#!/usr/bin/env python

# Currently only tested with Python3

from __future__ import print_function

import os
import sys
import json

import argparse

import requests
import urllib.parse

import util

apiKey = util.readKey("oacore-key.txt")

# Example DOI from CORE v3 API:
#  https://api.core.ac.uk/docs/v3#operation/null
# (scroll down to Discovery)
#
oacore_doi="10.1016/0370-2693(96)00910-0"

# Bainbridge et al example, IJDL user-centric approach ...
stinky_doi="10.1145/1998076.1998084"

print("Selecting Core example DOI: " + oacore_doi)
doi = oacore_doi


# Based on:
#    https://stackoverflow.com/questions/25491090/how-to-use-python-to-execute-a-curl-command

base_url = "https://api.core.ac.uk/v3"

search_work_url = base_url+"/search/works/"
discover_url    = base_url+"/discover"

headers = {
    'Content-type': 'application/json'
}


query_args = "api_key="+apiKey+"&q="+urllib.parse.quote_plus("doi:\""+doi+"\"")
query_url  = search_work_url + "?" + query_args


print("query_url="+query_url)

response = requests.get(query_url, headers=headers)


#data = '{}'
# More work to be done to see if the following can be made to work
#data = {
#    "api_key": apiKey,
#    "q":       "doi:\""+doi+"\""
#}
#response = requests.get(query_url, headers=headers, data=data)


returned_json_str = response.content

returned_json = json.loads(returned_json_str)
returned_json_prettyprint = json.dumps(returned_json, indent=2)
      
print(returned_json_prettyprint)


# Or consider using their Python API:
#
#    https://github.com/oacore/pyoacore

# They also support Java, R and (it looks like) NodeJS


# https://core.ac.uk/search?q=doi%3A%2210.1186%2F1471-2458-6-309%22&page=1