<?php

namespace Modules\EcommerceFinance\Repositories;

use Illuminate\Database\Query\Builder;
use Modules\EcommerceFinance\Services\BusinessMirrorDatasetRegistry;
use RuntimeException;

/** 工作平台供应商主档案，HTTP 请求仅访问共享镜像。 */
class SupplierManagementMirrorRepository
{
    public const DATASET = 'jiansun.dbo.js_supplier_View';

    public const RELATED = [
        'contracts' => 'jiansun.dbo.js_supplier_contract_View',
        'contacts' => 'jiansun.dbo.js_supplier_linkers',
        'payments' => 'jiansun.dbo.js_supplier_payinfo',
    ];

    public const COLUMNS = [
        'sourcefrom' => '数据来源', 'coopersgn' => '是否合作', 'scmcode' => '供应商代码',
        'scmname' => '供应商名称', 'scmtype' => '供应商类型', 'tradebody' => '合同主体',
        'company' => '签订公司', 'enterpriseType' => '企业类型', 'creditcode' => '社会信用代码',
        'accountbankno' => '电子合同经办人', 'buyer' => '采购人员',
    ];

    public function __construct(
        private readonly BusinessMirrorDatasetRegistry $datasets,
        private readonly GenericBusinessMirrorRepository $mirror,
    ) {
    }

    public function ready(): bool
    {
        return $this->mirror->ready($this->datasets->get(self::DATASET));
    }

    public function state(): ?array
    {
        return $this->mirror->state($this->datasets->get(self::DATASET));
    }

    /** 正式供应商签署资料；accountbankno 是上游电子合同账号，handlePerson 是实名姓名。 */
    public function signingOptions(): array
    {
        if (! $this->signingReady()) return [];
        return $this->mirror->connection()->table($this->datasets->get(self::DATASET)->targetTable())
            ->orderBy('scmname')->orderBy('Id')
            ->get(['Id', 'scmname', 'scmcode', 'tradebody', 'accountbankno', 'handlePerson'])
            ->map(static fn (object $row): array => [
                'id' => (int) $row->Id, 'value' => trim((string) $row->scmname),
                'code' => trim((string) $row->scmcode), 'company' => trim((string) $row->tradebody),
                'account' => trim((string) $row->accountbankno), 'operator' => trim((string) $row->handlePerson),
            ])->all();
    }

    public function signingSupplier(int $id): ?object
    {
        if (! $this->signingReady()) return null;
        return $this->mirror->connection()->table($this->datasets->get(self::DATASET)->targetTable())
            ->where('Id', $id)->first(['Id', 'scmname', 'tradebody', 'accountbankno', 'handlePerson']);
    }

    private function signingReady(): bool
    {
        return $this->ready() && $this->mirror->connection()->getSchemaBuilder()
            ->hasColumn($this->datasets->get(self::DATASET)->targetTable(), 'accountbankno');
    }

    public function paginate(array $filters, int $page, int $limit): array
    {
        $query = $this->query($filters);

        return [
            'total' => (clone $query)->count(),
            'rows' => $query->orderBy('scmname')->orderBy('Id')
                ->forPage(max($page, 1), min(max($limit, 1), 100))->get()->all(),
        ];
    }

    /** 全部筛选结果，按上游稳定键小批读取，保留编码/账号文本。 */
    public function exportRows(array $filters): \Generator
    {
        $lastId = 0;
        do {
            $rows = $this->query($filters)->where('Id', '>', $lastId)->orderBy('Id')->limit(500)->get();
            foreach ($rows as $row) {
                $lastId = (int) $row->Id;
                yield $row;
            }
        } while ($rows->count() === 500);
    }

    /** 详情以已选供应商关联，不能在未选择时显示全体账户或合同。 */
    public function details(object $supplier, string $tab, int $page, int $limit): array
    {
        if (! array_key_exists($tab, self::RELATED)) {
            return ['ready' => false, 'rows' => [], 'total' => 0,
                'message' => '工作平台操作日志的供应商关联尚未确认，暂不展示。'];
        }
        $dataset = $this->datasets->get(self::RELATED[$tab]);
        if (! $this->mirror->ready($dataset)) {
            return ['ready' => false, 'rows' => [], 'total' => 0, 'message' => '该详情资料尚未完成首次同步。'];
        }
        $query = $this->mirror->connection()->table($dataset->targetTable());
        if ($tab === 'contracts') {
            if (trim((string) $supplier->tradebody) === '' || trim((string) $supplier->company) === '') {
                return ['ready' => true, 'rows' => [], 'total' => 0,
                    'message' => '该供应商未维护合同主体或签订公司，无法准确匹配合同。'];
            }
            $query->where('tradebody', $supplier->tradebody)->where('company', $supplier->company);
            $query->orderByDesc('sendTime')->orderBy('id');
        } else {
            if (trim((string) $supplier->scmname) === '') {
                return ['ready' => true, 'rows' => [], 'total' => 0, 'message' => '该供应商未维护名称，无法准确匹配详情。'];
            }
            $query->where('scmname', $supplier->scmname)->orderBy('Id');
        }

        return ['ready' => true, 'total' => (clone $query)->count(),
            'rows' => $query->forPage(max($page, 1), min(max($limit, 1), 100))->get()->all(),
            'message' => null];
    }

    private function query(array $filters): Builder
    {
        if (! $this->ready()) {
            throw new RuntimeException('supplier_management_mirror_not_ready');
        }
        $query = $this->mirror->connection()->table($this->datasets->get(self::DATASET)->targetTable());
        foreach (['supplier_name' => 'scmname', 'buyer' => 'buyer'] as $key => $column) {
            if (($filters[$key] ?? '') !== '') {
                $value = '%' . str_replace(['!', '%', '_'], ['!!', '!%', '!_'], $filters[$key]) . '%';
                $query->whereRaw($column . " LIKE ? ESCAPE '!'", [$value]);
            }
        }
        if (in_array($filters['cooperation_status'] ?? '', ['1', '2'], true)) {
            $query->where('coopersgn', (int) $filters['cooperation_status']);
        }

        return $query;
    }
}