feat: allow superadmins to reset cache keys for IndexedDB (#7180)

Allows super admins to reset the cache for an account. This will force the front end to fetch the data again on the next load.

fixes: https://linear.app/chatwoot/issue/CW-1817

Co-authored-by: Sojan <sojan@pepalo.com>

spec/models/concerns/cache_keys_spec.rb

@@ -0,0 +1,73 @@
+require 'rails_helper'
+
+RSpec.describe CacheKeys do
+  let(:test_model) do
+    Struct.new(:id) do
+      include CacheKeys
+
+      def fetch_value_for_key(_id, _key)
+        'value'
+      end
+    end.new(1)
+  end
+
+  before do
+    allow(Redis::Alfred).to receive(:delete)
+    allow(Redis::Alfred).to receive(:set)
+    allow(Rails.configuration.dispatcher).to receive(:dispatch)
+  end
+
+  describe '#cache_keys' do
+    it 'returns a hash of cache keys' do
+      expected_keys = test_model.class.cacheable_models.map do |model|
+        [model.name.underscore.to_sym, 'value']
+      end.to_h
+
+      expect(test_model.cache_keys).to eq(expected_keys)
+    end
+  end
+
+  describe '#invalidate_cache_key_for' do
+    it 'deletes the cache key' do
+      test_model.invalidate_cache_key_for('label')
+      expect(Redis::Alfred).to have_received(:delete).with('idb-cache-key-account-1-label')
+    end
+
+    it 'dispatches a cache update event' do
+      test_model.invalidate_cache_key_for('label')
+      expect(Rails.configuration.dispatcher).to have_received(:dispatch).with(
+        CacheKeys::ACCOUNT_CACHE_INVALIDATED,
+        kind_of(ActiveSupport::TimeWithZone),
+        cache_keys: test_model.cache_keys,
+        account: test_model
+      )
+    end
+  end
+
+  describe '#update_cache_key' do
+    it 'updates the cache key' do
+      allow(Time).to receive(:now).and_return(Time.parse('2023-05-29 00:00:00 UTC'))
+      test_model.update_cache_key('label')
+      expect(Redis::Alfred).to have_received(:set).with('idb-cache-key-account-1-label', Time.now.utc.to_i)
+    end
+
+    it 'dispatches a cache update event' do
+      test_model.update_cache_key('label')
+      expect(Rails.configuration.dispatcher).to have_received(:dispatch).with(
+        CacheKeys::ACCOUNT_CACHE_INVALIDATED,
+        kind_of(ActiveSupport::TimeWithZone),
+        cache_keys: test_model.cache_keys,
+        account: test_model
+      )
+    end
+  end
+
+  describe '#reset_cache_keys' do
+    it 'invalidates all cache keys for cacheable models' do
+      test_model.reset_cache_keys
+      test_model.class.cacheable_models.each do |model|
+        expect(Redis::Alfred).to have_received(:delete).with("idb-cache-key-account-1-#{model.name.underscore}")
+      end
+    end
+  end
+end