discord: rename DiscordApiClient to DiscordWebhookService.

app/logical/discord_api_client.rb

@@ -1,56 +0,0 @@
-class DiscordApiClient
-  attr_reader :webhook_id, :webhook_secret, :http
-
-  def initialize(webhook_id: Danbooru.config.discord_webhook_id, webhook_secret: Danbooru.config.discord_webhook_secret, http: Danbooru::Http.new)
-    @webhook_id = webhook_id
-    @webhook_secret = webhook_secret
-    @http = http
-  end
-
-  def enabled?
-    webhook_id.present? && webhook_secret.present?
-  end
-
-  # https://discord.com/developers/docs/resources/webhook#execute-webhook
-  def post_message(forum_post)
-    return unless enabled?
-
-    http.post(webhook_url, params: { wait: true }, json: build_message(forum_post))
-  end
-
-  # https://discord.com/developers/docs/resources/channel#embed-object
-  def build_message(forum_post)
-    {
-      embeds: [{
-        title: forum_post.topic.title,
-        description: convert_dtext(forum_post.body),
-        timestamp: forum_post.created_at.iso8601,
-        url: Routes.url_for(forum_post),
-        author: {
-          name: forum_post.creator.name,
-          url: Routes.url_for(forum_post.creator)
-        },
-        fields: [
-          {
-            name: "Replies",
-            value: forum_post.topic.response_count,
-            inline: true
-          },
-          {
-            name: "Users",
-            value: forum_post.topic.forum_posts.distinct.count(:creator_id),
-            inline: true
-          }
-        ]
-      }]
-    }
-  end
-
-  def convert_dtext(dtext)
-    DText.to_markdown(dtext).truncate(2000)
-  end
-
-  def webhook_url
-    "https://discord.com/api/webhooks/#{webhook_id}/#{webhook_secret}"
-  end
-end