/**
 *    Copyright (C) 2021-present MongoDB, Inc.
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the Server Side Public License, version 1,
 *    as published by MongoDB, Inc.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    Server Side Public License for more details.
 *
 *    You should have received a copy of the Server Side Public License
 *    along with this program. If not, see
 *    <http://www.mongodb.com/licensing/server-side-public-license>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the Server Side Public License in all respects for
 *    all of the code used other than as permitted herein. If you modify file(s)
 *    with this exception, you may extend this exception to your version of the
 *    file(s), but you are not obligated to do so. If you do not wish to do so,
 *    delete this exception statement from your version. If you delete this
 *    exception statement from all source files in the program, then also delete
 *    it in the license file.
 */

#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/repl/repl_server_parameters_gen.h"
#include "mongo/db/serverless/tenant_split_commands_gen.h"

namespace mongo {
namespace {

class DonorStartSplitCmd : public TypedCommand<DonorStartSplitCmd> {
public:
    using Request = DonorStartSplit;
    using Response = DonorStartSplitResponse;

    class Invocation : public InvocationBase {

    public:
        using InvocationBase::InvocationBase;

        Response typedRun(OperationContext* opCtx) {
            uassert(6057900,
                    "feature \"shard split\" not supported",
                    repl::feature_flags::gShardSplit.isEnabled(
                        serverGlobalParams.featureCompatibility));
            return Response(TenantSplitDonorStateEnum::kCommitted);
        }

    private:
        void doCheckAuthorization(OperationContext* opCtx) const final {
            uassert(ErrorCodes::Unauthorized,
                    "Unauthorized",
                    AuthorizationSession::get(opCtx->getClient())
                        ->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
                                                           ActionType::runTenantMigration));
        }

        bool supportsWriteConcern() const override {
            return true;
        }

        NamespaceString ns() const {
            return NamespaceString(request().getDbName(), "");
        }
    };

    std::string help() const {
        return "Start an opereation to split a tenant into its own slice.";
    }

    bool adminOnly() const override {
        return true;
    }

    BasicCommand::AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
        return BasicCommand::AllowedOnSecondary::kNever;
    }
} donorStartSplitCmd;

class DonorForgetSplitCmd : public TypedCommand<DonorForgetSplitCmd> {
public:
    using Request = DonorForgetSplit;

    class Invocation : public InvocationBase {

    public:
        using InvocationBase::InvocationBase;

        void typedRun(OperationContext* opCtx) {
            uassert(6057901,
                    "feature \"shard split\" not supported",
                    repl::feature_flags::gShardSplit.isEnabled(
                        serverGlobalParams.featureCompatibility));
            return;
        }

    private:
        void doCheckAuthorization(OperationContext* opCtx) const final {
            uassert(ErrorCodes::Unauthorized,
                    "Unauthorized",
                    AuthorizationSession::get(opCtx->getClient())
                        ->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
                                                           ActionType::runTenantMigration));
        }

        bool supportsWriteConcern() const override {
            return true;
        }

        NamespaceString ns() const {
            return NamespaceString(request().getDbName(), "");
        }
    };

    std::string help() const override {
        return "Forget a tenant split operation.";
    }

    bool adminOnly() const override {
        return true;
    }

    BasicCommand::AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
        return BasicCommand::AllowedOnSecondary::kNever;
    }
} donorForgetSplitCmd;

class DonorAbortSplitCmd : public TypedCommand<DonorAbortSplitCmd> {
public:
    using Request = DonorAbortSplit;

    class Invocation : public InvocationBase {

    public:
        using InvocationBase::InvocationBase;

        void typedRun(OperationContext* opCtx) {
            uassert(6057902,
                    "feature \"shard split\" not supported",
                    repl::feature_flags::gShardSplit.isEnabled(
                        serverGlobalParams.featureCompatibility));
            return;
        }

    private:
        void doCheckAuthorization(OperationContext* opCtx) const final {
            uassert(ErrorCodes::Unauthorized,
                    "Unauthorized",
                    AuthorizationSession::get(opCtx->getClient())
                        ->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
                                                           ActionType::runTenantMigration));
        }

        bool supportsWriteConcern() const override {
            return true;
        }

        NamespaceString ns() const {
            return NamespaceString(request().getDbName(), "");
        }
    };

    std::string help() const override {
        return "Abort a tenant split operation.";
    }

    bool adminOnly() const override {
        return true;
    }

    BasicCommand::AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
        return BasicCommand::AllowedOnSecondary::kNever;
    }
} donorAbortSplitCmd;

}  // namespace
}  // namespace mongo