productos, equivalencias, cross-sell y cantidades

db/migrations/20260119120000_product_qty_rules.sql

@@ -0,0 +1,41 @@
+-- migrate:up
+
+-- Nueva tabla simplificada para cantidades por producto/evento/persona
+create table if not exists product_qty_rules (
+  id bigserial primary key,
+  tenant_id uuid not null references tenants(id) on delete cascade,
+  woo_product_id integer not null,
+  event_type text not null,         -- 'asado' | 'horno' | 'cumple' | 'almuerzo'
+  person_type text not null,        -- 'adult' | 'child'
+  qty_per_person numeric(6,3),      -- cantidad por persona
+  unit text not null default 'kg',  -- 'kg' | 'g' | 'unidad'
+  created_at timestamptz not null default now(),
+  updated_at timestamptz not null default now(),
+  unique (tenant_id, woo_product_id, event_type, person_type)
+);
+
+create index if not exists product_qty_rules_tenant_idx on product_qty_rules(tenant_id);
+create index if not exists product_qty_rules_product_idx on product_qty_rules(tenant_id, woo_product_id);
+create index if not exists product_qty_rules_event_idx on product_qty_rules(tenant_id, event_type);
+
+-- Migrar datos existentes de reco_rule_items (donde la regla es tipo qty_per_person)
+insert into product_qty_rules (tenant_id, woo_product_id, event_type, person_type, qty_per_person, unit)
+select 
+  r.tenant_id,
+  i.woo_product_id,
+  coalesce(r.trigger_event, 'asado') as event_type,
+  coalesce(i.audience_type, 'adult') as person_type,
+  i.qty_per_person,
+  coalesce(i.unit, 'kg') as unit
+from reco_rule_items i
+inner join product_reco_rules r on r.id = i.rule_id
+where r.rule_type = 'qty_per_person'
+  and i.qty_per_person is not null
+on conflict (tenant_id, woo_product_id, event_type, person_type) 
+do update set 
+  qty_per_person = excluded.qty_per_person,
+  unit = excluded.unit,
+  updated_at = now();
+
+-- migrate:down
+drop table if exists product_qty_rules;