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

import {
  buildIntentRequestOutcomeNotification,
  buildLiquidityActionNotification,
  buildQuoteOutcomeNotification,
  createNotificationDispatcher,
  hasProvenSettlement,
  observedAtOrAfter,
} from '../src/core/notification-layer.mjs';

const BTC = { assetId: 'nep141:btc.omft.near', symbol: 'BTC', decimals: 8 };
const EURE = { assetId: 'nep141:eure.omft.near', symbol: 'EURe', decimals: 18 };
const config = {
  tradingBtc: BTC,
  tradingEure: EURE,
  assetRegistry: new Map([
    [BTC.assetId, BTC],
    [EURE.assetId, EURE],
  ]),
};

test('liquidity notifications only emit credited deposits and completed withdrawals', () => {
  assert.equal(buildLiquidityActionNotification({
    config,
    event: {
      payload: {
        action_type: 'deposit_status_observed',
        status: 'PENDING',
        chain: 'eth:100',
        asset_id: EURE.assetId,
        details: { amount: '5000000000000000000', tx_hash: 'deposit-tx-1' },
      },
    },
  }), null);

  const deposit = buildLiquidityActionNotification({
    config,
    event: {
      payload: {
        action_type: 'deposit_status_observed',
        status: 'CREDITED',
        chain: 'eth:100',
        asset_id: EURE.assetId,
        details: { amount: '5000000000000000000', tx_hash: 'deposit-tx-1' },
      },
    },
  });
  assert.equal(deposit.notification_type, 'deposit_credited');
  assert.match(deposit.message, /Deposit credited: 5 EURe/);
  assert.match(deposit.message, /tx=deposit-tx-1/);

  assert.equal(buildLiquidityActionNotification({
    config,
    event: {
      payload: {
        action_type: 'withdrawal_status_changed',
        status: 'SUBMITTED',
        chain: 'btc:mainnet',
        asset_id: BTC.assetId,
        details: { amount: '100000', withdrawal_hash: 'withdrawal-1' },
      },
    },
  }), null);

  const withdrawal = buildLiquidityActionNotification({
    config,
    event: {
      payload: {
        action_type: 'withdrawal_status_changed',
        status: 'COMPLETED',
        chain: 'btc:mainnet',
        asset_id: BTC.assetId,
        details: { amount: '100000', withdrawal_hash: 'withdrawal-1', transfer_tx_hash: 'btc-tx-1' },
      },
    },
  });
  assert.equal(withdrawal.notification_type, 'withdrawal_completed');
  assert.match(withdrawal.message, /Withdrawal completed: 0.001 BTC/);
  assert.match(withdrawal.message, /transfer=btc-tx-1/);
});

test('trade notifications require completed outcome with durable settlement evidence', () => {
  const submitted = {
    quote_id: 'quote-submitted',
    outcome_status: 'submitted',
    attribution_status: 'unattributed',
    attributed_inventory_delta: null,
  };
  assert.equal(hasProvenSettlement(submitted), false);
  assert.equal(buildQuoteOutcomeNotification({ record: submitted, config }), null);

  const completedWithoutDelta = {
    quote_id: 'quote-fake-completed',
    outcome_status: 'completed',
    attribution_status: 'unattributed',
    attributed_inventory_delta: null,
  };
  assert.equal(hasProvenSettlement(completedWithoutDelta), false);
  assert.equal(buildQuoteOutcomeNotification({ record: completedWithoutDelta, config }), null);

  const completed = {
    quote_id: 'quote-real',
    decision_id: 'decision-real',
    command_id: 'command-real',
    gross_edge_pct: '0.49',
    outcome_status: 'completed',
    attribution_status: 'heuristic_match',
    attributed_inventory_delta: {
      inventory_id: 'inventory-after',
      delta_units: {
        [BTC.assetId]: '-12345',
        [EURE.assetId]: '76500000000000000000',
      },
    },
  };
  const notification = buildQuoteOutcomeNotification({ record: completed, config });
  assert.equal(notification.notification_type, 'trade_completed');
  assert.match(notification.message, /Quote trade completed: quote-real/);
  assert.match(notification.message, /-0.00012345 BTC/);
  assert.match(notification.message, /\+76.5 EURe/);
});

test('own request notifications do not emit from relay acceptance alone', () => {
  const accepted = {
    request_id: 'request-accepted',
    outcome_status: 'awaiting_settlement',
    submission_status: 'accepted_by_relay',
    relay_status: 'SETTLED',
    attribution_status: 'unattributed',
    attributed_inventory_delta: null,
  };
  assert.equal(buildIntentRequestOutcomeNotification({ record: accepted, config }), null);

  const completed = {
    request_id: 'request-completed',
    idempotency_key: 'idem-1',
    intent_hash: 'intent-hash-1',
    outcome_status: 'completed',
    attribution_status: 'linked_settlement',
    attributed_inventory_delta: {
      inventory_id: 'inventory-after-request',
      delta_units: {
        [EURE.assetId]: '-5000000000000000000',
        [BTC.assetId]: '8000',
      },
    },
  };
  const notification = buildIntentRequestOutcomeNotification({ record: completed, config });
  assert.equal(notification.notification_type, 'trade_completed');
  assert.match(notification.message, /Own request completed: request-completed/);
  assert.match(notification.message, /-5 EURe/);
  assert.match(notification.message, /\+0.00008 BTC/);
});

test('notification dispatcher publishes each durable notification key once', async () => {
  const calls = [];
  const claimed = new Set();
  const finished = [];
  const dispatcher = createNotificationDispatcher({
    client: {
      isConfigured: () => true,
      async publish(notification) {
        calls.push(notification);
        return { ok: true, status: 200, response: '{"id":"msg-1"}' };
      },
    },
    store: {
      async claim(notification) {
        if (claimed.has(notification.notification_key)) return false;
        claimed.add(notification.notification_key);
        return true;
      },
      async finish(notification, result) {
        finished.push({ notification, result });
      },
    },
  });

  const notification = {
    notification_key: 'deposit_credited:eth:100:eure:tx-1:5000',
    notification_type: 'deposit_credited',
    source_kind: 'liquidity_action',
    source_id: 'tx-1',
    title: 'Deposit credited',
    message: 'Deposit credited: 5 EURe',
    priority: 'default',
    tags: ['unrip', 'deposit'],
  };

  assert.equal((await dispatcher.publishOnce(notification)).delivered, true);
  assert.deepEqual(await dispatcher.publishOnce(notification), {
    ok: true,
    skipped: true,
    reason: 'notification_already_delivered',
  });
  assert.equal(calls.length, 1);
  assert.equal(finished.length, 1);
});

test('outcome recency filter keeps startup refresh from sending historical notifications', () => {
  assert.equal(observedAtOrAfter('2026-04-16T10:00:00.000Z', '2026-04-16T09:59:59.000Z'), true);
  assert.equal(observedAtOrAfter('2026-04-16T09:00:00.000Z', '2026-04-16T09:59:59.000Z'), false);
});