<?php

namespace App\Services;

use App\Http\Controllers\Controller;
use App\LaborApply;
use App\LaborCompanyDispatch;
use App\LaborCompanyDispatchDetail;
use Carbon\Carbon;

class LaborCompanyDispatchDetailService extends Controller
{
    /**
     * 给劳工指定领队人
     *
     * @param LaborCompanyDispatch $laborCompanyDispatch
     */
    public function allocation(LaborCompanyDispatch $laborCompanyDispatch)
    {
        $date = Carbon::parse($laborCompanyDispatch->created_at);
        $startDay = $date->startOfDay()->toDateTimeString();
        $endDay = $date->endOfDay()->toDateTimeString();

        $isAllEnd = LaborCompanyDispatch::query()
            ->whereBetween('created_at', [$startDay, $endDay])
            ->where('man_num', '!=', 0)
            ->where('woman_num', '!=', 0)
            ->whereNotIn('status', [3, 4])->exists();
        if ($isAllEnd) {
            return;
        }
        $laborApplies = LaborApply::query()->whereBetween('created_at', [$startDay, $endDay])->get();
        // [warehouse_id->[user_workgroup_id->[man_num,woman_num]]] requirements
        $laborApplyMap = $this->getLaborApplyMap($laborApplies);

        $laborCompanyDispatchItems = LaborCompanyDispatch::query()->with("laborCompanyDispatchDetails")->whereBetween('created_at', [$startDay, $endDay])->get();
        // [warehouse_id->[manIds,womanIds]]  provision
        $laborCompanyApplyMap = $this->getLaborCompanyApplyMap($laborCompanyDispatchItems);

        $array = [];
        foreach ($laborApplyMap as $warehouseId => $laborRequirements) {
            if (!array_key_exists($warehouseId, $laborCompanyApplyMap))
                continue;

            // $laborRequirements -> [user_workgroup_id->[man_num,woman_num]]  [requirements]
            // $laborCompanyProvision -> [manIds,womanIds]  [provision]
            $laborCompanyProvision = $laborCompanyApplyMap[$warehouseId];
            foreach ($laborRequirements as $applyUserId => $requirement) {
                if (!array_key_exists($applyUserId, $array)) {
                    $array[$applyUserId] = [];
                }
                while (count($laborCompanyProvision['manIds']) > 0 && $requirement['manAmount'] > 0) {
                    array_push($array[$applyUserId], array_shift($laborCompanyProvision['manIds']));
                    $requirement['manAmount']--;
                }
                while (count($laborCompanyProvision['womanIds']) > 0 && $requirement['womanAmount'] > 0) {
                    array_push($array[$applyUserId], array_shift($laborCompanyProvision['womanIds']));
                    $requirement['womanAmount']--;
                }
            }
        }
        foreach ($array as $key => $value) {
            LaborCompanyDispatchDetail::query()->whereIn('id', $value)->update(['apply_user_id' => $key]);
        }
    }


    /**
     * @param $laborApplies
     * @return mixed
     */
    public function getLaborApplyMap($laborApplies)
    {
        $laborApplyMap = [];
        foreach ($laborApplies as $item) {
            if (array_key_exists($item->warehouse_id, $laborApplyMap)) {
                if (array_key_exists($item->user_workgroup_id, $laborApplyMap[$item->warehouse_id])) {
                    $laborApplyMap[$item->warehouse_id][$item->apply_user_id]['manAmount'] += $item->man_num;
                    $laborApplyMap[$item->warehouse_id][$item->apply_user_id]['womanAmount'] += $item->woman_num;
                } else {
                    $laborApplyMap[$item->warehouse_id][$item->apply_user_id] = ['manAmount' => $item->man_num, 'womanAmount' => $item->woman_num];
                }
            } else {
                $laborApplyMap[$item->warehouse_id][$item->apply_user_id] = ['manAmount' => $item->man_num, 'womanAmount' => $item->woman_num];
            }
        }
        return $laborApplyMap;
    }

    /**
     * @param $laborCompanyDispatchItems
     * @return mixed
     */
    public function getLaborCompanyApplyMap($laborCompanyDispatchItems)
    {

        $appliesItemsMap = [];
        foreach ($laborCompanyDispatchItems as $item) {
            $manIds = $this->manAmountFor($item->laborCompanyDispatchDetails);
            $womanIds = $this->womanAmountFor($item->laborCompanyDispatchDetails);
            if (array_key_exists($item->warehouse_id, $appliesItemsMap)) {
                $appliesItemsMap[$item->warehouse_id]['manIds'] = array_merge($appliesItemsMap[$item->warehouse_id]['manIds'], $manIds);
                $appliesItemsMap[$item->warehouse_id]['womanIds'] = array_merge($appliesItemsMap[$item->warehouse_id]['womanIds'], $womanIds);
            } else {
                $appliesItemsMap[$item->warehouse_id] = [
                    'manIds' => $manIds,
                    'womanIds' => $womanIds,
                ];
            }
        }
        return $appliesItemsMap;
    }


    private function manAmountFor($laborCompanyDispatchDetails)
    {
        $manIds = [];
        foreach ($laborCompanyDispatchDetails as $item) {
            if ($item->gender == '男') {
                array_push($manIds, $item->id);
            }
        }
        return $manIds;
    }

    private function womanAmountFor($laborCompanyDispatchDetails)
    {
        $womanIds = [];
        foreach ($laborCompanyDispatchDetails as $item) {
            if ($item->gender == '女') {
                array_push($womanIds, $item->id);
            }
        }
        return $womanIds;
    }
}