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package server
import (
"fmt"
"html"
"html/template"
"log/slog"
"os"
"path"
"path/filepath"
"searchix/internal/options"
"strings"
"github.com/pkg/errors"
"github.com/yuin/goldmark"
"github.com/yuin/goldmark/extension"
)
type TemplateCollection map[string]*template.Template
var md = goldmark.New(
goldmark.WithExtensions(extension.NewLinkify()),
)
var templateFuncs = template.FuncMap{
"markdown": func(input options.Markdown) template.HTML {
var out strings.Builder
err := md.Convert([]byte(input), &out)
if err != nil {
slog.Warn(fmt.Sprintf("markdown conversion failed: %v", err))
return template.HTML(html.EscapeString(err.Error())) // #nosec G203 -- duh?
}
return template.HTML(out.String()) // #nosec G203
},
}
func loadTemplate(filename string) (*template.Template, error) {
text, err := os.ReadFile(filename)
if err != nil {
return nil, errors.WithMessage(err, "could not read template")
}
name, _ := strings.CutSuffix(path.Base(filename), ".gotmpl")
tpl := template.New(name)
tpl.Funcs(templateFuncs)
_, err = tpl.Parse(string(text))
if err != nil {
return nil, errors.WithMessage(err, "could not parse template")
}
return tpl, nil
}
func loadTemplates() (TemplateCollection, error) {
templateDir := path.Join("frontend", "templates")
templates := make(TemplateCollection, 0)
index, err := loadTemplate(path.Join(templateDir, "index.gotmpl"))
if err != nil {
return nil, err
}
templates["index"] = index
templatePaths, err := filepath.Glob(path.Join(templateDir, "blocks", "*.gotmpl"))
if err != nil {
return nil, errors.WithMessage(err, "could not glob block templates")
}
for _, fullname := range templatePaths {
tpl, err := loadTemplate(fullname)
if err != nil {
return nil, err
}
_, err = tpl.AddParseTree("index", index.Tree)
if err != nil {
return nil, errors.WithMessage(err, "could not add index template")
}
templates[tpl.Name()] = tpl
}
return templates, nil
}
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