text: 'use strict';
  
  const colCache = require('../utils/col-cache');
  
  class Anchor {
    constructor(worksheet, address, offset = 0) {
      if (!address) {
        this.nativeCol = 0;
        this.nativeColOff = 0;
        this.nativeRow = 0;
        this.nativeRowOff = 0;
      } else if (typeof address === 'string') {
        const decoded = colCache.decodeAddress(address);
        this.nativeCol = decoded.col + offset;
        this.nativeColOff = 0;
        this.nativeRow = decoded.row + offset;
        this.nativeRowOff = 0;
      } else if (address.nativeCol !== undefined) {
        this.nativeCol = address.nativeCol || 0;
        this.nativeColOff = address.nativeColOff || 0;
        this.nativeRow = address.nativeRow || 0;
        this.nativeRowOff = address.nativeRowOff || 0;
      } else if (address.col !== undefined) {
        this.col = address.col + offset;
        this.row = address.row + offset;
      } else {
        this.nativeCol = 0;
        this.nativeColOff = 0;
        this.nativeRow = 0;
        this.nativeRowOff = 0;
      }
  
      this.worksheet = worksheet;
    }
  
    static asInstance(model) {
      return model instanceof Anchor || model == null ? model : new Anchor(model);
    }
  
    get col() {
      return this.nativeCol + Math.min(this.colWidth - 1, this.nativeColOff) / this.colWidth;
    }
  
    set col(v) {
      this.nativeCol = Math.floor(v);
      this.nativeColOff = Math.floor((v - this.nativeCol) * this.colWidth);
    }
  
    get row() {
      return this.nativeRow + Math.min(this.rowHeight - 1, this.nativeRowOff) / this.rowHeight;
    }
  
    set row(v) {
      this.nativeRow = Math.floor(v);
      this.nativeRowOff = Math.floor((v - this.nativeRow) * this.rowHeight);
    }
  
    get colWidth() {
      return this.worksheet && this.worksheet.getColumn(this.nativeCol + 1) && this.worksheet.getColumn(this.nativeCol + 1).isCustomWidth
        ? Math.floor(this.worksheet.getColumn(this.nativeCol + 1).width * 10000)
        : 640000;
    }
  
    get rowHeight() {
      return this.worksheet && this.worksheet.getRow(this.nativeRow + 1) && this.worksheet.getRow(this.nativeRow + 1).height
        ? Math.floor(this.worksheet.getRow(this.nativeRow + 1).height * 10000)
        : 180000;
    }
  
    get model() {
      return {
        nativeCol: this.nativeCol,
        nativeColOff: this.nativeColOff,
        nativeRow: this.nativeRow,
        nativeRowOff: this.nativeRowOff,
      };
    }
  
    set model(value) {
      this.nativeCol = value.nativeCol;
      this.nativeColOff = value.nativeColOff;
      this.nativeRow = value.nativeRow;
      this.nativeRowOff = value.nativeRowOff;
    }
  }
  
  module.exports = Anchor;
  