module ParasitemiaUI.About

open System
open System.Windows
open System.Windows.Media
open System.Windows.Markup
open System.Windows.Shapes
open System.Windows.Controls
open System.Diagnostics

let showWindow (parent: Window) =
    let window = Views.AboutWindow()
    window.Root.Owner <- parent
    window.Root.Left <- parent.Left + parent.ActualWidth / 2. - window.Root.Width / 2.
    window.Root.Top <- parent.Top + parent.ActualHeight / 2. - window.Root.Height / 2.

    let ctrl (name: string): 'a = window.Root.FindName(name) :?> 'a

    let butClose: Button = ctrl "butClose"
    let txtAbout: TextBlock = ctrl "txtAbout"

    let linkHESSO: Documents.Hyperlink = ctrl "linkHESSO"
    let linkCHUV: Documents.Hyperlink = ctrl "linkCHUV"
    let linkGBurri: Documents.Hyperlink = ctrl "linkGBurri"

    let version = System.Reflection.Assembly.GetEntryAssembly().GetName().Version
    let txtVersion = sprintf " %d.%d.%d" version.Major version.Minor version.Revision
    txtAbout.Inlines.FirstInline.ElementEnd.InsertTextInRun(txtVersion)

    let navigateTo = Navigation.RequestNavigateEventHandler(fun obj args ->
        Process.Start(ProcessStartInfo(args.Uri.AbsoluteUri)) |> ignore
        args.Handled <- true)

    linkHESSO.RequestNavigate.AddHandler(navigateTo);
    linkCHUV.RequestNavigate.AddHandler(navigateTo);
    linkGBurri.RequestNavigate.AddHandler(navigateTo);

#if DEBUG
    txtAbout.Inlines.FirstInline.ElementEnd.InsertTextInRun(" - DEBUG")
#endif

    butClose.Click.AddHandler(fun obj args -> window.Root.Close())

    window.Root.ShowDialog() |> ignore