<?php
defined($security_key) or exit;

//------------------------------------------
// User Roles
//------------------------------------------
//Connect to DB
$pdo = dbConnect($dbname);

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

//SET PARAMETERS FOR QUERY
$id = $post_content['rowID'] ?? '';
$command = ($id == '')? 'insert' : 'update';
if (isset($post_content['delete'])){$command = 'delete';}
$date = date('Y-m-d H:i:s');

//CREATE EMPTY STRINGS
$clause = '';
$clause_insert ='';
$input_insert = '';
$execute_input = [];
$criterias = [];

//ADD STANDARD PARAMETERS TO ARRAY BASED ON INSERT OR UPDATE
if ($command == 'update'){
    $post_content['updatedby'] = $username;
    $post_content['updated'] = $date;
}
elseif ($command == 'insert'){
    $post_content['created'] = $date;
    $post_content['createdby'] = $username;
}

//CREAT NEW ARRAY AND MAP TO CLAUSE
if(isset($post_content) && $post_content!=''){
    foreach ($post_content as $key => $var){
        if ($key == 'submit' || $key == 'rowID' || $key == 'permissions' || str_contains($key, 'old_')){
            //do nothing
        }
        else {
            $criterias[$key] = $var;
            $clause .= ' , '.$key.' = ?';
            $clause_insert .= ' , '.$key.'';
            $input_insert .= ', ?';
            $execute_input[]= $var;
        }
    }
}

//CLEAN UP INPUT
$clause = substr($clause, 2);
$clause_insert = substr($clause_insert, 2);
$input_insert = substr($input_insert, 1);

//QUERY AND VERIFY ALLOWED
if ($command == 'update' && isAllowed('user_role_manage',$profile,$permission,'U') === 1){
    $sql = 'UPDATE user_roles SET '.$clause.' WHERE rowID = ?';
    $execute_input[] = $id;
    $stmt = $pdo->prepare($sql);
    $stmt->execute($execute_input);

    //Handle permissions update
    if (isset($post_content['permissions'])){
        //First delete all existing permissions for this role
        $stmt = $pdo->prepare('DELETE FROM role_access_permissions WHERE role_id = ?');
        $stmt->execute([$id]);

        //Insert new permissions
        foreach ($post_content['permissions'] as $access_id => $perms){
            $can_create = isset($perms['can_create']) ? 1 : 0;
            $can_read = isset($perms['can_read']) ? 1 : 0;
            $can_update = isset($perms['can_update']) ? 1 : 0;
            $can_delete = isset($perms['can_delete']) ? 1 : 0;

            //Only insert if at least one permission is set
            if ($can_create || $can_read || $can_update || $can_delete){
                $stmt = $pdo->prepare('INSERT INTO role_access_permissions (role_id, access_id, can_create, can_read, can_update, can_delete, created, createdby) VALUES (?, ?, ?, ?, ?, ?, ?, ?)');
                $stmt->execute([$id, $access_id, $can_create, $can_read, $can_update, $can_delete, $date, $userkey]);
            }
        }
    }
}
elseif ($command == 'insert' && isAllowed('user_role_manage',$profile,$permission,'C') === 1){
    $sql = 'INSERT INTO user_roles ('.$clause_insert.') VALUES ('.$input_insert.')';
    $stmt = $pdo->prepare($sql);
    $stmt->execute($execute_input);

    //Get the new role ID
    $new_role_id = $pdo->lastInsertId();

    //Handle permissions for new role
    if (isset($post_content['permissions'])){
        foreach ($post_content['permissions'] as $access_id => $perms){
            $can_create = isset($perms['can_create']) ? 1 : 0;
            $can_read = isset($perms['can_read']) ? 1 : 0;
            $can_update = isset($perms['can_update']) ? 1 : 0;
            $can_delete = isset($perms['can_delete']) ? 1 : 0;

            //Only insert if at least one permission is set
            if ($can_create || $can_read || $can_update || $can_delete){
                $stmt = $pdo->prepare('INSERT INTO role_access_permissions (role_id, access_id, can_create, can_read, can_update, can_delete, created, createdby) VALUES (?, ?, ?, ?, ?, ?, ?, ?)');
                $stmt->execute([$new_role_id, $access_id, $can_create, $can_read, $can_update, $can_delete, $date, $userkey]);
            }
        }
    }
}
elseif ($command == 'delete' && isAllowed('user_role_manage',$profile,$permission,'D') === 1){
    //Delete role permissions first (foreign key constraint)
    $stmt = $pdo->prepare('DELETE FROM role_access_permissions WHERE role_id = ?');
    $stmt->execute([$id]);

    //Delete user role assignments
    $stmt = $pdo->prepare('DELETE FROM user_role_assignments WHERE role_id = ?');
    $stmt->execute([$id]);

    //Delete role
    $stmt = $pdo->prepare('DELETE FROM user_roles WHERE rowID = ?');
    $stmt->execute([$id]);
}

?>