#!/usr/bin/env python3

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"""Test get_output_distribution RPC
"""

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

class GetOutputDistributionTest():
    def run_test(self):
        self.reset()
        self.create()
        self.test_get_output_distribution()

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

    def create(self):
        self.wallet = Wallet()
        # close the wallet if any, will throw if none is loaded
        try: self.wallet.close_wallet()
        except: pass
        res = self.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 test_get_output_distribution(self):
        print("Test get_output_distribution")

        daemon = Daemon()

        res = daemon.get_output_distribution([0], 0, 0)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 0
        assert d.binary == False
        assert len(d.distribution) == 1
        assert d.distribution[0] == 0

        res = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 1)

        res = daemon.get_output_distribution([0], 0, 0)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 0
        assert d.binary == False
        assert len(d.distribution) == 2
        assert d.distribution[0] == 0
        assert d.distribution[1] == 1

        res = daemon.pop_blocks(1)

        res = daemon.get_output_distribution([0], 0, 0)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 0
        assert d.binary == False
        assert len(d.distribution) == 1
        assert d.distribution[0] == 0

        res = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 3)

        res = daemon.get_output_distribution([0], 0, 0, cumulative = True)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 0
        assert d.binary == False
        assert len(d.distribution) == 4
        assert d.distribution[0] == 0
        assert d.distribution[1] == 1
        assert d.distribution[2] == 2
        assert d.distribution[3] == 3

        # extend
        res = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 80)

        res = daemon.get_output_distribution([0], 0, 0, cumulative = True)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 0
        assert d.binary == False
        assert len(d.distribution) == 84
        for h in range(len(d.distribution)):
            assert d.distribution[h] == h

        # pop and replace, this will do through the "trim and extend" path
        res = daemon.pop_blocks(2)
        self.wallet.refresh()
        dst = {'address': '42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 'amount': 1000000000000}
        self.wallet.transfer([dst])
        res = daemon.generateblocks('42ey1afDFnn4886T7196doS9GPMzexD9gXpsZJDwVjeRVdFCSoHnv7KPbBeGpzJBzHRCAs9UxqeoyFQMYbqSWYTfJJQAWDm', 1)
        for step in range(3): # the second will be cached, the third will also be cached, but we get it in non-cumulative mode
            res = daemon.get_output_distribution([0], 0, 0, cumulative = step < 3)
            assert len(res.distributions) == 1
            d = res.distributions[0]
            assert d.amount == 0
            assert d.base == 0
            assert d.binary == False
            assert len(d.distribution) == 83
            for h in range(len(d.distribution)):
                assert d.distribution[h] == (h if step < 3 else 1) + (2 if h == len(d.distribution) - 1 else 0)

        # start at 0, end earlier
        res = daemon.get_output_distribution([0], 0, 40, cumulative = True)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 0
        assert d.binary == False
        assert len(d.distribution) == 41
        for h in range(len(d.distribution)):
            assert d.distribution[h] == h

        # start after 0, end earlier
        res = daemon.get_output_distribution([0], 10, 20, cumulative = True)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 9
        assert d.binary == False
        assert len(d.distribution) == 11
        for h in range(len(d.distribution)):
            assert d.distribution[h] == 10 + h

        # straddling up
        res = daemon.get_output_distribution([0], 15, 25, cumulative = True)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 14
        assert d.binary == False
        assert len(d.distribution) == 11
        for h in range(len(d.distribution)):
            assert d.distribution[h] == 15 + h

        # straddling down
        res = daemon.get_output_distribution([0], 8, 18, cumulative = True)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 7
        assert d.binary == False
        assert len(d.distribution) == 11
        for h in range(len(d.distribution)):
            assert d.distribution[h] == 8 + h

        # encompassing
        res = daemon.get_output_distribution([0], 5, 20, cumulative = True)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 4
        assert d.binary == False
        assert len(d.distribution) == 16
        for h in range(len(d.distribution)):
            assert d.distribution[h] == 5 + h

        # single
        res = daemon.get_output_distribution([0], 2, 2, cumulative = True)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 0
        assert d.base == 1
        assert d.binary == False
        assert len(d.distribution) == 1
        assert d.distribution[0] == 2

        # a non existent amount
        res = daemon.get_output_distribution([1], 0, 0)
        assert len(res.distributions) == 1
        d = res.distributions[0]
        assert d.amount == 1
        assert d.base == 0
        assert d.binary == False
        assert len(d.distribution) == 83
        for h in range(len(d.distribution)):
            assert d.distribution[h] == 0


class Guard:
    def __enter__(self):
        for i in range(4):
            Wallet(idx = i).auto_refresh(False)
    def __exit__(self, exc_type, exc_value, traceback):
        for i in range(4):
            Wallet(idx = i).auto_refresh(True)

if __name__ == '__main__':
    with Guard() as guard:
        GetOutputDistributionTest().run_test()
