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import re
import funcy
import csv
import numpy as np
import datetime
import json
from collections import defaultdict
import glob
from scipy.spatial.distance import cosine


with open('data/styles.json') as f:
    styles = json.load(f)



with open('data/beer_info.json', 'r') as f:
    beer_names = json.load(f)


attr_to_styles = defaultdict(list)
style_to_attrs = defaultdict(list)
with open('data/sparser_beer_data.csv') as f:
    reader = csv.DictReader(f)
    for line in reader:
        style = line.pop('Style')
        for k, v in line.items():
            if v == '1':
                attr_to_styles[k].append(style)
                style_to_attrs[style].append(k)


# In[7]:

with open('data/final_data_small.json') as f:
    final_data = json.load(f)




beer_by_style = defaultdict(list)
for beer, data in final_data.items():
    try:
        real_style = beer_names[beer][1][0]
        if beer_names[beer][3] > 7:
            beer_by_style[real_style].append(data['embed'])
        
    except:
        pass


style_centers = {}
for style, datas in beer_by_style.items():
    style_centers[style.strip()] = np.mean(datas, axis=0)



style_name_to_num = {y[0]: x for x,y in styles.items()}




attr_centers = {}
for attr, rel_styles in attr_to_styles.items():
    centers = [style_centers[x] for x in rel_styles]
    attr_mean = np.mean(centers, axis=0)
    attr_centers[attr] = attr_mean



embeddings =  [(x[0], x[1]['embed']) for x in final_data.items()]



small_embeddings = []
small_styles = []
bad = 0
for e in embeddings:
    newkey =  e[0]
    if newkey in beer_names:
        info= beer_names[newkey]
        
        if info[3] > 25:
            small_embeddings.append(e)
            small_styles.append(info[1][0])
    else:
        bad += 1

def get_closest(beer_id):
    one_embed = final_data[beer_id]['embed']
    

    for thing in sorted(small_embeddings, key = lambda x: cosine(one_embed, x[1]), reverse=False)[:25]:

        if thing[0] in beer_names:
            print(beer_names[thing[0]])
            print('=' * 50)
            
def get_closest_to_point(one_embed, style_limit=[]):
#     one_embed = final_data[beer_id]['embed']

    if style_limit:
        possible_beers = []
        for style, e in zip(small_styles, small_embeddings):
            if style == style_limit:
                possible_beers.append(e)
    else:
        possible_beers = small_embeddings
    print(len(possible_beers))
    for thing in sorted(possible_beers, key = lambda x: cosine(one_embed, x[1]), reverse=False)[:5]:

        
#         print(b, a)
        if thing[0] in beer_names:
            bn = beer_names[thing[0]]
            print(bn[0], '---', bn[1][0])
            print('=' * 50)# In[16]:


def translate_to_attr(embedding, to_attr):
    if to_attr.startswith('-'):
        back = True
        to_attr = to_attr[1:]
        
    else:
        back = False

    relevant_styles = attr_to_styles[to_attr]
    small_rel_centers = {x: y for x, y in style_centers.items() if x in relevant_styles}

    sorted_centers = sorted(small_rel_centers, key=lambda x: cosine(small_rel_centers[x], embedding))
    closest_center = sorted_centers[0]
    closest_center_vector = style_centers[closest_center]
    
    vector_between = closest_center_vector - embedding

    print('Moving Towards/From: {}'.format(closest_center))
    print('=' *10)
    print('\n')
    dist_between = np.linalg.norm(closest_center_vector-embedding)
    for x in [4,2, 1]:
        print('Moving {}%'.format(1/float(x) * 100))
        if back:
            new_point = embedding - (vector_between/x/5)
        else:
            new_point = embedding + (vector_between/x)
        get_closest_to_point(new_point)
        print('-' * 25)

def translate_to_style(embedding, style):

    closest_center_vector = style_centers[style]
    
    vector_between = closest_center_vector - embedding
#     print(vector_between)
    print('Moving Towards/From: {}'.format(style))
    print('=' *10)
    print('\n')
    dist_between = np.linalg.norm(closest_center_vector-embedding)
    for x in [4,2, 1]:
        print('Moving {}%'.format(1/float(x) * 100))

        new_point = embedding + (vector_between/x)
        get_closest_to_point(new_point, style_limit=style)
        print('-' * 25)


# In[17]:


# beer_id = '388-1703'  # cantillio gueueze
# beer_id = '140-276'  # SN pale ale
beer_id = '4-59'  # allagash white
# beer_id = '64-33832' # palo salto marron

info = beer_names[beer_id]
print('Real ABV: {}'.format(info[2]))

one_embed = final_data[beer_id]['embed']
translate_to_style(one_embed, 'Belgian Quadrupel (Quad)')


# In[22]:


# beer_id = '388-1703'  # cantillio gueueze
# beer_id = '140-276'  # SN pale ale
beer_id = '4-59'  # allagash white
# beer_id = '64-33832' # palo salto marron

info = beer_names[beer_id]
print('Real ABV: {}'.format(info[2]))

one_embed = final_data[beer_id]['embed']
translate_to_attr(one_embed, 'Hoppy')


# In[ ]:





# In[ ]: