<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use Modules\EcommerceFinance\Repositories\StoreViolationRuleRepository;
use PhpOffice\PhpSpreadsheet\IOFactory;
use Throwable;

/**
 * 店铺违规信息预警：违规字典维护（Excel 导入 / 更新，按 平台+违规类型 幂等）。
 *
 * 表头（顺序不限）：平台、违规分类、违规类型、匹配关键词、预警级别、是否需要提醒、
 * 建议处理动作、处理时效、提醒方式、排序、启用、备注。
 * 导入后按需执行 store-violations:recalc-alerts 让存量记录套用新字典。
 */
class ImportStoreViolationRules extends Command
{
    protected $signature = 'store-violations:import-rules
        {file : xlsx / xls / csv 文件路径}
        {--dry-run : 只解析并统计，不写库}';

    protected $description = '导入违规字典（预警级别、提醒规则等）';

    private const HEADERS = [
        'platform' => ['平台', 'platform'],
        'violation_category' => ['违规分类', '分类', 'violation_category'],
        'violation_type' => ['违规类型', '类型', 'violation_type'],
        'match_keywords' => ['匹配关键词', '关键词', 'match_keywords'],
        'alert_level' => ['预警级别', '级别', '预警等级', 'alert_level'],
        'needs_alert' => ['是否需要提醒', '需提醒', '需要提醒', 'needs_alert'],
        'suggested_action' => ['建议处理动作', '处理建议', '建议动作', 'suggested_action'],
        'handling_hours' => ['处理时效', '时效', 'handling_hours'],
        'remind_channel' => ['提醒方式', 'remind_channel'],
        'sort' => ['排序', 'sort'],
        'enabled' => ['启用', 'enabled'],
        'remark' => ['备注', 'remark'],
    ];

    private const PLATFORM_MAP = [
        '淘系' => 'taobao', '淘宝' => 'taobao', '天猫' => 'taobao',
        '京东' => 'jd', '京喜' => 'jingxi', '抖音' => 'douyin',
        '拼多多' => 'pinduoduo', '阿里巴巴' => 'alibaba',
    ];

    public function handle(): int
    {
        $file = (string) $this->argument('file');
        if (! is_file($file)) {
            $this->error('文件不存在：' . $file);

            return self::FAILURE;
        }

        try {
            $reader = IOFactory::createReaderForFile($file);
            if (method_exists($reader, 'setReadDataOnly')) {
                $reader->setReadDataOnly(true);
            }
            if (method_exists($reader, 'setReadFilter')) {
                // 字典文件通常只有几十行；部分导出文件带巨大空白维度，限制读取范围。
                $reader->setReadFilter(new class implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter {
                    public function readCell($columnAddress, $row, $worksheetName = ''): bool
                    {
                        return $row <= 5000;
                    }
                });
            }
            $matrix = $reader->load($file)->getActiveSheet()->toArray(null, true, true, false);
        } catch (Throwable $exception) {
            $this->error('无法读取文件：' . $exception->getMessage());

            return self::FAILURE;
        }

        if ($matrix === []) {
            $this->error('文件为空。');

            return self::FAILURE;
        }

        $map = [];
        foreach ($matrix[0] as $index => $cell) {
            $label = mb_strtolower(trim((string) $cell));
            foreach (self::HEADERS as $key => $aliases) {
                foreach ($aliases as $alias) {
                    if ($label === mb_strtolower($alias)) {
                        $map[$key] = $index;
                        break 2;
                    }
                }
            }
        }

        if (! isset($map['platform'], $map['violation_type'])) {
            $this->error('缺少必需表头：平台、违规类型。');

            return self::FAILURE;
        }

        $connection = DB::connection((string) config('upstream_mirrors.connection', 'business_mirror'));
        if (! app(StoreViolationRuleRepository::class)->available()) {
            $this->error('违规字典表尚未建立，请先执行数据库迁移。');

            return self::FAILURE;
        }

        $created = 0;
        $updated = 0;
        $skipped = 0;
        $sort = 0;

        foreach (array_slice($matrix, 1) as $row) {
            $value = static fn (string $key): string => isset($map[$key]) ? trim((string) ($row[$map[$key]] ?? '')) : '';

            $platform = $value('platform');
            $platform = self::PLATFORM_MAP[$platform] ?? mb_strtolower($platform);
            $type = $value('violation_type');
            if ($platform === '' || $type === '') {
                $skipped++;
                continue;
            }

            $sort += 10;

            $levelRaw = strtoupper($value('alert_level'));
            $level = in_array($levelRaw, ['P0', 'P1', 'P2'], true) ? $levelRaw : null;

            $needsAlertRaw = mb_strtolower($value('needs_alert'));
            $needsAlert = ! in_array($needsAlertRaw, ['否', 'no', '0', 'false'], true);

            $hoursRaw = $value('handling_hours');
            $hours = is_numeric($hoursRaw) ? max((int) $hoursRaw, 0) : null;

            $payload = [
                'platform' => $platform,
                'violation_category' => $value('violation_category') !== '' ? mb_substr($value('violation_category'), 0, 64) : null,
                'violation_type' => mb_substr($type, 0, 500),
                'match_keywords' => $value('match_keywords') !== '' ? mb_substr($value('match_keywords'), 0, 500) : null,
                'alert_level' => $needsAlert ? $level : null,
                'needs_alert' => $needsAlert ? 1 : 0,
                'suggested_action' => $value('suggested_action') !== '' ? mb_substr($value('suggested_action'), 0, 500) : null,
                'handling_hours' => $hours,
                'remind_channel' => $value('remind_channel') !== '' ? mb_substr($value('remind_channel'), 0, 191) : null,
                'sort' => is_numeric($value('sort')) ? (int) $value('sort') : $sort,
                'enabled' => ! in_array(mb_strtolower($value('enabled')), ['否', 'no', '0', 'false'], true) ? 1 : 0,
                'remark' => $value('remark') !== '' ? mb_substr($value('remark'), 0, 191) : null,
                'updated_at' => now(),
            ];

            $exists = $connection->table(StoreViolationRuleRepository::TABLE)
                ->where('platform', $platform)
                ->where('violation_type', $payload['violation_type'])
                ->exists();

            if ($this->option('dry-run')) {
                $exists ? $updated++ : $created++;
                continue;
            }

            if ($exists) {
                $connection->table(StoreViolationRuleRepository::TABLE)
                    ->where('platform', $platform)
                    ->where('violation_type', $payload['violation_type'])
                    ->update($payload);
                $updated++;
            } else {
                $connection->table(StoreViolationRuleRepository::TABLE)->insert($payload + [
                    'created_at' => now(),
                ]);
                $created++;
            }
        }

        $this->info(sprintf(
            '字典导入%s：新增 %d 条，更新 %d 条，跳过 %d 条。',
            $this->option('dry-run') ? '（试运行，未写库）' : '完成',
            $created,
            $updated,
            $skipped,
        ));
        $this->line('提示：需要让存量记录套用新字典时，执行 store-violations:recalc-alerts。');

        return self::SUCCESS;
    }
}