117 lines
3.6 KiB
Elixir
117 lines
3.6 KiB
Elixir
defmodule LabelmakerWeb.Tools do
|
|
# for the ~p sigil
|
|
use Phoenix.VerifiedRoutes,
|
|
endpoint: LabelmakerWeb.Endpoint,
|
|
router: LabelmakerWeb.Router,
|
|
statics: LabelmakerWeb.static_paths()
|
|
|
|
alias LabelmakerWeb.Constants
|
|
|
|
def process_parameters(parameters) do
|
|
parameters =
|
|
Constants.defaults()
|
|
|> Map.new(fn {k, v} -> {Atom.to_string(k), v} end)
|
|
|> Map.merge(parameters)
|
|
|
|
parameters =
|
|
Constants.defaults()
|
|
|> Map.new(fn {k, v} -> {Atom.to_string(k), v} end)
|
|
|> Map.merge(parameters)
|
|
|> Map.take(Constants.permitted_keys())
|
|
|> Map.new(fn {k, v} -> {String.to_atom(k), v} end)
|
|
|> Enum.map(fn
|
|
{:align, align} ->
|
|
{:align, process_alignment(align |> String.downcase())}
|
|
|
|
{:font, font} ->
|
|
{:font, Constants.font_map()[String.downcase(font)]}
|
|
|
|
{:height, height} ->
|
|
{:height, process_height(height, parameters)}
|
|
|
|
{:label, label} ->
|
|
{:label, process_label(label)}
|
|
|
|
{:label_too_long, _} ->
|
|
{:label_too_long, String.length(parameters["label"]) > Constants.max_label_length()}
|
|
|
|
{:link, _} ->
|
|
{:link, generate_link(parameters)}
|
|
|
|
{:preview_height, _} ->
|
|
{:preview_height, calculate_preview_height(parameters)}
|
|
|
|
{:preview_text, _} ->
|
|
{:preview_text, String.split(parameters["label"], "\\n")}
|
|
|
|
{:width, width} ->
|
|
{:width, process_width(width, parameters)}
|
|
|
|
pair ->
|
|
pair
|
|
end)
|
|
|> Enum.filter(fn
|
|
{:align, align} -> align in Constants.permitted_gravity()
|
|
{:color, color} -> color in Constants.colors()
|
|
{:font, font} -> font in Map.values(Constants.font_map())
|
|
{:outline, outline} -> outline in Constants.outlines()
|
|
{:size, size} -> size in Constants.sizes()
|
|
_ -> true
|
|
end)
|
|
|> Map.new()
|
|
|
|
Map.merge(Constants.defaults(), parameters)
|
|
end
|
|
|
|
defp process_alignment("left"), do: "west"
|
|
defp process_alignment("middle"), do: "center"
|
|
defp process_alignment("right"), do: "east"
|
|
defp process_alignment(alignment), do: alignment |> String.downcase()
|
|
|
|
defp process_height("", parameters) do
|
|
parameters["width"] |> String.to_integer() |> max(0) |> min(Constants.max_height())
|
|
end
|
|
|
|
defp process_height(height, _parameters) do
|
|
height |> String.to_integer() |> max(0) |> min(Constants.max_height())
|
|
end
|
|
|
|
defp process_label(label) do
|
|
if String.length(label) > Constants.max_label_length() do
|
|
String.slice(label, 0, Constants.max_label_length())
|
|
else
|
|
label
|
|
end
|
|
end
|
|
|
|
defp generate_link(%{"height" => "", "label" => label, "width" => ""} = parameters) do
|
|
~p"/#{label}?#{Map.take(parameters, ["color", "font", "outline", "size"])}"
|
|
end
|
|
|
|
defp generate_link(%{"label" => label} = parameters) do
|
|
~p"/#{label}?#{Map.take(parameters, ["color", "font", "height", "outline", "width"])}"
|
|
end
|
|
|
|
defp process_width("", parameters) do
|
|
parameters["height"] |> String.to_integer() |> max(0) |> min(Constants.max_width())
|
|
end
|
|
|
|
defp process_width(width, _parameters) do
|
|
width |> String.to_integer() |> max(0) |> min(Constants.max_width())
|
|
end
|
|
|
|
defp calculate_preview_height(parameters) do
|
|
size = parameters["size"] |> String.to_integer()
|
|
line_breaks = Regex.scan(~r/#{Regex.escape("\\n")}/, parameters["label"]) |> length()
|
|
|
|
size + size * line_breaks
|
|
end
|
|
|
|
def outline(_, error: true), do: outline(Constants.danger(), false)
|
|
def outline("none", _error), do: ""
|
|
|
|
def outline(color, _error),
|
|
do:
|
|
"text-shadow: -1px -1px 0 #{color}, 1px -1px 0 #{color}, -1px 1px 0 #{color}, 1px 1px 0 #{color};"
|
|
end
|