-module(themis@internal@metric@counter).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([init_record/2, increment_by/3, increment/2, delete_record/2, print/2, new_name/1, new/2]).
-export_type([counter/0, counter_error/0]).

-type counter() :: any().

-type counter_error() :: record_already_exists |
    record_not_found |
    {name_error, themis@internal@metric:metric_error()}.

-file("/git/Themis/src/themis/internal/metric/counter.gleam", 32).
-spec init_record(
    themis@internal@metric:metric(counter(), themis@number:number_(), nil),
    themis@internal@label:label_set()
) -> themis@internal@metric:metric(counter(), themis@number:number_(), nil).
init_record(From, Labels) ->
    erlang:setelement(
        3,
        From,
        begin
            _pipe = erlang:element(3, From),
            gleam@dict:insert(_pipe, Labels, {int, 0})
        end
    ).

-file("/git/Themis/src/themis/internal/metric/counter.gleam", 46).
-spec increment_by(
    themis@internal@metric:metric(counter(), themis@number:number_(), nil),
    themis@internal@label:label_set(),
    themis@number:number_()
) -> themis@internal@metric:metric(counter(), themis@number:number_(), nil).
increment_by(From, Labels, By) ->
    New_val = begin
        _pipe = gleam_stdlib:map_get(erlang:element(3, From), Labels),
        _pipe@1 = gleam@result:unwrap(_pipe, themis@number:integer(0)),
        themis@number:add(_pipe@1, By)
    end,
    erlang:setelement(
        3,
        From,
        begin
            _pipe@2 = erlang:element(3, From),
            gleam@dict:insert(_pipe@2, Labels, New_val)
        end
    ).

-file("/git/Themis/src/themis/internal/metric/counter.gleam", 39).
-spec increment(
    themis@internal@metric:metric(counter(), themis@number:number_(), nil),
    themis@internal@label:label_set()
) -> themis@internal@metric:metric(counter(), themis@number:number_(), nil).
increment(From, Labels) ->
    increment_by(From, Labels, {int, 1}).

-file("/git/Themis/src/themis/internal/metric/counter.gleam", 58).
-spec delete_record(
    themis@internal@metric:metric(counter(), themis@number:number_(), nil),
    themis@internal@label:label_set()
) -> themis@internal@metric:metric(counter(), themis@number:number_(), nil).
delete_record(From, Labels) ->
    erlang:setelement(
        3,
        From,
        gleam@dict:delete(erlang:element(3, From), Labels)
    ).

-file("/git/Themis/src/themis/internal/metric/counter.gleam", 65).
-spec print(
    themis@internal@metric:metric(counter(), themis@number:number_(), nil),
    themis@internal@metric:metric_name()
) -> binary().
print(Metric, Name) ->
    Name@1 = themis@internal@metric:name_to_string(Name),
    Help = <<<<<<"# HELP "/utf8, Name@1/binary>>/binary, " "/utf8>>/binary,
        (erlang:element(2, Metric))/binary>>,
    Type_ = <<<<"# TYPE "/utf8, Name@1/binary>>/binary, " counter"/utf8>>,
    _pipe = (gleam@dict:fold(
        erlang:element(3, Metric),
        [<<<<<<Help/binary, "\n"/utf8>>/binary, Type_/binary>>/binary,
                "\n"/utf8>>],
        fun(Current, Labels, Value) ->
            [<<<<<<<<Name@1/binary,
                                (themis@internal@label:print(Labels))/binary>>/binary,
                            " "/utf8>>/binary,
                        (themis@number:print(Value))/binary>>/binary,
                    "\n"/utf8>> |
                Current]
        end
    )),
    _pipe@1 = lists:reverse(_pipe),
    _pipe@2 = gleam_stdlib:identity(_pipe@1),
    unicode:characters_to_binary(_pipe@2).

-file("/git/Themis/src/themis/internal/metric/counter.gleam", 86).
-spec new_name(binary()) -> {ok, themis@internal@metric:metric_name()} |
    {error, themis@internal@metric:metric_error()}.
new_name(Name) ->
    _pipe = (<<Name/binary, "_total"/utf8>>),
    themis@internal@metric:new_name(_pipe, [<<"counter"/utf8>>]).

-file("/git/Themis/src/themis/internal/metric/counter.gleam", 21).
-spec new(binary(), binary()) -> {ok,
        {themis@internal@metric:metric_name(),
            themis@internal@metric:metric(counter(), themis@number:number_(), nil)}} |
    {error, themis@internal@metric:metric_error()}.
new(Name, Description) ->
    R = begin
        _pipe = Name,
        new_name(_pipe)
    end,
    gleam@result:map(
        R,
        fun(Name@1) -> {Name@1, {metric, Description, maps:new(), nil}} end
    ).