native-dialog 0.9.6

use objc2::MainThreadOnly;
use objc2::rc::Retained as Id;
use objc2_app_kit::{NSAlert, NSApp, NSButton, NSImage, NSModalResponse, NSWindow};
use objc2_foundation::{NSBundle, NSString};

use super::{NSApplicationExt, NSBundleExt, NSImageExt};
use crate::MessageLevel;
use crate::ffi::UnsafeWindowHandle;

pub trait NSAlertExt {
    fn show(&self, owner: UnsafeWindowHandle) -> NSModalResponse;
    fn run(&self, owner: Option<&NSWindow>) -> NSModalResponse;

    fn set_level_icon(&self, level: MessageLevel);
    fn set_informative_text(&self, text: &str);
    fn set_message_text(&self, text: &str);
    fn add_button(&self, title: &str) -> Id<NSButton>;
}

impl NSAlertExt for NSAlert {
    fn show(&self, owner: UnsafeWindowHandle) -> NSModalResponse {
        let owner = unsafe { owner.as_appkit() };
        self.run(owner.as_deref())
    }

    fn run(&self, owner: Option<&NSWindow>) -> NSModalResponse {
        let app = NSApp(self.mtm());
        match owner {
            Some(window) => app.run_sheet(window, self),
            None => app.run_modal(self),
        }
    }

    fn set_level_icon(&self, level: MessageLevel) {
        let bundle = "/System/Library/CoreServices/CoreTypes.bundle";
        let icon = NSBundle::from_path(bundle)
            .and_then(|bundle| {
                bundle.image(match level {
                    MessageLevel::Info => "AlertNoteIcon",
                    MessageLevel::Warning => "AlertCautionIcon",
                    MessageLevel::Error => "AlertStopIcon",
                })
            })
            .unwrap_or_else(|| match level {
                MessageLevel::Info => NSImage::stack(
                    &NSImage::text("⚪", 1.0, true),
                    &NSImage::text("𝒊", 0.667, false).etched(),
                    (0.0, 0.667),
                ),
                MessageLevel::Warning => NSImage::text("⚠️", 1.0, true),
                MessageLevel::Error => NSImage::stack(
                    &NSImage::text("🛑", 1.0, true),
                    &NSImage::text("❕", 0.6, true),
                    (1.0, -0.5),
                ),
            });

        unsafe { self.setIcon(Some(&icon)) };
    }

    fn set_informative_text(&self, text: &str) {
        let text = NSString::from_str(text);
        self.setInformativeText(&text);
    }

    fn set_message_text(&self, text: &str) {
        let text = NSString::from_str(text);
        self.setMessageText(&text);
    }

    fn add_button(&self, title: &str) -> Id<NSButton> {
        let title = NSString::from_str(title);
        self.addButtonWithTitle(&title)
    }
}