v3.0.0 (#18)

pkg/markdown.go

@@ -0,0 +1,87 @@
+package gotenberg
+
+import (
+	"fmt"
+	"path/filepath"
+	"strconv"
+)
+
+// MarkdownRequest facilitates Markdown conversion
+// with the Gotenberg API.
+type MarkdownRequest struct {
+	IndexFilePath     string
+	MarkdownFilePaths []string
+	AssetFilePaths    []string
+	Options           *MarkdownOptions
+}
+
+// MarkdownOptions gathers all options
+// for Markdown conversion with the Gotenberg API.
+type MarkdownOptions struct {
+	WebHookURL     string
+	HeaderFilePath string
+	FooterFilePath string
+	PaperSize      [2]float64
+	PaperMargins   [4]float64
+	Landscape      bool
+}
+
+func (markdown *MarkdownRequest) validate() error {
+	if !fileExists(markdown.IndexFilePath) {
+		return fmt.Errorf("%s: index file does not exist", markdown.IndexFilePath)
+	}
+	if markdown.Options.HeaderFilePath != "" && !fileExists(markdown.Options.HeaderFilePath) {
+		return fmt.Errorf("%s: header file does not exist", markdown.Options.HeaderFilePath)
+	}
+	if markdown.Options.FooterFilePath != "" && !fileExists(markdown.Options.FooterFilePath) {
+		return fmt.Errorf("%s: footer file does not exist", markdown.Options.FooterFilePath)
+	}
+	for _, fpath := range markdown.MarkdownFilePaths {
+		if !fileExists(fpath) {
+			return fmt.Errorf("%s: markdown file does not exist", fpath)
+		}
+	}
+	return nil
+}
+
+func (markdown *MarkdownRequest) getPostURL() string {
+	return "/convert/markdown"
+}
+
+func (markdown *MarkdownRequest) getFormValues() map[string]string {
+	if markdown.Options == nil {
+		markdown.Options = &MarkdownOptions{}
+	}
+	values := make(map[string]string)
+	values[webhookURL] = markdown.Options.WebHookURL
+	values[paperWidth] = fmt.Sprintf("%f", markdown.Options.PaperSize[0])
+	values[paperHeight] = fmt.Sprintf("%f", markdown.Options.PaperSize[1])
+	values[marginTop] = fmt.Sprintf("%f", markdown.Options.PaperMargins[0])
+	values[marginBottom] = fmt.Sprintf("%f", markdown.Options.PaperMargins[1])
+	values[marginLeft] = fmt.Sprintf("%f", markdown.Options.PaperMargins[2])
+	values[marginRight] = fmt.Sprintf("%f", markdown.Options.PaperMargins[3])
+	values[landscape] = strconv.FormatBool(markdown.Options.Landscape)
+	return values
+}
+
+func (markdown *MarkdownRequest) getFormFiles() map[string]string {
+	if markdown.Options == nil {
+		markdown.Options = &MarkdownOptions{}
+	}
+	files := make(map[string]string)
+	files["index.html"] = markdown.IndexFilePath
+	files["header.html"] = markdown.Options.HeaderFilePath
+	files["footer.html"] = markdown.Options.FooterFilePath
+	for _, fpath := range markdown.MarkdownFilePaths {
+		files[filepath.Base(fpath)] = fpath
+	}
+	for _, fpath := range markdown.AssetFilePaths {
+		files[filepath.Base(fpath)] = fpath
+	}
+	return files
+}
+
+// Compile-time checks to ensure type implements desired interfaces.
+var (
+	_ = Request(new(MarkdownRequest))
+)