classdef Parameter2 < handle
    % PARAMETER2: Represents a physical parameter with mappings between values and indices
    
    properties
        name
        values
        length
        physToIndexMap  % Rename this from 'getPhysForIndex'
        indexToPhysMap  % Rename this from 'getIndexForPhys'
    end

    methods
        function obj = Parameter2(name, values)
            % Constructor to initialize the Parameter2 object
            obj.name = name;
            obj.values = values;
            obj.length = numel(values);
            
            % Initialize the mappings
            obj.physToIndexMap = containers.Map('KeyType', 'double', 'ValueType', 'any');
            obj.indexToPhysMap = containers.Map('KeyType', 'double', 'ValueType', 'any');
            obj = obj.buildMappings();
        end

        function obj = buildMappings(obj)
            % Build mappings between physical values and indices
            for idx = 1:obj.length
                obj.indexToPhysMap(idx) = obj.values(idx);
                obj.physToIndexMap(obj.values(idx)) = idx;
            end
        end

        function physVal = getPhysForIndex(obj, idx)
            % Return the physical value corresponding to the index
            if isKey(obj.indexToPhysMap, idx)
                physVal = obj.indexToPhysMap(idx);
            else
                error('Index out of range for parameter %s', obj.name);
            end
        end

        function idx = getIndexByPhys(obj, physVal)
            % Return the index corresponding to the physical value
            if isKey(obj.physToIndexMap, physVal)
                idx = obj.physToIndexMap(physVal);
            else
                error('Physical value %g not found in parameter %s', physVal, obj.name);
            end
        end
    end
end