from flask import Flask
from flask import render_template
import json
import random
import re

app = Flask(__name__)

with open("./data/beers.json") as beers_json:
    beer = json.loads(beers_json.read())

@app.route('/')
def index():
    return render_template('Homepage.jinja2', suggestions=all_beer_names())

@app.route('/random')
def random_beer():
    rando = random.choice(list(beer.keys()))
    return render_template('random_beer.jinja2', beer=beer[rando])

@app.route('/similar', methods=['POST'])
def similar():
    return render_template('similar.jinja2', beers=[])

@app.route('/brewery/<brewery_id>/')
def get_brewery_list(brewery_id):
    return json.dumps(find_beers_from_brewery(brewery_id))

@app.route('/brewery/<brewery_id>/<beer_id>')
def get_beer_details(brewery_id, beer_id):
    beer_result = beer_lookup(brewery_id,beer_id)
    return render_template('beerpage.jinja2', beer_data=beer_result)

def beer_lookup(brewery_id, beer_id):
    item_id = brewery_id + "-" + beer_id
    try:
        beer_result = beer[item_id]
        return beer_result
    except:
        return None

def all_beer_names():
    return [value[0] for key, value in beer.items()]

def find_beers_from_brewery(brewery_id):
    pattern = re.compile('^' + brewery_id + '-.*')
    beers =  [value for key, value in beer.items() if pattern.match(key)]
    return beers

if __name__ == '__main__':
    app.run()

class BeerInfo(object):

    def __init__(self, item_json):
        self.parent_style = item_json[1][1]
        self.base_style = item_json[1][0]
        self.name = item_json[0]
        self.abv = item_json[2]

class Brewery(object):
    def __init__(self, id):
        self.id = id
        self.brews = []

    def add_brew(self, brew):
        self.brews.append(brew)