/*
* Copyright 2021 The casbin Authors. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This is a test file for benchmarking the performance of casbin::Model
*/

#include <benchmark/benchmark.h>
#include <casbin/casbin.h>
#include "config_path.h"

static const std::vector<std::vector<std::string>> s_policy = { {"alice", "data1", "read"}, {"bob", "data2", "write"} };

static bool rawEnforce(const std::string& sub, const std::string& obj, const std::string& act) {
    for(const auto& rule : s_policy) {
        if(rule[0] == sub && rule[1] == obj && rule[2] == act)
            return true;
    }
    return false;
}

static void BenchmarkRaw(benchmark::State& state) {
    for(auto _ : state)
        rawEnforce("alice", "data1", "read");
}

BENCHMARK(BenchmarkRaw);

static void BenchmarkBasicModel(benchmark::State& state) {
    casbin::Enforcer e(basic_model_path, basic_policy_path);
    casbin::DataList params = {"alice", "data1", "read"};

    for(auto _ : state)
        e.Enforce(params);
}

BENCHMARK(BenchmarkBasicModel);

static void BenchmarkRBACModel(benchmark::State& state) {
    casbin::Enforcer e(rbac_model_path, rbac_policy_path);

    casbin::DataList params = {"alice", "data2", "read"};

    for (auto _ : state)
        e.Enforce(params);
}

BENCHMARK(BenchmarkRBACModel);

static void BenchmarkRBACModelSmall(benchmark::State& state) {
    casbin::Enforcer e(rbac_model_path);

    // 100 roles, 10 resources.
    for(int i = 0; i < 100; ++i)
        e.AddPolicy({ "group" + std::to_string(i), "data" + std::to_string(i/10), "read" });

    // 1000 users.
    for(int i = 0; i < 1000; ++i)
        e.AddGroupingPolicy({ "user" + std::to_string(i), "group" + std::to_string(i / 10) });

    casbin::DataList params = {"user501", "data9", "read"};
    for (auto _ : state)
        e.Enforce(params);
}

BENCHMARK(BenchmarkRBACModelSmall);

static void BenchmarkRBACModelMedium(benchmark::State& state) {
    casbin::Enforcer e(rbac_model_path);

    // 1000 roles, 100 resources.
    for (int i = 0; i < 1000; ++i)
        e.AddPolicy({"group" + std::to_string(i), "data" + std::to_string(i / 10), "read"});

    // 10000 users.
    for (int i = 0; i < 10000; ++i)
        e.AddGroupingPolicy({"user" + std::to_string(i), "group" + std::to_string(i / 10)});

    casbin::DataList params = {"user5001", "data99", "read"};
    for (auto _ : state)
        e.Enforce(params);
}

BENCHMARK(BenchmarkRBACModelMedium);

static void BenchmarkRBACModelLarge(benchmark::State& state) {
    casbin::Enforcer e(rbac_model_path);

    // 10000 roles, 1000 resources.
    for(int i = 0; i < 10000; ++i)
        e.AddPolicy({"group" + std::to_string(i), "data" + std::to_string(i / 10), "read"});

    // 100000 users.
    for(int i = 0; i < 100000; i++)
        e.AddGroupingPolicy({"user" + std::to_string(i), "group" + std::to_string(i / 10)});

    casbin::DataList params = {"user50001", "data999", "read"};

    for(auto _ : state)
        e.Enforce(params);
}

// BENCHMARK(BenchmarkRBACModelLarge);

static void BenchmarkRBACModelWithResourceRoles(benchmark::State& state) {
    casbin::Enforcer e(rbac_with_resource_roles_model_path, rbac_with_resource_roles_policy_path);
    casbin::DataList params = {"alice", "data1", "read"};
    for (auto _ : state)
        e.Enforce(params);
}

// BENCHMARK(BenchmarkRBACModelWithResourceRoles);

static void BenchmarkRBACModelWithDomains(benchmark::State& state) {
    casbin::Enforcer e(rbac_with_domains_model_path, rbac_with_domains_policy_path);
    casbin::DataList params = {"alice", "domain1", "data1", "read"};

    for(auto _ : state)
        e.Enforce(params);
}

BENCHMARK(BenchmarkRBACModelWithDomains);

// ------ TODO ------
// static void BenchmarkABACModel(benchmark::State& state) {
//     casbin::Enforcer e("examples/abac_model.conf")
//     data1 := newTestResource("data1", "alice")

    
//     for(auto _ : state) {
//         _, _ = e.Enforce("alice", data1, "read")
//     }
// }

static void BenchmarkKeyMatchModel(benchmark::State& state) {
    casbin::Enforcer e(keymatch_model_path, keymatch_policy_path);
    casbin::DataList params = {"alice", "/alice_data/resource1", "GET"};

    for (auto _ : state)
        e.Enforce(params);
}

BENCHMARK(BenchmarkKeyMatchModel);

static void BenchmarkRBACModelWithDeny(benchmark::State& state) {
    casbin::Enforcer e(rbac_with_deny_model_path, rbac_with_deny_policy_path);
    casbin::DataList params = {"alice", "data1", "read"};

    for(auto _ : state)
        e.Enforce(params);
}

BENCHMARK(BenchmarkRBACModelWithDeny);

static void BenchmarkPriorityModel(benchmark::State& state) {
    casbin::Enforcer e(priority_model_path, priority_policy_path);
    casbin::DataList params = {"alice", "data1", "read"};

    for(auto _ : state)
        e.Enforce(params);
}

BENCHMARK(BenchmarkPriorityModel);