from __future__ import annotations

import sys
import unittest
from decimal import Decimal
from pathlib import Path
from unittest import mock

sys.path.insert(0, str(Path(__file__).resolve().parent))

import watch_live_mm


ASSETS = {
    "nep141:btc.omft.near": watch_live_mm.AssetMeta(
        asset_id="nep141:btc.omft.near",
        symbol="BTC",
        decimals=8,
    ),
    "nep141:eure": watch_live_mm.AssetMeta(
        asset_id="nep141:eure",
        symbol="EURe",
        decimals=18,
    ),
}


class WatchLiveMmTests(unittest.TestCase):
    def test_format_amount_humanizes_btc(self) -> None:
        self.assertEqual(
            watch_live_mm.format_amount("100000", ASSETS["nep141:btc.omft.near"]),
            "0.001 BTC",
        )

    def test_format_amount_humanizes_eure(self) -> None:
        self.assertEqual(
            watch_live_mm.format_amount("122753877246000000000", ASSETS["nep141:eure"]),
            "122.75387725 EURe",
        )

    def test_format_decimal_trims_trailing_zeroes(self) -> None:
        self.assertEqual(watch_live_mm.format_decimal(Decimal("60.00000000")), "60")

    def test_render_quote_row_formats_assets(self) -> None:
        row = {
            "ingested_at": "2026-04-02 14:00:00+00",
            "quote_id": "quote-1",
            "asset_in": "nep141:eure",
            "asset_out": "nep141:btc.omft.near",
            "request_kind": "exact_in",
            "amount_in": "122753877246000000000",
            "amount_out": "",
            "min_deadline_ms": "15000",
        }
        rendered = watch_live_mm.render_quote_row(row, ASSETS)
        self.assertIn("QUOTE", rendered)
        self.assertIn("EURe->BTC", rendered)
        self.assertIn("122.75387725 EURe", rendered)

    def test_render_decision_row_formats_inventory(self) -> None:
        row = {
            "ingested_at": "2026-04-02 14:00:01+00",
            "quote_id": "quote-2",
            "direction": "eure_to_btc",
            "decision": "rejected",
            "decision_reason": "insufficient_inventory",
            "gross_edge_pct": "2.000000",
            "eure_notional": "16.246379",
            "inventory_asset": "nep141:btc.omft.near",
            "inventory_available": "100000",
            "inventory_required": "1592145",
        }
        rendered = watch_live_mm.render_decision_row(row, ASSETS)
        self.assertIn("DECISION", rendered)
        self.assertIn("insufficient_inventory", rendered)
        self.assertIn("0.001 BTC", rendered)

    def test_select_new_rows_returns_oldest_first_and_marks_seen(self) -> None:
        seen = {"existing"}
        rows = [
            {"event_id": "newer"},
            {"event_id": "middle"},
            {"event_id": "existing"},
        ]
        fresh = watch_live_mm.select_new_rows(rows, seen)
        self.assertEqual([row["event_id"] for row in fresh], ["middle", "newer"])
        self.assertEqual(seen, {"existing", "middle", "newer"})

    def test_current_state_fingerprint_includes_portfolio_metrics(self) -> None:
        responses = {
            "near-intents-ingest": {
                "ingest": {
                    "last_matching_quote_at": "2026-04-02T20:17:44.623Z",
                    "published_count": 7,
                }
            },
            "inventory-sync": {
                "last_snapshot": {
                    "spendable": {
                        "nep141:btc.omft.near": "137014",
                        "nep141:eure": "38999978799978799978",
                    }
                }
            },
            "history-writer": {
                "latest_portfolio_metrics": {
                    "trade_pnl_eure": "0.391183707978799978",
                    "mark_to_market_pnl_eure": "0.497413887978799978",
                }
            },
            "strategy-engine": {
                "armed": False,
                "latest_decision": {
                    "decision_reason": "actionable",
                    "quote_id": "quote-1",
                },
            },
            "trade-executor": {
                "armed": False,
                "signer_registered": True,
            },
        }

        with mock.patch.object(
            watch_live_mm,
            "fetch_service_state",
            side_effect=lambda *, namespace, deployment: responses[deployment],
        ):
            state = watch_live_mm.current_state_fingerprint(namespace="unrip", assets=ASSETS)

        self.assertEqual(state["trade_pnl_eure"], "0.391183707978799978")
        self.assertEqual(state["mark_to_market_pnl_eure"], "0.497413887978799978")
        self.assertEqual(state["btc_spendable"], "0.00137014 BTC")
        self.assertEqual(state["eure_spendable"], "38.9999788 EURe")


if __name__ == "__main__":
    unittest.main()