-- Migration: 013_notification_extra_columns.sql
-- Add extended columns to notification table for full feature support.

ALTER TABLE notification ADD COLUMN IF NOT EXISTS repo_id UUID NULL REFERENCES repo(id) ON DELETE CASCADE;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS issue_id UUID NULL REFERENCES issue(id) ON DELETE CASCADE;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS pull_request_id UUID NULL REFERENCES pull_request(id) ON DELETE CASCADE;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS channel_id UUID NULL REFERENCES channel(id) ON DELETE CASCADE;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS message_id UUID NULL REFERENCES message(id) ON DELETE CASCADE;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS target_type TEXT NULL;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS target_id UUID NULL;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS action_url TEXT NULL;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS priority TEXT NOT NULL DEFAULT 'normal';
ALTER TABLE notification ADD COLUMN IF NOT EXISTS metadata JSONB NULL;
ALTER TABLE notification ADD COLUMN IF NOT EXISTS deleted_at TIMESTAMPTZ NULL;

CREATE INDEX IF NOT EXISTS idx_notification_repo_id ON notification (repo_id);
CREATE INDEX IF NOT EXISTS idx_notification_issue_id ON notification (issue_id);
CREATE INDEX IF NOT EXISTS idx_notification_pull_request_id ON notification (pull_request_id);
CREATE INDEX IF NOT EXISTS idx_notification_channel_id ON notification (channel_id);
CREATE INDEX IF NOT EXISTS idx_notification_message_id ON notification (message_id);
CREATE INDEX IF NOT EXISTS idx_notification_target_id ON notification (target_id);
CREATE INDEX IF NOT EXISTS idx_notification_repo_created ON notification (repo_id, created_at DESC);
CREATE INDEX IF NOT EXISTS idx_notification_ws_created ON notification (workspace_id, created_at DESC);
CREATE INDEX IF NOT EXISTS idx_notification_deleted ON notification (deleted_at) WHERE deleted_at IS NOT NULL;