1 files changed, 273 insertions, 0 deletions
diff --git a/src/types/ReserveTransaction.ts b/src/types/ReserveTransaction.ts
new file mode 100644
index 000000000..2ec859498
--- /dev/null
+++ b/src/types/ReserveTransaction.ts
@@ -0,0 +1,273 @@
+/*
+ This file is part of GNU Taler
+ (C) 2019 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/>
+ */
+
+/**
+ * @author Florian Dold <dold@taler.net>
+ */
+
+/**
+ * Imports.
+ */
+import {
+  codecForString,
+  typecheckedCodec,
+  makeCodecForObject,
+  makeCodecForConstString,
+  makeCodecForUnion,
+} from "../util/codec";
+import { runBlock } from "../util/helpers";
+import {
+  AmountString,
+  Base32String,
+  EddsaSignatureString,
+  TimestampString,
+  EddsaPublicKeyString,
+  CoinPublicKeyString,
+} from "./talerTypes";
+
+export const enum ReserveTransactionType {
+  Withdraw = "WITHDRAW",
+  Deposit = "DEPOSIT",
+  Payback = "PAYBACK",
+  Closing = "CLOSING",
+}
+
+export interface ReserveWithdrawTransaction {
+  type: ReserveTransactionType.Withdraw;
+
+  /**
+   * Amount withdrawn.
+   */
+  amount: AmountString;
+
+  /**
+   * Hash of the denomination public key of the coin.
+   */
+  h_denom_pub: Base32String;
+
+  /**
+   * Hash of the blinded coin to be signed
+   */
+  h_coin_envelope: Base32String;
+
+  /**
+   * Signature of 'TALER_WithdrawRequestPS' created with the reserves's
+   * private key.
+   */
+  reserve_sig: EddsaSignatureString;
+
+  /**
+   * Fee that is charged for withdraw.
+   */
+  withdraw_fee: AmountString;
+}
+
+export interface ReserveDepositTransaction {
+  type: ReserveTransactionType.Deposit;
+
+  /**
+   * Amount withdrawn.
+   */
+  amount: AmountString;
+
+  /**
+   * Sender account payto://-URL
+   */
+  sender_account_url: string;
+
+  /**
+   * Transfer details uniquely identifying the transfer.
+   */
+  wire_reference: string;
+
+  /**
+   * Timestamp of the incoming wire transfer.
+   */
+  timestamp: TimestampString;
+}
+
+export interface ReserveClosingTransaction {
+  type: ReserveTransactionType.Closing;
+
+  /**
+   * Closing balance.
+   */
+  amount: AmountString;
+
+  /**
+   * Closing fee charged by the exchange.
+   */
+  closing_fee: AmountString;
+
+  /**
+   * Wire transfer subject.
+   */
+  wtid: string;
+
+  /**
+   * Hash of the wire account into which the funds were returned to.
+   */
+  h_wire: string;
+
+  /**
+   * This is a signature over a
+   * struct TALER_ReserveCloseConfirmationPS with purpose
+   * TALER_SIGNATURE_EXCHANGE_RESERVE_CLOSED.
+   */
+  exchange_sig: EddsaSignatureString;
+
+  /**
+   * Public key used to create exchange_sig.
+   */
+  exchange_pub: EddsaPublicKeyString;
+
+  /**
+   * Time when the reserve was closed.
+   */
+  timestamp: TimestampString;
+}
+
+export interface ReservePaybackTransaction {
+  type: ReserveTransactionType.Payback;
+
+  /**
+   * Amount paid back.
+   */
+  amount: AmountString;
+
+  /**
+   * Receiver account details.
+   */
+  receiver_account_details: any;
+
+  /**
+   * Wire transfer identifier.
+   */
+  wire_transfer: any;
+
+  /**
+   * This is a signature over
+   * a struct TALER_PaybackConfirmationPS with purpose
+   *  TALER_SIGNATURE_EXCHANGE_CONFIRM_PAYBACK.
+   */
+  exchange_sig: EddsaSignatureString;
+
+  /**
+   * Public key used to create exchange_sig.
+   */
+  exchange_pub: EddsaPublicKeyString;
+
+  /**
+   * Time when the funds were paid back into the reserve.
+   */
+  timestamp: TimestampString;
+
+  /**
+   * Public key of the coin that was paid back.
+   */
+  coin_pub: CoinPublicKeyString;
+}
+
+/**
+ * Format of the exchange's transaction history for a reserve.
+ */
+export type ReserveTransaction =
+  | ReserveWithdrawTransaction
+  | ReserveDepositTransaction
+  | ReserveClosingTransaction
+  | ReservePaybackTransaction;
+
+export const codecForReserveWithdrawTransaction = runBlock(() =>
+  typecheckedCodec<ReserveWithdrawTransaction>(
+    makeCodecForObject<ReserveWithdrawTransaction>()
+      .property("amount", codecForString)
+      .property("h_coin_envelope", codecForString)
+      .property("h_denom_pub", codecForString)
+      .property("reserve_sig", codecForString)
+      .property(
+        "type",
+        makeCodecForConstString(ReserveTransactionType.Withdraw),
+      )
+      .property("withdraw_fee", codecForString)
+      .build("ReserveWithdrawTransaction"),
+  ),
+);
+
+export const codecForReserveDepositTransaction = runBlock(() =>
+  typecheckedCodec<ReserveDepositTransaction>(
+    makeCodecForObject<ReserveDepositTransaction>()
+      .property("amount", codecForString)
+      .property("sender_account_url", codecForString)
+      .property("timestamp", codecForString)
+      .property("wire_reference", codecForString)
+      .property("type", makeCodecForConstString(ReserveTransactionType.Deposit))
+      .build("ReserveDepositTransaction"),
+  ),
+);
+
+export const codecForReserveClosingTransaction = runBlock(() =>
+  typecheckedCodec<ReserveClosingTransaction>(
+    makeCodecForObject<ReserveClosingTransaction>()
+      .property("amount", codecForString)
+      .property("closing_fee", codecForString)
+      .property("exchange_pub", codecForString)
+      .property("exchange_sig", codecForString)
+      .property("h_wire", codecForString)
+      .property("timestamp", codecForString)
+      .property("type", makeCodecForConstString(ReserveTransactionType.Closing))
+      .property("wtid", codecForString)
+      .build("ReserveClosingTransaction"),
+  ),
+);
+
+export const codecForReservePaybackTransaction = runBlock(() =>
+  typecheckedCodec<ReservePaybackTransaction>(
+    makeCodecForObject<ReservePaybackTransaction>()
+      .property("amount", codecForString)
+      .property("coin_pub", codecForString)
+      .property("exchange_pub", codecForString)
+      .property("exchange_sig", codecForString)
+      .property("receiver_account_details", codecForString)
+      .property("timestamp", codecForString)
+      .property("type", makeCodecForConstString(ReserveTransactionType.Payback))
+      .property("wire_transfer", codecForString)
+      .build("ReservePaybackTransaction"),
+  ),
+);
+
+export const codecForReserveTransaction = runBlock(() =>
+  typecheckedCodec<ReserveTransaction>(
+    makeCodecForUnion<ReserveTransaction>()
+      .discriminateOn("type")
+      .alternative(
+        ReserveTransactionType.Withdraw,
+        codecForReserveWithdrawTransaction,
+      )
+      .alternative(
+        ReserveTransactionType.Closing,
+        codecForReserveClosingTransaction,
+      )
+      .alternative(
+        ReserveTransactionType.Payback,
+        codecForReservePaybackTransaction,
+      )
+      .alternative(
+        ReserveTransactionType.Deposit,
+        codecForReserveDepositTransaction,
+      )
+      .build<ReserveTransaction>("ReserveTransaction"),
+  ),
+);