use std::collections::HashMap;
use std::sync::Arc;
use iced::{Background, Border, Length, Theme};
use iced::widget::{container, text, column, row, Space};
use iced::widget::combo_box;
use iced::border::Radius;
use iced::overlay::menu;
use iced::widget::text_input;
use tokio::runtime::Runtime;
use std::thread;
use crate::bluetooth::att::{ATTManager, ATTHandles};
use crate::devices::enums::{DeviceData, DeviceInformation, NothingState, DeviceState};
use crate::ui::window::Message;

pub fn nothing_view<'a>(
    mac: &'a str,
    devices_list: &HashMap<String, DeviceData>,
    state: &'a NothingState,
    att_manager: Arc<ATTManager>
) -> iced::widget::Container<'a, Message> {
    let mut information_col = iced::widget::column![];
    let mac = mac.to_string();
    if let Some(device) = devices_list.get(mac.as_str()) {
        if let Some(DeviceInformation::Nothing(ref nothing_info)) = device.information {
            information_col = information_col
                .push(text("Device Information").size(18).style(
                    |theme: &Theme| {
                        let mut style = text::Style::default();
                        style.color = Some(theme.palette().primary);
                        style
                    }
                ))
                .push(Space::with_height(iced::Length::from(10)))
                .push(
                    iced::widget::row![
                        text("Serial Number").size(16).style(
                            |theme: &Theme| {
                                let mut style = text::Style::default();
                                style.color = Some(theme.palette().text);
                                style
                            }
                        ),
                        Space::with_width(Length::Fill),
                        text(nothing_info.serial_number.clone()).size(16)
                    ]
                )
                .push(
                    iced::widget::row![
                        text("Firmware Version").size(16).style(
                            |theme: &Theme| {
                                let mut style = text::Style::default();
                                style.color = Some(theme.palette().text);
                                style
                            }
                        ),
                        Space::with_width(Length::Fill),
                        text(nothing_info.firmware_version.clone()).size(16)
                    ]
                );
        }
    }

    let noise_control_mode = container(row![
            text("Noise Control Mode").size(16).style(
                |theme: &Theme| {
                    let mut style = text::Style::default();
                    style.color = Some(theme.palette().text);
                    style
                }
            ),
            Space::with_width(Length::Fill),
            {
                let state_clone = state.clone();
                let mac = mac.clone();
                let att_manager_clone = att_manager.clone();
                combo_box(
                    &state.anc_mode_state,
                    "Select Noise Control Mode",
                    Some(&state.anc_mode.clone()),
                    {
                        move |selected_mode| {
                            let att_manager = att_manager_clone.clone();
                            let selected_mode_c = selected_mode.clone();
                            let mac_s = mac.clone();
                            run_async_in_thread(
                                async move {
                                    if let Err(e) = att_manager.write(
                                        ATTHandles::NothingEverything,
                                        &[
                                            0x55,
                                            0x60, 0x01,
                                            0x0F, 0xF0,
                                            0x03, 0x00,
                                            0x00, 0x01,
                                            selected_mode_c.to_byte(), 0x00,
                                            0x00, 0x00
                                        ]
                                    ).await {
                                        log::error!("Failed to set noise cancellation mode for device {}: {}", mac_s, e);
                                    }
                                }
                            );
                            let mut state = state_clone.clone();
                            state.anc_mode = selected_mode.clone();
                            Message::StateChanged(mac.to_string(), DeviceState::Nothing(state))
                        }
                    }
                )
                .width(Length::from(200))
                .input_style(
                    |theme: &Theme, _status| {
                        text_input::Style {
                            background: Background::Color(theme.palette().primary.scale_alpha(0.2)),
                            border: Border {
                                width: 1.0,
                                color: theme.palette().text.scale_alpha(0.3),
                                radius: Radius::from(4.0)
                            },
                            icon: Default::default(),
                            placeholder: theme.palette().text,
                            value: theme.palette().text,
                            selection: Default::default(),
                        }
                    }
                )
                .padding(iced::Padding{
                    top: 5.0,
                    bottom: 5.0,
                    left: 10.0,
                    right: 10.0,
                })
                .menu_style(
                    |theme: &Theme| {
                        menu::Style {
                            background: Background::Color(theme.palette().background),
                            border: Border {
                                width: 1.0,
                                color: theme.palette().text,
                                radius: Radius::from(4.0)
                            },
                            text_color: theme.palette().text,
                            selected_text_color: theme.palette().text,
                            selected_background: Background::Color(theme.palette().primary.scale_alpha(0.3)),
                        }
                    }
                )
            }
        ]
        .align_y(iced::Alignment::Center)
    )
        .padding(iced::Padding{
            top: 5.0,
            bottom: 5.0,
            left: 18.0,
            right: 18.0,
        })
        .style(
            |theme: &Theme| {
                let mut style = container::Style::default();
                style.background = Some(Background::Color(theme.palette().primary.scale_alpha(0.1)));
                let mut border = Border::default();
                border.color = theme.palette().primary.scale_alpha(0.5);
                style.border = border.rounded(16);
                style
            }
        );

    container(
        column![
            noise_control_mode,
            Space::with_height(Length::from(20)),
            container(information_col)
                .style(
                    |theme: &Theme| {
                        let mut style = container::Style::default();
                        style.background = Some(Background::Color(theme.palette().primary.scale_alpha(0.1)));
                        let mut border = Border::default();
                        border.color = theme.palette().text;
                        style.border = border.rounded(20);
                        style
                    }
                )
                .padding(20)
        ]
    )
        .padding(20)
        .center_x(Length::Fill)
        .height(Length::Fill)
}

fn run_async_in_thread<F>(fut: F)
where
    F: Future<Output = ()> + Send + 'static,
{
    thread::spawn(move || {
        let rt = Runtime::new().unwrap();
        rt.block_on(fut);
    });
}