"""Architecture Lane Inventory: standalone inventory_record stock state.

Revision ID: 148
Revises: 147
"""
from uuid import uuid4

import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects.postgresql import JSONB, UUID, insert

revision = "148"
down_revision = "147"
branch_labels = None
depends_on = None

feature_packs = sa.table("feature_packs",
    sa.column("id", UUID(as_uuid=True)), sa.column("slug", sa.String),
    sa.column("name", sa.String), sa.column("description", sa.Text),
    sa.column("version", sa.String),
    sa.column("tags", JSONB),
    sa.column("status", sa.String),
    sa.column("composition", JSONB),
    sa.column("input_schema", JSONB),
    sa.column("access_policy", JSONB),
)


def inventory_composition() -> dict:
    from src.domain.feature_packs.crm_authorization import staff_policy
    from src.domain.feature_packs.normalize import stamp_composition

    return stamp_composition("inventory-management", {
        "function_slugs": [], "connector_actions": [], "requires": [],
        "entities": [{
            "entity_key": "inventory_record", "name": "Inventory", "plural_name": "Inventory",
            "rls_enabled": False, "owner_managed": False,
            "schema": {
                "fields": [
                    {"key": "sku", "name": "SKU", "type": "text", "required": True, "indexed": True},
                    {"key": "item_name", "name": "Item name", "type": "text"},
                    {"key": "location", "name": "Location", "type": "text"},
                    {"key": "quantity", "name": "Quantity", "type": "number", "required": True, "indexed": True},
                    {"key": "reorder_level", "name": "Reorder level", "type": "number"},
                    {"key": "unit", "name": "Unit", "type": "text"},
                    {"key": "notes", "name": "Notes", "type": "text"},
                ],
                "access_policy": staff_policy(),
            },
        }],
    }, implementation_version="1.0.0")


def upgrade() -> None:
    op.get_bind().execute(insert(feature_packs).values(
        id=uuid4(), slug="inventory-management", name="Inventory Management", version="1.0.0",
        description=(
            "Staff-managed operational stock records. Quantity is explicit state, not a reservation."
        ),
        tags=["inventory", "stock"], status="active", composition=inventory_composition(),
        input_schema={"type": "object", "properties": {}}, access_policy={"minimum_plan": "free"},
    ).on_conflict_do_nothing(index_elements=["slug"]))


def downgrade() -> None:
    pass