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feat: prepare denoms for send
1 parent eec662a commit e302ccb

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3 files changed

+255
-45
lines changed

3 files changed

+255
-45
lines changed

‎public/dashwallet.js‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,79 @@
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var DashWallet = ('object' === typeof module && exports) || {};
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(function (window, DashWallet) {
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'use strict';
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let DashTx = window.DashTx;
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/**
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* @template {Pick<CoreUtxo, "satoshis">} T
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* @param {Array<T>} utxos
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* @param {Number} output - including fee estimate
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* @return {Array<T>}
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*/
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DashWallet.selectOptimalUtxos = function (utxos, satsOut) {
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let balance = DashTx.sum(utxos);
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let fees = DashTx.appraise({
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//@ts-ignore
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inputs: [{}],
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outputs: [{}],
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});
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let fullSats = satsOut + fees.min;
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if (balance < fullSats) {
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return [];
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}
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// from largest to smallest
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utxos.sort(function (a, b) {
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return b.satoshis - a.satoshis;
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});
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/** @type Array<T> */
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let included = [];
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let total = 0;
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// try to get just one
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utxos.every(function (utxo) {
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if (utxo.satoshis > fullSats) {
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included[0] = utxo;
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total = utxo.satoshis;
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return true;
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}
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return false;
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});
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if (total) {
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return included;
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}
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// try to use as few coins as possible
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utxos.some(function (utxo, i) {
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included.push(utxo);
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total += utxo.satoshis;
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if (total >= fullSats) {
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return true;
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}
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// it quickly becomes astronomically unlikely to hit the one
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// exact possibility that least to paying the absolute minimum,
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// but remains about 75% likely to hit any of the mid value
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// possibilities
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if (i < 2) {
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// 1 input 25% chance of minimum (needs ~2 tries)
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// 2 inputs 6.25% chance of minimum (needs ~8 tries)
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fullSats = fullSats + DashTx.MIN_INPUT_SIZE;
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return false;
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}
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// but by 3 inputs... 1.56% chance of minimum (needs ~32 tries)
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// by 10 inputs... 0.00953674316% chance (needs ~524288 tries)
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fullSats = fullSats + DashTx.MIN_INPUT_SIZE + 1;
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});
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return included;
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};
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//@ts-ignore
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window.DashWallet = DashWallet;
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})(globalThis.window || {}, DashWallet);
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if ('object' === typeof module) {
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module.exports = DashWallet;
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}

‎public/index.html‎

Lines changed: 31 additions & 24 deletions
Original file line numberDiff line numberDiff line change
@@ -11,6 +11,7 @@
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<script src="./node_modules/dashhd/dashhd.js"></script>
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<script src="./node_modules/dashtx/dashtx.js"></script>
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<script src="./dashjoin.js"></script>
14+
<script src="./dashwallet.js"></script>
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<style>
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nav {
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margin-bottom: 0.3rem;
@@ -158,7 +159,9 @@ <h1>Digital Cash Wallet</h1>
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<table>
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<thead>
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<tr>
161-
<th><input onchange="toggleAll(event)" type="checkbox" /></th>
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<th>
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<input onchange="App.toggleAll(event)" type="checkbox" />
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</th>
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<th>Amount</th>
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<th>Address</th>
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<th>TXID</th>
@@ -173,7 +176,9 @@ <h1>Digital Cash Wallet</h1>
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<th></th>
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<th>
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<small
176-
><button type="button">Denominate Selected</button></small
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><button type="button" onclick="App.denominateCoins(event)">
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Denominate Selected
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</button></small
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>
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</th>
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<th></th>
@@ -214,7 +219,9 @@ <h1>Digital Cash Wallet</h1>
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/>
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</label>
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<small
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><button type="button" onclick="setMax(event)">Max</button></small
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><button type="button" onclick="App.setMax(event)">
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Max
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</button></small
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>
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<small><span data-id="send-dust">200</span> dust</small>
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<!-- <label -->
@@ -239,7 +246,7 @@ <h1>Digital Cash Wallet</h1>
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/>
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</label>
241248

242-
<button type="submit" onclick="sendDash(event)">Send DASH</button>
249+
<button type="submit" onclick="App.sendDash(event)">Send DASH</button>
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<hr />
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<label
@@ -262,8 +269,8 @@ <h1>Digital Cash Wallet</h1>
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<th>
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<input
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name="priority"
265-
onkeyup="syncCashDrawer(event)"
266-
onchange="syncCashDrawer(event)"
272+
onkeyup="App.syncCashDrawer(event)"
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onchange="App.syncCashDrawer(event)"
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type="number"
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step="1"
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min="0"
@@ -274,8 +281,8 @@ <h1>Digital Cash Wallet</h1>
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<th>
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<input
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name="want"
277-
onkeyup="syncCashDrawer(event)"
278-
onchange="syncCashDrawer(event)"
284+
onkeyup="App.syncCashDrawer(event)"
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onchange="App.syncCashDrawer(event)"
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type="number"
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step="1"
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min="0"
@@ -289,8 +296,8 @@ <h1>Digital Cash Wallet</h1>
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<th>
290297
<input
291298
name="priority"
292-
onkeyup="syncCashDrawer(event)"
293-
onchange="syncCashDrawer(event)"
299+
onkeyup="App.syncCashDrawer(event)"
300+
onchange="App.syncCashDrawer(event)"
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type="number"
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step="1"
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min="0"
@@ -301,8 +308,8 @@ <h1>Digital Cash Wallet</h1>
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<th>
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<input
303310
name="want"
304-
onkeyup="syncCashDrawer(event)"
305-
onchange="syncCashDrawer(event)"
311+
onkeyup="App.syncCashDrawer(event)"
312+
onchange="App.syncCashDrawer(event)"
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type="number"
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step="1"
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min="0"
@@ -316,8 +323,8 @@ <h1>Digital Cash Wallet</h1>
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<th>
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<input
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name="priority"
319-
onkeyup="syncCashDrawer(event)"
320-
onchange="syncCashDrawer(event)"
326+
onkeyup="App.syncCashDrawer(event)"
327+
onchange="App.syncCashDrawer(event)"
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type="number"
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step="1"
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min="0"
@@ -328,8 +335,8 @@ <h1>Digital Cash Wallet</h1>
328335
<th>
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<input
330337
name="want"
331-
onkeyup="syncCashDrawer(event)"
332-
onchange="syncCashDrawer(event)"
338+
onkeyup="App.syncCashDrawer(event)"
339+
onchange="App.syncCashDrawer(event)"
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type="number"
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step="1"
335342
min="0"
@@ -343,8 +350,8 @@ <h1>Digital Cash Wallet</h1>
343350
<th>
344351
<input
345352
name="priority"
346-
onkeyup="syncCashDrawer(event)"
347-
onchange="syncCashDrawer(event)"
353+
onkeyup="App.syncCashDrawer(event)"
354+
onchange="App.syncCashDrawer(event)"
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type="number"
349356
step="1"
350357
min="0"
@@ -355,8 +362,8 @@ <h1>Digital Cash Wallet</h1>
355362
<th>
356363
<input
357364
name="want"
358-
onkeyup="syncCashDrawer(event)"
359-
onchange="syncCashDrawer(event)"
365+
onkeyup="App.syncCashDrawer(event)"
366+
onchange="App.syncCashDrawer(event)"
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type="number"
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step="1"
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min="0"
@@ -370,8 +377,8 @@ <h1>Digital Cash Wallet</h1>
370377
<th>
371378
<input
372379
name="priority"
373-
onkeyup="syncCashDrawer(event)"
374-
onchange="syncCashDrawer(event)"
380+
onkeyup="App.syncCashDrawer(event)"
381+
onchange="App.syncCashDrawer(event)"
375382
type="number"
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step="1"
377384
min="0"
@@ -382,8 +389,8 @@ <h1>Digital Cash Wallet</h1>
382389
<th>
383390
<input
384391
name="want"
385-
onkeyup="syncCashDrawer(event)"
386-
onchange="syncCashDrawer(event)"
392+
onkeyup="App.syncCashDrawer(event)"
393+
onchange="App.syncCashDrawer(event)"
387394
type="number"
388395
step="1"
389396
min="0"

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