From 7bf60649166dc1eb62c7327c7e18c7eb2344b378 Mon Sep 17 00:00:00 2001
From: Julian Builes <julianbuilesc@gmail.com>
Date: Sat, 11 Jul 2020 11:08:54 -0500
Subject: [PATCH] add function that filters date

---
 src/filter.js | 70 +++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 68 insertions(+), 2 deletions(-)

diff --git a/src/filter.js b/src/filter.js
index 13e106b..d7e147b 100644
--- a/src/filter.js
+++ b/src/filter.js
@@ -1,6 +1,72 @@
+const sub = require("date-fns/sub");
+const format = require("date-fns/format");
+const getYear = require("date-fns/getYear");
+const lastDayOfYear = require("date-fns/lastDayOfYear");
+const startOfMonth = require("date-fns/startOfMonth");
+const endOfMonth = require("date-fns/endOfMonth");
+
+const esLocale = require("date-fns/locale/es");
+
 const makeFilter = (date) => {
   let filters = [];
+
+  //Ultimos 7 dias
+  filters.push(lastDays(7, "Últimos 7 días", date));
+
+  //Ultimos 28 dias
+  filters.push(lastDays(28, "Últimos 28 días", date));
+
+  //Ultimos 90 dias
+  filters.push(lastDays(90, "Últimos 90 días", date));
+
+  //Ultimos 365 dias
+  filters.push(lastDays(365, "Últimos 365 días", date));
+
+  //Ultimos 3 años
+  const numYears = 3;
+  for (let index = 1; index < numYears + 1; index++) {
+    filters.push(lastYears(date, index));
+  }
+
+  //Ultimos 3 mese
+  lastMonths(date, 3, filters);
+
   return filters;
-}
+};
+
+//Methodes
+
+const lastDays = (numDays, label, date) => {
+  const array = {
+    label,
+    startAt: format(sub(date, { days: numDays }), "yyyy/MM/dd"),
+    endAt: format(date, "yyyy/MM/dd"),
+  };
+
+  return array;
+};
+
+const lastYears = (date, subtracYear) => {
+  const lastYear = sub(date, { years: subtracYear });
+
+  const array = {
+    label: getYear(lastYear).toString(),
+    startAt: format(lastYear, "yyyy/MM/dd"),
+    endAt: format(lastDayOfYear(lastYear), "yyyy/MM/dd"),
+  };
+
+  return array;
+};
+
+const lastMonths = (date, numMonths, array) => {
+  for (let index = 1; index <= numMonths; index++) {
+    const monthPrev = sub(date, { months: index });
+    array.push({
+      label: format(monthPrev, "MMMM", { locale: esLocale }),
+      startAt: format(startOfMonth(monthPrev), "yyyy/MM/dd"),
+      endAt: format(endOfMonth(monthPrev), "yyyy/MM/dd"),
+    });
+  }
+};
 
-module.exports = { makeFilter };
\ No newline at end of file
+module.exports = { makeFilter };