import mysql from 'mysql2';
import {Keypair, Connection, PublicKey} from '@solana/web3.js';
import {createAssociatedTokenAccount} from '@solana/spl-token';
import bs58 from 'bs58';
import {GenerateATAs} from './sol.js';
import dotenv from 'dotenv';
dotenv.config();


const pool = mysql.createPool({
    host: process.env.MYSQL_HOST,
    user: process.env.MYSQL_USER,
    password: process.env.MYSQL_PASSWORD,
    database: process.env.MYSQL_DATABASE
}).promise();


export async function RegisterNewUser(email,password){
    const existingUser = await GetUserFromEmail(email);
    if(existingUser){
        return undefined;
    }

    const newWallet = Keypair.generate();
    const pubKey=newWallet.publicKey.toBase58();

    //GenerateATAs(newWallet);

    await pool.query(`INSERT INTO Users (pub_key, email,password) VALUES(?, ?, ?)`, [pubKey, email, password]);
    await pool.query(`INSERT INTO PrivateKeys (pub_key, private_key) VALUES(?, ?)`, [pubKey, bs58.encode(newWallet.secretKey)]);

    return {
        email: email,
        publicKey: pubKey
    }
}

export async function GetUserFromEmail(email){
    const [rows] = await pool.query("SELECT pub_key,email FROM Users WHERE email=?", [email]);
    return rows[0];
}

export async function GetUserFromPubkey(pubkey){
    const [rows] = await pool.query("SELECT pub_key,email FROM Users WHERE pub_key=?", [pubkey]);
    return rows[0];
}

export async function Authneticate(email, password){
    const [rows] = await pool.query("SELECT pub_key,email FROM Users WHERE email=? AND password=?", [email, password]);
    return rows.length >0;
}

export async function GetPrivateKey(pubkey){
    const [rows] = await pool.query("SELECT private_key FROM PrivateKeys WHERE pub_key=?", [pubkey]);

    return rows[0];
}

export async function GetKeypairFromEmail(email){
    const [rows] = await pool.query("SELECT Users.pub_key,Users.email, PrivateKeys.private_key FROM Users JOIN PrivateKeys ON Users.pub_key = PrivateKeys.pub_key WHERE email=?", [email]);
    return rows[0];
}

export async function CreateNewRequest(){
    const id = uuidv4();

    await pool.query(`INSERT INTO Requests (id) VALUES(?)`, [id]);

    return id;
}

export async function SetRequestResult(id,result){
    const [rows] = await pool.query("UPDATE Requests SET result=?, status=1 WHERE id=?", [result,id]);

    return rows.length;
}


function uuidv4() {
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
    .replace(/[xy]/g, function (c) {
        const r = Math.random() * 16 | 0, 
            v = c == 'x' ? r : (r & 0x3 | 0x8);
        return v.toString(16);
    });
}