"""Initial schema — users, games, versions, build_jobs.

Revision ID: 0001
Revises:
Create Date: 2026-06-07
"""

from __future__ import annotations

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "0001"
down_revision: str | None = None
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "users",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("username", sa.String(64), nullable=False, unique=True),
        sa.Column("password_hash", sa.String(255), nullable=False),
        sa.Column("is_admin", sa.Boolean(), nullable=False, server_default=sa.text("false")),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
    )
    op.create_index("ix_users_username", "users", ["username"], unique=True)

    op.create_table(
        "games",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("title", sa.String(255), nullable=False, unique=True),
        sa.Column("app_id", sa.Integer(), nullable=True),
        sa.Column("description_override", sa.Text(), nullable=True),
        sa.Column("header_image_override", sa.String(1024), nullable=True),
        sa.Column("is_private", sa.Boolean(), nullable=False, server_default=sa.text("false")),
        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
    )
    op.create_index("ix_games_title", "games", ["title"], unique=True)
    op.create_index("ix_games_is_private", "games", ["is_private"])
    op.create_index("ix_games_deleted_at", "games", ["deleted_at"])

    op.create_table(
        "versions",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("game_id", sa.Integer(), sa.ForeignKey("games.id", ondelete="CASCADE"), nullable=False),
        sa.Column("version_string", sa.String(64), nullable=False),
        sa.Column("ordinal", sa.Integer(), nullable=False),
        sa.Column("manifest_hash", sa.String(64), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
        sa.UniqueConstraint("game_id", "version_string", name="uq_versions_game_id_version_string"),
    )
    op.create_index("ix_versions_game_id_ordinal", "versions", ["game_id", "ordinal"])

    build_job_kind = sa.Enum(
        "import_new_game",
        "push_update",
        "generate_direct_update",
        "generate_indirect_update",
        "prepare_full_game",
        name="buildjobkind",
    )
    build_job_state = sa.Enum("pending", "running", "success", "failure", name="buildjobstate")

    op.create_table(
        "build_jobs",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("celery_task_id", sa.String(128), nullable=True),
        sa.Column("game_id", sa.Integer(), sa.ForeignKey("games.id", ondelete="SET NULL"), nullable=True),
        sa.Column("kind", build_job_kind, nullable=False),
        sa.Column("state", build_job_state, nullable=False, server_default="pending"),
        sa.Column("detail", sa.Text(), nullable=True),
        sa.Column("error", sa.Text(), nullable=True),
        sa.Column("started_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
    )
    op.create_index("ix_build_jobs_celery_task_id", "build_jobs", ["celery_task_id"])


def downgrade() -> None:
    op.drop_table("build_jobs")
    op.execute("DROP TYPE IF EXISTS buildjobstate")
    op.execute("DROP TYPE IF EXISTS buildjobkind")
    op.drop_table("versions")
    op.drop_table("games")
    op.drop_table("users")