"""Initial migration

Revision ID: 001
Revises:
Create Date: 2024-01-08

"""
from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "001"
down_revision: Union[str, None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "participants",
        sa.Column("id", sa.UUID(), nullable=False),
        sa.Column("name", sa.String(255), nullable=False),
        sa.Column("email", sa.String(255), nullable=False),
        sa.Column("ics_url", sa.Text(), nullable=True),
        sa.Column("created_at", sa.DateTime(), nullable=False),
        sa.Column("updated_at", sa.DateTime(), nullable=False),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("email"),
    )

    op.create_table(
        "busy_blocks",
        sa.Column("id", sa.UUID(), nullable=False),
        sa.Column("participant_id", sa.UUID(), nullable=False),
        sa.Column("start_time", sa.DateTime(timezone=True), nullable=False),
        sa.Column("end_time", sa.DateTime(timezone=True), nullable=False),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(
        "ix_busy_blocks_participant_id", "busy_blocks", ["participant_id"]
    )


def downgrade() -> None:
    op.drop_index("ix_busy_blocks_participant_id", table_name="busy_blocks")
    op.drop_table("busy_blocks")
    op.drop_table("participants")