import _objectSpread from "@babel/runtime/helpers/builtin/objectSpread";
import _objectWithoutProperties from "@babel/runtime/helpers/builtin/objectWithoutProperties";
import warning from 'warning';
import deepmerge from 'deepmerge'; // < 1kb payload overhead when lodash/merge is > 3kb.

import indigo from '../colors/indigo';
import pink from '../colors/pink';
import grey from '../colors/grey';
import red from '../colors/red';
import common from '../colors/common';
import { getContrastRatio, darken, lighten } from './colorManipulator';
export const light = {
  // The colors used to style the text.
  text: {
    // The most important text.
    primary: 'rgba(0, 0, 0, 0.87)',
    // Secondary text.
    secondary: 'rgba(0, 0, 0, 0.54)',
    // Disabled text have even lower visual prominence.
    disabled: 'rgba(0, 0, 0, 0.38)',
    // Text hints.
    hint: 'rgba(0, 0, 0, 0.38)'
  },
  // The color used to divide different elements.
  divider: 'rgba(0, 0, 0, 0.12)',
  // The background colors used to style the surfaces.
  // Consistency between these values is important.
  background: {
    paper: common.white,
    default: grey[50]
  },
  // The colors used to style the action elements.
  action: {
    // The color of an active action like an icon button.
    active: 'rgba(0, 0, 0, 0.54)',
    // The color of an hovered action.
    hover: 'rgba(0, 0, 0, 0.08)',
    hoverOpacity: 0.08,
    // The color of a selected action.
    selected: 'rgba(0, 0, 0, 0.14)',
    // The color of a disabled action.
    disabled: 'rgba(0, 0, 0, 0.26)',
    // The background color of a disabled action.
    disabledBackground: 'rgba(0, 0, 0, 0.12)'
  }
};
export const dark = {
  text: {
    primary: common.white,
    secondary: 'rgba(255, 255, 255, 0.7)',
    disabled: 'rgba(255, 255, 255, 0.5)',
    hint: 'rgba(255, 255, 255, 0.5)',
    icon: 'rgba(255, 255, 255, 0.5)'
  },
  divider: 'rgba(255, 255, 255, 0.12)',
  background: {
    paper: grey[800],
    default: '#303030'
  },
  action: {
    active: common.white,
    hover: 'rgba(255, 255, 255, 0.1)',
    hoverOpacity: 0.1,
    selected: 'rgba(255, 255, 255, 0.2)',
    disabled: 'rgba(255, 255, 255, 0.3)',
    disabledBackground: 'rgba(255, 255, 255, 0.12)'
  }
};

function addLightOrDark(intent, direction, shade, tonalOffset) {
  if (!intent[direction]) {
    if (intent.hasOwnProperty(shade)) {
      intent[direction] = intent[shade];
    } else if (direction === 'light') {
      intent.light = lighten(intent.main, tonalOffset);
    } else if (direction === 'dark') {
      intent.dark = darken(intent.main, tonalOffset * 1.5);
    }
  }
}

export default function createPalette(palette) {
  const {
    primary = {
      light: indigo[300],
      main: indigo[500],
      dark: indigo[700]
    },
    secondary = {
      light: pink.A200,
      main: pink.A400,
      dark: pink.A700
    },
    error = {
      light: red[300],
      main: red[500],
      dark: red[700]
    },
    type = 'light',
    contrastThreshold = 3,
    tonalOffset = 0.2
  } = palette,
        other = _objectWithoutProperties(palette, ["primary", "secondary", "error", "type", "contrastThreshold", "tonalOffset"]);

  function getContrastText(background) {
    // Use the same logic as
    // Bootstrap: https://github.com/twbs/bootstrap/blob/1d6e3710dd447de1a200f29e8fa521f8a0908f70/scss/_functions.scss#L59
    // and material-components-web https://github.com/material-components/material-components-web/blob/ac46b8863c4dab9fc22c4c662dc6bd1b65dd652f/packages/mdc-theme/_functions.scss#L54
    const contrastText = getContrastRatio(background, dark.text.primary) >= contrastThreshold ? dark.text.primary : light.text.primary;

    if (process.env.NODE_ENV !== 'production') {
      const contrast = getContrastRatio(background, contrastText);
      process.env.NODE_ENV !== "production" ? warning(contrast >= 3, [`Material-UI: the contrast ratio of ${contrast}:1 for ${contrastText} on ${background}`, 'falls below the WACG recommended absolute minimum contrast ratio of 3:1.', 'https://www.w3.org/TR/2008/REC-WCAG20-20081211/#visual-audio-contrast-contrast'].join('\n')) : void 0;
    }

    return contrastText;
  }

  function augmentColor(color, mainShade, lightShade, darkShade) {
    if (!color.main && color[mainShade]) {
      color.main = color[mainShade];
    }

    addLightOrDark(color, 'light', lightShade, tonalOffset);
    addLightOrDark(color, 'dark', darkShade, tonalOffset);

    if (!color.contrastText) {
      color.contrastText = getContrastText(color.main);
    }
  }

  augmentColor(primary, 500, 300, 700);
  augmentColor(secondary, 'A400', 'A200', 'A700');
  augmentColor(error, 500, 300, 700);
  const types = {
    dark,
    light
  };
  process.env.NODE_ENV !== "production" ? warning(types[type], `Material-UI: the palette type \`${type}\` is not supported.`) : void 0;
  const paletteOutput = deepmerge(_objectSpread({
    // A collection of common colors.
    common,
    // The palette type, can be light or dark.
    type,
    // The colors used to represent primary interface elements for a user.
    primary,
    // The colors used to represent secondary interface elements for a user.
    secondary,
    // The colors used to represent interface elements that the user should be made aware of.
    error,
    // The grey colors.
    grey,
    // Used by `getContrastText()` to maximize the contrast between the background and
    // the text.
    contrastThreshold,
    // Take a background color and return the color of the text to maximize the contrast.
    getContrastText,
    // Generate a rich color object.
    augmentColor,
    // Used by the functions below to shift a color's luminance by approximately
    // two indexes within its tonal palette.
    // E.g., shift from Red 500 to Red 300 or Red 700.
    tonalOffset
  }, types[type]), other, {
    clone: false // No need to clone deep

  });
  return paletteOutput;
}