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