"""add project_members table

Revision ID: 058
Revises: 057
Create Date: 2025-01-01 00:00:00.000000

"""
from alembic import op
import sqlalchemy as sa

# revision identifiers, used by Alembic.
revision = "058"
down_revision = "057"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "project_members",
        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column("project_id", sa.Integer(), sa.ForeignKey("projects.id", ondelete="CASCADE"), nullable=False),
        sa.Column("user_id", sa.Integer(), sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False),
        sa.Column("invited_by", sa.Integer(), sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False),
        sa.Column("permission", sa.String(20), nullable=False),
        sa.Column("status", sa.String(20), nullable=False, server_default="pending"),
        sa.Column("source", sa.String(20), nullable=False, server_default="invited"),
        sa.Column("created_at", sa.DateTime(), server_default=sa.func.now()),
        sa.Column("updated_at", sa.DateTime(), server_default=sa.func.now()),
        sa.Column("accepted_at", sa.DateTime(), nullable=True),
        sa.UniqueConstraint("project_id", "user_id", name="uq_project_members_proj_user"),
        sa.CheckConstraint("permission IN ('read_only', 'create_modify')", name="ck_project_members_permission"),
        sa.CheckConstraint("status IN ('pending', 'accepted', 'rejected')", name="ck_project_members_status"),
        sa.CheckConstraint("source IN ('invited', 'auto_assigned')", name="ck_project_members_source"),
    )
    op.create_index("ix_project_members_user_id", "project_members", ["user_id"])
    op.create_index("ix_project_members_project_id", "project_members", ["project_id"])
    op.create_index("ix_project_members_status", "project_members", ["status"])


def downgrade() -> None:
    op.drop_index("ix_project_members_status", table_name="project_members")
    op.drop_index("ix_project_members_project_id", table_name="project_members")
    op.drop_index("ix_project_members_user_id", table_name="project_members")
    op.drop_table("project_members")