from flask import Flask, request
import classla
import gc

classla.download('sl')
classla.download('sl', type='standard_jos')
classla.download('sl', type='nonstandard')

nlp_standard_UD = classla.Pipeline('sl', pos_use_lexicon=True)
nlp_standard_JOS = classla.Pipeline('sl', pos_use_lexicon=True, type='standard_jos')
nlp_nonstandard_UD = classla.Pipeline('sl', type='nonstandard')
nlp_nonstandard_JOS = classla.Pipeline('sl', processors={
      "tokenize": "nonstandard",
      "lemma": "nonstandard",
      "pos": "nonstandard",
      "depparse": "standard_jos",
      "ner": "nonstandard"
    })
app = Flask(__name__)


@app.route('/')
def hello_world():
    return 'API is running...'


@app.route('/custom-settings', methods=["POST"])
def custom_settings():
    input_json = request.get_json(force=True)
    if 'settings' in input_json:
        settings = input_json['settings']
        nlp = classla.Pipeline(**settings)
        # classla.Pipeline('sl', processors='tokenize,pos,lemma', pos_use_lexicon=True)
        result = nlp(input_json['text']).to_conll()
        del(nlp)
        gc.collect()
    else:
        return f'ERROR `settings` were not given!'
    return result


@app.route('/standard-ud', methods=["POST"])
def standard_ud():
    input_json = request.get_json(force=True)
    doc = nlp_standard_UD(input_json['text'])
    return doc.to_conll()


@app.route('/standard-jos', methods=["POST"])
def standard_jos():
    input_json = request.get_json(force=True)
    doc = nlp_standard_JOS(input_json['text'])
    return doc.to_conll()


@app.route('/nonstandard-ud', methods=["POST"])
def nonstandard_ud():
    input_json = request.get_json(force=True)
    doc = nlp_nonstandard_UD(input_json['text'])
    return doc.to_conll()


@app.route('/nonstandard-jos', methods=["POST"])
def nonstandard_jos():
    input_json = request.get_json(force=True)
    doc = nlp_nonstandard_JOS(input_json['text'])
    return doc.to_conll()


if __name__ == '__main__':
    app.run(host="0.0.0.0")