"""Tests for 3-tier triage escalation logic (Phase Triage Quality).

The actual LLM calls are gated by ``shutil.which('claude')`` and can't be
exercised in CI without the CLI, so we mock the tier functions directly
and verify the control-flow (escalation routing, discard vs human, project
misattribution, metadata update).
"""

from __future__ import annotations

import sys
from pathlib import Path
from unittest import mock

import pytest

# Import the script as a module for unit testing
_SCRIPTS = str(Path(__file__).resolve().parent.parent / "scripts")
if _SCRIPTS not in sys.path:
    sys.path.insert(0, _SCRIPTS)

import auto_triage  # noqa: E402


@pytest.fixture(autouse=True)
def reset_thresholds(monkeypatch):
    """Make sure env-var overrides don't leak between tests."""
    monkeypatch.setattr(auto_triage, "AUTO_PROMOTE_MIN_CONFIDENCE", 0.8)
    monkeypatch.setattr(auto_triage, "ESCALATION_CONFIDENCE_THRESHOLD", 0.75)
    monkeypatch.setattr(auto_triage, "TIER3_ACTION", "discard")
    monkeypatch.setattr(auto_triage, "TIER1_MODEL", "sonnet")
    monkeypatch.setattr(auto_triage, "TIER2_MODEL", "opus")


def test_parse_verdict_captures_suggested_project():
    raw = '{"verdict": "promote", "confidence": 0.9, "reason": "clear", "suggested_project": "p04-gigabit"}'
    v = auto_triage.parse_verdict(raw)
    assert v["verdict"] == "promote"
    assert v["suggested_project"] == "p04-gigabit"


def test_parse_verdict_defaults_suggested_project_to_empty():
    raw = '{"verdict": "reject", "confidence": 0.9, "reason": "dup"}'
    v = auto_triage.parse_verdict(raw)
    assert v["suggested_project"] == ""


def test_high_confidence_tier1_promote_no_escalation():
    """Tier 1 confident promote → no tier 2 call."""
    cand = {"id": "m1", "content": "x", "memory_type": "knowledge", "project": "p-test"}

    with mock.patch("auto_triage.triage_one") as t1, \
         mock.patch("auto_triage.triage_escalation") as t2, \
         mock.patch("auto_triage.api_post"), \
         mock.patch("auto_triage._apply_metadata_update"):
        t1.return_value = {
            "verdict": "promote", "confidence": 0.95, "reason": "clear",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        action, _ = auto_triage.process_candidate(
            cand, "http://fake", {"p-test": []}, {"p-test": []},
            {"p-test": []}, dry_run=False,
        )
        assert action == "promote"
        t2.assert_not_called()


def test_high_confidence_tier1_reject_no_escalation():
    cand = {"id": "m1", "content": "x", "memory_type": "knowledge", "project": "p-test"}

    with mock.patch("auto_triage.triage_one") as t1, \
         mock.patch("auto_triage.triage_escalation") as t2, \
         mock.patch("auto_triage.api_post"):
        t1.return_value = {
            "verdict": "reject", "confidence": 0.9, "reason": "duplicate",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        action, _ = auto_triage.process_candidate(
            cand, "http://fake", {"p-test": []}, {"p-test": []},
            {"p-test": []}, dry_run=False,
        )
        assert action == "reject"
        t2.assert_not_called()


def test_low_confidence_escalates_to_tier2():
    """Tier 1 low confidence → tier 2 is consulted."""
    cand = {"id": "m1", "content": "x", "memory_type": "knowledge", "project": "p-test"}

    with mock.patch("auto_triage.triage_one") as t1, \
         mock.patch("auto_triage.triage_escalation") as t2, \
         mock.patch("auto_triage.api_post"), \
         mock.patch("auto_triage._apply_metadata_update"):
        t1.return_value = {
            "verdict": "promote", "confidence": 0.6, "reason": "maybe",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        t2.return_value = {
            "verdict": "promote", "confidence": 0.9, "reason": "opus agrees",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        action, note = auto_triage.process_candidate(
            cand, "http://fake", {"p-test": []}, {"p-test": []},
            {"p-test": []}, dry_run=False,
        )
        assert action == "promote"
        assert "opus" in note
        t2.assert_called_once()


def test_needs_human_tier1_always_escalates():
    cand = {"id": "m1", "content": "x", "memory_type": "knowledge", "project": "p-test"}

    with mock.patch("auto_triage.triage_one") as t1, \
         mock.patch("auto_triage.triage_escalation") as t2, \
         mock.patch("auto_triage.api_post"):
        t1.return_value = {
            "verdict": "needs_human", "confidence": 0.5, "reason": "uncertain",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        t2.return_value = {
            "verdict": "reject", "confidence": 0.88, "reason": "opus decided",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        action, _ = auto_triage.process_candidate(
            cand, "http://fake", {"p-test": []}, {"p-test": []},
            {"p-test": []}, dry_run=False,
        )
        assert action == "reject"
        t2.assert_called_once()


def test_tier2_uncertain_leads_to_discard_by_default(monkeypatch):
    cand = {"id": "m1", "content": "x", "memory_type": "knowledge", "project": "p-test"}
    monkeypatch.setattr(auto_triage, "TIER3_ACTION", "discard")

    with mock.patch("auto_triage.triage_one") as t1, \
         mock.patch("auto_triage.triage_escalation") as t2, \
         mock.patch("auto_triage.api_post") as api_post:
        t1.return_value = {
            "verdict": "needs_human", "confidence": 0.4, "reason": "unclear",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        t2.return_value = {
            "verdict": "needs_human", "confidence": 0.5, "reason": "still unclear",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        action, _ = auto_triage.process_candidate(
            cand, "http://fake", {"p-test": []}, {"p-test": []},
            {"p-test": []}, dry_run=False,
        )
        assert action == "discard"
        # Should have called reject on the API
        api_post.assert_called_once()
        assert "reject" in api_post.call_args.args[1]


def test_tier2_uncertain_goes_to_human_when_configured(monkeypatch):
    cand = {"id": "m1", "content": "x", "memory_type": "knowledge", "project": "p-test"}
    monkeypatch.setattr(auto_triage, "TIER3_ACTION", "human")

    with mock.patch("auto_triage.triage_one") as t1, \
         mock.patch("auto_triage.triage_escalation") as t2, \
         mock.patch("auto_triage.api_post") as api_post:
        t1.return_value = {
            "verdict": "needs_human", "confidence": 0.4, "reason": "unclear",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        t2.return_value = {
            "verdict": "needs_human", "confidence": 0.5, "reason": "still unclear",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        action, _ = auto_triage.process_candidate(
            cand, "http://fake", {"p-test": []}, {"p-test": []},
            {"p-test": []}, dry_run=False,
        )
        assert action == "human"
        # Should NOT have touched the API — leave candidate in queue
        api_post.assert_not_called()


def test_dry_run_does_not_call_api():
    cand = {"id": "m1", "content": "x", "memory_type": "knowledge", "project": "p-test"}

    with mock.patch("auto_triage.triage_one") as t1, \
         mock.patch("auto_triage.api_post") as api_post:
        t1.return_value = {
            "verdict": "promote", "confidence": 0.9, "reason": "clear",
            "domain_tags": [], "valid_until": "", "suggested_project": "",
        }
        action, _ = auto_triage.process_candidate(
            cand, "http://fake", {"p-test": []}, {"p-test": []},
            {"p-test": []}, dry_run=True,
        )
        assert action == "promote"
        api_post.assert_not_called()


def test_misattribution_flagged_when_suggestion_differs(capsys):
    cand = {"id": "m1", "content": "x", "memory_type": "knowledge", "project": "p04-gigabit"}

    with mock.patch("auto_triage.triage_one") as t1, \
         mock.patch("auto_triage.api_post"), \
         mock.patch("auto_triage._apply_metadata_update"):
        t1.return_value = {
            "verdict": "promote", "confidence": 0.9, "reason": "clear",
            "domain_tags": [], "valid_until": "",
            "suggested_project": "p05-interferometer",
        }
        auto_triage.process_candidate(
            cand, "http://fake",
            {"p04-gigabit": [], "p05-interferometer": []},
            {"p04-gigabit": [], "p05-interferometer": []},
            {"p04-gigabit": [], "p05-interferometer": []},
            dry_run=True,
        )
    out = capsys.readouterr().out
    assert "misattribution" in out
    assert "p05-interferometer" in out