"""S5.3 CLI-parity tests for ``run.main()`` single-project flags (Steps 2/4/5).

In-process ``run.main([argv])`` + rc + ``capsys`` substring asserts (never subprocess),
mirroring ``tests/test_live_dry_run.py``. Every arm is offline — it stops before the first
model call (``debate.run``), so no socket/network is exercised (brief NFR). The bundle
fixture ``shared/examples/bygg-energi-mikro`` (project ``BYGG-KONTOR-NORD``) supplies citable
content so the dry-run reaches its offline return.
"""

from __future__ import annotations

import json
from pathlib import Path

import pytest

from portfolio_optimiser import run
from portfolio_optimiser.dimension import Dimension
from portfolio_optimiser.ledger import LedgerEntry, SavingsLedger
from portfolio_optimiser.run import run_project
from portfolio_optimiser.verdicts import ProposalFeatures, capture_verdict, write_verdict

BUNDLE_DIR = Path(__file__).resolve().parents[1] / "shared" / "examples" / "bygg-energi-mikro"
_PID = "BYGG-KONTOR-NORD"


@pytest.fixture(autouse=True)
def _isolate_model_env(monkeypatch: pytest.MonkeyPatch) -> None:
    """Hermetic env (verbatim from ``test_live_dry_run.py``): clear the S4.1 out-of-tree overrides
    so these CLI assertions read the BUNDLED map/config, not the operator's Foundry environment."""
    monkeypatch.delenv("PORTFOLIO_MODEL_MAP", raising=False)
    monkeypatch.delenv("PORTFOLIO_FOUNDRY_PROJECT_ENDPOINT", raising=False)


def _write_dimension(tmp_path: Path) -> Path:
    """A valid dimension scope config on disk (loaded fail-fast by ``load_dimension``)."""
    dim = Dimension(
        id="energi",
        label="Energi",
        allowed_measure_types=frozenset({"energy_efficiency"}),
    )
    p = tmp_path / "dim.json"
    p.write_text(dim.model_dump_json(), encoding="utf-8")
    return p


# --- Step 2: --dimension-config / --outbox-dir / --run-id wiring + structured refusal -------------


def test_dimension_config_flag_parses_offline(tmp_path, capsys) -> None:
    """(a) ``--dimension-config <valid>`` + ``--live-dry-run`` → rc 0 (flag parsed, loader invoked,
    offline — stops before any model call)."""
    rc = run.main(
        [
            _PID,
            "--docs-dir",
            str(BUNDLE_DIR),
            "--bundle-dir",
            str(BUNDLE_DIR),
            "--dimension-config",
            str(_write_dimension(tmp_path)),
            "--live-dry-run",
        ]
    )
    assert rc == 0
    assert "LIVE-DRY-RUN OK" in capsys.readouterr().out


def test_outbox_dir_with_run_id_writes_runconfig_offline(tmp_path) -> None:
    """(b) ``--outbox-dir`` + ``--run-id`` + ``--live-dry-run`` → rc 0 AND ``<tmp>/r1-runconfig.json``
    written offline (via ``write_run_config``, before the dry-run return)."""
    outbox = tmp_path / "out"
    outbox.mkdir()
    rc = run.main(
        [
            _PID,
            "--docs-dir",
            str(BUNDLE_DIR),
            "--bundle-dir",
            str(BUNDLE_DIR),
            "--outbox-dir",
            str(outbox),
            "--run-id",
            "r1",
            "--live-dry-run",
        ]
    )
    assert rc == 0
    assert (outbox / "r1-runconfig.json").is_file()


def test_outbox_dir_without_run_id_refuses(tmp_path, capsys) -> None:
    """(c) RED guard: ``--outbox-dir`` WITHOUT ``--run-id`` → rc 1 structured refusal. ``run_project``'s
    step-0 fail-fast (no wall-clock default) surfaces through the CLI refusal wrapper, no traceback."""
    outbox = tmp_path / "out"
    outbox.mkdir()
    rc = run.main(
        [
            _PID,
            "--docs-dir",
            str(BUNDLE_DIR),
            "--outbox-dir",
            str(outbox),
            "--live-dry-run",
        ]
    )
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


def test_dimension_config_missing_file_refuses(capsys) -> None:
    """(d) ``--dimension-config <nonexistent>`` → rc 1 structured refusal. ``load_dimension`` raises
    ``FileNotFoundError``, caught by the WIDENED dry-run handler (not just ``ValueError`` — Pass-2 #1)."""
    rc = run.main(
        [
            _PID,
            "--docs-dir",
            str(BUNDLE_DIR),
            "--dimension-config",
            "/nonexistent-dim-config.json",
            "--live-dry-run",
        ]
    )
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


# --- Step 4: mode-exclusivity refusals + backward-compat pin -------------------------------------


def _met_portfolio_goal(tmp_path: Path) -> tuple[Path, Path]:
    """A portfolio-hard goal (1 øre) already met by a 1-øre ledger — so any RED (pre-refusal)
    fall-through into the portfolio dispatch stops OFFLINE at the goal check (no client, no socket)."""
    goals = tmp_path / "goals.json"
    goals.write_text('{"portfolio": {"absolute_ore": 1, "mode": "hard"}}', encoding="utf-8")
    led = SavingsLedger()
    led.add_realized(
        LedgerEntry(
            project_id="FV42-GSV-E1",
            dimension="energi",
            candidate_identity="c1",
            amount_ore=1,
            verdict_id="v1",
            provenance="x",
        )
    )
    ledger = tmp_path / "ledger.json"
    led.save(str(ledger))
    return goals, ledger


def test_goals_without_portfolio_refuses(tmp_path, capsys) -> None:
    """(a) ``--goals`` without ``--portfolio`` → rc 1 refusal (the flag belongs to portfolio mode).
    ``--live-dry-run`` keeps the RED (pre-refusal) fall-through offline."""
    goals = tmp_path / "goals.json"
    goals.write_text('{"portfolio": {"absolute_ore": 1, "mode": "hard"}}', encoding="utf-8")
    rc = run.main(
        [
            _PID,
            "--docs-dir",
            str(BUNDLE_DIR),
            "--bundle-dir",
            str(BUNDLE_DIR),
            "--goals",
            str(goals),
            "--live-dry-run",
        ]
    )
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


def test_ledger_without_portfolio_refuses(tmp_path, capsys) -> None:
    """(a') ``--ledger`` without ``--portfolio`` → rc 1 refusal."""
    ledger = tmp_path / "ledger.json"
    ledger.write_text("[]", encoding="utf-8")
    rc = run.main(
        [
            _PID,
            "--docs-dir",
            str(BUNDLE_DIR),
            "--bundle-dir",
            str(BUNDLE_DIR),
            "--ledger",
            str(ledger),
            "--live-dry-run",
        ]
    )
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


def test_portfolio_with_single_project_flag_refuses(tmp_path, capsys) -> None:
    """(c) ``--portfolio`` combined with a single-project-only flag (``--outbox-dir``) → rc 1 refusal
    naming the offending flag. The met portfolio goal keeps the RED fall-through offline."""
    goals, ledger = _met_portfolio_goal(tmp_path)
    rc = run.main(
        [
            "--portfolio",
            "--goals",
            str(goals),
            "--ledger",
            str(ledger),
            "--outbox-dir",
            str(tmp_path / "ob"),
        ]
    )
    assert rc == 1
    err = capsys.readouterr().err.lower()
    assert "refused" in err
    assert "--outbox-dir" in err


def test_single_project_mode_without_docs_dir_refuses(capsys) -> None:
    """(b) single-project mode with a pid but no ``--docs-dir`` → rc 1 refusal (the Step-3
    compensating guard for the relaxed argparse ``required=``)."""
    rc = run.main([_PID])
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


def test_single_project_mode_without_pid_refuses(capsys) -> None:
    """(b') single-project mode with ``--docs-dir`` but no PROJECT_ID → rc 1 refusal."""
    rc = run.main(["--docs-dir", str(BUNDLE_DIR)])
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


def test_legacy_single_project_invocation_still_succeeds(capsys) -> None:
    """Backward-compat pin: the legacy invocation (positional pid + ``--docs-dir`` + ``--bundle-dir``
    + ``--live-dry-run``) still returns rc 0 — the existing CLI contract survives Step 3's
    ``nargs='?'``/``required`` relaxation."""
    rc = run.main(
        [_PID, "--docs-dir", str(BUNDLE_DIR), "--bundle-dir", str(BUNDLE_DIR), "--live-dry-run"]
    )
    assert rc == 0
    assert "LIVE-DRY-RUN OK" in capsys.readouterr().out


# --- Step 5: confirm coverage for the already-wired flags (never re-wired; run.py untouched) ------


def test_verdict_dir_ingested_at_main_level_offline(tmp_path, capsys) -> None:
    """Step 5 (SC2 second half): ``--verdict-dir`` is exercised at ``main()`` level — the previously
    untested already-wired flag. The async inbox is ingested (``load_verdicts_from_dir``,
    ``run.py:287``) BEFORE the dry-run cut (``run.py:335``), so a dropped verdict is threaded through
    ``main()`` offline without raising. ``--bundle-dir``'s ``main()``-level coverage already exists
    in ``tests/test_live_dry_run.py:32-49`` and is NOT re-tested here (never re-wired)."""
    inbox = tmp_path / "inbox"
    feats = ProposalFeatures(
        affected_codes=frozenset({"ENERGI-TOTAL-EL"}),
        measure_type="energy_efficiency",
        claimed_saving_nok=30000.0,
        description="LED-retrofit",
    )
    write_verdict(str(inbox), capture_verdict(feats, "approved", "expert reviewed (sim)"))
    rc = run.main(
        [
            _PID,
            "--docs-dir",
            str(BUNDLE_DIR),
            "--bundle-dir",
            str(BUNDLE_DIR),
            "--verdict-dir",
            str(inbox),
            "--live-dry-run",
        ]
    )
    assert rc == 0
    assert "LIVE-DRY-RUN OK" in capsys.readouterr().out


# --- S5.4: --report / --json read-only value-report mode ------------------------------------------


def _report_ledger(tmp_path: Path) -> Path:
    """A saved ledger with >=2 projects and one cross-dimension overlap (``c-a`` under both
    ``energi`` and ``asfalt`` in FV42 -> counted once, flagged), for the value-report arms.
    portfolio_total = 1234567 (overlap once) + 500000 = 1734567 øre."""
    led = SavingsLedger()
    led.add_realized(
        LedgerEntry(
            project_id="FV42-GSV-E1",
            dimension="energi",
            candidate_identity="c-a",
            amount_ore=1234567,
            verdict_id="v1",
            provenance="p1",
        )
    )
    led.add_realized(
        LedgerEntry(
            project_id="FV42-GSV-E1",
            dimension="asfalt",
            candidate_identity="c-a",
            amount_ore=1234567,
            verdict_id="v2",
            provenance="p2",  # cross-dimension overlap on (FV42-GSV-E1, c-a)
        )
    )
    led.add_realized(
        LedgerEntry(
            project_id="RV13-RAS-TP",
            dimension="energi",
            candidate_identity="c-b",
            amount_ore=500000,
            verdict_id="v3",
            provenance="p3",
        )
    )
    p = tmp_path / "ledger.json"
    led.save(str(p))
    return p


def test_report_prints_table_rc0(tmp_path, capsys) -> None:
    """SC3: ``--report --ledger <f>`` -> rc 0; stdout carries a per-project row + the portfolio-total
    NOK string. Dispatched FIRST, so no PROJECT_ID/--docs-dir is needed (no single-project refusal)."""
    rc = run.main(["--report", "--ledger", str(_report_ledger(tmp_path))])
    out = capsys.readouterr().out
    assert rc == 0
    assert "FV42-GSV-E1" in out  # a per-project row
    assert "17\xa0345,67\xa0kr" in out  # portfolio total 1734567 øre


def test_report_json_rc0_parses_rollup(tmp_path, capsys) -> None:
    """SC4: ``--report ... --json`` -> rc 0 and ``json.loads(stdout)`` yields the roll-up
    (int portfolio total, per_project dict, overlaps as JSON lists, provenance list)."""
    rc = run.main(["--report", "--ledger", str(_report_ledger(tmp_path)), "--json"])
    out = capsys.readouterr().out
    assert rc == 0
    payload = json.loads(out)
    assert payload["portfolio_total_ore"] == 1734567
    assert payload["per_project"]["FV42-GSV-E1"] == 1234567
    assert isinstance(payload["overlaps"], list)
    assert ["FV42-GSV-E1", "c-a"] in payload["overlaps"]  # tuple serialized as a JSON array
    assert isinstance(payload["provenance"], list)
    assert len(payload["provenance"]) == 3  # one ProvenanceLine per ledger entry


def test_report_missing_ledger_file_rc1(capsys) -> None:
    """SC5: ``--report --ledger /nonexistent`` -> rc 1, stderr non-empty, NO table on stdout (a load
    failure must never masquerade as a real zero-savings result)."""
    rc = run.main(["--report", "--ledger", "/nonexistent-ledger.json"])
    cap = capsys.readouterr()
    assert rc == 1
    assert cap.err.strip()
    assert cap.out == ""


def test_report_malformed_ledger_rc1(tmp_path, capsys) -> None:
    """SC5: a malformed-row ledger file -> rc 1 (``ValidationError`` surfaced as a refusal)."""
    bad = tmp_path / "bad.json"
    bad.write_text('[{"project_id": "P1"}]', encoding="utf-8")  # missing required fields
    rc = run.main(["--report", "--ledger", str(bad)])
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


def test_report_empty_dict_ledger_rc1(tmp_path, capsys) -> None:
    """SC5 masquerade guard: a valid-JSON ``{}`` ledger must NOT load as an empty ledger and print a
    misleading ``0,00 kr`` at rc 0 — a malformed file masquerading as a real zero-savings result is
    the exact failure SC5's fail-fast refusal exists to prevent."""
    bad = tmp_path / "empty-obj.json"
    bad.write_text("{}", encoding="utf-8")
    rc = run.main(["--report", "--ledger", str(bad)])
    cap = capsys.readouterr()
    assert rc == 1
    assert "refused" in cap.err.lower()
    assert cap.out == ""  # no table, no "0,00 kr"


def test_report_nonlist_ledger_rc1_no_traceback(tmp_path, capsys) -> None:
    """SC5: a valid-JSON but wrong-shape ledger (bare scalar / object-with-keys) -> rc 1 refusal, NOT
    an uncaught ``TypeError`` traceback ('rc 1, no traceback')."""
    bad = tmp_path / "scalar.json"
    bad.write_text("42", encoding="utf-8")
    rc = run.main(["--report", "--ledger", str(bad)])
    cap = capsys.readouterr()
    assert rc == 1
    assert "refused" in cap.err.lower()
    assert "Traceback" not in cap.err
    assert cap.out == ""


def test_report_without_ledger_rc1_no_traceback(capsys) -> None:
    """Major-#1 guard: ``--report`` with no ``--ledger`` -> rc 1 with a 'requires --ledger' message
    and no traceback (guards ``SavingsLedger.load(None)`` -> ``Path(None)`` TypeError)."""
    rc = run.main(["--report"])
    err = capsys.readouterr().err
    assert rc == 1
    assert "requires --ledger" in err
    assert "Traceback" not in err


def test_report_with_portfolio_refuses(tmp_path, capsys) -> None:
    """Major-#3 partition: ``--report`` + ``--portfolio`` -> rc 1 (mode-exclusive)."""
    rc = run.main(["--report", "--portfolio", "--ledger", str(_report_ledger(tmp_path))])
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


def test_report_with_goals_refuses(tmp_path, capsys) -> None:
    """Major-#3 / P2-2 allowlist: ``--report`` + ``--goals`` (a config flag) -> rc 1. The allowlist
    rejects config flags too, not just the two mode flags — else ``--goals`` would be silently
    dropped, whereas bare ``--goals`` is refused (adding ``--report`` must not suppress a refusal)."""
    goals = tmp_path / "goals.json"
    goals.write_text('{"portfolio": {"absolute_ore": 1, "mode": "hard"}}', encoding="utf-8")
    rc = run.main(["--report", "--goals", str(goals), "--ledger", str(_report_ledger(tmp_path))])
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


def test_json_without_report_refuses(tmp_path, capsys) -> None:
    """Major-#3 partition: ``--json`` without ``--report`` -> rc 1 (a stray --json is never silently
    ignored)."""
    rc = run.main(["--json", "--ledger", str(_report_ledger(tmp_path))])
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


# --- S3.1 SC6: --semantic-retrieval opt-in (default OFF) --------------------------------------

_ENERGY_REPLY = (
    '{"measure":"LED-retrofit av kontorbelysning","affected_items":'
    '[{"code":"ENERGI-TOTAL-EL","quantity":300000,"unit_cost":1.0}],"claimed_saving_nok":30000}'
)
_VERDICT_INPUT = {"decision": "approved", "rationale": "expert reviewed (sim)"}

# The marker lives in the RATIONALE, which is what ``format_fewshot`` emits into the prompt.
# "0.37" appears nowhere in the bundle (grep-verified), so its presence in a prompt can only have
# come through the ExpeL fold — it cannot be leaked by bundle context.
_TIE_MARKER = "realiseringsgrad=0.37"
_MARKER_ID = "zz-s31-run-marker"
_DISTRACTOR_ID = "aa-s31-run-distractor"


def _tied_pair_store():
    """Two verdicts that are structurally IDENTICAL to the bundle's candidate (similarity 1.0
    each), so the structural ranking can only separate them on ``id`` — and ``_MARKER_ID`` loses
    that tie. Only the cosine term can promote it.

    The bundle's own seed verdict is deliberately NOT included: its features are byte-identical to
    the query, making it a perfect cosine match that would win every hybrid ranking and so could
    never demonstrate a tie-break."""
    from portfolio_optimiser.verdicts import Verdict, VerdictStore, bundle_candidate_features

    query = bundle_candidate_features(str(BUNDLE_DIR))

    def tied(verdict_id: str, description: str, rationale: str) -> Verdict:
        return Verdict(
            id=verdict_id,
            proposal_features=ProposalFeatures(
                affected_codes=query.affected_codes,
                measure_type=query.measure_type,
                claimed_saving_nok=query.claimed_saving_nok,
                description=description,
            ),
            decision="approved",
            rationale=rationale,
        )

    return VerdictStore(
        verdicts=[
            tied(
                _DISTRACTOR_ID,
                "avvist forslag om reforhandling av renholdskontrakt i administrasjonsbygget",
                "ingen realiseringsdata for dette tiltaket",
            ),
            tied(
                _MARKER_ID,
                "LED-retrofit i kontorlokaler: 90 W armaturer erstattet med 40 W",
                f"tidligere LED-dom [{_TIE_MARKER}]",
            ),
        ]
    )


def _generation_prompts(sink: list[str]) -> list[str]:
    return [p for p in sink if "SavingsProposal" in p]


def test_semantic_retrieval_flag_parses_offline(capsys) -> None:
    """(a) the flag is accepted in single-project mode and the run still stops offline."""
    rc = run.main(
        [
            _PID,
            "--docs-dir",
            str(BUNDLE_DIR),
            "--bundle-dir",
            str(BUNDLE_DIR),
            "--semantic-retrieval",
            "--live-dry-run",
        ]
    )
    assert rc == 0
    assert "LIVE-DRY-RUN OK" in capsys.readouterr().out


def test_semantic_retrieval_is_not_refused_in_portfolio_mode(capsys) -> None:
    """The flag is valid in BOTH modes (like --dimension-config), so the portfolio partition must
    not name it. Probed via a run that IS refused for a different flag: the refusal lists
    ``--docs-dir`` and must NOT mention ``--semantic-retrieval``."""
    rc = run.main(["--portfolio", "--semantic-retrieval", "--docs-dir", str(BUNDLE_DIR)])
    err = capsys.readouterr().err
    assert rc == 1
    assert "--docs-dir" in err
    assert "--semantic-retrieval" not in err


def test_report_with_semantic_retrieval_is_refused(tmp_path, capsys) -> None:
    """--report is an ALLOWLIST: only --ledger/--json ride along. A silently-dropped
    --semantic-retrieval would break that partition."""
    ledger_file = tmp_path / "ledger.json"
    SavingsLedger(entries=[]).save(str(ledger_file))
    rc = run.main(["--report", "--ledger", str(ledger_file), "--semantic-retrieval"])
    assert rc == 1
    assert "refused" in capsys.readouterr().err.lower()


async def test_semantic_retrieval_on_swaps_the_fewshot_reaching_the_prompt(
    make_recording_client_factory,
) -> None:
    """(c) the substantive run-level proof: with ``semantic_retrieval=True`` and ``top_k=1``, the
    verdict that only cosine can surface is the one whose rationale reaches the hypothesis prompt.
    Drives the REAL Step-1 fold via the recording client — not ``--live-dry-run``, which returns
    before the fold."""
    factory, recorded = make_recording_client_factory(_ENERGY_REPLY)

    await run_project(
        _PID,
        "local",
        docs_dir=str(BUNDLE_DIR),
        bundle_dir=str(BUNDLE_DIR),
        verdict_input=_VERDICT_INPUT,
        store=_tied_pair_store(),
        client_factory=factory,
        top_k=1,
        semantic_retrieval=True,
    )

    gen_prompts = _generation_prompts(recorded)
    assert gen_prompts, "the generation call must have happened"
    assert any(_TIE_MARKER in p for p in gen_prompts), (
        "the cosine-surfaced verdict did not reach the hypothesis prompt — "
        "--semantic-retrieval is not installing the HybridRanker before the Step-1 fold"
    )
    assert any(_MARKER_ID in p for p in gen_prompts)


async def test_semantic_retrieval_off_leaves_the_structural_pick_in_the_prompt(
    make_recording_client_factory,
) -> None:
    """CAUSALITY CONTROL — the identical run with the flag OFF must carry the STRUCTURAL winner
    instead, and no marker. This is what makes the positive above load-bearing: the swap is caused
    by the flag, not by the fixture merely containing the marker."""
    factory, recorded = make_recording_client_factory(_ENERGY_REPLY)

    await run_project(
        _PID,
        "local",
        docs_dir=str(BUNDLE_DIR),
        bundle_dir=str(BUNDLE_DIR),
        verdict_input=_VERDICT_INPUT,
        store=_tied_pair_store(),
        client_factory=factory,
        top_k=1,
    )

    assert all(_TIE_MARKER not in p for p in recorded), (
        "the marker reached a prompt with --semantic-retrieval OFF — the default path is not the "
        "structural ranking, or the assertion is not load-bearing"
    )
    gen_prompts = _generation_prompts(recorded)
    assert any(_DISTRACTOR_ID in p for p in gen_prompts), (
        "the structural winner did not reach the prompt — the default fold is broken"
    )