r3bl-ts-utils/src/tui-colors/style-builder.ts

The `r3bl-ts-utils` package is a set of useful TypeScript functions and classes that can be used in Node.js and browser environments. They are inspired by Kotlin stdlib, and Rust to write code as expressions rather than statements, colorized text, powerfu

/*
 * Copyright (c) 2022 R3BL LLC. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import _ from "lodash"
import { _also } from "../lang-utils/kotlin-lang-utils"
import { colors, FormatFn } from "./colors"

export class TextColor {
  private readonly formatFns = new Array<FormatFn>()

  static get builder(): TextColor {
    return new TextColor()
  }

  build = (): TextColor & FormatFn =>
    Object.assign(
      (text: string) => this.applyFormatting(text), // Callable via FormatFn signature.
      this
    )

  applyFormatting = (input: string): string => {
    let copy = input.slice()
    this.formatFns.forEach((fn) => (copy = fn(copy)))
    return copy
  }

  toString = () => `${this.formatFns.length}`

  // From colors.ts.

  get stripColors(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.stripColors))
  }

  get black(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.black))
  }

  get red(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.red))
  }

  get green(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.green))
  }

  get yellow(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.yellow))
  }

  get blue(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.blue))
  }

  get magenta(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.magenta))
  }

  get cyan(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.cyan))
  }

  get white(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.white))
  }

  get gray(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.gray))
  }

  get grey(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.grey))
  }

  get bgBlack(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bgBlack))
  }

  get bgRed(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bgRed))
  }

  get bgGreen(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bgGreen))
  }

  get bgYellow(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bgYellow))
  }

  get bgBlue(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bgBlue))
  }

  get bgMagenta(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bgMagenta))
  }

  get bgCyan(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bgCyan))
  }

  get bgWhite(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bgWhite))
  }

  get reset(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.reset))
  }

  get bold(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.bold))
  }

  get dim(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.dim))
  }

  get italic(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.italic))
  }

  get underline(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.underline))
  }

  get inverse(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.inverse))
  }

  get hidden(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.hidden))
  }

  get strikethrough(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.strikethrough))
  }

  get rainbow(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.rainbow))
  }

  get redwhiteblue(): TextColor {
    return _also(this, (it) => it.formatFns.push(colors.redwhiteblue))
  }

  get randomFgColor(): TextColor {
    const randomColor = _.sample([
      colors.black,
      colors.red,
      colors.green,
      colors.yellow,
      colors.blue,
      colors.magenta,
      colors.cyan,
      colors.white,
      colors.gray,
      colors.grey,
    ])!
    return _also(this, (it) => it.formatFns.push(randomColor))
  }
}