local Debug = GameLab.Debug
local AssetBrowser = GameLab.Editor.GUI.EditorWindow.Extend("GameLab.Editor.AssetBrowser")
local GL = GameLab.Engine.GL
local Matrix44 = GameLab.Engine.Math.Matrix44
local inspect = require("inspect")

AssetBrowser.Ctor = function(self)
	self.base.Ctor(self, "AssetBrowser")
end

local shader = nil

local glsl = [[

#version 330 core

VSH_BEGIN

layout (location = 0) in vec2 vPos;
layout (location = 1) in vec2 vUV;

uniform mat4 mvp;

void main()
{
	vec4 clip = mvp * vec4(vPos, -1, 1.0);
	gl_Position = clip;
}

VSH_END

FSH_BEGIN

out vec4 FragColor;

void main()
{
	FragColor = vec4(1,1,1,1);
}
FSH_END

]]

AssetBrowser.OnGUI = function(self)

	if shader == nil then 
		shader = GameLab.Engine.Rendering.Shader.New(glsl)
	end 

	local ortho = Matrix44.New() 
    ortho:SetOrtho(-200, 200, -200, 200, 0.1, 10)

	Debug.Log("AssetBrowser.OnGUI()")
	GL.ClearColor({0,0,0,1})
	GL.Clear(GL.EBufferType.ColorBuffer)
	-- GL.Color({1,1,0,1})
	-- GL.LoadPixelMatrix(-250, 250, -300, 300)
	-- GL.Begin(GL.EPrimitiveType.Triangles)
	-- GL.Vertex({0,0,-1})
	-- GL.Vertex({0,300,-1})
	-- GL.Vertex({250,0,-1})
	-- GL.End()

	shader:Use()
	shader:SetMatrix44("mvp", ortho)
	GameLab.Engine.Rendering.DrawUIQuad({0, 0, 100, 100})

end

AssetBrowser.OnFocus = function(self)

end

return AssetBrowser