/**
 * Проверка схемы «цена закрытия из истории» на РЕАЛЬНОЙ ставке.
 * Читает аккаунт Bet из localnet СЫРЫМИ БАЙТАМИ (без Anchor-обёрток),
 * берёт bet_time/expire_time/entry_price и спрашивает Postgres binance-market.
 *
 * Раскладка Bet (Anchor, после 8-байтового дискриминатора):
 *   offset 8  : amount       u64
 *   offset 16 : bet_time     i64
 *   offset 24 : expire_time  i64
 *   offset 32 : entry_price  u64
 *   offset 40 : exit_price   u64
 *   offset 48 : side         u64
 *   offset 56 : status       u64
 *   offset 64 : bettor       Pubkey(32)
 */
const { Connection, PublicKey } = require("@solana/web3.js");
const { Client } = require("pg");

const PROGRAM_ID = new PublicKey(process.argv[2] || "9ALsnxXNzDBv3mokngCHbruRTWUZiWR7pf7vswS1fCpf");
const BET_ID = Number(process.argv[3] || 6);
const RPC = "http://192.168.76.181:8899";

const u64 = (b, o) => b.readBigUInt64LE(o);
const i64 = (b, o) => b.readBigInt64LE(o);

(async () => {
  const conn = new Connection(RPC, "confirmed");

  const seeds = Buffer.concat([Buffer.from("bet"), (() => {
    const a = Buffer.alloc(8); a.writeBigUInt64LE(BigInt(BET_ID)); return a;
  })()]);
  const [betPda] = PublicKey.findProgramAddressSync([seeds], PROGRAM_ID);

  const info = await conn.getAccountInfo(betPda, "confirmed");
  if (!info) throw new Error("bet account not found: " + betPda.toBase58());
  const d = info.data;

  const amount = u64(d, 8);
  const betTime = Number(i64(d, 16));
  const exp = Number(i64(d, 24));
  const entry = u64(d, 32);
  const exitP = u64(d, 40);
  const side = u64(d, 48);
  const status = u64(d, 56);
  const bettor = new PublicKey(d.subarray(64, 96)).toBase58();

  console.log("=== СТАВКА №" + BET_ID + " (сырые байты аккаунта) ===");
  console.log("PDA        :", betPda.toBase58());
  console.log("amount     :", amount.toString());
  console.log("bet_time   :", betTime, new Date(betTime * 1000).toISOString());
  console.log("expire_time:", exp, new Date(exp * 1000).toISOString(), "(=bet_time+" + (exp - betTime) + "с)");
  console.log("entry_price:", entry.toString(), " exit_price:", exitP.toString());
  console.log("side:", side.toString(), " status:", status.toString(), " bettor:", bettor);
  console.log("СЕЙЧАС     :", Math.floor(Date.now() / 1000), new Date().toISOString());
  console.log("просрочена на:", Math.floor(Date.now() / 1000) - exp, "с");

  const c = new Client({ host: "192.168.76.182", port: 5434, user: "postgres", password: "postgres", database: "binance_market" });
  await c.connect();

  const q = async (label, sql, params) => {
    const r = await c.query(sql, params);
    console.log("\n--- " + label + " ---");
    if (!r.rows.length) console.log("(ПУСТО — цены нет вовсе)");
    for (const row of r.rows) console.log(JSON.stringify(row));
    return r.rows;
  };

  const bMs = betTime * 1000, eMs = exp * 1000;

  await q("1) сделки в окне ставки [bet_time, expire]", `
    SELECT price::text AS price, event_time, to_timestamp(event_time/1000) AS t
    FROM trade_event WHERE symbol='solusdt' AND event_time BETWEEN $1 AND $2
    ORDER BY event_time`, [bMs, eMs]);

  const e1 = await q("2) ENTRY = последняя цена НЕ ПОЗЖЕ bet_time", `
    SELECT price::text AS price, event_time, to_timestamp(event_time/1000) AS t
    FROM trade_event WHERE symbol='solusdt' AND event_time <= $1
    ORDER BY event_time DESC LIMIT 1`, [bMs]);

  const e2 = await q("3) EXIT = последняя цена НЕ ПОЗЖЕ expire_time", `
    SELECT price::text AS price, event_time, to_timestamp(event_time/1000) AS t
    FROM trade_event WHERE symbol='solusdt' AND event_time <= $1
    ORDER BY event_time DESC LIMIT 1`, [eMs]);

  if (e1[0] && e2[0]) {
    const p1 = BigInt(e1[0].price.replace(".", "").padEnd(0));
    const a = e1[0].price, b = e2[0].price;
    console.log("\n=== ИТОГ ПО СХЕМЕ ===");
    console.log("entry из истории:", a, "| entry on-chain:", entry.toString(), "(on-chain = price*1e8)");
    console.log("exit  из истории:", b);
    const toI = (s) => { const [i, f = ""] = s.split("."); return BigInt(i + f.padEnd(8, "0").slice(0, 8)); };
    const ai = toI(a), bi = toI(b);
    console.log("entry(int):", ai.toString(), " exit(int):", bi.toString());
    console.log("вердикт по контракту:", bi > ai ? "UP выиграл" : bi < ai ? "DOWN выиграл" : "РАВНО — ставка зависает (текущий контракт не финализирует)");
  }

  await q("4) ЧТО БЫЛО БЫ при 'ждать выгодной цены' (после экспирации, +2 мин)", `
    SELECT min(price)::text AS min_p, max(price)::text AS max_p, count(*) AS n,
           min(to_timestamp(event_time/1000)) AS с, max(to_timestamp(event_time/1000)) AS по
    FROM trade_event WHERE symbol='solusdt' AND event_time > $1 AND event_time <= $2`,
    [eMs, (exp + 120) * 1000]);

  await c.end();
})().catch((e) => { console.error("ERR:", e.message); process.exit(1); });