"""Issue B — wikilinks with redlinks + cross-project resolution."""

import pytest
from fastapi.testclient import TestClient

from atocore.engineering.service import (
    create_entity,
    init_engineering_schema,
)
from atocore.engineering.wiki import (
    _resolve_wikilink,
    _wikilink_transform,
    render_entity,
    render_new_entity_form,
    render_project,
)
from atocore.main import app
from atocore.models.database import init_db


@pytest.fixture
def env(tmp_data_dir, tmp_path, monkeypatch):
    registry_path = tmp_path / "test-registry.json"
    registry_path.write_text('{"projects": []}', encoding="utf-8")
    monkeypatch.setenv("ATOCORE_PROJECT_REGISTRY_PATH", str(registry_path))
    from atocore import config
    config.settings = config.Settings()
    init_db()
    init_engineering_schema()
    yield tmp_data_dir


def test_resolve_wikilink_same_project_is_live(env):
    tower = create_entity(entity_type="component", name="Tower", project="p05")
    href, cls, _ = _resolve_wikilink("Tower", current_project="p05")
    assert href == f"/wiki/entities/{tower.id}"
    assert cls == "wikilink"


def test_resolve_wikilink_missing_is_redlink(env):
    href, cls, suffix = _resolve_wikilink("DoesNotExist", current_project="p05")
    assert "/wiki/new" in href
    assert "name=DoesNotExist" in href
    assert cls == "redlink"


def test_resolve_wikilink_cross_project_indicator(env):
    other = create_entity(entity_type="material", name="Invar", project="p06")
    href, cls, suffix = _resolve_wikilink("Invar", current_project="p05")
    assert href == f"/wiki/entities/{other.id}"
    assert "wikilink-cross" in cls
    assert "in p06" in suffix


def test_resolve_wikilink_case_insensitive(env):
    tower = create_entity(entity_type="component", name="Tower", project="p05")
    href, cls, _ = _resolve_wikilink("tower", current_project="p05")
    assert href == f"/wiki/entities/{tower.id}"
    assert cls == "wikilink"


def test_transform_replaces_brackets_with_anchor(env):
    create_entity(entity_type="component", name="Base Plate", project="p05")
    out = _wikilink_transform("See [[Base Plate]] for details.", current_project="p05")
    assert '<a href="/wiki/entities/' in out
    assert 'class="wikilink"' in out
    assert "[[Base Plate]]" not in out


def test_transform_redlink_for_missing(env):
    out = _wikilink_transform("Mentions [[Ghost]] nowhere.", current_project="p05")
    assert 'class="redlink"' in out
    assert "/wiki/new?name=Ghost" in out


def test_transform_alias_syntax(env):
    tower = create_entity(entity_type="component", name="Tower", project="p05")
    out = _wikilink_transform("The [[Tower|big tower]] is tall.", current_project="p05")
    assert f'href="/wiki/entities/{tower.id}"' in out
    assert ">big tower<" in out


def test_render_entity_description_has_redlink(env):
    a = create_entity(
        entity_type="component",
        name="EntityA",
        project="p05",
        description="This depends on [[MissingPart]] which does not exist.",
    )
    html = render_entity(a.id)
    assert 'class="redlink"' in html
    assert "/wiki/new?name=MissingPart" in html


def test_regression_redlink_becomes_live_once_target_created(env):
    a = create_entity(
        entity_type="component",
        name="EntityA",
        project="p05",
        description="Connected to [[EntityB]].",
    )
    # Pre-create: redlink.
    html_before = render_entity(a.id)
    assert 'class="redlink"' in html_before

    b = create_entity(entity_type="component", name="EntityB", project="p05")
    html_after = render_entity(a.id)
    assert 'class="redlink"' not in html_after
    assert f"/wiki/entities/{b.id}" in html_after


def test_new_entity_form_prefills_name():
    html = render_new_entity_form(name="FreshEntity", project="p05")
    assert 'value="FreshEntity"' in html
    assert 'value="p05"' in html
    assert "entity_type" in html
    assert 'method="post"' not in html  # JS-driven


def test_wiki_new_route_renders(env):
    client = TestClient(app)
    r = client.get("/wiki/new?name=NewThing&project=p05")
    assert r.status_code == 200
    assert "NewThing" in r.text
    assert "Create entity" in r.text


def test_wiki_new_url_escapes_special_chars(env):
    # "steel (likely)" is the kind of awkward name AKC produces
    href, cls, _ = _resolve_wikilink("steel (likely)", current_project="p05")
    assert cls == "redlink"
    assert "name=steel%20%28likely%29" in href