<?php

namespace App\Http\Controllers\Admin;

use App\Exports\BaseExport;
use App\Helpers\ResponseCode;
use App\Models\CustomForm;
use App\Models\CustomFormField;
use App\Models\CustomFormFieldUpdate;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Validator;
use Maatwebsite\Excel\Facades\Excel;
use Rap2hpoutre\FastExcel\FastExcel;

class BaseController extends CommonController
{
    protected $model;

    /**
     * CommonController构造函数
     *
     * @param object $model 要操作的模型
     */
    public function __construct($model)
    {
        $this->model = $model;
    }

    /**
     * @OA\Get(
     *     path="/api/admin/{table_name}/index",
     *     tags={"通用接口"},
     *     summary="列表",
     *     description="",
     *     @OA\Parameter(name="is_export", in="query", @OA\Schema(type="string"), required=false, description="是否导出0否1是"),
     *     @OA\Parameter(name="export_fields", in="query", @OA\Schema(type="string"), required=false, description="需要导出的字段数组"),
     *     @OA\Parameter(name="filter", in="query", @OA\Schema(type="string"), required=false, description="查询条件。数组"),
     *     @OA\Parameter(name="show_relation", in="query", @OA\Schema(type="string"), required=false, description="需要输出的关联关系数组，填写输出指定数据"),
     *     @OA\Parameter(name="page_size", in="query", @OA\Schema(type="string"), required=false, description="每页显示的条数"),
     *     @OA\Parameter(name="page", in="query", @OA\Schema(type="string"), required=false, description="页码"),
     *     @OA\Parameter(name="sort_name", in="query", @OA\Schema(type="string"), required=false, description="排序字段名字"),
     *     @OA\Parameter(name="sort_type", in="query", @OA\Schema(type="string"), required=false, description="排序类型"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function index()
    {
        $all = request()->all();
        $list = $this->model->with(underlineToHump($all['show_relation'] ?? []))->where(function ($query) use ($all) {
            if (isset($all['filter']) && !empty($all['filter'])) {
                foreach ($all['filter'] as $condition) {
                    $key = $condition['key'] ?? null;
                    $op = $condition['op'] ?? null;
                    $value = $condition['value'] ?? null;
                    if (!isset($key) || !isset($op) || !isset($value)) {
                        continue;
                    }
                    // 等于
                    if ($op == 'eq') {
                        $query->where($key, $value);
                    }
                    // 不等于
                    if ($op == 'neq') {
                        $query->where($key, '!=', $value);
                    }
                    // 大于
                    if ($op == 'gt') {
                        $query->where($key, '>', $value);
                    }
                    // 大于等于
                    if ($op == 'egt') {
                        $query->where($key, '>=', $value);
                    }
                    // 小于
                    if ($op == 'lt') {
                        $query->where($key, '<', $value);
                    }
                    // 小于等于
                    if ($op == 'elt') {
                        $query->where($key, '<=', $value);
                    }
                    // 模糊搜索
                    if ($op == 'like') {
                        $query->where($key, 'like', '%' . $value . '%');
                    }
                    // 否定模糊搜索
                    if ($op == 'notlike') {
                        $query->where($key, 'not like', '%' . $value . '%');
                    }
                    // null搜索
                    if ($op == 'null') {
                        $query->whereNull($key);
                    }
                    // notnull搜索
                    if ($op == 'notnull') {
                        $query->whereNotNull($key);
                    }
                    // 范围搜索
                    if ($op == 'range') {
                        list($from, $to) = explode(',', $value);
                        if (empty($from) || empty($to)) {
                            continue;
                        }
                        $query->whereBetween($key, [$from, $to]);
                    }
                }
            }
        })->orderBy($all['sort_name'] ?? 'id', $all['sort_type'] ?? 'desc');
        if (isset($all['is_export']) && !empty($all['is_export'])) {
            $list = $list->get()->toArray();
            $export_fields = $all['export_fields'] ?? [];
            // 导出文件名字
            $tableName = $this->model->getTable();
            $filename = (new CustomForm())->getTableComment($tableName);
            return Excel::download(new BaseExport($export_fields, $list, $tableName), $filename . date('YmdHis') . '.xlsx');
        } else {
            // 输出
            $list = $list->paginate($all['page_size'] ?? 20);
        }
        return $this->success($list);
    }

    /**
     * @OA\Get(
     *     path="/api/admin/{table_name}/show",
     *     tags={"通用接口"},
     *     summary="详情",
     *     description="",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="string"), required=true, description="id"),
     *     @OA\Parameter(name="show_relation", in="query", @OA\Schema(type="string"), required=false, description="需要输出的关联关系数组，填写输出指定数据"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function show()
    {
        $all = \request()->all();
        $messages = [
            'id.required' => 'Id必填',
        ];
        $validator = Validator::make($all, [
            'id' => 'required'
        ], $messages);
        if ($validator->fails()) {
            return $this->fail([ResponseCode::ERROR_PARAMETER, implode(',', $validator->errors()->all())]);
        }
        $detail = $this->model->with(underlineToHump($all['show_relation'] ?? []))->find($all['id']);
        return $this->success($detail);
    }

    /**
     * @OA\Post(
     *     path="/api/admin/{table_name}/save",
     *     tags={"通用接口"},
     *     summary="更新",
     *     description="",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="int"), required=true, description="Id(存在更新，不存在新增)"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function save()
    {
        $all = \request()->all();
        DB::beginTransaction();
        try {
            if (isset($all['id'])) {
                $model = $this->model->find($all['id']);
                if (empty($model)) {
                    return $this->fail([ResponseCode::ERROR_BUSINESS, '数据不存在']);
                }
            } else {
                $model = $this->model;
                $all['admin_id'] = $this->getUserId();
                $all['department_id'] = $this->getUser()->department_id;
            }
            $original = $model->getOriginal();
            $model->fill($all);
            $model->save();
            DB::commit();
            // 记录日志
            $this->saveLogs($original, $model);
            return $this->success($model);
        } catch (\Exception $exception) {
            DB::rollBack();
            return $this->fail([$exception->getCode(), $exception->getMessage()]);
        }
    }

    /**
     * @OA\Get(
     *     path="/api/admin/{table_name}/destroy",
     *     tags={"通用接口"},
     *     summary="删除",
     *     description="",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="string"), required=true, description="id"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function destroy()
    {
        $all = \request()->all();
        $messages = [
            'id.required' => 'Id必填',
        ];
        $validator = Validator::make($all, [
            'id' => 'required'
        ], $messages);
        if ($validator->fails()) {
            return $this->fail([ResponseCode::ERROR_PARAMETER, implode(',', $validator->errors()->all())]);
        }
        $model = $this->model->find($all['id']);
        if (empty($model)) {
            return $this->fail([ResponseCode::ERROR_BUSINESS, '数据不存在']);
        }
        $model->delete();
        // 记录日志
        $this->saveLogs('delete', $model);
        return $this->success('删除成功');
    }

    /**
     * @OA\Post(
     *     path="/api/admin/{table_name}/excel-show",
     *     tags={"通用接口"},
     *     summary="导入预览",
     *     description="",
     *     @OA\Parameter(name="data", in="query", @OA\Schema(type="string"), required=true, description="统一数据键值对数组"),
     *     @OA\Parameter(name="file", in="query", @OA\Schema(type="string"), required=true, description="文件"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function excelShow()
    {
        $file = \request()->file('file');
        $data = \request('data', []);
        //判断文件是否有效
        if (!(\request()->hasFile('file') && $file->isValid())) {
            return $this->fail([ResponseCode::ERROR_BUSINESS, '文件不存在或无效']);
        }
        //获取文件大小
        $img_size = floor($file->getSize() / 1024);
        if ($img_size >= 50 * 1024) {
            return $this->fail([ResponseCode::ERROR_BUSINESS, '文件必须小于50M']);
        }
        //过滤文件后缀
        $ext = $file->getClientOriginalExtension();
        if (!in_array($ext, ['xls', 'xlsx', 'csv'])) {
            return $this->fail([ResponseCode::ERROR_BUSINESS, '仅支持xls/xlsx/csv格式']);
        }
        $tempFile = $file->getRealPath();
        $dataArray = (new FastExcel)->import($tempFile)->toArray();
        // 数据过滤，只能导入数据表有的字段
        $tableName = $this->model->getTable();
        $rowTableFieldByComment = (new CustomFormField)->getRowTableFieldsByComment($tableName);
        $list = [];
        foreach ($dataArray as $key => $value) {
            foreach ($rowTableFieldByComment as $k => $v) {
                if (isset($value[$v])) {
                    $list[$key][$k] = $value[$v];
                }
            }
            $list[$key] = array_merge($list[$key], $data);
        }
        return $this->success($list);
    }

    /**
     * @OA\Post(
     *     path="/api/admin/{table_name}/import",
     *     tags={"通用接口"},
     *     summary="导入",
     *     description="",
     *     @OA\Parameter(name="data", in="query", @OA\Schema(type="string"), required=true, description="导入分析获取到的二维数组"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function import()
    {
        $all = \request()->all();
        $messages = [
            'data.required' => '数据必填',
        ];
        $validator = Validator::make($all, [
            'data' => 'required',
        ], $messages);
        if ($validator->fails()) {
            return $this->fail([ResponseCode::ERROR_PARAMETER, implode(',', $validator->errors()->all())]);
        }
        $records = $all['data'];
        DB::beginTransaction();
        try {
            // 获取数据表的所有字段
            $tableName = $this->model->getTable();
            $existingColumns = (new CustomFormField)->getRowTableFieldsByComment($tableName);
            // 过滤掉不存在的字段
            $filteredRecords = array_map(function ($record) use ($existingColumns) {
                return array_intersect_key($record, $existingColumns);
            }, $records);
            // 去除空数据
            $filteredRecords = array_filter($filteredRecords);
            // 分段导入
            foreach (array_chunk($filteredRecords, 500) as $chunk) {
                $this->model->insert($chunk);
            }
            DB::commit();
            return $this->success(['total' => count($records), 'filter_total' => count($filteredRecords)]);
        } catch (\Exception $exception) {
            DB::rollBack();
            return $this->fail([$exception->getCode(), $exception->getMessage()]);
        }
    }

    /**
     * 创建/更新/删除字段数据记录
     * @param $original  原数据
     * @param $model  新数据
     * @return mixed
     */
    protected function saveLogs($original, $model)
    {
        $user = $this->getUser();
        $tableName = $this->model->getTable();
        $fileds = (new CustomFormField())->getRowTableFieldsByComment($tableName);
        $list = [];
        if (empty($original)) {
            $operate = '新建';
            // 新增
            foreach ($model->toArray() as $key => $item) {
                $list[] = json_encode(($fileds[$key] ?? $key), JSON_UNESCAPED_UNICODE) . "：" . json_encode($item, JSON_UNESCAPED_UNICODE);
            }
        } elseif ($original == 'delete') {
            $operate = '删除';
        } else {
            // 更新
            $operate = '更新';
            $changes = $model->getChanges();
            // 修改了内容
            foreach ($changes as $key => $item) {
                if (in_array($key, ['updated_at'])) continue;
                if (isset($original[$key])) {
                    $list[] = json_encode(($fileds[$key] ?? $key), JSON_UNESCAPED_UNICODE) . "：" . json_encode($original[$key], JSON_UNESCAPED_UNICODE) . "=>" . json_encode($item, JSON_UNESCAPED_UNICODE);
                }
            }
        }
        return CustomFormFieldUpdate::create([
            'table_name' => $tableName,
            'admin_id' => $user->id,
            'operate' => $operate,
            'table_id' => $model->id,
            'department_id' => $user->department_id ?? 0,
            'ip' => $_SERVER['REMOTE_ADDR'],
            'content' => implode('。', $list),
            'requst_data' => json_encode(request()->all(), JSON_UNESCAPED_UNICODE)
        ]);
    }

}