// Copyright (c) 2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <addresstype.h>
#include <bench/bench.h>
#include <key.h>
#include <key_io.h>
#include <script/descriptor.h>
#include <script/script.h>
#include <script/signingprovider.h>
#include <sync.h>
#include <test/util/setup_common.h>
#include <wallet/context.h>
#include <wallet/db.h>
#include <wallet/test/util.h>
#include <wallet/wallet.h>
#include <wallet/walletutil.h>

#include <cassert>
#include <cstdint>
#include <memory>
#include <string>
#include <utility>

namespace wallet {
static void WalletIsMine(benchmark::Bench& bench, int num_combo = 0)
{
    const auto test_setup = MakeNoLogFileContext<TestingSetup>();

    WalletContext context;
    context.args = &test_setup->m_args;
    context.chain = test_setup->m_node.chain.get();

    // Setup the wallet
    // Loading the wallet will also create it
    uint64_t create_flags = WALLET_FLAG_DESCRIPTORS;
    auto database = CreateMockableWalletDatabase();
    auto wallet = TestLoadWallet(std::move(database), context, create_flags);

    // For a descriptor wallet, fill with num_combo combo descriptors with random keys
    // This benchmarks a non-HD wallet migrated to descriptors
    if (num_combo > 0) {
        LOCK(wallet->cs_wallet);
        for (int i = 0; i < num_combo; ++i) {
            CKey key;
            key.MakeNewKey(/*fCompressed=*/true);
            FlatSigningProvider keys;
            std::string error;
            std::vector<std::unique_ptr<Descriptor>> desc = Parse("combo(" + EncodeSecret(key) + ")", keys, error, /*require_checksum=*/false);
            WalletDescriptor w_desc(std::move(desc.at(0)), /*creation_time=*/0, /*range_start=*/0, /*range_end=*/0, /*next_index=*/0);
            Assert(wallet->AddWalletDescriptor(w_desc, keys, /*label=*/"", /*internal=*/false));
        }
    }

    const CScript script = GetScriptForDestination(DecodeDestination(ADDRESS_BCRT1_UNSPENDABLE));

    bench.run([&] {
        LOCK(wallet->cs_wallet);
        bool mine = wallet->IsMine(script);
        assert(!mine);
    });

    TestUnloadWallet(std::move(wallet));
}

static void WalletIsMineDescriptors(benchmark::Bench& bench) { WalletIsMine(bench); }
static void WalletIsMineMigratedDescriptors(benchmark::Bench& bench) { WalletIsMine(bench, /*num_combo=*/2000); }
BENCHMARK(WalletIsMineDescriptors, benchmark::PriorityLevel::LOW);
BENCHMARK(WalletIsMineMigratedDescriptors, benchmark::PriorityLevel::LOW);
} // namespace wallet
