/*******************************************************************************
 * You may amend and distribute as you like, but don't remove this header!
 *
 * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
 * See http://www.codeplex.com/EPPlus for details.
 *
 * Copyright (C) 2011  Jan Källman
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
 * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
 *
 * All code and executables are provided "as is" with no warranty either express or implied.
 * The author accepts no liability for any damage or loss of business that this product may cause.
 *
 * Code change notes:
 *
 * Author							Change						Date
 * ******************************************************************************
 * Jan Källman		                Initial Release		        2009-10-01
 * Jan Källman		License changed GPL-->LGPL 2011-12-16
 *******************************************************************************/

using System;
using OfficeOpenXml.Style.XmlAccess;

namespace OfficeOpenXml.Style;

/// <summary>
/// Toplevel class for cell styling
/// </summary>
public sealed class ExcelStyle : StyleBase {
  internal ExcelStyle(
      ExcelStyles styles,
      XmlHelper.ChangedEventHandler changedEvent,
      int positionId,
      string address,
      int xfsId)
      : base(styles, changedEvent, positionId, address) {
    Index = xfsId;
    ExcelXfs xfs;
    if (positionId > -1) {
      xfs = _styles.CellXfs[xfsId];
    } else {
      xfs = _styles.CellStyleXfs[xfsId];
    }
    Styles = styles;
    PositionID = positionId;
    Numberformat = new(styles, changedEvent, PositionID, address, xfs.NumberFormatId);
    Font = new(styles, changedEvent, PositionID, address, xfs.FontId);
    Fill = new(styles, changedEvent, PositionID, address, xfs.FillId);
    Border = new(styles, changedEvent, PositionID, address, xfs.BorderId);
  }

  /// <summary>
  /// Numberformat
  /// </summary>
  public ExcelNumberFormat Numberformat { get; set; }

  /// <summary>
  /// Font styling
  /// </summary>
  public ExcelFont Font { get; set; }

  /// <summary>
  /// Fill Styling
  /// </summary>
  public ExcelFill Fill { get; set; }

  /// <summary>
  /// Border
  /// </summary>
  public Border Border { get; set; }

  /// <summary>
  /// The horizontal alignment in the cell
  /// </summary>
  public ExcelHorizontalAlignment HorizontalAlignment {
    get => _styles.CellXfs[Index].HorizontalAlignment;
    set =>
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.HorizontalAlign, value, _positionID, _address));
  }

  /// <summary>
  /// The vertical alignment in the cell
  /// </summary>
  public ExcelVerticalAlignment VerticalAlignment {
    get => _styles.CellXfs[Index].VerticalAlignment;
    set =>
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.VerticalAlign, value, _positionID, _address));
  }

  /// <summary>
  /// Wrap the text
  /// </summary>
  public bool WrapText {
    get => _styles.CellXfs[Index].WrapText;
    set =>
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.WrapText, value, _positionID, _address));
  }

  /// <summary>
  /// Readingorder
  /// </summary>
  public ExcelReadingOrder ReadingOrder {
    get => _styles.CellXfs[Index].ReadingOrder;
    set =>
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.ReadingOrder, value, _positionID, _address));
  }

  /// <summary>
  /// Shrink the text to fit
  /// </summary>
  public bool ShrinkToFit {
    get => _styles.CellXfs[Index].ShrinkToFit;
    set =>
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.ShrinkToFit, value, _positionID, _address));
  }

  /// <summary>
  /// The margin between the border and the text
  /// </summary>
  public int Indent {
    get => _styles.CellXfs[Index].Indent;
    set {
      if (value < 0 || value > 250) {
        throw (new ArgumentOutOfRangeException("Indent must be between 0 and 250"));
      }
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.Indent, value, _positionID, _address));
    }
  }

  /// <summary>
  /// Text orientation in degrees. Values range from 0 to 180.
  /// </summary>
  public int TextRotation {
    get => _styles.CellXfs[Index].TextRotation;
    set {
      if (value < 0 || value > 180) {
        throw new ArgumentOutOfRangeException("TextRotation out of range.");
      }
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.TextRotation, value, _positionID, _address));
    }
  }

  /// <summary>
  /// If true the cell is locked for editing when the sheet is protected
  /// <seealso cref="ExcelWorksheet.Protection"/>
  /// </summary>
  public bool Locked {
    get => _styles.CellXfs[Index].Locked;
    set =>
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.Locked, value, _positionID, _address));
  }

  /// <summary>
  /// If true the formula is hidden when the sheet is protected.
  /// <seealso cref="ExcelWorksheet.Protection"/>
  /// </summary>
  public bool Hidden {
    get => _styles.CellXfs[Index].Hidden;
    set =>
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.Hidden, value, _positionID, _address));
  }

  private const string _xfIdPath = "@xfId";

  /// <summary>
  /// The index in the style collection
  /// </summary>
  public int XfId {
    get => _styles.CellXfs[Index].XfId;
    set =>
      _ChangedEvent(
          this,
          new(eStyleClass.Style, eStyleProperty.XfId, value, _positionID, _address));
  }

  internal int PositionID { get; set; }

  internal ExcelStyles Styles { get; set; }

  internal override string Id =>
    Numberformat.Id
        + "|"
        + Font.Id
        + "|"
        + Fill.Id
        + "|"
        + Border.Id
        + "|"
        + VerticalAlignment
        + "|"
        + HorizontalAlignment
        + "|"
        + WrapText
        + "|"
        + ReadingOrder
        + "|"
        + XfId;
}