<?php

namespace Modules\BiddingManagement\Http\Controllers;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Modules\BiddingManagement\Enums\BidPackageStatus;
use Modules\BiddingManagement\Models\BidInvitation;
use Modules\BiddingManagement\Models\BidPackage;
use Modules\ContractorManagement\Models\Contractor;

class BidInvitationController extends Controller
{
    public function store(Request $request, BidPackage $bid)
    {
        abort_unless(
            in_array($bid->status, [BidPackageStatus::Draft, BidPackageStatus::Open]),
            403,
            'Invitations can only be added to draft or open packages.'
        );

        $validated = $request->validate([
            'contractor_ids'   => 'required|array|min:1',
            'contractor_ids.*' => 'required|string',
        ]);

        $added = 0;
        foreach ($validated['contractor_ids'] as $ulid) {
            $contractorId = Contractor::resolveUlidToId($ulid);
            if (!$contractorId) {
                continue;
            }

            // Skip duplicates
            $exists = $bid->invitations()->where('contractor_id', $contractorId)->exists();
            if ($exists) {
                continue;
            }

            $bid->invitations()->create([
                'contractor_id' => $contractorId,
                'status'        => 'invited',
                'invited_at'    => now(),
            ]);
            $added++;
        }

        return back()->with('success', "{$added} contractor(s) invited.");
    }

    public function destroy(BidInvitation $invitation)
    {
        abort_unless(
            in_array($invitation->package->status, [BidPackageStatus::Draft, BidPackageStatus::Open]),
            403,
            'Cannot remove invitations at this stage.'
        );

        abort_if($invitation->submission()->exists(), 422, 'Cannot remove an invitation that has a submission.');

        $invitation->delete();

        return back()->with('success', 'Invitation removed.');
    }

    public function accept(BidInvitation $invitation)
    {
        abort_unless($invitation->package->status === BidPackageStatus::Open, 403, 'Bid package is not open.');
        abort_if($invitation->status === 'declined', 422, 'You have already declined this invitation.');

        $invitation->accept();

        return back()->with('success', 'You have accepted the bid invitation.');
    }

    public function decline(Request $request, BidInvitation $invitation)
    {
        abort_unless($invitation->package->status === BidPackageStatus::Open, 403, 'Bid package is not open.');

        $validated = $request->validate([
            'reason' => 'nullable|string|max:500',
        ]);

        $invitation->decline($validated['reason'] ?? null);

        return back()->with('success', 'You have declined the bid invitation.');
    }
}