Restructure omni services and add Chatwoot research snapshot

research/chatwoot/lib/global_config.rb

@@ -0,0 +1,57 @@
+class GlobalConfig
+  VERSION = 'V1'.freeze
+  KEY_PREFIX = 'GLOBAL_CONFIG'.freeze
+  DEFAULT_EXPIRY = 1.day
+
+  class << self
+    def get(*args)
+      config_keys = *args
+      config = {}
+
+      config_keys.each do |config_key|
+        config[config_key] = load_from_cache(config_key)
+      end
+
+      typecast_config(config)
+      config.with_indifferent_access
+    end
+
+    def get_value(arg)
+      load_from_cache(arg)
+    end
+
+    def clear_cache
+      cached_keys = $alfred.with { |conn| conn.keys("#{VERSION}:#{KEY_PREFIX}:*") }
+      (cached_keys || []).each do |cached_key|
+        $alfred.with { |conn| conn.expire(cached_key, 0) }
+      end
+    end
+
+    private
+
+    def typecast_config(config)
+      general_configs = ConfigLoader.new.general_configs
+      config.each do |config_key, config_value|
+        config_type = general_configs.find { |c| c['name'] == config_key }&.dig('type')
+        config[config_key] = ActiveRecord::Type::Boolean.new.cast(config_value) if config_type == 'boolean'
+      end
+    end
+
+    def load_from_cache(config_key)
+      cache_key = "#{VERSION}:#{KEY_PREFIX}:#{config_key}"
+      cached_value = $alfred.with { |conn| conn.get(cache_key) }
+
+      if cached_value.blank?
+        value_from_db = db_fallback(config_key)
+        cached_value = { value: value_from_db }.to_json
+        $alfred.with { |conn| conn.set(cache_key, cached_value, { ex: DEFAULT_EXPIRY }) }
+      end
+
+      JSON.parse(cached_value)['value']
+    end
+
+    def db_fallback(config_key)
+      InstallationConfig.find_by(name: config_key)&.value
+    end
+  end
+end