<?php

namespace Modules\Maintenance\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Illuminate\Support\Facades\Schema;
use Modules\Maintenance\Http\Controllers\Concerns\AuthorizesMaintenance;
use Modules\Maintenance\Models\DispatchBoardEntry;
use Modules\Maintenance\Models\WorkOrder;
use Modules\Maintenance\Utils\MaintenanceUtil;

class DispatchBoardController extends Controller
{
    use AuthorizesMaintenance;

    public function __construct(
        protected MaintenanceUtil $maintenanceUtil
    ) {
    }

    public function index(Request $request)
    {
        $this->authorizeMaintenanceAccess('maintenance.mission.view');

        if (! Schema::hasTable('maintenance_dispatch_board')) {
            return view('maintenance::dispatch_board.index', [
                'entries' => collect(),
                'users' => [],
                'work_orders' => [],
                'schema_missing' => true,
            ]);
        }

        $business_id = $this->maintenanceUtil->getBusinessId();

        $entries = DispatchBoardEntry::where('business_id', $business_id)
            ->with(['workOrder.equipment', 'technician:id,first_name,last_name'])
            ->orderBy('scheduled_start')
            ->get();

        return view('maintenance::dispatch_board.index', [
            'entries' => $entries,
            'users' => $this->maintenanceUtil->getUsersDropdown($business_id),
            'work_orders' => WorkOrder::where('business_id', $business_id)
                ->whereIn('status', ['open', 'in_progress'])
                ->orderByDesc('created_at')
                ->limit(100)
                ->pluck('work_order_number', 'id'),
            'schema_missing' => false,
        ]);
    }

    public function store(Request $request)
    {
        $this->authorizeMaintenanceAccess('maintenance.mission.manage');

        $business_id = $this->maintenanceUtil->getBusinessId();

        $data = $request->validate([
            'work_order_id' => 'required|exists:maintenance_work_orders,id',
            'technician_id' => 'nullable|exists:users,id',
            'scheduled_start' => 'nullable|string',
            'scheduled_end' => 'nullable|string',
            'priority' => 'nullable|string|in:low,medium,high,critical',
            'notes' => 'nullable|string',
        ]);

        DispatchBoardEntry::create([
            'business_id' => $business_id,
            'work_order_id' => $data['work_order_id'],
            'technician_id' => $data['technician_id'] ?? null,
            'scheduled_start' => $this->maintenanceUtil->parseInputDateTime($data['scheduled_start'] ?? null),
            'scheduled_end' => $this->maintenanceUtil->parseInputDateTime($data['scheduled_end'] ?? null),
            'priority' => $data['priority'] ?? 'medium',
            'dispatch_status' => 'planned',
            'notes' => $data['notes'] ?? null,
        ]);

        return $this->maintenanceUtil->jsonOrRedirect($request, true, 'اعزام ثبت شد.', action([self::class, 'index']));
    }

    public function update(Request $request, $id)
    {
        $this->authorizeMaintenanceAccess('maintenance.mission.manage');

        $business_id = $this->maintenanceUtil->getBusinessId();
        $entry = DispatchBoardEntry::where('business_id', $business_id)->findOrFail($id);

        $data = $request->validate([
            'technician_id' => 'nullable|exists:users,id',
            'dispatch_status' => 'sometimes|string|in:planned,dispatched,en_route,on_site,done',
            'scheduled_start' => 'nullable|string',
            'scheduled_end' => 'nullable|string',
            'notes' => 'nullable|string',
        ]);

        if (isset($data['scheduled_start'])) {
            $data['scheduled_start'] = $this->maintenanceUtil->parseInputDateTime($data['scheduled_start']);
        }
        if (isset($data['scheduled_end'])) {
            $data['scheduled_end'] = $this->maintenanceUtil->parseInputDateTime($data['scheduled_end']);
        }

        $entry->update($data);

        return $this->maintenanceUtil->jsonOrRedirect($request, true, 'به‌روزرسانی شد.', action([self::class, 'index']));
    }
}