"""Initial migration

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

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

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:
    # Users table
    op.create_table('users',
        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('username', sa.String(50), nullable=False),
        sa.Column('email', sa.String(255), nullable=False),
        sa.Column('password_hash', sa.String(255), nullable=False),
        sa.Column('created_at', sa.DateTime(), nullable=True),
        sa.PrimaryKeyConstraint('id'),
        sa.UniqueConstraint('email'),
        sa.UniqueConstraint('username')
    )

    # Tracks table
    op.create_table('tracks',
        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('title', sa.String(255), nullable=False),
        sa.Column('artist', sa.String(255), nullable=False),
        sa.Column('duration', sa.Integer(), nullable=False),
        sa.Column('s3_key', sa.String(500), nullable=False),
        sa.Column('file_size', sa.Integer(), nullable=False),
        sa.Column('uploaded_by', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('created_at', sa.DateTime(), nullable=True),
        sa.ForeignKeyConstraint(['uploaded_by'], ['users.id'], ),
        sa.PrimaryKeyConstraint('id')
    )

    # Rooms table
    op.create_table('rooms',
        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('name', sa.String(100), nullable=False),
        sa.Column('owner_id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('current_track_id', postgresql.UUID(as_uuid=True), nullable=True),
        sa.Column('playback_position', sa.Integer(), nullable=True),
        sa.Column('is_playing', sa.Boolean(), nullable=True),
        sa.Column('created_at', sa.DateTime(), nullable=True),
        sa.ForeignKeyConstraint(['current_track_id'], ['tracks.id'], ),
        sa.ForeignKeyConstraint(['owner_id'], ['users.id'], ),
        sa.PrimaryKeyConstraint('id')
    )

    # Room participants table
    op.create_table('room_participants',
        sa.Column('room_id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('joined_at', sa.DateTime(), nullable=True),
        sa.ForeignKeyConstraint(['room_id'], ['rooms.id'], ),
        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
        sa.PrimaryKeyConstraint('room_id', 'user_id')
    )

    # Room queue table
    op.create_table('room_queue',
        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('room_id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('track_id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('position', sa.Integer(), nullable=False),
        sa.Column('added_by', postgresql.UUID(as_uuid=True), nullable=False),
        sa.ForeignKeyConstraint(['added_by'], ['users.id'], ),
        sa.ForeignKeyConstraint(['room_id'], ['rooms.id'], ),
        sa.ForeignKeyConstraint(['track_id'], ['tracks.id'], ),
        sa.PrimaryKeyConstraint('id')
    )

    # Messages table
    op.create_table('messages',
        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('room_id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column('text', sa.Text(), nullable=False),
        sa.Column('created_at', sa.DateTime(), nullable=True),
        sa.ForeignKeyConstraint(['room_id'], ['rooms.id'], ),
        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
        sa.PrimaryKeyConstraint('id')
    )


def downgrade() -> None:
    op.drop_table('messages')
    op.drop_table('room_queue')
    op.drop_table('room_participants')
    op.drop_table('rooms')
    op.drop_table('tracks')
    op.drop_table('users')