feat: Wire up ChromicPDF and basic download route

lib/medicode/application.ex

@@ -29,6 +29,7 @@ defmodule Medicode.Application do
         Medicode.ClassificationSupervisor,
         strategy: :one_for_one, max_restarts: 1
       },
+      ChromicPDF,
       # Start a worker by calling: Medicode.Worker.start_link(arg)
       # {Medicode.Worker, arg},
       # Start to serve requests, typically the last entry

lib/medicode_web/components/components.ex

@@ -144,6 +144,14 @@ defmodule MedicodeWeb.Components do
             <%= chunk_code.code_vector.code %>
           </span>
         </div>
+
+        <.link
+          href={~p"/transcription/reports/#{@transcription.id}"}
+          class="font-semibold text-brand hover:underline"
+          download={"transcription-report-#{@transcription.id}.pdf"}
+        >
+          Download Report
+        </.link>
       </div>
     </div>
     """

lib/medicode_web/components/transcription_report_component.ex

@@ -0,0 +1,14 @@
+defmodule MedicodeWeb.Components.TranscriptionReportComponent do
+  @moduledoc """
+  This module is responsible for rendering the transcription report component.
+  """
+
+  use Phoenix.LiveComponent
+
+  def render(assigns) do
+    ~H"""
+    <h1>Transcription</h1>
+    <p style="font-size: 200%;">ID: <%= @transcription.id %></p>
+    """
+  end
+end

lib/medicode_web/controllers/transcription_reports_controller.ex

@@ -0,0 +1,36 @@
+defmodule MedicodeWeb.TranscriptionReportsController do
+  use MedicodeWeb, :controller
+
+  alias Medicode.Transcriptions
+
+  def show(conn, _params) do
+    transcription = Transcriptions.get_transcription!(conn.params["id"])
+
+    conn = assign(conn, :transcription, transcription)
+
+    ### We will write this function later.
+    {:ok, pdf} = to_pdf(conn.assigns)
+
+    send_download(
+      conn,
+      {:binary, Base.decode64!(pdf)},
+      content_type: "application/pdf",
+      filename: "transcription_report.pdf"
+    )
+  end
+
+  defp to_pdf(assigns) do
+    [
+      content: content(assigns),
+      size: :a4
+    ]
+    |> ChromicPDF.Template.source_and_options()
+    |> ChromicPDF.print_to_pdf()
+  end
+
+  defp content(assigns) do
+    Phoenix.HTML.Safe.to_iodata(
+      MedicodeWeb.Components.TranscriptionReportComponent.render(assigns)
+    )
+  end
+end

lib/medicode_web/router.ex

@@ -69,6 +69,8 @@ defmodule MedicodeWeb.Router do
   scope "/", MedicodeWeb do
     pipe_through [:browser, :require_authenticated_user]
 
+    get "/transcription/reports/:id", TranscriptionReportsController, :show
+
     live_session :require_authenticated_user,
       on_mount: [{MedicodeWeb.UserAuth, :ensure_authenticated}] do
       live "/users/settings", UserSettingsLive, :edit

mix.exs

@@ -66,7 +66,8 @@ defmodule Medicode.MixProject do
       {:membrane_core, "~> 1.0"},
       {:membrane_raw_audio_format, "~> 0.12.0"},
       {:kino, "~> 0.12.3"},
-      {:csv, "~> 3.2"}
+      {:csv, "~> 3.2"},
+      {:chromic_pdf, "~> 1.15"}
       # {:membrane_portaudio_plugin, "~> 0.18.0"}
     ]
   end

mix.lock

@@ -10,6 +10,7 @@
   "bundlex": {:hex, :bundlex, "1.4.5", "ea06cb441af636baaf5232dced24c6b1ee5ccbe7a7cad8a348eb3100fa1d7b52", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:elixir_uuid, "~> 1.2", [hex: :elixir_uuid, repo: "hexpm", optional: false]}, {:qex, "~> 0.5", [hex: :qex, repo: "hexpm", optional: false]}, {:req, "~> 0.4.0", [hex: :req, repo: "hexpm", optional: false]}, {:zarex, "~> 1.0", [hex: :zarex, repo: "hexpm", optional: false]}], "hexpm", "bd4136100d3120740bf8eaa73ad74859d5ccd659cf0b27aa1645590a67a0172b"},
   "bunt": {:hex, :bunt, "1.0.0", "081c2c665f086849e6d57900292b3a161727ab40431219529f13c4ddcf3e7a44", [:mix], [], "hexpm", "dc5f86aa08a5f6fa6b8096f0735c4e76d54ae5c9fa2c143e5a1fc7c1cd9bb6b5"},
   "castore": {:hex, :castore, "1.0.5", "9eeebb394cc9a0f3ae56b813459f990abb0a3dedee1be6b27fdb50301930502f", [:mix], [], "hexpm", "8d7c597c3e4a64c395980882d4bca3cebb8d74197c590dc272cfd3b6a6310578"},
+  "chromic_pdf": {:hex, :chromic_pdf, "1.15.2", "da099affe93dcd3438bcb5c38f39179f7f4f72c08a8b2799b50dcc21665f01b7", [:mix], [{:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2 or ~> 1.0", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.14 or ~> 3.3 or ~> 4.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.11", [hex: :plug, repo: "hexpm", optional: true]}, {:plug_crypto, "~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:websockex, ">= 0.4.3", [hex: :websockex, repo: "hexpm", optional: true]}], "hexpm", "c0e9d62b807c7df019bc642b20eb78f3445f09260413a210a240ee080c1fc8f1"},
   "coerce": {:hex, :coerce, "1.0.1", "211c27386315dc2894ac11bc1f413a0e38505d808153367bd5c6e75a4003d096", [:mix], [], "hexpm", "b44a691700f7a1a15b4b7e2ff1fa30bebd669929ac8aa43cffe9e2f8bf051cf1"},
   "comeonin": {:hex, :comeonin, "5.4.0", "246a56ca3f41d404380fc6465650ddaa532c7f98be4bda1b4656b3a37cc13abe", [:mix], [], "hexpm", "796393a9e50d01999d56b7b8420ab0481a7538d0caf80919da493b4a6e51faf1"},
   "complex": {:hex, :complex, "0.5.0", "af2d2331ff6170b61bb738695e481b27a66780e18763e066ee2cd863d0b1dd92", [:mix], [], "hexpm", "2683bd3c184466cfb94fad74cbfddfaa94b860e27ad4ca1bffe3bff169d91ef1"},