// Type definitions for qrcode-svg 1.1
// Project: https://github.com/papnkukn/qrcode-svg
// Definitions by: Eric Ferreira <https://github.com/ericbf>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

/**
 * Generate an svg QR code easily with this class. Just instatiate an instance
 * with one of the constructors, then either generate the QR code svg as a
 * string with `.svg(...)`.
 */
declare class QRCode {
  /**
   * Create a QRCode with the default options and the passed content.
   * @param content The content to encode in the QRCode.
   */
  constructor(content: string)
  /**
   * Create a QRCode by specifying its options. Any values not passed in the
   *   options object will be inferred as the defaults.
   * @param options The options with which to create the QRCode.
   */
  // tslint:disable-next-line:unified-signatures
  constructor(options: QRCode.Options)

  /** The raw model of this QRCode. */
  qrcode: QRCode.Model

  /** The options that were used to create this QRCode. */
  options: QRCode.Options

  /**
   * Generates an SVG image of this QRCode
   * @param  opt Set the container. Defaults to `{ container: "svg" }`.
   * @return The svg string.
   */
  svg(opt?: { container: "svg" | "g" | "none" }): string
}

declare namespace QRCode {
  interface Options {
    /** QR Code content, the only **required** parameter. */
    content: string
    /** White space padding. `0` for no border. Default is `4`. */
    padding?: number
    /** QR Code width in pixels. Default is `256`. */
    width?: number
    /** QR Code height in pixels. Default is `256`. */
    height?: number
    /** Color of modules (squares), color name or hex string. Default is `#000000`. */
    color?: string
    /** Color of background, color name or hex string. Default is `#fffff`. */
    background?: string
    /** Error correction level. Default is `"M"`. */
    ecl?: "L" | "M" | "H" | "Q"
    /** Join modules (squares) into one shape, into the SVG path element, **recommended** for web and responsive use. Default is `false`. */
    join?: boolean
    /** To create a squares as pattern, then populate the canvas. Default is `false`. */
    predefined?: boolean
    /** Apply indents and new lines. Default is `true`. */
    pretty?: boolean
    /** Swap X and Y modules, only if you have issues with some QR readers. Default is `false`. */
    swap?: boolean
    /** Prepend XML declaration to the SVG document, i.e. ```<?xml version="1.0" standalone="yes"?>```. Default is `true`. */
    xmlDeclaration?: boolean
    /**
     * Wrapping element. Default is `svg`. \
     * `svg`: Populate squares in a SVG document with `width` and `height` attribute.
     * Recommended for converting to raster images or PDF where QR Code is being static (exact size). \
     * `svg-viewbox`: Populate squares in a SVG document with viewBox attriute.
     * **Recommended** for responsive web pages. \
     * `g`: Put squares in `g` element.
     * Useful when you need to put multiple QR Codes in a single SVG document \
     * `none`: No wrapper.
     */
    container?: "svg" | "svg-viewbox" | "g" | "none"
  }

  interface Model {
    /**
     * This QRCode's data matrix. A square, two-dimensional boolean array
     * of `moduleCount` x `moduleCount` size. True in a given slot means
     * that spot is filled in in the QRCode visualization.
     */
    modules: boolean[][]
    /** The calculated type number for this QRCode. */
    typeNumber: number
    /** The numerical error correction level for this QRCode. */
    errorCorrectLevel: number
    /** The width/length of this QRCode's modules matrix. */
    moduleCount: number
    /** The cache used to store data during the creation of this QRCode. */
    dataCache: number[] | null
    /** A list of the data added to this QRCode. */
    dataList: Array<{
      data: string
      mode: number
      parsedData: number[]
    }>

    /**
     * Queue data up to be added to this QRCode. `make` needs to be called
     *   to actually generate the QRCode from the data.
     * @param data The data to queue up in this QRCode.
     */
    addData(data: string): void
    /**
     * Whether a given coordinate is filled in in this QRCode's matrix.
     * @param  row The row to check.
     * @param  col The column to check.
     * @return True if the coordinate is filled in, false otherwise.
     */
    isDark(row: number, col: number): boolean
    /** Returns the length/width of this QRCode's matrix. */
    getModuleCount(): number
    /** Generate this QRCode's matrix from the queued data. */
    make(): void
  }
}

export = QRCode