dsp-blockchain/gui/gui_helpers.py

from tkinter import *
from lib.chain import Chain, Block
from lib.transaction import Transaction
from lib.contract import Contract
from lib.block import CURRENT
from create_keys import get_keys
import rpyc

def add_contract():

    # add contract to the blockchain
    def add():
        contract1 = Contract()
        s = get_keys(sender.get())
        r = get_keys(recipient.get())

        contract1.create(title=title.get(),
                         desc=description.get(),
                         deadline=int(deadline.get()),
                         price=float(price.get()),
                         state = False,
                         client=s,
                         contractor=r)


        add_term(contract1)

    def add_term(contract1):
        
        def process_term():
            term1 = Contract.Term()
            term1.create(title=title2.get(),
                     desc=description2.get(),
                     deadline=int(deadline2.get()))

            contract1.add_term(term=term1)

            term_window.destroy()
            add_term(contract1)

        def complete():
            conn = rpyc.connect(host='localhost', port=42069, keepalive=True)

            # Bind contract to transaction
            transaction1 = Transaction()
            transaction1.set_contract(contract=contract1)
            r = recipient.get()
            transaction1.hash(recipient=r)

            # get the contract with transaction1.data
            # add reciever and sender keys and data
            # maybe the intital block value and modyfied by and state values
            # hash it with the public key of the reciever
            # send to push_transaction(hashed:str)
            # hashed has the format: {’sender’:..,’receiver’:…, ‘data’:encrypted contract} (see github readme)
            # deamon does the rest
            conn.root.push_transaction({'sender':get_keys(sender.get()), 'reciever':get_keys(recipient.get()), 'data':transaction1.hash_value})           
            conn.close()
            term_window.destroy()
            newWindow.destroy()

        term_window = Toplevel(newWindow)
        term_window.title('Add term')

        Label(term_window, text='Title: ').grid(row=0, column=0)
        title2 =  Entry(term_window, width=35, borderwidth=5)
        title2.grid(row=0, column=1, columnspan=3, padx=10, pady=10)

        Label(term_window, text='Description: ').grid(row=1, column=0)
        description2 =  Entry(term_window, width=35, borderwidth=5)
        description2.grid(row=1, column=1, columnspan=3, padx=10, pady=10)

        Label(term_window, text='Deadline: ').grid(row=2, column=0)
        deadline2 =  Entry(term_window, width=35, borderwidth=5)
        deadline2.grid(row=2, column=1, columnspan=3, padx=10, pady=10)

        Label(term_window, text='Recipient: ').grid(row=3, column=0)
        recipient1 =  Entry(term_window, width=35, borderwidth=5)
        recipient1.grid(row=3, column=1, columnspan=3, padx=10, pady=10)

        Button(term_window, text='Add term', command=process_term).grid(row=4,column=0)
        Button(term_window, text='Done', command=complete).grid(row=4,column=1)

        

    # make new window for adding the information for the contract
    newWindow = Tk()
    newWindow.title('Add contract')

    # create all text boxes
    Label(newWindow, text='Title: ').grid(row=0, column=0)
    title =  Entry(newWindow, width=35, borderwidth=5)
    title.grid(row=0, column=1, columnspan=3, padx=10, pady=10)

    Label(newWindow, text='Description: ').grid(row=1, column=0)
    description =  Entry(newWindow, width=35, borderwidth=5)
    description.grid(row=1, column=1, columnspan=3, padx=10, pady=10)

    Label(newWindow, text='Deadline: ').grid(row=2, column=0)
    deadline =  Entry(newWindow, width=35, borderwidth=5)
    deadline.grid(row=2, column=1, columnspan=3, padx=10, pady=10)

    Label(newWindow, text='Price: ').grid(row=3, column=0)
    price =  Entry(newWindow, width=35, borderwidth=5)
    price.grid(row=3, column=1, columnspan=3, padx=10, pady=10)

    Label(newWindow, text='Sender: ').grid(row=4, column=0)
    sender =  Entry(newWindow, width=35, borderwidth=5)
    sender.grid(row=4, column=1, columnspan=3, padx=10, pady=10)

    Label(newWindow, text='Recipient: ').grid(row=5, column=0)
    recipient =  Entry(newWindow, width=35, borderwidth=5)
    recipient.grid(row=5, column=1, columnspan=3, padx=10, pady=10)

    # create the add contract button
    Button(newWindow, text = "Create contract", command=add).grid(row=6, column=1)



## old code used for checking sytax of Tkinter 

# def update():

#     def up():
#         chain.update_contract(int(iden.get()), term.get(), update_value.get(), name.get())

#         newWindow.destroy()
#         print('update pending approval')

#     newWindow = Toplevel(root)
#     newWindow.title('Update terms')

#     Label(newWindow, text='Contract id: ').grid(row=0, column=0)
#     iden =  Entry(newWindow, width=35, borderwidth=5)
#     iden.grid(row=0, column=1, columnspan=3, padx=10, pady=10)

#     Label(newWindow, text='Term: ').grid(row=1, column=0)
#     term =  Entry(newWindow, width=35, borderwidth=5)
#     term.grid(row=1, column=1, columnspan=3, padx=10, pady=10)

#     Label(newWindow, text='New value: ').grid(row=2, column=0)
#     update_value =  Entry(newWindow, width=35, borderwidth=5)
#     update_value.grid(row=2, column=1, columnspan=3, padx=10, pady=10)

#     Label(newWindow, text='Name: ').grid(row=3, column=0)
#     name =  Entry(newWindow, width=35, borderwidth=5)
#     name.grid(row=3, column=1, columnspan=3, padx=10, pady=10)
    
#     Button(newWindow, text='Update', command=up).grid(row=4, column=0)


# def accept_update():
#     def accept_up():
#         c = comment.get()
#         ans = awnser.get()
#         if ans == 'False':
#             ans = False
#         else: ans = True

#         if c == '':
#             chain.accept_update(int(iden.get()), int(update_id.get()), ans, name.get())
#         else:
#             chain.accept_update(int(iden.get()), int(update_id.get()), ans, name.get(), c)

#         newWindow.destroy()


#     newWindow = Toplevel(root)
#     newWindow.title('Update terms')

#     Label(newWindow, text='Contract id: ').grid(row=0, column=0)
#     iden =  Entry(newWindow, width=35, borderwidth=5)
#     iden.grid(row=0, column=1, columnspan=3, padx=10, pady=10)

#     Label(newWindow, text='Update id: ').grid(row=1, column=0)
#     update_id =  Entry(newWindow, width=35, borderwidth=5)
#     update_id.grid(row=1, column=1, columnspan=3, padx=10, pady=10)

#     Label(newWindow, text='Awnser ').grid(row=2, column=0)
#     awnser =  Entry(newWindow, width=35, borderwidth=5)
#     awnser.grid(row=2, column=1, columnspan=3, padx=10, pady=10)

#     Label(newWindow, text='Name: ').grid(row=3, column=0)
#     name =  Entry(newWindow, width=35, borderwidth=5)
#     name.grid(row=3, column=1, columnspan=3, padx=10, pady=10)

#     Label(newWindow, text='Comment optional: ').grid(row=3, column=0)
#     comment =  Entry(newWindow, width=35, borderwidth=5)
#     comment.grid(row=3, column=1, columnspan=3, padx=10, pady=10)
    
#     Button(newWindow, text='Update', command=accept_up).grid(row=4, column=0)
    
# def view_updates():
#     status =accept_status.get()
#     if status == 'False':
#         status = False
#     else: status = True
#     iden = int(accept_id.get())
#     if status == None:
#         pprint.pprint(chain.retrieve_updates(iden))
#     else:
#         pprint.pprint(chain.retrieve_updates(iden, status))