"""Add recipient-scoped generic notifications.

Revision ID: 20260716_01
Revises: 20260715_06
"""

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


revision = "20260716_01"
down_revision = "20260715_06"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "notifications",
        sa.Column("id", postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column("study_id", postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column("recipient_id", postgresql.UUID(as_uuid=True), nullable=False),
        sa.Column("category", sa.String(length=64), nullable=False),
        sa.Column("priority", sa.String(length=16), nullable=False, server_default="NORMAL"),
        sa.Column("title", sa.String(length=180), nullable=False),
        sa.Column("message", sa.String(length=500), nullable=False),
        sa.Column("action_path", sa.Text(), nullable=True),
        sa.Column("source_type", sa.String(length=64), nullable=False),
        sa.Column("source_id", sa.String(length=100), nullable=False),
        sa.Column("source_version", sa.String(length=100), nullable=True),
        sa.Column("dedupe_key", sa.String(length=255), nullable=False),
        sa.Column("read_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("resolved_at", sa.DateTime(timezone=True), nullable=True),
        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()),
        sa.ForeignKeyConstraint(["recipient_id"], ["users.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["study_id"], ["studies.id"], ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("recipient_id", "dedupe_key", name="uq_notifications_recipient_dedupe"),
    )
    op.create_index(
        "ix_notifications_recipient_study_state",
        "notifications",
        ["recipient_id", "study_id", "resolved_at", "read_at", "created_at"],
    )
    op.create_index("ix_notifications_source", "notifications", ["source_type", "source_id"])


def downgrade() -> None:
    op.drop_index("ix_notifications_source", table_name="notifications")
    op.drop_index("ix_notifications_recipient_study_state", table_name="notifications")
    op.drop_table("notifications")