use gpui::{App, AppContext, ParentElement, Styled, WeakEntity, Window, div, px};
use nostr_sdk::prelude::SecretKey;
use theme::ActiveTheme;
use ui::dialog::DialogButtonProps;
use ui::input::InputState;
use ui::{WindowExtension, v_flex};

use crate::{GroupPanel, field};

const CODE_LEN: usize = 12;

pub(crate) fn open(panel: WeakEntity<GroupPanel>, window: &mut Window, cx: &mut App) {
    let code = SecretKey::generate().to_secret_hex();
    let code: String = code.chars().take(CODE_LEN).collect();

    let input = cx.new(|cx| {
        InputState::new(window, cx)
            .placeholder("Invite code")
            .default_value(code)
    });

    window.open_dialog(cx, move |this, _window, cx| {
        let panel = panel.clone();
        let input = input.clone();

        this.width(px(420.))
            .confirm()
            .title("Invite link")
            .button_props(
                DialogButtonProps::default()
                    .cancel_text("Cancel")
                    .ok_text("Copy link"),
            )
            .child(
                v_flex().gap_3().child(
                    div()
                        .text_sm()
                        .text_color(cx.theme().text_muted)
                        .child("Share the code with whoever should be able to join. The relay must accept it."),
                )
                .child(field("Code", &input, cx)),
            )
            .on_ok(move |_event, _window, cx| {
                let code = input.read(cx).value().trim().to_owned();

                if code.is_empty() {
                    return false;
                }

                if let Err(error) = panel.update_in(cx, |panel, window, cx| {
                    panel.create_invite(code, window, cx);
                }) {
                    log::warn!("nip29: creating an invite failed: {error}");
                }

                true
            })
    });
}