/*
 * @project: TERA
 * @version: Development (beta)
 * @license: MIT (not for evil)
 * @copyright: Yuriy Ivanov (Vtools) 2017-2019 [progr76@gmail.com]
 * Web: https://terafoundation.org
 * Twitter: https://twitter.com/terafoundation
 * Telegram:  https://t.me/terafoundation
*/

"use strict";
import "./library"
import "./crypto-library"
import "./terahashmining"
import { RBTree } from './library'
import * as crypto from 'crypto';
import * as os from 'os'
import CNode from "./node";
import { Comparator } from "bintrees";
import { SocketSendInfo } from "../interfaces/server";

global.glStopNode = false;
const MAX_TIME_NETWORK_TRANSPORT = 1 * 1000;
var GlSumUser: number;
var GlSumSys: number;
var GlSumIdle: number;
global.CountAllNode = 0;
export default class CCommon {
    VirtualMode: any
    KeyPair: crypto.ECDH
    PubKeyType: string
    addrArr: string[]
    addrStr: string
    HashDBArr: any
    ServerSign: any[] | Buffer
    MetaMap1: any
    MetaMap2: any
    CheckName: any
    NodesArr: any[]
    CurrentBlockNum: number
    BlockNumDB: number
    constructor(SetKeyPair: crypto.ECDH, RunIP: string, RunPort: number, UseRNDHeader: boolean, bVirtual: boolean) {
        global.SERVER = this
        this.VirtualMode = bVirtual
        this.KeyPair = SetKeyPair
        var PubKey: string[] = SetKeyPair.getPublicKey(undefined, 'compressed') as any;
        this.PubKeyType = PubKey[0]
        this.addrArr = PubKey.slice(1)
        this.addrStr = global.GetHexFromArr(this.addrArr)
        this.HashDBArr = global.shaarr2(this.KeyPair.getPrivateKey(), [0, 0, 0, 0, 0, 0, 0, 1])
        this.ServerSign = []
    }
    SendF(Node: CNode, Info: SocketSendInfo, Length?: number) {
        throw new Error('Unsupport Action...')
        // defiend in server.ts
    }
    AddCheckErrCount(Node: CNode, Count: number, StrErr: string) {
        throw new Error('Unsupport Action...')
        // defiend in server.ts
    }
    GetActualNodes(): any {
        throw new Error('Unsupport Action...')
        // defiend in server.ts
    }
    ReadBlockHeaderDB(BlockNum: number): any {
        throw new Error('Unsupport Action...')
        // defiend in block-db.ts(CDB)
    }
    AddStatOnTimer() {
        var CountAll = 0;
        var CurTime = global.GetCurrentTime() - 0;
        for (var i = 0; i < this.NodesArr.length; i++) {
            var Item = this.NodesArr[i];
            if (Item.LastTime && (CurTime - Item.LastTime) < global.NODES_DELTA_CALC_HOUR * 3600 * 1000)
                CountAll++
            else
                if (Item.LastTimeGetNode && (CurTime - Item.LastTimeGetNode) < global.NODES_DELTA_CALC_HOUR * 3600 * 1000)
                    CountAll++
        }
        global.CountAllNode = CountAll
        if (!global.STAT_MODE)
            return;
        var StateTX = global.DApps.Accounts.DBStateTX.Read(0);
        if (StateTX) {
            var Delta = this.CurrentBlockNum - StateTX.BlockNum;
            global.ADD_TO_STAT("MAX:DELTA_TX", Delta)
        }
        var bHasCP = 0;
        if (global.CHECK_POINT.BlockNum) {
            var Block = this.ReadBlockHeaderDB(global.CHECK_POINT.BlockNum);
            if (Block && global.CompareArr(global.CHECK_POINT.Hash, Block.Hash) === 0)
                bHasCP = 1
        }
        var MinVer = global.MIN_VER_STAT;
        if (MinVer === 0)
            MinVer = global.UPDATE_CODE_VERSION_NUM
        var BufMap = {}, BufMap2 = {};
        var arr = this.GetActualNodes();
        var Count = 0, CountHot = 0, CountHotOK = 0, CountActualOK = 0, SumDeltaHot = 0, SumDeltaActual = 0, CountCP = 0, CountLH = 0,
            CountHash = 0, CountVer = 0, CountStop = 0;
        var CountAutoCorrectTime = 0;
        var SumAvgDeltaTime = 0;
        for (var i = 0; i < arr.length; i++) {
            var Node = arr[i];
            if (!Node || Node.IsAddrList)
                continue;
            var INFO = Node.INFO;
            if (!INFO)
                INFO = {}
            if (bHasCP && global.CHECK_POINT.BlockNum && INFO.CheckPointHashDB && global.CompareArr(global.CHECK_POINT.Hash, INFO.CheckPointHashDB) === 0) {
                CountCP++
            }
            if (INFO.LoadHistoryMode)
                CountLH++
            if (Node.StopGetBlock)
                CountStop++
            Count++
            SumAvgDeltaTime += Node.DeltaGlobTime
            if (Node.VersionNum >= MinVer)
                CountVer++
            if (INFO && INFO.BlockNumDB && INFO.BlockNumDB <= this.BlockNumDB) {
                var HashDB = ReadHashFromBufDB(BufMap2, INFO.BlockNumDB);
                if (HashDB && global.CompareArr(HashDB, INFO.HashDB) === 0)
                    CountHash++
            }
            var StrChk = GetCheckAccHash(BufMap, INFO.AccountBlockNum, INFO.AccountsHash);
            var Chck = 0;
            if (StrChk.indexOf("=OK=") >= 0) {
                Chck = 1
            }
            var DeltaTime = Node.DeltaTime;
            if (!DeltaTime)
                DeltaTime = 0
            CountActualOK += Chck
            SumDeltaActual += DeltaTime
            if (Node.Hot) {
                CountHot++
                CountHotOK += Chck
                SumDeltaHot += DeltaTime
            }
            if (INFO.AutoCorrectTime)
                CountAutoCorrectTime++
        }
        global.ADD_TO_STAT("MAX:ALL_NODES", CountAll)
        global.ADD_TO_STAT("MAX:CONNECTED_NODES", Count)
        global.ADD_TO_STAT("MAX:HOT_NODES", CountHot)
        global.ADD_TO_STAT("MAX:HOT_OK", CountHotOK)
        global.ADD_TO_STAT("MAX:ACTUAL_OK", CountActualOK)
        global.ADD_TO_STAT("MAX:CHECK_POINT_OK", CountCP)
        global.ADD_TO_STAT("MAX:COUNTLH", CountLH)
        global.ADD_TO_STAT("MAX:HASH_OK", CountHash)
        global.ADD_TO_STAT("MAX:MIN_VERSION", CountVer)
        global.ADD_TO_STAT("MAX:STOP_GET", CountStop)
        global.ADD_TO_STAT("MAX:AUTOCORRECT", CountAutoCorrectTime)
        global.ADD_TO_STAT("MAX:TIME_DELTA", global.DELTA_CURRENT_TIME)
        if (!Count)
            Count = 1
        if (!CountHot)
            CountHot = 1
        if (Count >= 20) {
            var SumDeltaAvg = 0;
            var AvgGlobTime = SumAvgDeltaTime / Count;
            for (var i = 0; i < arr.length; i++) {
                var Node = arr[i];
                if (!Node || Node.IsAddrList)
                    continue;
                var Delta = AvgGlobTime - Node.DeltaGlobTime;
                SumDeltaAvg += Delta * Delta
            }
            SumDeltaAvg = Math.sqrt(SumDeltaAvg / Count)
            global.ADD_TO_STAT("MAX:DELTA_GLOB_TIME", 100 + AvgGlobTime)
            global.ADD_TO_STAT("MAX:DISP_DELTA_GLOB_TIME", SumDeltaAvg)
            arr.sort(function(a, b) {
                return a.DeltaGlobTime - b.DeltaGlobTime;
            })
            var SumDeltaAvgM = 0;
            var AvgGlobTimeM = arr[Math.trunc(arr.length / 2)].DeltaGlobTime;
            var Length = arr.length;
            var Start = Math.trunc(Length * 0.05);
            var End = Math.trunc(Length * 0.95);
            var NodesCount = 0;
            for (var i = Start; i < End; i++) {
                var Node = arr[i];
                if (!Node || Node.IsAddrList)
                    continue;
                NodesCount++
                var Delta = AvgGlobTimeM - Node.DeltaGlobTime;
                SumDeltaAvgM += Delta * Delta
            }
            if (!NodesCount)
                NodesCount = 1
            SumDeltaAvgM = Math.sqrt(SumDeltaAvgM / NodesCount)
            global.ADD_TO_STAT("MAX:MEDIAN_GLOB_TIME", 100 + AvgGlobTimeM)
            global.ADD_TO_STAT("MAX:DISP_MEDIAN_GLOB_TIME", SumDeltaAvgM)
        }
        global.ADD_TO_STAT("MAX:DELTA_TIME_HOT", SumDeltaHot / CountHot)
        global.ADD_TO_STAT("MAX:DELTA_TIME_ACTUAL", SumDeltaActual / Count)
        global.ADD_TO_STAT("MAX:MEMORY_USAGE", process.memoryUsage().heapTotal / 1024 / 1024)
        global.ADD_TO_STAT("MAX:MEMORY_FREE", os.freemem() / 1024 / 1024)
        var SumUser = 0;
        var SumSys = 0;
        var SumIdle = 0;
        var cpus = os.cpus();
        for (var i = 0; i < cpus.length; i++) {
            var cpu = cpus[i];
            SumUser += cpu.times.user
            SumSys += cpu.times.sys + cpu.times.irq
            SumIdle += cpu.times.idle
        }
        if (GlSumUser !== undefined) {
            var maxsum = cpus.length * 1000;
            global.ADD_TO_STAT("MAX:CPU_USER_MODE", Math.min(maxsum, SumUser - GlSumUser))
            global.ADD_TO_STAT("MAX:CPU_SYS_MODE", Math.min(maxsum, SumSys - GlSumSys))
            global.ADD_TO_STAT("MAX:CPU_IDLE_MODE", Math.min(maxsum, SumIdle - GlSumIdle))
            global.ADD_TO_STAT("MAX:CPU", Math.min(maxsum, SumUser + SumSys - GlSumUser - GlSumSys))
        }
        GlSumUser = SumUser
        GlSumSys = SumSys
        GlSumIdle = SumIdle
    }
    GetNewMeta() {
        return crypto.randomBytes(32);
    }
};
// class SMemBuffer {
//     MetaMap1: { [x: string]: any; }
//     MetaMap2: { [x: string]: any; }
//     CheckName: any
//     constructor(MaxTime: number, CheckName: any) {
//         this.MetaMap1 = {}
//         this.MetaMap2 = {}
//         this.CheckName = CheckName
//         setInterval(this.ShiftMapDirect.bind(this), MaxTime)
//     }
//     GetStrKey(Arr: any) {
//         if (typeof Arr === "number" || typeof Arr === "string") {
//             return Arr;
//         } else {
//             return global.GetHexFromAddres(Arr);
//         }
//         throw "NOT RET!";
//     }
//     LoadValue(Arr: any, bStay: any) {
//         if (!Arr)
//             return undefined;
//         var Key = this.GetStrKey(Arr);
//         var Value = this.MetaMap1[Key];
//         if (Value !== undefined) {
//             if (!bStay)
//                 delete this.MetaMap1[Key]
//             return Value;
//         }
//         Value = this.MetaMap2[Key]
//         if (Value !== undefined) {
//             if (!bStay)
//                 delete this.MetaMap2[Key]
//         }
//         return Value;
//     }
//     SaveValue(Arr, Value) {
//         var Key = this.GetStrKey(Arr);
//         if (Value !== undefined)
//             this.MetaMap1[Key] = Value
//     }
//     ShiftMapDirect() {
//         if (global.glStopNode)
//             return;
//         if (this.CheckName) {
//             var Count = 0;
//             for (var _ in this.MetaMap2) {
//                 Count++
//             }
//             if (Count) {
//                 global.ADD_TO_STAT(this.CheckName, 1, 1)
//             }
//         }
//         this.MetaMap2 = this.MetaMap1
//         this.MetaMap1 = {}
//     }
//     Clear() {
//         this.MetaMap2 = {}
//         this.MetaMap1 = {}
//     }
// };
export class STreeBuffer {
    KeyType: string
    MetaTree1: RBTree<any>
    MetaTree2: RBTree<any>
    CheckName: string
    constructor(MaxTime: number, CompareFunction?: Comparator<any>, KeyType?: string, CheckName?: undefined) {
        this.KeyType = KeyType
        this.MetaTree1 = new RBTree(CompareFunction)
        this.MetaTree2 = new RBTree(CompareFunction)
        this.CheckName = CheckName
        setInterval(this.ShiftMapDirect.bind(this), MaxTime)
    }
    LoadValue(Hash: string, bStay: number) {
        if (!Hash)
            return undefined;
        if (typeof Hash !== this.KeyType)
            throw "MUST ONLY HASH ARRAY: " + Hash;
        var element = this.MetaTree1.find({ hash: Hash });
        if (element) {
            if (!bStay)
                this.MetaTree1.remove(element)
            return element.value;
        }
        element = this.MetaTree2.find({ hash: Hash })
        if (element) {
            if (!bStay)
                this.MetaTree2.remove(element)
            return element.value;
        }
        return undefined;
    }
    SaveValue(Hash: string, Value: { BlockNum: any; Power?: any; SumHash?: any; }) {
        if (typeof Hash !== this.KeyType)
            throw "MUST ONLY TYPE=" + this.KeyType + " in " + Hash;
        if (Value !== undefined) {
            var element = this.MetaTree1.find({ hash: Hash });
            if (element)
                element.value = Value
            else
                this.MetaTree1.insert({ hash: Hash, value: Value })
        }
    }
    ShiftMapDirect() {
        if (this.CheckName && this.MetaTree2.size) {
            global.ADD_TO_STAT(this.CheckName, this.MetaTree2.size, 1)
            var it = this.MetaTree2.iterator(), Item;
            while ((Item = it.next()) !== null) {
                var Name = Item.value.Name;
                global.ADD_TO_STAT(this.CheckName + ":" + Name, 1, 1)
            }
        }
        this.MetaTree2.clear()
        var empty_tree = this.MetaTree2;
        this.MetaTree2 = this.MetaTree1
        this.MetaTree1 = empty_tree
    }
    Clear() {
        this.MetaTree1.clear()
        this.MetaTree2.clear()
    }
};

function ReadHashFromBufDB(Map: { [x: string]: any; }, BlockNum: number) {
    var MyHash = Map[BlockNum];
    if (!MyHash) {
        var Block = global.SERVER.ReadBlockHeaderDB(BlockNum);
        if (Block)
            MyHash = Block.Hash;
        else
            MyHash = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
        Map[BlockNum] = MyHash;
    }
    return MyHash;
};

function GetCheckAccHash(Map: { [x: string]: any; }, BlockNum: number, Hash: Buffer) {
    var MyHash = Map[BlockNum];
    if (!MyHash) {
        MyHash = global.DApps.Accounts.GetHashOrUndefined(BlockNum);
        Map[BlockNum] = MyHash;
    }
    if (MyHash) {
        if (!Hash)
            return "=ERR:NO=";
        if (global.CompareArr(Hash, MyHash) !== 0)
            return "=ERR:BAD=";
        else
            return "=OK=";
    } else {
        if (!Hash)
            return "=OK=:NO";
        else
            return "=MY:NO=";
    }
};
global.GetCheckAccHash = GetCheckAccHash;
global.ReadHashFromBufDB = ReadHashFromBufDB;
global.STreeBuffer = STreeBuffer;
global.TestCreateTr = TestCreateTr;

function TestCreateTr() {
    const FORMAT_CREATE = "{\
        Type:byte,\
        Currency:uint,\
        PubKey:arr33,\
        Description:str40,\
        Adviser:uint,\
        Reserve:arr7,\
        POWCreate:arr12,\
        }";
    var TR = {
        Type: 100, Currency: 0, PubKey: [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
            0, 0, 0, 0, 0], Description: "Description", Adviser: 10,
    };
    var Body = global.BufLib.GetBufferFromObject(TR, FORMAT_CREATE, 1000, {});
    var startTime = process.hrtime();
    var StartData = Date.now();
    var nonce = CreateHashBodyPOWInnerMinPower(Body, 1000, 17);
    var Time = process.hrtime(startTime);
    var power = global.GetPowPower(global.shaarr(Body));
    var deltaTime = (Time[0] * 1000 + Time[1] / 1e6) / 1000;
    var DeltaData = ((new Date() as any) - StartData) / 1000;
    global.ToLog("power=" + power + "  nonce=" + nonce + " TIME=" + deltaTime + " sec" + "  DeltaData=" + DeltaData + " sec");
    return { time1: deltaTime, time2: DeltaData };
};

function CreateHashBody(body: Buffer, Num: number, Nonce: number) {
    body.writeUIntLE(Num, body.length - 12, 6);
    body.writeUIntLE(Nonce, body.length - 6, 6);
    return global.shaarr(body);
};

function CreateHashBodyPOWInnerMinPower(arr: Buffer, BlockNum: number, MinPow: number) {
    var nonce = 0;
    while (1) {
        var arrhash = CreateHashBody(arr, BlockNum, nonce);
        var power = global.GetPowPower(arrhash);
        if (power >= MinPow) {
            return nonce;
        }
        nonce++;
    }
};