app.py

from flask import Flask, redirect
from flask import request, render_template, send_file, request
import config
from bigchaindb_driver import BigchainDB
from bigchaindb_driver.crypto import generate_keypair
from mongoUtil import *
from utils import bdb_donate, bdb_pay, add_transaction_to_collection, get_transactions, get_transaction_by_id
from pymongo import MongoClient
import json
import sys
from random import *
import random

app = Flask(__name__,static_url_path='/static')

blockchain_db = BigchainDB(config.BLOCKCHAIN_URL)
client = MongoClient(config.MONGO_HOST, 27017).bitdonate
user = generate_keypair()

countries=['Algeria', 'Bahrain', 'Egypt', 'Iran', 'Iraq', 'Palestine', 'Jordan', 'Kuwait', 'Lebanon', 'Libya', 'Morocco', 'Oman', 'Qatar', 'Saudi Arabia', 'Syria', 'Tunisia', 'United Arab Emirates', 'Yemen', 'Ethiopia' , 'Sudan']
@app.route('/')
def index():
    return render_template('index.html')


@app.route('/donate', methods=['GET', 'POST'])
def donate():
    """
    Take a donater name and an amount and put a transaction into the blockchain
    """
    if request.method == 'GET':
        return render_template('donate.html')
    elif request.method == 'POST':
        name = request.form.get('name').split()
        first = name[0]
        try:
            last = name[1]
        except IndexError:
            last = ""
        cc=request.form.get('cc')
        try:
            email = request.form['email']
        except KeyError:
            email = 'myemail@college.edu'
        amount= request.form.get('amount')
        country = countries[randrange(len(countries))]
        donater_name=first+"_"+last+"_"+email
        sent_txid = bdb_donate(blockchain_db, user, donater_name, amount)
        userId = addDonation(client,first,last,email,sent_txid,country)
        add_transaction_to_collection(client, 'donate', sent_txid)
        return redirect("/user_donations?id={}".format(userId))


@app.route('/pay', methods=['GET', 'POST'])
def pay():
    """
    Take a vendor name and an amount and put that expenditure transaction into the blockchain
    """
    if request.method == 'GET':
        return render_template('pay.html')
    elif request.method == 'POST':
        vendor_name = request.form.get('vendor_name')
        amount = request.form.get('amount')
        item = request.form.get('item')
        print(vendor_name)
        print(amount)
        sent_txid = bdb_pay(blockchain_db, user, vendor_name, amount, item)
        add_transaction_to_collection(client, 'pay', sent_txid)
        print("added transaction id to mongo")
        return redirect('/portal')



@app.route('/user_donations', methods=['GET'])
def userDonations():
    if request.args.get('id'):
        donations=getDonersAllDonations(client,request.args.get('id'))
        tids=list(map(lambda x: x['tid'],donations))
        transactoions=list(map(lambda x: get_transaction_by_id(blockchain_db,x), tids))
        amounts= list(map(lambda x: x['amount'],transactoions))
        amounts= list(map(lambda x: int(x),amounts))
        total=0
        benifit=["you Helped with the cost of buying pens for children","you Helped with the cost of buying bags for children",'you Helped with the cost of buying computers for chilren','you Helped with the cost of going on a trip']
        for amount in amounts:
            total+=amount
        DonationsList=list()
        dates=list()
        amount=list()
        for i in range(len(amounts)):
            DonationsList.append({"amount": amounts[i],
            "timestamp":donations[i]['timestamp'],
            'benefit': random.choice(benifit)
            })
            dates.append(donations[i]['timestamp'])
        return render_template('user.html',total=total,list=DonationsList)
        # return "total: {} \n donations: \n you donated in {}".format(total,DonationsList)
    return redirect("/")


@app.route('/donate_transactions', methods=['GET'])
def donate_transactions():
    """
    Shows all the donations made to the charity
    """
    collection = client.donate_transactions
    tx_list = get_transactions(client, blockchain_db, 'donate')
    sum = 0
    for tx in tx_list:
        try:
            sum += int(tx['amount'])
        except Exception as e:
            pass
    return render_template(
        'donate_transactions.html',
        tx_list=get_transactions(client, blockchain_db, 'donate'),
        sum=sum,
    )


@app.route('/pay_transactions', methods=['GET'])
def pay_transactions():
    """
    Shows all the vendor payments made by the charity.
    """
    collection = client.pay_transactions
    tx_list = get_transactions(client, blockchain_db, 'pay')
    sum = 0
    for tx in tx_list:
        try:
            sum += int(tx['amount'])
            print("hello", file=sys.stderr)
        except Exception as e:
            print(str(e), file=sys.stderr)
            print("error", file=sys.stderr)
            pass
    return render_template(
        'pay_transactions.html',
        tx_list=get_transactions(client, blockchain_db, 'pay'),
        sum=sum,
    )
@app.route('/portal')
def portal():
    dtx_list = get_transactions(client, blockchain_db, 'donate')
    dsum = 0
    for tx in dtx_list:
        try:
            dsum += int(tx['amount'])
        except:
            pass
    ptx_list = get_transactions(client, blockchain_db, 'pay')
    psum=0
    for tx in ptx_list:
        try:
            psum += int(tx['amount'])
        except:
            pass
    return render_template(
        'bootstrap.html',
        dtx_list=dtx_list,
        ptx_list=ptx_list,
        dsum=dsum,
        psum=psum,
    )


if __name__ == '__main__':
    app.run(
        debug=True,
        host='0.0.0.0',
        port=3031,
    )