-- Verifica las 4 lecturas que carga Programa de obra (get, concepts, partidas, vs-cost).
-- Esquema mínimo con las columnas reales. No es Liquibase.

DROP SCHEMA IF EXISTS core CASCADE;
CREATE SCHEMA core;
SET search_path = core;

CREATE FUNCTION rpc_generic_messages() RETURNS text[] LANGUAGE sql IMMUTABLE AS $$
  SELECT ARRAY['OK']::text[];
$$;
CREATE FUNCTION rpc_assert_message(p_message text) RETURNS void LANGUAGE plpgsql IMMUTABLE AS $$
BEGIN
  IF p_message IS NULL OR btrim(p_message) = '' THEN RAISE EXCEPTION 'empty'; END IF;
END;
$$;
CREATE FUNCTION rpc_ok(p_data jsonb, p_message text, p_ctx jsonb DEFAULT '{}'::jsonb) RETURNS jsonb
LANGUAGE plpgsql IMMUTABLE AS $$
BEGIN
  PERFORM rpc_assert_message(p_message);
  RETURN jsonb_build_object('ok', true, 'code', 'OK', 'message', p_message, 'data', p_data);
END;
$$;
CREATE FUNCTION rpc_err(p_code text, p_message text, p_ctx jsonb DEFAULT '{}'::jsonb, p_errors jsonb DEFAULT NULL) RETURNS jsonb
LANGUAGE plpgsql IMMUTABLE AS $$
BEGIN
  PERFORM rpc_assert_message(p_message);
  RETURN jsonb_build_object('ok', false, 'code', p_code, 'message', p_message, 'data', NULL);
END;
$$;
CREATE FUNCTION rpc_from_exception(p_fn text, p_sqlstate text, p_message text, p_detail text DEFAULT NULL) RETURNS jsonb
LANGUAGE plpgsql IMMUTABLE AS $$
BEGIN
  RETURN rpc_err('INTERNAL', format('Error inesperado en %s (sqlstate=%s): %s', p_fn, p_sqlstate, p_message),
    jsonb_build_object('fn', p_fn, 'sqlstate', p_sqlstate));
END;
$$;

CREATE TABLE companies (id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, name text);
CREATE TABLE projects (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  name text, status text DEFAULT 'activo', tenant_id int, start_date date, end_date date
);
CREATE TABLE budget_chapters (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  project_id BIGINT REFERENCES projects(id),
  code text, name text, sort_order int DEFAULT 0
);
CREATE TABLE budget_items (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  project_id BIGINT REFERENCES projects(id),
  chapter_id BIGINT REFERENCES budget_chapters(id),
  code text, description text, unit text DEFAULT '', amount numeric(14,2) DEFAULT 0, sort_order int DEFAULT 0
);
CREATE TABLE work_programs (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  project_id BIGINT UNIQUE REFERENCES projects(id),
  start_date date, end_date date, duration_days int, source text, status text
);
CREATE TABLE work_program_periods (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  program_id BIGINT REFERENCES work_programs(id),
  period_index int, label text, start_date date, end_date date
);
CREATE TABLE work_program_partida_amounts (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  program_id BIGINT REFERENCES work_programs(id),
  budget_chapter_id BIGINT REFERENCES budget_chapters(id),
  period_id BIGINT REFERENCES work_program_periods(id),
  amount numeric(14,2)
);
CREATE TABLE work_program_concept_slots (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  program_id BIGINT, budget_item_id BIGINT, period_id BIGINT, start_pct numeric, end_pct numeric
);
CREATE TABLE work_program_progress (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  program_id BIGINT, budget_item_id BIGINT, period_id BIGINT, pct_complete numeric
);
CREATE TABLE expense_entries (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  project_id BIGINT, expense_date date, subtotal numeric(14,2),
  status text, counts_toward_budget boolean, budget_item_id BIGINT
);
CREATE TABLE warehouses (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  tenant_id int, kind text, project_id BIGINT
);
CREATE TABLE warehouse_materials (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, tenant_id int, code text, name text
);
CREATE TABLE warehouse_movements (
  id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
  tenant_id int,
  warehouse_id BIGINT REFERENCES warehouses(id),
  material_id BIGINT,
  movement_type text,
  movement_date date,
  quantity numeric,
  total_cost numeric(14,2),
  budget_item_id BIGINT
);

CREATE FUNCTION _cost_executed_amount(p_budget_item_id bigint) RETURNS numeric
LANGUAGE sql STABLE SET search_path = core AS $$
  SELECT round(COALESCE(
    (SELECT SUM(e.subtotal) FROM expense_entries e
      WHERE e.budget_item_id = p_budget_item_id AND e.status = 'confirmed' AND e.counts_toward_budget = true),
    0
  ) + COALESCE(
    (SELECT SUM(m.total_cost) FROM warehouse_movements m
      WHERE m.budget_item_id = p_budget_item_id AND m.movement_type = 'exit'),
    0
  ), 2);
$$;