gilly

-module(gilly@openapi@openapi).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/gilly/openapi/openapi.gleam").
-export([openapi_decoder/0, from_json_string/1]).
-export_type([server/0, open_a_p_i/0, info/0, components/0, path_item/0]).

-if(?OTP_RELEASE >= 27).
-define(MODULEDOC(Str), -moduledoc(Str)).
-define(DOC(Str), -doc(Str)).
-else.
-define(MODULEDOC(Str), -compile([])).
-define(DOC(Str), -compile([])).
-endif.

-type server() :: {server, binary()}.

-type open_a_p_i() :: {open_a_p_i,
        gilly@openapi@version:version(),
        info(),
        list(server()),
        list({binary(), path_item()}),
        gleam@option:option(components())}.

-type info() :: {info, binary(), binary(), gleam@option:option(binary())}.

-type components() :: {components,
        list({binary(), gilly@openapi@schema:schema()})}.

-type path_item() :: {path_item,
        gleam@option:option(gilly@openapi@operation:operation()),
        gleam@option:option(gilly@openapi@operation:operation()),
        gleam@option:option(gilly@openapi@operation:operation()),
        gleam@option:option(gilly@openapi@operation:operation()),
        gleam@option:option(gilly@openapi@operation:operation())}.

-file("src/gilly/openapi/openapi.gleam", 27).
-spec server_decoder() -> gleam@dynamic@decode:decoder(server()).
server_decoder() ->
    gleam@dynamic@decode:field(
        <<"url"/utf8>>,
        {decoder, fun gleam@dynamic@decode:decode_string/1},
        fun(Url) -> gleam@dynamic@decode:success({server, Url}) end
    ).

-file("src/gilly/openapi/openapi.gleam", 65).
?DOC(" Handle decode errors by converting them into our custom `Error` type.\n").
-spec handle_decode_errors(list(gleam@dynamic@decode:decode_error())) -> gilly@openapi@error:error().
handle_decode_errors(Errors) ->
    Version_unsupported = gleam@list:find_map(
        Errors,
        fun(E) ->
            {decode_error, Expected, _, _} = E,
            case gleam@string:split_once(
                Expected,
                <<"Unsupported OpenAPI version: "/utf8>>
            ) of
                {ok, {_, Version}} ->
                    {ok, Version};

                {error, _} ->
                    {error, E}
            end
        end
    ),
    case Version_unsupported of
        {ok, Version@1} ->
            {unsupported_version, Version@1};

        {error, _} ->
            {parse_error, Errors}
    end.

-file("src/gilly/openapi/openapi.gleam", 84).
-spec info_decoder() -> gleam@dynamic@decode:decoder(info()).
info_decoder() ->
    gleam@dynamic@decode:field(
        <<"title"/utf8>>,
        {decoder, fun gleam@dynamic@decode:decode_string/1},
        fun(Title) ->
            gleam@dynamic@decode:field(
                <<"version"/utf8>>,
                {decoder, fun gleam@dynamic@decode:decode_string/1},
                fun(Version) ->
                    gleam@dynamic@decode:optional_field(
                        <<"description"/utf8>>,
                        none,
                        gleam@dynamic@decode:optional(
                            {decoder, fun gleam@dynamic@decode:decode_string/1}
                        ),
                        fun(Description) ->
                            gleam@dynamic@decode:success(
                                {info, Title, Version, Description}
                            )
                        end
                    )
                end
            )
        end
    ).

-file("src/gilly/openapi/openapi.gleam", 99).
-spec components_decoder() -> gleam@dynamic@decode:decoder(components()).
components_decoder() ->
    gleam@dynamic@decode:field(
        <<"schemas"/utf8>>,
        begin
            _pipe = gleam@dynamic@decode:dict(
                {decoder, fun gleam@dynamic@decode:decode_string/1},
                gilly@openapi@schema:schema_decoder()
            ),
            gleam@dynamic@decode:map(_pipe, fun maps:to_list/1)
        end,
        fun(Schemas) -> gleam@dynamic@decode:success({components, Schemas}) end
    ).

-file("src/gilly/openapi/openapi.gleam", 118).
-spec path_item_decoder() -> gleam@dynamic@decode:decoder(path_item()).
path_item_decoder() ->
    gleam@dynamic@decode:optional_field(
        <<"get"/utf8>>,
        none,
        gleam@dynamic@decode:optional(
            gilly@openapi@operation:operation_decoder()
        ),
        fun(Get) ->
            gleam@dynamic@decode:optional_field(
                <<"post"/utf8>>,
                none,
                gleam@dynamic@decode:optional(
                    gilly@openapi@operation:operation_decoder()
                ),
                fun(Post) ->
                    gleam@dynamic@decode:optional_field(
                        <<"put"/utf8>>,
                        none,
                        gleam@dynamic@decode:optional(
                            gilly@openapi@operation:operation_decoder()
                        ),
                        fun(Put) ->
                            gleam@dynamic@decode:optional_field(
                                <<"delete"/utf8>>,
                                none,
                                gleam@dynamic@decode:optional(
                                    gilly@openapi@operation:operation_decoder()
                                ),
                                fun(Delete) ->
                                    gleam@dynamic@decode:optional_field(
                                        <<"patch"/utf8>>,
                                        none,
                                        gleam@dynamic@decode:optional(
                                            gilly@openapi@operation:operation_decoder(
                                                
                                            )
                                        ),
                                        fun(Patch) ->
                                            gleam@dynamic@decode:success(
                                                {path_item,
                                                    Get,
                                                    Post,
                                                    Put,
                                                    Delete,
                                                    Patch}
                                            )
                                        end
                                    )
                                end
                            )
                        end
                    )
                end
            )
        end
    ).

-file("src/gilly/openapi/openapi.gleam", 32).
-spec openapi_decoder() -> gleam@dynamic@decode:decoder(open_a_p_i()).
openapi_decoder() ->
    gleam@dynamic@decode:field(
        <<"info"/utf8>>,
        info_decoder(),
        fun(Info) ->
            gleam@dynamic@decode:field(
                <<"openapi"/utf8>>,
                gilly@openapi@version:version_decoder(),
                fun(Version) ->
                    gleam@dynamic@decode:optional_field(
                        <<"servers"/utf8>>,
                        [],
                        gleam@dynamic@decode:list(server_decoder()),
                        fun(Servers) ->
                            gleam@dynamic@decode:optional_field(
                                <<"paths"/utf8>>,
                                [],
                                begin
                                    _pipe = gleam@dynamic@decode:dict(
                                        {decoder,
                                            fun gleam@dynamic@decode:decode_string/1},
                                        path_item_decoder()
                                    ),
                                    gleam@dynamic@decode:map(
                                        _pipe,
                                        fun maps:to_list/1
                                    )
                                end,
                                fun(Paths) ->
                                    gleam@dynamic@decode:optional_field(
                                        <<"components"/utf8>>,
                                        none,
                                        gleam@dynamic@decode:optional(
                                            components_decoder()
                                        ),
                                        fun(Components) ->
                                            gleam@dynamic@decode:success(
                                                {open_a_p_i,
                                                    Version,
                                                    Info,
                                                    Servers,
                                                    Paths,
                                                    Components}
                                            )
                                        end
                                    )
                                end
                            )
                        end
                    )
                end
            )
        end
    ).

-file("src/gilly/openapi/openapi.gleam", 54).
-spec from_json_string(binary()) -> {ok, open_a_p_i()} |
    {error, gilly@openapi@error:error()}.
from_json_string(Json_string) ->
    _pipe = gleam@json:parse(Json_string, openapi_decoder()),
    gleam@result:map_error(_pipe, fun(E) -> case E of
                {unable_to_decode, Errors} ->
                    handle_decode_errors(Errors);

                _ ->
                    {json_error, E}
            end end).