init

backend/alembic/env.py

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+import asyncio
+from logging.config import fileConfig
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+from alembic import context
+import sys
+import os
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from app.database import Base
+from app.models import User, Room, RoomParticipant, Track, RoomQueue, Message
+
+config = context.config
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def do_run_migrations(connection: Connection) -> None:
+    context.configure(connection=connection, target_metadata=target_metadata)
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_async_migrations() -> None:
+    configuration = config.get_section(config.config_ini_section)
+    # Use DATABASE_URL from environment if available
+    db_url = os.environ.get("DATABASE_URL", configuration["sqlalchemy.url"])
+    configuration["sqlalchemy.url"] = db_url.replace(
+        "postgresql://", "postgresql+asyncpg://"
+    )
+    connectable = async_engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+    await connectable.dispose()
+
+
+def run_migrations_online() -> None:
+    asyncio.run(run_async_migrations())
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

backend/alembic/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

backend/alembic/versions/001_initial.py

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+"""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')

backend/alembic/versions/002_add_playback_started_at.py

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+"""Add playback_started_at to rooms
+
+Revision ID: 002
+Revises: 001
+Create Date: 2024-01-02
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = '002'
+down_revision: Union[str, None] = '001'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column('rooms', sa.Column('playback_started_at', sa.DateTime(), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column('rooms', 'playback_started_at')