import { CircleConfig } from "konva/lib/shapes/Circle";
import {
  BaseItem,
  generateSnapInfos,
  getBaseItem,
  getRectSnapPoints,
} from "../util.ts";
import { getMouseColors } from "@/utils/colors.ts";
import { lineCenter, Pos } from "@/utils/math.ts";
import { Transform } from "konva/lib/Util";
import { InteractiveFix, InteractiveTo, MatResponseProps } from "../index.ts";
import { MathUtils } from "three";

export { default as Component } from "./circle.vue";
export { default as TempComponent } from "./temp-circle.vue";

export const shapeName = "圆形";
export const defaultStyle = {
  dash: [30, 0],
  stroke: "#000000",
  strokeWidth: 5,
  fontSize: 22,
  fixed: true,
  align: "center",
  fontStyle: "normal",
  fontColor: "#000000",
  padding: 8,
};

export const addMode = "area";
export const fixedStrokeOptions = [1, 2, 4];

export const getMouseStyle = (data: CircleData) => {
  const fillStatus = data.fill && getMouseColors(data.fill);
  const strokeStatus = data.stroke && getMouseColors(data.stroke);
  const strokeWidth = data.strokeWidth;
  return {
    default: { stroke: data.stroke, strokeWidth, fill: data.fill },
    hover: {
      fill: fillStatus && fillStatus.hover,
      stroke: strokeStatus && strokeStatus.hover,
    },
    select: {
      fill: fillStatus && fillStatus.select,
      stroke: strokeStatus && strokeStatus.select,
    },
    focus: {
      fill: fillStatus && fillStatus.hover,
      stroke: strokeStatus && strokeStatus.hover,
    },
    press: {
      fill: fillStatus && fillStatus.press,
      stroke: strokeStatus && strokeStatus.press,
    },
  };
};

export const getSnapInfos = (data: CircleData) => {
  return generateSnapInfos(getSnapPoints(data), true, false);
};

export const getSnapPoints = (data: CircleData) => {
  const dec = new Transform(data.mat).decompose();
  const points = getRectSnapPoints(data.radiusX * 2, data.radiusY * 2).map(
    (v) => ({
      x: v.x + dec.x,
      y: v.y + dec.y,
    })
  );
  // const size = data.radius * 2;
  return points;
};

export type CircleData = Partial<typeof defaultStyle> &
  BaseItem & {
    opacity?: number;
    fill?: string;
    mat: number[];
    radiusX: number;
    radiusY: number;
    content?: string;
    desc?: string
    padding?: number;
  };

export const dataToConfig = (data: CircleData): CircleConfig => ({
  ...defaultStyle,
  ...data,
});

export const interactiveToData: InteractiveTo<"circle"> = ({
  info,
  preset = {},
  ...args
}) => {
  if (info.cur) {
    const item = {
      ...defaultStyle,
      fill: null,
      ...getBaseItem(),
      ...preset,
    } as unknown as CircleData;
    return interactiveFixData({ ...args, info, data: item });
  }
};

export const interactiveFixData: InteractiveFix<"circle"> = ({
  data,
  info,
}) => {
  const area = info.cur!;
  const sx = Math.abs(area[1].x - area[0].x) / 2;
  const sy = Math.abs(area[1].y - area[0].y) / 2;
  const center = lineCenter(area);

  data.mat = new Transform().translate(center.x, center.y).m;
  data.radiusX = sx;
  data.radiusY = sy;
  return data;
};

export const matResponse = (
  { data, mat, increment }: MatResponseProps<"circle">,
  initRadius?: Pos
) => {
  if (!initRadius) {
    initRadius = {
      x: data.radiusX,
      y: data.radiusY,
    };
  }
  if (increment) {
    mat = mat.copy().multiply(new Transform(data.mat));
  }
  const dec = mat.decompose();
  data.radiusY = dec.scaleY * initRadius.y;
  data.radiusX = dec.scaleX * initRadius.x;

  data.mat = new Transform()
    .translate(dec.x, dec.y)
    .rotate(MathUtils.degToRad(dec.rotation)).m;
  return data;
};

export const getPredefine = (key: keyof CircleData) => {
  if (["fill", "stroke"].includes(key)) {
    return { canun: true };
  }
};