@namespace Oqtane.Modules.Controls
@inherits ModuleControlBase

@if (_visible)
{
    <div class="app-actiondialog">
        <div class="modal" tabindex="-1" role="dialog">
            <div class="modal-dialog">
                <div class="modal-content">
                    <div class="modal-header">
                        <h5 class="modal-title">@Header</h5>
                        <button type="button" class="close" @onclick="DisplayModal" aria-label="Close">&times;</button>
                    </div>
                    <div class="modal-body">
                        <p>@Message</p>
                    </div>
                    <div class="modal-footer">
                        @if (!string.IsNullOrEmpty(Action))
                        {
                            <button type="button" class="@Class" @onclick="Confirm">@((MarkupString)_iconSpan) @Action</button>
                        }
                        <button type="button" class="btn btn-secondary" @onclick="DisplayModal">Cancel</button>
                    </div>
                </div>
            </div>
        </div>
    </div>
}
@if (_authorized)
{
    if (Disabled)
    {
        <button class="@Class" disabled>@((MarkupString)_iconSpan) @Text</button>
    }
    else
    {
        <button class="@Class" @onclick="DisplayModal">@((MarkupString)_iconSpan) @Text</button>
    }
}

@code {
    private bool _visible = false;
    private bool _editmode = false;
    private bool _authorized = false;
    private string _iconSpan = string.Empty;

    [Parameter]
    public string Header { get; set; } // required

    [Parameter]
    public string Message { get; set; } // required

    [Parameter]
    public string Text { get; set; } // optional - defaults to Action if not specified

    [Parameter]
    public string Action { get; set; } // optional

    [Parameter]
    public SecurityAccessLevel? Security { get; set; } // optional - can be used to explicitly specify SecurityAccessLevel

    [Parameter]
    public string Class { get; set; } // optional

    [Parameter]
    public bool Disabled { get; set; } // optional

    [Parameter]
    public string EditMode { get; set; } // optional - specifies if an authorized user must be in edit mode to see the action - default is false

    [Parameter]
    public Action OnClick { get; set; } // required if an Action is specified - executes a method in the calling component

    [Parameter]
    public string IconName { get; set; } // optional - specifies an icon for the link - default is no icon

    protected override void OnParametersSet()
    {
        if (string.IsNullOrEmpty(Text))
        {
            Text = Action;
        }
        if (string.IsNullOrEmpty(Class))
        {
            Class = "btn btn-success";
        }

        if (!string.IsNullOrEmpty(EditMode))
        {
            _editmode = bool.Parse(EditMode);
        }

        if (!string.IsNullOrEmpty(IconName))
        {
            _iconSpan = $"<span class=\"oi oi-{IconName}\"></span>&nbsp;";
        }

        _authorized = IsAuthorized();
    }

    private bool IsAuthorized()
    {
        bool authorized = false;
        if (PageState.EditMode || !_editmode)
        {
            SecurityAccessLevel security = SecurityAccessLevel.Host;
            if (Security == null)
            {
                string typename = ModuleState.ModuleType.Replace(Utilities.GetTypeNameLastSegment(ModuleState.ModuleType, 0) + ",", Action + ",");
                Type moduleType = Type.GetType(typename);
                if (moduleType != null)
                {
                    var moduleobject = Activator.CreateInstance(moduleType) as IModuleControl;
                    security = moduleobject.SecurityAccessLevel;
                }
                else
                {
                    security = SecurityAccessLevel.Anonymous; // occurs when an action does not have a corresponding module control
                }
            }
            else
            {
                security = Security.Value;
            }
            switch (security)
            {
                case SecurityAccessLevel.Anonymous:
                    authorized = true;
                    break;
                case SecurityAccessLevel.View:
                    authorized = UserSecurity.IsAuthorized(PageState.User,PermissionNames.View, ModuleState.Permissions);
                    break;
                case SecurityAccessLevel.Edit:
                    authorized = UserSecurity.IsAuthorized(PageState.User,PermissionNames.Edit, ModuleState.Permissions);
                    break;
                case SecurityAccessLevel.Admin:
                    authorized = UserSecurity.IsAuthorized(PageState.User, RoleNames.Admin);
                    break;
                case SecurityAccessLevel.Host:
                    authorized = UserSecurity.IsAuthorized(PageState.User, RoleNames.Host);
                    break;
            }
        }
        return authorized;
    }

    private void DisplayModal()
    {
        _visible = !_visible;
        StateHasChanged();
    }

    private void Confirm()
    {
        DisplayModal();
        OnClick();
    }
}