const inp = $input.first().json;
const a   = inp.action;
const t   = inp.trade || {};
const p   = inp.portfolio || {};
const btc = inp.btcSignal || {};
const ind = t.indicators || {};
const NL  = '\n';
const now3    = new Date(Date.now() + 3 * 3600000);
const timeStr = now3.toISOString().slice(11, 16) + ' UTC+3';
const btcLine = btc.trend ? 'BTC: ' + btc.trend.toUpperCase() + ' score:' + btc.score + ' RSI:' + btc.rsi + ' ROC5:' + btc.roc5 + '%' + NL : '';

let msg = '';

if (inp.orderStatus === 'ERROR') {
  msg = '\u26A0\uFE0F <b>ORDER ERROR</b> ' + timeStr + NL + (inp.message || 'Binance API error') + NL + 'Symbol: ' + (t.symbol||'?') + ' | Action: ' + (a||'?');

} else if (inp.orderStatus === 'SKIPPED') {
  if (inp.balanceFetchError) {
    msg = '\u26A0\uFE0F <b>BALANCE FETCH ERROR</b> ' + timeStr + NL + 'Cannot read USDT balance from Binance API' + NL + 'Check API key has Enable Reading permission on Binance' + NL + (inp.balanceFetchDiag || '');
  } else {
    return [];
  }

} else if (a === 'buy') {
  const fillPrice = t.realFillPrice || t.entryPrice || '?';
  const spent     = t.realQuoteSpent || t.tradeValue || '?';
  msg = '\uD83D\uDE80 <b>ENTRY: ' + (t.symbol||'?') + '</b> ' + timeStr + NL +
    'Score: ' + (t.score||0) + ' | +' + (+(t.change24h||0)).toFixed(2) + '% today' + NL +
    'Fill: $' + fillPrice + ' | Size: $' + spent + NL +
    'TP: +' + (t.tpPct||'?') + '% | SL: -' + (t.slPct||'?') + '%' + NL +
    (ind.rsi ? 'RSI: ' + ind.rsi + ' | VolAccel: ' + ind.volAccel + 'x' + NL : '') +
    btcLine +
    'Capital: $' + (t.capital||p.capital||'?') + ' | Trade #' + (t.todayTrades||1) + ' today';

} else if (a === 'close_switch') {
  const fillPrice = t.realFillPrice || t.exitPrice || '?';
  const netPnl = t.realNetPnl !== undefined ? t.realNetPnl : (t.netPnl || 0);
  const pnlPct = t.realPnlPct !== undefined ? t.realPnlPct : (t.pnlPct || 0);
  const fees   = t.realFees   !== undefined ? t.realFees   : (t.fees   || 0);
  msg = '\uD83D\uDD04 <b>SWITCH: Closed ' + (t.symbol||'?') + '</b> ' + timeStr + NL +
    'Fill: $' + fillPrice + ' | ' + (pnlPct>=0?'+':'') + pnlPct + '% | Net: $' + netPnl + NL +
    'Fees: $' + fees + ' | Held: ' + (t.holdMins||0) + ' min' + NL +
    btcLine +
    'Opening best pair next cycle...';

} else if (a === 'close_tp') {
  const fillPrice = t.realFillPrice || t.exitPrice || '?';
  const netPnl = t.realNetPnl !== undefined ? t.realNetPnl : (t.netPnl || 0);
  const pnlPct = t.realPnlPct !== undefined ? t.realPnlPct : (t.pnlPct || 0);
  const fees   = t.realFees   !== undefined ? t.realFees   : (t.fees   || 0);
  msg = '\u2705 <b>TAKE PROFIT: ' + (t.symbol||'?') + '</b> ' + timeStr + NL +
    'Entry: $' + (t.entryPrice||'?') + ' \u2192 Fill: $' + fillPrice + NL +
    'Held: ' + (t.holdMins||0) + 'min | <b>' + (pnlPct>=0?'+':'') + pnlPct + '% | Net: $' + netPnl + '</b>' + NL +
    'Fees: $' + fees + ' | ' + (t.reason||'TP') + NL +
    'W/L: ' + (t.wins||0) + 'W/' + (t.losses||0) + 'L (' + (t.winRate||0) + '%)' + NL +
    btcLine +
    'Capital: $' + (t.capital||p.capital||'?') + ' | Total P&L: $' + (t.totalPnl||p.totalPnl||0);

} else {
  const fillPrice = t.realFillPrice || t.exitPrice || '?';
  const netPnl = t.realNetPnl !== undefined ? t.realNetPnl : (t.netPnl || 0);
  const pnlPct = t.realPnlPct !== undefined ? t.realPnlPct : (t.pnlPct || 0);
  const fees   = t.realFees   !== undefined ? t.realFees   : (t.fees   || 0);
  msg = '\uD83D\uDED1 <b>STOP LOSS: ' + (t.symbol||'?') + '</b> ' + timeStr + NL +
    'Entry: $' + (t.entryPrice||'?') + ' \u2192 Fill: $' + fillPrice + NL +
    'Held: ' + (t.holdMins||0) + 'min | ' + pnlPct + '% | Net: $' + netPnl + NL +
    'Fees: $' + fees + ' | ' + (t.reason||'SL') + NL +
    btcLine +
    'Capital: $' + (t.capital||p.capital||'?') + ' | Total P&L: $' + (t.totalPnl||p.totalPnl||0);
}

if (!msg) return [];
return [{ json: { message: msg, action: a, trade: t } }];