Load HTML templates and SCSS styling

page.go

@@ -5,33 +5,74 @@ import (
 	"fmt"
 	"io/ioutil"
 
+	"github.com/aymerick/raymond"
+	"github.com/mitchellh/mapstructure"
 	"github.com/yuin/goldmark"
+	highlighting "github.com/yuin/goldmark-highlighting"
+	meta "github.com/yuin/goldmark-meta"
 	"github.com/yuin/goldmark/extension"
+	"github.com/yuin/goldmark/parser"
 	"github.com/yuin/goldmark/renderer/html"
 )
 
-type page struct {
-	slug string
+// Metadata stores the data about a page that needs to be visible
+// at the home page.
+type Metadata struct {
+	Title   string
+	Summary string
+	Date    string // TODO: better representation? time.Time might cause timezone issues...
 }
 
-func (p *page) render() ([]byte, error) {
-	data, err := ioutil.ReadFile("posts/" + p.slug + ".md")
+// Page stores the contents of a blog post.
+type Page struct {
+	Slug     string
+	Metadata Metadata
+	Contents string
+}
+
+func newPage(slug string) (*Page, error) {
+	data, err := ioutil.ReadFile("posts/" + slug + ".md")
 	if err != nil {
-		return nil, fmt.Errorf("Could not read from %s.md: %s", p.slug, err)
+		return nil, fmt.Errorf("could not read file: %s", err)
 	}
 
 	md := goldmark.New(
-		goldmark.WithExtensions(extension.Linkify),
+		goldmark.WithExtensions(
+			extension.Linkify,
+			extension.Strikethrough,
+			extension.Typographer,
+			meta.Meta,
+			highlighting.Highlighting,
+		),
 		goldmark.WithRendererOptions(
 			html.WithUnsafe(),
 		),
 	)
-
 	var converted bytes.Buffer
-	err = md.Convert(data, &converted)
+	ctx := parser.NewContext()
+	err = md.Convert(data, &converted, parser.WithContext(ctx))
 	if err != nil {
-		return nil, fmt.Errorf("Could not parse markdown from %s.md: %s", p.slug, err)
+		return nil, fmt.Errorf("could not parse markdown: %s", err)
+	}
+	mdMap, err := meta.TryGet(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("could not parse metadata: %s", err)
+	}
+	var metadata Metadata
+	err = mapstructure.Decode(mdMap, &metadata)
+	if err != nil {
+		return nil, fmt.Errorf("could not destructure metadata: %s", err)
 	}
 
-	return converted.Bytes(), nil
+	page := &Page{
+		Slug:     slug,
+		Metadata: metadata,
+		Contents: converted.String(),
+	}
+
+	return page, nil
+}
+
+func (p *Page) render(tpl *raymond.Template) (string, error) {
+	return tpl.Exec(p)
 }