package audio

import (
	"github.com/ebitengine/oto/v3"
	"log"
	"os"
	"time"
)

var (
	hasSetup = false
	audio    Audio
)

type Audio struct {
	AudioContext *oto.Context
}

func setup() {
	var ctxOptions = oto.NewContextOptions{
		SampleRate:   44100,
		ChannelCount: 2,
		Format:       oto.FormatSignedInt16LE,
		BufferSize:   0,
	}

	var ready = make(chan struct{})
	var err error
	audio.AudioContext, ready, err = oto.NewContext(&ctxOptions)
	if err != nil {
		log.Println(err)
		return
	}
	<-ready // Wait for the context to be ready
}

func Play() {
	if !hasSetup {
		setup()
		hasSetup = true
	}

	var b, err = os.Open("sample.wav")
	if err != nil {
		log.Println(err)
		return
	}
	var player = audio.AudioContext.NewPlayer(b)
	player.Play()
	// Wait for the player to finish
	for player.IsPlaying() {
		time.Sleep(time.Millisecond)
	}
	err = player.Close()
	if err != nil {
		log.Println(err)
		return
	}
	err = b.Close()
	if err != nil {
		log.Println(err)
		return
	}
}