-module(glitzer@multi).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).
-define(FILEPATH, "src/glitzer/multi.gleam").
-export([new_same_line/0, insert_progress_inline/3, insert_spinner_inline/3, run_line/1, tick_inline/2, tick_by_inline/3]).
-export_type([style_wrapper/0, line_state/0, same_line/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.

-opaque style_wrapper() :: {progress, glitzer@progress:progress_style()} |
    {spinner, glitzer@spinner:spinner_style()}.

-opaque line_state() :: {line_state, list({binary(), style_wrapper()})}.

-opaque same_line() :: {same_line,
        integer(),
        gleam@option:option(repeatedly:repeater(line_state())),
        line_state()}.

-file("src/glitzer/multi.gleam", 80).
?DOC(
    " Create a new `SameLine` that can print multiple spinners/progress bars on\n"
    " the same line.\n"
).
-spec new_same_line() -> same_line().
new_same_line() ->
    {same_line, 100, none, {line_state, []}}.

-file("src/glitzer/multi.gleam", 85).
?DOC(" Insert a `ProgressStyle` at the end of a given `SameLine`.\n").
-spec insert_progress_inline(
    same_line(),
    binary(),
    glitzer@progress:progress_style()
) -> same_line().
insert_progress_inline(L, N, P) ->
    _record = L,
    {same_line,
        erlang:element(2, _record),
        erlang:element(3, _record),
        {line_state,
            lists:append(
                erlang:element(2, erlang:element(4, L)),
                [{N,
                        {progress,
                            glitzer@progress:with_newline_on_finished(P, false)}}]
            )}}.

-file("src/glitzer/multi.gleam", 101).
?DOC(" Insert a `SpinnerStyle` at the end of a given `SameLine`.\n").
-spec insert_spinner_inline(
    same_line(),
    binary(),
    glitzer@spinner:spinner_style()
) -> same_line().
insert_spinner_inline(L, N, S) ->
    _record = L,
    {same_line,
        erlang:element(2, _record),
        erlang:element(3, _record),
        {line_state,
            lists:append(
                erlang:element(2, erlang:element(4, L)),
                [{N, {spinner, S}}]
            )}}.

-file("src/glitzer/multi.gleam", 174).
-spec print_bar_inline(glitzer@progress:progress_style()) -> nil.
print_bar_inline(P) ->
    gleam_stdlib:print_error(
        <<(glitzer@progress:get_raw_bar(P))/binary, " "/utf8>>
    ).

-file("src/glitzer/multi.gleam", 178).
-spec print_spinner_inline(glitzer@spinner:spinner_style()) -> nil.
print_spinner_inline(S) ->
    gleam_stdlib:print_error(
        <<<<<<(erlang:element(4, erlang:element(4, S)))/binary,
                    (glitzer@spinner:get_current_frame_string(S))/binary>>/binary,
                (erlang:element(5, erlang:element(4, S)))/binary>>/binary,
            " "/utf8>>
    ).

-file("src/glitzer/multi.gleam", 130).
?DOC(
    " Run the line. This will print the whole line every `line.refresh_rate`\n"
    " milliseconds. It will also automatically tick all inline spinners with\n"
    " regard to their tick rate.\n"
    "\n"
    " <details>\n"
    " <summary>Example:</summary>\n"
    "\n"
    " ```gleam\n"
    "  let multi =\n"
    "    multi.new_same_line()\n"
    "    |> multi.insert_spinner_inline(\"s1\", spinner.pulsating_spinner())\n"
    "    |> multi.insert_spinner_inline(\n"
    "      \"s2\",\n"
    "      spinner.with_tick_rate(spinner.default_spinner(), 500),\n"
    "    )\n"
    "    |> multi.run_line\n"
    " ```\n"
    " </details>\n"
).
-spec run_line(same_line()) -> same_line().
run_line(L) ->
    Repeater = repeatedly_ffi:call(
        erlang:element(2, L),
        erlang:element(4, L),
        fun(State, I) ->
            gleam_stdlib:print(
                <<<<(<<"\x{001b}[?25l"/utf8>>)/binary,
                        (<<"\x{001b}[2K"/utf8>>)/binary>>/binary,
                    (<<"\r"/utf8>>)/binary>>
            ),
            New_line = begin
                _pipe = gleam@yielder:from_list(erlang:element(2, State)),
                _pipe@1 = gleam@yielder:map(
                    _pipe,
                    fun(El) ->
                        {Name, Value} = El,
                        Value@1 = case Value of
                            {progress, P} ->
                                {progress, P};

                            {spinner, S} ->
                                Time_gone_by = I * erlang:element(2, L),
                                Spin_count = gleam@result:unwrap(
                                    gleam@int:floor_divide(
                                        Time_gone_by,
                                        erlang:element(2, S)
                                    ),
                                    0
                                ),
                                Left_to_tick = Spin_count - erlang:element(
                                    6,
                                    erlang:element(4, S)
                                ),
                                {spinner,
                                    glitzer@spinner:tick_by(S, Left_to_tick)}
                        end,
                        {Name, Value@1}
                    end
                ),
                gleam@yielder:to_list(_pipe@1)
            end,
            _pipe@2 = gleam@yielder:from_list(New_line),
            gleam@yielder:each(
                _pipe@2,
                fun(El@1) ->
                    {_, Value@2} = El@1,
                    case Value@2 of
                        {progress, P@1} ->
                            print_bar_inline(P@1);

                        {spinner, S@1} ->
                            print_spinner_inline(S@1)
                    end
                end
            ),
            {line_state, New_line}
        end
    ),
    _record = L,
    {same_line,
        erlang:element(2, _record),
        {some, Repeater},
        erlang:element(4, _record)}.

-file("src/glitzer/multi.gleam", 189).
?DOC(
    " Tick a spinner or progress bar with the given name by 1. Does nothing if\n"
    " the spinner/progress bar doesn't exist.\n"
).
-spec tick_inline(same_line(), binary()) -> same_line().
tick_inline(L, N) ->
    Value = gleam@list:key_find(erlang:element(2, erlang:element(4, L)), N),
    New_state = case Value of
        {ok, Value@1} ->
            case Value@1 of
                {progress, P} ->
                    {line_state,
                        gleam@list:key_set(
                            erlang:element(2, erlang:element(4, L)),
                            N,
                            {progress, glitzer@progress:tick(P)}
                        )};

                {spinner, S} ->
                    {line_state,
                        gleam@list:key_set(
                            erlang:element(2, erlang:element(4, L)),
                            N,
                            {spinner, glitzer@spinner:tick(S)}
                        )}
            end;

        {error, _} ->
            erlang:element(4, L)
    end,
    case erlang:element(3, L) of
        {some, R} ->
            repeatedly:set_state(R, New_state);

        none ->
            nil
    end,
    _record = L,
    {same_line,
        erlang:element(2, _record),
        erlang:element(3, _record),
        New_state}.

-file("src/glitzer/multi.gleam", 219).
?DOC(
    " Tick a spinner or progress bar with the given name by `i`. Does nothing if\n"
    " the spinner/progress bar doesn't exist.\n"
).
-spec tick_by_inline(same_line(), binary(), integer()) -> same_line().
tick_by_inline(L, N, I) ->
    Value = gleam@list:key_find(erlang:element(2, erlang:element(4, L)), N),
    New_state = case Value of
        {ok, Value@1} ->
            case Value@1 of
                {progress, P} ->
                    {line_state,
                        gleam@list:key_set(
                            erlang:element(2, erlang:element(4, L)),
                            N,
                            {progress, glitzer@progress:tick_by(P, I)}
                        )};

                {spinner, S} ->
                    {line_state,
                        gleam@list:key_set(
                            erlang:element(2, erlang:element(4, L)),
                            N,
                            {spinner, glitzer@spinner:tick_by(S, I)}
                        )}
            end;

        {error, _} ->
            erlang:element(4, L)
    end,
    case erlang:element(3, L) of
        {some, R} ->
            repeatedly:set_state(R, New_state);

        none ->
            nil
    end,
    _record = L,
    {same_line,
        erlang:element(2, _record),
        erlang:element(3, _record),
        New_state}.