package xlsx

import (
	"encoding/xml"
)

// xlsxWorksheet directly maps the worksheet element in the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main -
// currently I have not checked it for completeness - it does as much
// as I need.
type xlsxWorksheet struct {
	XMLName xml.Name `xml:"http://schemas.openxmlformats.org/spreadsheetml/2006/main worksheet"`
	Dimension xlsxDimension `xml:"dimension"`
	SheetData xlsxSheetData `xml:"sheetData"`
}

// xlsxDimension directly maps the dimension element in the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main -
// currently I have not checked it for completeness - it does as much
// as I need.
type xlsxDimension struct {
	Ref string `xml:"ref,attr"`
}

// xlsxSheetData directly maps the sheetData element in the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main -
// currently I have not checked it for completeness - it does as much
// as I need.
type xlsxSheetData struct {
	XMLName xml.Name `xml:"sheetData"`
	Row []xlsxRow `xml:"row"`
}

// xlsxRow directly maps the row element in the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main -
// currently I have not checked it for completeness - it does as much
// as I need.
type xlsxRow struct {
	R     int     `xml:"r,attr"`
	Spans string  `xml:"spans,attr,omitempty"`
	C     []xlsxC `xml:"c"`
}

// xlsxC directly maps the c element in the namespace
// http://schemas.openxmlformats.org/sprceadsheetml/2006/main -
// currently I have not checked it for completeness - it does as much
// as I need.
type xlsxC struct {
	R string `xml:"r,attr"`  // Cell ID, e.g. A1
	S int    `xml:"s,attr,omitempty"`  // Style reference.
	T string `xml:"t,attr"`  // Type.
	V string  `xml:"v"`       // Value
}

// get cell
func (sh *Sheet) Cell(row, col int) *Cell {

	if len(sh.Rows) > row && sh.Rows[row] != nil && len(sh.Rows[row].Cells) > col {
		return sh.Rows[row].Cells[col]
	}
	return new(Cell)
}