package main

import (
	"github.com/OpenDiablo2/OpenDiablo2/d2common"
	"github.com/OpenDiablo2/OpenDiablo2/d2data/d2mpq"
	"image"
	"log"

	"github.com/OpenDiablo2/OpenDiablo2/d2core/d2scene"
	"github.com/OpenDiablo2/OpenDiablo2/d2input"
	"github.com/OpenDiablo2/OpenDiablo2/d2render/d2surface"
	"github.com/OpenDiablo2/OpenDiablo2/d2term"

	"github.com/hajimehoshi/ebiten/ebitenutil"

	"github.com/OpenDiablo2/OpenDiablo2/d2core"
	"github.com/hajimehoshi/ebiten"
	"gopkg.in/alecthomas/kingpin.v2"
)

// GitBranch is set by the CI build process to the name of the branch
var GitBranch string

// GitCommit is set by the CI build process to the commit hash
var GitCommit string
var d2Engine *d2core.Engine

var region = kingpin.Arg("region", "Region type id").Int()
var preset = kingpin.Arg("preset", "Level preset").Int()

func main() {
	d2input.Initialize()
	d2term.Initialize()
	d2term.BindLogger()

	//procs := runtime.GOMAXPROCS(16)
	//log.Printf("Setting gomaxprocs to 16, it was previously set to %d", procs)
	//runtime.LockOSThread()
	//defer runtime.UnlockOSThread()
	//defer profile.Start(profile.ProfilePath(".")).Stop()
	if len(GitBranch) == 0 {
		GitBranch = "Local Build"
		GitCommit = ""
	}
	d2common.SetBuildInfo(GitBranch, GitCommit)
	log.SetFlags(log.Lshortfile)
	log.Println("OpenDiablo2 - Open source Diablo 2 engine")
	_, iconImage, err := ebitenutil.NewImageFromFile("d2logo.png", ebiten.FilterLinear)
	if err == nil {
		ebiten.SetWindowIcon([]image.Image{iconImage})
	}
	d2mpq.InitializeCryptoBuffer()
	d2Engine = d2core.CreateEngine()
	kingpin.Parse()
	if *region == 0 {
		d2Engine.SetNextScene(d2scene.CreateMainMenu(d2Engine, d2Engine.UIManager, d2Engine.SoundManager))
	} else {
		d2Engine.SetNextScene(d2scene.CreateMapEngineTest(d2Engine, d2Engine.UIManager, d2Engine.SoundManager, *region, *preset))
	}
	ebiten.SetCursorVisible(false)
	ebiten.SetFullscreen(d2Engine.Settings.FullScreen)
	ebiten.SetRunnableInBackground(d2Engine.Settings.RunInBackground)
	ebiten.SetVsyncEnabled(d2Engine.Settings.VsyncEnabled)
	ebiten.SetMaxTPS(d2Engine.Settings.TicksPerSecond)
	if err := ebiten.Run(update, 800, 600, d2Engine.Settings.Scale, "OpenDiablo 2 ("+GitBranch+")"); err != nil {
		log.Fatal(err)
	}
}

func update(screen *ebiten.Image) error {
	d2Engine.Advance()
	if !ebiten.IsDrawingSkipped() {
		surface := d2surface.CreateSurface(screen)
		d2Engine.Render(surface)
		if surface.GetDepth() > 0 {
			panic("detected surface stack leak")
		}
	}

	return nil
}