-module(glixir@genserver).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).
-define(FILEPATH, "src/glixir/genserver.gleam").
-export([start_link/2, start_link_named/3, call_timeout/3, call/2, cast/2, pid/1, lookup_name/1, call_named/2, cast_named/2, stop/1]).
-export_type([gen_server/0, gen_server_error/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.

?MODULEDOC(
    " Type-safe GenServer interop for Gleam\n"
    " \n"
    " This module provides a safe interface to Elixir GenServers from Gleam.\n"
).

-opaque gen_server() :: {gen_server, gleam@erlang@process:pid_()}.

-type gen_server_error() :: {start_error, binary()} |
    call_timeout |
    {call_error, binary()} |
    {cast_error, binary()} |
    {not_found, binary()}.

-file("src/glixir/genserver.gleam", 52).
?DOC(" Start a GenServer using Module.start_link/1\n").
-spec start_link(binary(), any()) -> {ok, gen_server()} |
    {error, gen_server_error()}.
start_link(Module, Args) ->
    logging:log(
        debug,
        <<<<"🔍 GenServer.start_link called with module: '"/utf8, Module/binary>>/binary,
            "'"/utf8>>
    ),
    Final_module_name = case gleam_stdlib:string_starts_with(
        Module,
        <<"Elixir."/utf8>>
    ) of
        true ->
            logging:log(
                debug,
                <<"✅ Module already has Elixir. prefix: "/utf8, Module/binary>>
            ),
            Module;

        false ->
            Prefixed = <<"Elixir."/utf8, Module/binary>>,
            logging:log(
                debug,
                <<<<<<"➕ Adding Elixir. prefix: "/utf8, Module/binary>>/binary,
                        " → "/utf8>>/binary,
                    Prefixed/binary>>
            ),
            Prefixed
    end,
    logging:log(
        debug,
        <<<<"🎯 Final module name for atom creation: '"/utf8,
                Final_module_name/binary>>/binary,
            "'"/utf8>>
    ),
    Module_atom = erlang:binary_to_atom(Final_module_name),
    logging:log(
        debug,
        <<"🔧 Created atom: "/utf8, (gleam@string:inspect(Module_atom))/binary>>
    ),
    logging:log(
        debug,
        <<"🚀 Calling gen_server:start_link with args: "/utf8,
            (gleam@string:inspect(Args))/binary>>
    ),
    case gen_server:start_link(Module_atom, Args, []) of
        {ok, Pid} ->
            logging:log(
                info,
                <<"✅ GenServer started successfully: "/utf8,
                    (gleam@string:inspect(Pid))/binary>>
            ),
            {ok, {gen_server, Pid}};

        {error, Reason} ->
            logging:log(
                error,
                <<"❌ GenServer start failed: "/utf8,
                    (gleam@string:inspect(Reason))/binary>>
            ),
            {error, {start_error, gleam@string:inspect(Reason)}}
    end.

-file("src/glixir/genserver.gleam", 107).
?DOC(" Start a GenServer with a registered name\n").
-spec start_link_named(binary(), binary(), any()) -> {ok, gen_server()} |
    {error, gen_server_error()}.
start_link_named(Module, Name, Args) ->
    logging:log(
        debug,
        <<<<<<<<"🔍 GenServer.start_link_named called with module: '"/utf8,
                        Module/binary>>/binary,
                    "', name: '"/utf8>>/binary,
                Name/binary>>/binary,
            "'"/utf8>>
    ),
    Final_module_name = case gleam_stdlib:string_starts_with(
        Module,
        <<"Elixir."/utf8>>
    ) of
        true ->
            logging:log(
                debug,
                <<"✅ Module already has Elixir. prefix: "/utf8, Module/binary>>
            ),
            Module;

        false ->
            Prefixed = <<"Elixir."/utf8, Module/binary>>,
            logging:log(
                debug,
                <<<<<<"➕ Adding Elixir. prefix: "/utf8, Module/binary>>/binary,
                        " → "/utf8>>/binary,
                    Prefixed/binary>>
            ),
            Prefixed
    end,
    logging:log(
        debug,
        <<<<"🎯 Final module name for atom creation: '"/utf8,
                Final_module_name/binary>>/binary,
            "'"/utf8>>
    ),
    Module_atom = erlang:binary_to_atom(Final_module_name),
    logging:log(
        debug,
        <<"🔧 Created module atom: "/utf8,
            (gleam@string:inspect(Module_atom))/binary>>
    ),
    Name_atom = erlang:binary_to_atom(Name),
    logging:log(
        debug,
        <<"🏷️ Created name atom: "/utf8,
            (gleam@string:inspect(Name_atom))/binary>>
    ),
    Options = [gleam_stdlib:identity(
            {erlang:binary_to_atom(<<"name"/utf8>>), Name_atom}
        )],
    logging:log(
        debug,
        <<"⚙️ GenServer options: "/utf8, (gleam@string:inspect(Options))/binary>>
    ),
    logging:log(
        debug,
        <<"🚀 Calling gen_server:start_link with args: "/utf8,
            (gleam@string:inspect(Args))/binary>>
    ),
    case gen_server:start_link(Module_atom, Args, Options) of
        {ok, Pid} ->
            logging:log(
                info,
                <<<<<<"✅ Named GenServer '"/utf8, Name/binary>>/binary,
                        "' started successfully: "/utf8>>/binary,
                    (gleam@string:inspect(Pid))/binary>>
            ),
            {ok, {gen_server, Pid}};

        {error, Reason} ->
            logging:log(
                error,
                <<<<<<"❌ Named GenServer '"/utf8, Name/binary>>/binary,
                        "' start failed: "/utf8>>/binary,
                    (gleam@string:inspect(Reason))/binary>>
            ),
            {error, {start_error, gleam@string:inspect(Reason)}}
    end.

-file("src/glixir/genserver.gleam", 197).
?DOC(" Send a synchronous call with custom timeout\n").
-spec call_timeout(gen_server(), any(), integer()) -> {ok, any()} |
    {error, gen_server_error()}.
call_timeout(Server, Request, Timeout) ->
    {gen_server, Pid} = Server,
    logging:log(
        debug,
        <<<<<<"📞⏱️ GenServer.call_timeout to PID "/utf8,
                    (gleam@string:inspect(Pid))/binary>>/binary,
                " with timeout "/utf8>>/binary,
            (gleam@string:inspect(Timeout))/binary>>
    ),
    logging:log(
        debug,
        <<"📞⏱️ Request: "/utf8, (gleam@string:inspect(Request))/binary>>
    ),
    Response = gen_server:call(Pid, Request, Timeout),
    logging:log(
        debug,
        <<"📞✅ GenServer call response: "/utf8,
            (gleam@string:inspect(Response))/binary>>
    ),
    {ok, gleam_stdlib:identity(Response)}.

-file("src/glixir/genserver.gleam", 188).
?DOC(" Send a synchronous call to the GenServer (5s timeout)\n").
-spec call(gen_server(), any()) -> {ok, any()} | {error, gen_server_error()}.
call(Server, Request) ->
    logging:log(
        debug,
        <<"📞 GenServer.call with request: "/utf8,
            (gleam@string:inspect(Request))/binary>>
    ),
    call_timeout(Server, Request, 5000).

-file("src/glixir/genserver.gleam", 249).
?DOC(" Send an asynchronous cast to the GenServer\n").
-spec cast(gen_server(), any()) -> {ok, nil} | {error, gen_server_error()}.
cast(Server, Request) ->
    {gen_server, Pid} = Server,
    logging:log(
        debug,
        <<<<<<"📨 GenServer.cast to PID "/utf8,
                    (gleam@string:inspect(Pid))/binary>>/binary,
                " with request: "/utf8>>/binary,
            (gleam@string:inspect(Request))/binary>>
    ),
    Result = gen_server:cast(Pid, Request),
    logging:log(
        debug,
        <<"📨✅ GenServer cast result: "/utf8,
            (gleam@string:inspect(Result))/binary>>
    ),
    case erlang:atom_to_binary(Result) of
        <<"ok"/utf8>> ->
            logging:log(debug, <<"📨✅ Cast successful"/utf8>>),
            {ok, nil};

        Other ->
            logging:log(error, <<"📨❌ Cast failed with: "/utf8, Other/binary>>),
            {error, {cast_error, Other}}
    end.

-file("src/glixir/genserver.gleam", 303).
?DOC(" Get the PID of a GenServer\n").
-spec pid(gen_server()) -> gleam@erlang@process:pid_().
pid(Server) ->
    {gen_server, P} = Server,
    logging:log(
        debug,
        <<"🆔 GenServer.pid returning: "/utf8, (gleam@string:inspect(P))/binary>>
    ),
    P.

-file("src/glixir/genserver.gleam", 310).
?DOC(" Look up a GenServer by registered name\n").
-spec lookup_name(binary()) -> {ok, gen_server()} | {error, gen_server_error()}.
lookup_name(Name) ->
    logging:log(
        debug,
        <<<<"🔍 GenServer.lookup_name for: '"/utf8, Name/binary>>/binary,
            "'"/utf8>>
    ),
    Name_atom = erlang:binary_to_atom(Name),
    logging:log(
        debug,
        <<"🔍 Created lookup atom: "/utf8,
            (gleam@string:inspect(Name_atom))/binary>>
    ),
    Pid_result = erlang:whereis(Name_atom),
    logging:log(
        debug,
        <<"🔍 whereis result: "/utf8, (gleam@string:inspect(Pid_result))/binary>>
    ),
    case gleam_stdlib:classify_dynamic(Pid_result) of
        <<"Pid"/utf8>> ->
            logging:log(
                info,
                <<<<"🔍✅ Found GenServer PID for '"/utf8, Name/binary>>/binary,
                    "'"/utf8>>
            ),
            {ok, {gen_server, gleam_stdlib:identity(Pid_result)}};

        <<"Atom"/utf8>> ->
            logging:log(
                warning,
                <<<<"🔍❌ GenServer '"/utf8, Name/binary>>/binary,
                    "' returned atom (likely 'undefined')"/utf8>>
            ),
            {error, {not_found, Name}};

        Other ->
            logging:log(
                warning,
                <<<<<<"🔍❌ GenServer '"/utf8, Name/binary>>/binary,
                        "' not found, got type: "/utf8>>/binary,
                    Other/binary>>
            ),
            {error, {not_found, Name}}
    end.

-file("src/glixir/genserver.gleam", 224).
?DOC(" Call a named GenServer\n").
-spec call_named(binary(), any()) -> {ok, any()} | {error, gen_server_error()}.
call_named(Name, Request) ->
    logging:log(
        debug,
        <<<<<<"📞🏷️ GenServer.call_named to '"/utf8, Name/binary>>/binary,
                "' with request: "/utf8>>/binary,
            (gleam@string:inspect(Request))/binary>>
    ),
    case lookup_name(Name) of
        {ok, Server} ->
            logging:log(
                debug,
                <<"📞🏷️✅ Found named GenServer, making call"/utf8>>
            ),
            call(Server, Request);

        {error, E} ->
            logging:log(
                error,
                <<"📞🏷️❌ Named GenServer lookup failed: "/utf8,
                    (gleam@string:inspect(E))/binary>>
            ),
            {error, E}
    end.

-file("src/glixir/genserver.gleam", 278).
?DOC(" Cast to a named GenServer\n").
-spec cast_named(binary(), any()) -> {ok, nil} | {error, gen_server_error()}.
cast_named(Name, Request) ->
    logging:log(
        debug,
        <<<<<<"📨🏷️ GenServer.cast_named to '"/utf8, Name/binary>>/binary,
                "' with request: "/utf8>>/binary,
            (gleam@string:inspect(Request))/binary>>
    ),
    case lookup_name(Name) of
        {ok, Server} ->
            logging:log(
                debug,
                <<"📨🏷️✅ Found named GenServer, making cast"/utf8>>
            ),
            cast(Server, Request);

        {error, E} ->
            logging:log(
                error,
                <<"📨🏷️❌ Named GenServer lookup failed: "/utf8,
                    (gleam@string:inspect(E))/binary>>
            ),
            {error, E}
    end.

-file("src/glixir/genserver.gleam", 345).
?DOC(" Stop a GenServer gracefully\n").
-spec stop(gen_server()) -> {ok, nil} | {error, gen_server_error()}.
stop(Server) ->
    logging:log(debug, <<"🛑 GenServer.stop called"/utf8>>),
    cast(Server, erlang:binary_to_atom(<<"stop"/utf8>>)).