"""baseline: accounts, projects, project members

Revision ID: 0001_baseline
Revises:
Create Date: 2026-08-11
"""

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "0001_baseline"
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(
        "app_accounts",
        sa.Column("username", sa.String(64), primary_key=True),
        sa.Column("email", sa.String(255), nullable=False, server_default=""),
        sa.Column("first", sa.String(120), nullable=False, server_default=""),
        sa.Column("last", sa.String(120), nullable=False, server_default=""),
        sa.Column("role", sa.String(32), nullable=False, server_default=""),
        sa.Column("active", sa.Boolean(), nullable=False, server_default="true"),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
        sa.Column("last_login", sa.DateTime(timezone=True), nullable=True),
    )

    op.create_table(
        "projects",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("slug", sa.String(80), nullable=False, unique=True),
        sa.Column("name", sa.String(160), nullable=False),
        sa.Column("client_name", sa.String(160), nullable=False, server_default=""),
        sa.Column("brief", sa.Text(), nullable=False, server_default=""),
        sa.Column("status", sa.String(32), nullable=False, server_default="draft"),
        sa.Column(
            "created_by",
            sa.String(64),
            sa.ForeignKey("app_accounts.username", ondelete="RESTRICT"),
            nullable=False,
        ),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
        sa.Column(
            "updated_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
    )
    op.create_index("ix_projects_slug", "projects", ["slug"])

    op.create_table(
        "project_members",
        sa.Column(
            "project_id",
            sa.Integer(),
            sa.ForeignKey("projects.id", ondelete="CASCADE"),
            primary_key=True,
        ),
        sa.Column(
            "username",
            sa.String(64),
            sa.ForeignKey("app_accounts.username", ondelete="CASCADE"),
            primary_key=True,
        ),
        sa.Column("added_by", sa.String(64), nullable=False),
        sa.Column(
            "added_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
    )
    op.create_index("ix_project_members_username", "project_members", ["username"])


def downgrade() -> None:
    op.drop_index("ix_project_members_username", table_name="project_members")
    op.drop_table("project_members")
    op.drop_index("ix_projects_slug", table_name="projects")
    op.drop_table("projects")
    op.drop_table("app_accounts")