<?php
defined($security_key) or exit;

//------------------------------------------
// Marketing Folders
//------------------------------------------
//Connect to DB
$pdo = dbConnect($dbname);

//CONTENT FROM API (POST)
$post_content = json_decode($input,true);

//SoldTo is empty
if (empty($partner->soldto) || $partner->soldto == ''){$soldto_search = '%';} else {$soldto_search = '-%';}

//default whereclause
list($whereclause,$condition) = getWhereclauselvl2("",$permission,$partner,'');

//BUILD UP PARTNERHIERARCHY FROM USER
$partner_hierarchy = json_encode(array("salesid"=>$partner->salesid,"soldto"=>$partner->soldto), JSON_UNESCAPED_UNICODE);

$id = $post_content['id'] ?? ''; //check for rowID
$command = ($id == '')? 'insert' : 'update';  //IF rowID = empty then INSERT
if (isset($post_content['delete'])){$command = 'delete';} //change command to delete
$date = date('Y-m-d H:i:s');

//CREATE EMPTY STRINGS
$clause = '';
$clause_insert ='';
$input_insert = '';

if ($command == 'update'){
    $post_content['updatedby'] = $username;
    $post_content['updated'] = $date;
}
if ($command == 'insert'){
    $post_content['createdby'] = $username;
    $post_content['accounthierarchy'] = $partner_hierarchy;
}

//CREATE NEW ARRAY AND MAP TO CLAUSE
if(isset($post_content) && $post_content!=''){   
    foreach ($post_content as $key => $var){
        if ($key == 'submit' || $key == 'id' || $key == 'delete'){
            //do nothing
        }
        else {
            // Handle empty parent_id as NULL for foreign key constraint
            if ($key == 'parent_id' && $var === '') {
                $var = null;
            }
            $criterias[$key] = $var;
            $clause .= ' , '.$key.' = ?';
            $clause_insert .= ' , '.$key.'';
            $input_insert .= ', ?'; // ? for each insert item
            $execute_input[]= $var; // Build array for input
        }
    }
}

//CLEAN UP INPUT
$clause = substr($clause, 2); //Clean clause - remove first comma
$clause_insert = substr($clause_insert, 2); //Clean clause - remove first comma
$input_insert = substr($input_insert, 1); //Clean clause - remove first comma

//QUERY AND VERIFY ALLOWED
if ($command == 'update' && isAllowed('marketing',$profile,$permission,'U') === 1){
    $sql = 'UPDATE marketing_folders SET '.$clause.' WHERE id = ? '.$whereclause.'';
    $execute_input[] = $id;
    $stmt = $pdo->prepare($sql);
    $stmt->execute($execute_input);
    echo json_encode(['success' => true, 'message' => 'Folder updated successfully']);
} 
elseif ($command == 'insert' && isAllowed('marketing',$profile,$permission,'C') === 1){
    $sql = 'INSERT INTO marketing_folders ('.$clause_insert.') VALUES ('.$input_insert.')';
    $stmt = $pdo->prepare($sql);
    $stmt->execute($execute_input);
    $folder_id = $pdo->lastInsertId();
    echo json_encode(['success' => true, 'rowID' => $folder_id, 'message' => 'Folder created successfully']);
}
elseif ($command == 'delete' && isAllowed('marketing',$profile,$permission,'D') === 1){
    // Check if folder has subfolders
    $subfolder_sql = 'SELECT COUNT(*) as count FROM marketing_folders WHERE parent_id = ? AND accounthierarchy LIKE ?';
    $stmt = $pdo->prepare($subfolder_sql);
    $stmt->execute([$id, '%' . $partner->soldto . '%']);
    $subfolder_count = $stmt->fetch()['count'];
    
    // Check if folder has files
    $files_sql = 'SELECT COUNT(*) as count FROM marketing_files WHERE folder_id = ? AND accounthierarchy LIKE ?';
    $stmt = $pdo->prepare($files_sql);
    $stmt->execute([$id, '%' . $partner->soldto . '%']);
    $files_count = $stmt->fetch()['count'];
    
    if ($subfolder_count > 0 || $files_count > 0) {
        echo json_encode(['error' => 'Cannot delete folder that contains subfolders or files']);
    } else {
        $stmt = $pdo->prepare('DELETE FROM marketing_folders WHERE id = ? '.$whereclause.'');
        $stmt->execute([ $id ]); 
        echo json_encode(['success' => true, 'message' => 'Folder deleted successfully']);
    }
} else {
    echo json_encode(['error' => 'Insufficient permissions or invalid operation']);
}

?>