//
//	License type: BSD 3-Clause License
//	License copy: https://github.com/Telecominfraproject/wlan-cloud-ucentralgw/blob/master/LICENSE
//
//	Created by Stephane Bourque on 2021-03-04.
//	Arilia Wireless Inc.
//


#include "RESTAPI_managementPolicy_handler.h"
#include "RESTObjects/RESTAPI_ProvObjects.h"
#include "StorageService.h"
#include "Poco/JSON/Parser.h"
#include "Daemon.h"
#include "RESTAPI/RESTAPI_db_helpers.h"

namespace OpenWifi{

    void RESTAPI_managementPolicy_handler::DoGet() {
        std::string UUID = GetBinding("uuid","");
        ProvObjects::ManagementPolicy   Existing;
        if(UUID.empty() || !DB_.GetRecord("id", UUID, Existing)) {
            return NotFound();
        }

        std::string Arg;
        if(HasParameter("expandInUse",Arg) && Arg=="true") {
            Storage::ExpandedListMap    M;
            std::vector<std::string>    Errors;
            Poco::JSON::Object  Inner;
            if(StorageService()->ExpandInUse(Existing.inUse,M,Errors)) {
                for(const auto &[type,list]:M) {
                    Poco::JSON::Array   ObjList;
                    for(const auto &i:list.entries) {
                        Poco::JSON::Object  O;
                        i.to_json(O);
                        ObjList.add(O);
                    }
                    Inner.set(type,ObjList);
                }
            }
            Poco::JSON::Object  Answer;
            Answer.set("entries", Inner);
            return ReturnObject(Answer);
        }

        Poco::JSON::Object  Answer;
        if(QB_.AdditionalInfo)
            AddExtendedInfo(Existing,Answer);

        Existing.to_json(Answer);
        ReturnObject(Answer);
    }

    void RESTAPI_managementPolicy_handler::DoDelete() {
        std::string UUID = GetBinding("uuid","");
        ProvObjects::ManagementPolicy   Existing;
        if(UUID.empty() || !DB_.GetRecord("id", UUID, Existing)) {
            return NotFound();
        }

        if(!Existing.inUse.empty()) {
            return BadRequest(RESTAPI::Errors::StillInUse);
        }

        StorageService()->PolicyDB().DeleteRecord("id", UUID);
        ManageMembership(StorageService()->EntityDB(),&ProvObjects::Entity::managementPolicies,Existing.entity,"",Existing.info.id);
        ManageMembership(StorageService()->VenueDB(),&ProvObjects::Venue::managementPolicies,Existing.venue,"",Existing.info.id);
        return OK();
    }

    void RESTAPI_managementPolicy_handler::DoPost() {
        std::string UUID = GetBinding("uuid","");
        if(UUID.empty()) {
            return BadRequest(RESTAPI::Errors::MissingUUID);
        }

        ProvObjects::ManagementPolicy   NewObject;
        const auto & RawObject = ParsedBody_;
        if(!NewObject.from_json(RawObject)) {
            return BadRequest(RESTAPI::Errors::InvalidJSONDocument);
        }

        if(!CreateObjectInfo(RawObject, UserInfo_.userinfo, NewObject.info)) {
            return BadRequest( RESTAPI::Errors::NameMustBeSet);
        }

        if(NewObject.entity.empty() || !StorageService()->EntityDB().Exists("id", NewObject.entity)) {
            return BadRequest(RESTAPI::Errors::EntityMustExist);
        }

        if(NewObject.venue.empty() || !StorageService()->VenueDB().Exists("id", NewObject.venue)) {
            return BadRequest(RESTAPI::Errors::VenueMustExist);
        }

        NewObject.inUse.clear();
        if(DB_.CreateRecord(NewObject)) {
            AddMembership(StorageService()->EntityDB(),&ProvObjects::Entity::managementPolicies,NewObject.entity,NewObject.info.id);
            AddMembership(StorageService()->VenueDB(),&ProvObjects::Venue::managementPolicies,NewObject.venue,NewObject.info.id);
            PolicyDB::RecordName  AddedObject;
            DB_.GetRecord("id",NewObject.info.id,AddedObject);
            Poco::JSON::Object  Answer;
            AddedObject.to_json(Answer);
            return ReturnObject(Answer);
        }
        InternalError(RESTAPI::Errors::RecordNotCreated);
    }

    void RESTAPI_managementPolicy_handler::DoPut() {
        std::string UUID = GetBinding("uuid","");
        ProvObjects::ManagementPolicy   Existing;
        if(UUID.empty() || !DB_.GetRecord("id", UUID, Existing)) {
            return NotFound();
        }

        ProvObjects::ManagementPolicy   NewPolicy;
        const auto & RawObject = ParsedBody_;
        if(!NewPolicy.from_json(RawObject)) {
            return BadRequest(RESTAPI::Errors::InvalidJSONDocument);
        }

        if(!UpdateObjectInfo(RawObject, UserInfo_.userinfo, Existing.info)) {
            return BadRequest( RESTAPI::Errors::NameMustBeSet);
        }

        std::string FromEntity, ToEntity;
        if(!CreateMove(RawObject,"entity",&PolicyDB::RecordName::entity, Existing, FromEntity, ToEntity, StorageService()->EntityDB()))
            return BadRequest(RESTAPI::Errors::EntityMustExist);

        std::string FromVenue, ToVenue;
        if(!CreateMove(RawObject,"venue",&PolicyDB::RecordName::venue, Existing, FromVenue, ToVenue, StorageService()->VenueDB()))
            return BadRequest(RESTAPI::Errors::EntityMustExist);

        if(!NewPolicy.entries.empty())
            Existing.entries = NewPolicy.entries;

        if(DB_.UpdateRecord("id", Existing.info.id, Existing)) {
            ManageMembership(StorageService()->EntityDB(),&ProvObjects::Entity::managementPolicies, FromEntity,ToEntity,Existing.info.id);
            ManageMembership(StorageService()->VenueDB(),&ProvObjects::Venue::managementPolicies, FromVenue,ToVenue,Existing.info.id);

            ProvObjects::ManagementPolicy   P;
            DB_.GetRecord("id",Existing.info.id,P);
            Poco::JSON::Object  Answer;
            P.to_json(Answer);
            return ReturnObject(Answer);
        }
        InternalError(RESTAPI::Errors::RecordNotUpdated);
    }
}