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|
package pages
import (
"bytes"
"fmt"
"sort"
"text/template"
"git.sr.ht/~a73x/home/html"
"git.sr.ht/~a73x/home/markdown"
"git.sr.ht/~a73x/home/templates"
)
type Navigation struct {
Title string
Path string
}
type GlobalState struct {
Collections map[string][]markdown.Content
Nav []Navigation
}
type ParserPair struct {
GlobalState
markdown.Content
}
func renderTemplate(config GlobalState, content markdown.Content) (string, error) {
tmpl := content.Meta["template"]
chosenTemplate := fmt.Sprintf("%s.html", tmpl)
t, err := template.ParseFS(templates.FS, chosenTemplate, "layouts/*.html")
if err != nil {
return "", fmt.Errorf("failed to parse layouts: %v", err)
}
contentParser, err := template.New("content").Parse(string(content.Body))
if err != nil {
return "", fmt.Errorf("failed parsing content: %v", err)
}
data := ParserPair{
config,
content,
}
newContent := &bytes.Buffer{}
if err := contentParser.Execute(newContent, data); err != nil {
return "", fmt.Errorf("failed to execute content template: %v", err)
}
data.Body = string(html.MDToHTML(newContent.Bytes()))
b := &bytes.Buffer{}
if err := t.Execute(b, data); err != nil {
return "", err
}
return b.String(), nil
}
type Page struct {
Path string
Content string
}
func Collect() ([]Page, error) {
contents, err := markdown.ParseContents()
if err != nil {
return nil, err
}
gs := GlobalState{
Collections: map[string][]markdown.Content{
"all": contents,
},
Nav: make([]Navigation, 0),
}
for _, content := range contents {
tags, ok := content.Meta["tags"]
if ok {
switch tags := tags.(type) {
case string:
gs.Collections[tags] = append(gs.Collections[tags], content)
case []string:
for _, tag := range tags {
gs.Collections[tag] = append(gs.Collections[tag], content)
}
}
}
nav, ok := content.Meta["nav"]
if ok {
gs.Nav = append(gs.Nav, Navigation{content.Meta["title"].(string), nav.(string)})
}
}
sortNavBar(gs.Nav)
pages := []Page{}
for _, content := range contents {
page, err := renderTemplate(gs, content)
if err != nil {
return nil, fmt.Errorf("failed to build site: %v", err)
}
path := content.Path
if path == "index" {
path = ""
}
pages = append(pages, Page{
Path: path,
Content: page,
})
}
return pages, nil
}
func sortNavBar(nav []Navigation) {
// see no evil, speak no evil
sort.Slice(nav, func(i, j int) bool {
order := map[string]int{
"home": 1,
"posts": 2,
"about": 3,
}
// Get the order value, default to a high number if not in the predefined order
orderI, okI := order[nav[i].Title]
if !okI {
orderI = len(nav) + 1
}
orderJ, okJ := order[nav[j].Title]
if !okJ {
orderJ = len(nav) + 1
}
// If both strings have the same order value, sort lexicographically
if orderI == orderJ {
return nav[i].Title < nav[j].Title
}
return orderI < orderJ
})
}
|
