upgrade to phoenix 1.7

lib/cannery_web/html_helpers.ex

@@ -0,0 +1,46 @@
+defmodule CanneryWeb.HTMLHelpers do
+  @moduledoc """
+  Contains common helpers that are used for rendering
+  """
+
+  use Phoenix.Component
+
+  @doc """
+  Displays emoji as text emoji if SHIBAO_MODE is set to true :)
+  """
+  @spec display_emoji(String.t()) :: String.t()
+  def display_emoji("😔") do
+    if Application.get_env(:cannery, CanneryWeb.ViewHelpers)[:shibao_mode], do: "q_q", else: "😔"
+  end
+
+  def display_emoji(other_emoji), do: other_emoji
+
+  @doc """
+  Displays content in a QR code as a base64 encoded PNG
+  """
+  @spec qr_code_image(String.t()) :: String.t()
+  @spec qr_code_image(String.t(), width :: non_neg_integer()) :: String.t()
+  def qr_code_image(content, width \\ 384) do
+    img_data =
+      content
+      |> EQRCode.encode()
+      |> EQRCode.png(width: width)
+      |> Base.encode64()
+
+    "data:image/png;base64," <> img_data
+  end
+
+  @doc """
+  Get a random color in `#ffffff` hex format
+
+  ## Examples
+
+      iex> random_color()
+      "#cc0066"
+  """
+  @spec random_color() :: <<_::7>>
+  def random_color do
+    ["#cc0066", "#ff6699", "#6666ff", "#0066cc", "#00cc66", "#669900", "#ff9900", "#996633"]
+    |> Enum.random()
+  end
+end