DROP VIEW IF EXISTS chats_expanded;

ALTER TABLE chats DROP CONSTRAINT IF EXISTS chat_acl_only_on_root_chats;
ALTER TABLE chats DROP CONSTRAINT IF EXISTS chat_group_acl_not_null_jsonb;
ALTER TABLE chats DROP CONSTRAINT IF EXISTS chat_user_acl_not_null_jsonb;
ALTER TABLE chats DROP COLUMN IF EXISTS group_acl;
ALTER TABLE chats DROP COLUMN IF EXISTS user_acl;

CREATE VIEW chats_expanded AS
SELECT
    c.id,
    c.owner_id,
    c.workspace_id,
    c.title,
    c.status,
    c.worker_id,
    c.started_at,
    c.heartbeat_at,
    c.created_at,
    c.updated_at,
    c.parent_chat_id,
    c.root_chat_id,
    c.last_model_config_id,
    c.archived,
    c.last_error,
    c.mode,
    c.mcp_server_ids,
    c.labels,
    c.build_id,
    c.agent_id,
    c.pin_order,
    c.last_read_message_id,
    c.last_injected_context,
    c.dynamic_tools,
    c.organization_id,
    c.plan_mode,
    c.client_type,
    c.last_turn_summary,
    owner.username AS owner_username,
    owner.name AS owner_name
FROM
    chats c
    JOIN visible_users owner ON owner.id = c.owner_id;

-- Intentionally leave chat:share in api_key_scope because PostgreSQL cannot remove enum values.