refactor(Algolia): tweak application config (#1780)

* refactor: migrate to updated Config module

* change index suffix to default to "_test"

* chore: remove unused config

apps/algolia/config/config.exs

@@ -1,6 +1,4 @@
-# This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
-use Mix.Config
+import Config
 
 config :algolia, :config,
   app_id: {:system, "ALGOLIA_APP_ID"},
@@ -18,33 +16,8 @@ config :algolia, :indexes, [
 
 config :algolia, :track_clicks?, false
 
-config :algolia, :index_suffix, ""
+config :algolia, :index_suffix, "_test"
 
 config :algolia, :http_pool, :algolia_http_pool
 
-# This configuration is loaded before any dependency and is restricted
-# to this project. If another project depends on this project, this
-# file won't be loaded nor affect the parent project. For this reason,
-# if you want to provide default values for your application for
-# 3rd-party users, it should be done in your "mix.exs" file.
-
-# You can configure your application as:
-#
-#     config :algolia, key: :value
-#
-# and access this configuration in your application as:
-#
-#     Application.get_env(:algolia, :key)
-#
-# You can also configure a 3rd-party app:
-#
-#     config :logger, level: :info
-#
-
-# It is also possible to import configuration files, relative to this
-# directory. For example, you can emulate configuration per environment
-# by uncommenting the line below and defining dev.exs, test.exs and such.
-# Configuration from the imported file will override the ones defined
-# here (which is why it is important to import them last).
-#
-import_config "#{Mix.env()}.exs"
+import_config "#{config_env()}.exs"

apps/algolia/config/dev.exs

@@ -1 +1 @@
-use Mix.Config
+import Config

apps/algolia/config/prod.exs

@@ -1,10 +1,6 @@
-use Mix.Config
-
-config :algolia, :keys,
-  app_id: "${ALGOLIA_APP_ID}",
-  search: "${ALGOLIA_SEARCH_KEY}",
-  write: "${ALGOLIA_WRITE_KEY}"
+import Config
 
 config :algolia, :click_analytics_url, "https://insights.algolia.io"
 config :algolia, :track_clicks?, true
 config :algolia, :track_analytics?, true
+config :algolia, :index_suffix, ""

apps/algolia/config/test.exs

@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :algolia, :config,
   app_id: "ALGOLIA_APP_ID",
@@ -14,5 +14,3 @@ config :algolia, :indexes, [
 ]
 
 config :algolia, :click_analytics_url, :not_set
-
-config :algolia, :index_suffix, "_test"