<?php

class WorkorderMphBaseController extends TTCrud
{
    protected array $statusColumn = [
        'key' => 'status', 'text' => 'Status', 'modal' => false, 'table' => ['filter' => 'iconSelect', 'filterOptions' => [
            ['value' => 'new', 'text' => 'Neu', 'icon' => 'fas fa-star text-primary'],
            ['value' => 'assigned', 'text' => 'Zugewiesen', 'icon' => 'fas fa-user-check text-info'],
            ['value' => 'scheduled', 'text' => 'Geplant', 'icon' => 'fas fa-calendar-check text-warning'],
            ['value' => 'in_progress', 'text' => 'In Bearbeitung', 'icon' => 'fas fa-cog text-warning'],
            ['value' => 'documented', 'text' => 'Dokumentiert', 'icon' => 'fas fa-file-alt text-success'],
            ['value' => 'completed', 'text' => 'Abgeschlossen', 'icon' => 'fas fa-check-double text-secondary'],
            ['value' => 'cancelled', 'text' => 'Abgebrochen', 'icon' => 'fas fa-ban text-danger'],
            ['value' => 'archived', 'text' => 'Archiviert', 'icon' => 'fas fa-archive text-muted'],
        ]]
    ];

    protected array $additionalJS = ["js/pages/WorkorderMphBase/WorkorderMphBase.js"];
    protected array $additionalHead = ["<link rel='stylesheet' href='/js/pages/WorkorderMphBase/WorkorderMphBase.css'>"];

    protected function getStatusText(string $statusKey): string
    {
        $statusMap = array_column($this->statusColumn['table']['filterOptions'] ?? [], 'text', 'value');
        return $statusMap[$statusKey] ?? ucfirst(str_replace('_', ' ', $statusKey));
    }

    //region SHARED ACTIONS
    /**
     * Fetches documentation and journal entries for a given workorder.
     */
    protected function getDocumentationAction()
    {
        if (empty($this->request->workorderMphId)) self::sendError("Arbeitsauftrags-ID fehlt.");

        $docs = WorkorderMphDocumentationModel::getAll(['workorderMphId' => intval($this->request->workorderMphId)], null, 0, ['key' => 'create', 'order' => 'ASC']);
        $journals = WorkorderMphJournalModel::getAll(['workorderMphId' => intval($this->request->workorderMphId)], null, 0, ['key' => 'create', 'order' => 'DESC']);

        $responseDocs = [];
        $typeCounts = [];

        foreach ($docs as $doc) {
            $file = new File($doc->fileId);
            $documentTypeKey = $doc->documentType;
            $typeCounts[$documentTypeKey] = ($typeCounts[$documentTypeKey] ?? 0) + 1;
            $originalFilename = $file->orig_filename ?? $file->filename;
            $extension = pathinfo($originalFilename, PATHINFO_EXTENSION);
            $newFilename = "{$documentTypeKey}_{$typeCounts[$documentTypeKey]}." . strtolower($extension);

            $responseDocs[] = [
                'id' => $doc->id,
                'fileId' => $doc->fileId,
                'fileName' => $newFilename,
                'description' => $doc->description,
                'documentType' => $documentTypeKey,
                'userName' => UserModel::getOne($doc->createBy)->name ?? 'Unbekannt',
                'mimetype' => $file->mimetype ?? 'application/octet-stream',
                'create' => $doc->create
            ];
        }

        foreach ($journals as $journal) {
            $journal->createByName = UserModel::getOne($journal->createBy)->name ?? 'Unbekannt';
        }

        self::returnJson(['docs' => $responseDocs, 'journals' => $journals]);
    }

    /**
     * Adds a new entry to a workorder's journal.
     */
    protected function addJournalAction()
    {
        $post = json_decode(file_get_contents('php://input'), true);
        if (empty($post['workorderMphId']) || empty(trim($post['text']))) self::sendError("Arbeitsauftrags-ID und Text sind erforderlich.");

        WorkorderMphJournalModel::create([
            'workorderMphId' => $post['workorderMphId'],
            'text' => $post['text'],
            'createBy' => $this->user->id,
            'create' => time()
        ]);

        $journals = WorkorderMphJournalModel::getAll(['workorderMphId' => intval($post['workorderMphId'])], null, 0, ['key' => 'create', 'order' => 'DESC']);
        foreach ($journals as $journal) {
            $journal->createByName = UserModel::getOne($journal->createBy)->name ?? 'Unbekannt';
        }
        self::returnJson(['success' => true, 'message' => 'Journaleintrag hinzugefügt.', 'journals' => $journals]);
    }

    /**
     * Updates the additional info field for a workorder.
     */
    protected function updateAdditionalInfoAction()
    {
        $post = json_decode(file_get_contents('php://input'), true);
        if (empty($post['workorderMphId'])) self::sendError("Arbeitsauftrags-ID fehlt.");
        $workorder = WorkorderMphModel::get($post['workorderMphId']);
        if (!$workorder) self::sendError("Arbeitsauftrag nicht gefunden.");

        $oldInfo = $workorder->additionalInfo;
        $newInfo = $post['additionalInfo'] ?? null;
        $workorder->additionalInfo = $newInfo;
        WorkorderMphModel::update((array)$workorder);

        WorkorderMphJournalModel::create([
            'workorderMphId' => $workorder->id,
            'text' => "Zusatzinfo geändert.\nAlt: '{$oldInfo}'\nNeu: '{$newInfo}'",
            'create' => time(),
            'createBy' => $this->user->id,
        ]);
        self::returnJson(['success' => true, 'message' => 'Zusatzinfo aktualisiert.', 'newInfo' => $newInfo]);
    }

    /**
     * Get all Wohneinheiten for a specific workorder with their statuses and notes
     */
    protected function getWohneinheitenAction()
    {
        if (empty($this->request->workorderMphId)) self::sendError("Arbeitsauftrags-ID fehlt.");

        $workorderMphId = intval($this->request->workorderMphId);
        $workorder = WorkorderMphModel::get($workorderMphId);
        if (!$workorder) self::sendError("Arbeitsauftrag nicht gefunden.");

        // Get all Wohneinheiten for this Hausnummer from addressdb
        $db = FronkDB::singleton(ADDRESSDB_DBHOST, ADDRESSDB_DBUSER, ADDRESSDB_DBPASS, ADDRESSDB_DBNAME);
        $hausnummerId = $db->escape($workorder->hausnummerId);

        // Fetch statuses from addressdb
        $statusSql = "SELECT id, code, name FROM Status WHERE type = 'wohneinheit' ORDER BY code ASC";
        $statusResult = $db->query($statusSql);
        $statuses = $statusResult ? $statusResult->fetch_all(MYSQLI_ASSOC) : [];
        
        $statusOptions = array_map(function($s) {
            return ['value' => intval($s['id']), 'text' => $s['code'] . ' - ' . $s['name'], 'code' => intval($s['code'])];
        }, $statuses);

        // Fetch Wohneinheiten directly
        $sql = "SELECT w.id, w.zusatz, w.tuer, w.contact, w.oaid, w.note, w.status_id, w.splice_hak_completed
                FROM Wohneinheit w
                WHERE w.hausnummer_id = $hausnummerId
                ORDER BY w.zusatz";
        $result = $db->query($sql);
        $wohneinheiten = $result ? $result->fetch_all(MYSQLI_ASSOC) : [];

        // Get Preorders for this Hausnummer to fallback contact info
        $preorders = [];
        if (class_exists('PreorderModel')) {
            $preorderList = PreorderModel::search(['adb_hausnummer_id' => $workorder->hausnummerId, 'deleted' => 0]);
            foreach ($preorderList as $preorder) {
                if ($preorder->adb_wohneinheit_id) {
                    $preorders[$preorder->adb_wohneinheit_id] = $preorder;
                }
            }
        }

        // Merge data
        $response = [];
        foreach ($wohneinheiten as $we) {
            // Contact info logic
            $contact = $we['contact'];
            $preorderContact = null;
            $preorderUcode = null;
            
            if (isset($preorders[$we['id']])) {
                $p = $preorders[$we['id']];
                $preorderUcode = $p->ucode;
                $pContact = trim($p->firstname . ' ' . $p->lastname);
                if ($p->phone) $pContact .= ' (' . $p->phone . ')';
                
                $preorderContact = $pContact;
                
                // If address contact is empty, use preorder contact
                if (empty($contact)) {
                    $contact = $pContact;
                }
            }

            $response[] = [
                'wohneinheitId' => intval($we['id']),
                'zusatz' => $we['zusatz'],
                'tuer' => $we['tuer'],
                'contact' => $contact,
                'preorderContact' => $preorderContact,
                'preorderUcode' => $preorderUcode,
                'oaid' => $we['oaid'],
                'status' => intval($we['status_id']),
                'spliceCompleted' => intval($we['splice_hak_completed'] ?? 0),
                'note' => $we['note'],
            ];
        }

        self::returnJson([
            'wohneinheiten' => $response, 
            'statusOptions' => $statusOptions,
            'hausnummerId' => $workorder->hausnummerId
        ]);
    }

    /**
     * Update status and note for a specific Wohneinheit
     */
    protected function updateWohneinheitAction()
    {
        $post = json_decode(file_get_contents('php://input'), true);
        if (empty($post['workorderMphId']) || empty($post['wohneinheitId'])) {
            self::sendError("Arbeitsauftrags-ID und Wohneinheit-ID sind erforderlich.");
        }

        $workorderMphId = intval($post['workorderMphId']);
        $wohneinheitId = intval($post['wohneinheitId']);
        $newStatusId = intval($post['status'] ?? 1);
        $spliceCompleted = isset($post['spliceCompleted']) ? intval($post['spliceCompleted']) : 0;
        $tuer = $post['tuer'] ?? null;
        $zusatz = $post['zusatz'] ?? null;

        $db = FronkDB::singleton(ADDRESSDB_DBHOST, ADDRESSDB_DBUSER, ADDRESSDB_DBPASS, ADDRESSDB_DBNAME);
        $escapedWohneinheitId = $db->escape($wohneinheitId);

        // Fetch current state
        $currentSql = "SELECT status_id, tuer, zusatz, splice_hak_completed FROM Wohneinheit WHERE id = $escapedWohneinheitId";
        $result = $db->query($currentSql);
        $current = $result ? $result->fetch_assoc() : null;

        if (!$current) self::sendError("Wohneinheit nicht gefunden.");

        $oldStatusId = intval($current['status_id']);
        $oldTuer = $current['tuer'];
        $oldZusatz = $current['zusatz'];
        $oldSplice = intval($current['splice_hak_completed'] ?? 0);

        // Update Wohneinheit
        $escapedTuer = $tuer !== null ? "'" . $db->escape($tuer) . "'" : "NULL";
        $escapedZusatz = $zusatz !== null ? "'" . $db->escape($zusatz) . "'" : "NULL";
        $escapedStatusId = $db->escape($newStatusId);
        $escapedSplice = $db->escape($spliceCompleted);
        
        $updateSql = "UPDATE Wohneinheit SET 
                      status_id = $escapedStatusId, 
                      tuer = $escapedTuer, 
                      zusatz = $escapedZusatz,
                      splice_hak_completed = $escapedSplice
                      WHERE id = $escapedWohneinheitId";
        
        $db->query($updateSql);

        // Journaling
        $changes = [];
        if ($oldStatusId !== $newStatusId) {
             // Fetch status names for better logging
             $statusNamesSql = "SELECT id, code, name FROM Status WHERE id IN ($oldStatusId, $newStatusId)";
             $statusRes = $db->query($statusNamesSql);
             $statusMap = [];
             if ($statusRes) {
                 while($row = $statusRes->fetch_assoc()) {
                     $statusMap[$row['id']] = $row['code'] . ' - ' . $row['name'];
                 }
             }
             $oldText = $statusMap[$oldStatusId] ?? "ID $oldStatusId";
             $newText = $statusMap[$newStatusId] ?? "ID $newStatusId";
             $changes[] = "Status: $oldText → $newText";
        }
        
        if ($oldSplice !== $spliceCompleted) {
            $changes[] = "Spleiß: " . ($spliceCompleted ? 'Erledigt' : 'Nicht erledigt');
        }
        
        if ($oldTuer !== $tuer) {
            $changes[] = "Tür aktualisiert: '$oldTuer' -> '$tuer'";
        }
        if ($oldZusatz !== $zusatz) {
            $changes[] = "Zusatz aktualisiert: '$oldZusatz' -> '$zusatz'";
        }

        if (!empty($changes)) {
            WorkorderMphJournalModel::create([
                'workorderMphId' => $workorderMphId,
                'text' => "Wohneinheit $wohneinheitId: " . implode(', ', $changes),
                'create' => time(),
                'createBy' => $this->user->id,
            ]);
        }
        
        // Status flag logic for BEP MD (241) and ONT (300). Need to check codes for these IDs.
        // Since we only have IDs, we need to check the code of the newStatusId.
        $newStatusCodeSql = "SELECT code FROM Status WHERE id = $escapedStatusId";
        $resCode = $db->query($newStatusCodeSql);
        $newStatusCode = $resCode ? intval($resCode->fetch_assoc()['code']) : 0;
        
        if (in_array($newStatusCode, [241, 300])) { // 241=BEP MD, 300=ONT
             $this->setWohneinheitStatusflag($wohneinheitId, 200);
        }

        self::returnJson(['success' => true, 'message' => 'Wohneinheit aktualisiert.']);
    }

    /**
     * Set statusflag on Wohneinheit in addressdb
     */
    private function setWohneinheitStatusflag(int $wohneinheitId, int $statusflagId)
    {
        $db = FronkDB::singleton(ADDRESSDB_DBHOST, ADDRESSDB_DBUSER, ADDRESSDB_DBPASS, ADDRESSDB_DBNAME);
        $weId = $db->escape($wohneinheitId);
        $sfId = $db->escape($statusflagId);

        // Check if statusflag already exists
        $checkSql = "SELECT COUNT(*) as count FROM WohneinheitStatusflagValue WHERE wohneinheit_id = $weId AND statusflag_id = $sfId";
        $result = $db->query($checkSql);
        $exists = $result->fetch_assoc()['count'] > 0;

        if (!$exists) {
            $insertSql = "INSERT INTO WohneinheitStatusflagValue (wohneinheit_id, statusflag_id, create, createBy)
                         VALUES ($weId, $sfId, " . time() . ", " . $this->user->id . ")";
            $db->query($insertSql);
        }
    }

    /**
     * Update checkbox documentation fields
     */
    protected function updateCheckboxesAction()
    {
        $post = json_decode(file_get_contents('php://input'), true);
        if (empty($post['workorderMphId'])) self::sendError("Arbeitsauftrags-ID fehlt.");

        $workorder = WorkorderMphModel::get($post['workorderMphId']);
        if (!$workorder) self::sendError("Arbeitsauftrag nicht gefunden.");

        $changes = [];
        $checkboxFields = ['easement', 'btb', 'fttxLocationSupplied', 'conduitToHuepLaid', 'huepMounted', 'dropCableAvailable', 'spliceCompleted'];

        $updateHausnummerStatus = false;

        foreach ($checkboxFields as $field) {
            if (array_key_exists($field, $post)) {
                $oldValue = $workorder->$field;
                $newValue = $post[$field] ? 1 : 0;
                if ($oldValue !== $newValue) {
                    $workorder->$field = $newValue;
                    $changes[] = "$field: " . ($newValue ? 'ja' : 'nein');

                    // Check for FTTx Location mit Leerrohr versorgt
                    if ($field === 'fttxLocationSupplied' && $newValue === 1) {
                        $updateHausnummerStatus = true;
                    }
                }
            }
        }

        if (!empty($changes)) {
            WorkorderMphModel::update((array)$workorder);

            if ($updateHausnummerStatus) {
                $db = FronkDB::singleton(ADDRESSDB_DBHOST, ADDRESSDB_DBUSER, ADDRESSDB_DBPASS, ADDRESSDB_DBNAME);
                // Find status ID for code 200
                $statusSql = "SELECT id FROM Status WHERE code = 200 AND type = 'hausnummer' LIMIT 1";
                $statusResult = $db->query($statusSql);
                if ($statusResult && $row = $statusResult->fetch_assoc()) {
                    $statusId = $row['id'];
                    $hnId = $db->escape($workorder->hausnummerId);
                    $updateHnSql = "UPDATE Hausnummer SET status_id = $statusId WHERE id = $hnId";
                    $db->query($updateHnSql);
                }
            }

            WorkorderMphJournalModel::create([
                'workorderMphId' => $workorder->id,
                'text' => "Dokumentation aktualisiert:\n" . implode("\n", $changes),
                'create' => time(),
                'createBy' => $this->user->id,
            ]);
        }

        self::returnJson(['success' => true, 'message' => 'Dokumentation aktualisiert.']);
    }
    //endregion
}