-module(shimmer).
-compile(no_auto_import).

-export([new/1, new_with_opts/2, new_sharded/1, new_sharded_with_opts/2, connect/2, connect_sharded/2, update_client_presence/2, update_client_presence_from_builder/2, update_all_shards_presence/2, update_all_shards_presence_from_builder/2]).
-export_type([client_options/0]).

-type client_options() :: {client_options, list(shimmer@intents:intent())}.

-spec new(binary()) -> shimmer@client:client(shimmer@ws@event_loop:message()).
new(Token) ->
    Subject = gleam@erlang@process:new_subject(),
    {client, Token, shimmer@intents:default(), Subject, {shard, 0, 1, Subject}}.

-spec new_with_opts(binary(), client_options()) -> shimmer@client:client(shimmer@ws@event_loop:message()).
new_with_opts(Token, Opts) ->
    Default = new(Token),
    erlang:setelement(3, Default, erlang:element(2, Opts)).

-spec new_sharded(binary()) -> shimmer@shards:shards_manager(shimmer@ws@event_loop:message()).
new_sharded(Token) ->
    {shards_manager,
        Token,
        shimmer@intents:default(),
        gleam@erlang@process:new_subject(),
        []}.

-spec new_sharded_with_opts(binary(), client_options()) -> shimmer@shards:shards_manager(shimmer@ws@event_loop:message()).
new_sharded_with_opts(Token, Opts) ->
    Default = new_sharded(Token),
    erlang:setelement(3, Default, erlang:element(2, Opts)).

-spec connect(
    shimmer@client:client(shimmer@ws@event_loop:message()),
    shimmer@handlers:handlers_builder(shimmer@ws@event_loop:message())
) -> {ok, shimmer@client:client(shimmer@ws@event_loop:message())} |
    {error, shimmer@internal@error:shimmer_error()}.
connect(Client, Handlers_builder) ->
    case shimmer@http@endpoints:bot_gateway(erlang:element(2, Client)) of
        {error, _try} -> {error, _try};
        {ok, Gateway_settings} ->
            Actor_spec = {spec,
                shimmer@ws@event_loop:actor_setup(
                    Client,
                    erlang:element(2, Gateway_settings),
                    shimmer@handlers:handlers_from_builder(Handlers_builder)
                ),
                30
                * 1000,
                fun shimmer@ws@event_loop:actor_loop/2},
            case begin
                _pipe = gleam@otp@actor:start_spec(Actor_spec),
                gleam@result:map_error(
                    _pipe,
                    fun(Field@0) -> {actor_error, Field@0} end
                )
            end of
                {error, _try@1} -> {error, _try@1};
                {ok, _@1} ->
                    {ok, Client}
            end
    end.

-spec add_child(
    shimmer@shards:shards_manager(shimmer@ws@event_loop:message()),
    shimmer@internal@types@responses@bot_gateway:bot_gateway_response(),
    shimmer@handlers:handlers(shimmer@ws@event_loop:message()),
    gleam@otp@supervisor:children(IMS),
    integer(),
    integer()
) -> gleam@otp@supervisor:children(IMS).
add_child(Shards, Gateway_settings, Client_handlers, Children, Current_n, Max_n) ->
    Children@1 = begin
        _pipe = Children,
        gleam@otp@supervisor:add(
            _pipe,
            gleam@otp@supervisor:worker(
                fun(_) ->
                    Actor_spec = {spec,
                        shimmer@ws@event_loop:actor_setup(
                            {client,
                                erlang:element(2, Shards),
                                erlang:element(3, Shards),
                                gleam@erlang@process:new_subject(),
                                {shard,
                                    Current_n,
                                    Max_n,
                                    erlang:element(4, Shards)}},
                            erlang:element(2, Gateway_settings),
                            Client_handlers
                        ),
                        30
                        * 1000,
                        fun shimmer@ws@event_loop:actor_loop/2},
                    gleam@otp@actor:start_spec(Actor_spec)
                end
            )
        )
    end,
    Add_more = (Current_n + 1) > Max_n,
    case Add_more of
        true ->
            add_child(
                Shards,
                Gateway_settings,
                Client_handlers,
                Children@1,
                Current_n
                + 1,
                Max_n
            );

        false ->
            Children@1
    end.

-spec connect_sharded(
    shimmer@shards:shards_manager(shimmer@ws@event_loop:message()),
    shimmer@handlers:handlers_builder(shimmer@ws@event_loop:message())
) -> {ok, shimmer@shards:shards_manager(shimmer@ws@event_loop:message())} |
    {error, shimmer@internal@error:shimmer_error()}.
connect_sharded(Shards, Handlers_builder) ->
    Client_handlers = shimmer@handlers:handlers_from_builder(Handlers_builder),
    case shimmer@http@endpoints:bot_gateway(erlang:element(2, Shards)) of
        {error, _try} -> {error, _try};
        {ok, Gateway_settings} ->
            Supervisor_spec = {spec,
                1,
                5,
                1,
                fun(Children) ->
                    add_child(
                        Shards,
                        Gateway_settings,
                        Client_handlers,
                        Children,
                        0,
                        erlang:element(3, Gateway_settings)
                    )
                end},
            case begin
                _pipe = gleam@otp@supervisor:start_spec(Supervisor_spec),
                gleam@result:map_error(
                    _pipe,
                    fun(Field@0) -> {actor_error, Field@0} end
                )
            end of
                {error, _try@1} -> {error, _try@1};
                {ok, _@1} ->
                    {ok, Shards}
            end
    end.

-spec update_client_presence(
    shimmer@client:client(shimmer@ws@event_loop:message()),
    shimmer@types@presence:presence()
) -> shimmer@client:client(shimmer@ws@event_loop:message()).
update_client_presence(Client, Presence) ->
    _pipe = erlang:element(4, Client),
    gleam@erlang@process:send(_pipe, {update_presence, Presence}),
    Client.

-spec update_client_presence_from_builder(
    shimmer@client:client(shimmer@ws@event_loop:message()),
    shimmer@builders@presence_builder:presence_builder()
) -> {ok, shimmer@client:client(shimmer@ws@event_loop:message())} |
    {error, shimmer@internal@error:shimmer_error()}.
update_client_presence_from_builder(Client, Builder) ->
    case shimmer@builders@presence_builder:build(Builder) of
        {error, _try} -> {error, _try};
        {ok, Built_presence} ->
            {ok, update_client_presence(Client, Built_presence)}
    end.

-spec update_all_shards_presence(
    shimmer@shards:shards_manager(shimmer@ws@event_loop:message()),
    shimmer@types@presence:presence()
) -> shimmer@shards:shards_manager(shimmer@ws@event_loop:message()).
update_all_shards_presence(Shards, Presence) ->
    _pipe = erlang:element(4, Shards),
    gleam@erlang@process:send(_pipe, {update_presence, Presence}),
    Shards.

-spec update_all_shards_presence_from_builder(
    shimmer@shards:shards_manager(shimmer@ws@event_loop:message()),
    shimmer@builders@presence_builder:presence_builder()
) -> {ok, shimmer@shards:shards_manager(shimmer@ws@event_loop:message())} |
    {error, shimmer@internal@error:shimmer_error()}.
update_all_shards_presence_from_builder(Shards, Builder) ->
    case shimmer@builders@presence_builder:build(Builder) of
        {error, _try} -> {error, _try};
        {ok, Built_presence} ->
            {ok, update_all_shards_presence(Shards, Built_presence)}
    end.