#!/usr/bin/env python
#
# This illustrates the call-flow required to complete an OAuth request
# against the discogs.com API, using the discogs_client libary.
# against the discogs.com API, using python3-discogs-client libary.
# The script will download and save a single image and perform and
# an API search API as an example. See README.md for further documentation.

import sys
import discogs_client
from discogs_client.exceptions import HTTPError
# Your consumer key and consumer secret generated and provided by Discogs.
# See http://www.discogs.com/settings/developers . These credentials
# are assigned by application and remain static for the lifetime of your discogs
# application. the consumer details below were generated for the
# 'discogs-oauth-example' application.
# NOTE: these keys are typically kept SECRET. I have requested these for
# demonstration purposes.
consumer_key = 'JJCOegYnRLCLRejtcZbo'
consumer_secret = 'UFlGrCViqSkoBNfRTGZyUfmpTGNbFbMM'
# A user-agent is required with Discogs API requests. Be sure to make your
# user-agent unique, or you may get a bad response.
user_agent = 'discogs_api_example/2.0'
# instantiate our discogs_client object.
discogsclient = discogs_client.Client(user_agent)
# prepare the client with our API consumer data.
discogsclient.set_consumer_key(consumer_key, consumer_secret)
token, secret, url = discogsclient.get_authorize_url()
print(' == Request Token == ')
print(f'    * oauth_token        = {token}')
print(f'    * oauth_token_secret = {secret}')
print()
# Prompt your user to "accept" the terms of your application. The application
# will act on behalf of their discogs.com account.
# If the user accepts, discogs displays a key to the user that is used for
# verification. The key is required in the 2nd phase of authentication.
print(f'Please browse to the following URL {url}')
accepted = 'n'
while accepted.lower() == 'n':
    print
    accepted = input(f'Have you authorized me at {url} [y/n] :')
# Waiting for user input. Here they must enter the verifier key that was
# provided at the unqiue URL generated above.
oauth_verifier = input('Verification code : ')
try:
    access_token, access_secret = discogsclient.get_access_token(oauth_verifier)
except HTTPError:
    print('Unable to authenticate.')
    sys.exit(1)
# fetch the identity object for the current logged in user.
user = discogsclient.identity()
print
print(' == User ==')
print(f'    * username           = {user.username}')
print(f'    * name               = {user.name}')
print(' == Access Token ==')
print(f'    * oauth_token        = {access_token}')
print(f'    * oauth_token_secret = {access_secret}')
print(' Authentication complete. Future requests will be signed with the above tokens.')
# With an active auth token, we're able to reuse the client object and request
# additional discogs authenticated endpoints, such as database search.
search_results = discogsclient.search('Out In The Sun', type='release', artist='Patrick Moraz')
print('\n== Search results for release_title=Out In The Sun ==')
#print(search_results)
for release in search_results:
    print(f'\n\t== discogs-id {release.id} ==')
    print(f'\tArtist\t: {", ".join(artist.name for artist in release.artists)}')
    print(f'\tTitle\t: {release.title}')
    print(f'\tYear\t: {release.year}')
    print(f'\tReleased\t {release.master_id}')
    print(f'\tLabels\t: {", ".join(label.name for label in release.labels)}')
# You can reach into the Fetcher lib if you wish to used the wrapped requests
# library to download an image. The following example demonstrates this.
#image = search_results[0].images[0]['uri']
#content, resp = discogsclient._fetcher.fetch(None, 'GET', image,
#                headers={'User-agent': discogsclient.user_agent})
#print(' == API image request ==')
#print(f'    * response status      = {resp}')
#print(f'    * saving image to disk = {image.split("/")[-1]}')
#with open(image.split('/')[-1], 'wb') as fh:
#    fh.write(content)