<?php

namespace Modules\EcommerceFinance\Services;

use App\Utilities\FinanceLedgerAccountStatus;
use App\Utilities\FinanceLedgerAccountShouldKeep;
use App\Utilities\FinanceLedgerAccountType;
use Illuminate\Support\Facades\DB;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Cell\DataValidation;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Style\Alignment;
use PhpOffice\PhpSpreadsheet\Style\Border;
use PhpOffice\PhpSpreadsheet\Style\Fill;
use PhpOffice\PhpSpreadsheet\Style\NumberFormat;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
use Symfony\Component\HttpFoundation\StreamedResponse;

/**
 * 财务台账账户总表空白录入模板。
 */
class FinanceLedgerAccountTemplate
{
    private const MAX_ROWS = 1000;

    private const HEADERS = [
        '公司名称',
        '账户简称',
        '账户类型',
        '账户状态',
        '地区',
        '账号',
        '开户行',
        '开户城市/网点',
        '公司规划',
        '账户是否保留',
        '后4位',
        '单笔限额',
        '日限额',
        '月限额',
        '年限额',
        '可用金额',
        '不可用金额',
        '每日可出',
        '预计出清天数',
        '提额目标',
        '提额状态',
        '提额动作',
        '已做动作',
        '下一步',
        '备注',
        '责任人',
    ];

    public function download(): StreamedResponse
    {
        $spreadsheet = $this->makeSpreadsheet();

        return response()->streamDownload(function () use ($spreadsheet): void {
            $writer = new Xlsx($spreadsheet);
            $writer->setPreCalculateFormulas(false);
            $writer->save('php://output');
            $spreadsheet->disconnectWorksheets();
        }, '财务台账-账户总表录入模板.xlsx', [
            'Content-Type' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
            'Cache-Control' => 'no-store, no-cache, must-revalidate',
        ]);
    }

    private function makeSpreadsheet(): Spreadsheet
    {
        $spreadsheet = new Spreadsheet();
        $spreadsheet->getProperties()
            ->setTitle('财务台账账户总表录入模板')
            ->setSubject('账户总表重新录入');

        $sheet = $spreadsheet->getActiveSheet();
        $sheet->setTitle('账户总表');
        $lastColumn = Coordinate::stringFromColumnIndex(count(self::HEADERS));
        $lastRow = self::MAX_ROWS + 1;

        foreach (self::HEADERS as $index => $header) {
            $column = Coordinate::stringFromColumnIndex($index + 1);
            $sheet->setCellValue("{$column}1", $header);
            $sheet->getColumnDimension($column)->setWidth($this->width($index));
        }

        $sheet->freezePane('A2');
        $sheet->setAutoFilter("A1:{$lastColumn}1");
        $sheet->getRowDimension(1)->setRowHeight(28);
        $sheet->getStyle("A1:{$lastColumn}1")->getAlignment()
            ->setHorizontal(Alignment::HORIZONTAL_CENTER)
            ->setVertical(Alignment::VERTICAL_CENTER)
            ->setWrapText(true);
        $sheet->getStyle("A1:{$lastColumn}1")->getFont()->setBold(true)->getColor()->setARGB('FFFFFFFF');
        $sheet->getStyle("A1:{$lastColumn}1")->getFill()
            ->setFillType(Fill::FILL_SOLID)
            ->getStartColor()->setARGB('FF856632');
        $sheet->getStyle("A1:{$lastColumn}{$lastRow}")->getBorders()->getAllBorders()
            ->setBorderStyle(Border::BORDER_THIN)->getColor()->setARGB('FFD8D2C7');

        $sheet->getStyle("A2:O{$lastRow}")->getNumberFormat()->setFormatCode(NumberFormat::FORMAT_TEXT);
        $sheet->getStyle("P2:R{$lastRow}")->getNumberFormat()->setFormatCode('#,##0.00');
        $sheet->getStyle("S2:S{$lastRow}")->getNumberFormat()->setFormatCode('0.00');
        $sheet->getStyle("T2:Z{$lastRow}")->getNumberFormat()->setFormatCode(NumberFormat::FORMAT_TEXT);

        $options = $spreadsheet->createSheet();
        $options->setTitle('选项');
        $options->setCellValue('A1', '账户状态');
        $options->setCellValue('B1', '账户类型');
        $options->setCellValue('C1', '账户是否保留');
        $statuses = array_values(FinanceLedgerAccountStatus::OPTIONS);
        $types = $this->accountTypes();
        $keepOptions = FinanceLedgerAccountShouldKeep::OPTIONS;
        foreach ($statuses as $index => $status) {
            $options->setCellValue('A' . ($index + 2), $status);
        }
        foreach ($types as $index => $type) {
            $options->setCellValue('B' . ($index + 2), $type);
        }
        foreach ($keepOptions as $index => $option) {
            $options->setCellValue('C' . ($index + 2), $option);
        }
        $options->setSheetState(Worksheet::SHEETSTATE_HIDDEN);

        $this->applyListValidation($sheet, 'D', '\'选项\'!$A$2:$A$' . (count($statuses) + 1), '请选择账户状态');
        if ($types !== []) {
            $this->applyListValidation($sheet, 'C', '\'选项\'!$B$2:$B$' . (count($types) + 1), '请选择账户类型');
        }
        $this->applyListValidation($sheet, 'J', '\'选项\'!$C$2:$C$' . (count($keepOptions) + 1), '请选择账户是否保留');

        $notes = $spreadsheet->createSheet();
        $notes->setTitle('填写说明');
        $notes->fromArray([
            ['项目', '说明'],
            ['用途', '账户总表重新录入模板，不包含当前账户数据。'],
            ['必填', '公司名称、账户简称。'],
            ['账户状态', implode(' / ', $statuses)],
            ['账户类型', $types !== [] ? implode(' / ', $types) : '留空或按实际填写'],
            ['账户是否保留', implode(' / ', $keepOptions)],
            ['金额', '可用金额、不可用金额、每日可出按数字填写；限额列保留原有组合写法。'],
            ['提交前', '请核对账户数、余额合计和期初合计，再导入系统。'],
        ], null, 'A1');
        $notes->getColumnDimension('A')->setWidth(16);
        $notes->getColumnDimension('B')->setWidth(70);
        $notes->getStyle('A1:B1')->getFont()->setBold(true)->getColor()->setARGB('FFFFFFFF');
        $notes->getStyle('A1:B1')->getFill()
            ->setFillType(Fill::FILL_SOLID)
            ->getStartColor()->setARGB('FF856632');
        $notes->getStyle('A1:B8')->getAlignment()->setVertical(Alignment::VERTICAL_TOP)->setWrapText(true);
        $notes->getStyle('A1:B8')->getBorders()->getAllBorders()
            ->setBorderStyle(Border::BORDER_THIN)->getColor()->setARGB('FFD8D2C7');
        $notes->getRowDimension(1)->setRowHeight(26);

        $spreadsheet->setActiveSheetIndex(0);

        return $spreadsheet;
    }

    private function applyListValidation(
        Worksheet $sheet,
        string $column,
        string $formula,
        string $prompt,
    ): void {
        $validation = $sheet->getCell("{$column}2")->getDataValidation();
        $validation->setType(DataValidation::TYPE_LIST);
        $validation->setErrorStyle(DataValidation::STYLE_STOP);
        $validation->setAllowBlank(true);
        $validation->setShowInputMessage(true);
        $validation->setPromptTitle('选择' . $prompt);
        $validation->setPrompt($prompt);
        $validation->setShowErrorMessage(true);
        $validation->setErrorTitle('选项无效');
        $validation->setError($prompt);
        $validation->setFormula1($formula);
        $validation->setShowDropDown(true);

        for ($row = 2; $row <= self::MAX_ROWS + 1; $row++) {
            $sheet->getCell("{$column}{$row}")->setDataValidation(clone $validation);
        }
    }

    private function accountTypes(): array
    {
        $connection = DB::connection((string) config('upstream_mirrors.connection', 'business_mirror'));
        $base = $connection->table('fin_accounts')
            ->whereNotNull('account_type')->where('account_type', '<>', '')
            ->distinct()->pluck('account_type')->all();
        $overrides = $connection->table('fin_account_type_overrides')
            ->whereNotNull('account_type')->where('account_type', '<>', '')
            ->distinct()->pluck('account_type')->all();
        return FinanceLedgerAccountType::options($base, $overrides);
    }

    private function width(int $index): int
    {
        return match ($index) {
            0, 6 => 30,
            1, 5, 7, 24 => 22,
            2, 3, 4, 8, 9, 18 => 13,
            15, 16, 17 => 16,
            default => 18,
        };
    }
}