<?php

namespace ppa\Controller;

use ppa\Model\NotesModel;
use ppa\Library\View;

class NotesController
{
    private $notesModel;
    protected $view;

    public function __construct($view)
    {
        $this->notesModel = new NotesModel();
        $this->view = $view;
    }

    public function showNotes() 
    {
        # Redirect zum Login wenn kein User eingeloggt ist
        if(!Isset($_SESSION['role'])) 
        {
            header("Location: ?controller=User&do=showUserLoginForm");
        }
    
        $sortBy = $_GET['sort_by'] ?? 'updated_at';
        $sortOrder = strtoupper($_GET['sort_order'] ?? 'DESC');
        $isAdmin = $_SESSION['role'] === 'admin';
        $userid = $_SESSION['user_id'];

        $this->view->setVars([
            "notes" => $this->notesModel->selectNotesForUser($userid, $isAdmin, $sortBy, $sortOrder)
        ]);
    }

    public function showNoteDetails() 
    {
        $noteId = $_GET['id'];
        $note = $this->notesModel->getNoteById($noteId);
        $this->view->setVars([
            "note" => $note
        ]);
    }

    public function createNote() 
    {
        if ($_SERVER['REQUEST_METHOD'] === 'POST') {
            // Process form submission
            $note = $this->notesModel->createNote(
                $_POST['title'], 
                $_POST['content'], 
                $_SESSION['user_id'],
                $_POST['priority']
            );
            
            if ($note) {
                // Redirect to show notes page after successful creation
                header('Location: ?controller=Notes&page=showNotes&do=showNotes');
                exit();
            } else {
                // If creation failed, show error message and stay on the form
                $this->view->setVars([
                    'error' => 'Failed to create note. Please try again.'
                ]);
            }
        }
    }

    public function editNote() 
    {
        if ($_SERVER['REQUEST_METHOD'] === 'POST') {
            // Process form submission
            $noteId = $_GET['id'];
            $note = $this->notesModel->editNote(
                $noteId, 
                $_POST['title'], 
                $_POST['content'], 
                $_SESSION['user_id'],
                $_POST['priority']
            );

            if ($note) {
                // Redirect to show notes page after successful update
                header('Location: ?controller=Notes&page=showNotes&do=showNotes');
                exit();
            } else {
                // If update failed, show error message and stay on the form
                $this->view->setVars([
                    'error' => 'Failed to update note. Please try again.'
                ]);
            }
        }
    }

    public function deleteNote() 
    {
        if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['note_id'])) {
            $noteId = $_POST['note_id'];
            $this->notesModel->deleteNote($noteId, $_SESSION['user_id']);
        }
        
        header("Location: ?controller=Notes&page=showNotes&do=showNotes");
        exit();
    }

    public function fileManager() 
    {
        # Redirect zum Login wenn kein User eingeloggt ist
        if(!Isset($_SESSION['role'])) 
        {
            header("Location: ?controller=User&do=showUserLoginForm");
        }
        # Redirect zum Welcome wenn kein User kein Admin ist
        if(!Isset($_SESSION['role']) || $_SESSION['role'] !== 'admin') 
        {
            header("Location: ?controller=Welcome&do=showWelcome");
        }
    
        $sortBy = $_GET['sort_by'] ?? 'uploaded_at';
        $sortOrder = strtoupper($_GET['sort_order'] ?? 'DESC');
        $isAdmin = $_SESSION['role'] === 'admin';
        $userid = $_SESSION['user_id'];

        $files = $this->notesModel->selectFiles($userid, true);
        $this->view->setVars([
            "files" => $files
        ]);
    }
    
    public function deleteFile() 
    {
        if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['file_id'])) {
            $fileId = $_POST['file_id'];
            $this->notesModel->deleteFile($fileId, $_SESSION['user_id']);
        }
        
        header("Location: ?controller=Notes&do=fileManager");
        exit();
    }
}