Initial pass at Synth-based ticker selection (#1392)

* Initial pass at Synth-based ticker selection

* Update _tickers.turbo_stream.erb

* Functional combobox display

* A few cleanup steps

* Linter

* Prevent long strings

* Another step towards functional combobox

* Deprecated files

* Custom Combobox implementation

* Lint

* Test suite fixes

* Lint

* Make direct use of mic codes

* Update splits

* Update trades_test.rb

app/models/security/importer.rb

@@ -1,45 +0,0 @@
-class Security::Importer
-  def initialize(provider, stock_exchange = nil)
-    @provider = provider
-    @stock_exchange = stock_exchange
-  end
-
-  def import
-    securities = @provider.fetch_tickers(exchange_mic: @stock_exchange)&.tickers
-
-    # Deduplicate securities based on ticker and exchange_mic
-    securities_to_create = securities
-      .map do |security|
-        {
-          name: security[:name],
-          ticker: security[:symbol],
-          country_code: security[:country_code],
-          exchange_mic: security[:exchange_mic],
-          exchange_acronym: security[:exchange_acronym]
-        }
-      end
-      .compact
-      .uniq { |security| [ security[:ticker], security[:exchange_mic] ] }
-
-    # First update any existing securities that only have a ticker
-    Security.where(exchange_mic: nil)
-      .where(ticker: securities_to_create.map { |s| s[:ticker] })
-      .update_all(
-        securities_to_create.map do |security|
-          {
-            name: security[:name],
-            country_code: security[:country_code],
-            exchange_mic: security[:exchange_mic],
-            exchange_acronym: security[:exchange_acronym]
-          }
-        end.first
-      )
-
-    # Then create/update any remaining securities
-    Security.upsert_all(
-      securities_to_create,
-      unique_by: [ :ticker, :exchange_mic ],
-      update_only: [ :name, :country_code, :exchange_acronym ]
-    ) unless securities_to_create.empty?
-  end
-end

app/models/security/synth_combobox_option.rb

@@ -0,0 +1,20 @@
+class Security::SynthComboboxOption
+  include ActiveModel::Model
+  include Providable
+
+  attr_accessor :symbol, :name, :logo_url, :exchange_acronym, :exchange_mic
+
+  class << self
+    def find_in_synth(query)
+      security_prices_provider.search_securities(query:, dataset: "limited", country_code: Current.family.country).securities.map { |attrs| new(**attrs) }
+    end
+  end
+
+  def id
+    "#{symbol}|#{exchange_mic}" # submitted by combobox as value
+  end
+
+  def to_combobox_display
+    "#{symbol} - #{name} (#{exchange_acronym})" # shown in combobox input when selected
+  end
+end