/*******************************************************************************
 * Copyright (c) 2025, Jan Koester jan.koester@gmx.net
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 * Neither the name of the <organization> nor the
 *      names of its contributors may be used to endorse or promote products
 *      derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 *******************************************************************************/

#include "types.h"
#include "user.h"

authdb::UserData::UserData(uuid_t id) : AuthData(id){
    username=nullptr;
    firstname=nullptr;
    lastname=nullptr;
    mail=nullptr;
    pwhash=nullptr;
    avatar=nullptr;
    uuid_copy(uid,id);
}

authdb::UserData::~UserData(){
}

void authdb::UserData::setFirstName(const char* src){
   setAuthData<char,char>(DataType::UserData,StorageType::TextStorage,this,firstname,"firstname",src, strlen(src)+1);
}

const char *authdb::UserData::getFirstname(){
    return getAuthData<char>(DataType::UserData,StorageType::TextStorage,this,firstname,"firstname");
}


void authdb::UserData::setLastName(const char* src){
    setAuthData<char,char>(DataType::UserData,StorageType::TextStorage,this,lastname,"lastname",src,strlen(src)+1);
}

const char * authdb::UserData::getLastname(){
    return getAuthData<char>(DataType::UserData,StorageType::TextStorage,this,lastname,"lastname");
}


void authdb::UserData::setMail(const char* src){
    setAuthData<char,char>(DataType::UserData,StorageType::TextStorage,this,mail,"mail",src,strlen(src)+1);
}

const char *authdb::UserData::getMail(){
    return getAuthData<char>(DataType::UserData,StorageType::TextStorage,this,mail,"mail");
}


void authdb::UserData::setPwHash(const char* src){
    setAuthData<char,char>(DataType::UserData,StorageType::TextStorage,this,pwhash,"pwhash",src,strlen(src)+1);
}

const char * authdb::UserData::getPwHash(){
    return getAuthData<char>(DataType::UserData,StorageType::TextStorage,this,pwhash,"pwhash");
}


void authdb::UserData::setUserName(const char* src){
    setAuthData<char,char>(DataType::UserData,StorageType::TextStorage,this,username,"username",src,strlen(src)+1);
}

const char * authdb::UserData::getUsername(){
    return getAuthData<char>(DataType::UserData,StorageType::TextStorage,this,username,"username");
}

void authdb::UserData::setAvatar(const std::vector<char>& src){
    setAuthData<char,char>(DataType::UserData,StorageType::BinaryStorage,this,
                                       avatar,"avatar",src.data(),src.size());
}

void authdb::UserData::getAvatar(std::vector<char>& dest){
    if(avatar && avatar->data)
        std::copy(avatar->data,avatar->data+avatar->datasize,
                  std::back_inserter(dest));
    else
        throw(authdb::AuthBackendError("Avatar data nout found !"));
}

void authdb::User::create(AuthBackend &backend,class UserData* dat){

    int exi=0;

    if(exits(backend,&dat->uid,dat->getUsername(),exi)){
       switch(exi){
           case 1:
                throw authdb::AuthBackendError("Create User: Username already Exists aborting!");
           default:
                throw authdb::AuthBackendError("Create User: UUID already Exists aborting!");
       }
    }

    size_t wd=backend.end();

    for(std::shared_ptr<AuthData> curec(dat); curec; curec=curec->next()){
         curec->Data->type=UserData;
         backend.setPos(wd);
         backend.write((unsigned char*)curec->Data.get(),sizeof(struct AuthData::Record));
         backend.write((unsigned char*)curec->Data->data,curec->Data->datasize);
         wd=backend.end();
    }

}

bool authdb::User::exits(AuthBackend& backend, uuid_t* uid, const char* name,int &ret){
    authdb::AuthData::Record cur;

    size_t rd=sizeof(authdb::AuthHeader),end=backend.end();

    while(rd<end){
        backend.setPos(rd);
        backend.read((unsigned char*)&cur,sizeof(AuthData::Record));
        rd=backend.getPos()+cur.datasize;
        if(strcmp(cur.fieldname,"username")==0 ){
            cur.data=new char[cur.datasize];
            backend.read((unsigned char*)cur.data,cur.datasize);
            if(name && strcmp(cur.data,name) == 0){
                delete[] cur.data;
                ret=1;
                return true;

            }else if(uid && uuid_compare(cur.uuid,*uid)==0){
                delete[] cur.data;
                ret=2;
                return true;
            }
            delete[] cur.data;
        }
    }
    ret=-1;
    return false;
}


void authdb::User::edit(AuthBackend &backend,class UserData& dat, size_t &pos){
}

void authdb::User::remove(AuthBackend &backend,const uuid_t uid){
    delRecord(backend,uid,DataType::UserData);
}

void authdb::User::info(AuthBackend &backend, class UserData& dat, size_t &pos){
    size_t end=backend.end();

    if(uuid_is_null(dat.uid))
        throw AuthBackendError("user info uid required!");

    while(pos<end){
        authdb::AuthData::Record *cur=new AuthData::Record;
        backend.setPos(pos);
        backend.read((unsigned char*)cur,sizeof(AuthData::Record));
        pos=backend.getPos()+cur->datasize;
        if(cur->type == UserData && uuid_compare(dat.uid,cur->uuid) == 0
            && strcmp(cur->fieldname,"username")==0
        ){

            if(!getRecord(backend,dat,DataType::UserData))
                continue;

            if(strcmp(dat.Data->fieldname,"username")==0){
                dat.username=dat.Data;
            }else if(strcmp(dat.Data->fieldname,"firstname")==0){
                dat.firstname=dat.Data;
            }else if(strcmp(dat.Data->fieldname,"lastname")==0){
                dat.lastname=dat.Data;
            }else if(strcmp(dat.Data->fieldname,"mail")==0){
                dat.mail=dat.Data;
            }else if(strcmp(dat.Data->fieldname,"pwhash")==0){
                dat.pwhash=dat.Data;
            }else if(strcmp(dat.Data->fieldname,"avatar")==0){
                dat.avatar=dat.Data;
            }
        }
        delete cur;
    }
}