-- Additive: standalone work and plans never create a case.
CREATE TABLE IF NOT EXISTS quick_time_batches (
 request_id UUID PRIMARY KEY, actor_id INTEGER NOT NULL REFERENCES users(user_id),
 payload JSONB NOT NULL, result JSONB NOT NULL, created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE TABLE IF NOT EXISTS quick_time_items (
 id SERIAL PRIMARY KEY, user_id INTEGER NOT NULL REFERENCES users(user_id),
 customer_id INTEGER REFERENCES customers(id), contact_id INTEGER REFERENCES contacts(id),
 description TEXT NOT NULL, priority TEXT NOT NULL DEFAULT 'normal',
 starts_at TIMESTAMPTZ NOT NULL, ends_at TIMESTAMPTZ NOT NULL,
 state TEXT NOT NULL CHECK(state IN ('planned','registered')),
 time_entry_id INTEGER UNIQUE REFERENCES tmodule_times(id),
 created_by INTEGER NOT NULL REFERENCES users(user_id), created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
 CHECK(ends_at>starts_at)
);
CREATE INDEX IF NOT EXISTS quick_time_items_period_idx ON quick_time_items(user_id,starts_at) WHERE state='planned';