"""moment_mappings — an install's own corrections to which actions reach which
moment (milestone 458 step 2)

Revision ID: 0116
Revises: 0115
Create Date: 2026-10-05

The moments and their default actions are code; this table holds what an
install adds ("make ship" is a deliver here) and the defaults it switches off.
User-owned configuration, so it cascades with the user. No CHECK on `effect`,
which the service validates (rule 36).
"""
import sqlalchemy as sa
from alembic import op

revision = "0116"
down_revision = "0115"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "moment_mappings",
        sa.Column("id", sa.BigInteger(), primary_key=True),
        sa.Column(
            "created_at", sa.DateTime(timezone=True), nullable=False,
            server_default=sa.text("now()"),
        ),
        sa.Column(
            "user_id", sa.Integer(),
            sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False,
        ),
        sa.Column("tool", sa.Text(), nullable=False),
        sa.Column("match", sa.Text(), nullable=False, server_default=""),
        sa.Column("moment", sa.Text(), nullable=False),
        sa.Column("effect", sa.Text(), nullable=False, server_default="add"),
        sa.Column("reason", sa.Text(), nullable=False, server_default=""),
        sa.Column("actor", sa.Text(), nullable=False, server_default="model"),
        sa.UniqueConstraint(
            "user_id", "tool", "match", "moment", name="uq_moment_mapping",
        ),
    )


def downgrade() -> None:
    op.drop_table("moment_mappings")