classdef DipolarGas < handle & matlab.mixin.Copyable

    properties (Access = public)
        NumberOfAtoms;
        DipolarAngle;
        ScatteringLength;
        TrapFrequencies;
        NumberOfPoints;
        Dimensions;
        CutoffType;
        PotentialType;

        SimulationMode; 
        TimeStep;
        SimulationTime;
        
        %Flags
        
        DebugMode;
        DoSave;
        SaveDirectory;
    end
    
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    %- Methods
    
    methods
        function this  = DipolarGas(varargin)
            
            p = inputParser;
            p.KeepUnmatched = true;
            addParameter(p, 'NumberOfAtoms',     1E6,...
                @(x) assert(isnumeric(x) && isscalar(x) && (x > 0)));  
            addParameter(p, 'DipolarAngle',     pi/2,...
                @(x) assert(isnumeric(x) && isscalar(x) && (x > -2*pi) && (x < 2*pi)));
            addParameter(p, 'ScatteringLength',  120,...
                @(x) assert(isnumeric(x) && isscalar(x) && (x > -150) && (x < 150)));
            addParameter(p, 'TrapFrequencies',   100 * ones(1,3),...
                @(x) assert(isnumeric(x) && isvector(x) && all(x > 0)));
            addParameter(p, 'NumberOfPoints',    128 * ones(1,3),...
                @(x) assert(isnumeric(x) && isvector(x) && all(x > 0)));
            addParameter(p, 'Dimensions',        10 * ones(1,3),...
                @(x) assert(isnumeric(x) && isvector(x) && all(x > 0)));
            addParameter(p, 'SimulationMode', 'ImaginaryTimeEvolution',... 
                @(x) any(strcmpi(x,{'ImaginaryTimeEvolution','RealTimeEvolution'})));
            addParameter(p, 'TimeStep',         5E-4,...
                @(x) assert(isnumeric(x) && isscalar(x) && (x > 0)));  
            addParameter(p, 'SimulationTime',      3,...
                @(x) assert(isnumeric(x) && isscalar(x) && (x > 0)));  
            addParameter(p, 'DebugMode',        false,...
                @islogical);
            addParameter(p, 'SaveData',         false,...
                @islogical);
            addParameter(p, 'SaveDirectory', './Data',...
                @ischar);
            
            p.parse(varargin{:});
            
            this.NumberOfAtoms        = p.Results.NumberOfAtoms;
            this.DipolarAngle         = p.Results.DipolarAngle;
            this.ScatteringLength     = p.Results.ScatteringLength;
            this.TrapFrequencies      = p.Results.TrapFrequencies;
            this.NumberOfPoints       = p.Results.NumberOfPoints;
            this.Dimensions           = p.Results.Dimensions;
            
            this.SimulationMode       = p.Results.SimulationMode;
            this.TimeStep             = p.Results.TimeStep;
            this.SimulationTime       = p.Results.SimulationTime;  
            
            this.DebugMode            = p.Results.DebugMode;
            this.DoSave               = p.Results.SaveData;
            this.SaveDirectory        = p.Results.SaveDirectory;
            
            switch this.SimulationMode
                case "ImaginaryTimeEvolution" 
                % Development In progress
                case "RealTimeEvolution"
                % Development In progress
            end
        end
    end

    methods
        function set.TimeStep(this, val)
            assert(val > 1e-06, 'Not time efficient to compute for time steps smaller than 1 microsecond!');
            this.TimeStep = val;
        end
        function ret = get.TimeStep(this)
            ret = this.TimeStep;
        end
        function set.SimulationTime(this, val)
%             assert(val <= 5e-03, 'Not time efficient to compute for time spans longer than 5 milliseconds!');
            this.SimulationTime = val;
        end
        function ret = get.SimulationTime(this)
            ret = this.SimulationTime;
        end
        function set.NumberOfAtoms(this, val)
            assert(val <= 1E6, '!!Not time efficient to compute for atom numbers larger than 1,000,000!!');
            this.NumberOfAtoms = val;
        end
        function ret = get.NumberOfAtoms(this)
            ret = this.NumberOfAtoms;
        end
        
        function set.DebugMode(this, val)
            this.DebugMode = val;
        end
        function ret = get.DebugMode(this)
            ret = this.DebugMode;
        end
        function set.DoSave(this, val)
            this.DoSave = val;
        end
        function ret = get.DoSave(this)
            ret = this.DoSave;
        end
        function set.SaveDirectory(this, val)
            this.SaveDirectory = val;
        end
        function ret = get.SaveDirectory(this)
            ret = this.SaveDirectory;
        end
        
    end % - setters and getters
    
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    %- Methods
    
    methods(Access = protected)
        function cp = copyElement(this)
            % Shallow copy object
            cp = copyElement@matlab.mixin.Copyable(this);
            
            % Forces the setter to redefine the function handles to the new copied object
            
            pl = properties(this);
            for k = 1:length(pl)
                sc = superclasses(this.(pl{k}));
                if any(contains(sc,{'matlab.mixin.Copyable'}))
                    cp.(pl{k}) = this.(pl{k}).copy();
                end
            end
        end
    end
    
    methods (Static)
        
        % Creates an Instance of Class, ensures singleton behaviour (that there
        % can only be one Instance of this class
        function singleObj = getInstance(varargin)
            % Creates an Instance of Class, ensures singleton behaviour
            persistent localObj;
            if isempty(localObj) || ~isvalid(localObj)
                localObj =  Simulator.DipolarGas(varargin{:});
            end
            singleObj = localObj;
        end
    end
    
end