#!/usr/bin/env python3

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from __future__ import print_function
import time

"""Test daemon mining RPC calls

Test the following RPCs:
    - start_mining
    - stop_mining
    - mining_status
"""

from framework.daemon import Daemon
from framework.wallet import Wallet

class MiningTest():
    def run_test(self):
        self.reset()
        self.create()
        self.mine(True)
        self.mine(False)
        self.submitblock()

    def reset(self):
        print('Resetting blockchain')
        daemon = Daemon()
        res = daemon.get_height()
        daemon.pop_blocks(res.height - 1)
        daemon.flush_txpool()

    def create(self):
        print('Creating wallet')
        wallet = Wallet()
        # close the wallet if any, will throw if none is loaded
        try: wallet.close_wallet()
        except: pass
        res = wallet.restore_deterministic_wallet(seed = 'velvet lymph giddy number token physics poetry unquoted nibs useful sabotage limits benches lifestyle eden nitrogen anvil fewest avoid batch vials washing fences goat unquoted')

    def mine(self, via_daemon):
        print("Test mining via " + ("daemon" if via_daemon else "wallet"))

        daemon = Daemon()
        wallet = Wallet()

        # check info/height/balance before generating blocks
        res_info = daemon.get_info()
        prev_height = res_info.height
        res_getbalance = wallet.get_balance()
        prev_balance = res_getbalance.balance

        res_status = daemon.mining_status()

        if via_daemon:
            res = daemon.start_mining('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', threads_count = 1)
        else:
            res = wallet.start_mining(threads_count = 1)

        res_status = daemon.mining_status()
        assert res_status.active == True
        assert res_status.threads_count == 1
        assert res_status.address == '42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm'
        assert res_status.is_background_mining_enabled == False
        assert res_status.block_reward >= 600000000000

        # wait till we mined a few of them
        timeout = 60 # randomx is slow to init
        timeout_height = prev_height
        while True:
            time.sleep(1)
            res_info = daemon.get_info()
            height = res_info.height
            if height >= prev_height + 5:
                break
            if height > timeout_height:
              timeout = 5
              timeout_height = height
            else:
              timeout -= 1
            assert timeout >= 0

        if via_daemon:
            res = daemon.stop_mining()
        else:
            res = wallet.stop_mining()

        res_status = daemon.mining_status()
        assert res_status.active == False

        res_info = daemon.get_info()
        new_height = res_info.height

        wallet.refresh()
        res_getbalance = wallet.get_balance()
        balance = res_getbalance.balance
        assert balance >= prev_balance + (new_height - prev_height) * 600000000000

        if via_daemon:
            res = daemon.start_mining('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', threads_count = 1, do_background_mining = True)
        else:
            res = wallet.start_mining(threads_count = 1, do_background_mining = True)
        res_status = daemon.mining_status()
        assert res_status.active == True
        assert res_status.threads_count == 1
        assert res_status.address == '42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm'
        assert res_status.is_background_mining_enabled == True
        assert res_status.block_reward >= 600000000000

        # don't wait, might be a while if the machine is busy, which it probably is
        if via_daemon:
            res = daemon.stop_mining()
        else:
            res = wallet.stop_mining()
        res_status = daemon.mining_status()
        assert res_status.active == False

    def submitblock(self):
        print("Test submitblock")

        daemon = Daemon()
        res = daemon.get_height()
        height = res.height
        res = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 5)
        assert len(res.blocks) == 5
        hashes = res.blocks
        blocks = []
        for block_hash in hashes:
            res = daemon.getblock(hash = block_hash)
            assert len(res.blob) > 0 and len(res.blob) % 2 == 0
            blocks.append(res.blob)
        res = daemon.get_height()
        assert res.height == height + 5
        res = daemon.pop_blocks(5)
        res = daemon.get_height()
        assert res.height == height
        for i in range(len(hashes)):
            block_hash = hashes[i]
            assert len(block_hash) == 64
            res = daemon.submitblock(blocks[i])
            res = daemon.get_height()
            assert res.height == height + i + 1
            assert res.hash == block_hash


if __name__ == '__main__':
    MiningTest().run_test()