<?php

namespace App\Http\Controllers\Business;

use App\Models\Business\CourierQuoteSignature;
use App\Models\Business\CourierQuoteVersion;
use App\Services\Esign\EsignClient;
use App\Support\CourierQuoteSignatureService;
use App\Utilities\SystemAccess;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Illuminate\Validation\ValidationException;
use Symfony\Component\HttpFoundation\StreamedResponse;

class CourierQuoteSignatures extends Controller
{
    public function __construct(private readonly CourierQuoteSignatureService $service)
    {
    }

    public function prepare(Request $request, CourierQuoteVersion $quoteVersion): RedirectResponse
    {
        $this->ensureCanManage();
        abort_unless($quoteVersion->status === 'approved', 422, '只有已审核报价版本可以生成签署文件。');
        $data = $request->validate([
            'signature_date' => ['required', 'date'],
        ]);
        $signature = $this->service->prepareVersion($quoteVersion, user_id(), $data['signature_date']);

        return redirect()->route('business.courier-quote-changes.show', $quoteVersion->source_change_id)
            ->with('success', "{$quoteVersion->version_code} 的签署 PDF 已生成，文件校验值已固定。")
            ->with('signature_id', $signature->id);
    }

    public function send(Request $request, CourierQuoteSignature $quoteSignature): RedirectResponse
    {
        $this->ensureCanManage();
        abort_unless($quoteSignature->version?->status === 'approved', 422, '只有已审核报价版本可以发起签署。');
        abort_unless(EsignClient::configured(), 422, 'E 签宝沙箱尚未配置 App ID 或 AppSecret。');
        $data = $request->validate([
            'organization_name' => ['required', 'string', 'min:2', 'max:255'],
            'operator_name' => ['required', 'string', 'min:2', 'max:100'],
            'operator_account' => ['required', 'string', 'max:255'],
            'notice_type' => ['required', 'in:1,2'],
            'signature_date' => ['required', 'date'],
            'expires_at' => ['required', 'date', 'after:now', 'before_or_equal:' . now()->addDays(90)->toDateTimeString()],
        ]);
        $this->validateAccountForNotice($data['operator_account'], $data['notice_type']);
        $quoteSignature = $this->service->prepareVersion(
            $quoteSignature->version,
            user_id(),
            $data['signature_date'],
        );
        $signature = $this->service->send($quoteSignature, $data, user_id());
        $environment = $signature->environment === 'sandbox' ? '沙箱' : '正式环境';

        return redirect()->route('business.courier-quote-changes.show', $signature->version->source_change_id)
            ->with('success', "{$signature->version->version_code} 已推送到 E 签宝{$environment}，等待快递公司签署。");
    }

    public function synchronize(CourierQuoteSignature $quoteSignature): RedirectResponse
    {
        $this->ensureCanManage();
        $signature = $this->service->synchronize($quoteSignature, user_id());
        $message = $signature->status === CourierQuoteSignature::STATUS_ARCHIVED
            ? '签署完成，签署 PDF 和完成证书已私有归档。'
            : "已同步 E 签宝状态：{$signature->statusLabel()}。";

        return redirect()->route('business.courier-quote-changes.show', $signature->version->source_change_id)
            ->with('success', $message);
    }

    public function download(CourierQuoteSignature $quoteSignature, string $kind): StreamedResponse
    {
        [$path, $suffix] = match ($kind) {
            'source' => [$quoteSignature->source_pdf_path, '报价签署原文'],
            'signed' => [$quoteSignature->signed_pdf_path, '已签署报价'],
            'certificate' => [$quoteSignature->certificate_path, '签署完成证书'],
            default => abort(404),
        };

        abort_if(blank($path) || ! \Storage::disk('uploads')->exists($path), 404, '归档文件不存在。');
        $fileName = $quoteSignature->version->version_code . '-' . $suffix . '.pdf';

        return \Storage::disk('uploads')->download($path, $fileName, ['Content-Type' => 'application/pdf']);
    }

    private function validateAccountForNotice(string $account, string $noticeType): void
    {
        $valid = $noticeType === '1'
            ? preg_match('/^1\d{10}$/', $account) === 1
            : filter_var($account, FILTER_VALIDATE_EMAIL) !== false;

        if (! $valid) {
            $message = $noticeType === '1' ? '短信通知必须填写 11 位手机号。' : '邮件通知必须填写有效邮箱。';
            throw ValidationException::withMessages(['operator_account' => $message]);
        }
    }

    private function ensureCanManage(): void
    {
        abort_unless(
            in_array(SystemAccess::roleName(user()), [SystemAccess::SUPER_ADMIN, SystemAccess::ADMIN], true),
            403,
            '当前账号没有报价签署管理权限。',
        );
    }
}