"""Unit tests for agent slot providers."""

from __future__ import annotations

from datetime import datetime, timedelta, timezone
from types import SimpleNamespace

from steering.agent_slots.guardrail_review import resolve_guardrail_review_slots
from steering.agent_slots.recurring_due import resolve_recurring_due_slots
from steering.agent_slots.review_due import resolve_review_due_slots
from steering.agent_slots.registry import compute_agent_slots
from steering.kernel.models import HorizonMarker


def _ctx(**kwargs):
    defaults = {
        "initiative_id": "init-1",
        "horizon": HorizonMarker(kind="none"),
        "operating_context": {
            "data_slices": ["reviews", "recurring", "roadmap"],
            "steering_elements": ["gate_fulfillment", "recurring_rhythm"],
            "agent_slot_config": {},
        },
        "_reviews": [],
        "_recurring_elements": [],
        "_actions": [],
    }
    defaults.update(kwargs)

    class FakeCtx:
        initiative_id = defaults["initiative_id"]
        horizon = defaults["horizon"]
        operating_context = defaults["operating_context"]

        @property
        def steering_elements(self):
            return frozenset(self.operating_context.get("steering_elements") or [])

        @property
        def data_slices(self):
            return list(self.operating_context.get("data_slices") or [])

        @property
        def agent_slot_config(self):
            return dict(self.operating_context.get("agent_slot_config") or {})

        @property
        def reviews(self):
            return defaults["_reviews"]

        @property
        def recurring_elements(self):
            return defaults["_recurring_elements"]

        @property
        def actions(self):
            return defaults["_actions"]

    return FakeCtx()


def test_review_due_slot_for_overdue_planned_review():
    past = (datetime.now(timezone.utc) - timedelta(days=1)).isoformat()
    ctx = _ctx(
        _reviews=[
            {
                "id": "rev-1",
                "title": "Architektur-Review",
                "status": "planned",
                "due_at": past,
            }
        ]
    )
    slots = resolve_review_due_slots(ctx)
    assert len(slots) == 1
    assert slots[0]["slot_key"] == "review.due"
    assert slots[0]["scope_id"] == "rev-1"
    assert slots[0]["actor_role_hint"] == "reviewer"


def test_recurring_due_slot():
    past = (datetime.now(timezone.utc) - timedelta(hours=2)).isoformat()
    ctx = _ctx(
        _recurring_elements=[
            {
                "id": "rec-1",
                "title": "Sprint-Retro",
                "status": "active",
                "next_due_at": past,
            }
        ]
    )
    slots = resolve_recurring_due_slots(ctx)
    assert len(slots) == 1
    assert slots[0]["slot_key"] == "recurring.due"


def test_guardrail_slot_when_gate_has_planning_debt():
    ctx = _ctx(
        horizon=HorizonMarker(
            kind="gate",
            gate_roadmap_item_id="gate-1",
            gate_title="G3 Architektur",
        ),
        _reviews=[],
    )
    read_models = {
        "planning_debt": [{"roadmap_item_id": "gate-1", "title": "G3"}],
    }
    slots = resolve_guardrail_review_slots(ctx, read_models)
    assert len(slots) == 1
    assert slots[0]["slot_key"] == "review.guardrail"
    assert slots[0]["guardrail_pack"] == "default_v0"


def test_compute_agent_slots_respects_enabled_slots_filter():
    past = (datetime.now(timezone.utc) - timedelta(days=1)).isoformat()
    ctx = _ctx(
        operating_context={
            "data_slices": ["reviews", "recurring", "roadmap"],
            "steering_elements": ["gate_fulfillment", "recurring_rhythm"],
            "agent_slot_config": {"enabled_slots": ["review.due"]},
        },
        _reviews=[
            {"id": "rev-1", "title": "Review", "status": "planned", "due_at": past}
        ],
        _recurring_elements=[
            {
                "id": "rec-1",
                "title": "Retro",
                "status": "active",
                "next_due_at": past,
            }
        ],
    )
    slots = compute_agent_slots(ctx, read_models={}, proposals={})
    assert len(slots) == 1
    assert slots[0]["slot_key"] == "review.due"