<?php

namespace App\Service;

use App\Model\Device;
use App\Model\Employee;
use App\Model\Item;
use App\Model\ItemDetails;
use Illuminate\Support\Facades\DB;

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

        try {
            DB::beginTransaction();

            $model = Item::where('id',$data['id'])->first();
            $model->code = $data['code'] ?? '';
            $model->title = $data['title'] ?? '';
            $model->mark = $data['mark'] ?? "";
            $model->start_time = $data['start_time'] ?? 0;
            $model->end_time = $data['end_time'] ?? 0;
            $model->state = $data['state'] ?? 0;
            $model->save();

            $time = time();
            ItemDetails::where('del_time',0)
                ->where('item_id', $model->id)
                ->update(['del_time' => $time]);
            $this->saveDetail($model->id, $time, $data);

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

        return [true, ''];
    }

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

        try {
            DB::beginTransaction();

            $model = new Item();
            $model->code = $data['code'] ?? '';
            $model->title = $data['title'] ?? '';
            $model->mark = $data['mark'] ?? "";
            $model->start_time = $data['start_time'] ?? 0;
            $model->end_time = $data['end_time'] ?? 0;
            $model->state = $data['state'] ?? 0;
            $model->crt_id = $user['id'];
            $model->top_depart_id = $data['top_depart_id'];
            $model->save();

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

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

        return [true, ''];
    }

    private function saveDetail($id, $time, $data){
        if(! empty($data['man_list'])){
            $unit = [];
            foreach ($data['man_list'] as $value){
                $unit[] = [
                    'item_id' => $id,
                    'type' => $value['type'],
                    'data_id' => $value['data_id'],
                    'crt_time' => $time,
                    'top_depart_id' => $value['top_depart_id'],
                ];
            }
            if(! empty($unit)) ItemDetails::insert($unit);
        }

        if(! empty($data['device_list'])){
            $receipt = [];
            foreach ($data['device_list'] as $value){
                $receipt[] = [
                    'item_id' => $id,
                    'type' => $value['type'],
                    'data_id' => $value['data_id'],
                    'crt_time' => $time,
                    'top_depart_id' => $value['top_depart_id'],
                ];
            }
            if(! empty($receipt)) ItemDetails::insert($receipt);
        }
    }

    private function getDetail($id){
        $data = ItemDetails::where('del_time',0)
            ->where('item_id', $id)
            ->get()->toArray();

        $id = $id2 = [];
        foreach ($data as $value){
            if($value['type'] == ItemDetails::type_one) {
                $id[] = $value['data_id'];
            }else{
                $id2[] = $value['data_id'];
            }
        }
        $map = Employee::whereIn('id', $id)->select('title','id','number')->get()->toArray();
        $map = array_column($map,null,'id');
        $map2 = Device::whereIn('id', $id2)->select('code','id','title')->get()->toArray();
        $map2 = array_column($map2,null,'id');

        $unit = $receipt = [];
        foreach ($data as $value){
            if($value['type'] == ItemDetails::type_one) {
                $tmp = $map[$value['data_id']] ?? [];
                $unit[] = [
                    'type' => $value['type'],
                    'data_id' => $value['data_id'],
                    'data_title' => $tmp['title'],
                    'data_code' => $tmp['number'],
                ];
            }else{
                $tmp = $map2[$value['data_id']] ?? [];
                $receipt[] = [
                    'type' => $value['type'],
                    'data_id' => $value['data_id'],
                    'data_title' => $tmp['title'] ?? "",
                    'data_code' => $tmp['code'] ?? "",
                ];
            }
        }

        $detail = [
            'man_list' => $unit,
            'device_list' => $receipt,
        ];

        foreach ($detail as $key => $value) {
            if (empty($value)) {
                $detail[$key] = (object)[]; // 转成 stdClass 对象
            }
        }

        return $detail;
    }

    public function getItemMap($ids){
        if(empty($ids)) return [];
        if(! is_array($ids)) $ids = [$ids];

        return Item::whereIn('id', $ids)
            ->pluck('title', 'id')
            ->toArray();
    }

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

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

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

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

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

        return [true, ''];
    }

    public function itemDetail($data, $user){
        if($this->isEmpty($data,'id')) return [false,'请选择数据！'];
        $customer = Item::where('del_time',0)
            ->where('id',$data['id'])
            ->first();
        if(empty($customer)) return [false,'项目不存在或已被删除'];
        $customer = $customer->toArray();
        $customer['start_time']  = ! empty($customer['start_time']) ? date("Y-m-d", $customer['start_time']) : "";
        $customer['end_time']  = ! empty($customer['end_time']) ? date("Y-m-d", $customer['end_time']) : "";
        $customer['crt_name'] = Employee::where('id',$customer['crt_id'])->value('title');
        $customer['crt_time'] = $customer['crt_time'] ? date("Y-m-d H:i:s",$customer['crt_time']): '';
        $customer['state_title'] = Employee::State_Type[$customer['state']] ?? '';

        $details = $this->getDetail($data['id']);
        $customer = array_merge($customer, $details);

        return [true, $customer];
    }

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

        $model = Item::Clear($user,$data);
        $model = $model->where('del_time',0)
            ->select($field)
            ->orderby('id', 'desc');

        if(! empty($data['title'])) $model->where('title', 'LIKE', '%'.$data['title'].'%');
        if(! empty($data['code'])) $model->where('code', 'LIKE', '%'.$data['code'].'%');
        if(! empty($data['id'])) $model->whereIn('id', $data['id']);
        if(! empty($data['state'])) $model->where('state', $data['state']);
        if(! empty($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 itemList($data,$user){
        $model = $this->itemCommon($data, $user);
        $list = $this->limit($model,'',$data);
        $list = $this->fillData($list);

        return [true, $list];
    }

    public function itemRule(&$data, $user, $is_add = true){
        $data['top_depart_id'] = $user['top_depart_id'];
        if(empty($data['code'])) return [false, '项目编码不能为空'];
        if(empty($data['title'])) return [false, '项目名称不能为空'];
        if(! empty($data['start_time'])) $data['start_time'] = $this->changeDateToDate($data['start_time']);
        if(! empty($data['end_time'])) $data['end_time'] = $this->changeDateToDate($data['end_time'],true);
        $isMonthEnd = date('j', $data['end_time']) == date('t', $data['end_time']);
        if(! $isMonthEnd) return [false, '项目结束日期必须是当月最后一天'];
        if(empty($data['state'])) return [false, '项目状态不能为空'];
        if(! isset(Item::State_Type[$data['state']])) return [false, '项目状态不存在'];
        if(empty($data['man_list'])) return [false, '人员不能为空'];
        foreach ($data['man_list'] as $key => $value){
            if(empty($value['type'])) return [false, '类型不能为空'];
            if(empty($value['data_id'])) return [false, '人员不能为空'];
            $data['man_list'][$key]['top_depart_id'] = $data['top_depart_id'];
        }
        list($status, $msg) = $this->checkArrayRepeat($data['man_list'],'data_id','人员');
        if(! $status) return [false, $msg];
        if(empty($data['device_list'])) return [false, '设备不能为空'];
        foreach ($data['device_list'] as $key => $value){
            if(empty($value['type'])) return [false, '类型不能为空'];
            if(empty($value['data_id'])) return [false, '设备ID不能为空'];
            $data['device_list'][$key]['top_depart_id'] = $data['top_depart_id'];
        }
        list($status, $msg) = $this->checkArrayRepeat($data['device_list'],'data_id','设备');
        if(! $status) return [false, $msg];

        if($is_add){
            $bool = Item::where('code',$data['code'])
                ->where('top_depart_id', $data['top_depart_id'])
                ->where('del_time',0)
                ->exists();
        }else{
            if(empty($data['id'])) return [false,'ID不能为空'];
            $bool = Item::where('code',$data['code'])
                ->where('top_depart_id', $data['top_depart_id'])
                ->where('id','<>',$data['id'])
                ->where('del_time',0)
                ->exists();
        }
        if($bool) return [false, '项目编码已存在'];

        return [true, ''];
    }

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

        $emp = (new EmployeeService())->getEmployeeMap(array_unique(array_column($data['data'],'crt_id')));
        $map = [];
        if($is_export) $map = $this->getDetailsMap(array_column($data['data'],'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]['start_time'] = $value['start_time'] ? date('Y-m-d',$value['start_time']) : '';
            $data['data'][$key]['end_time'] = $value['end_time'] ? date('Y-m-d',$value['end_time']) : '';
            $data['data'][$key]['crt_name'] = $emp[$value['crt_id']] ?? '';
            $data['data'][$key]['state_title'] = Item::State_Type[$value['state']] ?? "";
            $tmp = $map[$value['id']] ?? [];
            $data['data'][$key]['man_list'] = $tmp['man'] ?? "";
            $data['data'][$key]['device_list'] = $tmp['device'] ?? "";
        }

        return $data;
    }

    public function getDetailsMap($item_id){
        // 1. 获取明细数据，注意一定要选出 item_id
        $data = ItemDetails::where('del_time', 0)
            ->whereIn('item_id', $item_id)
            ->select('item_id', 'data_id', 'type')
            ->get();

        // 2. 收集 ID 并按类型分类（去重以减少查询压力）
        $manIds = $data->where('type', ItemDetails::type_one)->pluck('data_id')->unique()->toArray();
        $devIds = $data->where('type', ItemDetails::type_two)->pluck('data_id')->unique()->toArray();

        // 3. 一次性查出对应的映射 (假设人员表字段是 number, 设备表是 code)
        // 注意：pluck('显示内容', 'ID')
        $manMap = Employee::whereIn('id', $manIds)->pluck('number', 'id')->toArray();
        $devMap = Device::whereIn('id', $devIds)->pluck('code', 'id')->toArray();

        // 4. 按 item_id 分组处理成字符串
        $result = [];
        foreach ($item_id as $id) {
            // 初始化每个 item_id 的默认结构
            $result[$id] = [
                'man' => '',
                'device' => ''
            ];
        }

        // 5. 遍历明细填充数据
        $grouped = $data->groupBy('item_id');
        foreach ($grouped as $itemId => $items) {
            $mans = [];
            $devices = [];

            foreach ($items as $item) {
                if ($item->type == ItemDetails::type_one) {
                    if (isset($manMap[$item->data_id])) {
                        $mans[] = $manMap[$item->data_id];
                    }
                } else {
                    if (isset($devMap[$item->data_id])) {
                        $devices[] = $devMap[$item->data_id];
                    }
                }
            }

            $result[$itemId] = [
                'man' => implode(',', $mans),
                'device' => implode(',', $devices)
            ];
        }

        return $result;
    }
}