From a141f60df0ab3835f19fd3432356040983b147aa Mon Sep 17 00:00:00 2001
From: Flatlogic Bot <support@flatlogic.com>
Date: Sat, 10 Jan 2026 10:17:15 +0000
Subject: [PATCH] =?UTF-8?q?Mechanizm=20obs=C5=82ugi=20proces=C3=B3w?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 WorkflowEngine.php        | 338 ++++++++++++++++----------------------
 _get_instance_details.php |   6 +-
 cookie.txt                |   5 +
 process_definitions.php   |  93 +++++++++--
 test_php.php              |   1 +
 5 files changed, 231 insertions(+), 212 deletions(-)
 create mode 100644 cookie.txt
 create mode 100644 test_php.php

diff --git a/WorkflowEngine.php b/WorkflowEngine.php
index d777948..f4071b8 100644
--- a/WorkflowEngine.php
+++ b/WorkflowEngine.php
@@ -1,12 +1,6 @@
 <?php
 require_once __DIR__ . '/db/config.php';
 
-/**
- * Class WorkflowEngine
- * 
- * Centralny serwis do zarządzania logiką procesów.
- * Interfejs użytkownika nie powinien bezpośrednio zmieniać statusów ani instancji; wszystkie operacje muszą przechodzić przez ten silnik.
- */
 class WorkflowEngine {
 
     private $pdo;
@@ -15,11 +9,6 @@ class WorkflowEngine {
         $this->pdo = db();
     }
 
-    /**
-     * Pobiera wszystkie dane niezbędne dla głównej macierzy pulpitu procesów.
-     *
-     * @return array Tablica zawierająca 'people', 'definitions' i zmapowaną tablicę 'instances'.
-     */
     public function getDashboardMatrix(): array {
         // Get all people (potential assignees)
         $stmt_people = $this->pdo->prepare("SELECT id, firstName, lastName, companyName, role, email, phone FROM people ORDER BY lastName, firstName");
@@ -48,216 +37,179 @@ class WorkflowEngine {
         ];
     }
 
-    /**
-     * Rozpoczyna nową instancję procesu dla danej osoby.
-     *
-     * @param string $processCode Unikalny kod definicji procesu.
-     * @param int $personId ID osoby.
-     * @param int $userId ID użytkownika inicjującego akcję.
-     * @return int|null ID nowo utworzonej instancji lub null w przypadku niepowodzenia.
-     */
     public function startProcess(string $processCode, int $personId, int $userId): ?int {
-        // 1. Znajdź aktywną definicję procesu po kodzie.
-        // 2. Pobierz start_node_id z definicji.
-        // 3. Utwórz nową instancję procesu ze statusem 'in_progress' i current_node_id.
-        // 4. Utwórz zdarzenie systemowe dla rozpoczęcia procesu.
-        // TODO: Implementacja logiki.
-        return null;
+        error_log("startProcess: processCode=$processCode, personId=$personId, userId=$userId");
+        $this->pdo->beginTransaction();
+        try {
+            // 1. Find active process definition by code.
+            $stmt_def = $this->pdo->prepare("SELECT * FROM process_definitions WHERE code = ? AND active = 1");
+            $stmt_def->execute([$processCode]);
+            $definition = $stmt_def->fetch(PDO::FETCH_ASSOC);
+            error_log("startProcess: definition=" . print_r($definition, true));
+
+            if (!$definition) {
+                throw new Exception("Active process definition with code '$processCode' not found.");
+            }
+
+            $definition_json = json_decode($definition['definition_json'], true);
+            if (!$definition_json || !isset($definition_json['start_node_id'])) {
+                throw new Exception("Process definition is missing start_node_id.");
+            }
+            $startNodeId = $definition_json['start_node_id'];
+
+            // 2. Create a new process instance.
+            $stmt_insert = $this->pdo->prepare(
+                "INSERT INTO process_instances (personId, processDefinitionId, current_node_id, current_status, lastActivityAt) VALUES (?, ?, ?, 'in_progress', NOW())"
+            );
+            $stmt_insert->execute([$personId, $definition['id'], $startNodeId]);
+            error_log("startProcess: affected rows=" . $stmt_insert->rowCount());
+            $instanceId = $this->pdo->lastInsertId();
+            error_log("startProcess: instanceId=$instanceId");
+
+            // 3. Create a system event for process start.
+            $this->addEvent($instanceId, 'system', 'Process started.', $startNodeId, [], $userId);
+
+            $this->pdo->commit();
+            return (int)$instanceId;
+        } catch (Exception $e) {
+            $this->pdo->rollBack();
+            error_log("Error in startProcess: " . $e->getMessage());
+            return null;
+        }
+    }
+
+    public function getProcessState(int $instanceId): ?array {
+        $stmt = $this->pdo->prepare("SELECT * FROM process_instances WHERE id = ?");
+        $stmt->execute([$instanceId]);
+        $instance = $stmt->fetch(PDO::FETCH_ASSOC);
+
+        if (!$instance) {
+            return null;
+        }
+
+        $stmt_def = $this->pdo->prepare("SELECT definition_json FROM process_definitions WHERE id = ?");
+        $stmt_def->execute([$instance['processDefinitionId']]);
+        $definition_json = $stmt_def->fetchColumn();
+        $definition = json_decode($definition_json, true);
+
+        $currentNodeId = $instance['current_node_id'];
+        $nodeInfo = $definition['nodes'][$currentNodeId] ?? null;
+
+        return [
+            'instance' => $instance,
+            'definition' => $definition,
+            'currentNode' => $nodeInfo,
+        ];
+    }
+
+    public function applyTransition(int $instanceId, string $transitionId, array $inputPayload, int $userId): bool {
+        $this->pdo->beginTransaction();
+        try {
+            $state = $this->getProcessState($instanceId);
+            if (!$state) {
+                throw new Exception("Process instance not found.");
+            }
+
+            $instance = $state['instance'];
+            $definition = $state['definition'];
+            $currentNodeId = $instance['current_node_id'];
+
+            // Find the transition from the definition
+            $transition = null;
+            foreach ($definition['transitions'] as $t) {
+                if ($t['from'] === $currentNodeId && $t['id'] === $transitionId) {
+                    $transition = $t;
+                    break;
+                }
+            }
+
+            if (!$transition) {
+                throw new Exception("Transition not found or not allowed from the current node.");
+            }
+
+            // TODO: Add rule validation here
+
+            $newNodeId = $transition['to'];
+            $newNodeInfo = $definition['nodes'][$newNodeId] ?? null;
+
+            // Update instance
+            $stmt_update = $this->pdo->prepare(
+                "UPDATE process_instances SET current_node_id = ?, current_status = ?, current_reason = ?, suggested_next_step = ?, lastActivityAt = NOW() WHERE id = ?"
+            );
+            $stmt_update->execute([
+                $newNodeId,
+                $newNodeInfo['ui_hints']['status'] ?? 'in_progress',
+                $newNodeInfo['ui_hints']['reason'] ?? '',
+                $newNodeInfo['ui_hints']['next_step'] ?? '',
+                $instanceId
+            ]);
+
+            // Add event
+            $message = $inputPayload['message'] ?? $transition['name'];
+            $this->addEvent($instanceId, 'transition_applied', $message, $newNodeId, $inputPayload, $userId);
+
+            $this->pdo->commit();
+            return true;
+        } catch (Exception $e) {
+            $this->pdo->rollBack();
+            error_log("Error in applyTransition: " . $e->getMessage());
+            return false;
+        }
+    }
+
+    private function addEvent(int $instanceId, string $eventType, string $message, ?string $nodeId, array $payload, int $userId): void {
+        $stmt = $this->pdo->prepare(
+            "INSERT INTO process_events (processInstanceId, eventType, message, node_id, payload_json, createdById) VALUES (?, ?, ?, ?, ?, ?)"
+        );
+        $stmt->execute([$instanceId, $eventType, $message, $nodeId, json_encode($payload), $userId]);
     }
 
-    /**
-     * Pobiera pojedynczą instancję procesu, tworząc ją, jeśli nie istnieje.
-     *
-     * @param int $personId
-     * @param int $processDefinitionId
-     * @param int $userId Użytkownik inicjujący utworzenie, jeśli to nastąpi.
-     * @return array|null Tablica asocjacyjna z danymi instancji.
-     */
     public function getOrCreateInstanceByDefId(int $personId, int $processDefinitionId, int $userId): ?array {
         $stmt = $this->pdo->prepare("SELECT * FROM process_instances WHERE personId = ? AND processDefinitionId = ?");
         $stmt->execute([$personId, $processDefinitionId]);
         $instance = $stmt->fetch(PDO::FETCH_ASSOC);
 
         if (!$instance) {
-            // Fetch the process definition to get the initial status
-            $stmt_def = $this->pdo->prepare("SELECT definition_json FROM process_definitions WHERE id = ?");
+            $stmt_def = $this->pdo->prepare("SELECT code FROM process_definitions WHERE id = ?");
             $stmt_def->execute([$processDefinitionId]);
-            $definition_raw = $stmt_def->fetchColumn();
-            $definition = $definition_raw ? json_decode($definition_raw, true) : null;
-            $initial_status = $definition['initial_status'] ?? 'none';
+            $processCode = $stmt_def->fetchColumn();
 
-            $stmt_insert = $this->pdo->prepare("INSERT INTO process_instances (personId, processDefinitionId, current_status) VALUES (?, ?, ?)");
-            $stmt_insert->execute([$personId, $processDefinitionId, $initial_status]);
-            $instanceId = $this->pdo->lastInsertId();
-
-            // Utwórz zdarzenie systemowe dla utworzenia instancji
-            $this->addEvent($instanceId, 'system', 'Instancja utworzona.', null, [], $userId);
-
-            // Pobierz ponownie nowo utworzoną instancję
-            $stmt->execute([$personId, $processDefinitionId]);
-            $instance = $stmt->fetch(PDO::FETCH_ASSOC);
+            if($processCode) {
+                $instanceId = $this->startProcess($processCode, $personId, $userId);
+                if($instanceId) {
+                    $stmt->execute([$personId, $processDefinitionId]);
+                    $instance = $stmt->fetch(PDO::FETCH_ASSOC);
+                }
+            }
         }
 
-        return $instance;
+        return $instance !== false ? $instance : null;
     }
 
-    /**
-     * Dodaje nowe zdarzenie do historii instancji.
-     * To jest wewnętrzna metoda pomocnicza.
-     */
-    private function addEvent(int $instanceId, string $eventType, string $message, ?string $nodeId, array $payload, int $userId): void {
-        $stmt = $this->pdo->prepare(
-            "INSERT INTO process_events (processInstanceId, event_type, message, node_id, payload_json, createdById) VALUES (?, ?, ?, ?, ?, ?)"
-        );
-        $stmt->execute([$instanceId, $eventType, $message, $nodeId, json_encode($payload), $userId]);
-    }
-
-    /**
-     * Pobiera historię zdarzeń dla danej instancji.
-     *
-     * @param int $instanceId
-     * @return array
-     */
     public function getEvents(int $instanceId): array {
         $stmt_events = $this->pdo->prepare("SELECT pe.*, p.email as user_email, p.firstName, p.lastName FROM process_events pe JOIN people p ON pe.createdById = p.id WHERE pe.processInstanceId = ? ORDER BY pe.createdAt DESC");
         $stmt_events->execute([$instanceId]);
         return $stmt_events->fetchAll(PDO::FETCH_ASSOC);
     }
 
-    /**
-     * Pobiera listę dostępnych przejść z bieżącego węzła instancji.
-     *
-     * @param int $instanceId
-     * @return array Lista dostępnych przejść.
-     */
     public function getAvailableTransitions(int $instanceId): array {
-        $stmt = $this->pdo->prepare(
-            'SELECT pi.current_status, pd.definition_json '
-            . 'FROM process_instances pi '
-            . 'JOIN process_definitions pd ON pi.processDefinitionId = pd.id '
-            . 'WHERE pi.id = ?'
-        );
-        $stmt->execute([$instanceId]);
-        $result = $stmt->fetch(PDO::FETCH_ASSOC);
-
-        if (!$result || empty($result['definition_json'])) {
+        $state = $this->getProcessState($instanceId);
+        if (!$state) {
             return [];
         }
 
-        $definition = json_decode($result['definition_json'], true);
-        if (!$definition || !isset($definition['transitions'])) {
-            return [];
-        }
-
-        $current_status = $result['current_status'];
-        $allowed_transitions = $definition['transitions'][$current_status] ?? [];
+        $currentNodeId = $state['instance']['current_node_id'];
+        $definition = $state['definition'];
 
         $transitions = [];
-        foreach ($allowed_transitions as $target_status) {
-            $transitions[] = [
-                'id' => 'transition_' . str_replace(' ', '_', strtolower($target_status)), // e.g., transition_in_progress
-                'name' => 'Oznacz jako ' . $target_status, // e.g., Oznacz jako In Progress
-                'target_status' => $target_status
-            ];
+        if (isset($definition['transitions'])) {
+            foreach ($definition['transitions'] as $t) {
+                if ($t['from'] === $currentNodeId) {
+                    $transitions[] = $t;
+                }
+            }
         }
 
         return $transitions;
     }
-
-    /**
-     * Stosuje przejście do instancji procesu. To jest główna metoda do postępu w przepływie pracy.
-     *
-     * @param int $instanceId ID instancji procesu.
-     * @param string $transitionId ID przejścia do zastosowania (z definition_json).
-     * @param array $inputPayload Dane zebrane od użytkownika dla tego kroku.
-     * @param int $userId ID użytkownika wykonującego akcję.
-     * @return bool True w przypadku sukcesu, false w przypadku porażki.
-     */
-    public function applyTransition(int $instanceId, string $transitionId, array $inputPayload, int $userId): bool {
-        $this->pdo->beginTransaction();
-
-        try {
-            // 1. Pobierz instancję i dostępne przejścia
-            $stmt = $this->pdo->prepare("SELECT * FROM process_instances WHERE id = ?");
-            $stmt->execute([$instanceId]);
-            $instance = $stmt->fetch(PDO::FETCH_ASSOC);
-
-            if (!$instance) {
-                // Instancja nie znaleziona
-                $this->pdo->rollBack();
-                return false;
-            }
-
-            $availableTransitions = $this->getAvailableTransitions($instanceId);
-            
-            // 2. Sprawdź, czy przejście jest dozwolone
-            $selectedTransition = null;
-            if ($transitionId === 'note') { // Specjalny przypadek dodawania notatki
-                $selectedTransition = ['id' => 'note', 'name' => 'Dodano notatkę', 'target_status' => $instance['current_status']];
-            } else {
-                foreach ($availableTransitions as $trans) {
-                    if ($trans['id'] === $transitionId) {
-                        $selectedTransition = $trans;
-                        break;
-                    }
-                }
-            }
-
-            if (!$selectedTransition) {
-                // Nieprawidłowe lub niedozwolone przejście
-                $this->pdo->rollBack();
-                return false;
-            }
-
-            // 3. Utwórz zdarzenie
-            $eventType = ($transitionId === 'note') ? 'note' : 'transition_applied';
-            $message = $inputPayload['message'] ?? $selectedTransition['name'];
-            $this->addEvent($instanceId, $eventType, $message, null, $inputPayload, $userId);
-
-            // 4. Zaktualizuj instancję
-            $stmt_update = $this->pdo->prepare(
-                "UPDATE process_instances SET current_status = ?, lastActivityAt = CURRENT_TIMESTAMP WHERE id = ?"
-            );
-            $stmt_update->execute([$selectedTransition['target_status'], $instanceId]);
-
-            $this->pdo->commit();
-            return true;
-
-        } catch (Exception $e) {
-            $this->pdo->rollBack();
-            error_log("Błąd w applyTransition: " . $e->getMessage());
-            return false;
-        }
-    }
-
-    /**
-     * Masowa operacja stosowania tego samego przejścia do wielu osób dla danego procesu.
-     *
-     * @param string $processCode
-     * @param array $personIds
-     * @param string $transitionId
-     * @param array $inputPayload
-     * @param int $userId
-     * @return array Podsumowanie wyników (np. ['success' => count, 'failed' => count]).
-     */
-    public function bulkApplyTransition(string $processCode, array $personIds, string $transitionId, array $inputPayload, int $userId): array {
-        // 1. Upewnij się, że instancje istnieją dla wszystkich osób (użyj ensureInstances).
-        // 2. Przejdź przez pętlę personIds i wywołaj applyTransition dla każdej z nich.
-        // TODO: Implementacja logiki.
-        return ['success' => 0, 'failed' => 0];
-    }
-    
-    /**
-     * Zapewnia, że instancje procesów istnieją dla danego zestawu osób i kodów procesów.
-     * Jeśli instancja brakuje, zostanie utworzona.
-     *
-     * @param array $personIds
-     * @param array $processCodes
-     * @param int $userId
-     * @return array Podsumowanie utworzonych instancji.
-     */
-    public function ensureInstances(array $personIds, array $processCodes, int $userId): array {
-        // TODO: Implementacja logiki do tworzenia brakujących instancji.
-        return ['created' => 0];
-    }
-}
\ No newline at end of file
+}
diff --git a/_get_instance_details.php b/_get_instance_details.php
index d2938e0..b19d060 100644
--- a/_get_instance_details.php
+++ b/_get_instance_details.php
@@ -1,4 +1,5 @@
 <?php
+
 require_once 'WorkflowEngine.php';
 session_start();
 
@@ -10,6 +11,8 @@ if (!isset($_SESSION['user_id'])) {
 $personId = $_GET['personId'] ?? null;
 $processDefinitionId = $_GET['processId'] ?? null; // Pulpit wysyła processId, który jest ID definicji
 
+
+
 if (!$personId || !$processDefinitionId) {
     http_response_code(400);
     die('Brakujące parametry');
@@ -20,9 +23,10 @@ $engine = new WorkflowEngine();
 
 // 1. Pobierz lub utwórz instancję
 $instance = $engine->getOrCreateInstanceByDefId($personId, $processDefinitionId, $userId);
+
 if (!$instance) {
     http_response_code(500);
-    die('Nie można pobrać lub utworzyć instancji procesu.');
+    die("Nie można pobrać lub utworzyć instancji procesu. personId: $personId, processDefinitionId: $processDefinitionId, userId: $userId");
 }
 $instanceId = $instance['id'];
 
diff --git a/cookie.txt b/cookie.txt
new file mode 100644
index 0000000..82d4cef
--- /dev/null
+++ b/cookie.txt
@@ -0,0 +1,5 @@
+# Netscape HTTP Cookie File
+# https://curl.se/docs/http-cookies.html
+# This file was generated by libcurl! Edit at your own risk.
+
+localhost	FALSE	/	FALSE	0	PHPSESSID	u19ekrhqoemk4c5avca3umanfb
diff --git a/process_definitions.php b/process_definitions.php
index ef1b232..69d7f07 100644
--- a/process_definitions.php
+++ b/process_definitions.php
@@ -39,6 +39,7 @@ $processes = $stmt->fetchAll(PDO::FETCH_ASSOC);
                                 <td><?= htmlspecialchars($process['name']) ?></td>
                                 <td class="text-center">
                                     <button class="btn btn-sm btn-secondary edit-process-btn" 
+                                            data-bs-toggle="modal" data-bs-target="#createProcessModal"
                                             data-process-id="<?= $process['id'] ?>" 
                                             data-process-name="<?= htmlspecialchars($process['name']) ?>"
                                             data-process-definition='<?= htmlspecialchars($process['definition_json'] ?? '') ?>'>
@@ -127,22 +128,72 @@ document.addEventListener('DOMContentLoaded', function () {
     const processNameInput = createProcessModal.querySelector('#processName');
     const definitionJsonTextarea = createProcessModal.querySelector('#definitionJson');
 
-    // Handle create button click
-    const createButton = document.querySelector('button[data-bs-target="#createProcessModal"]');
-    createButton.addEventListener('click', function() {
-        modalTitle.textContent = 'Create Process';
-        form.action = '_save_process_definition.php';
-        processIdInput.value = '';
-        processNameInput.value = '';
-        definitionJsonTextarea.value = '';
-    });
+    function renderProcessDefinition(definition) {
+        const statusesList = document.getElementById('statuses-list');
+        const transitionsList = document.getElementById('transitions-list');
+        const initialStatusSelect = document.getElementById('initialStatus');
+        const fromStatusSelect = document.getElementById('fromStatusSelect');
+        const toStatusSelect = document.getElementById('toStatusSelect');
 
-    // Handle edit button click
-    document.querySelectorAll('.edit-process-btn').forEach(button => {
-        button.addEventListener('click', function() {
-            const processId = this.dataset.processId;
-            const processName = this.dataset.processName;
-            const processDefinition = this.dataset.processDefinition;
+        statusesList.innerHTML = '';
+        transitionsList.innerHTML = '';
+        initialStatusSelect.innerHTML = '';
+        fromStatusSelect.innerHTML = '';
+        toStatusSelect.innerHTML = '';
+
+        if (!definition) {
+            return;
+        }
+
+        try {
+            const def = JSON.parse(definition);
+
+            // Populate statuses
+            if (def.nodes) {
+                for (const nodeId in def.nodes) {
+                    const node = def.nodes[nodeId];
+                    const statusItem = document.createElement('div');
+                    statusItem.textContent = node.name;
+                    statusesList.appendChild(statusItem);
+
+                    const option = document.createElement('option');
+                    option.value = node.id;
+                    option.textContent = node.name;
+                    initialStatusSelect.appendChild(option.cloneNode(true));
+                    fromStatusSelect.appendChild(option.cloneNode(true));
+                    toStatusSelect.appendChild(option.cloneNode(true));
+                }
+            }
+
+            // Set initial status
+            if (def.start_node_id) {
+                initialStatusSelect.value = def.start_node_id;
+            }
+
+            // Populate transitions
+            if (def.transitions) {
+                def.transitions.forEach(transition => {
+                    const transitionItem = document.createElement('div');
+                    const fromNode = def.nodes[transition.from] ? def.nodes[transition.from].name : 'N/A';
+                    const toNode = def.nodes[transition.to] ? def.nodes[transition.to].name : 'N/A';
+                    transitionItem.textContent = `${transition.name}: ${fromNode} => ${toNode}`;
+                    transitionsList.appendChild(transitionItem);
+                });
+            }
+        } catch (e) {
+            console.error('Error parsing process definition:', e);
+            // Optionally, display an error message to the user
+        }
+    }
+
+    createProcessModal.addEventListener('show.bs.modal', function (event) {
+        const button = event.relatedTarget;
+        const isEdit = button.classList.contains('edit-process-btn');
+
+        if (isEdit) {
+            const processId = button.dataset.processId;
+            const processName = button.dataset.processName;
+            const processDefinition = button.dataset.processDefinition;
 
             modalTitle.textContent = 'Edit Process';
             form.action = '_save_process_definition.php';
@@ -150,9 +201,15 @@ document.addEventListener('DOMContentLoaded', function () {
             processNameInput.value = processName;
             definitionJsonTextarea.value = processDefinition;
 
-            const modal = new bootstrap.Modal(createProcessModal);
-            modal.show();
-        });
+            renderProcessDefinition(processDefinition);
+        } else {
+            modalTitle.textContent = 'Create Process';
+            form.action = '_save_process_definition.php';
+            processIdInput.value = '';
+            processNameInput.value = '';
+            definitionJsonTextarea.value = '';
+            renderProcessDefinition(''); // Clear the form
+        }
     });
 });
 </script>
diff --git a/test_php.php b/test_php.php
new file mode 100644
index 0000000..3072366
--- /dev/null
+++ b/test_php.php
@@ -0,0 +1 @@
+<?php echo "Hello from PHP"; ?>
\ No newline at end of file