-- Migration: add clients table and task person fields (requested/noted/received)
-- Created: 2026-02-21 10:30:00

BEGIN;

-- Clients table to store non-profile requesters/receivers
CREATE TABLE IF NOT EXISTS clients (
  id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
  name text NOT NULL,
  contact jsonb DEFAULT '{}'::jsonb,
  created_at timestamptz NOT NULL DEFAULT now()
);

-- Ensure we can efficiently search clients by name
CREATE INDEX IF NOT EXISTS clients_name_idx ON clients (lower(name));

-- Add nullable person fields to tasks (requested_by, noted_by, received_by)
ALTER TABLE IF EXISTS tasks
  ADD COLUMN IF NOT EXISTS requested_by text,
  ADD COLUMN IF NOT EXISTS noted_by text,
  ADD COLUMN IF NOT EXISTS received_by text;

CREATE INDEX IF NOT EXISTS tasks_requested_by_idx ON tasks (requested_by);
CREATE INDEX IF NOT EXISTS tasks_noted_by_idx ON tasks (noted_by);
CREATE INDEX IF NOT EXISTS tasks_received_by_idx ON tasks (received_by);

COMMIT;