import display_gloss as dg
import synonyms_preprocess as sp
from NLP_Spacy_base_translator import NlpSpacyBaseTranslator 
from flask import Flask, render_template, Response, request, jsonify
import requests

app = Flask(__name__, static_folder='static')
app.config['TITLE'] = 'Sign Language Translate'

nlp, dict_docs_spacy = sp.load_spacy_values()
dataset, list_2000_tokens = dg.load_data()

def translate_korean_to_english(text):
    url = "https://translate.googleapis.com/translate_a/single"
    params = {
        "client": "gtx",
        "sl": "ko",
        "tl": "en",
        "dt": "t",
        "q": text
    }
    response = requests.get(url, params=params)
    return response.json()[0][0][0]

@app.route('/')
def index():
    return render_template('index.html', title=app.config['TITLE'])

@app.route('/translate/', methods=['POST'])
def result():
    if request.method == 'POST':
        korean_sentence = request.form['inputSentence']
        try:
            english_translation = translate_korean_to_english(korean_sentence)
            eng_to_asl_translator = NlpSpacyBaseTranslator(sentence=english_translation)
            generated_gloss = eng_to_asl_translator.translate_to_gloss()
            
            gloss_list_lower = [gloss.lower() for gloss in generated_gloss.split() if gloss.isalnum()]
            gloss_sentence_before_synonym = " ".join(gloss_list_lower)
            
            gloss_list = [sp.find_synonyms(gloss, nlp, dict_docs_spacy, list_2000_tokens) 
                         for gloss in gloss_list_lower]
            gloss_sentence_after_synonym = " ".join(gloss_list)
            
            return render_template('result.html',
                                title=app.config['TITLE'],
                                original_sentence=korean_sentence,
                                english_translation=english_translation,
                                gloss_sentence_before_synonym=gloss_sentence_before_synonym,
                                gloss_sentence_after_synonym=gloss_sentence_after_synonym)
        except Exception as e:
            return render_template('error.html', error=str(e))

@app.route('/video_feed')
def video_feed():
    sentence = request.args.get('gloss_sentence_to_display', '')
    gloss_list = sentence.split()
    return Response(dg.generate_video(gloss_list, dataset, list_2000_tokens), 
                   mimetype='multipart/x-mixed-replace; boundary=frame')

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000, debug=True)