<?php

namespace app\admin\controller;

use app\admin\model\Invoice as InvoiceModel;
use app\admin\model\InvoiceLog;
use app\common\server\UrlServer;
use think\Db;

class Invoice extends AdminBase
{
    /**
     * 发票列表
     */
    public function lists()
    {
        if ($this->request->isAjax()) {
            $get = $this->request->get();
            
            // 构建查询条件
            $where = [];
            if (!empty($get['keyword'])) {
                $where[] = ['oid|invoice_id', 'like', '%' . $get['keyword'] . '%'];
            }
            if (isset($get['state']) && $get['state'] !== '') {
                $where[] = ['state', '=', intval($get['state'])];
            }
            
            // 查询数据（关联订单表获取订单编号）
            $list = Db::name('invoice_log')
                ->where($where)
                ->order('state asc')
                ->select();
            
            // 格式化数据
            $currentDomain = $_SERVER['HTTP_HOST'];
            $result = [];
            foreach ($list as $item) {
                $result[] = [
                    'id' => $item['id'] ?? 0,
                    'invoice_id' => $item['invoice_id'] ?? 0,
                    'oid' => $item['oid'] ?? 0,
                    'state' => $item['state'] ?? 1,
                    'document' => "http://".$currentDomain."/public/".$item['document'] ?? '',
                    'create_time' => $item['create_time'] ?? '',
                    'update_time' => $item['update_time'] ?? '',
                ];
            }
            
            $data = [
                'count' => count($result),
                'lists' => $result
            ];
            
            $this->_success('', $data);
        }
        return $this->fetch();
    }

    /**
     * 查看详情
     */
    public function info()
    {
        $id = $this->request->param('id', 0);
        if (empty($id)) {
            $this->_error('参数错误');
        }
        
        $invoice = InvoiceLog::with([
                "order" => function ($query) {
                    $query->field('id, order_sn');
                },
                "invoice" => function ($query) {
                    $query->with('user');
                },
            ])
            ->where('id', $id)
            ->find();
        if (empty($invoice)) {
            $this->_error('数据不存在');
        }
        
        // 处理文件路径（转换为完整URL）
        $currentDomain = $_SERVER['HTTP_HOST'];
        if (!empty($invoice['document'])) {
            $invoice['document_url'] = "http://".$currentDomain."/public/".$invoice['document'];
        }
        
        $this->assign([
            'invoice' => $invoice,
        ]);
        
        return $this->fetch();
    }

    /**
     * 上传
     */
    public function edit()
    {
        $id = $this->request->param('id', 0);
        if (empty($id)) {
            $this->_error('参数错误');
        }
        
        if ($this->request->isAjax() && $this->request->isPost()) {
            $post = $this->request->post();
            
            // 表单验证
            if (empty($post['invoice_id'])) {
                $this->_error('请输入发票信息ID');
            }
            if (empty($post['document'])){
                $this->_error('请上传发票文件');
            }
            $data = [
                'state' => $post['state'],
                'document' => $post['document'],
                'update_time' => date('Y-m-d H:i:s', time()),
            ];
            
            // 更新数据
            $result = Db::name('invoice_log')->where('id', $id)->update($data);
            
            if ($result) {
                $this->_success('上传成功');
            } else {
                $this->_error('上传失败');
            }
        }
        
        // 查询订单列表
        $orders = Db::name('order')
            ->where('order_status', '>', 0)
            ->field('id, order_sn')
            ->order('id desc')
            ->limit(100)
            ->select();


        $invoice = InvoiceLog::with(['invoice'])->where('id',$id)->find();
        // 处理文件路径（转换为完整URL用于显示）
        if (!empty($invoice['document'])) {
            $currentDomain = $_SERVER['HTTP_HOST'];
            $invoice['document'] = 'http://'.$currentDomain.'/public/'.$invoice['document'];
        }
        $this->assign([
            'invoice' => $invoice,
            'orders' => $orders,
        ]);
        return $this->fetch();
    }

    /**
     * 删除
     */
    public function del()
    {
        if ($this->request->isAjax() && $this->request->isPost()) {
            $id = $this->request->post('id', 0);
            if (empty($id)) {
                $this->_error('参数错误');
            }
            
            // 检查数据是否存在
            $invoice = Db::name('invoice_log')->where('id', $id)->find();
            if (empty($invoice)) {
                $this->_error('数据不存在');
            }
            
            // 删除数据
            $result = Db::name('invoice_log')->where('id', $id)->delete();
            
            if ($result) {
                $this->_success('删除成功');
            } else {
                $this->_error('删除失败');
            }
        } else {
            $this->_error('请求方式错误');
        }
    }

    /**
     * 上传发票文件
     */
    public function upload()
    {
        if ($this->request->isPost()) {
            $file = $this->request->file('file');
            if (empty($file)) {
                $this->_error('请选择文件');
            }
            
            // 获取文件信息
            $fileInfo = $file->getInfo();
            $fileName = $fileInfo['name'] ?? '';
            
            // 验证文件类型（PDF）- 从文件名获取扩展名（最可靠的方法）
            $ext = '';
            if (!empty($fileName)) {
                // 使用pathinfo获取扩展名，支持中文文件名
                $ext = strtolower(pathinfo($fileName, PATHINFO_EXTENSION));
            }
            
            // 如果从文件名获取失败，尝试从MIME类型判断
            if (empty($ext) && isset($fileInfo['type'])) {
                $mimeType = strtolower($fileInfo['type']);
                if (strpos($mimeType, 'pdf') !== false || $mimeType === 'application/pdf') {
                    $ext = 'pdf';
                }
            }
            
            // 验证扩展名
            if (empty($ext) || $ext !== 'pdf') {
                $this->_error('只支持PDF格式文件，当前文件：' . $fileName . '，扩展名：' . ($ext ?: '未知'));
            }
            
            // 设置验证规则
            $file->validate(['ext' => 'pdf']);
            
            // 上传文件
            $uploadPath = rtrim(ROOT_PATH, '/\\') . '/public/uploads/invoice';
            $info = $file->move($uploadPath);
            if ($info) {
                // 返回文件路径（相对路径）
                $filePath = 'uploads/invoice/' . $info->getSaveName();
                $this->_success('上传成功', ['path' => $filePath]);
            } else {
                $errorMsg = $file->getError();
                $this->_error('上传失败：' . ($errorMsg ?: '未知错误'));
            }
        } else {
            $this->_error('请求方式错误');
        }
    }
}