<?php

namespace App\Admin\Repositories;

use Dcat\Admin\Grid;
use App\Models\Store\{StockLog, ProductSku};
use Dcat\Admin\Repositories\Repository;
use Illuminate\Support\Facades\DB;
use Carbon\Carbon;

class StoreTockRepository extends Repository
{
    public function get(Grid\Model $model)
    {
        // 当前页数
        $currentPage = $model->getCurrentPage();
        // 每页显示行数
        $perPage = $model->getPerPage();

        $query = $this->getQuery($model);

        $list = $query->paginate($perPage, ['*'], 'page', $currentPage);
        $total = $query->count();
        $tags = StockLog::tags()->get();
        $data = [];
        foreach($list as $item) {
            $stock = $item->stockLogs;
            $in = $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_IN)->sum('amount');
            $loss = $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_LOSS)->sum('amount');
            $self = $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_SELF)->sum('amount');
            $sell_price = data_get($item->productSku, 'sell_price') / 100;
            $cost_price = data_get($item->productSku, 'cost_price') / 100;
            $subData = [
                'id' => $item->product_sku_id,
                'store_name' => data_get($item->store, 'title'),
                'name' => data_get($item->productSku, 'name'),
                'category_id' => data_get($item->productSku, 'category.id'),
                'category_name' => data_get($item->productSku, 'category.name'),
                'cost_price' => $cost_price,
                'sell_price' => $sell_price,
                'stock' => data_get($item, 'amount'),
                // 入库数
                'tag_in' => $in,
                // 销售数 = 提货数 + 发货数
                'tag_sell' => $stock->where('product_sku_id', $item->product_sku_id)->whereIn('tag_id', [StockLog::TAG_CARRY, StockLog::TAG_SEND])->sum('amount'),
                // 线上销售数 = 发货数
                'tag_online' => $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_SEND)->sum('amount'),
                // 报损数
                'tag_loss' => $loss,
                // 自用数
                'tag_self' => $self,
                // 初期库存
                'init_stock' => data_get($item->stockLog, 'balance', 0),
                // 调货数 = 出库数
                'tag_out' => $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_OUT)->sum('amount'),
                // 毛利 = (入库数-报损数-自用数) x (售价-成本)
                'total_profit' => floor(($in - $loss - $self) * ($sell_price - $cost_price)),
            ];
            array_push($data, $subData);
        }

        return $model->makePaginator($total, $data);
    }

    public function getQuery(Grid\Model $model)
    {
        $query = ProductSku::with([
            'store',
            'productSku.category',
            'stockLogs' => function ($q) use ($model) {
                $q->select('id', 'product_sku_id', DB::raw('abs(`amount`) as `amount`'), 'tag_id');
                if ($start = $model->filter()->input('date.start')) {
                    $start = Carbon::createFromFormat('Y-m-d', $start)->startOfDay();
                    $q->where('created_at', '>=', $start);
                }
                if ($end = $model->filter()->input('date.end')) {
                    $end = Carbon::createFromFormat('Y-m-d', $end)->endOfDay();
                    $q->where('created_at', '<=', $end);
                }
                if ($store_id = $model->filter()->input('store_id')) {
                    $q->where('store_id', $store_id);
                }
            },
            'stockLog' => function ($q) use ($model) {
                if ($store_id = $model->filter()->input('store_id')) {
                    $q->where('store_id', $store_id);
                }
                if ($start = $model->filter()->input('date.start')) {
                    $start = Carbon::createFromFormat('Y-m-d', $start)->startOfDay();
                    $q->where('created_at', '<=', $start);
                }
                $q->orderBy('created_at', 'desc')->limit(1);
            },
        ]);

        // 查询条件
        $filters = $model->filter()->input();
        foreach($filters as $key => $value) {
            if ($key == 'category_id') {
                $query->whereHas('productSku', fn($q1) => $q1->filter(['category' => $value], \App\Endpoint\Api\Filters\ProductSkuFilter::class));
            } else if ($key == 'store_id') {
                $query->where('store_id', $value);
            } else if ($key == 'product_name') {
                $query->whereHas('productSku', fn($q1) => $q1->filter(['keyword' => $value], \App\Endpoint\Api\Filters\ProductSkuFilter::class));
            }
        }
        // 排序条件
        [$orderColumn, $orderType] = $model->getSort();
        if ($orderColumn == 'stock') {
            $query->orderBy('amount', $orderType);
        }

        return $query;
    }

    public function getTotal(Grid\Model $model)
    {
        $query = $this->getQuery($model);
        $list = $query->get();
        $data = [
            // 入库总成本 = 总数量 * 成本价
            'total_in' => 0,
            // 销售数 = (提货数 + 发货数) * 售价
            'total_sell' => 0,
            // 线上销售总金额 = 发货数 * 售价
            'total_online' => 0,
            // 报损总成本 = 报损数 * 成本价
            'total_loss' => 0,
            // 自用总成本 = 自用数 * 成本价
            'total_self' => 0,
            // 调货总成本 = 调货数(出库) * 成本价
            'total_out' => 0,
            // 现有总成本 = 库存 * 成本价
            'total_cost_price' => 0,
            // 现有总价值 = 库存 * 售价
            'total_sell_price' => 0,
            // 毛利 = (入库数-报损数-自用数) x (售价-成本)
            'total_profit' => 0,
        ];
        foreach ($list as $item) {
            $stock = $item->stockLogs;
            $cost_price = data_get($item, 'productSku.cost_price', 0) / 100;
            $sell_price = data_get($item, 'productSku.sell_price', 0) / 100;
            $current_stock = $item->amount;
            $in_amount = $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_IN)->sum('amount');
            $loss_amount = $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_LOSS)->sum('amount');
            $self_amount = $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_SELF)->sum('amount');

            $data['total_in'] += $in_amount * $cost_price;
            $data['total_sell'] += $stock->where('product_sku_id', $item->product_sku_id)->whereIn('tag_id', [StockLog::TAG_CARRY, StockLog::TAG_SEND])->sum('amount') * $sell_price;
            $data['total_online'] += $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_SEND)->sum('amount') * $sell_price;
            $data['total_loss'] += $loss_amount * $cost_price;
            $data['total_self'] += $self_amount * $cost_price;
            $data['total_out'] += $stock->where('product_sku_id', $item->product_sku_id)->where('tag_id', StockLog::TAG_OUT)->sum('amount') * $cost_price;
            $data['total_cost_price'] += $current_stock * $cost_price;
            $data['total_sell_price'] += $current_stock * $sell_price;
            $data['total_profit'] += ($in_amount - $loss_amount - $self_amount) * ($sell_price - $cost_price);
        }
        return $data;
    }
}