<?php


namespace blockchain;


use GuzzleHttp\Client;
use think\Config;
use Tron\Address;
use Tron\Api;
use Tron\Exceptions\TronErrorException;
use Tron\TRC20;
use Tron\TRX;

class TronService
{

    const API_URI = 'https://api.trongrid.io';
    public static $trxWallet;
    public static $address;
    public static $decimal;
    public static $api;

    public function __construct(string $address, int $decimal)
    {
        if (!$address) {
            self::$trxWallet = null;
        }
        $config = Config::get('blockchain.trc');
        $uri = $config['node'] ?? self::API_URI;
        self::$api = new Api(new Client(['base_uri' => $uri]));
        $config = [
            'contract_address' => $address,// USDT TRC20
            'decimals' => $decimal,
        ];
        self::$trxWallet = new TRC20(self::$api, $config);
        self::$address = $address;
        self::$decimal = $decimal;
    }

    /**
     * @param string $money_type
     * @return TronService
     */
    public static function instance(string $money_type): TronService
    {
        $config = Config::get('blockchain.trc');
        $money_types = $config['tokens'];

        $address = $money_types[$money_type]['address'] ?? "";
        $decimal = $money_types[$money_type]['decimal'] ?? 0;

        return new self($address, $decimal);
    }

    //TODO main

    /**
     * 生成地址
     * @return array
     */
    public function createAddress(): array
    {
        if (!self::$trxWallet) {
            return [
                'privateKey' => '',
                'address' => '',
                'hexAddress' => ''
            ];
        }
        try {
            $address = self::$trxWallet->generateAddress();
            return [
                'privateKey' => $address->privateKey,
                'address' => $address->address,
                'hexAddress' => $address->hexAddress
            ];
        } catch (\Exception $e) {
            return [
                'privateKey' => '',
                'address' => '',
                'hexAddress' => ''
            ];
        }
    }

    /**
     * 余额
     * @param Address $address
     * @return float
     */
    public function tokenBalance(Address $address): float
    {
        if (!self::$trxWallet) {
            return 0;
        }
        try {
            $balance = self::$trxWallet->balance($address);
            return (float)$balance;
        } catch (\Exception $e) {
            return 0;
        }
    }


    public function balance(string $address)
    {
        $address = new Address($address);
        $trx = new TRX(self::$api);
        return $trx->balance($address);
    }


    /**
     * 交易
     * @param Address $from
     * @param Address $to
     * @param float $amount
     * @return array
     */
    public function transfer(Address $from, Address $to, float $amount): array
    {
        try {
            $trx = new TRX(self::$api);
            $transfer = $trx->transfer($from, $to, $amount);
            return ['msg' => 'success', 'data' => $transfer, 'status' => true];
        } catch (\Exception $e) {
            return ['msg' => $e->getMessage(), 'status' => false, 'data' => $e->getTrace()];
        }
    }

    /**
     * 交易
     * @param Address $from
     * @param Address $to
     * @param float $amount
     * @return array
     */
    public function tokenTransfer(Address $from, Address $to, float $amount): array
    {
        if (!self::$trxWallet) {
            return ['msg' => '代币不支持转账', 'status' => false];
        }
        try {
            $transfer = self::$trxWallet->transfer($from, $to, $amount);
            return ['msg' => 'success', 'data' => $transfer, 'status' => true];
        } catch (\Exception $e) {
            return ['msg' => $e->getMessage(), 'status' => false, 'data' => $e->getTrace()];
        }
    }

    /**
     * 获取交易
     * @param $address
     * @param $start_time
     * @return array
     */
    public function getTransfer($address, $start_time): array
    {
        $contract_address = self::$address;
        try {
            $uri = "https://api.trongrid.io/v1/accounts/{$address}/transactions/trc20";
            return json_decode(do_request($uri, [
                'min_timestamp' => $start_time,
                'limit' => 200,
                'contract_address' => $contract_address,
                'order_by' => 'block_timestamp,asc'
            ], null, false), true);
        } catch (\Exception $e) {
            return ['msg' => $e->getMessage(), 'status' => false, 'data' => $e->getTrace()];
        }
    }
}