<?php

namespace App\Service;

use App\Model\Employee;
use App\Model\UserGuide;
use App\Model\UserGuideDetails;
use Illuminate\Support\Facades\DB;

class UserGuideService extends Service
{
    public function edit($data,$user){
        list($status,$msg) = $this->uRule($data, $user, false);
        if(!$status) return [$status,$msg];

        try {
            DB::beginTransaction();

            $model = UserGuide::where('id',$data['id'])->first();
            $model->title = $data['title'] ?? '';
            $model->save();

            $time = time();
            $old = UserGuideDetails::where('del_time',0)
                ->where('user_guide_id',$data['id'])
                ->whereIn('type',[UserGuideDetails::type_two])
                ->pluck('content')
                ->all();
            UserGuideDetails::where('del_time',0)
                ->where('user_guide_id', $data['id'])
                ->update(['del_time' => $time]);

            list($new, $old) = $this->saveDetail($model->id, $time, $data, $old);

            DB::commit();
        }catch (\Exception $exception){
            DB::rollBack();
            return [false,$exception->getMessage()];
        }

        return [true, ['file' => ['new' => $new, 'old' => $old]]];
    }

    public function add($data,$user){
        list($status,$msg) = $this->uRule($data, $user);
        if(!$status) return [$status,$msg];

        try {
            DB::beginTransaction();

            $model = new UserGuide();
            $model->title = $data['title'] ?? '';
            $model->crt_id = $user['id'];
            $model->save();

            $time = time();
            $this->saveDetail($model->id, $time, $data);
            list($new) = $this->saveDetail($model->id, $time, $data);

            DB::commit();
        }catch (\Exception $exception){
            DB::rollBack();
            return [false,$exception->getMessage()];
        }

        return [true, ['file' => ['new' => $new]]];
    }

    private function saveDetail($id, $time, $data, $old = []){
        $oldMap = array_flip($old);
        $insert = [];
        $new = [];

        foreach ($data['details'] as $value) {
            $content = $value['content'];
            $type = $value['type'];

            // 构造插入数据
            $insert[] = [
                'user_guide_id' => $id,
                'content'       => $content,
                'type'          => $type,
                'sort'          => $value['sort'],
                'crt_time'      => $time,
            ];

            // 处理 type_two 的逻辑
            if ($type == UserGuideDetails::type_two) {
                if (isset($oldMap[$content])) {
                    // 如果存在，从 map 中移除，等同于原逻辑的 unset
                    unset($oldMap[$content]);
                } else {
                    // 如果不存在，记录为新内容
                    $new[] = $content;
                }
            }
        }
        $old = array_keys($oldMap);

        if(! empty($insert)) UserGuideDetails::insert($insert);

        return [$new, $old];
    }

    private function getDetail($id){
        // 查所有数据
        $all = UserGuideDetails::where('user_guide_id', $id)
            ->where('del_time', 0)
            ->orderBy('sort','asc')
            ->get()
            ->toArray();

        $fileUploadService = new FileUploadService();
        foreach ($all as $key => $value){
            $url = "";
            if($value['type'] == UserGuideDetails::type_two && $value['content']) $url = $fileUploadService->getFileShow($value['content']);
            $all[$key]['show_content'] = $url;
        }

        return $all;
    }

    public function del($data){
        if($this->isEmpty($data,'id')) return [false,'请选择数据！'];

        try {
            DB::beginTransaction();
            $time = time();

            UserGuide::where('del_time',0)
                ->whereIn('id',$data['id'])
                ->update(['del_time' => $time]);

            $old = UserGuideDetails::where('del_time',0)
                ->whereIn('user_guide_id',$data['id'])
                ->whereIn('type',[UserGuideDetails::type_two])
                ->pluck('content')
                ->all();

            UserGuideDetails::where('del_time',0)
                ->whereIn('user_guide_id', $data['id'])
                ->update(['del_time' => $time]);

            DB::commit();
        }catch (\Exception $exception){
            DB::rollBack();
            return [false,$exception->getMessage()];
        }

        return [true, ['file' => ['old' => $old]]];
    }

    public function detail($data,$user){
        if($this->isEmpty($data,'id')) return [false,'请选择数据！'];
        $customer = UserGuide::where('del_time',0)
            ->where('id',$data['id'])
            ->first();
        if(empty($customer)) return [false,'用户指南不存在或已被删除'];
        $customer = $customer->toArray();

        $details = $this->getDetail($customer['id']);
        $customer['details'] = $details;
        $customer['crt_name'] = Employee::where('id',$customer['crt_id'])->value('emp_name');
        $customer['crt_time'] = $customer['crt_time'] ? date("Y-m-d H:i:s",$customer['crt_time']): '';

        return [true, $customer];
    }

    public function uCommon($data,$user, $field = []){
        if(empty($field)) $field = UserGuide::$field;

        $model = UserGuide::where('del_time',0)
            ->select($field)
            ->orderby('id', 'desc');

        if(! empty($data['title'])) $model->where('title', 'LIKE', '%'.$data['title'].'%');
        if(! empty($data['id'])) $model->whereIn('id', $data['id']);
        if(! empty($data['crt_time'][0]) && ! empty($data['crt_time'][1])) {
            $return = $this->changeDateToTimeStampAboutRange($data['crt_time']);
            $model->where('crt_time','>=',$return[0]);
            $model->where('crt_time','<=',$return[1]);
        }

        return $model;
    }

    public function list($data,$user){
        $model = $this->uCommon($data, $user);
        $list = $this->limit($model,'',$data);
        $list = $this->fillData($list,$user);

        return [true, $list];
    }

    public function uRule(&$data, $user, $is_add = true){
        if(empty($data['title'])) return [false, '用户指南名称不能为空'];
        if(empty($data['details'])) return [false, '评价明细不能为空'];
        foreach ($data['details'] as $key => $value) {
            $rowNum = $key + 1;
            if (empty($value['type']) || ! in_array($value['type'], UserGuideDetails::$type)) return [false, "第{$rowNum}行的图文类型不能为空或类型错误"];
            if (empty($value['content'])) return [false, "第{$rowNum}行的内容不能为空"];
        }

        if($is_add){
            $bool = UserGuide::where('title',$data['title'])
                ->where('del_time',0)
                ->exists();
        }else{
            if(empty($data['id'])) return [false,'ID不能为空'];
            $bool = UserGuide::where('title',$data['title'])
                ->where('id','<>',$data['id'])
                ->where('del_time',0)
                ->exists();
        }
        if($bool) return [false,'用户指南名称已存在'];

        return [true, ''];
    }

    public function fillData($data, $user){
        if(empty($data['data'])) return $data;

        $emp = (new EmployeeService())->getEmployeeMap(array_unique(array_column($data['data'],'crt_id')));
        foreach ($data['data'] as $key => $value){
            $data['data'][$key]['crt_time'] = $value['crt_time'] ? date('Y-m-d H:i:s',$value['crt_time']) : '';
            $data['data'][$key]['crt_name'] = $emp[$value['crt_id']] ?? '';
        }

        return $data;
    }
}