import test from 'node:test';
import assert from 'node:assert/strict';

import {
  buildFundingVisibility,
  correlateFundingObservation,
  hasFundingObservationChanged,
} from '../src/core/funding-observations.mjs';
import { buildInventorySnapshot } from '../src/core/inventory.mjs';
import { routeHistoryRecord } from '../src/core/history-records.mjs';

test('pre-credit funding visibility remains non-spendable', () => {
  const observation = correlateFundingObservation({
    accountId: 'solver.near',
    assetId: 'nep141:btc.omft.near',
    chain: 'btc:mainnet',
    fundingHandle: 'bc1qexample',
    source: 'btc_mempool_space',
    txHash: 'btc-tx-1',
    amount: '1500',
    confirmations: 0,
    observedAt: '2026-04-03T08:00:00.000Z',
  });

  const inventory = buildInventorySnapshot({
    accountId: 'solver.near',
    balances: {
      'nep141:btc.omft.near': '1000',
    },
    recentDeposits: [],
    trackedWithdrawals: [],
    assetRegistry: new Map([
      ['nep141:btc.omft.near', { decimals: 8 }],
    ]),
    observedAt: '2026-04-03T08:01:00.000Z',
  });
  const visibility = buildFundingVisibility([observation], {
    now: '2026-04-03T08:01:00.000Z',
  });

  assert.equal(observation.status, 'SEEN_UNCONFIRMED');
  assert.equal(inventory.spendable['nep141:btc.omft.near'], '1000');
  assert.equal(visibility.pre_credit_inbound['nep141:btc.omft.near'], '1500');
  assert.equal(visibility.by_handle.bc1qexample.observations[0].spendable, false);
});

test('funding observation correlates to later credit without losing tx hash', () => {
  const seen = correlateFundingObservation({
    accountId: 'solver.near',
    assetId: 'nep141:btc.omft.near',
    chain: 'btc:mainnet',
    fundingHandle: 'bc1qexample',
    source: 'btc_mempool_space',
    txHash: 'btc-tx-1',
    amount: '1500',
    confirmations: 2,
    observedAt: '2026-04-03T08:00:00.000Z',
  });
  const credited = correlateFundingObservation({
    existing: seen,
    accountId: 'solver.near',
    assetId: 'nep141:btc.omft.near',
    chain: 'btc:mainnet',
    fundingHandle: 'bc1qexample',
    source: 'btc_mempool_space',
    txHash: 'btc-tx-1',
    amount: '1500',
    confirmations: 3,
    observedAt: '2026-04-03T08:10:00.000Z',
    bridgeDeposit: {
      tx_hash: 'btc-tx-1',
      status: 'COMPLETED',
    },
  });

  assert.equal(credited.status, 'CREDITED');
  assert.equal(credited.tx_hash, 'btc-tx-1');
  assert.equal(credited.bridge_deposit_tx_hash, 'btc-tx-1');
  assert.equal(credited.funding_observation_id, seen.funding_observation_id);
  assert.equal(credited.credited_at, '2026-04-03T08:10:00.000Z');
});

test('funding observation republishes when bridge metadata changes credited BTC wrapper', () => {
  const previous = correlateFundingObservation({
    accountId: 'solver.near',
    assetId: 'nep141:nbtc.bridge.near',
    chain: 'btc:mainnet',
    fundingHandle: 'bc1qexample',
    source: 'btc_mempool_space',
    txHash: 'btc-tx-1',
    amount: '1500',
    confirmations: 1,
    observedAt: '2026-05-07T13:00:00.000Z',
  });
  const next = {
    ...previous,
    asset_id: 'nep141:btc.omft.near',
  };

  assert.equal(hasFundingObservationChanged(previous, next), true);
});

test('history writer routes funding observations into the funding table family', () => {
  const routed = routeHistoryRecord({
    topic: 'ops.funding_observation',
    event: {
      event_id: 'evt-funding-1',
      event_type: 'funding_observation',
      venue: 'near-intents',
      schema_version: 1,
      ingested_at: '2026-04-03T08:00:00.000Z',
      payload: {
        funding_observation_id: 'funding-1',
        account_id: 'solver.near',
        asset_id: 'nep141:btc.omft.near',
        chain: 'btc:mainnet',
        funding_handle: 'bc1qexample',
        source: 'btc_mempool_space',
        tx_hash: 'btc-tx-1',
        status: 'SEEN_CONFIRMED',
        amount: '1500',
        confirmations: 2,
        first_seen_at: '2026-04-03T08:00:00.000Z',
        last_seen_at: '2026-04-03T08:05:00.000Z',
      },
    },
  });

  assert.equal(routed.table, 'funding_observations');
  assert.equal(routed.record.decision_key, 'funding-1');
});