@namespace Oqtane.Themes.Controls
@inherits ThemeControlBase

@if (menu != string.Empty)
{
    <div class="app-menu">
        @((MarkupString)menu)
    </div>
}

@code {
    private string menu = string.Empty;
    
    [Parameter]
    public string Orientation { get; set; }

    protected override void OnParametersSet()
    {
        switch (Orientation)
        {
            case "Horizontal":
                CreateHorizontalMenu();
                break;
            default: // Vertical
                CreateVerticalMenu();
                break;
        }
    }

    private void CreateVerticalMenu()
    {
        var level = -1;
        var securitylevel = int.MaxValue;

        menu = "<ul class=\"nav flex-column\">\n";

        foreach (Page p in PageState.Pages.Where(item => item.IsNavigation && !item.IsDeleted))
        {
            if (UserSecurity.IsAuthorized(PageState.User,PermissionNames.View, p.Permissions) && p.Level <= securitylevel)
            {
                securitylevel = int.MaxValue;

                menu += "<li class=\"nav-item px-3\">";
                if (string.IsNullOrEmpty(p.Url))
                {
                    menu += "<a href=\"" + NavigateUrl(p.Path) + "\" class=\"nav-link\" style=\"padding-left: " + ((p.Level + 1) * 15).ToString() + "px !important;\">";
                }
                else
                {
                    string target = String.Empty;
                    if (p.Url.StartsWith("http"))
                    {
                        target = " target=\"_new\"";
                    }
                    menu += "<a href=\"" + p.Url + "\" class=\"nav-link\" style=\"padding-left: " + ((p.Level + 1) * 15).ToString() + "px !important;\"" + target + ">";
                }
                
                if (p.HasChildren)
                {
                    menu += "<i class=\"oi oi-chevron-right\"></i>";
                }
                
                if (p.Icon != string.Empty)
                {
                    menu += "<span class=\"oi oi-" + p.Icon + "\" aria-hidden=\"true\"></span>";
                }
                
                menu += p.Name;
                menu += "</a>\n";
                menu += "</li>\n";

                level = p.Level;
            }
            else
            {
                if (securitylevel == int.MaxValue)
                {
                    securitylevel = p.Level;
                }
            }
        }
        
        menu += "</ul>";
    }

    private void CreateHorizontalMenu()
    {
        var url = String.Empty;
        var target = String.Empty;

        menu = "<button class=\"navbar-toggler\" type=\"button\" data-toggle=\"collapse\" data-target=\"#Menu\" aria-controls=\"Menu\" aria-expanded=\"false\" aria-label=\"Toggle navigation\"><span class=\"navbar-toggler-icon\"></span></button>";
        menu += "<div class=\"collapse navbar-collapse\" id=\"Menu\">";
        menu += "<ul class=\"navbar-nav mr-auto\">";
        
        foreach (Page p in PageState.Pages.Where(item => item.IsNavigation && !item.IsDeleted))
        {
            if (UserSecurity.IsAuthorized(PageState.User,PermissionNames.View, p.Permissions) && p.ParentId == PageState.Page.ParentId && p.Level == PageState.Page.Level)
            {
                if (string.IsNullOrEmpty(p.Url))
                {
                    url = NavigateUrl(p.Path);
                    target = String.Empty;
                }
                else
                {
                    url = p.Url;
                    if (p.Url.StartsWith("http"))
                    {
                        target = " target=\"_new\"";
                    }
                }

                if (p.PageId == PageState.Page.PageId)
                {
                    menu += "<li class=\"nav-item active\">" +
                        "<a class=\"nav-link\" href=\"" + NavigateUrl(p.Path) + "\">" +
                        ((p.Icon != string.Empty) ? "<span class=\"oi oi-" + p.Icon + "\" aria-hidden=\"true\"></span> " : string.Empty) + 
                        p.Name + " <span class=\"sr-only\">(current)</span></a></li>";
                }
                else
                {
                    menu += "<li class=\"nav-item\">" +
                        "<a class=\"nav-link\" href=\"" + NavigateUrl(p.Path) + "\">" +
                        ((p.Icon != string.Empty) ? "<span class=\"oi oi-" + p.Icon + "\" aria-hidden=\"true\"></span> " : string.Empty) + 
                        p.Name + "</a></li>";
                }
            }
        }
        
        menu += "</ul>";
        menu += "</div>";
    }
}