import requests
from mychain import Blockchain
from mychain import MyChainTrans
import pandas as pd 
import json

main_chain='https://huggingface.co/datasets/Omnibus/chat-at/raw/main/chains/'
main_balance='https://huggingface.co/datasets/Omnibus/chat-at/raw/main/balance/'
main_trans='https://huggingface.co/datasets/Omnibus/chat-at/raw/main/transact/'

trans_name = 'trans1.json'
repo_d='Omnibus/static-bin'
chain_d='chain1.json'

def bc_transactions(block):
    #mes, out = issue_tokens(sender,recipient,amount)
    print (f'block:: {block}')
    try:
        blockchain.new_transaction(block)
        message = "Transaction Added to Pool"
        data = pd.DataFrame(blockchain.trans_data_out)
    except Exception as e:
        message = e
        data = None
    return data,message

def create_chain(create=None):
    global blockchain
    blockchain = Blockchain(chain_load=main_chain,create=create)
    #blockchain.reset(create=create)
    return "New Chain Created",None,display_chain()

def display_chain():
    response = {'chain': blockchain.chain,
                'length': len(blockchain.chain)}
    return response
    
def mine_block(chain_r=None,chain_n=None):
    if chain_n=="":
        chain_n = chain_d
    previous_block = blockchain.print_previous_block()
    previous_proof = previous_block['proof']
    proof = blockchain.proof_of_work(previous_proof)
    previous_hash = blockchain.hash(previous_block)
    block = blockchain.create_block(proof, previous_hash,chain_r,chain_n)

    response = {'message': 'A block is MINED',
                'index': block['index'],
                'timestamp': block['timestamp'],
                'proof': block['proof'],
                'previous_hash': block['previous_hash']}
    message = "A block is MINED"
    show_chain = display_chain()
    if len(blockchain.chain) > 1000:
        blockchain.reset()
        response = None
        show_chain=display_chain()
        message = "New Chain Created at Max 20 Blocks"
    #MyChainTrans.reset(create=chain_d)
    return response, show_chain,pd.DataFrame(blockchain.pending_transactions), message

def valid():
    valid,ind,mes = blockchain.chain_valid(blockchain.chain)
    if valid:
        response = 'The Blockchain is valid.'
        z=True
    else:
        response = f'Blockchain is not valid. {mes} at Index {ind}'
        z=False
    return response,z
    
def get_chain(repo_name=None,chain_name=None,token=None):
    if repo_name == "":
        repo_name = repo_d
    if chain_name=="":
        chain_name = chain_d
    try:
        r = requests.get(f'{main_chain}{chain_name}') 
        #create_chain(load=r.text)
        global blockchain
        blockchain = Blockchain(chain_load=main_chain,load=r.text)
        response = {'chain': blockchain.chain,
                    'length': len(blockchain.chain)}
        message = f"Blockchain loaded from: {main_chain}{chain_name}"
        return response,message
    except:
        message = f"Error loading from: {src}"
        return ["Error Loading Chain"],message
def checkp(inp):
    if inp == pa:
        return gr.update(visible=False), gr.update(visible=True)
    elif inp != pa:
        return gr.update(visible=True), gr.update(visible=False)
def add_node(this_space,repo,space,chain_file):
    #print(f"{api.whoami(['name'])}")
    #repo = f'omnibus/{space}'
    is_valid='True'
    r = requests.get(f'{main_nodes}') 
    try:
        lod = json.loads(r.text)
    except:
        lod=[]
        pass
    block = {'index': len(lod) + 1,
            'timestamp': str(datetime.datetime.now()),
            'url': f'https://huggingface.co/datasets/{repo}/{space}/raw/main/{chain_file}',
            'valid': f'{is_valid}'}
    lod.append(block)    
    
    json_object = json.dumps(lod, indent=4)
    with open("tmp1.json", "w") as outfile:
        outfile.write(json_object)
    try: 
        api.upload_file(
        path_or_fileobj="tmp1.json",
        path_in_repo=main_nodes.split('main/',1)[1],
        repo_id=main_nodes.split('datasets/',1)[1].split('/raw',1)[0],
        token=token_self,
        repo_type="dataset",
        )
        os.remove("tmp1.json")

    except Exception as e:
        pass         


 
#api = HfApi(token=token)
repo = main_balance.split('datasets/',1)[1].split('/raw',1)[0].split('/',1)[0]
name = main_balance.split('datasets/',1)[1].split('/raw',1)[0].split('/',1)[1]