import requests
from bs4 import BeautifulSoup
from tqdm import tqdm
from pybtex.database import BibliographyData, Entry
from pybtex.database.input import bibtex
import pandas as pd
import time
import json
 
import random
 
 
def search_doi(doi):
    '''根據(jù)doi查論文詳細(xì)信息'''
    url = f'https://api.crossref.org/works/{doi}'
    response = requests.get(url)
    result = None
    if response.status_code == 200:
        result = response.json()['message']
    else:
        print('Error occurred')
    return result
 
# doi = 'https://dl.acm.org/doi/abs/10.1145/3394486.3403237'
# result = search_doi(doi)
# print(f"Title: {result['title'][0]}:{result['subtitle'][0]}")
# print(f"Author(s): {', '.join(author['given'] + ' ' + author['family'] for author in result['author'])}")
# print(f"Journal: {result['container-title'][0]}")
# print(f"Publication Date: {result['published-print']['date-parts'][0][0]}")
 
 
def search_cite(atid):
    '''根據(jù)atid查cite'''
    url = f'https://scholar.google.com/scholar?q=info:{atid}:scholar.google.com/&output=cite&scirp=8&hl=zh-CN'
    resp = requests.get(url)
    soup = BeautifulSoup(resp.text, 'lxml')
    result = {}
    for item in soup.find_all('tr'):
        cith = item.find('th', class_='gs_cith').getText()
        citr = item.find('div', class_='gs_citr').getText()
        result[cith] = citr
    return result
 
# result = search_cite('_goqYZv1zjMJ')
# print(result)
 
 
 
# 更改節(jié)點(diǎn)配置
def change_clash_node(node_name=None):
    # Clash API的URL和密碼
    url = 'http://127.0.0.1:15043/proxies/??國(guó)外流量'
    password = 'ee735f4e-59c6-4d60-a2ad-aabd075badb2'
    local_node_name = ['香港1-IEPL-倍率1.0', '香港2-IEPL-倍率1.0', '香港3-IEPL-倍率1.0', 
                       '臺(tái)灣1-IEPL-倍率1.0', '臺(tái)灣2-IEPL-倍率1.0', '臺(tái)灣3-IEPL-倍率1.0',
                       '新加坡1-IEPL-倍率1.0', '新加坡2-IEPL-倍率1.0', '新加坡3-IEPL-倍率1.0'
                       ]
    node_name = node_name or random.choice(local_node_name)
    print(f'當(dāng)前選擇節(jié)點(diǎn)名稱: {node_name}')
    
    headers = {'Authorization': password}
    data = {
        'name': 'Rule',
        'type': 'Selector',
        'now': node_name
    }
    response = requests.put(url, headers=headers, json=data)
    if response.status_code == 200:
        print('節(jié)點(diǎn)已更改為：', node_name)
    else:
        print('更改節(jié)點(diǎn)時(shí)出錯(cuò)：', response.text)
 
# 更改節(jié)點(diǎn)為my_node
# change_clash_node()
 
 
 
def proxy_requests(url):
    proxies = {
        'http': 'socks5://127.0.0.1:7890',
        'https': 'socks5://127.0.0.1:7890'
    }
    return requests.get(url, proxies=proxies)
 
 
def search(title='GNN', start=0):
    url = f'https://scholar.google.com/scholar?start={start}&q=allintitle:+{title}&hl=zh-CN&as_sdt=0,5'
    resp = proxy_requests(url)
    soup = BeautifulSoup(resp.text, 'lxml')
    try:
        papers_item = soup.find(id='gs_res_ccl_mid').find_all('div', class_='gs_scl')
    except:
        print(soup)
        if 'captcha-form' in soup:
            return -1
    papers_info = []
    for paper in papers_item:
        publisher = paper.find('div', class_='gs_or_ggsm').getText().split()[1].split('.')[0]
        href = paper.find('h3', class_='gs_rt').find('a').get('href')
        title = paper.find('h3', class_='gs_rt').find('a').getText()
        detail = paper.find('div', class_='gs_ri').find('div', class_='gs_a').getText()
        year = detail.split(',')[-1].strip()[:4]
        
        # atid = paper.find('h3', class_='gs_rt').find('a').get('data-clk-atid')
        # cite_info = search_cite(atid)['MLA']
        # cite_info_filter = list(filter(lambda x:x, map(lambda x:x.strip().strip('"').strip(), cite_info.strip().split('.'))))
        # author, title, publisher, year = cite_info_filter
        
        papers_info.append({'title':title, 'year':year, 'publisher':publisher, 'href':href})
    return papers_info
 
 
 
 
index_start = 0
index_end = 500
index_gap = 10
papers_store = []
bar = tqdm(total=index_end-index_start, desc=f'From {index_start} to {index_end}')
# for start in range(index_start, index_end, index_gap):
while index_start < index_end:
    try:
        papers_info = search(title='GNN', start=index_start)
        if papers_info == -1:
            print('需要驗(yàn)證碼，更換節(jié)點(diǎn)后2秒內(nèi)重試')
            change_clash_node()
            time.sleep(2)
            continue
        papers_store.extend(papers_info)
    except AttributeError as e:
        print(e)
        break
        
    index_start += index_gap
    bar.update(index_gap)
    bar.refresh()
    time.sleep(0.1)
bar.close()
 
df = pd.DataFrame(papers_info)
print(df)
df.to_csv('data.csv', index=False)