedEvent -> bind(event)
+                is HistoryTipAcceptedEvent -> bind(event)
+                is HistoryTipDeclinedEvent -> bind(event)
+            }
+        }
+
+        private fun bind(event: HistoryWithdrawnEvent) {
+            title.text = getHostname(event.exchangeBaseUrl)
+            summary.setText(event.title)
+
+            val parsedEffective = parseAmount(event.amountWithdrawnEffective)
+            val parsedRaw = parseAmount(event.amountWithdrawnRaw)
+            showAmounts(parsedEffective, parsedRaw)
+        }
+
+        private fun bind(event: HistoryRefundedEvent) {
+            title.text = event.orderShortInfo.summary
+            summary.setText(event.title)
+
+            val parsedEffective = parseAmount(event.amountRefundedEffective)
+            val parsedRaw = parseAmount(event.amountRefundedRaw)
+            showAmounts(parsedEffective, parsedRaw)
+        }
+
+        private fun bind(event: HistoryTipAcceptedEvent) {
+            title.setText(event.title)
+            summary.text = null
+            val amount = parseAmount(event.tipRaw)
+            showAmounts(amount, amount)
+        }
+
+        private fun bind(event: HistoryTipDeclinedEvent) {
+            title.setText(event.title)
+            summary.text = null
+            val amount = parseAmount(event.tipAmount)
+            showAmounts(amount, amount)
+            amountWithdrawn.paintFlags = amountWithdrawn.paintFlags or STRIKE_THRU_TEXT_FLAG
+        }
+
+        private fun showAmounts(effective: ParsedAmount, raw: ParsedAmount) {
+            @SuppressLint("SetTextI18n")
+            amountWithdrawn.text = "+$raw"
+            val calculatedFee = raw - effective
+            if (calculatedFee.isZero()) {
+                fee.visibility = GONE
+                feeLabel.visibility = GONE
+            } else {
+                @SuppressLint("SetTextI18n")
+                fee.text = "-$calculatedFee"
+                fee.visibility = VISIBLE
+                feeLabel.visibility = VISIBLE
+            }
+            amountWithdrawn.paintFlags = fee.paintFlags
+        }
+
+        private fun getHostname(url: String): String {
+            return url.toUri().host!!
+        }
+
+    }
+
+    internal inner class HistoryPaymentViewHolder(v: View) : HistoryEventViewHolder(v) {
+
+        private val summary: TextView = v.findViewById(R.id.summary)
+        private val amountPaidWithFees: TextView = v.findViewById(R.id.amountPaidWithFees)
+
+        override fun bind(event: HistoryEvent) {
+            super.bind(event)
+            summary.setText(event.title)
+            when (event) {
+                is HistoryPaymentSentEvent -> bind(event)
+                is HistoryPaymentAbortedEvent -> bind(event)
+                is HistoryRefreshedEvent -> bind(event)
+            }
+        }
+
+        private fun bind(event: HistoryPaymentSentEvent) {
+            title.text = event.orderShortInfo.summary
+            @SuppressLint("SetTextI18n")
+            amountPaidWithFees.text = "-${parseAmount(event.amountPaidWithFees)}"
+        }
+
+        private fun bind(event: HistoryPaymentAbortedEvent) {
+            title.text = event.orderShortInfo.summary
+            @SuppressLint("SetTextI18n")
+            amountPaidWithFees.text = "-${parseAmount(event.amountLost)}"
+        }
+
+        private fun bind(event: HistoryRefreshedEvent) {
+            title.text = ""
+            val fee =
+                parseAmount(event.amountRefreshedRaw) - parseAmount(event.amountRefreshedEffective)
+            @SuppressLint("SetTextI18n")
+            if (fee.isZero()) amountPaidWithFees.text = null
+            else amountPaidWithFees.text = "-$fee"
+        }
+
+    }
+
+}
diff --git a/wallet/src/main/java/net/taler/wallet/history/WalletHistoryFragment.kt b/wallet/src/main/java/net/taler/wallet/history/WalletHistoryFragment.kt
new file mode 100644
index 0000000..4f8ab82
--- /dev/null
+++ b/wallet/src/main/java/net/taler/wallet/history/WalletHistoryFragment.kt
@@ -0,0 +1,115 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler 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, or (at your option) any later version.
+ *
+ * GNU Taler 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
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.wallet.history
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.Menu
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.LinearLayoutManager.VERTICAL
+import kotlinx.android.synthetic.main.fragment_show_balance.*
+import kotlinx.android.synthetic.main.fragment_show_history.*
+import net.taler.wallet.R
+import net.taler.wallet.WalletViewModel
+
+interface OnEventClickListener {
+    fun onEventClicked(event: HistoryEvent)
+}
+
+class WalletHistoryFragment : Fragment(), OnEventClickListener {
+
+    private val model: WalletViewModel by activityViewModels()
+    private val historyManager by lazy { model.historyManager }
+    private lateinit var showAllItem: MenuItem
+    private var reloadHistoryItem: MenuItem? = null
+    private val historyAdapter = WalletHistoryAdapter(this)
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setHasOptionsMenu(true)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.fragment_show_history, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        historyList.apply {
+            layoutManager = LinearLayoutManager(context)
+            adapter = historyAdapter
+            addItemDecoration(DividerItemDecoration(context, VERTICAL))
+        }
+
+        model.devMode.observe(viewLifecycleOwner, Observer { enabled ->
+            reloadHistoryItem?.isVisible = enabled
+        })
+        historyManager.progress.observe(viewLifecycleOwner, Observer { show ->
+            historyProgressBar.visibility = if (show) VISIBLE else INVISIBLE
+        })
+        historyManager.history.observe(viewLifecycleOwner, Observer { history ->
+            historyEmptyState.visibility = if (history.isEmpty()) VISIBLE else INVISIBLE
+            historyAdapter.update(history)
+        })
+
+        // kicks off initial load, needs to be adapted if showAll state is ever saved
+        if (savedInstanceState == null) historyManager.showAll.value = model.devMode.value
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+        inflater.inflate(R.menu.history, menu)
+        showAllItem = menu.findItem(R.id.show_all_history)
+        showAllItem.isChecked = historyManager.showAll.value == true
+        reloadHistoryItem = menu.findItem(R.id.reload_history).apply {
+            isVisible = model.devMode.value!!
+        }
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        return when (item.itemId) {
+            R.id.show_all_history -> {
+                item.isChecked = !item.isChecked
+                historyManager.showAll.value = item.isChecked
+                true
+            }
+            R.id.reload_history -> {
+                historyManager.showAll.value = showAllItem.isChecked
+                true
+            }
+            else -> super.onOptionsItemSelected(item)
+        }
+    }
+
+    override fun onEventClicked(event: HistoryEvent) {
+        if (model.devMode.value != true) return
+        JsonDialogFragment.new(event.json.toString(4))
+            .show(parentFragmentManager, null)
+    }
+
+}