import os

path ="../examples/"
    
def process_index_rst(path):
#  print(path)
  with open(path) as fp:
    last_line=""
    line=""
    title_tmp=""
    line = fp.readline()
    d = {}
    while line:
      if line[0:3] == '"""':
        title_tmp = last_line
      elif line[0:15] ==".. lv_example::":
        name = line[16:].strip()
        title_tmp = title_tmp.strip()
        d[name] = title_tmp
      last_line = line
      line = fp.readline()

    return(d)
      

filelist = []
for root, dirs, files in os.walk(path):
	for f in files:
    #append the file name to the list
		filelist.append(os.path.join(root,f))

filelist = [ fi for fi in filelist if fi.endswith("index.rst") ]

d_all = {}
#print all the file names
for fn in filelist:
   d_act = process_index_rst(fn)
   d_all.update(d_act)

h1= {
  "get_started":"Get started", 
  "styles":"Styles", 
  "anim":"Animations", 
  "event":"Events", 
  "layouts":"Layouts", 
  "scroll":"Scrolling",
  "widgets":"Widgets"
}

widgets = {
"obj":"Base object",
"arc":"Arc",
"bar":"Bar",
"btn":"Button","btnmatrix"
"calendar":"Calendar",
"canvas":"Canvas",
"chart":"Chart",
"checkbox":"Checkbox",
"colorwheel":"Colorwheel",
"dropdown":"Dropdown",
"img":"Image",
"imgbtn":"Image button",
"keyboard":"Keyboard",
"label":"Label",
"led":"LED",
"line":"Line",
"list":"List",
"meter":"Meter",
"msgbox":"Message box",
"roller":"Roller",
"slider":"Slider",
"span":"Span",
"spinbox":"Spinbox",
"spinner":"Spinner",
"switch":"Switch",
"table":"Table",
"tabview":"Tabview",
"textarea":"Textarea",
"tileview":"Tabview",
"win":"Window",
}

layouts = {
"flex":"Flex",
"grid":"Grid",
}

fout = open("examples.md", "w")

def print_item(path, lvl):
  for k in d_all:
    v = d_all[k]
    b = os.path.basename(k)
    if k.startswith(path + "/lv_example_"):
     fout.write("#"*lvl + " " + v + "\n")
     fout.write('<iframe class="lv-example" src="_static/built_lv_examples?example=' + b +'&amp;w=320&amp;h=240"></iframe>\n')
     fout.write("\n")

def exec():
  fout.write("```eval_rst\n")
  fout.write(".. include:: /header.rst\n") 
  fout.write(":github_url: |github_link_base|/examples.md\n")
  fout.write("```\n")
  fout.write("\n")
  fout.write("# Examples\n")

  for h in h1:
    fout.write("## " + h1[h] + "\n")
    
    if h == "widgets":
      for w in widgets:
        fout.write("### " + widgets[w] + "\n")
        print_item(h + "/" + w, 4)
    elif h == "layouts":
      for l in layouts:
        fout.write("### " + layouts[l] + "\n")
        print_item(h + "/" + l, 4)
    else:
      print_item(h, 3)   
      
    fout.write("")