"""Add collaboration tables: votes, comments, activities, notifications

Revision ID: 007
Revises: 006
Create Date: 2026-05-15
"""
from typing import Sequence, Union

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

revision: str = "007"
down_revision: Union[str, None] = "006"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "idea_votes",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
        sa.Column("idea_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("ideas.id", ondelete="CASCADE"), nullable=False, index=True),
        sa.Column("user_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True),
        sa.Column("vote", sa.String(4), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.UniqueConstraint("idea_id", "user_id", name="uq_idea_user_vote"),
    )

    op.create_table(
        "idea_comments",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
        sa.Column("idea_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("ideas.id", ondelete="CASCADE"), nullable=False, index=True),
        sa.Column("user_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True),
        sa.Column("content", sa.Text(), nullable=False),
        sa.Column("parent_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("idea_comments.id", ondelete="CASCADE"), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
    )

    op.create_table(
        "idea_activities",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
        sa.Column("idea_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("ideas.id", ondelete="CASCADE"), nullable=False, index=True),
        sa.Column("user_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True, index=True),
        sa.Column("action", sa.String(50), nullable=False),
        sa.Column("details", postgresql.JSONB(), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
    )

    op.create_table(
        "notifications",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
        sa.Column("user_id", postgresql.UUID(as_uuid=True),
                  sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True),
        sa.Column("type", sa.String(50), nullable=False, index=True),
        sa.Column("title", sa.String(255), nullable=False),
        sa.Column("body", sa.Text(), nullable=False),
        sa.Column("link", sa.String(512), nullable=True),
        sa.Column("is_read", sa.Boolean(), nullable=False, server_default=sa.text("false"), index=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
    )


def downgrade() -> None:
    op.drop_table("notifications")
    op.drop_table("idea_activities")
    op.drop_table("idea_comments")
    op.drop_table("idea_votes")