-- Migration: Consolidated Schema for CASPOS
-- Purpose: Complete definition of core webshop structures, global rules, and order split support.

CREATE TABLE IF NOT EXISTS public.companies (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name TEXT NOT NULL,
    street TEXT,
    zip TEXT,
    city TEXT,
    email TEXT,
    created_at TIMESTAMPTZ DEFAULT now()
);

CREATE TABLE IF NOT EXISTS public.users (
    id UUID PRIMARY KEY REFERENCES auth.users(id) ON DELETE CASCADE,
    role TEXT NOT NULL DEFAULT 'partner' CHECK (role IN ('partner', 'admin')),
    company_id UUID REFERENCES public.companies(id) ON DELETE SET NULL,
    created_at TIMESTAMPTZ DEFAULT now()
);

CREATE TABLE IF NOT EXISTS public.end_customers (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    partner_id UUID REFERENCES public.companies(id) ON DELETE CASCADE,
    company_name TEXT,
    first_name TEXT,
    last_name TEXT,
    street TEXT,
    zip TEXT,
    city TEXT,
    email TEXT,
    bank_iban TEXT,
    bank_bic TEXT,
    bank_name TEXT,
    bank_owner TEXT,
    is_anonymized BOOLEAN DEFAULT false NOT NULL,
    created_at TIMESTAMPTZ DEFAULT now()
);

CREATE TABLE IF NOT EXISTS public.categories (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name TEXT NOT NULL,
    is_required BOOLEAN DEFAULT false NOT NULL,
    allow_multiple BOOLEAN DEFAULT false NOT NULL,
    sort_order INTEGER DEFAULT 0 NOT NULL,
    show_in_branches BOOLEAN DEFAULT true NOT NULL,
    preselect BOOLEAN DEFAULT false NOT NULL,
    resets_others BOOLEAN DEFAULT false NOT NULL,
    created_at TIMESTAMPTZ DEFAULT now()
);

CREATE TABLE IF NOT EXISTS public.products (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    category_id UUID REFERENCES public.categories(id) ON DELETE RESTRICT,
    name TEXT NOT NULL,
    base_price DECIMAL(10,2) DEFAULT 0.00 NOT NULL,
    tax_rate DECIMAL(5,2) DEFAULT 19.00 NOT NULL,
    billing_interval TEXT DEFAULT 'monthly' NOT NULL CHECK (billing_interval IN ('one_time', 'monthly')),
    show_in_branches BOOLEAN DEFAULT true NOT NULL,
    created_at TIMESTAMPTZ DEFAULT now()
);

CREATE TABLE IF NOT EXISTS public.modules (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    product_id UUID REFERENCES public.products(id) ON DELETE CASCADE,
    category_id UUID REFERENCES public.categories(id) ON DELETE RESTRICT,
    name TEXT NOT NULL,
    price DECIMAL(10,2) DEFAULT 0.00 NOT NULL,
    has_quantity BOOLEAN DEFAULT false NOT NULL,
    created_at TIMESTAMPTZ DEFAULT now()
);

CREATE TABLE IF NOT EXISTS public.global_inclusions (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    trigger_product_id UUID NOT NULL REFERENCES public.products(id) ON DELETE CASCADE,
    included_module_id UUID NOT NULL REFERENCES public.modules(id) ON DELETE CASCADE,
    created_at TIMESTAMPTZ DEFAULT now(),
    UNIQUE (trigger_product_id, included_module_id)
);

CREATE TABLE IF NOT EXISTS public.global_exclusions (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    product_id UUID NOT NULL REFERENCES public.products(id) ON DELETE CASCADE,
    excluded_product_id UUID REFERENCES public.products(id) ON DELETE CASCADE,
    excluded_module_id UUID REFERENCES public.modules(id) ON DELETE CASCADE,
    created_at TIMESTAMPTZ DEFAULT now(),
    CHECK (
        (excluded_product_id IS NOT NULL AND excluded_module_id IS NULL) OR
        (excluded_product_id IS NULL AND excluded_module_id IS NOT NULL)
    )
);

CREATE TABLE IF NOT EXISTS public.orders (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID REFERENCES auth.users(id) ON DELETE SET NULL,
    company_id UUID REFERENCES public.companies(id) ON DELETE RESTRICT,
    end_customer_id UUID REFERENCES public.end_customers(id) ON DELETE RESTRICT,
    order_number TEXT NOT NULL UNIQUE,
    order_hash TEXT,
    type TEXT NOT NULL CHECK (type IN ('purchase', 'subscription')),
    payment_method TEXT NOT NULL,
    total_price DECIMAL(10,2) DEFAULT 0.00 NOT NULL,
    customer_snapshot JSONB NOT NULL,
    order_snapshot JSONB NOT NULL,
    pdf_url TEXT,
    status TEXT DEFAULT 'pending' NOT NULL CHECK (status IN ('pending', 'active', 'completed', 'cancelled')),
    created_at TIMESTAMPTZ DEFAULT now()
);