-module(spectator@internal@common).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([encode_params/1, get_param/2, truncate_float/1, format_percentage/1, static_file/1, emit_after/4]).

-file("/Users/jonas/Projects/spectator/src/spectator/internal/common.gleam", 30).
-spec encode_params(list({binary(), binary()})) -> binary().
encode_params(Params) ->
    Pair = fun(T) ->
        gleam@string_builder:from_strings(
            [gleam@uri:percent_encode(erlang:element(1, T)),
                <<"="/utf8>>,
                gleam@uri:percent_encode(erlang:element(2, T))]
        )
    end,
    case Params of
        [] ->
            <<""/utf8>>;

        _ ->
            _pipe = Params,
            _pipe@1 = gleam@list:map(_pipe, Pair),
            _pipe@2 = gleam@list:intersperse(
                _pipe@1,
                gleam@string_builder:from_string(<<"&"/utf8>>)
            ),
            _pipe@3 = gleam@string_builder:concat(_pipe@2),
            _pipe@4 = gleam@string_builder:prepend(_pipe@3, <<"?"/utf8>>),
            gleam@string_builder:to_string(_pipe@4)
    end.

-file("/Users/jonas/Projects/spectator/src/spectator/internal/common.gleam", 50).
-spec get_param(list({binary(), binary()}), binary()) -> {ok, binary()} |
    {error, nil}.
get_param(Params, Key) ->
    gleam@list:find_map(Params, fun(P) -> case P of
                {K, V} when K =:= Key ->
                    gleam@uri:percent_decode(V);

                _ ->
                    {error, nil}
            end end).

-file("/Users/jonas/Projects/spectator/src/spectator/internal/common.gleam", 60).
-spec truncate_float(float()) -> binary().
truncate_float(Value) ->
    spectator_ffi:truncate_float(Value).

-file("/Users/jonas/Projects/spectator/src/spectator/internal/common.gleam", 62).
-spec format_percentage(float()) -> binary().
format_percentage(Value) ->
    <<(spectator_ffi:truncate_float(Value))/binary, "%"/utf8>>.

-file("/Users/jonas/Projects/spectator/src/spectator/internal/common.gleam", 66).
-spec static_file(binary()) -> binary().
static_file(Name) ->
    _assert_subject = gleam_erlang_ffi:priv_directory(<<"spectator"/utf8>>),
    {ok, Priv} = case _assert_subject of
        {ok, _} -> _assert_subject;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Pattern match failed, no pattern matched the value."/utf8>>,
                        value => _assert_fail,
                        module => <<"spectator/internal/common"/utf8>>,
                        function => <<"static_file"/utf8>>,
                        line => 67})
    end,
    _assert_subject@1 = simplifile:read(
        <<<<Priv/binary, "/"/utf8>>/binary, Name/binary>>
    ),
    {ok, Data} = case _assert_subject@1 of
        {ok, _} -> _assert_subject@1;
        _assert_fail@1 ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Pattern match failed, no pattern matched the value."/utf8>>,
                        value => _assert_fail@1,
                        module => <<"spectator/internal/common"/utf8>>,
                        function => <<"static_file"/utf8>>,
                        line => 68})
    end,
    Data.

-file("/Users/jonas/Projects/spectator/src/spectator/internal/common.gleam", 72).
-spec emit_after(
    integer(),
    APTW,
    gleam@option:option(gleam@erlang@process:subject(APTW)),
    fun((gleam@erlang@process:subject(APTW)) -> APTW)
) -> lustre@effect:effect(APTW).
emit_after(Delay, Msg, Subject, Subject_created_message) ->
    case Subject of
        {some, Self} ->
            lustre@effect:from(
                fun(_) ->
                    _ = gleam@erlang@process:send_after(Self, Delay, Msg),
                    nil
                end
            );

        none ->
            lustre@server_component:select(
                fun(Dispatch, Subject@1) ->
                    Selector = begin
                        _pipe = gleam_erlang_ffi:new_selector(),
                        gleam@erlang@process:selecting(
                            _pipe,
                            Subject@1,
                            fun(Msg@1) -> Msg@1 end
                        )
                    end,
                    _ = gleam@erlang@process:send_after(Subject@1, Delay, Msg),
                    Dispatch(Subject_created_message(Subject@1)),
                    Selector
                end
            )
    end.