<?php

namespace app\admin\controller\config;

use app\common\controller\Backend;
use app\common\library\pay\VirtualPayService;
use think\Cache;

/**
 * 虚拟支付管理
 *
 * @icon fa fa-credit-card
 */
class VirtualPay extends Backend
{

    /**
     * @var VirtualPayService
     */
    protected $virtualPayService = null;

    public function _initialize()
    {
        parent::_initialize();
        try {
            $this->virtualPayService = new VirtualPayService();
        } catch (\Exception $e) {
        }
    }

    /**
     * 查询商家账户可提现余额
     * @return mixed
     */
    public function queryBizBalance()
    {
        if (!$this->virtualPayService) {
            return $this->error('虚拟支付未配置，请先完成虚拟支付配置');
        }

        try {
            $result = $this->virtualPayService->queryBizBalance();
        } catch (\Exception $e) {
            return $this->error('查询余额失败：' . $e->getMessage());
        }

        if (isset($result['errcode']) && $result['errcode'] !== 0) {
            return $this->error('查询失败：' . ($result['errmsg'] ?? '未知错误'));
        }

        return $this->success('查询成功', $result);
    }

    /**
     * 创建提现单
     * @return mixed
     */
    public function createWithdraw()
    {
        if (!$this->virtualPayService) {
            return $this->error('虚拟支付未配置，请先完成虚拟支付配置');
        }

        $virtualPayConfig = \app\common\model\config\System::getConfig('virtual_pay');
        if (isset($virtualPayConfig['balance_withdraw_switch']) && $virtualPayConfig['balance_withdraw_switch'] === 'close') {
            return $this->error('余额提现功能已关闭');
        }

        $amount = $this->request->post('amount', '');
        $withdrawId = $this->request->post('withdraw_no', '');

        if (empty($withdrawId)) {
            $withdrawId = $this->virtualPayService->generateWithdrawNo();
        }

        if (strlen($withdrawId) < 8 || strlen($withdrawId) > 32) {
            return $this->error('提现单号长度必须在8-32个字符之间');
        }

        if ($amount !== '' && (!is_numeric($amount) || $amount <= 0)) {
            return $this->error('提现金额必须大于0');
        }

        try {
            $result = $this->virtualPayService->createWithdrawOrder($withdrawId, $amount);
        } catch (\Exception $e) {
            return $this->error('创建提现单失败：' . $e->getMessage());
        }

        if (isset($result['errcode']) && $result['errcode'] !== 0) {
            return $this->error('提现失败：' . ($result['errmsg'] ?? '未知错误'));
        }

        $data = [
            'withdraw_no'    => $result['withdraw_no'] ?? $withdrawId,
            'wx_withdraw_no' => $result['wx_withdraw_no'] ?? '',
        ];

        return $this->success('提现单创建成功', $data);
    }

    /**
     * 查询提现单
     * @return mixed
     */
    public function queryWithdraw()
    {
        if (!$this->virtualPayService) {
            return $this->error('虚拟支付未配置，请先完成虚拟支付配置');
        }

        $withdrawId = $this->request->post('withdraw_no', '');
        if (empty($withdrawId)) {
            return $this->error('提现单号不能为空');
        }

        try {
            $result = $this->virtualPayService->queryWithdrawOrder($withdrawId);
        } catch (\Exception $e) {
            return $this->error('查询提现单失败：' . $e->getMessage());
        }

        if (isset($result['errcode']) && $result['errcode'] !== 0) {
            return $this->error('查询失败：' . ($result['errmsg'] ?? '未知错误'));
        }

        $statusMap = [1 => '提现中', 2 => '提现成功', 3 => '提现失败'];
        if (isset($result['status'])) {
            $result['status_text'] = $statusMap[$result['status']] ?? '未知';
        }

        return $this->success('查询成功', $result);
    }

    /**
     * 获取虚拟支付配置
     * @return mixed
     */
    public function getConfig()
    {
        $config = \app\common\model\config\System::getConfig('virtual_pay');
        if (!$config) {
            return $this->error('配置不存在');
        }

        $config['exchange_rate'] = $config['exchange_rate'] ?? '1';

        return $this->success('获取成功', $config);
    }

    /**
     * 保存虚拟支付配置
     * @return mixed
     */
    public function setConfig()
    {
        $row = $this->request->post("row/a", [], 'trim');
        if (!$row) {
            return $this->error('参数不能为空');
        }

        $configName = 'virtual_pay';
        $config = \app\common\model\config\System::load($configName);
        if (!$config) {
            return $this->error('配置不存在');
        }
        $config = $this->syncConfigWithDefault($configName, $config);

        foreach ($config as &$item) {
            if (isset($row[$item['name']])) {
                $value = $row[$item['name']];
                if ($item['name'] === 'virtual_goods_types') {
                    $value = $this->normalizeVirtualGoodsTypes($value);
                }
                if ($item['name'] === 'exchange_rate') {
                    $value = in_array(intval($value), [1, 10, 100], true) ? (string)intval($value) : '1';
                }
                $item['value'] = $value;
            }
        }

        $model = new \app\admin\model\config\System();
        $dbRow = $model->where(['name' => $configName])->find();
        if ($dbRow) {
            $dbRow->value = json_encode(array_values($config), JSON_UNESCAPED_UNICODE);
            $dbRow->save();
        }

        Cache::rm(\app\common\constant\cache\Keys::SYSTEM_CONFIG($configName));

        \think\Log::info('[VirtualPay] 配置已更新，缓存已清除');

        return $this->success('保存成功');
    }

    /**
     * 补齐新增的默认配置项，保留已有值。
     * @param string $configName
     * @param array $config
     * @return array
     */
    private function syncConfigWithDefault($configName, $config)
    {
        $defaultConfig = \app\common\model\fill\Handle::getSystemDefaultConfig($configName);
        if (!$defaultConfig) {
            return $config;
        }

        $configMap = [];
        foreach ($config as $item) {
            if (isset($item['name'])) {
                $configMap[$item['name']] = $item;
            }
        }

        $result = [];
        foreach ($defaultConfig as $defaultItem) {
            if (!isset($defaultItem['name'])) {
                continue;
            }
            $result[] = isset($configMap[$defaultItem['name']]) ? array_merge($defaultItem, ['value' => $configMap[$defaultItem['name']]['value']]) : $defaultItem;
        }

        return $result;
    }

    /**
     * 兼容前端用数组、JSON字符串或逗号字符串提交复选框值。
     * @param mixed $value
     * @return array
     */
    private function normalizeVirtualGoodsTypes($value)
    {
        if (is_string($value)) {
            $value = trim($value);
            $decoded = json_decode($value, true);
            if (json_last_error() === JSON_ERROR_NONE && is_array($decoded)) {
                $value = $decoded;
            } elseif ($value === '') {
                $value = [];
            } else {
                $value = explode(',', $value);
            }
        }

        if (!is_array($value)) {
            return [];
        }

        $list = [];
        foreach ($value as $item) {
            $item = trim((string)$item);
            if ($item !== '') {
                $list[] = $item;
            }
        }

        return array_values(array_unique($list));
    }
}