<?php

namespace app\admin\controller\fc;

use app\common\controller\Backend;
use think\Db;

/**
 * 同城-资金流水
 *
 * @icon fa fa-circle-o
 */
class Financeflow extends Backend
{

    /**
     * FcFinanceFlow模型对象
     * @var \app\admin\model\FcFinanceFlow
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\FcFinanceFlow;

    }


    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */


    /**
     * 导出资金流水（Excel）
     * GET fc/financeflow/export?type=income|expense
     */
    public function export()
    {
        $type = trim((string)$this->request->get('type', ''));

        $q = Db::name('fc_finance_flow');
        if ($type !== '') {
            $q->where('type', $type);
        }
        $rows = $q->order('createtime desc')->limit(50000)->select();

        $spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();
        $sheet->setTitle('资金流水');
        $sheet->fromArray(['流水号', '类型', '场景', '金额(元)', '账户余额(元)', '关联ID', '备注', '时间'], null, 'A1');

        $r = 2;
        foreach ($rows as $row) {
            $sheet->fromArray([
                (string)$row['flow_no'],
                $row['type'] === 'income' ? '收入' : '支出',
                (string)$row['scene'],
                (float)$row['amount'],
                (float)$row['balance'],
                (int)$row['related_id'],
                (string)$row['remark'],
                date('Y-m-d H:i:s', (int)$row['createtime']),
            ], null, 'A' . $r);
            $r++;
        }

        $this->downloadXlsx($spreadsheet, '资金流水_' . date('YmdHis'));
    }

    /**
     * 导出营收报表（Excel）
     * GET fc/financeflow/exportReport?period=day|month|year
     */
    public function exportReport()
    {
        $period = trim((string)$this->request->get('period', 'month'));
        if (!in_array($period, ['day', 'month', 'year'], true)) {
            $period = 'month';
        }
        $fmtMap = ['day' => '%Y-%m-%d', 'month' => '%Y-%m', 'year' => '%Y'];
        $fmt = $fmtMap[$period];

        $post = $this->periodSum('post', $fmt);
        $member = $this->periodSum('member', $fmt);
        $recharge = $this->periodSum('recharge', $fmt);
        $withdraw = $this->periodWithdraw($fmt);

        $keys = array_unique(array_merge(array_keys($post), array_keys($member), array_keys($recharge), array_keys($withdraw)));
        sort($keys);

        $spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();
        $sheet->setTitle('营收报表');
        $sheet->fromArray(['周期', '发布收入', '会员收入', '充值收入', '提现支出', '净收入'], null, 'A1');

        $r = 2;
        foreach ($keys as $k) {
            $p = isset($post[$k]) ? (float)$post[$k] : 0;
            $m = isset($member[$k]) ? (float)$member[$k] : 0;
            $rc = isset($recharge[$k]) ? (float)$recharge[$k] : 0;
            $w = isset($withdraw[$k]) ? (float)$withdraw[$k] : 0;
            $sheet->fromArray([
                (string)$k,
                round($p, 2),
                round($m, 2),
                round($rc, 2),
                round($w, 2),
                round($p + $m + $rc - $w, 2),
            ], null, 'A' . $r);
            $r++;
        }

        $label = ['day' => '日', 'month' => '月', 'year' => '年'][$period];
        $this->downloadXlsx($spreadsheet, '营收报表_按' . $label . '_' . date('YmdHis'));
    }

    /** 按周期聚合某类已支付订单 */
    protected function periodSum($type, $fmt)
    {
        $rows = Db::name('fc_order')
            ->where('status', 'paid')
            ->where('type', $type)
            ->field("FROM_UNIXTIME(createtime, '{$fmt}') AS period, SUM(amount) AS total")
            ->group('period')
            ->select();
        $map = [];
        foreach ($rows as $row) {
            $map[$row['period']] = (float)$row['total'];
        }
        return $map;
    }

    /** 按周期聚合已到账提现 */
    protected function periodWithdraw($fmt)
    {
        $rows = Db::name('fc_withdraw')
            ->where('status', 'paid')
            ->whereNotNull('paytime')
            ->field("FROM_UNIXTIME(paytime, '{$fmt}') AS period, SUM(amount) AS total")
            ->group('period')
            ->select();
        $map = [];
        foreach ($rows as $row) {
            $map[$row['period']] = (float)$row['total'];
        }
        return $map;
    }

    /** 输出 xlsx 下载 */
    protected function downloadXlsx($spreadsheet, $filename)
    {
        $filename = preg_replace('/[^\w\x{4e00}-\x{9fa5}\-]/u', '', $filename) . '.xlsx';
        header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
        header('Content-Disposition: attachment;filename="' . $filename . '"');
        header('Cache-Control: max-age=0');

        $writer = new \PhpOffice\PhpSpreadsheet\Writer\Xlsx($spreadsheet);
        $writer->save('php://output');
        exit;
    }
}