// Copyright 2016 - 2018 The excelize Authors. All rights reserved. Use of
// this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
//
// Package excelize providing a set of functions that allow you to write to
// and read from XLSX files. Support reads and writes XLSX file generated by
// Microsoft Excel™ 2007 and later. Support save file without losing original
// charts of XLSX. This library needs Go version 1.8 or later.

package excelize

import "encoding/xml"

// xlsxComments directly maps the comments element from the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main. A comment is a
// rich text note that is attached to and associated with a cell, separate from
// other cell content. Comment content is stored separate from the cell, and is
// displayed in a drawing object (like a text box) that is separate from, but
// associated with, a cell. Comments are used as reminders, such as noting how a
// complex formula works, or to provide feedback to other users. Comments can
// also be used to explain assumptions made in a formula or to call out
// something special about the cell.
type xlsxComments struct {
	XMLName     xml.Name        `xml:"http://schemas.openxmlformats.org/spreadsheetml/2006/main comments"`
	Authors     []xlsxAuthor    `xml:"authors"`
	CommentList xlsxCommentList `xml:"commentList"`
}

// xlsxAuthor directly maps the author element. This element holds a string
// representing the name of a single author of comments. Every comment shall
// have an author. The maximum length of the author string is an implementation
// detail, but a good guideline is 255 chars.
type xlsxAuthor struct {
	Author string `xml:"author"`
}

// xlsxCommentList (List of Comments) directly maps the xlsxCommentList element.
// This element is a container that holds a list of comments for the sheet.
type xlsxCommentList struct {
	Comment []xlsxComment `xml:"comment"`
}

// xlsxComment directly maps the comment element. This element represents a
// single user entered comment. Each comment shall have an author and can
// optionally contain richly formatted text.
type xlsxComment struct {
	Ref      string   `xml:"ref,attr"`
	AuthorID int      `xml:"authorId,attr"`
	Text     xlsxText `xml:"text"`
}

// xlsxText directly maps the text element. This element contains rich text
// which represents the text of a comment. The maximum length for this text is a
// spreadsheet application implementation detail. A recommended guideline is
// 32767 chars.
type xlsxText struct {
	R []xlsxR `xml:"r"`
}

// formatComment directly maps the format settings of the comment.
type formatComment struct {
	Author string `json:"author"`
	Text   string `json:"text"`
}

// Comment directly maps the comment information.
type Comment struct {
	Author   string `json:"author"`
	AuthorID int    `json:"author_id"`
	Ref      string `json:"ref"`
	Text     string `json:"text"`
}