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path: root/scraper/s2-search.py
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import os
import sys
import csv
import subprocess
import time
import random
import re
import simplejson as json
import click
from s2 import SemanticScholarAPI
from util import *

'''
s2 search API format:
results
matchedAuthors
matchedPresentations
query
querySuggestions
results
stats
totalPages
totalResults
'''

@click.command()
@click.option('--index', '-n', default=0, help='Index of CSV (query,)')
def fetch_entries(index):
  keys, lines = read_citation_list(index)
  citation_lookup = []
  s2 = SemanticScholarAPI()
  for line in lines:
    key = line[0]
    name = line[1]
    title = line[2].trim()
    clean_title = re.sub(r'[^-0-9a-zA-Z ]+', '', line[2])
    if len(clean_title) < 2:
      continue
    dump_fn = './datasets/s2/dumps/{}.json'.format(key)
    entry_fn = './datasets/s2/entries/{}.json'.format(key)
    result = None
    if os.path.exists(entry_fn):
      result = read_json(entry_fn)
    else:
      results = s2.search(clean_title)
      write_json(dump_fn, results)
      if len(results['results']) == 0:
        print("- {}".format(title))
      else:
        print("+ {}".format(title))
        result = results['results'][0]
        write_json(entry_fn, result)
    if result:
      paper_id = result['id']
      paper = fetch_paper(s2, paper_id)
      citation_lookup.append([key, name, title, paper_id])
  write_csv("datasets/citation_lookup.csv", keys=['key', 'name', 'title', 'paper_id'], rows=citation_lookup)

def fetch_paper(s2, paper_id):
  os.makedirs('./datasets/s2/papers/{}/{}'.format(paper_id[0:2], paper_id), exist_ok=True)
  paper_fn = './datasets/s2/papers/{}/{}/paper.json'.format(paper_id[0:2], paper_id)
  if os.path.exists(paper_fn):
    return read_json(paper_fn)
  print(paper_id)
  paper = s2.paper(paper_id)
  if paper is None:
    print("Got none paper??")
    # time.sleep(random.randint(1, 2))
    paper = s2.paper(paper_id)
    if paper is None:
      print("Paper not found")
      return None  
  write_json(paper_fn, paper)
  # time.sleep(random.randint(1, 2))
  return paper

if __name__ == '__main__':
  fetch_entries()