Add support for printing via Octoprint API

app/services/print/octoprint_service.rb

@@ -0,0 +1,59 @@
+require "faraday"
+require "faraday/multipart"
+
+class Print::OctoprintService
+  # i18n-tasks-use t("print_hosts.protocols.octoprint")
+  PROTOCOL = "octoprint".freeze
+
+  INPUT_TYPES = [Mime[:gcode]].freeze
+
+  def initialize(print_host:)
+    @print_host = print_host
+  end
+
+  def ok?
+    response = connection.get(info_uri, {}, headers)
+    response.success?
+  rescue => ex
+    Rails.logger.warn(ex.message)
+    false
+  end
+
+  def upload(file:, start_print: true)
+    raise ArgumentError unless file.mime_type.to_sym == :gcode
+    connection.post(upload_uri, payload(file: file, start_print: start_print), headers)
+  end
+
+  private
+
+  def connection
+    Faraday.new do
+      it.request :multipart
+    end
+  end
+
+  def payload(file:, start_print: true)
+    {
+      print: start_print ? "true" : "false",
+      file: Faraday::Multipart::FilePart.new(
+        file.attachment.open,
+        file.mime_type.to_s,
+        file.filename
+      )
+    }
+  end
+
+  def info_uri
+    "#{@print_host.endpoint}/api/server"
+  end
+
+  def upload_uri
+    "#{@print_host.endpoint}/api/files/local"
+  end
+
+  def headers
+    {
+      "X-Api-Key" => @print_host.credentials
+    }.compact_blank
+  end
+end

config/locales/cs.yml

@@ -1001,6 +1001,7 @@ cs:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/de.yml

@@ -1005,6 +1005,7 @@ de:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/en.yml

@@ -1001,6 +1001,7 @@ en:
       sent: File sent to printer
     protocols:
       moonraker: Moonraker / Klipper
+      octoprint: Octoprint
     update:
       success: Printer created successfully
   renderer:

config/locales/es.yml

@@ -1001,6 +1001,7 @@ es:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/fr.yml

@@ -1003,6 +1003,7 @@ fr:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/ja.yml

@@ -1001,6 +1001,7 @@ ja:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/nl.yml

@@ -1001,6 +1001,7 @@ nl:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/pl.yml

@@ -1001,6 +1001,7 @@ pl:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/pt.yml

@@ -1001,6 +1001,7 @@ pt:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/ru.yml

@@ -1001,6 +1001,7 @@ ru:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer:

config/locales/zh-CN.yml

@@ -1001,6 +1001,7 @@ zh-CN:
       sent:
     protocols:
       moonraker:
+      octoprint:
     update:
       success:
   renderer: