import os

import json

prev = './knowledge_graph_data/'

info = {}

def get_concept_number(data):

return len(data.split('"name"')) - 1

def preload():

global info

with open(prev + 'basic_info.json', 'r', encoding='utf-8') as f:

tmp = f.read().split('\n')

for line in tmp:

if line == '':

continue

a = json.loads(line)

info[a['field']] = a

with open(prev + 'data.json', 'r', encoding='utf-8') as f:

tmp = f.read().split('\n')

for line in tmp:

if line == '':

continue

a = json.loads(line)

field = a['name']

info[field]['data'] = a

info[field]['concept-number'] = get_concept_number(line)

def load_info(field):

if field not in info:

return None

res = {}

res['title'] = field

pre = info[field]

if 'data' not in pre:

file = prev + 'data/' + field + '.json'

if not os.path.exists(file):

return None

with open(file, 'r', encoding='utf-8') as f:

raw = f.read()

data = json.loads(raw)

pre['data'] = data

if 'intro' not in pre:

file = prev + 'intro/'+ field + '.html'

if os.path.exists(file):

with open(file, 'r', encoding='utf-8') as f:

code = f.read()

else:

code = ''

text = []

text.append('当前为{}级领域'.format(len(pre['routes'])))

if len(pre['routes']) > 0:

fa = pre['routes'][0]

text.append('上位领域：<a href="/mooc_knowledge_graph/{}">{}</a>'.format(fa, fa))

if len(pre['subfields']) > 0:

text.append('直接子领域有{}个，二级子领域有{}个'.format(len(pre['subfields']), pre['grand_son_number']))

text.append('包含领域/概念总数{}个'.format(pre['all_son_number']))

text = '<hr /><p><b>当前领域的信息：</b> <br /> 本领域为 {} <br /> {}</p>'.format(field, '<br />'.join(text))

pre['intro'] = code + text

res['intro'] = pre['intro']

if len(pre['subfields']) > 0:

html = '<hr /><div id="buttons"><p><b>下位领域：</b></p>'

for button in pre['subfields']:

#labeled = False if button not in info else info[button]['is_labeled']

#color = 'btn-success' if labeled else 'btn-light'

color = 'btn-light'

html += '<a href="/mooc_knowledge_graph/{}"><button type="button" class="btn {} my-button">{}</button></a>'.format(button, color, button)

html += '</div>'

else:

html = ''

res['buttons_html'] = html

return res

def load_data(field):

global info

if field not in info or 'data' not in info[field]:

return None

return info[field]['data']

preload()