var render = {}

var context

var util = use('util')

render.initialize = function(config)
{
  var default_conf = {
    title:`Prosperon [${prosperon.version}-${prosperon.revision}]`,
    width: 1280,
    height: 720,
//    icon: graphics.make_texture(io.slurpbytes('icons/moon.gif')),
    high_dpi:0,
    alpha:1,
    fullscreen:0,
    sample_count:1,
    enable_clipboard:true,
    enable_dragndrop: true,
    max_dropped_files: 1,
    swap_interval: 1,
    name: "Prosperon",
    version:prosperon.version + "-" + prosperon.revision,
    identifier: "world.pockle.prosperon",
    creator: "Pockle World LLC",
    copyright: "Copyright Pockle World 2025",
    type: "game",
    url: "https://prosperon.dev"
  }

  prosperon.window = prosperon.engine_start({width:500,height:500})
  context = prosperon.window.make_renderer("vulkan")
}

render.sprite = function(sprite)
{
  context.sprite(sprite)
}

// img here is the engine surface
render.load_texture = function(img)
{
  if (!img.surface)
    throw new Error('Image must have a surface.')

  if (img.texture)
    throw new Error('Image has already been uploaded to GPU.')
    
  img.texture = context.load_texture(img.surface)
}

var current_color = Color.white

render.image = function(image, rect, rotation, anchor, shear, info)
{
//  rect.width = image.rect_px.width;
//  rect.height = image.rect_px.height;
  context.texture(image.texture, image.rect_px, rect, rotation, anchor);
}

render.clip = function(rect)
{
  context.clip(rect)
}

render.line = function(points)
{
  context.line(points)
}

render.point = function(pos)
{
  context.point(pos)
}

render.rectangle = function(rect)
{
  context.rects([rect])
}

render.rects = function(rects)
{
  context.rects(rects)
}

render.pipeline = function(pipe)
{
  // any changes here
}

render.settings = function(set)
{
  if (!set.color) return
  context.draw_color(set.color)
}

render.geometry = function(image, mesh, pipeline)
{
  context.geometry(image, mesh)
}

render.slice9 = function(image, rect, slice, info, pipeline)
{
  context.slice9(image.texture, image.rect_px, util.normalizeSpacing(slice), rect);
}

render.get_image = function(rect)
{
  return context.get_image(rect)
}

render.clear = function(color)
{
  if (color) context.draw_color(color)
  context.clear()
}

render.present = function()
{
  context.present()
}

render.camera = function(cam)
{
  context.camera(cam);
}

return render