-- Tablero CDC - Tarifario / Estimación interna
-- Crea la tabla que guarda las líneas de costo por proyecto.
-- No modifica proyectos existentes, no toca created_at, no toca Google Sheets ni n8n.

create table if not exists public.tablero_cdc_project_pricing_items (
  id uuid primary key default gen_random_uuid(),
  project_id uuid not null references public.tablero_cdc_projects(id) on delete cascade,
  source text not null default 'manual' check (source in ('tariff', 'manual')),
  category text not null default '',
  service_name text not null default '',
  work_type text not null default '',
  complexity_level text not null default '',
  reference_label text not null default '',
  reference_min numeric,
  reference_max numeric,
  amount numeric not null default 0 check (amount >= 0),
  description text not null default '',
  sort_order integer not null default 0,
  created_by uuid references auth.users(id),
  updated_by uuid references auth.users(id),
  created_at timestamptz not null default now(),
  updated_at timestamptz not null default now()
);

create index if not exists tablero_cdc_project_pricing_items_project_id_idx
  on public.tablero_cdc_project_pricing_items(project_id);

create index if not exists tablero_cdc_project_pricing_items_created_at_idx
  on public.tablero_cdc_project_pricing_items(created_at desc);

alter table public.tablero_cdc_project_pricing_items enable row level security;

drop policy if exists "tablero_cdc_project_pricing_items_select_authenticated" on public.tablero_cdc_project_pricing_items;
drop policy if exists "tablero_cdc_project_pricing_items_insert_authenticated" on public.tablero_cdc_project_pricing_items;
drop policy if exists "tablero_cdc_project_pricing_items_update_authenticated" on public.tablero_cdc_project_pricing_items;
drop policy if exists "tablero_cdc_project_pricing_items_delete_authenticated" on public.tablero_cdc_project_pricing_items;

create policy "tablero_cdc_project_pricing_items_select_authenticated"
  on public.tablero_cdc_project_pricing_items
  for select
  to authenticated
  using (true);

create policy "tablero_cdc_project_pricing_items_insert_authenticated"
  on public.tablero_cdc_project_pricing_items
  for insert
  to authenticated
  with check (true);

create policy "tablero_cdc_project_pricing_items_update_authenticated"
  on public.tablero_cdc_project_pricing_items
  for update
  to authenticated
  using (true)
  with check (true);

create policy "tablero_cdc_project_pricing_items_delete_authenticated"
  on public.tablero_cdc_project_pricing_items
  for delete
  to authenticated
  using (true);

create or replace function public.set_tablero_cdc_project_pricing_items_updated_at()
returns trigger
language plpgsql
as $$
begin
  new.updated_at = now();
  new.updated_by = auth.uid();
  if tg_op = 'INSERT' then
    new.created_by = coalesce(new.created_by, auth.uid());
  end if;
  return new;
end;
$$;

drop trigger if exists trg_tablero_cdc_project_pricing_items_updated_at on public.tablero_cdc_project_pricing_items;

create trigger trg_tablero_cdc_project_pricing_items_updated_at
before insert or update on public.tablero_cdc_project_pricing_items
for each row
execute function public.set_tablero_cdc_project_pricing_items_updated_at();

select
  'tablero_cdc_project_pricing_items lista' as status,
  count(*) as registros_actuales
from public.tablero_cdc_project_pricing_items;