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package internal
import (
"bytes"
"context"
"fmt"
"io"
"io/fs"
"sort"
"strings"
"time"
"golang.org/x/exp/slog"
"maze.io/x/readingtime"
"xeiaso.net/v4"
"xeiaso.net/v4/config"
"xeiaso.net/v4/internal/frontmatter"
"xeiaso.net/v4/internal/jsonfeed"
"xeiaso.net/v4/internal/markdown"
"xeiaso.net/v4/internal/schemaorg"
)
type FrontMatter struct {
Title string `json:"title,omitempty" yaml:"title,omitempty"`
Date config.Date `json:"date,omitempty" yaml:"date,omitempty"`
Author *string `json:"author,omitempty" yaml:"author,omitempty"`
Series *string `json:"series,omitempty" yaml:"series,omitempty"`
Tags []string `json:"tags,omitempty" yaml:"tags,omitempty"`
SlidesLink *string `json:"slides_link,omitempty" yaml:"slides_link,omitempty"`
Image *string `json:"image,omitempty" yaml:"image,omitempty"`
Thumb *string `json:"thumb,omitempty" yaml:"thumb,omitempty"`
RedirectTo *string `json:"redirect_to,omitempty" yaml:"redirect_to,omitempty"`
Vod *Vod `json:"vod,omitempty" yaml:"vod,omitempty"`
SkipAds bool `json:"skip_ads,omitempty" yaml:"skip_ads,omitempty"`
}
type Vod struct {
Twitch string `json:"twitch,omitempty" yaml:"twitch,omitempty"`
Youtube string `json:"youtube,omitempty" yaml:"youtube,omitempty"`
}
type NewPost struct {
Title string `json:"title"`
Summary string `json:"summary"`
Link string `json:"link"`
}
type Post struct {
FrontMatter FrontMatter `json:"frontMatter"`
Link string `json:"link"`
BodyHTML string `json:"bodyHTML"`
Date config.Date `json:"date"`
Mentions []any `json:"mentions"`
ReadTime time.Duration `json:"readTimeEstimateMinutes"`
}
func (p Post) ToNewPost() NewPost {
return NewPost{
Title: p.FrontMatter.Title,
Summary: fmt.Sprintf("%d minute read", int(p.ReadTime.Minutes())),
Link: p.Link,
}
}
func (p Post) ToSchemaOrgArticle() schemaorg.Article {
return schemaorg.Article{
Context: "https://schema.org",
Type: "Article",
Headline: p.FrontMatter.Title,
Image: "https://xeiaso.net/static/images/xeiaso.png",
URL: fmt.Sprintf("https://xeiaso.net/%s", p.Link),
DatePublished: p.Date.Format("2006-01-02"),
}
}
func (p Post) ToJSONFeedItem() jsonfeed.Item {
url := fmt.Sprintf("https://xeiaso.net/%s", p.Link)
if p.FrontMatter.RedirectTo != nil {
url = *p.FrontMatter.RedirectTo
}
return jsonfeed.Item{
ID: fmt.Sprintf("https://xeiaso.net/%s", p.Link),
URL: url,
ExternalURL: p.FrontMatter.RedirectTo,
Title: p.FrontMatter.Title,
ContentHTML: p.BodyHTML,
ContentText: "",
Summary: fmt.Sprintf("%d minute read", int(p.ReadTime.Minutes())),
DatePublished: p.Date.Time,
Authors: []jsonfeed.Author{
// TODO(Xe): look up global list of authors
{
Name: "Xe Iaso",
URL: "https://xeiaso.net",
Avatar: "https://xeiaso.net/static/images/xeiaso.png",
},
},
Tags: p.FrontMatter.Tags,
}
}
const iOS13DetriFormat = `M01 02 2006`
func (p Post) Detri() string {
return p.Date.Format(iOS13DetriFormat)
}
func Parse(ctx context.Context, fname string, fin fs.File) (*Post, error) {
var result Post
data, err := io.ReadAll(fin)
if err != nil {
return nil, err
}
link := strings.TrimSuffix(fname, ".markdown")
var fm FrontMatter
rest, err := frontmatter.Unmarshal(data, &fm)
if err != nil {
return nil, fmt.Errorf("parsing frontmatter: %w", err)
}
result.FrontMatter = fm
body, err := markdown.Render(ctx, fname, bytes.NewBuffer(rest), "info")
if err != nil {
return nil, err
}
result.BodyHTML = body
result.ReadTime = readingtime.Estimate(string(data))
result.Link = link
result.Date = fm.Date
slog.Debug("loaded post", "link", link, "date", fm.Date)
return &result, nil
}
func LoadAll(ctx context.Context) ([]*Post, error) {
var result []*Post
if err := fs.WalkDir(xeiaso.Markdown, ".", func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
if d.IsDir() {
return nil
}
fin, err := xeiaso.Markdown.Open(path)
if err != nil {
return err
}
post, err := Parse(ctx, path, fin)
if err != nil {
slog.Error("can't process post", "path", path)
panic(err)
}
result = append(result, post)
return nil
}); err != nil {
return nil, err
}
sort.Slice(result, func(i, j int) bool {
return result[i].Date.Time.After(result[j].Date.Time)
})
return result, nil
}
|
