Innovenergy_trunk/csharp/App/Backend/Database/Create.cs

using InnovEnergy.App.Backend.DataTypes;
using InnovEnergy.App.Backend.Relations;


namespace InnovEnergy.App.Backend.Database;


public static partial class Db
{
    
    private static Boolean Insert(Object obj)
    {
        var success = Connection.Insert(obj) > 0;
        if (success)  Backup();
        return success;
    }
    
    public static Boolean Create(Installation installation)
    {
        // The bucket Id it calculated as follows: It is 1 + the maximum bucket id of all the existing installations of the same product
        // SQLite wrapper is smart and *modifies* t's Id to the one generated (autoincrement) by the insertion
        installation.S3BucketId = Installations.Where(inst => inst.Product == installation.Product).Max(inst => (int?)inst.S3BucketId)+1 ?? 0;
        return Insert(installation);
    }
    
    public static Boolean Create(Error error)
    {
        return Insert(error);
    }
    
    public static Boolean Create(Warning warning)
    {
        return Insert(warning);
    }
    
    public static Boolean Create(Folder folder)
    {
        return Insert(folder);
    }
    
    public static Boolean Create(User user)
    {
        return Insert(user);
    }
   
    public static Boolean Create(Session session)
    {
        return Insert(session);
    }
    
    public static Boolean Create(InstallationAccess installationAccess)
    {
        return Insert(installationAccess);
    }
    
    public static Boolean Create(FolderAccess folderAccess)
    {
        return Insert(folderAccess);
    }

    public static Boolean Create(OrderNumber2Installation o2i)
    {
        return Insert(o2i);
    }
    
    public static Boolean Create(UserAction action)
    {
         return Insert(action);
    }
    
    public static void HandleAction(UserAction newAction)
    {
        //Find the total number of actions for this installation
        var totalActions = UserActions.Count(action => action.InstallationId == newAction.InstallationId);

        //If there are 100 actions, remove the one with the oldest timestamp
        if (totalActions == 100)
        {
            var oldestAction = 
                UserActions.Where(action => action.InstallationId == newAction.InstallationId)
                    .OrderBy(action => action.Timestamp)
                    .FirstOrDefault();
                            
            //Remove the old action
            Delete(oldestAction);

            //Add the new action
            Create(newAction);
        }
        else
        {
            Console.WriteLine("---------------Added the new Action to the database-----------------");
            Create(newAction);
        }
    }
    
    //This function is called from the RabbitMQ manager when a new error arrives to the database.
    //We keep only the last 100 errors for each installation. If we already have stored 100 errors, we delete the older one and we insert the new one.
    
    public static void HandleError(Error newError,int installationId)
    {
        //Find the total number of errors for this installation
        var totalErrors = Errors.Count(error => error.InstallationId == installationId);

        //If there are 100 errors, remove the one with the oldest timestamp
        if (totalErrors == 100)
        {
            var oldestError = 
                Errors.Where(error => error.InstallationId == installationId)
                    .OrderBy(error => error.Date)
                    .FirstOrDefault();
                            
            //Remove the old error
            Delete(oldestError);

            //Add the new error
            Create(newError);
        }
        else
        {
            Console.WriteLine("---------------Added the new Alarm to the database-----------------");
            Create(newError);
        }
    }
    
    public static void HandleWarning(Warning newWarning,int installationId)
    {
        //Find the total number of warnings for this installation
        var totalWarnings = Warnings.Count(warning => warning.InstallationId == installationId);

        //If there are 100 warnings, remove the one with the oldest timestamp
        if (totalWarnings == 100)
        {
            var oldestWarning = 
                Warnings.Where(warning => warning.InstallationId == installationId)
                    .OrderBy(warning => warning.Date)
                    .FirstOrDefault();
                            
            //Remove the old warning
            Delete(oldestWarning);

            //Add the new warning
            Create(newWarning);
        }
        else
        {
            Console.WriteLine("---------------Added the new Warning to the database-----------------");
            Create(newWarning);
        }
    }
    
}