-module(legos@background).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/legos/background.gleam").
-export([color/1, image/1, uncropped/1, tiled/1, tiled_x/1, tiled_y/1, step/1, percent/2, px/2, gradient/2]).
-export_type([direction/0, step/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 direction() :: to_up |
    to_down |
    to_right |
    to_top_right |
    to_bottom_right |
    to_left |
    to_top_left |
    to_bottom_left |
    {to_rad, float()} |
    {to_degrees, integer()}.

-type step() :: {color_step, legos@internal@model:color()} |
    {percent_step, integer(), legos@internal@model:color()} |
    {px_step, integer(), legos@internal@model:color()}.

-file("src/legos/background.gleam", 11).
?DOC(" A background color attribute\n").
-spec color(legos@internal@model:color()) -> legos@internal@model:attribute(any(), any()).
color(Clr) ->
    {style_class,
        legos@internal@flag:bg_color(),
        {colored,
            <<"bg-"/utf8,
                (legos@internal@model:format_color_class(Clr))/binary>>,
            <<"background-color"/utf8>>,
            Clr}}.

-file("src/legos/background.gleam", 23).
?DOC(" Resize the image to fit the containing element while maintaining proportions and cropping the overflow.\n").
-spec image(binary()) -> legos@internal@model:attribute(legos@internal@model:aligned(), any()).
image(Src) ->
    {attr,
        lustre@attribute:style(
            <<"background"/utf8>>,
            <<<<"url(\""/utf8, Src/binary>>/binary,
                "\") center / cover no-repeat"/utf8>>
        )}.

-file("src/legos/background.gleam", 31).
?DOC(" A centered background image that keeps its natural proportions, but scales to fit the space.\n").
-spec uncropped(binary()) -> legos@internal@model:attribute(legos@internal@model:aligned(), any()).
uncropped(Src) ->
    {attr,
        lustre@attribute:style(
            <<"background"/utf8>>,
            <<<<"url(\""/utf8, Src/binary>>/binary,
                "\") center / contain no-repeat"/utf8>>
        )}.

-file("src/legos/background.gleam", 39).
?DOC(" Tile an image in the x and y axes.\n").
-spec tiled(binary()) -> legos@internal@model:attribute(legos@internal@model:aligned(), any()).
tiled(Src) ->
    {attr,
        lustre@attribute:style(
            <<"background"/utf8>>,
            <<<<"url(\""/utf8, Src/binary>>/binary, "\") repeat"/utf8>>
        )}.

-file("src/legos/background.gleam", 44).
?DOC(" Tile an image in the x axis.\n").
-spec tiled_x(binary()) -> legos@internal@model:attribute(legos@internal@model:aligned(), any()).
tiled_x(Src) ->
    {attr,
        lustre@attribute:style(
            <<"background"/utf8>>,
            <<<<"url(\""/utf8, Src/binary>>/binary, "\") repeat-x"/utf8>>
        )}.

-file("src/legos/background.gleam", 49).
?DOC(" Tile an image in the y axis.\n").
-spec tiled_y(binary()) -> legos@internal@model:attribute(legos@internal@model:aligned(), any()).
tiled_y(Src) ->
    {attr,
        lustre@attribute:style(
            <<"background"/utf8>>,
            <<<<"url(\""/utf8, Src/binary>>/binary, "\") repeat-y"/utf8>>
        )}.

-file("src/legos/background.gleam", 73).
?DOC(" Create a color step for gradients\n").
-spec step(legos@internal@model:color()) -> step().
step(Color) ->
    {color_step, Color}.

-file("src/legos/background.gleam", 78).
?DOC(" Create a percentage-based color step for gradients\n").
-spec percent(integer(), legos@internal@model:color()) -> step().
percent(Pct, Color) ->
    {percent_step, Pct, Color}.

-file("src/legos/background.gleam", 83).
?DOC(" Create a pixel-based color step for gradients\n").
-spec px(integer(), legos@internal@model:color()) -> step().
px(Pixels, Color) ->
    {px_step, Pixels, Color}.

-file("src/legos/background.gleam", 185).
-spec flip_angle(integer()) -> integer().
flip_angle(Angle) ->
    case (Angle + 180) > 360 of
        true ->
            (Angle + 180) - 360;

        false ->
            Angle + 180
    end.

-file("src/legos/background.gleam", 164).
-spec direction_class_prop(direction()) -> {binary(), binary()}.
direction_class_prop(Direction) ->
    case Direction of
        to_up ->
            {<<"to-up"/utf8>>, <<"to up"/utf8>>};

        to_down ->
            {<<"to-down"/utf8>>, <<"to down"/utf8>>};

        to_right ->
            {<<"to-right"/utf8>>, <<"to right"/utf8>>};

        to_top_right ->
            {<<"to-top-right"/utf8>>, <<"to top right"/utf8>>};

        to_bottom_right ->
            {<<"to-bottom-right"/utf8>>, <<"to bottom right"/utf8>>};

        to_left ->
            {<<"to-left"/utf8>>, <<"to left"/utf8>>};

        to_top_left ->
            {<<"to-top-left"/utf8>>, <<"to topleft"/utf8>>};

        to_bottom_left ->
            {<<"to-bottom-left"/utf8>>, <<"to bottom left"/utf8>>};

        {to_rad, Angle} ->
            {legos@internal@model:float_class(Angle),
                <<(gleam_stdlib:float_to_string(Angle))/binary, "rad"/utf8>>};

        {to_degrees, Angle@1} ->
            {legos@internal@model:float_class(erlang:float(flip_angle(Angle@1))),
                <<(erlang:integer_to_binary(flip_angle(Angle@1)))/binary,
                    "deg"/utf8>>}
    end.

-file("src/legos/background.gleam", 91).
?DOC(
    " A linear gradient.\n"
    " First you need to specify what direction the gradient is going by providing an angle in radians.\n"
    " `0.0` is up and `pi` is down.\n"
    " The colors will be evenly spaced.\n"
).
-spec gradient(direction(), list(step())) -> legos@internal@model:attribute(any(), any()).
gradient(Direction, Steps) ->
    To_bg_color = fun(Clr) ->
        {style_class,
            legos@internal@flag:bg_color(),
            {colored,
                <<"bg-"/utf8,
                    (legos@internal@model:format_color_class(Clr))/binary>>,
                <<"background-color"/utf8>>,
                Clr}}
    end,
    case Steps of
        [] ->
            no_attribute;

        [{color_step, Clr@1}] ->
            To_bg_color(Clr@1);

        [{percent_step, _, Clr@2}] ->
            To_bg_color(Clr@2);

        [{px_step, _, Clr@3}] ->
            To_bg_color(Clr@3);

        _ ->
            {Direction_class, Direction_prop} = direction_class_prop(Direction),
            Class_parts = begin
                _pipe = [Direction_class],
                _pipe@1 = lists:append(
                    _pipe,
                    gleam@list:map(Steps, fun(Step) -> case Step of
                                {color_step, Clr@4} ->
                                    legos@internal@model:format_color_class(
                                        Clr@4
                                    );

                                {percent_step, Position, Clr@5} ->
                                    <<<<<<(legos@internal@model:format_color_class(
                                                    Clr@5
                                                ))/binary,
                                                "-"/utf8>>/binary,
                                            (erlang:integer_to_binary(Position))/binary>>/binary,
                                        "-pct"/utf8>>;

                                {px_step, Position@1, Clr@6} ->
                                    <<<<<<(legos@internal@model:format_color_class(
                                                    Clr@6
                                                ))/binary,
                                                "-"/utf8>>/binary,
                                            (erlang:integer_to_binary(
                                                Position@1
                                            ))/binary>>/binary,
                                        "-px"/utf8>>
                            end end)
                ),
                gleam@string:join(_pipe@1, <<"-"/utf8>>)
            end,
            Color_parts = begin
                _pipe@2 = gleam@list:map(Steps, fun(Step@1) -> case Step@1 of
                            {color_step, Clr@7} ->
                                legos@internal@model:format_color(Clr@7);

                            {percent_step, Position@2, Clr@8} ->
                                <<<<<<(legos@internal@model:format_color(Clr@8))/binary,
                                            " "/utf8>>/binary,
                                        (erlang:integer_to_binary(Position@2))/binary>>/binary,
                                    "%"/utf8>>;

                            {px_step, Position@3, Clr@9} ->
                                <<<<<<(legos@internal@model:format_color(Clr@9))/binary,
                                            " "/utf8>>/binary,
                                        (erlang:integer_to_binary(Position@3))/binary>>/binary,
                                    "px"/utf8>>
                        end end),
                _pipe@3 = gleam@list:prepend(_pipe@2, Direction_prop),
                gleam@string:join(_pipe@3, <<", "/utf8>>)
            end,
            {style_class,
                legos@internal@flag:bg_gradient(),
                {single,
                    <<"bg-grad-"/utf8, Class_parts/binary>>,
                    <<"background-image"/utf8>>,
                    <<<<"linear-gradient("/utf8, Color_parts/binary>>/binary,
                        ")"/utf8>>}}
    end.