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** This file is part of the Qt VS Tools.
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using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.VCProjectEngine;
using EnvDTE;

namespace QtVsTools.Wizards.Util
{
    using Core;

    static class VCRulePropertyStorageHelper
    {
        public static void SetQtModules(DTE dte, List<string> modules)
        {
            ThreadHelper.ThrowIfNotOnUIThread();

            var newModules = modules.ToHashSet();
            if (modules.Count == 0)
                return;

            var project = HelperFunctions.GetSelectedQtProject(dte);
            if (project == null)
                return;

            var vcproject = project.Object as VCProject;
            if (vcproject == null)
                return;

            // TODO: There is already code providing such functionality, though it seems overly
            // complicated to use compared to this simple for loop (see VCPropertyStorageProvider).
            foreach (VCConfiguration config in vcproject.Configurations as IVCCollection) {
                var props = config.Rules.Item("QtRule10_Settings") as IVCRulePropertyStorage;
                var updatedModules = props.GetUnevaluatedPropertyValue("QtModules")
                    .Split(new char[] { ';' }, System.StringSplitOptions.RemoveEmptyEntries)
                    .ToHashSet()
                    .Union(newModules);
                props.SetPropertyValue("QtModules", string.Join(";", updatedModules));
            }
        }
    }
}