<?php

namespace app\admin\controller;

use app\admin\BaseController;
use think\facade\Filesystem;
use think\facade\Request;
use think\facade\Db;
use think\Response;

use app\model\FilesCategory;
use app\model\Files;

class FileController extends BaseController
{
    // 文件类型映射
    protected $fileTypes = [
        'image' => 1,
        'document' => 2,
        'video' => 3,
        'audio' => 4
    ];

    // 允许的文件类型
    protected $allowedExtensions = [
        'image' => ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp'],
        'document' => ['pdf', 'doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'txt'],
        'video' => ['mp4', 'webm', 'mov'],
        'audio' => ['mp3', 'wav', 'ogg']
    ];

    // 获取所有文件
    public function getAllFiles()
    {
        try {
            $page = Request::param('page/d', 1);
            $pageSize = Request::param('pageSize/d', 10);
            $cate = Request::param('cate/d', 0);
            $keyword = Request::param('keyword/s', '');

            $query = Files::where('delete_time', null);

            if ($cate) {
                $query->where('cate', $cate);
            }

            if ($keyword) {
                $query->whereLike('name', "%{$keyword}%");
            }

            $total = $query->count();
            $list = $query->page($page, $pageSize)
                ->order('create_time', 'desc')
                ->select();

            return json([
                'code' => 200,
                'msg' => 'success',
                'data' => [
                    'list' => $list,
                    'total' => $total,
                    'page' => $page,
                    'pageSize' => $pageSize
                ]
            ]);
        } catch (\Exception $e) {
            return json([
                'code' => 500,
                'msg' => '获取文件列表失败: ' . $e->getMessage()
            ]);
        }
    }

    //获取用户分类
    public function getUserCate()
    {
        try {
            $cate = FilesCategory::where('delete_time', null)->field('id,name')->select();

            // 获取每个分类下的文件数量
            foreach ($cate as &$c) {
                $c['total'] = Files::where('cate', $c['id'])->where('delete_time', null)->count();
            }

            return json([
                'code' => 200,
                'msg' => 'success',
                'data' => $cate
            ]);
        } catch (\Exception $e) {
            return json([
                'code' => 500,
                'msg' => '获取用户分类失败: ' . $e->getMessage()
            ]);
        }
    }

    //新建文件分组
    public function createFileCate()
    {
        try {
            $data = Request::param();
            $data['create_time'] = date('Y-m-d H:i:s');
            $id = FilesCategory::insertGetId($data);

            // 记录操作日志
            $this->logSuccess('文件管理', '创建文件分组', ['id' => $id]);

            return json([
                'code' => 200,
                'msg' => '新建文件分组成功',
                'data' => [
                    'id' => $id
                ]
            ]);
        } catch (\Exception $e) {
            // 记录失败日志
            $this->logFail('文件管理', '创建文件分组', $e->getMessage());

            return json([
                'code' => 500,
                'msg' => '新建文件分组失败: ' . $e->getMessage()
            ]);
        }
    }

    //重命名文件分组
    public function renameFileCate($id)
    {
        try {
            $data = Request::param();
            $result = FilesCategory::where('id', $id)->update(['name' => $data['name']]);
            // 记录操作日志
            $this->logSuccess('文件管理', '重命名文件分组', ['id' => $id]);
            return json([
                'code' => 200,
                'msg' => '重命名文件分组成功'
            ]);
        } catch (\Exception $e) {
            // 记录失败日志
            $this->logFail('文件管理', '重命名文件分组', $e->getMessage());
            return json([
                'code' => 500,
                'msg' => '重命名文件分组失败: ' . $e->getMessage()
            ]);
        }
    }

    //删除文件分组
    public function deleteFileCate($id)
    {
        try {
            $result = FilesCategory::where('id', $id)->update(['delete_time' => date('Y-m-d H:i:s')]);
            // 记录操作日志
            $this->logSuccess('文件管理', '删除文件分组', ['id' => $id]);
            return json([
                'code' => 200,
                'msg' => '删除文件分组成功'
            ]);
        } catch (\Exception $e) {
            // 记录失败日志
            $this->logFail('文件管理', '删除文件分组', $e->getMessage());
            return json([
                'code' => 500,
                'msg' => '删除文件分组失败: ' . $e->getMessage()
            ]);
        }
    }

    //获取分类文件
    public function getCateFiles(int $id)
    {
        try {
            $page = Request::param('page/d', 1);
            $pageSize = Request::param('pageSize/d', 10);
            $keyword = Request::param('keyword/s', '');

            $query = Files::where('cate', $id)->where('delete_time', null);

            if ($keyword) {
                $query->whereLike('name', "%{$keyword}%");
            }

            $list = $query->page($page, $pageSize)
                ->order('create_time', 'desc')
                ->select();

            // 格式化文件信息
            foreach ($list as &$file) {
                $file['createTime'] = $file['create_time'];
                $file['groupId'] = $file['cate'];
                $file['url'] = $file['src'];
            }
            return json([
                'code' => 200,
                'msg' => 'success',
                'data' => [
                    'list' => $list,
                    'page' => $page,
                    'pageSize' => $pageSize,
                    'categoryId' => $id
                ]
            ]);
        } catch (\Exception $e) {
            return json([
                'code' => 500,
                'msg' => '获取分类文件失败: ' . $e->getMessage()
            ]);
        }
    }

    public function uploadFile()
    {
        try {
            $file = Request::file('file');
            if (!$file) {
                return json(['code' => 400, 'msg' => '请选择要上传的文件']);
            }

            // 验证文件大小和类型
            $maxSize = 50 * 1024 * 1024; // 50MB
            $fileExt = strtolower($file->getOriginalExtension());

            if ($file->getSize() > $maxSize) {
                return json(['code' => 400, 'msg' => '文件大小不能超过50MB']);
            }

            // 计算文件MD5
            $fileMd5 = md5_file($file->getRealPath());

            // 检查是否已存在相同文件
            $existFile = Files::where('md5', $fileMd5)->where('delete_time', null)->find();

            if ($existFile) {
                return json([
                    'code' => 201,
                    'msg' => '文件已存在',
                    'data' => [
                        'url' => $existFile['src'],
                        'id' => $existFile['id'],
                        'name' => $existFile['name']
                    ]
                ]);
            }

            // 确定文件类型
            $fileType = 2; // 默认为文件
            foreach ($this->allowedExtensions as $type => $extensions) {
                if (in_array($fileExt, $extensions)) {
                    $fileType = $this->fileTypes[$type];
                    break;
                }
            }

            $cate = Request::param('cate/d', 0);
            // 生成按日期分类的目录结构
            $datePath = date('Y/m/d');
            $saveName = $datePath . '/' . uniqid() . '.' . $fileExt;
            $fullPath = Filesystem::disk('public')->putFileAs('uploads', $file, $saveName);
            $fileUrl = '/storage/' . str_replace('\\', '/', $fullPath);

            // 获取当前登录用户ID
            $userId = Request::middleware('user_id', '');

            // 保存文件信息到数据库
            $fileData = [
                'name' => $file->getOriginalName(),
                'type' => $fileType,
                'cate' => $cate,
                'size' => $file->getSize(),
                'src' => $fileUrl,
                'md5' => $fileMd5,
                'uploader' => $userId,
                'create_time' => date('Y-m-d H:i:s'),
            ];

            $fileId = Files::insertGetId($fileData);

            // 记录操作日志
            $this->logSuccess('文件管理', '上传文件', ['id' => $fileId]);
            return json([
                'code' => 200,
                'msg' => '上传成功',
                'data' => [
                    'url' => $fileUrl,
                    'id' => $fileId,
                    'name' => $fileData['name']
                ]
            ]);
        } catch (\Exception $e) {
            // 记录失败日志
            $this->logFail('文件管理', '上传文件', $e->getMessage());
            return json([
                'code' => 500,
                'msg' => '上传失败: ' . $e->getMessage()
            ]);
        }
    }

    // 更新文件信息
    public function updateFile($id)
    {
        try {
            $data = Request::only(['name', 'cate']);
            if (empty($data)) {
                return json(['code' => 400, 'msg' => '无更新数据']);
            }

            $data['update_time'] = date('Y-m-d H:i:s');

            $result = Files::where('id', $id)->where('delete_time', null)->update($data);

            if ($result) {
                // 记录操作日志
                $this->logSuccess('文件管理', '更新文件', ['id' => $id]);
                return json(['code' => 200, 'msg' => '更新成功']);
            }

            return json(['code' => 404, 'msg' => '文件不存在']);
        } catch (\Exception $e) {
            // 记录失败日志
            $this->logFail('文件管理', '更新文件', $e->getMessage());
            return json(['code' => 500, 'msg' => '更新失败: ' . $e->getMessage()]);
        }
    }

    // 删除文件
    public function deleteFile($id)
    {
        try {
            $result = Files::where('id', $id)->update(['delete_time' => date('Y-m-d H:i:s')]);

            if ($result) {
                // 记录操作日志
                $this->logSuccess('文件管理', '删除文件', ['id' => $id]);
                return json(['code' => 200, 'msg' => '删除成功']);
            }

            return json(['code' => 404, 'msg' => '文件不存在']);
        } catch (\Exception $e) {
            // 记录失败日志
            $this->logFail('文件管理', '删除文件', $e->getMessage());
            return json(['code' => 500, 'msg' => '删除失败: ' . $e->getMessage()]);
        }
    }

    // 下载文件
    public function download($id)
    {
        try {
            $file = Files::where('id', $id)->where('delete_time', null)->find();

            if (!$file) {
                return json(['code' => 404, 'msg' => '文件不存在']);
            }

            $filePath = public_path() . $file['src'];

            if (!file_exists($filePath)) {
                return json(['code' => 404, 'msg' => '文件不存在']);
            }

            return download($filePath, $file['name']);
        } catch (\Exception $e) {
            // 记录失败日志
            $this->logFail('文件管理', '下载文件', $e->getMessage());
            return json(['code' => 500, 'msg' => '下载失败: ' . $e->getMessage()]);
        }
    }

    // 移动文件
    public function moveFile($id)
    {
        try {
            $cate = Request::param('cate/d', 0);
            $result = Files::where('id', $id)->update(['cate' => $cate]);
            if ($result) {
                // 记录操作日志
                $this->logSuccess('文件管理', '移动文件', ['id' => $id]);
                return json(['code' => 200, 'msg' => '移动成功']);
            }

            return json(['code' => 404, 'msg' => '文件不存在']);
        } catch (\Exception $e) {
            // 记录失败日志
            $this->logFail('文件管理', '移动文件', $e->getMessage());
            return json(['code' => 500, 'msg' => '移动失败: ' . $e->getMessage()]);
        }
    }
}