54 lines
1.6 KiB
Elixir
54 lines
1.6 KiB
Elixir
defmodule LabelmakerWeb.Tools do
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# for the ~p sigil
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use Phoenix.VerifiedRoutes,
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endpoint: LabelmakerWeb.Endpoint,
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router: LabelmakerWeb.Router,
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statics: LabelmakerWeb.static_paths()
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alias LabelmakerWeb.Constants
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def process_parameters(parameters) do
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%{"label" => label, "size" => size} =
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Constants.defaults()
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|> Map.new(fn {k, v} -> {Atom.to_string(k), v} end)
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|> Map.merge(parameters)
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link = ~p"/#{label}?#{Map.take(parameters, ["color", "font", "outline", "size"])}"
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line_breaks = Regex.scan(~r/#{Regex.escape("\\n")}/, label) |> length()
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size = String.to_integer(size)
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parameters =
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parameters
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|> Map.take(Constants.permitted_keys())
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|> Map.new(fn {k, v} -> {String.to_atom(k), v} end)
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|> Enum.map(fn
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{:label, label} ->
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if String.length(label) > Constants.max_label_length(),
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do: {:label, String.slice(label, 0, Constants.max_label_length() + 1)},
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else: {:label, label}
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{:link, _} ->
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{:link, link}
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{:preview_height, _} ->
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{:preview_height, size + size * line_breaks}
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{:preview_text, _} ->
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{:preview_text, String.split(label, "\\n")}
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pair ->
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pair
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end)
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|> Enum.filter(fn
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{:color, color} -> color in Constants.colors()
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{:font, font} -> font in Constants.fonts()
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{:outline, outline} -> outline in Constants.outlines()
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{:size, size} -> size in Constants.sizes()
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_ -> true
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end)
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|> Map.new()
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Map.merge(Constants.defaults(), parameters)
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end
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end
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