@namespace Oqtane.Modules.Controls
@inherits ModuleBase

@if (visible)
{
    <div class="app-admin-modal">
        <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">@Action</button>
                        }
                        <button type="button" class="btn btn-secondary" @onclick="DisplayModal">Cancel</button>
                    </div>
                </div>
            </div>
        </div>
    </div>
}
@if (authorized)
{
    <button class="@Class" @onclick="DisplayModal">@Text</button>
}

@code {
    [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 string EditMode { get; set; } // optional - specifies if a user must be in edit mode to see the action - default is true

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

    bool visible = false;
    bool editmode = true;
    bool authorized = false;

    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);
        }
        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);
                    security = (SecurityAccessLevel)moduleType.GetProperty("SecurityAccessLevel").GetValue(moduleobject, null);
                }
                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, "View", ModuleState.Permissions);
                    break;
                case SecurityAccessLevel.Edit:
                    authorized = UserSecurity.IsAuthorized(PageState.User, "Edit", ModuleState.Permissions);
                    break;
                case SecurityAccessLevel.Admin:
                    authorized = UserSecurity.IsAuthorized(PageState.User, Constants.AdminRole);
                    break;
                case SecurityAccessLevel.Host:
                    authorized = UserSecurity.IsAuthorized(PageState.User, Constants.HostRole);
                    break;
            }
        }
        return authorized;
    }

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

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