"""Versioned Pattern Catalog tests (T02): round-trip, dedup, idempotent upsert."""

import os
import sys

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from session_memory.curate.catalog import (  # noqa: E402
    ADDED,
    UNCHANGED,
    UPDATED,
    VERSIONED,
    Catalog,
)
from session_memory.curate.schema import (  # noqa: E402
    Provenance,
    Resolution,
    Scope,
    SolutionPattern,
)


def _pattern(src="success:clean_pass:outcome", problem="ran tests, clean finish"):
    return SolutionPattern(
        id=SolutionPattern.make_id(src),
        name="Run tests before declaring success",
        version="1.0.0",
        polarity="success",
        problem=problem,
        resolutions=[Resolution(summary="run the suite")],
        scope=Scope(flavors=["claude", "grok"]),
        provenance=Provenance(source_key=src, evidence={"frequency": 18}),
    )


def test_add_then_load_round_trips(tmp_path):
    cat = Catalog(str(tmp_path))
    assert cat.upsert(_pattern()) == ADDED
    loaded = cat.load(SolutionPattern.make_id("success:clean_pass:outcome"))
    assert loaded is not None
    assert loaded.problem == "ran tests, clean finish"
    assert loaded.created_at and loaded.updated_at
    assert [p.id for p in cat.list()] == [loaded.id]


def test_resave_identical_is_noop(tmp_path):
    cat = Catalog(str(tmp_path))
    cat.upsert(_pattern())
    assert cat.upsert(_pattern()) == UNCHANGED
    # version not bumped, no history written
    assert cat.load(_pattern().id).version == "1.0.0"
    assert cat.history(_pattern().id) == []


def test_dedup_on_source_key(tmp_path):
    cat = Catalog(str(tmp_path))
    cat.upsert(_pattern())
    cat.upsert(_pattern())  # same source key -> same id -> one file
    assert len(cat.list()) == 1


def test_content_change_bumps_version_and_archives(tmp_path):
    cat = Catalog(str(tmp_path))
    cat.upsert(_pattern())
    assert cat.upsert(_pattern(problem="now with more nuance")) == VERSIONED
    current = cat.load(_pattern().id)
    assert current.version == "1.0.1"
    assert current.problem == "now with more nuance"
    hist = cat.history(_pattern().id)
    assert len(hist) == 1
    assert hist[0]["version"] == "1.0.0"
    assert hist[0]["status"] == "superseded"


def test_status_only_change_updates_without_bump(tmp_path):
    cat = Catalog(str(tmp_path))
    cat.upsert(_pattern())
    p = _pattern()
    p.status = "approved"
    p.distribution_ready = True
    assert cat.upsert(p) == UPDATED
    current = cat.load(p.id)
    assert current.status == "approved"
    assert current.distribution_ready is True
    assert current.version == "1.0.0"  # metadata change, no bump
    assert cat.history(p.id) == []