"""The moment catalog — the vocabulary rules mount on (milestone 458 step 1).

What this pins is what a mount depends on: every name is well-formed and
resolvable, an unknown name is refused rather than stored, the catalog speaks
for any kind of work rather than only software, and both doors — the MCP tool
and the REST read — hand out the same catalog.
"""
import re

import pytest

from scribe.services import moments
from tests.helpers import FakeMCP

_NAME = re.compile(r"^[a-z]+\.[a-z]+$")


def test_the_catalog_is_not_empty():
    """The sweeps below are vacuous over an empty catalog (rule 167)."""
    assert len(moments.MOMENTS) >= 10


def test_every_moment_is_keyed_by_its_own_well_formed_name():
    for key, m in moments.MOMENTS.items():
        assert key == m.name, f"{key!r} is filed under a name it does not carry"
        assert _NAME.match(key), f"{key!r} is not <area>.<verb>"


def test_every_moment_says_what_it_means_and_how_it_is_reached():
    for m in moments.MOMENTS.values():
        assert m.means.strip() and m.reached_by.strip(), m.name
        assert "\n" not in m.means, f"{m.name}: `means` is one line"


def test_the_skill_family_is_not_a_catalog_entry():
    """A family is a shape, not a moment — no rule mounts on `skill.<name>`
    literally, and a catalog key starting with the prefix would shadow it."""
    assert not any(k.startswith(moments.SKILL_PREFIX) for k in moments.MOMENTS)


# Software-only vocabulary, the same guard the completion query carries. The
# moments are named for any work a person drives through an agent; the actions
# particular to one kind of work belong in the mappings, not in the meaning.
_DEV_ONLY = (r"\bCI\b", r"\bcommit", r"\bpull request", r"\bcode\b", r"\btest",
             r"\bgit\b", r"\brepo(s|sitor\w*)?\b", r"\bbranch", r"\bcompil", r"\bbuild\b")


@pytest.mark.parametrize("field", ["means", "reached_by"])
def test_the_catalog_assumes_no_particular_domain(field):
    found = {
        m.name: hits
        for m in [*moments.MOMENTS.values(), moments.SKILL_FAMILY]
        if (hits := [w for w in _DEV_ONLY
                     if re.search(w, getattr(m, field), re.IGNORECASE)])
    }
    assert not found, f"software-only vocabulary in `{field}`: {found}"


def test_the_guard_can_fail():
    assert re.search(_DEV_ONLY[1], "after the commit lands", re.IGNORECASE)


@pytest.mark.parametrize("name", list(moments.MOMENTS))
def test_every_catalog_moment_is_mountable(name):
    assert moments.require_moment(name) == name


@pytest.mark.parametrize("raw,clean", [
    ("  Work.Finish ", "work.finish"),
    ("skill.verification", "skill.verification"),
    ("skill.scribe:writing-plans", "skill.scribe:writing-plans"),
    ("skill.scribe-proc-release_notes", "skill.scribe-proc-release_notes"),
])
def test_a_name_is_normalised_before_it_is_judged(raw, clean):
    assert moments.require_moment(raw) == clean


@pytest.mark.parametrize("bad", [
    "work.finished", "finish", "", "skill.", "skill.two words", "work.",
])
def test_an_unknown_moment_is_refused_with_the_catalog(bad):
    """A typo stored as a mount never fires — the silent failure moments end."""
    with pytest.raises(ValueError) as exc:
        moments.require_moment(bad)
    assert "work.finish" in str(exc.value)
    assert moments.SKILL_FAMILY.name in str(exc.value)


def test_the_catalog_payload_carries_every_moment_and_the_family():
    data = moments.catalog()
    assert [m["name"] for m in data["moments"]] == list(moments.MOMENTS)
    assert data["total"] == len(moments.MOMENTS)
    assert data["families"][0]["prefix"] == moments.SKILL_PREFIX


async def test_the_tool_returns_the_catalog_with_this_installs_actions():
    from unittest.mock import AsyncMock, patch

    from scribe.mcp.tools import moments as tool

    by_moment = {"actions": {"work.change": []}, "removed_defaults": []}
    with patch.object(tool, "current_user_id", lambda: 7), \
         patch.object(tool.actions_svc, "actions_by_moment",
                      AsyncMock(return_value=by_moment)) as read:
        out = await tool.list_moments()
    read.assert_awaited_once_with(7)
    assert out["moments"] == moments.catalog()["moments"]
    assert out["actions"] == by_moment["actions"]
    assert out["removed_defaults"] == []


def test_the_tools_are_registered_and_classified():
    from scribe.mcp.server import _READ_ONLY_TOOLS, _WRITE_TOOLS
    from scribe.mcp.tools import moments as tool

    mcp = FakeMCP()
    tool.register(mcp)
    assert mcp.names == ["list_moments", "map_action", "unmap_action"]
    assert "list_moments" in _READ_ONLY_TOOLS
    assert {"map_action", "unmap_action"} <= _WRITE_TOOLS


def test_both_doors_read_one_catalog():
    """Rule 33 parity: the tool and the routes call the same services, so the
    session and the Settings view cannot name different moments or disagree
    about what a mapping does."""
    from scribe.mcp.tools import moments as tool
    from scribe.routes import retrieval as routes
    from scribe.services import moment_actions

    assert tool.moments_svc is moments
    assert routes.moments_svc is moments
    assert tool.actions_svc is moment_actions
    assert routes.moment_actions_svc is moment_actions