"""Suppression des disponibilités déclarées

Revision ID: 0022_drop_availability
Revises: 0021_payment_option_free_amount
Create Date: 2026-10-05

Les fenêtres de disponibilité (`availability`) disparaissent, avec la règle
`OUTSIDE_AVAILABILITY` qui les exploitait. Les données existantes sont
perdues : le `downgrade` recrée la table vide. La case « je suis
disponible » du formulaire public (`volunteer.self_declared_available`)
n'est pas concernée.
"""

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "0022_drop_availability"
down_revision: str | None = "0021_payment_option_free_amount"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.drop_index(op.f("ix_availability_volunteer_id"), table_name="availability")
    op.drop_index(op.f("ix_availability_edition_id"), table_name="availability")
    op.drop_table("availability")


def downgrade() -> None:
    op.create_table(
        "availability",
        sa.Column("created_at", sa.DateTime(), nullable=False),
        sa.Column("updated_at", sa.DateTime(), nullable=False),
        sa.Column("id", sa.Uuid(), nullable=False),
        sa.Column("edition_id", sa.Uuid(), nullable=False),
        sa.Column("volunteer_id", sa.Uuid(), nullable=False),
        sa.Column("date", sa.Date(), nullable=False),
        sa.Column("start_time", sa.Time(), nullable=False),
        sa.Column("end_time", sa.Time(), nullable=False),
        sa.ForeignKeyConstraint(["edition_id"], ["edition.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["volunteer_id"], ["volunteer.id"], ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint(
            "volunteer_id", "date", "start_time", "end_time",
            name="uq_availability_window",
        ),
    )
    op.create_index(
        op.f("ix_availability_edition_id"), "availability", ["edition_id"], unique=False
    )
    op.create_index(
        op.f("ix_availability_volunteer_id"), "availability", ["volunteer_id"], unique=False
    )