-module(dove).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function]).

-export([connect/3, request/5]).
-export_type([method/0, request_option/1, body/0]).

-type method() :: get |
    put |
    post |
    head |
    patch |
    trace |
    delete |
    connect |
    options.

-type request_option(HNV) :: {body, body()} |
    {headers, list({binary(), binary()})} |
    {query_params, list({binary(), binary()})} |
    {response_decoder,
        fun((gleam@dynamic:dynamic_()) -> {ok, HNV} |
            {error, list(gleam@dynamic:decode_error())})}.

-type body() :: {json, binary()} | {plain_text, binary()}.

-spec connect(binary(), integer(), integer()) -> {ok,
        dove@client:connection(any())} |
    {error, gleam@otp@actor:start_error()}.
connect(Host, Port, Timeout) ->
    dove@client:connect(Host, Port, Timeout).

-spec get_query_params(list(request_option(any()))) -> list({binary(), binary()}).
get_query_params(Options) ->
    case gleam@list:find_map(Options, fun(Opt) -> case Opt of
                {query_params, Params} ->
                    {ok, Params};

                _ ->
                    {error, nil}
            end end) of
        {ok, Params@1} ->
            Params@1;

        {error, nil} ->
            []
    end.

-spec get_decoder(list(request_option(HOG))) -> gleam@option:option(fun((gleam@dynamic:dynamic_()) -> {ok,
        HOG} |
    {error, list(gleam@dynamic:decode_error())})).
get_decoder(Options) ->
    case gleam@list:find_map(Options, fun(Opt) -> case Opt of
                {response_decoder, Decoder} ->
                    {ok, Decoder};

                _ ->
                    {error, nil}
            end end) of
        {ok, Decoder@1} ->
            {some, Decoder@1};

        {error, nil} ->
            none
    end.

-spec get_headers(list(request_option(any()))) -> list({binary(), binary()}).
get_headers(Options) ->
    case gleam@list:find_map(Options, fun(Opt) -> case Opt of
                {headers, Headers} ->
                    {ok, Headers};

                _ ->
                    {error, nil}
            end end) of
        {ok, Headers@1} ->
            Headers@1;

        {error, nil} ->
            []
    end.

-spec get_body(list(request_option(any()))) -> gleam@option:option(body()).
get_body(Options) ->
    case gleam@list:find_map(Options, fun(Opt) -> case Opt of
                {body, Body} ->
                    {ok, Body};

                _ ->
                    {error, nil}
            end end) of
        {ok, Body@1} ->
            {some, Body@1};

        {error, nil} ->
            none
    end.

-spec request(
    dove@client:connection(HNX),
    method(),
    binary(),
    list(request_option(HNX)),
    integer()
) -> {ok,
        gleam@erlang@process:subject({ok, dove@response:response(HNX)} |
            {error, dove@error:error()})} |
    {error, dove@error:error()}.
request(Conn, Method, Path, Options, Timeout) ->
    _assert_subject = gleam@list:key_find(
        [{get, <<"GET"/utf8>>},
            {put, <<"PUT"/utf8>>},
            {post, <<"POST"/utf8>>},
            {head, <<"HEAD"/utf8>>},
            {patch, <<"PATCH"/utf8>>},
            {trace, <<"TRACE"/utf8>>},
            {delete, <<"DELETE"/utf8>>},
            {connect, <<"CONNECT"/utf8>>},
            {options, <<"OPTIONS"/utf8>>}],
        Method
    ),
    {ok, Method@1} = case _assert_subject of
        {ok, _} -> _assert_subject;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"dove"/utf8>>,
                        function => <<"request"/utf8>>,
                        line => 46})
    end,
    Query_params = get_query_params(Options),
    Headers = get_headers(Options),
    Body = get_body(Options),
    Decoder = get_decoder(Options),
    {Body@3, Headers@1} = case Body of
        {some, {json, Body@1}} ->
            {{some, Body@1},
                gleam@list:append(
                    Headers,
                    [{<<"content-type"/utf8>>, <<"application/json"/utf8>>},
                        {<<"content-length"/utf8>>,
                            begin
                                _pipe = Body@1,
                                _pipe@1 = gleam@string:length(_pipe),
                                gleam@int:to_string(_pipe@1)
                            end}]
                )};

        {some, {plain_text, Body@2}} ->
            {{some, Body@2},
                gleam@list:append(
                    Headers,
                    [{<<"content-type"/utf8>>, <<"text/plain"/utf8>>},
                        {<<"content-length"/utf8>>,
                            begin
                                _pipe@2 = Body@2,
                                _pipe@3 = gleam@string:length(_pipe@2),
                                gleam@int:to_string(_pipe@3)
                            end}]
                )};

        none ->
            {none, Headers}
    end,
    gleam@result:then(
        dove@request:encode(
            erlang:element(2, Conn),
            Method@1,
            Path,
            Query_params,
            Headers@1,
            Body@3
        ),
        fun(Request) ->
            Subject = gleam@erlang@process:new_subject(),
            gleam@erlang@process:send(
                erlang:element(3, Conn),
                {request, Request, Subject, Decoder, Timeout}
            ),
            {ok, Subject}
        end
    ).