<?php

declare(strict_types=1);

namespace App\Exports;

use Carbon\Carbon;
use Maatwebsite\Excel\Concerns\FromArray;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithMultipleSheets;
use Maatwebsite\Excel\Concerns\WithTitle;

/**
 * 三方仓仓储费核算明细导出:汇总 / 进销存数据汇总(每日) / 进销存(逐商品) /
 * 每日商品仓储费四张表。
 * 数据来自 ThirdPartyWarehouseStorageFeeCalculator 的核算结果(或存档快照)。
 */
class ThirdPartyWarehouseStorageSettlementExport implements WithMultipleSheets
{
    /**
     * @param array{summary:array<string,mixed>,daily:list<array<string,mixed>>,per_sku:list<array<string,mixed>>,daily_sku?:list<array<string,mixed>>} $result
     */
    public function __construct(private readonly array $result)
    {
    }

    /** @return array<int,object> */
    public function sheets(): array
    {
        return [
            new StorageSettlementSummarySheet($this->result['summary']),
            new StorageSettlementDailySheet($this->result['summary'], $this->result['daily']),
            new StorageSettlementSkuSheet($this->result['per_sku']),
            new ThirdPartyWarehouseStorageDetailExport($this->result['daily_sku'] ?? []),
        ];
    }
}

class StorageSettlementSummarySheet implements FromArray, WithHeadings, WithTitle
{
    /** @param array<string,mixed> $summary */
    public function __construct(private readonly array $summary)
    {
    }

    public function title(): string
    {
        return '汇总';
    }

    /** @return array<int,string> */
    public function headings(): array
    {
        $period = (string) ($this->summary['period'] ?? '');
        $label = $period !== '' ? Carbon::createFromFormat('Y-m-d', $period . '-01')->format('Y年n月') : '汇总';

        return [$label, '仓库提供', '简尚核算', '差异'];
    }

    /** @return array<int,array<int,mixed>> */
    public function array(): array
    {
        $s = $this->summary;
        $rate = static fn (string $key): string => rtrim(rtrim(number_format((float) ($s[$key] ?? 0), 4, '.', ''), '0'), '.');
        $rows = [
            ['入库管理费（' . $rate('inbound_rate_per_ton') . '元/吨）', null, (float) $s['inbound_fee']],
            ['出库费用（' . $rate('outbound_rate_per_order') . '元/单）', null, (float) $s['outbound_fee']],
            ['当天仓储费用（每日库存结余÷' . $rate('pieces_per_pallet') . '件×托盘' . $rate('pallet_area_sqm') . '㎡×' . $rate('storage_rate_per_sqm_month') . '÷当月天数，逐日累加）', null, (float) $s['storage_fee']],
            ['记账', null, (float) $s['memo_fee']],
            ['盘亏扣款', null, (float) $s['loss_fee']],
            ['赔偿', null, (float) $s['compensation_fee']],
            ['合计', 0, (float) $s['total_fee']],
        ];

        return array_map(static function (array $row): array {
            $provided = $row[1];
            $checked = $row[2];
            $diff = $checked === null ? null : round((float) ($provided ?? 0) - (float) $checked, 2);

            return [$row[0], $provided, $checked, $diff];
        }, $rows);
    }
}

class StorageSettlementDailySheet implements FromArray, WithHeadings, WithTitle
{
    /**
     * @param array<string,mixed> $summary
     * @param list<array<string,mixed>> $daily
     */
    public function __construct(private readonly array $summary, private readonly array $daily)
    {
    }

    public function title(): string
    {
        return '进销存数据汇总';
    }

    /** @return array<int,string> */
    public function headings(): array
    {
        return ['日期', '当日入库计费件数', '入库管理（吨重）', '当日出库计费件数', '当日库存结余', '坪效仓储费', '入库管理费', '出库费用', '增值服务(元/件)', '合计'];
    }

    /** @return array<int,array<int,mixed>> */
    public function array(): array
    {
        $rows = [];
        $sumInbound = 0.0;
        $sumOut = 0.0;
        $sumStorage = 0.0;
        $sumOutFee = 0.0;
        foreach ($this->daily as $d) {
            $rows[] = [
                $d['date'],
                (float) $d['inbound_qty'],
                null,
                (float) $d['outbound_qty'],
                (float) $d['closing'],
                (float) $d['storage_fee'],
                null,
                (float) $d['outbound_fee'],
                null,
                (float) $d['total'],
            ];
            $sumInbound += (float) $d['inbound_qty'];
            $sumOut += (float) $d['outbound_qty'];
            $sumStorage += (float) $d['storage_fee'];
            $sumOutFee += (float) $d['outbound_fee'];
        }

        $s = $this->summary;
        $rows[] = [
            '合计',
            round($sumInbound, 2),
            (float) $s['inbound_tons'],
            round($sumOut, 2),
            null,
            round($sumStorage, 2),
            (float) $s['inbound_fee'],
            round($sumOutFee, 2),
            null,
            round($sumStorage + (float) $s['inbound_fee'] + round($sumOutFee, 2), 2),
        ];

        return $rows;
    }
}

class StorageSettlementSkuSheet implements FromArray, WithHeadings, WithTitle
{
    /** @param list<array<string,mixed>> $perSku */
    public function __construct(private readonly array $perSku)
    {
    }

    public function title(): string
    {
        return '进销存';
    }

    /** @return array<int,string> */
    public function headings(): array
    {
        return ['货主', '商品编码', '商品名称', '供应商', '分类', '单位', '重量(kg)', '单件吨', '入库计费件数', '总吨(单件吨×入库计费件数)', '出库计费件数', '期初数量', '期末数量'];
    }

    /** @return array<int,array<int,mixed>> */
    public function array(): array
    {
        return array_map(static fn (array $r): array => [
            $r['owner'],
            $r['sku_code'],
            $r['product_name'],
            $r['supplier'],
            $r['category'],
            $r['unit'],
            (float) $r['weight'],
            (float) $r['per_ton'],
            (float) $r['inbound_qty'],
            (float) $r['total_ton'],
            (float) $r['outbound_qty'],
            (float) $r['opening'],
            (float) $r['closing'],
        ], $this->perSku);
    }
}