<?php

namespace App\Service;

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

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

        try {
            DB::beginTransaction();

            $model = RuleSet::where('id',$data['id'])->first();
//            $model->code = $data['code'] ?? '';
//            $model->month = $data['month'] ?? 0;
//            $model->save();

            $time = time();
            RuleSetDetails::where('del_time',0)
                ->where('main_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 ruleSetAdd($data,$user){
        list($status,$msg) = $this->ruleSetRule($data, $user);
        if(!$status) return [$status,$msg];

        try {
            DB::beginTransaction();

            $model = new RuleSet();
            $model->code = $this->generateBillNo([
                'top_depart_id' => $user['top_depart_id'],
                'type' => RuleSet::Order_type,
                'period' => date("Ym", $data['month'])
            ]);
            $model->month = $data['month'] ?? 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[] = [
                    'main_id' => $id,
                    'item_id' => $value['item_id'],
                    'type' => $value['type'],
                    'data_id' => $value['data_id'],
                    'rate' => $value['rate'],
                    'crt_time' => $time,
                    'top_depart_id' => $value['top_depart_id'],
                ];
            }
            if(! empty($unit)) RuleSetDetails::insert($unit);
        }

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

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

        $id = $id2 = $item_id = [];
        foreach ($data as $value){
            if($value['type'] == RuleSetDetails::type_one) {
                $id[] = $value['data_id'];
            }else{
                $id2[] = $value['data_id'];
            }
            if(! in_array($value['item_id'], $item_id)) $item_id[] = $value['item_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');
        $map3 = Item::whereIn('id', $item_id)->select('title','id','code')->get()->toArray();
        $map3 = array_column($map3,null,'id');

        $unit = $receipt = [];
        foreach ($data as $value){
            $item = $map3[$value['item_id']] ?? [];
            if($value['type'] == RuleSetDetails::type_one) {
                $tmp = $map[$value['data_id']] ?? [];
                $unit[] = [
                    'type' => $value['type'],
                    'rate' => $value['rate'],
                    'data_id' => $value['data_id'],
                    'data_title' => $tmp['title'],
                    'data_code' => $tmp['number'],
                    'item_id' => $value['item_id'],
                    'item_title' => $item['title'] ?? "",
                    'item_code' => $item['code'] ?? "",
                ];
            }else{
                $tmp = $map2[$value['data_id']] ?? [];
                $receipt[] = [
                    'type' => $value['type'],
                    'rate' => $value['rate'],
                    'data_id' => $value['data_id'],
                    'data_title' => $tmp['title'] ?? "",
                    'data_code' => $tmp['code'] ?? "",
                    'item_id' => $value['item_id'],
                    'item_title' => $item['title'] ?? "",
                    'item_code' => $item['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 ruleSetDel($data){
        if($this->isEmpty($data,'id')) return [false,'请选择数据！'];

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

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

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

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

        return [true, ''];
    }

    public function ruleSetDetail($data, $user){
        if($this->isEmpty($data,'id')) return [false,'请选择数据！'];
        $customer = RuleSet::where('del_time',0)
            ->where('id',$data['id'])
            ->first();
        if(empty($customer)) return [false,'规则配置单不存在或已被删除'];
        $customer = $customer->toArray();
        $customer['month']  = ! empty($customer['month']) ? date("Y-m", $customer['month']) : "";
        $customer['crt_name'] = Employee::where('id',$customer['crt_id'])->value('title');
        $customer['crt_time'] = $customer['crt_time'] ? date("Y-m-d H:i:s",$customer['crt_time']): '';

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

        return [true, $customer];
    }

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

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

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

        return $model;
    }

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

        return [true, $list];
    }

    public function ruleSetRule(&$data, $user, $is_add = true)
    {
        $data['top_depart_id'] = $user['top_depart_id'];
        if (empty($data['month'])) return [false, '月份不能为空'];
        $data['month'] = $this->changeDateToDate($data['month']);

        // --- 0. 批量预加载档案用于错误提示 (核心优化点) ---
        $manIds = array_unique(array_column($data['man_list'] ?? [], 'data_id'));
        $devIds = array_unique(array_column($data['device_list'] ?? [], 'data_id'));

        $manMap = Employee::whereIn('id', $manIds)->get(['id', 'number', 'title'])
            ->mapWithKeys(fn($item) => [$item->id => "[{$item->number}]{$item->title}"]);

        $devMap = Device::whereIn('id', $devIds)->get(['id', 'code', 'title'])
            ->mapWithKeys(fn($item) => [$item->id => "[{$item->code}]{$item->title}"]);

        // --- 1. 人员列表校验 ---
        if (empty($data['man_list'])) return [false, '人员不能为空'];
        $manRates = [];
        foreach ($data['man_list'] as $key => $value) {
            if (empty($value['type'])) return [false, '类型不能为空'];
            if (empty($value['data_id'])) return [false, '人员不能为空'];
            if (empty($value['item_id'])) return [false, '项目不能为空'];

            $res = $this->checkNumber($value['rate'], 2, 'non-negative');
            if (!$res['valid']) return [false, '人员工时分摊比例：' . $res['error']];

            $data['man_list'][$key]['top_depart_id'] = $data['top_depart_id'];

            $manId = $value['data_id'];
            $manRates[$manId] = ($manRates[$manId] ?? 0) + $value['rate'];
        }

        // 校验人员比例 (错误提示加入人名)
        foreach ($manRates as $mId => $total) {
            if (abs($total - 100) > 0.0001) {
                $displayName = $manMap[$mId] ?? "ID:{$mId}";
                return [false, "人员{$displayName}的分摊比例合计为{$total}%，必须等于100%"];
            }
        }

        // --- 2. 设备列表校验 ---
        if (empty($data['device_list'])) return [false, '设备不能为空'];
        $deviceRates = [];
        foreach ($data['device_list'] as $key => $value) {
            if (empty($value['type'])) return [false, '类型不能为空'];
            if (empty($value['data_id'])) return [false, '设备ID不能为空'];
            if (empty($value['item_id'])) return [false, '项目不能为空'];

            $res = $this->checkNumber($value['rate'], 2, 'non-negative');
            if (!$res['valid']) return [false, '设备工时分摊比例：' . $res['error']];

            $data['device_list'][$key]['top_depart_id'] = $data['top_depart_id'];

            $devId = $value['data_id'];
            $deviceRates[$devId] = ($deviceRates[$devId] ?? 0) + $value['rate'];
        }

        // 校验设备比例 (错误提示加入设备名称)
        foreach ($deviceRates as $dId => $total) {
            if (abs($total - 100) > 0.0001) {
                $displayName = $devMap[$dId] ?? "ID:{$dId}";
                return [false, "设备{$displayName}的分摊比例合计为{$total}%，必须等于100%"];
            }
        }

        // --- 3. 重复单据校验 ---
        if ($is_add) {
            $bool = RuleSet::where('month', $data['month'])
                ->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 = RuleSet::where('month', $data['month'])
                ->where('top_depart_id', $data['top_depart_id'])
                ->where('id', '<>', $data['id'])
                ->where('del_time', 0)
                ->exists();
        }
        if ($bool) return [false, date("Y-m", $data['month']) . '的规则配置单已存在'];

        return [true, ''];
    }

    public function fillData($data){
        if(empty($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]['month'] = $value['month'] ? date('Y-m',$value['month']) : '';
            $data['data'][$key]['crt_name'] = $emp[$value['crt_id']] ?? '';
        }

        return $data;
    }

    public function fillDataForExport($data, $column, &$return)
    {
        if (empty($data)) return;

        $mainIds = array_column($data, 'id');
        // 1. 获取详情映射 [main_id => [ [code_2=>..., title=>..., item_code=>...], ... ]]
        $detailsMap = $this->getDetailsMap($mainIds);

        foreach ($data as $main) {
            $mainId = $main['id'];
            $details = $detailsMap[$mainId] ?? [];

            // 2. 提取并格式化主表共有信息
            $mainInfo = [
                'code'  => $main['code'],
                'month' => !empty($main['month']) ? date('Y-m', $main['month']) : '',
            ];

            if (empty($details)) {
                // 如果单据没有明细，则只导出一行主表信息（确保数据完整）
                $tempRow = [];
                foreach ($column as $col) {
                    $tempRow[] = $mainInfo[$col] ?? '';
                }
                $return[] = $tempRow;
            } else {
                // 3. 核心平铺逻辑：每一行详情都带上主表单号
                foreach ($details as $sub) {
                    // 合并主表数据和详情数据
                    $fullRowData = array_merge($mainInfo, $sub);

                    $tempRow = [];
                    // 严格按照导出 Excel 的列顺序填充数据
                    foreach ($column as $col) {
                        $tempRow[] = $fullRowData[$col] ?? '';
                    }
                    $return[] = $tempRow;
                }
            }
        }
    }

    public function getDetailsMap($mainIds)
    {
        $details = RuleSetDetails::where('del_time', 0)
            ->whereIn('main_id', $mainIds)
            ->get();

        if ($details->isEmpty()) return [];

        // 1. 提取所有需要关联的 ID
        $empIds = $details->where('type', RuleSetDetails::type_one)->pluck('data_id')->unique();
        $devIds = $details->where('type', RuleSetDetails::type_two)->pluck('data_id')->unique();
        $itemIds = $details->pluck('item_id')->unique();

        // 2. 批量获取档案 Map
        $empMap = Employee::whereIn('id', $empIds)->get()->keyBy('id');
        $devMap = Device::whereIn('id', $devIds)->get()->keyBy('id');
        $itemMap = Item::whereIn('id', $itemIds)->get()->keyBy('id');

        $typeNames = RuleSetDetails::$type_name;

        $res = [];
        foreach ($details as $item) {
            $detailRow = [];

            // 类型名称（明细类型列）
            $detailRow['type_title'] = $typeNames[$item->type] ?? '';

            // 处理人员或设备的编码与名称（影子列）
            if ($item->type == RuleSetDetails::type_one) {
                $emp = $empMap[$item->data_id] ?? null;
                $detailRow['code_2'] = $emp ? $emp->number : ''; // 明细编码
                $detailRow['title']  = $emp ? $emp->title : '';   // 明细名称
            } else {
                $dev = $devMap[$item->data_id] ?? null;
                $detailRow['code_2'] = $dev ? $dev->code : '';   // 明细编码
                $detailRow['title']  = $dev ? $dev->title : '';   // 明细名称
            }

            // 处理项目编码与名称
            $project = $itemMap[$item->item_id] ?? null;
            $detailRow['item_code']  = $project ? $project->code : '';
            $detailRow['item_title'] = $project ? $project->title : '';

            // 比例
            $detailRow['rate'] = $item->rate;

            // 归档到对应的单据下
            $res[$item->main_id][] = $detailRow;
        }

        return $res;
    }

    public function isSetMonthCalendar($data, $user){
        $data['top_depart_id'] = $user['top_depart_id'];
        if(empty($data['month'])) return [false, '月份不能为空'];

        // 1. 月份初始化
        $monthStart = $this->changeDateToDate($data['month']);
        $monthStr = date("Y-m", $monthStart);
        $endTime = strtotime("+1 month", $monthStart) - 1;

        // 2. 获取当月标准工作日天数 (基数)
        $standardWorkDays = DB::table('calendar_details')
            ->where('top_depart_id', $data['top_depart_id'])
            ->where('del_time', 0)
            ->where('time', '>=', $monthStart)
            ->where('time', '<=', $endTime)
            ->where('is_work', CalendarDetails::TYPE_ONE)
            ->count();

        if ($standardWorkDays <= 0) return [false, $monthStr . '还未设置工作日'];

        return [true, ''];
    }

    public function ruleSetCreate($data, $user){
        $data['top_depart_id'] = $user['top_depart_id'];
        if(empty($data['month'])) return [false, '月份不能为空'];

        $monthStart = $this->changeDateToDate($data['month']);
        $data['month'] = $monthStart;
        $monthEnd = strtotime('+1 month', $monthStart) - 1;

        // 1. 获取在该月份有效期内的项目及其信息 (ID, 标题, 编号)
        $itemsData = DB::table('item')
            ->where('top_depart_id', $data['top_depart_id'])
            ->where('del_time', 0)
            ->where('start_time', '<=', $monthEnd)
            ->where('end_time', '>=', $monthStart)
            ->get(['id', 'title', 'code']) // 获取项目 ID, 标题, 编号
            ->keyBy('id')
            ->toArray();

        if (empty($itemsData)) return [false, "该月份下无项目信息"];
        $itemIds = array_keys($itemsData);

        // 2. 获取项目明细
        $details = DB::table('item_details')
            ->whereIn('item_id', $itemIds)
            ->where('top_depart_id', $data['top_depart_id'])
            ->where('del_time', 0)
            ->get();

        $manIds = []; $devIds = [];
        $manMap = []; $deviceMap = [];

        foreach ($details as $row) {
            if ($row->type == ItemDetails::type_one) {
                $manMap[$row->data_id][] = $row->item_id;
                $manIds[] = $row->data_id;
            } elseif ($row->type == ItemDetails::type_two) {
                $deviceMap[$row->data_id][] = $row->item_id;
                $devIds[] = $row->data_id;
            }
        }

        // 3. 批量获取人员和设备信息 (含编号)
        $manInfos = DB::table('employee')
            ->whereIn('id', array_unique($manIds))
            ->get(['id', 'title', 'number']) // 这里的 number 是工号
            ->keyBy('id')->toArray();

        $devInfos = DB::table('device')
            ->whereIn('id', array_unique($devIds))
            ->get(['id', 'title', 'code']) // 这里的 code 是资产编号
            ->keyBy('id')->toArray();

        // 4. 生成分配列表
        $man_list = $this->distributeRates($manMap, RuleSetDetails::type_one, $manInfos, $itemsData);
        $device_list = $this->distributeRates($deviceMap, RuleSetDetails::type_two, $devInfos, $itemsData);

        return [true, [
            'month' => date('Y-m', $monthStart),
            'man_list' => $man_list,
            'device_list' => $device_list
        ]];
    }

    private function distributeRates($map, $type, $infoMap, $itemsData)
    {
        $result = [];
        foreach ($map as $dataId => $items) {
            $count = count($items);
            $rates = [];

            // --- 随机分配逻辑 (保持不变) ---
            if ($count === 1) {
                $rates = [100];
            } else {
                $sum = 0; $temp = [];
                for ($i = 0; $i < $count; $i++) {
                    $rand = rand(10, 100);
                    $temp[] = $rand; $sum += $rand;
                }
                $currentTotal = 0;
                foreach ($temp as $i => $weight) {
                    if ($i === $count - 1) {
                        $rates[] = 100 - $currentTotal;
                    } else {
                        $val = (int)round(($weight / $sum) * 100);
                        $val = $val <= 0 ? 1 : $val;
                        $rates[] = $val; $currentTotal += $val;
                    }
                }
            }

            // --- 数据组装 ---
            foreach ($items as $index => $itemId) {
                $info = $infoMap[$dataId] ?? null;
                $itemInfo = $itemsData[$itemId] ?? null;

                $result[] = [
                    'type'       => $type,
                    'data_id'    => $dataId,
                    'data_title' => $info->title ?? '',
                    'data_code'  => ($type == RuleSetDetails::type_one) ? ($info->number ?? '') : ($info->code ?? ''),
                    'item_id'    => $itemId,
                    'item_title' => $itemInfo->title ?? '',
                    'item_code'  => $itemInfo->code ?? '', // 项目编号
                    'rate'       => $rates[$index]
                ];
            }
        }
        return $result;
    }
}