-module(yodel@input).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/yodel/input.gleam").
-export([detect_input/1, get_extension_from_path/1, read_file/1, get_content/1]).
-export_type([input/0]).

-type input() :: {file, binary()} | {content, binary()}.

-file("src/yodel/input.gleam", 21).
-spec detect_input(binary()) -> input().
detect_input(Input) ->
    case begin
        _pipe = gleam@string:trim(Input),
        simplifile_erl:is_file(_pipe)
    end of
        {ok, true} ->
            {file, Input};

        _ ->
            {content, Input}
    end.

-file("src/yodel/input.gleam", 28).
-spec get_extension_from_path(binary()) -> binary().
get_extension_from_path(Path) ->
    case begin
        _pipe = Path,
        _pipe@1 = gleam@string:trim(_pipe),
        _pipe@2 = string:lowercase(_pipe@1),
        _pipe@3 = gleam@string:split(_pipe@2, <<"."/utf8>>),
        gleam@list:last(_pipe@3)
    end of
        {ok, Ext} ->
            string:lowercase(Ext);

        _ ->
            <<""/utf8>>
    end.

-file("src/yodel/input.gleam", 42).
-spec map_simplifile_error(simplifile:file_error()) -> yodel@errors:config_error().
map_simplifile_error(Error) ->
    {file_error, case Error of
            eacces ->
                {file_permission_denied, simplifile:describe_error(Error)};

            enoent ->
                {file_not_found, simplifile:describe_error(Error)};

            _ ->
                {file_read_error, simplifile:describe_error(Error)}
        end}.

-file("src/yodel/input.gleam", 37).
-spec read_file(binary()) -> {ok, binary()} |
    {error, yodel@errors:config_error()}.
read_file(Path) ->
    _pipe = simplifile:read(Path),
    gleam@result:map_error(_pipe, fun(Err) -> map_simplifile_error(Err) end).

-file("src/yodel/input.gleam", 14).
-spec get_content(binary()) -> {ok, binary()} |
    {error, yodel@errors:config_error()}.
get_content(Input) ->
    case begin
        _pipe = Input,
        detect_input(_pipe)
    end of
        {file, Path} ->
            read_file(Path);

        {content, Content} ->
            {ok, Content}
    end.