from http import HTTPStatus
from backend.models import db
from flask import json, render_template, request, redirect, Blueprint, Response
from ..models.UserCityModel import UserCityModel
from ..models.DestinationModel import DestinationModel
import sys
import os
sys.path.append(os.path.dirname(os.path.abspath(__file__))+ "/../../src/")
from algorithms.CosineSimilarityWithSimilarityCoefficient import CosineSimilarityWithSimilarityCoefficient
from algorithms.CosineSimilarity import CosineSimilarity
from algorithms.CollaborativeFiltering import CollaborativeFiltering
from algorithms.RandomSimilarity import RandomSimilarity

recommendationsBlueprint = Blueprint(
    'recommendations', __name__, url_prefix='')


@recommendationsBlueprint.route('/recommend/results', methods=['POST'])
def recommendationsResults():
    
    cities = request.form.getlist("city_name")
    result = DestinationModel.query.all()
    available_cities = [str(r).split(" ")[1].split(">")[0] for r in result]
    for c in cities:
        if c not in available_cities:
            cities.remove(c)

    cosine = CosineSimilarity()
    cosine_sim = CosineSimilarityWithSimilarityCoefficient()
    collab = CollaborativeFiltering()
    random = RandomSimilarity()
    if len(cities) != 0:
        recommendations = {
            "Cos Raw data": cosine.similarity_on_raw_data(cities), 
            "Cos Imputed data": cosine.similarity_on_imputed_data(cities),
            "Cos Binned features": cosine.similarity_on_binned_data(cities),
            "SVD": collab.similarity_with_SVD(cities),
            "Random": random.random_similarity(cities),
            "CosSim Raw data": cosine_sim.similarity_on_raw_data(cities), 
            "CosSim Imputed data": cosine_sim.similarity_on_imputed_data(cities),
            "CosSim Binned features": cosine_sim.similarity_on_binned_data(cities),
        }
    else:
        recommendations = {}
    return render_template("recommend.html", results=recommendations, cities=cities)