package wpdf

import "gogs.mikescher.com/BlackForestBytes/goext/langext"

type PDFMultiCellOpt struct {
	width             *float64
	height            *float64
	border            *PDFBorder
	align             *PDFTextAlign
	fill              *bool
	fontNameOverride  *PDFFontFamily
	fontStyleOverride *PDFFontStyle
	fontSizeOverride  *float64
	extraLn           *float64
	x                 *float64
}

func NewPDFMultiCellOpt() *PDFMultiCellOpt {
	return &PDFMultiCellOpt{}
}

func (opt *PDFMultiCellOpt) Width(v float64) *PDFMultiCellOpt {
	opt.width = &v
	return opt
}

func (opt *PDFMultiCellOpt) Height(v float64) *PDFMultiCellOpt {
	opt.height = &v
	return opt
}

func (opt *PDFMultiCellOpt) Border(v PDFBorder) *PDFMultiCellOpt {
	opt.border = &v
	return opt
}

func (opt *PDFMultiCellOpt) Align(v PDFTextAlign) *PDFMultiCellOpt {
	opt.align = &v
	return opt
}

func (opt *PDFMultiCellOpt) FillBackground(v bool) *PDFMultiCellOpt {
	opt.fill = &v
	return opt
}

func (opt *PDFMultiCellOpt) Font(fontName PDFFontFamily, fontStyle PDFFontStyle, fontSize float64) *PDFMultiCellOpt {
	opt.fontNameOverride = &fontName
	opt.fontStyleOverride = &fontStyle
	opt.fontSizeOverride = &fontSize
	return opt
}

func (opt *PDFMultiCellOpt) FontName(v PDFFontFamily) *PDFMultiCellOpt {
	opt.fontNameOverride = &v
	return opt
}

func (opt *PDFMultiCellOpt) FontStyle(v PDFFontStyle) *PDFMultiCellOpt {
	opt.fontStyleOverride = &v
	return opt
}

func (opt *PDFMultiCellOpt) FontSize(v float64) *PDFMultiCellOpt {
	opt.fontSizeOverride = &v
	return opt
}

func (opt *PDFMultiCellOpt) Bold() *PDFMultiCellOpt {
	opt.fontStyleOverride = langext.Ptr(Bold)
	return opt
}

func (opt *PDFMultiCellOpt) Italic() *PDFMultiCellOpt {
	opt.fontStyleOverride = langext.Ptr(Italic)
	return opt
}

func (opt *PDFMultiCellOpt) LnAfter(v float64) *PDFMultiCellOpt {
	opt.extraLn = &v
	return opt
}

func (opt *PDFMultiCellOpt) X(v float64) *PDFMultiCellOpt {
	opt.x = &v
	return opt
}

func (b *WPDFBuilder) MultiCell(txt string, opts ...*PDFMultiCellOpt) {

	txtTR := b.tr(txt)

	width := float64(0)
	height := b.cellHeight + b.cellSpacing
	border := BorderNone
	align := AlignLeft
	fill := false
	var fontNameOverride *PDFFontFamily
	var fontStyleOverride *PDFFontStyle
	var fontSizeOverride *float64
	extraLn := float64(0)
	var x *float64

	for _, opt := range opts {
		width = langext.Coalesce(opt.width, width)
		height = langext.Coalesce(opt.height, height)
		border = langext.Coalesce(opt.border, border)
		align = langext.Coalesce(opt.align, align)
		fill = langext.Coalesce(opt.fill, fill)
		fontNameOverride = langext.CoalesceOpt(opt.fontNameOverride, fontNameOverride)
		fontStyleOverride = langext.CoalesceOpt(opt.fontStyleOverride, fontStyleOverride)
		fontSizeOverride = langext.CoalesceOpt(opt.fontSizeOverride, fontSizeOverride)
		extraLn = langext.Coalesce(opt.extraLn, extraLn)
		x = langext.CoalesceOpt(opt.x, x)
	}

	if fontNameOverride != nil || fontStyleOverride != nil || fontSizeOverride != nil {
		oldFontName := b.fontName
		oldFontStyle := b.fontStyle
		oldFontSize := b.fontSize
		newFontName := langext.Coalesce(fontNameOverride, oldFontName)
		newFontStyle := langext.Coalesce(fontStyleOverride, oldFontStyle)
		newFontSize := langext.Coalesce(fontSizeOverride, oldFontSize)
		b.SetFont(newFontName, newFontStyle, newFontSize)
		defer func() { b.SetFont(oldFontName, oldFontStyle, oldFontSize) }()
	}

	if x != nil {
		b.b.SetX(*x)
	}

	b.b.MultiCell(width, height, txtTR, string(border), string(align), fill)

	if extraLn != 0 {
		b.b.Ln(extraLn)
	}
}