From d640af40367403a30f855e843e10baf5fb5bed7f Mon Sep 17 00:00:00 2001
From: Eugene Burmakin <iamfrey@gmail.com>
Date: Mon, 23 Dec 2024 00:27:42 +0100
Subject: [PATCH] Add cache cleaning and preheating

---
 CHANGELOG.md                |  6 ++++++
 app/services/cache/clean.rb | 24 ++++++++++++++++++++++++
 config/environment.rb       |  6 ++++--
 3 files changed, 34 insertions(+), 2 deletions(-)
 create mode 100644 app/services/cache/clean.rb

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b8c8b2c1..a57d6e34 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+# 0.21.1 - 2024-12-23
+
+### Added
+
+- Cache cleaning and preheating upon application start.
+
 # 0.21.0 - 2024-12-20
 
 ⚠️ This release introduces a breaking change. ⚠️
diff --git a/app/services/cache/clean.rb b/app/services/cache/clean.rb
new file mode 100644
index 00000000..46a69e0b
--- /dev/null
+++ b/app/services/cache/clean.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+class Cache::Clean
+  class << self
+    def call
+      Rails.logger.info('Cleaning cache...')
+      delete_version_cache
+      delete_years_tracked_cache
+      Rails.logger.info('Cache cleaned')
+    end
+
+    private
+
+    def delete_version_cache
+      Rails.cache.delete(CheckAppVersion::VERSION_CACHE_KEY)
+    end
+
+    def delete_years_tracked_cache
+      User.find_each do |user|
+        Rails.cache.delete("dawarich/user_#{user.id}_years_tracked")
+      end
+    end
+  end
+end
diff --git a/config/environment.rb b/config/environment.rb
index c27e2a9f..3c870b83 100644
--- a/config/environment.rb
+++ b/config/environment.rb
@@ -6,6 +6,8 @@ require_relative 'application'
 # Initialize the Rails application.
 Rails.application.initialize!
 
-# Clear the cache of the application version
+# Clear the cache
+Cache::Clean.call
 
-Rails.cache.delete(CheckAppVersion::VERSION_CACHE_KEY)
+# Preheat the cache
+Cache::PreheatingJob.perform_later