Music streaming on ATProto!
feat(appview): add `at://` URI struct
+65
-1
+4
-1
.gitignore
+4
-1
.gitignore
+61
apps/backend/lib/comet/aturi.ex
+61
apps/backend/lib/comet/aturi.ex
···
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defmodule Comet.AtURI do
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use TypedStruct
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@did "did:(?:plc|web):[a-zA-Z0-9._:%-]*[a-zA-Z0-9._-]"
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@handle "(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?"
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@nsid "[a-zA-Z]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(\.[a-zA-Z]([a-zA-Z0-9]{0,62})?)"
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@authority "(?<authority>(?:#{@did})|(?:#{@handle}))"
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@collection "(?<collection>#{@nsid})"
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@rkey "(?<rkey>[a-zA-Z0-9.-_:~]{1,512})"
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@re ~r"^at://#{@authority}(?:/#{@collection}(?:/#{@rkey})?)?$"
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typedstruct do
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field :authority, String.t(), enforce: true
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field :collection, String.t() | nil
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field :rkey, String.t() | nil
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end
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@spec new(String.t()) :: {:ok, t()} | :error
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def new(string) when is_binary(string) do
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case Regex.named_captures(@re, string) do
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%{} = captures -> {:ok, from_named_captures(captures)}
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nil -> :error
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end
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end
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@spec new!(String.t()) :: t()
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def new!(string) when is_binary(string) do
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case new(string) do
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{:ok, uri} -> uri
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:error -> raise ArgumentError, message: "Malformed at:// URI"
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end
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end
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@spec match?(String.t()) :: boolean()
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def match?(string), do: Regex.match?(@re, string)
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@spec to_string(t()) :: String.t()
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def to_string(%__MODULE__{} = uri) do
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"at://#{uri.authority}/#{uri.collection}/#{uri.rkey}"
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|> String.trim_trailing("/")
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end
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defp from_named_captures(%{"authority" => authority, "collection" => "", "rkey" => ""}),
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do: %__MODULE__{authority: authority}
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defp from_named_captures(%{"authority" => authority, "collection" => collection, "rkey" => ""}),
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do: %__MODULE__{authority: authority, collection: collection}
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defp from_named_captures(%{
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"authority" => authority,
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"collection" => collection,
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"rkey" => rkey
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}),
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do: %__MODULE__{authority: authority, collection: collection, rkey: rkey}
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end
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defimpl String.Chars, for: Comet.AtURI do
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def to_string(%Comet.AtURI{} = uri), do: Comet.AtURI.to_string(uri)
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end