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// Copyright 2017 FoxyUtils ehf. All rights reserved.
package main

import (
	"fmt"
	"os"

	"github.com/unidoc/unioffice/color"
	"github.com/unidoc/unioffice/common/license"
	"github.com/unidoc/unioffice/document"
	"github.com/unidoc/unioffice/measurement"
	"github.com/unidoc/unioffice/schema/soo/wml"
)

func init() {
	// Make sure to load your metered License API key prior to using the library.
	// If you need a key, you can sign up and create a free one at https://cloud.unidoc.io
	err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`))
	if err != nil {
		panic(err)
	}
}

func main() {
	doc := document.New()
	defer doc.Close()

	para := doc.AddParagraph()
	run := para.AddRun()
	para.SetStyle("Title")
	run.AddText("Simple Document Formatting")

	para = doc.AddParagraph()
	para.SetStyle("Heading1")
	run = para.AddRun()
	run.AddText("Some Heading Text")

	para = doc.AddParagraph()
	para.SetStyle("Heading2")
	run = para.AddRun()
	run.AddText("Some Heading Text")

	para = doc.AddParagraph()
	para.SetStyle("Heading3")
	run = para.AddRun()
	run.AddText("Some Heading Text")

	para = doc.AddParagraph()
	para.Properties().SetFirstLineIndent(0.5 * measurement.Inch)

	run = para.AddRun()
	run.AddText("A run is a string of characters with the same formatting. ")

	run = para.AddRun()
	run.Properties().SetBold(true)
	run.Properties().SetFontFamily("Courier")
	run.Properties().SetSize(15)
	run.Properties().SetColor(color.Red)
	run.AddText("Multiple runs with different formatting can exist in the same paragraph. ")

	run = para.AddRun()
	run.AddText("Adding breaks to a run will insert line breaks after the run. ")
	run.AddBreak()
	run.AddBreak()

	run = createParaRun(doc, "Runs support styling options:")

	run = createParaRun(doc, "small caps")
	run.Properties().SetSmallCaps(true)

	run = createParaRun(doc, "strike")
	run.Properties().SetStrikeThrough(true)

	run = createParaRun(doc, "double strike")
	run.Properties().SetDoubleStrikeThrough(true)

	run = createParaRun(doc, "outline")
	run.Properties().SetOutline(true)

	run = createParaRun(doc, "emboss")
	run.Properties().SetEmboss(true)

	run = createParaRun(doc, "shadow")
	run.Properties().SetShadow(true)

	run = createParaRun(doc, "imprint")
	run.Properties().SetImprint(true)

	run = createParaRun(doc, "highlighting")
	run.Properties().SetHighlight(wml.ST_HighlightColorYellow)

	run = createParaRun(doc, "underline")
	run.Properties().SetUnderline(wml.ST_UnderlineWavyDouble, color.Red)

	run = createParaRun(doc, "text effects")
	run.Properties().SetEffect(wml.ST_TextEffectAntsRed)

	nd := doc.Numbering.Definitions()[0]

	for i := 1; i < 5; i++ {
		p := doc.AddParagraph()
		p.SetNumberingLevel(i - 1)
		p.SetNumberingDefinition(nd)
		run := p.AddRun()
		run.AddText(fmt.Sprintf("Level %d", i))
	}
	doc.SaveToFile("simple.docx")
}

func createParaRun(doc *document.Document, s string) document.Run {
	para := doc.AddParagraph()
	run := para.AddRun()
	run.AddText(s)
	return run
}