-- Users table
CREATE TABLE users (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    organization_id UUID NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
    outlet_id UUID REFERENCES outlets(id) ON DELETE SET NULL,
    name VARCHAR(255) NOT NULL,
    email VARCHAR(255) UNIQUE NOT NULL,
    password_hash VARCHAR(255) NOT NULL,
    role VARCHAR(50) NOT NULL CHECK (role IN ('admin', 'manager', 'cashier', 'waiter')),
    permissions JSONB DEFAULT '{}',
    is_active BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

-- Indexes
CREATE INDEX idx_users_organization_id ON users(organization_id);
CREATE INDEX idx_users_outlet_id ON users(outlet_id);
CREATE INDEX idx_users_email ON users(email);
CREATE INDEX idx_users_role ON users(role);
CREATE INDEX idx_users_is_active ON users(is_active);
CREATE INDEX idx_users_name ON users(name);