-module(refrakt@cli@build).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/refrakt/cli/build.gleam").
-export([run/0]).

-file("src/refrakt/cli/build.gleam", 94).
-spec int_to_string(integer()) -> binary().
int_to_string(N) ->
    case N of
        0 ->
            <<"0"/utf8>>;

        1 ->
            <<"1"/utf8>>;

        2 ->
            <<"2"/utf8>>;

        3 ->
            <<"3"/utf8>>;

        4 ->
            <<"4"/utf8>>;

        5 ->
            <<"5"/utf8>>;

        _ ->
            <<"several"/utf8>>
    end.

-file("src/refrakt/cli/build.gleam", 15).
-spec run() -> nil.
run() ->
    App = refrakt@cli@project:app_name(),
    Islands_dir = <<<<"src/"/utf8, App/binary>>/binary, "/web/islands"/utf8>>,
    Output_dir = <<"priv/static/js/islands"/utf8>>,
    case simplifile_erl:read_directory(Islands_dir) of
        {error, _} ->
            gleam_stdlib:println(
                <<"No islands found in "/utf8, Islands_dir/binary>>
            ),
            gleam_stdlib:println(
                <<"Generate one with: refrakt gen island <name>"/utf8>>
            );

        {ok, Files} ->
            Islands = begin
                _pipe = Files,
                gleam@list:filter(
                    _pipe,
                    fun(F) ->
                        gleam_stdlib:string_ends_with(F, <<".gleam"/utf8>>)
                        andalso not gleam_stdlib:string_ends_with(
                            F,
                            <<"_embed.gleam"/utf8>>
                        )
                    end
                )
            end,
            case Islands of
                [] ->
                    gleam_stdlib:println(
                        <<"No island modules found in "/utf8,
                            Islands_dir/binary>>
                    );

                _ ->
                    gleam_stdlib:println(
                        <<<<"Building "/utf8,
                                (int_to_string(erlang:length(Islands)))/binary>>/binary,
                            " island(s)..."/utf8>>
                    ),
                    gleam_stdlib:println(<<""/utf8>>),
                    _ = simplifile:create_directory_all(Output_dir),
                    Build_output = refrakt_build_ffi:run_cmd(
                        <<"gleam build --target javascript"/utf8>>
                    ),
                    case gleam_stdlib:contains_string(
                        Build_output,
                        <<"error"/utf8>>
                    ) of
                        true ->
                            gleam_stdlib:println(<<"Build failed:"/utf8>>),
                            gleam_stdlib:println(Build_output);

                        false ->
                            gleam@list:each(
                                Islands,
                                fun(Island_file) ->
                                    Name = gleam@string:replace(
                                        Island_file,
                                        <<".gleam"/utf8>>,
                                        <<""/utf8>>
                                    ),
                                    Source = <<<<<<<<<<<<"build/dev/javascript/"/utf8,
                                                            App/binary>>/binary,
                                                        "/"/utf8>>/binary,
                                                    App/binary>>/binary,
                                                "/web/islands/"/utf8>>/binary,
                                            Name/binary>>/binary,
                                        ".mjs"/utf8>>,
                                    Dest = <<<<<<Output_dir/binary, "/"/utf8>>/binary,
                                            Name/binary>>/binary,
                                        ".js"/utf8>>,
                                    case simplifile:read(Source) of
                                        {ok, Content} ->
                                            case simplifile:write(Dest, Content) of
                                                {ok, _} -> nil;
                                                _assert_fail ->
                                                    erlang:error(
                                                            #{gleam_error => let_assert,
                                                                message => <<"Pattern match failed, no pattern matched the value."/utf8>>,
                                                                file => <<?FILEPATH/utf8>>,
                                                                module => <<"refrakt/cli/build"/utf8>>,
                                                                function => <<"run"/utf8>>,
                                                                line => 71,
                                                                value => _assert_fail,
                                                                start => 2222,
                                                                'end' => 2272,
                                                                pattern_start => 2233,
                                                                pattern_end => 2238}
                                                        )
                                            end,
                                            gleam_stdlib:println(
                                                <<<<"  "/utf8, Dest/binary>>/binary,
                                                    " ✓"/utf8>>
                                            );

                                        {error, _} ->
                                            gleam_stdlib:println(
                                                <<<<<<"  "/utf8, Name/binary>>/binary,
                                                        " — could not find compiled JS at "/utf8>>/binary,
                                                    Source/binary>>
                                            )
                                    end
                                end
                            ),
                            gleam_stdlib:println(<<""/utf8>>),
                            gleam_stdlib:println(
                                <<"Done. Islands available at /static/js/islands/"/utf8>>
                            )
                    end
            end
    end.