Review changes

lib/lightning/maintenance/admin_tools.ex

@@ -1,7 +1,7 @@
 defmodule Lightning.AdminTools do
   def generate_iso_weeks(start_date, end_date) do
     Date.range(start_date, end_date)
-    |> Enum.map(&Timex.beginning_of_week(&1, :mon))
+    |> Enum.map(&Date.beginning_of_week(&1))
     |> Enum.uniq()
     |> Enum.map(fn date ->
       {year, week} = Timex.iso_week(date)
@@ -10,7 +10,7 @@ defmodule Lightning.AdminTools do
         year |> Integer.to_string(),
         week |> Integer.to_string() |> String.pad_leading(2, "0"),
         date |> Date.to_string(),
-        date |> Timex.shift(weeks: 1) |> Date.to_string()
+        date |> Date.add(7) |> Date.to_string()
       }
     end)
   end

lib/lightning/maintenance/partition_table_service.ex

@@ -22,7 +22,7 @@ defmodule Lightning.PartitionTableService do
   @impl Oban.Worker
   def perform(%Oban.Job{args: %{"drop_older_than" => %{"weeks" => weeks}}})
       when is_integer(weeks) do
-    upper_bound = Timex.shift(DateTime.utc_now(), weeks: weeks)
+    upper_bound = DateTime.add(DateTime.utc_now(), weeks * 7, :day)
 
     remove_empty("work_orders", upper_bound)
   end

test/lightning/maintenance/partition_table_service_test.exs

@@ -34,7 +34,7 @@ defmodule Lightning.PartitionTableServiceTest do
     test "removes obsolete partitions" do
       parent = "work_orders"
 
-      now = DateTime.now!("Etc/UTC")
+      now = DateTime.utc_now()
 
       drop_range_partitions(parent)
 
@@ -75,7 +75,7 @@ defmodule Lightning.PartitionTableServiceTest do
   end
 
   test "tables_to_add returns tables that do not already exist" do
-    now = DateTime.now!("Etc/UTC")
+    now = DateTime.utc_now()
 
     parent = "work_orders"
 
@@ -109,7 +109,7 @@ defmodule Lightning.PartitionTableServiceTest do
   end
 
   test "add_headroom - all" do
-    now = DateTime.now!("Etc/UTC")
+    now = DateTime.utc_now()
 
     parent = "work_orders"
 
@@ -129,7 +129,7 @@ defmodule Lightning.PartitionTableServiceTest do
   end
 
   test "add_headroom - parent specified" do
-    now = DateTime.now!("Etc/UTC")
+    now = DateTime.utc_now()
 
     parent = "work_orders"
 
@@ -152,7 +152,7 @@ defmodule Lightning.PartitionTableServiceTest do
   test "remove_empty" do
     parent = "work_orders"
 
-    now = DateTime.now!("Etc/UTC")
+    now = DateTime.utc_now()
 
     drop_range_partitions(parent)
 
@@ -167,7 +167,7 @@ defmodule Lightning.PartitionTableServiceTest do
 
     generate_partitions(-6..3, now, parent)
 
-    weeks_ago = Timex.shift(DateTime.utc_now(), weeks: -2)
+    weeks_ago = DateTime.add(DateTime.utc_now(), -2 * 7, :day)
 
     Service.remove_empty(parent, weeks_ago)