Fix analytics date fallback and RFV scoring

backend/sql/orderDateSql.js

@@ -0,0 +1,44 @@
+const ISO_ORDER_YEAR_SQL = "substring(data_pedido from '^(\\d{4})[-/]')::int";
+const ISO_ORDER_MONTH_SQL = "substring(data_pedido from '^\\d{4}[-/](\\d{1,2})[-/]')::int";
+const ISO_ORDER_DAY_SQL = "substring(data_pedido from '^\\d{4}[-/]\\d{1,2}[-/](\\d{1,2})')::int";
+const BR_ORDER_DAY_SQL = "substring(data_pedido from '^(\\d{1,2})[-/]')::int";
+const BR_ORDER_MONTH_SQL = "substring(data_pedido from '^\\d{1,2}[-/](\\d{1,2})[-/]')::int";
+const BR_ORDER_YEAR_SQL = "substring(data_pedido from '^\\d{1,2}[-/]\\d{1,2}[-/](\\d{4})')::int";
+
+const buildSafeDateSql = ({ yearSql, monthSql, daySql }) => {
+    const candidateDateSql = `(make_date(${yearSql}, ${monthSql}, 1) + ((${daySql} - 1) * INTERVAL '1 day'))::date`;
+
+    return `
+        CASE
+            WHEN ${yearSql} BETWEEN 1 AND 9999
+             AND ${monthSql} BETWEEN 1 AND 12
+             AND ${daySql} BETWEEN 1 AND 31
+             AND EXTRACT(MONTH FROM ${candidateDateSql})::int = ${monthSql}
+            THEN ${candidateDateSql}
+            ELSE NULL
+        END
+    `;
+};
+
+const ORDER_DATE_SQL = `
+    COALESCE(
+        data_pedido_date,
+        CASE
+            WHEN data_pedido ~ '^\\d{4}[-/]\\d{1,2}[-/]\\d{1,2}' THEN ${buildSafeDateSql({
+                yearSql: ISO_ORDER_YEAR_SQL,
+                monthSql: ISO_ORDER_MONTH_SQL,
+                daySql: ISO_ORDER_DAY_SQL
+            })}
+            WHEN data_pedido ~ '^\\d{1,2}[-/]\\d{1,2}[-/]\\d{4}' THEN ${buildSafeDateSql({
+                yearSql: BR_ORDER_YEAR_SQL,
+                monthSql: BR_ORDER_MONTH_SQL,
+                daySql: BR_ORDER_DAY_SQL
+            })}
+            ELSE NULL
+        END
+    )
+`;
+
+module.exports = {
+    ORDER_DATE_SQL
+};