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scriptlet-api.go
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scriptlet-api.go
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package jst
import (
contextpkg "context"
"io"
"time"
"github.com/tliron/commonjs-goja"
"github.com/tliron/commonlog"
"github.com/tliron/go-scriptlet/render"
"github.com/tliron/kutil/util"
)
// ([commonjs.CreateExtensionFunc] signature)
func CreateScriptletExtension(jsContext *commonjs.Context) any {
return NewScriptletAPI(jsContext)
}
//
// ScriptletAPI
//
type ScriptletAPI struct {
jsContext *commonjs.Context
}
func NewScriptletAPI(jsContext *commonjs.Context) *ScriptletAPI {
return &ScriptletAPI{
jsContext: jsContext,
}
}
func (self *ScriptletAPI) Render(writer io.Writer, content any, renderer string, timeoutSeconds float64) error {
return render.Render(writer, content, renderer, false, self.jsContext)
}
func (self *ScriptletAPI) RenderFrom(writer io.Writer, id string, renderer string, timeoutSeconds float64) error {
context := contextpkg.Background()
if timeoutSeconds > 0.0 {
var cancelContext contextpkg.CancelFunc
context, cancelContext = contextpkg.WithTimeout(context, time.Duration(timeoutSeconds*float64(time.Second)))
defer cancelContext()
}
if url, err := self.jsContext.ResolveAndWatch(context, id, false); err == nil {
if reader, err := url.Open(context); err == nil {
reader = util.NewContextualReadCloser(context, reader)
if err := render.Render(writer, reader, renderer, false, self.jsContext); err == nil {
return reader.Close()
} else {
commonlog.CallAndLogWarning(reader.Close, "ScriptletAPI.RenderFrom", self.jsContext.Environment.Log)
return err
}
} else {
return err
}
} else {
return err
}
}
func (self *ScriptletAPI) RenderToString(content any, renderer string) (string, error) {
return render.RenderToString(content, renderer, false, self.jsContext)
}