Initial commit

adapters/processors/pdf.go

@@ -0,0 +1,52 @@
+package processors
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/SebastiaanKlippert/go-wkhtmltopdf"
+
+	"github.com/derfenix/webarchive/entity"
+)
+
+func NewPDF() *PDF {
+	return &PDF{}
+}
+
+type PDF struct{}
+
+func (P *PDF) Process(_ context.Context, url string) ([]entity.File, error) {
+	gen, err := wkhtmltopdf.NewPDFGenerator()
+	if err != nil {
+		return nil, fmt.Errorf("new pdf generator: %w", err)
+	}
+
+	gen.Dpi.Set(300)
+	gen.PageSize.Set(wkhtmltopdf.PageSizeA4)
+	gen.Orientation.Set(wkhtmltopdf.OrientationPortrait)
+	gen.Grayscale.Set(false)
+	gen.Title.Set(url)
+
+	page := wkhtmltopdf.NewPage(url)
+	page.JavascriptDelay.Set(200)
+	page.LoadMediaErrorHandling.Set("abort")
+	page.FooterRight.Set("[page]")
+	page.HeaderLeft.Set(url)
+	page.HeaderRight.Set(time.Now().Format(time.DateOnly))
+	page.FooterFontSize.Set(10)
+	page.Zoom.Set(1)
+	page.ViewportSize.Set("1920x1080")
+
+	gen.AddPage(page)
+
+	// Create PDF document in internal buffer
+	err = gen.Create()
+	if err != nil {
+		return nil, fmt.Errorf("create pdf: %w", err)
+	}
+
+	file := entity.NewFile("page.pdf", gen.Bytes())
+
+	return []entity.File{file}, nil
+}