####################################################################################################
#
# Invoking X3D model self-test:
#
#   $ python HelloTaiwan.py
#
# Python package x3d.py package is available on PyPI for import.
#   This approach simplifies Python X3D deployment and use.
#   https://pypi.org/project/x3d
#
# Installation:
#       pip install x3d
# or
#       python -m pip install x3d
#
# Developer options for loading x3d package in other Python programs:
#
#    from x3d import *  # preferred approach, terser source that avoids x3d.* class prefixes
#
# or
#    import x3d         # traditional way to subclass x3d package, all classes require x3d.* prefix,
#                       # but python source is very verbose, for example x3d.Material x3d.Shape etc.
#                       # X3dToPython.xslt stylesheet insertPackagePrefix=true supports this option.
#
####################################################################################################

from x3d import *

newModel=X3D(profile='Immersive',version='3.3',
  head=head(
    children=[
    meta(content='HelloTaiwan.x3d',name='title'),
    meta(content='Hello World: Hello Taiwan in Traditional Chinese, 您好，臺�!!',name='description'),
    meta(content='Ben Cheng and Don Brutzman',name='creator'),
    meta(content='7 June 2013',name='created'),
    meta(content='8 October 2023',name='modified'),
    meta(content='HelloWorld.x3d',name='reference'),
    meta(content='Hello World Example',name='subject'),
    meta(content='https://www.web3d.org/realtime-3d/news/internationalization-x3d',name='reference'),
    meta(content='https://en.wikipedia.org/wiki/Traditional_Chinese_characters',name='reference'),
    meta(content='images/HelloTaiwan.png',name='Image'),
    meta(content='images/HelloTaiwanBsContact.png',name='Image'),
    meta(content='images/HelloTaiwanH3Dviewer.png',name='Image'),
    meta(content='images/HelloTaiwanInstantReality.png',name='Image'),
    meta(content='images/HelloTaiwanView3dscene.png',name='Image'),
    meta(content='images/HelloTaiwanX3DOM.png',name='Image'),
    meta(content='images/HelloTaiwanXj3D.png',name='Image'),
    meta(content='https://en.wikipedia.org/wiki/Taiwan',name='reference'),
    meta(content='http://zh.wikipedia.org/wiki/%E4%B8%AD%E8%8F%AF%E6%B0%91%E5%9C%8B',name='reference'),
    meta(content='Flag_of_the_Republic_of_China.svg',name='Image'),
    meta(content='Flag_of_the_Republic_of_China.png',name='Image'),
    meta(content='https://en.wikipedia.org/wiki/File:Flag_of_the_Republic_of_China.svg',name='Image'),
    meta(content='http://en.wikibooks.org/w/index.php?title=Computer_Programming/Hello_world',name='reference'),
    meta(content='https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/HelloWorldScenes/HelloTaiwan.x3d',name='identifier'),
    meta(content='X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit',name='generator'),
    meta(content='../license.html',name='license')]),
  Scene=Scene(
    children=[
    WorldInfo(title='Hello Taiwan!! 您好，臺�!!'),
    Viewpoint(description='Hello Taiwan!! 您好，臺�!!',position=(0,1,6)),
    #  character entities: "您好，臺灣 
    Transform(translation=(2,1,0),
      children=[
      Shape(
        geometry=Text(string=["您","好","臺","�","您好，臺�"],
          #  "您" "好" "臺" "灣" 
          fontStyle=FontStyle(horizontal=False,justify=["MIDDLE","MIDDLE"],style_='BOLDITALIC')),
        appearance=Appearance(DEF='TextAppearance',
          material=Material(diffuseColor=(1,1,1))))]),
    Transform(translation=(-0.5,-1.25,0),
      children=[
      Shape(
        geometry=Text(string=["Hello Taiwan !!"],
          fontStyle=FontStyle(justify=["MIDDLE","MIDDLE"],style_='BOLDITALIC')),
        appearance=Appearance(USE='TextAppearance')),
      Transform(translation=(-0.4,2.6,0),
        children=[
        Anchor(description='Taiwan Wikipedia page',url=["https://en.wikipedia.org/wiki/Taiwan"],
          children=[
          Shape(
            geometry=Box(size=(4.5,3,.0001)),
            appearance=Appearance(
              texture=ImageTexture(url=["Flag_of_the_Republic_of_China.png","https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/HelloWorldScenes/Flag_of_the_Republic_of_China.png"])))])])])])
) # X3D model complete

####################################################################################################
# Self-test diagnostics
####################################################################################################

print('Self-test diagnostics for HelloTaiwan.py:')
if        metaDiagnostics(newModel): # built-in utility method in X3D class
    print(metaDiagnostics(newModel)) # display meta info, hint, warning, error, TODO values in this model
# print('check newModel.XML() serialization...')
newModelXML= newModel.XML() # test export method XML() for exceptions during export
newModel.XMLvalidate()
# print(newModelXML) # diagnostic

try:
#   print('check newModel.VRML() serialization...')
    newModelVRML=newModel.VRML() # test export method VRML() for exceptions during export
    # print(prependLineNumbers(newModelVRML)) # debug
    print("Python-to-VRML export of VRML output successful", flush=True)
except Exception as err: # usually BaseException
    # https://stackoverflow.com/questions/18176602/how-to-get-the-name-of-an-exception-that-was-caught-in-python
    print("*** Python-to-VRML export of VRML output failed:", type(err).__name__, err)
    if newModelVRML: # may have failed to generate
        print(prependLineNumbers(newModelVRML, err.lineno))

try:
#   print('check newModel.JSON() serialization...')
    newModelJSON=newModel.JSON() # test export method JSON() for exceptions during export
#   print(prependLineNumbers(newModelJSON)) # debug
    print("Python-to-JSON export of JSON output successful (under development)")
except Exception as err: # usually SyntaxError
    print("*** Python-to-JSON export of JSON output failed:", type(err).__name__, err)
    if newModelJSON: # may have failed to generate
        print(prependLineNumbers(newModelJSON,err.lineno))

print("python HelloTaiwan.py load and self-test diagnostics complete.")