class HtmlOutput:
  """ Generates HTML from documentation model """

  def __init__(self):
    pass

  def generate_output(self, parsed_items):
    """Returns generated HTML strin"""
    return self.__get_html_begin() + \
        self.__get_html_middle(parsed_items) + \
        self.__get_html_end()

  def __get_html_begin(self):
    return '<!DOCTYPE html>\n<html>\n<head>\n<link rel="stylesheet" type="text/css" href="style.css" />\n</head>\n<body>\n'

  def __get_html_end(self):
    return '</body>\n</html>'

  def __get_html_middle(self, parsed_items):
    output = ''
    root_item = parsed_items[0]

    #output += '<h1 class="root_title">{}</h1>\n'.format(root_item['title'])
    #output += '<h1 class="root_title">{}</h1>\n'.format(root_item['title'])
    output +=  "Schema for Quay Enterprise"

    output += '<ul class="level0">\n'
    last_level = 0
    is_root = True
    for item in parsed_items:
      level = item['level'] - 1
      if last_level < level:
        output += '<ul class="level{}">\n'.format(level)
      for i  in range(last_level - level):
        output += '</ul>\n'
      last_level = level
      output += self.__get_html_item(item, is_root)
      is_root = False
    output += '</ul>\n'
    return output

  def __get_required_field(self, parsed_item):
    return 'required' if parsed_item['required'] else ''

  def __get_html_item(self, parsed_item, is_root):
    item = '<li class="schema item"> \n'
    item += '<div class="name">{}</div> \n'.format(parsed_item['name'])
    item += '<div class="type">[{}]</div> \n'.format(parsed_item['type'])
    item += '<div class="required">{}</div> \n'.format(self.__get_required_field(parsed_item))
    item += '<div class="docs">\n' if not is_root else '<div class="root_docs">\n'
    item += '<div class="title">{}</div>\n'.format(parsed_item['title'])
    item += ': ' if parsed_item['title'] != '' and parsed_item['description'] != '' else ''
    item += '<div class="description">{}</div>\n'.format(parsed_item['description'])
    item += '<div class="enum">enum: {}</div>\n'.format(parsed_item['enum']) if parsed_item['enum'] != '' else ''
    item += '<div class="minItems">Min Items: {}</div>\n'.format(parsed_item['minItems']) if parsed_item['type'] == "array" and parsed_item['minItems'] != "None" else ''
    item += '<div class="uniqueItems">Unique Items: {}</div>\n'.format(parsed_item['uniqueItems']) if parsed_item['type'] == "array" and parsed_item['uniqueItems'] else ''
    item += '<div class="pattern">Pattern: {}</div>\n'.format(parsed_item['pattern']) if parsed_item['pattern'] != 'None' and parsed_item['pattern'] != '' else ''
    item += '<div class="x-reference"><a href="{}">Reference: {}</a></div>\n'.format(parsed_item['x-reference'],parsed_item['x-reference']) if parsed_item['x-reference'] != '' else ''
    item += '<div class="x-example">Example: <code>{}</code></div>\n'.format(parsed_item['x-example']) if parsed_item['x-example'] != '' else ''
    item += '</div>\n'
    item += '</li>\n'
    return item