package gstreamer

import (
	"errors"
	"github.com/tinyzimmer/go-glib/glib"
	"github.com/tinyzimmer/go-gst/gst"
)

var gstreamer *Gstreamer

func Init() *Gstreamer {
	gst.Init(nil)
	glib.NewMainLoop(glib.MainContextDefault(), true)
	gstreamer = &Gstreamer{}
	return gstreamer
}

func (g *Gstreamer) DeletePipeline(id string) {
	g.Lock()
	if pipeline, err := g.GetPipeline(id); err == nil {
		delete(g.Pipelines, id)
		pipeline.ctxCancel()
	}
	g.Unlock()
}

func (g *Gstreamer) GetPipeline(id string) (*Pipeline, error) {
	g.RLock()
	if pipeline, ok := g.Pipelines[id]; ok {
		return pipeline, nil
	}
	return nil, errors.New("Pipeline not found")
}