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97 lines
2.2 KiB
Go
97 lines
2.2 KiB
Go
package handlebars
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import (
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"html"
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"path/filepath"
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"github.com/aymerick/raymond"
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"github.com/mickael-menu/zk/adapter/handlebars/helpers"
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"github.com/mickael-menu/zk/core/style"
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"github.com/mickael-menu/zk/core/templ"
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"github.com/mickael-menu/zk/util"
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"github.com/mickael-menu/zk/util/errors"
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)
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func Init(lang string, logger util.Logger, styler style.Styler) {
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helpers.RegisterConcat()
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helpers.RegisterDate(logger)
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helpers.RegisterList()
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helpers.RegisterPrepend(logger)
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helpers.RegisterShell(logger)
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helpers.RegisterSlug(lang, logger)
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helpers.RegisterStyle(styler, logger)
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}
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// Template renders a parsed handlebars template.
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type Template struct {
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template *raymond.Template
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}
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// Render renders the template with the given context.
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func (t *Template) Render(context interface{}) (string, error) {
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res, err := t.template.Exec(context)
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if err != nil {
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return "", errors.Wrap(err, "render template failed")
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}
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return html.UnescapeString(res), nil
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}
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// Loader loads and holds parsed handlebars templates.
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type Loader struct {
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strings map[string]*Template
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files map[string]*Template
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}
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// NewLoader creates a new instance of Loader.
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func NewLoader() *Loader {
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return &Loader{
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strings: make(map[string]*Template),
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files: make(map[string]*Template),
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}
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}
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// Load retrieves or parses a handlebars string template.
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func (l *Loader) Load(content string) (templ.Renderer, error) {
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wrap := errors.Wrapperf("load template failed")
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// Already loaded?
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template, ok := l.strings[content]
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if ok {
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return template, nil
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}
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// Load new template.
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vendorTempl, err := raymond.Parse(content)
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if err != nil {
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return nil, wrap(err)
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}
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template = &Template{vendorTempl}
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l.strings[content] = template
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return template, nil
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}
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// LoadFile retrieves or parses a handlebars file template.
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func (l *Loader) LoadFile(path string) (templ.Renderer, error) {
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wrap := errors.Wrapper("load template file failed")
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path, err := filepath.Abs(path)
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if err != nil {
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return nil, wrap(err)
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}
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// Already loaded?
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template, ok := l.files[path]
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if ok {
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return template, nil
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}
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// Load new template.
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vendorTempl, err := raymond.ParseFile(path)
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if err != nil {
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return nil, wrap(err)
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}
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template = &Template{vendorTempl}
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l.files[path] = template
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return template, nil
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}
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