/
render.go
148 lines (116 loc) · 3.2 KB
/
render.go
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package entity
import (
"context"
"fmt"
"github.com/gohugonet/hugoverse/internal/domain/contenthub"
"github.com/gohugonet/hugoverse/internal/domain/contenthub/valueobject"
"github.com/gohugonet/hugoverse/internal/domain/template"
"github.com/gohugonet/hugoverse/pkg/bufferpool"
"io"
"sync"
)
type render struct {
pageMap *PageMap
templateExecutor contenthub.TemplateExecutor
td contenthub.TemplateDescriptor
cb func(info contenthub.PageInfo) error
}
// renderPages renders pages each corresponding to a markdown file.
func (ch *render) renderPages() error {
numWorkers := 3
results := make(chan error)
pages := make(chan *pageState, numWorkers) // buffered for performance
errs := make(chan error)
go ch.errorCollator(results, errs)
wg := &sync.WaitGroup{}
for i := 0; i < numWorkers; i++ {
wg.Add(1)
go ch.pageRenderer(pages, results, wg)
}
var count int
ch.pageMap.PageTrees.Walk(func(ss string, n *contentNode) bool {
select {
default:
count++
fmt.Println("777 count: ", count, ss, n, n.p)
pages <- n.p
}
return false
})
close(pages)
wg.Wait()
close(results)
err := <-errs
if err != nil {
return fmt.Errorf("failed to render pages: %w", err)
}
return nil
}
func (ch *render) pageRenderer(pages <-chan *pageState, results chan<- error, wg *sync.WaitGroup) {
defer wg.Done()
for p := range pages {
fmt.Printf(">>>> page: %#+v\n", p)
templ, found, err := ch.resolveTemplate(p)
if err != nil {
fmt.Println("failed to resolve template")
continue
}
if !found { // layout: "", kind: section, name: HTML
fmt.Printf("layout: %s, kind: %s", p.Layout(), p.Kind())
continue
}
if err := ch.renderAndWritePage(p, templ); err != nil {
fmt.Println(" render err")
fmt.Printf("%#v", err)
results <- err
}
}
}
func (ch *render) renderAndWritePage(p *pageState, templ template.Template) error {
renderBuffer := bufferpool.GetBuffer()
defer bufferpool.PutBuffer(renderBuffer)
if err := ch.renderForTemplate(p.Kind(), p, renderBuffer, templ); err != nil {
return err
}
if renderBuffer.Len() == 0 {
return nil
}
var (
dir string
baseName string
)
if !p.File().IsZero() {
dir = p.File().Dir()
baseName = p.File().TranslationBaseName()
}
return ch.cb(valueobject.NewPageInfo(baseName, p.Kind(), dir, p.SectionsEntries(), renderBuffer))
}
func (ch *render) renderForTemplate(name string, d any, w io.Writer, templ template.Template) (err error) {
if templ == nil {
fmt.Println("templ is nil")
return nil
}
if err = ch.templateExecutor.ExecuteWithContext(context.Background(), templ, w, d); err != nil {
return fmt.Errorf("render of %q failed: %w", name, err)
}
return
}
func (ch *render) resolveTemplate(p *pageState) (template.Template, bool, error) {
d := p.getLayoutDescriptor(ch.td)
lh := valueobject.NewLayoutHandler()
names, err := lh.For(d)
if err != nil {
return nil, false, err
}
return ch.templateExecutor.LookupLayout(names)
}
func (ch *render) errorCollator(results <-chan error, errs chan<- error) {
var errors []error
for e := range results {
errors = append(errors, e)
}
if len(errors) > 0 {
errs <- fmt.Errorf("failed to render pages: %v", errors)
}
close(errs)
}