-- Orders table
CREATE TABLE orders (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    organization_id UUID NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
    outlet_id UUID NOT NULL REFERENCES outlets(id) ON DELETE CASCADE,
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE RESTRICT,
    customer_id UUID,
    order_number VARCHAR(50) UNIQUE NOT NULL,
    table_number VARCHAR(20),
    order_type VARCHAR(50) NOT NULL CHECK (order_type IN ('dine_in', 'takeout', 'delivery')),
    status VARCHAR(50) DEFAULT 'pending' CHECK (status IN ('pending', 'preparing', 'ready', 'completed', 'cancelled')),
    subtotal DECIMAL(10,2) NOT NULL CHECK (subtotal >= 0),
    tax_amount DECIMAL(10,2) NOT NULL CHECK (tax_amount >= 0),
    discount_amount DECIMAL(10,2) DEFAULT 0.00 CHECK (discount_amount >= 0),
    total_amount DECIMAL(10,2) NOT NULL CHECK (total_amount >= 0),
    payment_status VARCHAR(50) DEFAULT 'pending' CHECK (payment_status IN ('pending', 'completed', 'failed', 'refunded')),
    metadata JSONB DEFAULT '{}',
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

-- Indexes
CREATE INDEX idx_orders_organization_id ON orders(organization_id);
CREATE INDEX idx_orders_outlet_id ON orders(outlet_id);
CREATE INDEX idx_orders_user_id ON orders(user_id);
CREATE INDEX idx_orders_order_number ON orders(order_number);
CREATE INDEX idx_orders_order_type ON orders(order_type);
CREATE INDEX idx_orders_status ON orders(status);
CREATE INDEX idx_orders_payment_status ON orders(payment_status);
CREATE INDEX idx_orders_created_at ON orders(created_at);