import { type PartialWithUndefined, type RequiredAndNotNull } from '@augment-vir/common';
import { ContrastLevelName } from '@electrovir/color';
import { type CssVarDefinitions, type SingleCssVarDefinition } from 'lit-css-vars';
import { type ColorInitValue } from './color-theme-init.js';
import { type NoRefColorInit } from './color-theme.js';
/** @category Internal */
export type ColorPaletteVars = CssVarDefinitions<Record<`${string}-${string}-${number}`, any>>;
/** @category Internal */
export type PaletteColor = {
    suffix: string | undefined;
    prefix: string;
    colorName: string;
    definition: SingleCssVarDefinition;
    cssVarName: string;
};
/** @category Internal */
export type ColorGroups = Record<string, PaletteColor[]>;
/**
 * Black and white color values.
 *
 * @category Internal
 */
export declare const defaultOmittedColorGroupColorValues: string[];
/** @category Internal */
export declare function groupColors(colors: Readonly<ColorPaletteVars>, 
/**
 * Color values to omit from the grouping. Defaults to
 * {@link defaultOmittedColorGroupColorValues}.
 *
 * @default defaultOmittedColorGroupColorValues
 */
omittedColorValues?: ReadonlyArray<string>): ColorGroups;
/** @category Internal */
export declare function extractPaletteColor(color: Readonly<SingleCssVarDefinition>): PaletteColor;
/** @category Internal */
export declare function extractParam<const T extends PropertyKey>(possibleParams: ReadonlyArray<PropertyKey> | Readonly<Record<PropertyKey, boolean>>, { mapFrom, mapTo, }: Readonly<PartialWithUndefined<{
    mapTo: Record<string, T>;
    mapFrom: Record<T, any>;
}>>): T[];
/** @category Internal */
export type ArrayOrSelectParam<T extends PropertyKey> = ReadonlyArray<T> | Readonly<Partial<Record<T, boolean>>>;
/** @category Internal */
export declare const defaultLightThemePair: RequiredAndNotNull<NoRefColorInit>;
/** @category Internal */
export declare const defaultContrastLevels: Readonly<ArrayOrSelectParam<ContrastLevelName>>;
/**
 * Extra contrast levels generated by {@link buildColorTheme} beyond the standard `ContrastLevelName`
 * values. `highest-contrast` always picks the palette color with the most contrast against the
 * fixed color; `lowest-contrast` always picks the closest.
 *
 * @category Internal
 */
export declare enum ExtremeContrastLevel {
    HighestContrast = "highest-contrast",
    LowestContrast = "lowest-contrast"
}
/**
 * Options for {@link buildColorTheme}.
 *
 * @category Internal
 */
export type BuildLowLevelColorThemeOptions = PartialWithUndefined<{
    /**
     * Theme var prefix.
     *
     * @default 'vir'
     */
    prefix: string;
    /**
     * The default theme colors for {@link defineColorTheme}. Defaults to
     * {@link defaultLightThemePair}.
     *
     * @default defaultLightThemePair
     */
    defaultTheme: RequiredAndNotNull<NoRefColorInit>;
    /**
     * All font weights to cross colors with. Defaults to {@link defaultContrastLevels}.
     *
     * @default defaultContrastLevels
     */
    crossContrastLevels: Readonly<ArrayOrSelectParam<ContrastLevelName>>;
    /**
     * Color values to omit from the grouping. Defaults to
     * {@link defaultOmittedColorGroupColorValues}.
     *
     * @default defaultOmittedColorGroupColorValues
     */
    omittedColorValues: ReadonlyArray<string>;
}>;
/**
 * Creates a color theme from a color palette.
 *
 * @category Color Theme
 */
export declare function buildColorTheme(colorPalette: Readonly<ColorPaletteVars>, { omittedColorValues, crossContrastLevels, prefix, }?: Readonly<BuildLowLevelColorThemeOptions>): {
    defaultLight: import("./color-theme.js").ColorTheme<Record<`${Lowercase<string>}-${Lowercase<string>}`, ((Required<Pick<{
        foreground: ColorInitValue;
        background: ColorInitValue;
    }, "foreground">> & Partial<Pick<{
        foreground: ColorInitValue;
        background: ColorInitValue;
    }, "background">>) | (Required<Pick<{
        foreground: ColorInitValue;
        background: ColorInitValue;
    }, "background">> & Partial<Pick<{
        foreground: ColorInitValue;
        background: ColorInitValue;
    }, "foreground">>)) & {}>>;
    darkOverride: import("./color-theme-init.js").ColorThemeOverride<Record<`${Lowercase<string>}-${Lowercase<string>}`, ((Required<Pick<{
        foreground: ColorInitValue;
        background: ColorInitValue;
    }, "foreground">> & Partial<Pick<{
        foreground: ColorInitValue;
        background: ColorInitValue;
    }, "background">>) | (Required<Pick<{
        foreground: ColorInitValue;
        background: ColorInitValue;
    }, "background">> & Partial<Pick<{
        foreground: ColorInitValue;
        background: ColorInitValue;
    }, "foreground">>)) & {}>>;
};