91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
package usecase
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import (
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"context"
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"fmt"
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"path"
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"strings"
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"golang.org/x/text/language"
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"source.toby3d.me/toby3d/home/internal/domain"
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"source.toby3d.me/toby3d/home/internal/page"
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"source.toby3d.me/toby3d/home/internal/static"
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"source.toby3d.me/toby3d/home/internal/urlutil"
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)
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type pageUseCase struct {
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pages page.Repository
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statics static.Repository
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}
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func NewPageUseCase(pages page.Repository, statics static.Repository) page.UseCase {
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return &pageUseCase{
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pages: pages,
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statics: statics,
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}
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}
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func (ucase *pageUseCase) Do(ctx context.Context, lang language.Tag, p string) (*domain.Page, error) {
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ext := path.Ext(p)
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if ext == ".html" {
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p = p[:len(p)-len(ext)]
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}
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hasTrailingSlash := p[len(p)-1] == '/'
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head, tail := urlutil.ShiftPath(p)
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targets := []string{path.Join(head, tail)}
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if tail == "/" {
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if hasTrailingSlash || ext == "" {
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targets = append([]string{path.Join(head, "index")}, targets...)
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}
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targets = append(targets, head)
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}
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for i := range targets {
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out, err := ucase.pages.Get(ctx, lang, targets[i])
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if err != nil {
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continue
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}
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if out.Resources, _, err = ucase.statics.Fetch(ctx, out.File.Dir()+"*"); err != nil {
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return out, nil
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}
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for _, res := range out.Resources.GetType(domain.ResourceTypePage) {
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// TODO(toby3d): simplify this, it's awful
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resName := path.Base(res.Key())
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resExt := path.Ext(resName)
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resParts := strings.Split(resName[:len(resName)-len(resExt)], ".")
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translationBaseName := strings.Join(resParts[:len(resParts)-1], ".")
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if translationBaseName != out.File.TranslationBaseName() {
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continue
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}
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resLang := language.Make(resParts[len(resParts)-1])
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if resLang == language.Und {
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continue
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}
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translation, err := ucase.pages.Get(ctx, resLang, targets[i])
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if err != nil {
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continue
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}
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out.Translations = append(out.Translations, translation)
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}
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translations := make([]string, 0)
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for i := range out.Translations {
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translations = append(translations, out.Translations[i].Language.String())
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}
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return out, nil
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}
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return nil, fmt.Errorf("cannot find page on path '%s': %w", p, page.ErrNotExist)
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}
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