<?php

namespace App\Services\Ticket;

use App\Models\Player;
use App\Models\WalletTxn;
use App\Lottery\ErrorCode;
use App\Models\TicketOrder;
use App\Models\PlayerWallet;
use App\Exceptions\TicketOperationException;

final class TicketWalletService
{
    private const TXN_POSTED = 'posted';

    private const TXN_DIR_OUT = 2;

    private const TXN_DIR_IN = 1;

    public function deduct(Player $player, string $currencyCode, int $amountMinor, TicketOrder $order): void
    {
        $wallet = PlayerWallet::query()
            ->where('player_id', $player->id)
            ->where('wallet_type', 'lottery')
            ->where('currency_code', strtoupper($currencyCode))
            ->lockForUpdate()
            ->first();

        if ($wallet === null) {
            $wallet = PlayerWallet::query()->create([
                'player_id' => $player->id,
                'wallet_type' => 'lottery',
                'currency_code' => strtoupper($currencyCode),
                'balance' => 0,
                'frozen_balance' => 0,
                'status' => 0,
                'version' => 0,
            ]);
            $wallet = PlayerWallet::query()->whereKey($wallet->id)->lockForUpdate()->firstOrFail();
        }

        $before = (int) $wallet->balance;
        if ($before < $amountMinor) {
            throw new TicketOperationException('bet_insufficient_balance', ErrorCode::BetInsufficientBalance->value);
        }

        $after = $before - $amountMinor;
        $wallet->forceFill([
            'balance' => $after,
            'version' => (int) $wallet->version + 1,
        ])->save();

        WalletTxn::query()->create([
            'txn_no' => $this->newTxnNo(),
            'player_id' => $player->id,
            'wallet_id' => $wallet->id,
            'biz_type' => 'bet_deduct',
            'biz_no' => $order->order_no,
            'direction' => self::TXN_DIR_OUT,
            'amount' => $amountMinor,
            'balance_before' => $before,
            'balance_after' => $after,
            'status' => self::TXN_POSTED,
            'external_ref_no' => null,
            'idempotent_key' => $order->client_trace_id,
            'remark' => null,
        ]);
    }

    /**
     * 结算派彩入账（产品文档：派彩写入钱包流水；幂等键按结算批次 + 玩家）。
     */
    public function creditSettlementPayout(Player $player, string $currencyCode, int $amountMinor, int $settlementBatchId): void
    {
        if ($amountMinor <= 0) {
            return;
        }

        $currency = strtoupper($currencyCode);

        $wallet = PlayerWallet::query()
            ->where('player_id', $player->id)
            ->where('wallet_type', 'lottery')
            ->where('currency_code', $currency)
            ->lockForUpdate()
            ->first();

        if ($wallet === null) {
            $wallet = PlayerWallet::query()->create([
                'player_id' => $player->id,
                'wallet_type' => 'lottery',
                'currency_code' => $currency,
                'balance' => 0,
                'frozen_balance' => 0,
                'status' => 0,
                'version' => 0,
            ]);
            $wallet = PlayerWallet::query()->whereKey($wallet->id)->lockForUpdate()->firstOrFail();
        }

        $before = (int) $wallet->balance;
        $after = $before + $amountMinor;
        $wallet->forceFill([
            'balance' => $after,
            'version' => (int) $wallet->version + 1,
        ])->save();

        WalletTxn::query()->create([
            'txn_no' => $this->newTxnNo(),
            'player_id' => $player->id,
            'wallet_id' => $wallet->id,
            'biz_type' => 'settle_payout',
            'biz_no' => 'SB'.$settlementBatchId,
            'direction' => self::TXN_DIR_IN,
            'amount' => $amountMinor,
            'balance_before' => $before,
            'balance_after' => $after,
            'status' => self::TXN_POSTED,
            'external_ref_no' => null,
            'idempotent_key' => 'settle-payout:'.$settlementBatchId.':'.$player->id,
            'remark' => null,
        ]);
    }

    private function newTxnNo(): string
    {
        return 'WL'.now()->format('YmdHis').str_pad((string) random_int(0, 999999), 6, '0', STR_PAD_LEFT);
    }
}