"""Tests for the Engineering Knowledge Layer."""

from atocore.engineering.service import (
    ENTITY_TYPES,
    RELATIONSHIP_TYPES,
    create_entity,
    create_relationship,
    get_entities,
    get_entity,
    get_entity_with_context,
    get_relationships,
    init_engineering_schema,
)
from atocore.models.database import init_db

import pytest


def test_create_and_get_entity(tmp_data_dir):
    init_db()
    init_engineering_schema()
    e = create_entity(
        entity_type="component",
        name="Pivot Pin",
        project="p04-gigabit",
        description="Lateral support pivot pin for M1 assembly",
        properties={"material": "GF-PTFE", "diameter_mm": 12},
    )
    assert e.entity_type == "component"
    assert e.name == "Pivot Pin"
    assert e.properties["material"] == "GF-PTFE"

    fetched = get_entity(e.id)
    assert fetched is not None
    assert fetched.name == "Pivot Pin"


def test_create_relationship(tmp_data_dir):
    init_db()
    init_engineering_schema()
    subsystem = create_entity("subsystem", "Lateral Support", project="p04-gigabit")
    component = create_entity("component", "Pivot Pin", project="p04-gigabit")

    rel = create_relationship(
        source_entity_id=subsystem.id,
        target_entity_id=component.id,
        relationship_type="contains",
    )
    assert rel.relationship_type == "contains"

    rels = get_relationships(subsystem.id, direction="outgoing")
    assert len(rels) == 1
    assert rels[0].target_entity_id == component.id


def test_entity_with_context(tmp_data_dir):
    init_db()
    init_engineering_schema()
    subsystem = create_entity("subsystem", "Lateral Support", project="p04-gigabit")
    pin = create_entity("component", "Pivot Pin", project="p04-gigabit")
    pad = create_entity("component", "PTFE Pad", project="p04-gigabit")
    material = create_entity("material", "GF-PTFE", project="p04-gigabit",
                             description="Glass-filled PTFE for thermal stability")

    create_relationship(subsystem.id, pin.id, "contains")
    create_relationship(subsystem.id, pad.id, "contains")
    create_relationship(pad.id, material.id, "uses_material")

    ctx = get_entity_with_context(subsystem.id)
    assert ctx is not None
    assert len(ctx["relationships"]) == 2
    assert pin.id in ctx["related_entities"]
    assert pad.id in ctx["related_entities"]


def test_filter_entities_by_type_and_project(tmp_data_dir):
    init_db()
    init_engineering_schema()
    create_entity("component", "Pin A", project="p04-gigabit")
    create_entity("component", "Pin B", project="p04-gigabit")
    create_entity("material", "Steel", project="p04-gigabit")
    create_entity("component", "Actuator", project="p06-polisher")

    components = get_entities(entity_type="component", project="p04-gigabit")
    assert len(components) == 2

    all_p04 = get_entities(project="p04-gigabit")
    assert len(all_p04) == 3

    polisher = get_entities(project="p06-polisher")
    assert len(polisher) == 1


def test_invalid_entity_type_raises(tmp_data_dir):
    init_db()
    init_engineering_schema()
    with pytest.raises(ValueError, match="Invalid entity type"):
        create_entity("spaceship", "Enterprise")


def test_invalid_relationship_type_raises(tmp_data_dir):
    init_db()
    init_engineering_schema()
    a = create_entity("component", "A")
    b = create_entity("component", "B")
    with pytest.raises(ValueError, match="Invalid relationship type"):
        create_relationship(a.id, b.id, "loves")


def test_entity_name_search(tmp_data_dir):
    init_db()
    init_engineering_schema()
    create_entity("component", "Vertical Support Pad")
    create_entity("component", "Lateral Support Bracket")
    create_entity("component", "Reference Frame")

    results = get_entities(name_contains="Support")
    assert len(results) == 2


# --- Phase 5: Entity promote/reject lifecycle + audit + canonicalization ---


def test_entity_project_canonicalization(tmp_data_dir):
    """Aliases resolve to canonical project_id on write (Phase 5)."""
    init_db()
    init_engineering_schema()
    # "p04" is a registered alias for p04-gigabit
    e = create_entity("component", "Test Component", project="p04")
    assert e.project == "p04-gigabit"


def test_promote_entity_candidate_to_active(tmp_data_dir):
    from atocore.engineering.service import promote_entity, get_entity

    init_db()
    init_engineering_schema()
    e = create_entity("requirement", "CTE tolerance", status="candidate")
    assert e.status == "candidate"

    assert promote_entity(e.id, actor="test-triage")
    e2 = get_entity(e.id)
    assert e2.status == "active"


def test_reject_entity_candidate(tmp_data_dir):
    from atocore.engineering.service import reject_entity_candidate, get_entity

    init_db()
    init_engineering_schema()
    e = create_entity("decision", "pick vendor Y", status="candidate")

    assert reject_entity_candidate(e.id, actor="test-triage", note="duplicate")
    e2 = get_entity(e.id)
    assert e2.status == "invalid"


def test_promote_active_entity_noop(tmp_data_dir):
    from atocore.engineering.service import promote_entity

    init_db()
    init_engineering_schema()
    e = create_entity("component", "Already Active")  # default status=active
    assert not promote_entity(e.id)  # only candidates can promote


def test_entity_audit_log_captures_lifecycle(tmp_data_dir):
    from atocore.engineering.service import (
        promote_entity,
        get_entity_audit,
    )

    init_db()
    init_engineering_schema()
    e = create_entity("requirement", "test req", status="candidate", actor="test")
    promote_entity(e.id, actor="test-triage", note="looks good")

    audit = get_entity_audit(e.id)
    actions = [a["action"] for a in audit]
    assert "created" in actions
    assert "promoted" in actions

    promote_entry = next(a for a in audit if a["action"] == "promoted")
    assert promote_entry["actor"] == "test-triage"
    assert promote_entry["note"] == "looks good"
    assert promote_entry["before"]["status"] == "candidate"
    assert promote_entry["after"]["status"] == "active"


def test_new_relationship_types_available(tmp_data_dir):
    """Phase 5 added 6 missing relationship types."""
    for rel in ["based_on_assumption", "supports", "conflicts_with",
                "updated_by_session", "evidenced_by", "summarized_in"]:
        assert rel in RELATIONSHIP_TYPES, f"{rel} missing from RELATIONSHIP_TYPES"


def test_conflicts_tables_exist(tmp_data_dir):
    """Phase 5 conflict-model tables."""
    from atocore.models.database import get_connection

    init_db()
    with get_connection() as conn:
        tables = {r[0] for r in conn.execute(
            "SELECT name FROM sqlite_master WHERE type='table'"
        ).fetchall()}
    assert "conflicts" in tables
    assert "conflict_members" in tables


def test_memory_audit_has_entity_kind(tmp_data_dir):
    """Phase 5 added entity_kind discriminator."""
    from atocore.models.database import get_connection

    init_db()
    with get_connection() as conn:
        cols = {r["name"] for r in conn.execute("PRAGMA table_info(memory_audit)").fetchall()}
    assert "entity_kind" in cols


def test_graduated_status_accepted(tmp_data_dir):
    """Phase 5 added 'graduated' memory status for memory→entity transitions."""
    from atocore.memory.service import MEMORY_STATUSES
    assert "graduated" in MEMORY_STATUSES