<?php

namespace App\Http\Controllers\Business;

use App\Models\Common\Company;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Routing\Controller;
use Illuminate\Validation\ValidationException;
use Illuminate\View\View;
use Modules\EcommerceFinance\Services\SupplierNegativeAlertDingTalkWorkflow;

class SupplierNegativeAlertDingTalkForms extends Controller
{
    public function __construct(
        private readonly SupplierNegativeAlertDingTalkWorkflow $workflow,
    ) {
    }

    public function show(string $token): View|Response
    {
        $assignment = $this->resolve($token);
        if ($assignment === null) {
            return $this->unavailable();
        }

        $snapshot = json_decode((string) $assignment->snapshot, true);
        $snapshot = is_array($snapshot) ? array_values($snapshot) : [];

        return view('business.pages.negative-alerts.dingtalk-task', [
            'assignment' => $assignment,
            'suppliers' => $snapshot,
            'latestPeriod' => $this->workflow->latestPeriodSummary($snapshot),
            'supplierResults' => $this->workflow->resultsForAssignment((int) $assignment->id),
            'token' => $token,
        ]);
    }

    public function update(Request $request, string $token): RedirectResponse|Response
    {
        $assignment = $this->resolve($token);
        if ($assignment === null) {
            return $this->unavailable();
        }
        $snapshot = json_decode((string) $assignment->snapshot, true);
        $supplierCount = is_array($snapshot) ? count($snapshot) : 0;

        $data = $request->validate([
            'results' => ['required', 'array', 'size:' . $supplierCount],
            'results.*' => ['required', 'string', 'max:2000'],
        ], [
            'results.required' => '请为每个供应商填写处理结果。',
            'results.size' => '请为每个供应商填写处理结果。',
            'results.*.required' => '请为每个供应商填写处理结果。',
            'results.*.max' => '单个供应商的处理结果不能超过 2000 个字符。',
        ]);

        try {
            $this->workflow->submit($token, array_values((array) $data['results']));
        } catch (ValidationException $exception) {
            throw $exception;
        }

        return redirect()
            ->route('supplier-negative-alert.task', ['token' => $token])
            ->with('negative_alert_success', '处理结果已回传财务系统，可以继续修改并再次提交。');
    }

    private function resolve(string $token): ?object
    {
        $assignment = $this->workflow->findByToken($token);
        if ($assignment === null) {
            return null;
        }

        Company::find($assignment->company_id)?->makeCurrent();

        return $assignment;
    }

    private function unavailable(): Response
    {
        return response()->view('business.pages.negative-alerts.dingtalk-task-unavailable', [], 404);
    }
}