import asyncio
import json
import os
import random
import shutil
import time
from contextlib import ExitStack

from nacl.signing import SigningKey

from plot import plot
from rainbowadn.chain import *
from rainbowadn.collection.linear import *
from rainbowadn.collection.trees.binary import *
from rainbowadn.core import *
from rainbowadn.nullability import *
from rainbowadn.testing.instrument import *
from rainbowadn.testing.resolvers import *
from rainbowadn.v13 import *


def get_dr() -> ExtendableResolver:
    dr = DictResolver()
    dr = DelayedResolver(dr, lambda: random.uniform(0.200, 0.500))
    # dr = CachingResolver(dr)
    return dr


def target_str(target) -> str:
    match target:
        case type(__name__=name):
            return name
        case object(__class__=type(__name__=name)):
            return name


def jsonify(dumped: Instrumentation) -> dict:
    prefix = f'{target_str(dumped.target)}:{dumped.methodname}'
    match dumped:
        case Counter(counter=ctr):
            return {f'{prefix}:counter': ctr}
        case Concurrency(log=log):
            return {f'{prefix}:concurrency': log}
        case EntryExit(entry_log=entry_log, exit_log=exit_log):
            return {
                f'{prefix}:entry': entry_log,
                f'{prefix}:exit': exit_log,
            }
        case _:
            return {}


async def mock(bank: BankChain) -> BankChain:
    key_0 = SigningKey.generate()
    transaction_0 = Transaction.make(
        [],
        [CoinData.of(Subject(key_0.verify_key), 100_000)],
        []
    )
    coin_0, coin_1 = await transaction_0.coins(MINT_CONST, NotNull(HashPoint.of(Subject(key_0.verify_key))))
    bank = await bank.adds(
        [
            transaction_0,
            Transaction.make(
                [coin_1],
                [CoinData.of(Subject(SigningKey.generate().verify_key), 10_000)],
                [key_0]
            ),
        ]
    )
    return bank


def get_instrumentations() -> list[Instrumentation]:
    sleep_cc = Concurrency(DelayedResolver, 'sleep')
    return [
        sleep_cc,
        EntryExit(ActiveBinaryTree, 'add', sleep_cc.point),
        Concurrency(ActiveBinaryTree, 'add'),
        Concurrency(ActiveBinaryTree, 'contains'),
        Concurrency(Stack, 'list'),
    ]


async def _generate(
        blocks: int,
        subjects_min: int,
        subjects_max: int,
        transactions_min: int,
        transactions_max: int,
) -> BankChain:
    bank: BankChain = BankChain.empty(ReductionChainMetaFactory().loose())
    # bank = await mock(bank)
    for _ in range(blocks):
        bank = await bank.adds(
            [
                Transaction.make(
                    [],
                    [CoinData.of(Subject(SigningKey.generate().verify_key), 0)] * random.randint(
                        subjects_min,
                        subjects_max
                    ),
                    []
                )
                for
                _
                in
                range(
                    random.randint(
                        transactions_min,
                        transactions_max
                    )
                )
            ]
        )
    print('generated')
    return bank


async def _migrate(bank: BankChain) -> BankChain:
    assert_true(await bank.verify())
    bank = BankChain.from_reference(
        ReductionChainMetaFactory(), await get_dr().migrate_resolved(bank.reference)
    )
    print('migrated')
    return bank


async def _instrument(bank: BankChain) -> list[Instrumentation]:
    with ExitStack() as estack:
        instrumentations: list[Instrumentation] = get_instrumentations()
        for stacked in instrumentations:
            stacked.enter(estack)
        assert_true(await bank.verify())
    print('deinstrumentation (should be empty):', Instrumentation.deinstrumentation)
    print('instrumented')
    return instrumentations


class DeintrumentationSize(Instrumentation):
    def instrument(self, method, *args, **kwargs):
        print('deinstrumentation size', len(self.deinstrumentation))
        return method(*args, **kwargs)


async def _trace():
    set_gather_linear()
    bank = await _generate(
        16,
        8, 15,
        8, 15,
    )
    bank = await _migrate(bank)
    set_gather_asyncio()
    instrumentations = await _instrument(bank)
    print('traced')
    return instrumentations


def _fn() -> str:
    return f'trace/{int(time.time())}-{os.urandom(2).hex()}.json'


def _jsonify(instrumentations: list[Instrumentation]) -> dict:
    jsonified = {}
    for dumped in instrumentations:
        jsonified |= jsonify(dumped)
    return jsonified


def _dump(fn: str, jsonified: dict) -> None:
    with open(fn, 'w') as file:
        json.dump(
            jsonified,
            file
        )
    print('dumped')


def _copy(fn: str) -> None:
    shutil.copy(fn, f'trace/latest.json')
    print('copied')


async def main():
    instrumentations = await _trace()
    fn = _fn()
    jsonified = _jsonify(instrumentations)
    _dump(fn, jsonified)
    _copy(fn)
    plot(fn)
    print('plotted')


if __name__ == '__main__':
    asyncio.run(main())