<?php
// RMLWorkorderController.php

class RMLWorkorderController extends TTCrud
{
    protected string $headerTitle = 'RML Arbeitsaufträge';
    protected bool $createText = false; // Workorders are created automatically

    protected array $columns = [
        ['key' => 'id', 'text' => 'Auftrag-Nr.'],
        ['key' => 'preorderInfo', 'text' => 'Kunde / Projekt', 'modal' => false, 'table' => ['sortable' => false, 'filter' => false]],
        ['key' => 'companyName', 'text' => 'Zuständige Firma', 'modal' => false, 'table' => ['filter' => 'search']],
        ['key' => 'status', 'text' => 'Status', 'modal' => ['items' => [
            ['value' => 'new', 'text' => 'Neu', 'icon' => 'fas fa-star text-primary'],
            ['value' => 'assigned', 'text' => 'Zugewiesen', 'icon' => 'fas fa-user-check text-info'],
            ['value' => 'scheduled', 'text' => 'Terminiert', 'icon' => 'fas fa-calendar-check text-warning'],
            ['value' => 'documented', 'text' => 'Dokumentiert', 'icon' => 'fas fa-file-alt text-success'],
            ['value' => 'completed', 'text' => 'Abgeschlossen', 'icon' => 'fas fa-check-double text-secondary'],
        ]], 'table' => ['filter' => 'iconSelect']],
        ['key' => 'deadlineDate', 'text' => 'Deadline', 'modal' => false, 'table' => ['filter' => 'date']],
        ['key' => 'appointmentDate', 'text' => 'Termin', 'modal' => false, 'table' => ['filter' => 'date']],
        ['key' => 'actions', 'text' => 'Aktionen', 'modal' => false, 'table' => ['filter' => false, 'sortable' => false]],
    ];
    
    protected array $additionalJSVariables = ['RML_ADMIN' => '0', 'COMPANY_ID' => '0'];

    protected function prepareCrudConfig() {
        // Assume 'RMLAdmin' is a permission.
        if ($this->user->can('RMLAdmin')) {
            $this->additionalJSVariables['RML_ADMIN'] = '1';
        } else {
            // If not an admin, find the user's associated company ID
            $company = RMLWorkorderCompanyModel::getAll(['addressId' => $this->user->address_id], 1);
            if ($company) {
                $this->additionalJSVariables['COMPANY_ID'] = $company[0]->id;
            } else {
                // If user is not an RML admin and not linked to a company, they see nothing.
                $this->sendError('Access Denied. You are not associated with a registered RML company.', 403);
            }
        }
    }

    protected function getAction()
    {
        // First, automatically create workorders for any new preorders with status 220.
        // In a production environment, this might be a separate cron job.
        $this->createWorkordersFromPreorders();
        
        $json = json_decode(file_get_contents('php://input'), true);
        $pagination = $json['pagination'] ?? ['page' => 1, 'per_page' => 10];
        $filters = $json['filters'] ?? [];
        $order = $json['order'] ?? ['key' => 'id', 'order' => 'DESC'];

        // If user is a company, filter by their companyId
        if ($this->user->can('RMLAdmin') === false) {
             $company = RMLWorkorderCompanyModel::getAll(['addressId' => $this->user->address_id], 1);
             if($company) {
                $filters['companyId'] = $company[0]->id;
             }
        }
        
        $workorders = RMLWorkorderModel::getAll($filters, $pagination['per_page'], ($pagination['page'] - 1) * $pagination['per_page'], $order);
        $totalCount = RMLWorkorderModel::count($filters);
        
        // Enhance rows with data from other tables
        $rows = [];
        foreach($workorders as $workorder) {
            $row = (array)$workorder;
            
            $preorder = new Preorder($workorder->preorderId); // Placeholder for actual Preorder retrieval
            $anschlussadresse = '';
            if ($preorder->building_id) {
                $anschlussadresse = "{$preorder->building->street}<br />{$preorder->building->zip} {$preorder->building->city}";
            } elseif ($preorder->adb_hausnummer_id) {
                $anschlussadresse = "{$preorder->adb_hausnummer->strasse->name} {$preorder->adb_hausnummer->hausnummer}";
                if ($preorder->adb_hausnummer->stiege) {
                    $anschlussadresse .= "/{$preorder->adb_hausnummer->stiege}";
                }
                if ($preorder->adb_wohneinheit_id && (string)$preorder->adb_wohneinheit) {
                    $anschlussadresse .= "<br />{$preorder->adb_wohneinheit}";
                }
                $anschlussadresse .= "<br />{$preorder->adb_hausnummer->plz->plz} {$preorder->adb_hausnummer->ortschaft->name}";
            }

            $kunde = ($preorder->company) ? $preorder->company : "{$preorder->firstname} {$preorder->lastname}";
            $kunde .= "<br />{$preorder->street}";
            if ($preorder->housenumber) {
                $kunde .= " {$preorder->housenumber}";
            }
            $kunde .= "<br />{$preorder->zip} {$preorder->city}";

            $kontakt = ($preorder->phone) ? "{$preorder->phone}<br />" : '';
            $kontakt .= ($preorder->email) ? $preorder->email : '';

            $row['preorderInfo'] = "Anschlussadresse: {$anschlussadresse}<br />" .
                "Kunde: {$kunde}<br />" .
                "Kontakt: {$kontakt}<br />" .
                "OAID: <span class='text-pink'>{$preorder->oaid}</span>";

            // Get Company Name
            if($workorder->companyId) {
                $company = RMLWorkorderCompanyModel::get($workorder->companyId);
                $row['companyName'] = $company->name ?? 'N/A';
            } else {
                $row['companyName'] = 'Nicht zugewiesen';
            }
            
            $rows[] = $row;
        }

        $pagination = [
            'page' => $pagination['page'],
            'per_page' => $pagination['per_page'],
            'filtered_available' => $totalCount,
            'total_rows' => $totalCount,
        ];

        self::returnJson([
            'rows' => $rows,
            'pagination' => $pagination
        ]);
    }

    private function createWorkordersFromPreorders() {
        // Fetch all active preorders where the status code is 220
        $newPreorders = PreorderModel::searchActive(['status_code' => 220]);

        // If no new preorders are found, there's nothing to do
        if (empty($newPreorders)) {
            return;
        }

        // Iterate through each preorder that needs a workorder
        foreach ($newPreorders as $preorder) {
            // Check if a workorder for this preorder already exists to prevent duplicates
            $existingWorkorder = RMLWorkorderModel::getFirst(['preorderId' => $preorder->id]);

            // If no workorder exists, create a new one
            if (!$existingWorkorder) {
                RMLWorkorderModel::create([
                    'preorderId' => $preorder->id,
                    'status'     => 'new',
                    'create'     => time(),
                    'createBy'   => $this->user->id // The logged-in user creating the record
                ]);
            }
        }
    }

    protected function assignWorkorderAction() {
        if (!$this->user->can('RMLAdmin')) self::sendError("Permission denied.", 403);
        
        $post = json_decode(file_get_contents('php://input'), true);
        if (empty($post['workorderId']) || empty($post['companyId'])) {
            self::sendError("Required fields are missing.");
        }

        if (!$rmlWorkorder = RMLWorkorderModel::get($post['workorderId'])) self::sendError("Workorder not found.");

        RMLWorkorderModel::update(
            array_merge((array) $rmlWorkorder, [
                'id' => $post['workorderId'],
                'companyId' => $post['companyId'],
                'status' => 'assigned',
                'assignmentDate' => time(),
                'deadlineDate' => strtotime('+6 weeks')
            ])
        );
        
        self::returnJson(['success' => true, 'message' => 'Auftrag erfolgreich zugewiesen.']);
    }

    protected function scheduleAppointmentAction() {
        $post = json_decode(file_get_contents('php://input'), true);
        if (empty($post['workorderId']) || empty($post['appointmentDate'])) {
            self::sendError("Required fields are missing.");
        }
        
        RMLWorkorderModel::update([
            'id' => $post['workorderId'],
            'appointmentDate' => $post['appointmentDate'],
            'status' => 'scheduled'
        ]);

        self::returnJson(['success' => true, 'message' => 'Termin erfolgreich gespeichert.']);
    }

    protected function uploadDocumentationAction()
    {
        $file = $_FILES['file'] ?? null;
        if (!$file || $file['error'] !== UPLOAD_ERR_OK) {
            self::returnJson(['error' => 'File upload failed']);
            return;
        }
        
        $workorderId = $_POST['workorderId'] ?? null;
        $description = $_POST['description'] ?? '';
        $documentType = $_POST['documentType'] ?? 'general';

        if(!$workorderId) {
             self::returnJson(['error' => 'Workorder ID is missing.']);
             return;
        }

        try {
            $uploaded = mfUpload::handleFormUpload("file", false, "/RMLWorkorder");
            
            RMLWorkorderDocumentationModel::create([
                'workorderId' => $workorderId,
                'fileId' => $uploaded->id,
                'description' => $description,
                'documentType' => $documentType,
                'create' => time(),
                'createBy' => $this->user->id
            ]);

            // Set status to 'documented' if it was 'scheduled' or 'assigned'
            $workorder = RMLWorkorderModel::get($workorderId);
            if(in_array($workorder->status, ['assigned', 'scheduled'])) {
                RMLWorkorderModel::update(['id' => $workorderId, 'status' => 'documented']);
            }
            
            self::returnJson(['success' => true, 'fileId' => $uploaded->id, 'fileName' => $file['name']]);
        } catch (Exception $e) {
            self::returnJson(['error' => 'Upload error: ' . $e->getMessage()]);
        }
    }
    
    protected function getDocumentationAction() {
        if(empty($this->request->workorderId)) self::sendError("Workorder ID missing.");
        
        $docs = RMLWorkorderDocumentationModel::getAll(['workorderId' => $this->request->workorderId]);
        // Enhance with file names
        foreach($docs as $doc) {
            $file = new File($doc->fileId);
            $doc->fileName = $file->filename;
        }
        self::returnJson($docs);
    }
    
    protected function completeWorkorderAction() {
        $post = json_decode(file_get_contents('php://input'), true);
        if(empty($post['workorderId'])) self::sendError("Workorder ID missing.");

        $workorder = RMLWorkorderModel::get($post['workorderId']);
        if(!$workorder) self::sendError("Workorder not found.");
        
        // Update Preorder status to 245
        // PreorderModel::update(['id' => $workorder->preorderId, 'status_code' => 245]);

        // Update Workorder status
        RMLWorkorderModel::update([
            'id' => $workorder->id,
            'status' => 'completed'
        ]);

        self::returnJson(['success' => true, 'message' => 'Auftrag abgeschlossen. Preorder wurde aktualisiert.']);
    }
    
    // Action to get companies for the assignment modal
    protected function getCompaniesAction() {
        if(!$this->user->can('RMLAdmin')) self::sendError("Permission denied.", 403);
        $companies = RMLWorkorderCompanyModel::getAll();
        $items = array_map(fn($c) => ['value' => $c->id, 'text' => $c->name], $companies);
        self::returnJson($items);
    }
}