import json
import random
import re
import string
import time
import ply.lex as lex
import ply.yacc as yacc
import enum
import uuid
import os
import logging
import sys
import select
from multiprocessing import Process
from multiprocessing import Pipe
import subprocess
import requests
import requests.adapters
from web3 import Web3
from dotenv import load_dotenv

logg = logging.getLogger()
logg.setLevel(logging.DEBUG)


tokens = (
    "ID",
    "NOID",
    "HEX",
    "LABEL",
    "VALUE",
    "END",
)

t_ID = r"[a-zA-Z0-9]+(-[a-zA-Z0-9]+)+"
t_NOID = r"\-"
t_LABEL = r"[a-zA-Z_]+"
t_VALUE = r"\d+"
t_END = r"\n"
t_HEX = r"0x([a-fA-F0-9])+"

# def t_VALUE(t):
#    r'\d+'
#    t.value = int(t.value)

# def t_HEX(t):
#    r'0x([a-fA-F0-9])+'
# print(t)
# try:
#    t.value = bytes.fromhex(t.value)
# except:
#    return False
# return t.value
# t.value = t.value
#    pass

t_ignore = " \t"


def t_error(t):
    print("problem: ", t.value[0])
    t.lexer.skip(1)


lexer = lex.lex()


load_dotenv()

# Chain Params
chainId = os.getenv("CHAIN_ID", "44787")
rpc = os.getenv("RPC", "https://alfajores-forno.celo-testnet.org/")
gas_cap = os.getenv("GAS_FEE_CAP", "35000000000")


master_private_key = os.getenv("MASTER_PRIVATE_KEY")
token_index = os.getenv("TOKEN_INDEX", "0xD774bc082003eaF8DF74eEcD43AD44F03D488418")
gas_topup = os.getenv("GAS_TOPUP", "0.01ether")

bearer_token = os.getenv("BEARER_TOKEN")

w3 = Web3(Web3.HTTPProvider(rpc))


#
# data = '''
# FOOBAR uf-2etg 0xa3bdefa momo 123
#
# BARBAR
# BAZ
#
# BASFB foo-bar-baz
#'''
#
# lexer.input(data)
#
# while True:
#    tok = lexer.token()
#    if not tok:
#        break
#    print(tok)


class VoucherTransfer:
    def __init__(
        self,
        to_address=None,
        from_address=None,
        amount=None,
        token_address=None,
        decimals=None,
    ):
        self.to_address = to_address
        self.from_address = from_address
        self.decimals = decimals
        self.amount = amount
        self.token_address = token_address


class VoucherDetail:
    def __init__(self, name=None, symbol=None, decimals=None, owner=None, address=None):
        self.name = name
        self.owner = owner
        self.address = address
        self.symbol = symbol
        self.decimals = decimals


class CmdId(enum.IntEnum):
    KEY_CREATE = 0x1
    VOUCHER_CREATE = 0x10
    VOUCHER_MINT = 0x11
    VOUCHER_TRANSFER = 0x12
    WAIT = 0x20
    NEED = 0x21
    PEEK = 0x80


class Agent:
    def __str__(self):
        return (
            self.__class__.__name__ + ":"
        )  # {}'.format(self.__class__.__name__, self.v)


class AddressAgent(Agent):
    def __init__(self, v):
        self.v = bytes.fromhex(v[2:])

    def __str__(self):
        return Agent.__str__(self) + self.v.hex()


class NameAgent(Agent):
    def __init__(self, v):
        self.v = v

    def __str__(self):
        return Agent.__str__(self) + self.v


class Cmd:
    def __init__(self, cmd):
        self.c = CmdId[cmd]
        self.i = None
        self.a = None
        self.f = None
        self.t = None
        self.v = 0
        self.k = None
        self.d = 0
        self.p = 0
        self.s = None
        self.n = None

    def __str__(self):
        return "[{:02d}]{} i={} v={} a={} f={} t={} k={} d={} p={} s={} n={}".format(
            self.c,
            self.c.name,
            self.i,
            self.v,
            self.a,
            self.f,
            self.t,
            self.k,
            self.d,
            self.p,
            self.s,
            self.n,
        )


def to_store(v):
    return str(v)


def to_agent(v):
    r = None
    try:
        r = AddressAgent(v)
    except ValueError:
        r = NameAgent(v)
    return r


def p_cmd(p):
    """cmd : key_create
    | voucher_mint
    | voucher_transfer
    | voucher_create
    | pair
    """
    p[0] = p[1]


def p_key_create(p):
    """key_create : change_label LABEL LABEL
    | change_label LABEL LABEL HEX
    """
    o = p[1]
    o.f = NameAgent(p[2])
    o.t = to_store(p[3])
    if len(p) > 4:
        o.k = p[4]
    p[0] = o


def p_voucher_mint(p):
    """voucher_mint : change_label hv
    | change_label nv
    """
    o = p[1]
    if o.c.value & 0x10 == 0:
        raise ValueError("not a voucher command")
    o.v = int(p[2][1])
    o.a = to_agent(p[2][0])
    p[0] = o


def p_voucher_create(p):
    """voucher_create : change_label LABEL LABEL VALUE
    | change_label LABEL LABEL VALUE VALUE VALUE
    """
    o = p[1]
    if o.c.value & 0x10 == 0:
        raise ValueError("not a voucher command")
    o.s = p[2]
    o.n = p[3]
    o.v = int(p[4])
    if len(p) > 5:
        o.d = p[5]
        o.p = p[6]
    p[0] = o


def p_voucher_mint_recipient(p):
    """voucher_mint : change_label hv HEX
    | change_label nv HEX
    | change_label hv LABEL
    | change_label nv LABEL
    """
    o = p[1]
    if o.c.value & 0x10 == 0:
        raise ValueError("not a voucher command")
    o.v = int(p[2][1])
    o.a = to_agent(p[2][0])
    o.t = to_agent(p[3])
    p[0] = o


def p_voucher_transfer(p):
    """voucher_transfer : change_label hv HEX HEX
    | change_label nv HEX HEX
    | change_label hv LABEL HEX
    | change_label nv LABEL HEX
    | change_label hv LABEL LABEL
    | change_label nv LABEL LABEL
    | change_label hv HEX LABEL
    | change_label nv HEX LABEL
    """
    o = p[1]
    if o.c.value & 0x10 == 0:
        raise ValueError("not a voucher command")
    o.v = int(p[2][1])
    o.a = to_agent(p[2][0])
    o.t = to_agent(p[3])
    o.f = to_agent(p[4])
    p[0] = o


def p_nv(p):
    "nv : LABEL VALUE"
    p[0] = (
        p[1],
        p[2],
    )


def p_hv(p):
    "hv : HEX VALUE"
    p[0] = (
        p[1],
        p[2],
    )


def p_change_label(p):
    """change_label : pair
    | pairnoid
    """
    p[0] = p[1]


def p_pair(p):
    "pair : LABEL ID"
    o = Cmd(p[1])
    o.i = p[2]
    p[0] = o


def p_pairnoid(p):
    "pairnoid : LABEL NOID"
    o = Cmd(p[1])
    o.i = str(uuid.uuid4())
    p[0] = o


class Router:
    def __init__(self):
        self.__routes = {}
        self.__r = {}

    def register(self, cmd_id, fn):
        self.__routes[cmd_id] = fn

    def sync(self, uid):
        o = self.__r[uid]
        if o[1] == None:
            return None
        r = o[1][0].recv()
        o = (
            o[0],
            None,
        )
        o[0].join()
        return r

    def __wrap(self, uid, fn, cmd):
        r = fn(cmd)
        self.__r[uid][1][1].send(r)

    def exec(self, cmd):
        logg.debug("router exec {}".format(cmd))
        if cmd.c & 0xA0 > 0:
            return self.sync(cmd.i)
        fn = self.__routes[cmd.c]
        pi = Pipe(False)
        po = Process(
            target=self.__wrap,
            args=(
                cmd.i,
                fn,
                cmd,
            ),
        )
        self.__r[cmd.i] = (
            po,
            pi,
        )
        po.start()
        po.join()

    def finish(self):
        print("syncing")
        for k, v in self.__r.items():
            print("syncing key " + k)
            r = self.sync(k)
            logg.debug("synced " + k + ": " + r)
            print("synced " + k + ": " + r)

    def __del__(self):
        self.finish()


def noop_handler(cmd):
    return str(cmd)


def printMessage(message):
    box_width = len(message) + 4
    print("+" + "-" * (box_width - 2) + "+")
    print("| " + message + " |")
    print("+" + "-" * (box_width - 2) + "+")


def find_custodial_address(key_name):
    directory = "custodialstore"
    filename = f"{key_name}.json"
    file_path = os.path.join(directory, filename)

    # Check if the file exists with the keyname
    if os.path.isfile(file_path):
        with open(file_path, "r") as f:
            custodial_account = json.load(f)
        return custodial_account["address"]
    else:
        return None


def remove_ansi_escape_codes(text):
    return re.sub(r"\u001b\[.*?m", "", text)


def generate_private_key():
    """Generate a new private key."""
    web3 = Web3()
    account = web3.eth.account.create()
    return account.address, w3.to_hex(account.key)


def store_key_in_keystore(keystore_dir, private_key, key_name, address):
    # Create the directory if it doesn't exist
    if not os.path.exists(keystore_dir):
        os.makedirs(keystore_dir)

    keystore = {
        "key_name": key_name,
        "private_key": private_key,
        "address": address,
    }

    store_path = os.path.join(keystore_dir, f"{key_name}.json")

    # Save to JSON file (simulated keystore)
    with open(store_path, "w") as f:
        json.dump(keystore, f)

    return store_path


def load_gas(address, nonce):
    command = (
        f"cast send {address} "
        f"--value  {gas_topup} "
        f"--nonce  {nonce} "
        f"--private-key {master_private_key} "
        f"--rpc-url {rpc} "
        f" --json "
    )
    result = subprocess.run(command, shell=True, capture_output=True, text=True)
    if result.returncode != 0:
        raise subprocess.CalledProcessError(
            result.returncode, command, output=result.stdout, stderr=result.stderr
        )

    message = f"Added {gas_topup} to {address}"
    printMessage(message)


def create_custodialaccount():
    # create custodial account endpoint
    url = "http://localhost:5003/api/v2/account/create"

    headers = {
        "Authorization": f"Bearer {bearer_token}",
        "Content-Type": "application/json",
    }

    try:
        response = requests.post(url, headers=headers)

        # Check if the request was successful (status code 200)
        if response.status_code == 200:
            account = response.json()
            public_key = account["result"]["publicKey"]
            return public_key
        else:
            return None
    except requests.exceptions.RequestException as e:
        print("Error:", e)
        return None


def do_custodial_token_transfer(transfer):
    # token transfer custodial endpoint
    url = "http://localhost:5003/api/v2/token/transfer"

    headers = {
        "Authorization": f"Bearer {bearer_token}",
        "Content-Type": "application/json",
    }

    data = {
        "from": transfer.from_address,
        "to": transfer.to_address,
        "amount": str(transfer.amount),
        "tokenAddress": transfer.token_address,
    }
    json_data = json.dumps(data)

    try:
        response = requests.post(url=url, headers=headers, data=json_data)
        # Check if the request was successful (status code 200)
        if response.status_code == 200:
            transfer = response.json()
            return transfer["result"]["trackingId"]
        else:
            return None
    except requests.exceptions.RequestException as e:
        print("Error:", e)
        return None


def store_voucher(voucher_detail):
    vouchers = []
    voucher = {
        "voucher_address": voucher_detail.address,
        "owner": voucher_detail.owner,
        "symbol": voucher_detail.symbol,
        "decimals": voucher_detail.decimals,
    }
    vouchers.append(voucher)
    try:
        with open("vouchers.json", "r") as f:
            existing_vouchers = json.load(f)
    except FileNotFoundError:
        existing_vouchers = []

    for entry in existing_vouchers:
        vouchers.append(entry)

    with open("vouchers.json", "w") as f:
        json.dump(vouchers, f)


def key_create_handler(cmd):
    key_name = str(cmd.f).split(":")[1]
    store_name = cmd.t

    keystore_dir = "user_store"
    master_address = w3.eth.account.from_key(master_private_key)
    nonce = w3.eth.get_transaction_count(master_address.address, "pending")

    if cmd.k is None:
        address, private_key = generate_private_key()
    else:
        if cmd.k.startswith("0x"):
            private_key = cmd.k[2:]
        else:
            private_key = cmd.k
        address = w3.eth.account.from_key(private_key).address

    if store_name == "custodialstore":
        address = create_custodialaccount()
        if address is None:
            raise ValueError("account address cannot be None")
        private_key = None
        keystore_dir = "custodialstore"

    load_gas(address, nonce)

    store_key_in_keystore(keystore_dir, private_key, key_name, address)
    return address


def voucher_create_handler(cmd):
    symbol = cmd.s

    if cmd.n is None or cmd.s is None or cmd.v is None:
        raise ValueError("cmd.n, cmd.s, and cmd.v must not be None")

    voucher_detail = VoucherDetail()

    voucher_detail.name = cmd.n
    voucher_detail.decimals = cmd.v

    random_ascii = "".join(random.choices(string.ascii_letters, k=4)).upper()
    try:
        with open("vouchers.json", "r") as f:
            existing_vouchers = json.load(f)
    except FileNotFoundError:
        existing_vouchers = []

    voucher_symbols = list(map(lambda symbol: symbol["symbol"], existing_vouchers))

    if symbol in voucher_symbols:
        symbol = symbol + random_ascii

    voucher_detail.symbol = symbol

    if master_private_key.startswith("0x"):
        private_key = master_private_key[2:]
    else:
        private_key = master_private_key

    voucher_detail.owner = private_key

    # Command to create a voucher
    publish_token = (
        f"ge-publish --private-key {voucher_detail.owner}  --json "
        f"--rpc {rpc} --gas-fee-cap {gas_cap} --chainid {chainId} "
        f'p erc20 --name "{voucher_detail.name}" --symbol "{voucher_detail.symbol}"'
    )

    result = subprocess.run(publish_token, shell=True, capture_output=True, text=True)
    if result.returncode != 0:
        raise subprocess.CalledProcessError(
            result.returncode, publish_token, output=result.stdout, stderr=result.stderr
        )

    output_lines = result.stderr.strip().split("\n")
    deployment_result = output_lines[1]

    try:
        data = json.loads(deployment_result)
        contract_address = data.get("contract_address", None)
        voucher_detail.address = contract_address
    except json.JSONDecodeError as e:
        print("Error parsing JSON:", e)

    store_voucher(voucher_detail)

    # sleep for 5 second to allow chain to sync
    time.sleep(5)

    master_address = w3.eth.account.from_key(master_private_key)
    nonce = w3.eth.get_transaction_count(master_address.address, "pending")

    # Command to add the token to the token index
    add_token_to_index = (
        f"cast send --private-key {master_private_key} "
        f"--nonce {nonce} "
        f"--rpc-url {rpc} "
        f"{token_index} "
        f'"add(address)" {contract_address} '
        f" --json "
    )

    result2 = subprocess.run(
        add_token_to_index, shell=True, capture_output=True, text=True
    )
    if result2.returncode != 0:
        raise subprocess.CalledProcessError(
            result2.returncode,
            add_token_to_index,
            output=result2.stdout,
            stderr=result2.stderr,
        )

    message = f"Voucher {voucher_detail.name} created with address {contract_address} and symbol {symbol} and added to token index: {token_index}"
    printMessage(message)

    return contract_address


def voucher_transfer_handler(cmd):
    voucher_transfer = VoucherTransfer()

    # Amount to transfer
    value = cmd.v  # Amount to transfer
    is_custodial_address = False

    voucher_transfer.amount = value

    # Token symbol to transfer
    if str(cmd.a).startswith("NameAgent"):
        voucher_name = str(cmd.a).split(":")[1]
        with open("vouchers.json", "r") as file:
            data = json.load(file)

        voucher_symbols = list(map(lambda symbol: symbol["symbol"], data))
        voucher_address = list(map(lambda address: address["voucher_address"], data))
        voucher_decimal = list(map(lambda decimal: decimal["decimals"], data))

        if voucher_name in voucher_symbols:
            index = voucher_symbols.index(voucher_name)
            voucher_transfer.token_address = voucher_address[index]
            voucher_transfer.decimals = voucher_decimal[index]

    elif str(cmd.a).startswith("AddressAgent"):
        voucher_transfer.token_address = "0x" + str(cmd.a).split(":")[1]
    else:
        raise ValueError(
            f"Invalid command: {cmd.t}. Expected 'NameAgent' or 'AddressAgent'."
        )

    if str(cmd.t).startswith("NameAgent"):
        key_name = str(cmd.t).split(":")[1]

        custodial_address = find_custodial_address(key_name)
        if custodial_address is not None:
            to = custodial_address
            voucher_transfer.to_address = to
        else:
            store_path = os.path.join("user_store", f"{key_name}.json")
            with open(store_path, "r") as file:
                data = json.load(file)
            acct = w3.eth.account.from_key(data["private_key"])
            to = acct.address
            voucher_transfer.to_address = to
    elif str(cmd.t).startswith("AddressAgent"):
        to = "0x" + str(cmd.t).split(":")[1]
        voucher_transfer.to_address = to
    else:
        raise ValueError(
            f"Invalid command: {cmd.t}. Expected 'NameAgent' or 'AddressAgent'."
        )

    if str(cmd.f).startswith("NameAgent"):
        key_name = str(cmd.f).split(":")[1]
        custodial_address = find_custodial_address(key_name)
        if custodial_address is not None:
            is_custodial_address = True
            voucher_transfer.from_address = custodial_address
        else:
            store_path = os.path.join("user_store", f"{key_name}.json")
            with open(store_path, "r") as file:
                data = json.load(file)
            from_private_key = data["private_key"]

    elif str(cmd.f).startswith("AddressAgent"):
        from_private_key = "0x" + str(cmd.f).split(":")[1]
    else:
        raise ValueError(
            f"Invalid command: {cmd.t}. Expected 'NameAgent' or 'AddressAgent'."
        )

    amount_transfered = value / pow(10, voucher_transfer.decimals)

    if is_custodial_address:
        tracking_id = do_custodial_token_transfer(voucher_transfer)
        if tracking_id is not None:
            message = f"Transfered {amount_transfered} {voucher_name}  to {to} "
            printMessage(message)
            return tracking_id
    else:
        command = (
            f"cast send --private-key {from_private_key} "
            f"--rpc-url {rpc} "
            f"{voucher_transfer.token_address} "
            f'"transfer(address,uint256)" {to} {value}'
            f" --json "
        )
        result = subprocess.run(command, shell=True, capture_output=True, text=True)
        if result.returncode != 0:
            raise subprocess.CalledProcessError(
                result.returncode, command, output=result.stdout, stderr=result.stderr
            )
        if result.stderr:
            raise ValueError(f"Command failed with error: {result.stderr}")
        data = json.loads(result.stdout)
        message = f"Transfered {amount_transfered} {voucher_name}  to {to} "
        printMessage(message)
        return data["transactionHash"]


def voucher_mint_handler(cmd):
    value = cmd.v
    master_address = w3.eth.account.from_key(master_private_key)
    nonce = w3.eth.get_transaction_count(master_address.address, "pending")
    if str(cmd.t).startswith("NameAgent"):
        key_name = str(cmd.t).split(":")[1]
        custodial_address = find_custodial_address(key_name)
        if custodial_address is not None:
            to = custodial_address
        else:
            store_path = os.path.join("user_store", f"{key_name}.json")
            with open(store_path, "r") as file:
                data = json.load(file)
            acct = w3.eth.account.from_key(data["private_key"])
            to = acct.address
    elif str(cmd.t).startswith("AddressAgent"):
        to = "0x" + str(cmd.t).split(":")[1]
    else:
        raise ValueError(
            f"Invalid command: {cmd.t}. Expected 'NameAgent' or 'AddressAgent'."
        )

    if str(cmd.a).startswith("NameAgent"):
        voucher_symbol = str(cmd.a).split(":")[1]
        with open("vouchers.json", "r") as file:
            data = json.load(file)

        voucher_symbols = list(map(lambda symbol: symbol["symbol"], data))
        voucher_address = list(map(lambda address: address["voucher_address"], data))
        voucher_owners = list(map(lambda address: address["owner"], data))

        if voucher_symbol in voucher_symbols:
            index = voucher_symbols.index(voucher_symbol)
            s = voucher_address[index]
            privatekey = voucher_owners[index]
        else:
            raise ValueError(f"Voucher with symbol {voucher_symbol} was not found")

    elif str(cmd.a).startswith("AddressAgent"):
        s = "0x" + str(cmd.a).split(":")[1]
    else:
        raise ValueError(
            f"Invalid command: {cmd.t}. Expected 'NameAgent' or 'AddressAgent'."
        )

    command = (
        f"cast send --private-key  {privatekey} "
        f"--rpc-url {rpc} "
        f"--nonce {nonce} "
        f" {s} "
        f'"mintTo(address,uint256)" {to} {value}'
        f" --json "
    )
    result = subprocess.run(command, shell=True, capture_output=True, text=True)
    if result.returncode != 0:
        raise subprocess.CalledProcessError(
            result.returncode, command, output=result.stdout, stderr=result.stderr
        )
    if result.stderr:
        raise ValueError(f"Command failed with error: {result.stderr}")
    data = json.loads(result.stdout)

    mint_amount = value / 10**6
    message = f"Minted {mint_amount} {voucher_symbol} to :{to}"

    printMessage(message)
    return data["transactionHash"]


parser = yacc.yacc()

running = True


class FileGet:
    def __init__(self, o, fp):
        self.__running = True
        self.__o = o
        self.__f = open(fp, "r")

    def run(self):
        while self.__running:
            v = ifc.get()
            if v == None:
                break
            v = v.strip("\n")
            if len(v) == 0:
                break
            r = parser.parse(v)
            self.__o.exec(r)

    def get(self):
        return self.__f.readline()


class WaitGet:
    def __init__(self, o, *r):
        self.__running = True
        self.__o = o
        self.__f = r

    # TODO: router copy results in missing keys to sync when closing down
    def __process(self, f):
        while self.__running:
            r = select.select([f], [], [])
            v = r[0][0].recv()
            if v == None:
                break
            v = v.strip("\n")
            if len(v) == 0:
                break
            r = parser.parse(v)
            self.__o.exec(r)

    def run(self):
        (
            fo,
            fi,
        ) = Pipe()
        p = Process(target=self.__process, args=(fo,))
        p.start()
        while self.__running:
            v = input("> ")
            if v == "":
                fi.send(None)
                break
            fi.send(v)
        p.join()
        logg.debug("waitget run end")


if __name__ == "__main__":
    ifc = None
    o = Router()
    o.register(CmdId.KEY_CREATE, key_create_handler)
    o.register(CmdId.VOUCHER_CREATE, voucher_create_handler)
    o.register(CmdId.VOUCHER_MINT, voucher_mint_handler)
    o.register(CmdId.VOUCHER_TRANSFER, voucher_transfer_handler)

    if len(sys.argv) > 1:
        ifc = FileGet(o, sys.argv[1])
    else:
        ifc = WaitGet(o, sys.stdin)

    ifc.run()
    o.finish()