sprocket

-module(sprocket@context).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([has_id/2, dep/1, compare_deps/2, new/5, prepare_for_reconciliation/1, fetch_or_init_hook/2, update_hook/3, push_event_handler/2, get_event_handler/2, push_client_hook/2, get_client_hook/3, emit_event/4, provider/3]).
-export_type([element_id/0, event_handler/0, client_hook_id/0, attribute/0, element/0, updater/1, effect_result/0, callback_result/0, memo_result/0, hook_id/0, hook/0, compared/1, component_wip/0, context/0]).

-type element_id() :: any().

-type event_handler() :: {event_handler,
        sprocket@internal@utils@unique:unique(element_id()),
        binary(),
        fun((gleam@dynamic:dynamic_()) -> nil)}.

-type client_hook_id() :: {client_hook_id,
        sprocket@internal@utils@unique:unique(element_id()),
        binary(),
        sprocket@internal@utils@unique:unique(hook_id())}.

-type attribute() :: {attribute, binary(), gleam@dynamic:dynamic_()} |
    {event, binary(), fun((gleam@dynamic:dynamic_()) -> nil)} |
    {client_hook, sprocket@internal@utils@unique:unique(hook_id()), binary()}.

-type element() :: {element, binary(), list(attribute()), list(element())} |
    {component,
        fun((context(), gleam@dynamic:dynamic_()) -> {context(), element()}),
        gleam@dynamic:dynamic_()} |
    {fragment, list(element())} |
    {debug, binary(), gleam@option:option(gleam@dynamic:dynamic_()), element()} |
    {keyed, binary(), element()} |
    {ignore_update, element()} |
    {provider, binary(), gleam@dynamic:dynamic_(), element()} |
    {text, binary()} |
    {custom, binary(), binary()}.

-type updater(JJI) :: {updater, fun((JJI) -> {ok, nil} | {error, nil})}.

-type effect_result() :: {effect_result,
        gleam@option:option(fun(() -> nil)),
        gleam@option:option(list(gleam@dynamic:dynamic_()))}.

-type callback_result() :: {callback_result,
        gleam@option:option(list(gleam@dynamic:dynamic_()))}.

-type memo_result() :: {memo_result,
        gleam@option:option(list(gleam@dynamic:dynamic_()))}.

-type hook_id() :: any().

-type hook() :: {callback,
        sprocket@internal@utils@unique:unique(hook_id()),
        fun(() -> nil),
        gleam@option:option(callback_result())} |
    {memo,
        sprocket@internal@utils@unique:unique(hook_id()),
        gleam@dynamic:dynamic_(),
        gleam@option:option(memo_result())} |
    {effect,
        sprocket@internal@utils@unique:unique(hook_id()),
        fun(() -> gleam@option:option(fun(() -> nil))),
        list(gleam@dynamic:dynamic_()),
        gleam@option:option(effect_result())} |
    {reducer,
        sprocket@internal@utils@unique:unique(hook_id()),
        gleam@dynamic:dynamic_(),
        fun(() -> nil)} |
    {state,
        sprocket@internal@utils@unique:unique(hook_id()),
        gleam@dynamic:dynamic_()} |
    {client,
        sprocket@internal@utils@unique:unique(hook_id()),
        binary(),
        gleam@option:option(fun((binary(), gleam@option:option(gleam@dynamic:dynamic_()), fun((binary(), gleam@option:option(binary())) -> nil)) -> nil))}.

-type compared(JJJ) :: {changed, JJJ} | unchanged.

-type component_wip() :: {component_wip,
        sprocket@internal@utils@ordered_map:ordered_map(integer(), hook()),
        integer(),
        boolean()}.

-type context() :: {context,
        element(),
        component_wip(),
        list(event_handler()),
        list(client_hook_id()),
        fun(() -> nil),
        fun((sprocket@internal@utils@unique:unique(hook_id()), fun((hook()) -> hook())) -> nil),
        fun((sprocket@internal@utils@unique:unique(hook_id()), binary(), gleam@option:option(binary())) -> nil),
        gleam@erlang@process:subject(ids@cuid:message()),
        gleam@dict:dict(binary(), gleam@dynamic:dynamic_())}.

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 113).
-spec has_id(hook(), sprocket@internal@utils@unique:unique(hook_id())) -> boolean().
has_id(Hook, Hook_id) ->
    case Hook of
        {callback, Id, _, _} when Id =:= Hook_id ->
            true;

        {memo, Id@1, _, _} when Id@1 =:= Hook_id ->
            true;

        {effect, Id@2, _, _, _} when Id@2 =:= Hook_id ->
            true;

        {state, Id@3, _} when Id@3 =:= Hook_id ->
            true;

        {client, Id@4, _, _} when Id@4 =:= Hook_id ->
            true;

        _ ->
            false
    end.

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 130).
-spec dep(any()) -> gleam@dynamic:dynamic_().
dep(Dependency) ->
    gleam_stdlib:identity(Dependency).

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 134).
-spec compare_deps(
    list(gleam@dynamic:dynamic_()),
    list(gleam@dynamic:dynamic_())
) -> compared(list(gleam@dynamic:dynamic_())).
compare_deps(Prev_deps, Deps) ->
    case gleam@list:strict_zip(Prev_deps, Deps) of
        {error, _} ->
            sprocket@internal@exceptions:throw_on_unexpected_deps_mismatch(
                {<<"compare_deps"/utf8>>, Prev_deps, Deps}
            );

        {ok, Zipped_deps} ->
            case gleam@list:all(
                Zipped_deps,
                fun(Z) ->
                    {A, B} = Z,
                    A =:= B
                end
            ) of
                true ->
                    unchanged;

                _ ->
                    {changed, Deps}
            end
    end.

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 177).
-spec new(
    element(),
    gleam@erlang@process:subject(ids@cuid:message()),
    gleam@option:option(fun((sprocket@internal@utils@unique:unique(hook_id()), binary(), gleam@option:option(binary())) -> nil)),
    fun(() -> nil),
    fun((sprocket@internal@utils@unique:unique(hook_id()), fun((hook()) -> hook())) -> nil)
) -> context().
new(View, Cuid_channel, Emit, Render_update, Update_hook) ->
    {context,
        View,
        {component_wip, sprocket@internal@utils@ordered_map:new(), 0, true},
        [],
        [],
        Render_update,
        Update_hook,
        gleam@option:unwrap(Emit, fun(_, _, _) -> nil end),
        Cuid_channel,
        maps:new()}.

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 197).
-spec prepare_for_reconciliation(context()) -> context().
prepare_for_reconciliation(Ctx) ->
    erlang:setelement(5, erlang:setelement(4, Ctx, []), []).

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 201).
-spec fetch_or_init_hook(context(), fun(() -> hook())) -> {context(),
    hook(),
    integer()}.
fetch_or_init_hook(Ctx, Init) ->
    Index = erlang:element(3, erlang:element(3, Ctx)),
    Hooks = erlang:element(2, erlang:element(3, Ctx)),
    case sprocket@internal@utils@ordered_map:get(Hooks, Index) of
        {ok, Hook} ->
            {erlang:setelement(
                    3,
                    Ctx,
                    erlang:setelement(3, erlang:element(3, Ctx), Index + 1)
                ),
                Hook,
                Index};

        {error, nil} ->
            case erlang:element(4, erlang:element(3, Ctx)) of
                true ->
                    nil;

                false ->
                    sprocket@internal@logger:error(
                        <<<<"
            Hook not found for index: "/utf8,
                                (erlang:integer_to_binary(Index))/binary>>/binary,
                            ". This indicates a hook was dynamically
            created since first render which is not allowed.
          "/utf8>>
                    ),
                    erlang:error(#{gleam_error => panic,
                            message => <<"`panic` expression evaluated."/utf8>>,
                            module => <<"sprocket/context"/utf8>>,
                            function => <<"fetch_or_init_hook"/utf8>>,
                            line => 228})
            end,
            Hook@1 = Init(),
            {erlang:setelement(
                    3,
                    Ctx,
                    {component_wip,
                        sprocket@internal@utils@ordered_map:insert(
                            erlang:element(2, erlang:element(3, Ctx)),
                            Index,
                            Hook@1
                        ),
                        Index + 1,
                        erlang:element(4, erlang:element(3, Ctx))}
                ),
                Hook@1,
                Index}
    end.

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 251).
-spec update_hook(context(), hook(), integer()) -> context().
update_hook(Ctx, Hook, Index) ->
    erlang:setelement(
        3,
        Ctx,
        erlang:setelement(
            2,
            erlang:element(3, Ctx),
            sprocket@internal@utils@ordered_map:update(
                erlang:element(2, erlang:element(3, Ctx)),
                Index,
                Hook
            )
        )
    ).

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 261).
-spec push_event_handler(context(), event_handler()) -> context().
push_event_handler(Ctx, Handler) ->
    erlang:setelement(4, Ctx, [Handler | erlang:element(4, Ctx)]).

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 265).
-spec get_event_handler(
    context(),
    sprocket@internal@utils@unique:unique(element_id())
) -> {context(), {ok, event_handler()} | {error, nil}}.
get_event_handler(Ctx, Id) ->
    Handler = gleam@list:find(
        erlang:element(4, Ctx),
        fun(H) ->
            {event_handler, I, _, _} = H,
            I =:= Id
        end
    ),
    {Ctx, Handler}.

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 278).
-spec push_client_hook(context(), client_hook_id()) -> context().
push_client_hook(Ctx, Hook) ->
    erlang:setelement(5, Ctx, [Hook | erlang:element(5, Ctx)]).

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 282).
-spec get_client_hook(
    context(),
    sprocket@internal@utils@unique:unique(element_id()),
    binary()
) -> {context(), {ok, client_hook_id()} | {error, nil}}.
get_client_hook(Ctx, Id, Name) ->
    Hook = gleam@list:find(
        erlang:element(5, Ctx),
        fun(H) ->
            {client_hook_id, I, N, _} = H,
            (I =:= Id) andalso (N =:= Name)
        end
    ),
    {Ctx, Hook}.

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 296).
-spec emit_event(
    context(),
    sprocket@internal@utils@unique:unique(hook_id()),
    binary(),
    gleam@option:option(binary())
) -> nil.
emit_event(Ctx, Id, Name, Payload) ->
    (erlang:element(8, Ctx))(Id, Name, Payload).

-file("/home/runner/work/sprocket/sprocket/src/sprocket/context.gleam", 305).
-spec provider(binary(), any(), element()) -> element().
provider(Key, Value, Element) ->
    {provider, Key, gleam_stdlib:identity(Value), Element}.