theseus/bundled-addons/bchwallet/panel.js

// Aegis wallet panel. All state comes from activate() via window.silentmode.
// This file renders the multi-wallet picker, per-chain views, and collects
// input; it never touches keys or the vault.
const $ = (id) => document.getElementById(id);
const S = window.silentmode;
let state = null;                // full state (all wallets + selected)
let tab = "receive";
let unit = null;                 // "big" | "small" — chain-dependent
let sendMax = false;
let planTimer = null;
let lastPlan = null;
let settingsFilled = false;

const esc = (s) => String(s ?? "").replace(/[&<>"']/g, (c) => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;" })[c]);
const hostOf = (url) => { try { return new URL(url).host || url; } catch { return url; } };
const openUrl = (url) => S.invoke("openUrl", { url }).catch(() => {});
const cleanErr = (e) => String(e?.message || e).replace(/^Error invoking remote method '[^']+': Error: /, "");

// ---- coin logos ------------------------------------------------------------
// Inline SVGs so the header, wallet picker and settings surface all render
// the same mark. Sized by the container via width/height attributes.
function logoSvg(logo, size) {
  const s = size || 20;
  if (logo === "bch") {
    return `<svg viewBox="0 0 32 32" width="${s}" height="${s}" aria-label="Bitcoin Cash" style="vertical-align:middle;flex:none">
      <circle cx="16" cy="16" r="15.5" fill="#0ac18e" stroke="#0a9a72" stroke-width=".8"/>
      <text x="16" y="22.4" text-anchor="middle" font-family="Segoe UI,Arial,sans-serif" font-size="20" font-weight="800" fill="#fff">₿</text>
    </svg>`;
  }
  if (logo === "trx") {
    // Simplified from the official geometric Tron mark: triangle + tail line.
    return `<svg viewBox="0 0 32 32" width="${s}" height="${s}" aria-label="Tron" style="vertical-align:middle;flex:none">
      <circle cx="16" cy="16" r="15.5" fill="#ff060a" stroke="#c1050a" stroke-width=".8"/>
      <path d="M7.5 10.2 L24 12.5 L14.5 23.8 Z"
            fill="none" stroke="#fff" stroke-width="1.7" stroke-linejoin="round"/>
      <line x1="7.5" y1="10.2" x2="14.5" y2="23.8" stroke="#fff" stroke-width="1.7" stroke-linejoin="round"/>
    </svg>`;
  }
  if (logo === "sc") {
    // Sia's mark is a stylized S built from two mirrored crescents. Approximated
    // here with a plain S glyph on the brand green so it reads at 22px.
    return `<svg viewBox="0 0 32 32" width="${s}" height="${s}" aria-label="Siacoin" style="vertical-align:middle;flex:none">
      <circle cx="16" cy="16" r="15.5" fill="#20be82" stroke="#158e5f" stroke-width=".8"/>
      <text x="16" y="22.3" text-anchor="middle" font-family="Segoe UI,Arial,sans-serif" font-size="18" font-weight="800" fill="#fff">S</text>
    </svg>`;
  }
  if (logo === "dgb") {
    return `<svg viewBox="0 0 32 32" width="${s}" height="${s}" aria-label="DigiByte" style="vertical-align:middle;flex:none">
      <polygon points="10,2 22,2 30,10 30,22 22,30 10,30 2,22 2,10" fill="#0066cc" stroke="#004a99" stroke-width=".8"/>
      <text x="16" y="22.4" text-anchor="middle" font-family="Segoe UI,Arial,sans-serif" font-size="18" font-weight="800" fill="#fff">D</text>
    </svg>`;
  }
  if (logo === "eth") {
    // Ethereum's mark is the two-triangle rhombus. Simplified to the
    // silhouette on a light-purple disc so it reads at 22px.
    return `<svg viewBox="0 0 32 32" width="${s}" height="${s}" aria-label="Ethereum" style="vertical-align:middle;flex:none">
      <circle cx="16" cy="16" r="15.5" fill="#627eea" stroke="#4058c0" stroke-width=".8"/>
      <polygon points="16,5 22,17 16,20 10,17" fill="#fff" opacity=".95"/>
      <polygon points="16,21 22,18 16,27 10,18" fill="#fff" opacity=".7"/>
    </svg>`;
  }
  if (logo === "sol") {
    // Solana's three-slant mark. Purple → green gradient in the brand
    // spec; approximated with two solid parallelograms on a dark disc.
    return `<svg viewBox="0 0 32 32" width="${s}" height="${s}" aria-label="Solana" style="vertical-align:middle;flex:none">
      <circle cx="16" cy="16" r="15.5" fill="#0f0f14" stroke="#2a2a3a" stroke-width=".8"/>
      <polygon points="9,11 22,11 20,14 7,14" fill="#9945ff"/>
      <polygon points="9,15 22,15 20,18 7,18" fill="#14f195"/>
      <polygon points="9,19 22,19 20,22 7,22" fill="#00d1ff"/>
    </svg>`;
  }
  if (logo === "aegis") {
    // Athena's aspis — hexagonal shield with a boss at center + four
    // spoke marks. Same silhouette as the aegis.x hero SVG so the wallet
    // and the marketing page read as one identity.
    return `<svg viewBox="0 0 32 32" width="${s}" height="${s}" aria-label="Aegis" style="vertical-align:middle;flex:none">
      <polygon points="16,2 29,9 29,23 16,30 3,23 3,9" fill="none" stroke="#d6ff3d" stroke-width="2" stroke-linejoin="round"/>
      <circle cx="16" cy="16" r="4.3" fill="none" stroke="#d6ff3d" stroke-width="1.4"/>
      <circle cx="16" cy="16" r="1.3" fill="#d6ff3d"/>
      <path d="M16 10.5 v-2.4 M16 21.5 v2.4 M10.5 16 h-2.4 M21.5 16 h2.4" stroke="#d6ff3d" stroke-width="1.4" stroke-linecap="round"/>
    </svg>`;
  }
  // Fallback = Aegis shield (rather than a "?"), so an unrecognised
  // registry entry still looks intentional.
  return logoSvg("aegis", s);
}
function testnetTag() { return `<span class="ttag">TEST</span>`; }

// Selected wallet convenience.
const sel = () => state && state.selected;
const chain = () => sel()?.chain || "";
const decimals = () => sel()?.meta?.decimals || 8;
const ticker = () => sel()?.meta?.ticker || "";

// Numbers past ~9e15 lose precision as JS `Number`, and Sia amounts live at
// 10^24-scale routinely. Use BigInt for anything that arrives as a string.
function fmtBig(units, dec) {
  const d = dec != null ? dec : decimals();
  if (typeof units === "string" && /^-?\d+$/.test(units)) {
    const neg = units.startsWith("-");
    const raw = neg ? units.slice(1) : units;
    const bi = BigInt(raw || "0");
    const base = 10n ** BigInt(d);
    const whole = (bi / base).toString();
    let frac = (bi % base).toString().padStart(d, "0").replace(/0+$/, "");
    // Show 8-digit precision at most for very small units; keep 2 dp minimum.
    const cap = Math.min(d, 8);
    if (frac.length > cap) frac = frac.slice(0, cap);
    if (!frac) frac = "";
    return (neg ? "-" : "") + whole + (frac ? "." + frac : "");
  }
  const s = (Number(units || 0) / Math.pow(10, d)).toFixed(d);
  return s.replace(/(\.\d*?[1-9])0+$|\.0+$/, "$1");
}
function fmtSmall(units) {
  if (typeof units === "string" && /^-?\d+$/.test(units)) return units.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
  return Number(units || 0).toLocaleString("en-US");
}
function smallUnitLabel() {
  const c = chain();
  if (c === "bch" || c === "dgb") return "sat";
  if (c === "trx") return "sun";
  if (c === "sc")  return "H";
  if (c === "eth") return "wei";
  if (c === "sol") return "lamports";
  return "u";
}
// Some chains (SOL) suffix explorer URLs to tell devnet from mainnet.
function explorerHref(base, id) {
  const s = sel();
  return base + id + (s?.explorerSuffix || "");
}
function bigUnitLabel() { return ticker(); }

// ---- tabs ------------------------------------------------------------------

document.querySelectorAll("nav button").forEach((b) => b.addEventListener("click", () => showTab(b.dataset.tab)));
function showTab(name) {
  tab = name;
  document.querySelectorAll("nav button").forEach((b) => b.classList.toggle("on", b.dataset.tab === name));
  document.querySelectorAll("main section").forEach((s) => { s.hidden = s.id !== "tab-" + name; });
  if (name === "settings") { settingsFilled = false; fillSettings(); }
  if (name === "send") applyUnitPicker();
}

// ---- wallet picker (two-step add) ------------------------------------------

$("pickerBtn").addEventListener("click", () => {
  const d = $("drop");
  d.hidden = !d.hidden;
  if (!d.hidden) fillPicker();
});
document.addEventListener("click", (e) => {
  const d = $("drop");
  if (d.hidden) return;
  if (e.target.closest("#drop") || e.target.closest("#pickerBtn")) return;
  d.hidden = true;
});

function fillPicker() {
  const d = $("drop");
  const wallets = state?.wallets || [];
  const coins = state?.coins || [];
  const rowsHtml = wallets.map((w) => {
    const on = w.id === state.selectedWalletId ? "on" : "";
    const bal = w.balance ? fmtBig(w.balance.confirmed || 0, w.decimals) + " " + w.ticker : "—";
    const sub = `${esc(w.coinLabel)} · ${esc(w.networkLabel)}${w.testnet ? " " + testnetTag() : ""}`;
    return `<div class="row ${on}" data-select="${esc(w.id)}">
      ${logoSvg(w.logo, 22)}
      <div class="m"><div class="l">${esc(w.label)}</div><div class="s">${sub}</div></div>
      <div class="v">${esc(bal)}</div>
    </div>`;
  }).join("");
  // "Add wallet" is a two-step flyout: first show coins, then that coin's
  // networks. Nothing is created until the user clicks a specific network.
  const coinRows = coins.map((c) => {
    const testCount = c.networks.filter((n) => n.testnet).length;
    const sub = c.networks.length > 1
      ? c.networks.map((n) => n.label).join(" · ")
      : c.networks[0].label;
    return `<div class="coinrow" data-coin="${esc(c.chain)}">
      ${logoSvg(c.logo, 22)}
      <div class="m"><div class="l">${esc(c.label)}</div><div class="s">${esc(sub)}</div></div>
      <div class="caret">▸</div>
    </div>
    <div class="netgroup" id="netgroup-${esc(c.chain)}" hidden>
      ${c.networks.map((n) => `<div class="netchoice" data-add="${esc(c.chain + ":" + n.id)}">
        ${esc(n.label)}${n.testnet ? " " + testnetTag() : ""}
      </div>`).join("")}
    </div>`;
  }).join("");
  d.innerHTML =
    rowsHtml +
    `<hr><div class="addhdr">＋ Add wallet</div>${coinRows}`;

  d.querySelectorAll("[data-select]").forEach((r) => r.addEventListener("click", async () => {
    d.hidden = true;
    try { state = await S.invoke("selectWallet", { id: r.dataset.select }); settingsFilled = false; render(); }
    catch (e) { showErr(cleanErr(e)); }
  }));
  d.querySelectorAll(".coinrow").forEach((r) => r.addEventListener("click", () => {
    // Collapse other coins' network groups; toggle this one.
    d.querySelectorAll(".netgroup").forEach((g) => { if (g.id !== "netgroup-" + r.dataset.coin) g.hidden = true; });
    d.querySelectorAll(".coinrow .caret").forEach((c) => { c.textContent = "▸"; });
    const group = d.querySelector("#netgroup-" + r.dataset.coin);
    group.hidden = !group.hidden;
    r.querySelector(".caret").textContent = group.hidden ? "▸" : "▾";
  }));
  d.querySelectorAll("[data-add]").forEach((r) => r.addEventListener("click", async () => {
    const [c, n] = r.dataset.add.split(":");
    d.hidden = true;
    try { state = await S.invoke("addWallet", { chain: c, network: n }); settingsFilled = false; render(); }
    catch (e) { showErr(cleanErr(e)); }
  }));
}
function showErr(text) {
  const box = $("gate");
  box.hidden = false; box.innerHTML = `<div class="big">⚠</div><div>${esc(text)}</div>`;
  setTimeout(() => { if (state?.selected?.phase === "ready") { box.hidden = true; } }, 3500);
}

// ---- render ----------------------------------------------------------------

function render() {
  if (!state) return;
  const s = sel();
  const ready = s && s.phase === "ready";
  $("tabs").hidden = !ready;
  const gate = $("gate");
  gate.hidden = ready;
  // Header: replace the badge slot with the coin's SVG and show
  //   <wallet label>   <coin · network + optional TEST tag>
  $("hBadge").innerHTML = s?.meta?.logo ? logoSvg(s.meta.logo, 22) : logoSvg(null, 22);
  $("hLabel").textContent = s?.label || "Aegis Wallet";
  $("hNet").innerHTML = s?.meta
    ? `${esc(s.meta.coinLabel)} · ${esc(s.meta.networkLabel)}${s.meta.testnet ? " " + testnetTag() : ""}`
    : "";
  if (!ready) {
    const copy = {
      locked:  ["🔒", "Unlock your password vault to open the wallet.", "Settings › Passwords. Aegis derives its keys from the vault seed, so there is nothing separate to unlock."],
      nosetup: ["🗝", "Set up a password vault to create your wallet.", "Settings › Passwords › Set up. Use a recovery phrase there and every wallet in Aegis can be recreated from it on any machine."],
      error:   ["⚠", "This wallet could not start.", s?.error || ""],
      empty:   ["🧩", "No wallets yet.", "Open the wallet picker at the top and pick a coin, then a network to create one."],
    }[s?.phase || "locked"] || ["…", "Starting…", ""];
    gate.innerHTML = `<div class="big">${copy[0]}</div><div><b>${esc(copy[1])}</b></div><div class="hint" style="margin-top:8px">${esc(copy[2])}</div>`;
  }
  const dot = $("dot");
  dot.className = "dot " + (s?.server ? (s?.scanning ? "busy" : "on") : "");
  $("netlbl").textContent = s?.server ? hostOf(s.server) + (s?.scanning ? " · syncing" : "") : (ready ? "connecting…" : (s?.network || ""));
  if (ready) {
    // Sia-specific gate: adapter is up, keys are derived, but no walletd URL
    // means no balance / history until the user configures one in Settings.
    if (chain() === "sc" && s.needsWalletdUrl) {
      $("balMain").textContent = "—"; $("balTicker").textContent = s.meta.ticker;
      $("netlbl").textContent = "point Aegis at a walletd node in Settings";
      $("tabs").hidden = true;
      gate.hidden = false;
      gate.innerHTML = `<div class="big">🗝</div><div><b>Point Aegis at a walletd node</b></div><div class="hint" style="margin-top:8px">Settings › Sia › walletd URL. Any public or self-hosted <span class="mono">go.sia.tech/walletd</span> in "full" index mode works.</div>`;
      return;
    }
    const total = balanceSum(s.balance);
    $("balMain").textContent = fmtBig(total);
    $("balTicker").textContent = s.meta.ticker;
    const uc = s.balance?.unconfirmed;
    if (uc && uc !== "0" && uc !== 0) $("netlbl").textContent += ` · ${fmtBig(uc)} unconfirmed`;
  } else {
    $("balMain").textContent = "—"; $("balTicker").textContent = "";
  }
  if (!ready) return;
  const addr = s.address || "";
  if ($("addr").textContent !== addr) {
    $("addr").textContent = addr;
    drawQr(qrPayload(chain(), addr, sel()?.network));
  }
  $("addrMeta").textContent = s.addressPath ? "· " + s.addressPath : "";
  $("nextAddr").hidden = chain() !== "bch";
  $("openFaucet").hidden = !s.faucet;
  applyUnitPicker();
  $("feeField").hidden = chain() !== "bch";
  renderHistory();
}

function applyUnitPicker() {
  const s = sel(); if (!s) return;
  if (!unit) unit = "big";
  const big = bigUnitLabel(), small = smallUnitLabel();
  $("unitPicker").innerHTML =
    `<button data-u="big" class="${unit === "big" ? "on" : ""}" type="button">${esc(big)}</button>` +
    `<button data-u="small" class="${unit === "small" ? "on" : ""}" type="button">${esc(small)}</button>`;
  $("unitPicker").querySelectorAll("button").forEach((b) => b.addEventListener("click", () => setUnit(b.dataset.u)));
  $("sendTo").placeholder = ({
    bch: s.network === "chipnet" ? "bchtest:q… or legacy m…" : "bitcoincash:q… or legacy 1…",
    trx: "T… (base58check, 34 chars)",
    sc:  "addr1… (76-hex + checksum)",
    dgb: "dgb1q…  (or D… / S… depending on family)",
    eth: "0x… (40 hex chars, EIP-55)",
    sol: "base58 public key (32 bytes)",
  })[chain()] || "recipient address";
  $("sendAmt").placeholder = unit === "big" ? "0.00" : "0";
}
function setUnit(u) {
  if (u === unit) return;
  const s = amountUnits();
  unit = u;
  applyUnitPicker();
  if (s) $("sendAmt").value = unit === "big" ? fmtBig(s) : String(s);
}
function amountUnits() {
  const raw = $("sendAmt").value.trim().replace(/,/g, "");
  if (!raw) return 0;
  const d = decimals();
  const bigDecimals = d > 15;   // SC (24) needs BigInt to preserve precision.
  if (unit === "small") {
    if (bigDecimals) return raw.replace(/\D+/g, "") || "0";
    return Math.round(Number(raw));
  }
  const [w, f = ""] = raw.split(".");
  const frac = (f + "0".repeat(d)).slice(0, d);
  if (bigDecimals) {
    // "1.234" (24 dp) → BigInt("1000000000000000000000000") + BigInt("234000…")
    const total = (BigInt(w || "0") * (10n ** BigInt(d))) + BigInt(frac || "0");
    return total.toString();
  }
  return Number(w || 0) * Math.pow(10, d) + Number(frac || 0);
}
// Sum "confirmed + unconfirmed" BigInt-safely (strings for SC, numbers elsewhere).
function balanceSum(b) {
  if (!b) return 0;
  if (typeof b.confirmed === "string" || typeof b.unconfirmed === "string") {
    return (BigInt(b.confirmed || "0") + BigInt(b.unconfirmed || "0")).toString();
  }
  return (b.confirmed || 0) + (b.unconfirmed || 0);
}

// ---- history ---------------------------------------------------------------

function renderHistory() {
  const s = sel();
  const list = s?.history || [];
  const el = $("txlist");
  if (!list.length) { el.innerHTML = `<div class="empty">${s?.scanning ? "Syncing…" : "No transactions yet."}</div>`; return; }
  el.innerHTML = list.map((t) => {
    const inc = t.delta >= 0;
    const when = t.time ? new Date(t.time * 1000).toLocaleString(undefined, { dateStyle: "medium", timeStyle: "short" }) : "pending";
    const who = inc ? (t.from ? "from " + shortAddr(t.from) : "") : (t.to ? "to " + shortAddr(t.to) : "");
    const what = (inc ? "Received" : "Sent") + (who ? " " + who : "");
    const conf = t.confirmations > 0 ? (t.confirmations >= 6 ? "confirmed" : t.confirmations + " conf") : (t.status === "failed" ? "failed" : "unconfirmed");
    const delta = Math.abs(t.delta || 0);
    return `<div class="tx" data-txid="${esc(t.txid)}" title="${esc(t.txid)}">
      <div class="ic ${inc ? "in" : "out"}">${inc ? "↓" : "↑"}</div>
      <div class="what">${esc(what)}</div>
      <div class="amt2 ${inc ? "in" : ""}">${inc ? "+" : "−"}${delta ? fmtBig(delta) : "—"}</div>
      <div class="when">${esc(when)}${t.fee != null ? " · fee " + fmtSmall(t.fee) + " " + smallUnitLabel() : ""}</div>
      <div class="conf ${t.confirmations > 0 ? (t.status === "failed" ? "pending" : "") : "pending"}">${esc(conf)}</div>
    </div>`;
  }).join("");
  el.querySelectorAll(".tx").forEach((row) => row.addEventListener("click", () => openUrl(explorerHref(sel().explorerTx, row.dataset.txid))));
}
function shortAddr(a) {
  if (!a) return "";
  const s = String(a).replace(/^bitcoincash:|^bchtest:/, "");
  return esc(s.slice(0, 10)) + "…" + esc(s.slice(-4));
}

// ---- QR --------------------------------------------------------------------

// Coin-scheme URI so wallet apps that scan know which chain the payment is
// for. Follows each chain's own convention (BIP21 for BTC-family, EIP-681
// for ETH, Solana Pay for SOL, bare address for SC where no widely-agreed
// URI scheme exists).
function qrPayload(chain, address, network) {
  if (chain === "bch") return (network === "chipnet" ? "bchtest:" : "bitcoincash:") + String(address).replace(/^bitcoincash:|^bchtest:/, "");
  if (chain === "dgb") return "digibyte:" + address;
  if (chain === "eth") return "ethereum:" + address;
  if (chain === "sol") return "solana:" + address;
  if (chain === "trx") return "tron:" + address;
  return String(address);
}
function drawQr(text) {
  const cv = $("qr");
  const g = cv.getContext("2d");
  let q;
  try { q = window.QR.build(text); } catch { g.clearRect(0, 0, cv.width, cv.height); return; }
  const scale = Math.max(2, Math.floor(200 / (q.size + 2)));
  const px = (q.size + 2) * scale;
  cv.width = cv.height = px;
  cv.style.width = cv.style.height = px + "px";
  g.fillStyle = "#fff"; g.fillRect(0, 0, px, px);
  g.fillStyle = "#000";
  for (let r = 0; r < q.size; r++) for (let c = 0; c < q.size; c++) if (q.modules[r][c]) g.fillRect((c + 1) * scale, (r + 1) * scale, scale, scale);
}

// ---- receive actions -------------------------------------------------------

$("copyAddr").addEventListener("click", async () => {
  try { await navigator.clipboard.writeText(sel().address); flash($("copyAddr"), "Copied"); } catch {}
});
$("nextAddr").addEventListener("click", async () => {
  try { const s = await S.invoke("nextAddress"); state.selected = { ...state.selected, ...s }; render(); }
  catch (e) { flash($("nextAddr"), "Failed"); }
});
$("viewAddr").addEventListener("click", () => openUrl(explorerHref(sel().explorerAddr, sel().address)));
$("openFaucet").addEventListener("click", () => sel().faucet && openUrl(sel().faucet));
function flash(btn, text) {
  const old = btn.textContent; btn.textContent = text;
  setTimeout(() => { btn.textContent = old; }, 1200);
}

// ---- send ------------------------------------------------------------------

$("sendMax").addEventListener("click", () => {
  sendMax = !sendMax;
  $("sendMax").classList.toggle("primary", sendMax);
  $("sendAmt").disabled = sendMax;
  if (!sendMax) $("sendAmt").value = "";
  schedulePlan();
});
$("feeRate").addEventListener("input", () => { $("feeLbl").textContent = $("feeRate").value + " sat/B"; schedulePlan(); });
["sendTo", "sendAmt"].forEach((id) => $(id).addEventListener("input", () => { if (id === "sendAmt" && sendMax) return; schedulePlan(); }));
function schedulePlan() { clearTimeout(planTimer); planTimer = setTimeout(updatePlan, 250); }
async function updatePlan() {
  const to = $("sendTo").value.trim();
  const msg = $("sendMsg"); msg.hidden = true;
  lastPlan = null; $("sendBtn").disabled = true;
  $("sumAmt").textContent = $("sumFee").textContent = $("sumTotal").textContent = "—";
  $("sendToHint").textContent = "";
  if (!to || (!sendMax && !amountUnits())) return;
  try {
    const feeRate = chain() === "bch" ? Number($("feeRate").value) : undefined;
    const p = await S.invoke("planSend", { to, amount: amountUnits(), feeRate, sendMax });
    lastPlan = p;
    $("sendToHint").textContent = p.recipients[0].to !== to ? "→ " + p.recipients[0].to : "";
    $("sumAmt").textContent = fmtBig(p.recipients[0].value) + " " + ticker();
    $("sumFee").textContent = chain() === "bch"
      ? fmtSmall(p.fee) + " " + smallUnitLabel()
      : fmtBig(p.fee) + " " + ticker();
    $("sumTotal").textContent = fmtBig(p.total) + " " + ticker();
    if (sendMax) $("sendAmt").value = unit === "big" ? fmtBig(p.recipients[0].value) : String(p.recipients[0].value);
    $("sendBtn").disabled = false;
  } catch (e) {
    msg.className = "msg err"; msg.textContent = cleanErr(e); msg.hidden = false;
  }
}
$("sendBtn").addEventListener("click", async () => {
  if (!lastPlan) return;
  const msg = $("sendMsg"); msg.hidden = true;
  $("sendBtn").disabled = true; $("sendBtn").textContent = "Waiting for approval…";
  try {
    const feeRate = chain() === "bch" ? Number($("feeRate").value) : undefined;
    const r = await S.invoke("send", { to: $("sendTo").value.trim(), amount: amountUnits(), feeRate, sendMax });
    msg.className = "msg ok";
    msg.innerHTML = `Sent. <a class="link" data-tx="${esc(r.txid)}">${esc(r.txid.slice(0, 16))}…</a>`;
    msg.querySelector("a").addEventListener("click", () => openUrl(explorerHref(sel().explorerTx, r.txid)));
    msg.hidden = false;
    $("sendTo").value = ""; $("sendAmt").value = ""; sendMax = false;
    $("sendMax").classList.remove("primary"); $("sendAmt").disabled = false;
    lastPlan = null;
  } catch (e) {
    const t = cleanErr(e);
    if (t !== "cancelled") { msg.className = "msg err"; msg.textContent = t; msg.hidden = false; }
    $("sendBtn").disabled = !lastPlan;
  } finally { $("sendBtn").textContent = "Send"; }
});

// ---- settings --------------------------------------------------------------

function fillSettings() {
  const s = sel(); if (!s) return;
  $("bchSettings").hidden = chain() !== "bch";
  $("trxSettings").hidden = chain() !== "trx";
  $("scSettings").hidden = chain() !== "sc";
  $("dgbSettings").hidden = chain() !== "dgb";
  $("ethSettings").hidden = chain() !== "eth";
  $("solSettings").hidden = chain() !== "sol";
  $("removeBtn").disabled = !!s.isLegacy && s.chain === "bch";
  $("removeHint").textContent = (s.isLegacy && s.chain === "bch")
    ? "The default BCH wallet cannot be removed (it protects legacy funds)."
    : (s.isLegacy && s.chain === "sc" ? "Removing this wallet unlinks it from Aegis. Funds stay on-chain and reappear if you add a Siacoin wallet again with the legacy seed slot." : "");
  $("renameLabel").value = s.label || "";
  if (chain() === "bch") {
    if (!settingsFilled) {
      $("setPath").value = s.accountPath || "";
      $("setServers").value = (state.bchServers?.list || []).join("\n");
      settingsFilled = true;
    }
    $("bchServersRow").hidden = s.network !== "mainnet";
    $("serverHint").textContent = s.network !== "mainnet"
      ? "Chipnet uses bundled defaults in this build."
      : (state.bchServers?.custom ? "Custom list." : "Bundled defaults.") + (s.server ? " Connected to " + hostOf(s.server) + "." : " Not connected.");
    $("purpose").textContent = "silentmode/addons/" + (s.purpose || "");
  } else if (chain() === "trx") {
    $("trxPurpose").textContent = "silentmode/addons/" + (s.purpose || "");
  } else if (chain() === "sc") {
    if (!settingsFilled) {
      $("setWalletdUrl").value = s.walletdUrl || "";
      settingsFilled = true;
    }
    $("scPurpose").textContent = "silentmode/addons/" + (s.purpose || "");
    $("scRecovery").innerHTML = "";
  } else if (chain() === "dgb") {
    const families = s.meta?.addressFamilies || [];
    if (!settingsFilled) {
      $("setDgbPath").value = s.accountPath || "";
      // Match the current path to a family, falling back to the default.
      const current = String(s.accountPath || "");
      let currentFamilyId = families.find((f) => f.defaultAccountPath === current)?.id;
      if (!currentFamilyId) {
        const m = /^m\/(\d+)'/.exec(current);
        const purpose = m ? Number(m[1]) : null;
        currentFamilyId = families.find((f) => f.purpose === purpose)?.id || families[0]?.id;
      }
      $("setDgbFamily").innerHTML = families.map((f) =>
        `<option value="${esc(f.id)}" data-path="${esc(f.defaultAccountPath)}" ${f.id === currentFamilyId ? "selected" : ""}>${esc(f.label)}</option>`
      ).join("");
      settingsFilled = true;
    }
    $("dgbPurpose").textContent = "silentmode/addons/" + (s.purpose || "");
    $("dgbRecovery").innerHTML = "";
  } else if (chain() === "eth") {
    if (!settingsFilled) {
      $("setEthRpcUrl").value = s.rpcUrl || "";
      settingsFilled = true;
    }
    $("ethPurpose").textContent = "silentmode/addons/" + (s.purpose || "");
    $("ethRecovery").innerHTML = "";
  } else if (chain() === "sol") {
    if (!settingsFilled) {
      $("setSolRpcUrl").value = s.rpcUrl || "";
      settingsFilled = true;
    }
    $("solPurpose").textContent = "silentmode/addons/" + (s.purpose || "");
    $("solRecovery").innerHTML = "";
  }
  renderSites();
}
async function renderSites() {
  let perms = {};
  try { perms = await S.invoke("permissions"); } catch {}
  const origins = Object.keys(perms).filter((o) => {
    const p = perms[o];
    return p && (p.readAddress || p.sendTx || (p.trx && p.trx.readAddress));
  });
  const el = $("sites");
  if (!origins.length) { el.innerHTML = `<div class="hint">None yet.</div>`; return; }
  el.innerHTML = origins.map((o) => {
    const p = perms[o]; const what = [];
    if (p.readAddress) what.push("BCH address");
    if (p.sendTx) what.push(`BCH payments: ${fmtBig(Math.max(0, p.sendTx.capSats - (p.sendTx.usedSats || 0)), 8)} of ${fmtBig(p.sendTx.capSats, 8)} BCH left`);
    if (p.trx && p.trx.readAddress) what.push("Tron " + (p.trx.network === "nile" ? "Nile testnet" : "mainnet") + " address");
    return `<div class="tx" style="grid-template-columns:1fr auto;cursor:default"><div><div class="mono">${esc(o)}</div><div class="hint">${esc(what.join(" · "))}</div></div><button class="btn sm" data-origin="${esc(o)}">Revoke</button></div>`;
  }).join("");
  el.querySelectorAll("button[data-origin]").forEach((b) => b.addEventListener("click", async () => {
    try { await S.invoke("revoke", { origin: b.dataset.origin }); renderSites(); } catch {}
  }));
}

$("applySettings").addEventListener("click", async () => {
  const msg = $("settingsMsg"); msg.hidden = true;
  try {
    const path = $("setPath").value.trim();
    const servers = $("setServers").value.split(/\n+/).map((s) => s.trim()).filter(Boolean);
    if (path && path !== (sel().accountPath || "")) {
      state = await S.invoke("setAccountPath", { id: state.selectedWalletId, accountPath: path });
    }
    if (sel().network === "mainnet") {
      const currentJoined = (state.bchServers?.list || []).join();
      if (state.bchServers?.custom || servers.join() !== currentJoined) {
        state = await S.invoke("setBchServers", { servers });
      }
    }
    settingsFilled = false; fillSettings(); render();
    flash($("applySettings"), "Applied");
  } catch (e) { msg.textContent = cleanErr(e); msg.hidden = false; }
});
$("resetServers").addEventListener("click", async () => {
  try { state = await S.invoke("setBchServers", { servers: [] }); settingsFilled = false; fillSettings(); render(); }
  catch (e) { $("settingsMsg").textContent = cleanErr(e); $("settingsMsg").hidden = false; }
});
$("renameBtn").addEventListener("click", async () => {
  const label = $("renameLabel").value.trim();
  if (!label) return;
  try { state = await S.invoke("renameWallet", { id: state.selectedWalletId, label }); render(); flash($("renameBtn"), "Renamed"); }
  catch (e) { $("settingsMsg").textContent = cleanErr(e); $("settingsMsg").hidden = false; }
});
$("removeBtn").addEventListener("click", async () => {
  const s = sel(); if (!s || s.isLegacy) return;
  if (!confirm(`Remove the wallet "${s.label}"?\n\nThe on-chain address stays; the wallet is unlinked from Aegis. You can add it back later by creating a new wallet on the same coin + network.`)) return;
  try { state = await S.invoke("removeWallet", { id: state.selectedWalletId }); settingsFilled = false; render(); }
  catch (e) { $("settingsMsg").textContent = cleanErr(e); $("settingsMsg").hidden = false; }
});
$("showXpub").addEventListener("click", async () => {
  try { const r = await S.invoke("recovery", { id: state.selectedWalletId }); $("recovery").innerHTML = recoveryHtml(r); }
  catch (e) { $("recovery").textContent = cleanErr(e); }
});
$("showXprv").addEventListener("click", async () => {
  try { const r = await S.invoke("recovery", { id: state.selectedWalletId, reveal: true }); $("recovery").innerHTML = recoveryHtml(r); }
  catch (e) { $("recovery").textContent = cleanErr(e); }
});
function recoveryHtml(r) {
  let h = `<div class="lbl">Account path</div><div class="mono">${esc(r.accountPath)}</div><div class="lbl">Account xpub</div><div class="mono">${esc(r.xpub)}</div>`;
  if (r.xprv) h += `<div class="lbl">Account private key (xprv)</div><div class="mono" style="color:var(--danger)">${esc(r.xprv)}</div>`;
  return h;
}
document.querySelectorAll("nav button").forEach((b) => b.addEventListener("click", () => {
  if (b.dataset.tab !== "settings") {
    $("recovery").innerHTML = "";
    $("scRecovery").innerHTML = "";
    $("dgbRecovery").innerHTML = "";
    $("ethRecovery").innerHTML = "";
    $("solRecovery").innerHTML = "";
  }
}));

// Sia-specific settings.
$("applyWalletdUrl").addEventListener("click", async () => {
  const msg = $("settingsMsg"); msg.hidden = true;
  try {
    state = await S.invoke("setWalletdUrl", { id: state.selectedWalletId, walletdUrl: $("setWalletdUrl").value.trim() });
    settingsFilled = false; fillSettings(); render(); flash($("applyWalletdUrl"), "Applied");
  } catch (e) { msg.textContent = cleanErr(e); msg.hidden = false; }
});
$("showScSeed").addEventListener("click", async () => {
  try {
    const r = await S.invoke("recovery", { id: state.selectedWalletId, reveal: true });
    $("scRecovery").innerHTML =
      `<div class="lbl">First address (index 0)</div><div class="mono">${esc(r.xpub || "")}</div>` +
      (r.xprv ? `<div class="lbl">Wallet seed (hex)</div><div class="mono" style="color:var(--danger)">${esc(r.xprv)}</div>` : "");
  } catch (e) { $("scRecovery").textContent = cleanErr(e); }
});

// DGB-specific settings.
// Family select → auto-fill the derivation-path input with that family's default.
document.addEventListener("change", (e) => {
  if (e.target && e.target.id === "setDgbFamily") {
    const opt = e.target.options[e.target.selectedIndex];
    if (opt && opt.dataset.path) $("setDgbPath").value = opt.dataset.path;
  }
});
$("applyDgbPath").addEventListener("click", async () => {
  const msg = $("settingsMsg"); msg.hidden = true;
  try {
    state = await S.invoke("setAccountPath", { id: state.selectedWalletId, accountPath: $("setDgbPath").value.trim() });
    settingsFilled = false; fillSettings(); render(); flash($("applyDgbPath"), "Applied");
  } catch (e) { msg.textContent = cleanErr(e); msg.hidden = false; }
});

// ETH / SOL: RPC URL.
$("applyEthRpc").addEventListener("click", async () => {
  const msg = $("settingsMsg"); msg.hidden = true;
  try {
    state = await S.invoke("setRpcUrl", { id: state.selectedWalletId, rpcUrl: $("setEthRpcUrl").value.trim() });
    settingsFilled = false; fillSettings(); render(); flash($("applyEthRpc"), "Applied");
  } catch (e) { msg.textContent = cleanErr(e); msg.hidden = false; }
});
$("applySolRpc").addEventListener("click", async () => {
  const msg = $("settingsMsg"); msg.hidden = true;
  try {
    state = await S.invoke("setRpcUrl", { id: state.selectedWalletId, rpcUrl: $("setSolRpcUrl").value.trim() });
    settingsFilled = false; fillSettings(); render(); flash($("applySolRpc"), "Applied");
  } catch (e) { msg.textContent = cleanErr(e); msg.hidden = false; }
});
$("showEthKey").addEventListener("click", async () => {
  try {
    const r = await S.invoke("recovery", { id: state.selectedWalletId, reveal: true });
    $("ethRecovery").innerHTML =
      `<div class="lbl">Address</div><div class="mono">${esc(sel().address || "")}</div>` +
      `<div class="lbl">Public key (uncompressed hex)</div><div class="mono">${esc(r.xpub || "")}</div>` +
      (r.xprv ? `<div class="lbl">Private key (hex)</div><div class="mono" style="color:var(--danger)">${esc(r.xprv)}</div>` : "");
  } catch (e) { $("ethRecovery").textContent = cleanErr(e); }
});
$("showSolKey").addEventListener("click", async () => {
  try {
    const r = await S.invoke("recovery", { id: state.selectedWalletId, reveal: true });
    $("solRecovery").innerHTML =
      `<div class="lbl">Address (public key, base58)</div><div class="mono">${esc(r.xpub || "")}</div>` +
      (r.xprv ? `<div class="lbl">Wallet seed (hex, 32 bytes)</div><div class="mono" style="color:var(--danger)">${esc(r.xprv)}</div>` : "");
  } catch (e) { $("solRecovery").textContent = cleanErr(e); }
});
$("showDgbXpub").addEventListener("click", async () => {
  try { const r = await S.invoke("recovery", { id: state.selectedWalletId }); $("dgbRecovery").innerHTML = recoveryHtml(r); }
  catch (e) { $("dgbRecovery").textContent = cleanErr(e); }
});
$("showDgbXprv").addEventListener("click", async () => {
  try { const r = await S.invoke("recovery", { id: state.selectedWalletId, reveal: true }); $("dgbRecovery").innerHTML = recoveryHtml(r); }
  catch (e) { $("dgbRecovery").textContent = cleanErr(e); }
});

// ---- boot ------------------------------------------------------------------
S.on("state", (s) => { state = s; render(); if (tab === "settings") fillSettings(); });
(async () => {
  try { state = await S.invoke("state"); render(); }
  catch (e) { $("gate").hidden = false; $("gate").innerHTML = `<div class="big">⚠</div><div>${esc(cleanErr(e))}</div>`; }
})();