use super::sidebar::SideBarOutputMsg;
use super::{
    control_panel::{ControlPanelInputMsg, ControlPanelModel},
    messages::{MonitorInputMsg, MonitorOutputMsg},
    monitor::MonitorModel,
    setting::SettingModel,
    ControlPanelOutputMsg, TimelineMsg,
};
use crate::components::sidebar::{SideBarInputMsg, SideBarModel};
use crate::data_utils::tools;
use crate::pipeline::element::DataTarget;
use crate::pipeline::element_imp::{Context, ElementInput, GridImpConfig};
use crate::pipeline::runner::Runner;
use crate::pipeline::OffscreenRenderer;
use crate::predefined::color_mapper::{BoundaryNorm, ColorMapper, ColorMapperComb, Discrete};
use crate::predefined::widgets::ColorBar;
use crate::utils::meshgrid;
use crate::widgets::{AssoElement, DynamicCol};
use crate::{
    actions::register_layer_actions,
    pipeline::element::{Element, InstantElement, InstantElementDrawerType, TimeSeriesElement},
};
use crate::{
    coords::{
        cms::CMS,
        proj::{Mercator, ProjectionS},
        Mapper,
    },
    data::MetaInfo,
    errors::RenderError,
    pipeline::{Dispatcher, Pipeline, RenderResult},
    plugin_system::init_plugin,
    widgets::render::Layer,
    CONFIG, PLUGIN_MANAGER,
};
use abi_stable::std_types::RStr;
use adw::prelude::*;
use chrono::{prelude::*, Duration};
use futures::future::BoxFuture;
use gtk::glib::clone;
use gtk::prelude::*;
use ndarray::{ArrayView1, ArrayViewD};
use once_cell::sync::Lazy;
use radarg_plugin_interface::{PluginResult, VecResult};
use relm4::actions::{AccelsPlus, RelmAction, RelmActionGroup};
use relm4::*;
use relm4::{gtk, Component, ComponentParts, ComponentSender, RelmWidgetExt, SimpleComponent};
use relm4_components::open_dialog::{
    OpenDialog, OpenDialogMsg, OpenDialogResponse, OpenDialogSettings,
};
use smallvec::SmallVec;
use std::marker::PhantomData;
use std::{
    any::Any,
    borrow::{Borrow, BorrowMut},
    cell::RefCell,
    collections::{BTreeMap, HashMap},
    path::PathBuf,
    rc::Rc,
    sync::{Arc, Mutex},
};
use tokio::{sync::oneshot, task};
use tracing::{debug, error, info, warn};
use tracing_subscriber::fmt::layer;

relm4::new_action_group!(FileActionGroup, "file");
relm4::new_stateless_action!(OpenAction, FileActionGroup, "open");
pub static FILE_PATH_ROOT: Lazy<Mutex<PathBuf>> = Lazy::new(|| Mutex::new(PathBuf::new()));

pub type ElementKey = String;

#[derive(Debug)]
pub enum LayerMsg {
    Add(Layer),
    Remove(usize),
    SwitchToTime(usize),
    Select(Vec<usize>),
    RemoveSelected,
}

#[derive(Debug)]
pub enum AppMsg {
    CloseRequest,
    Close,
    OpenDialog,
    LayerManager(LayerMsg),
    Layer,
    NewElement(Element),
    DeleteElement(ElementKey),
}
pub type Buffer = Rc<RefCell<HashMap<String, BTreeMap<DateTime<Utc>, Option<RenderResult>>>>>;
type RcDispatcher = Rc<Dispatcher>;
#[tracker::track]
pub struct AppModel {
    #[do_not_track]
    dispatcher: RcDispatcher,
    #[do_not_track]
    cms: CMS,
    waiting_for: Option<DateTime<Utc>>,
    #[do_not_track]
    open_dialog: Controller<OpenDialog>,
    #[do_not_track]
    control: Controller<ControlPanelModel>,
    #[do_not_track]
    render: Controller<MonitorModel>,
    #[do_not_track]
    sidebar: Controller<SideBarModel>,
    selected_layer: Vec<usize>,
    #[do_not_track]
    layers: Rc<RefCell<Vec<Layer>>>,
    #[do_not_track]
    elements: Vec<Arc<Mutex<TimeSeriesElement>>>,
    #[do_not_track]
    setting: Controller<SettingModel>,
}

#[derive(Debug)]
pub enum AppCommand {
    PrepareFinished(Vec<Result<RenderResult, RenderError>>),
    TestBuffer((String, RenderResult)),
    Test,
}

#[relm4::component(pub)]
impl Component for AppModel {
    type CommandOutput = AppCommand;
    type Init = ();
    type Input = AppMsg;
    type Output = ();

    view! {
        #[root]
        main_window=adw::ApplicationWindow {
            set_default_width: 1200,
            set_default_height: 900,
            set_focus_on_click:true,
            connect_close_request[sender] => move |_| {
                sender.input(AppMsg::CloseRequest);
                gtk::glib::Propagation::Proceed
            },
            gtk::Box{
                set_orientation: gtk::Orientation::Vertical,
                set_valign:gtk::Align::Fill,
                set_spacing:2,
                gtk::HeaderBar{
                    pack_start=&adw::ViewSwitcher{
                        set_stack: Some(&view_stack),
                    }
                },
                #[name="view_stack"]
                adw::ViewStack{
                    set_hexpand:true,
                    set_vexpand:true,
                },
            },
            connect_close_request[sender] => move |_| {
                sender.input(AppMsg::CloseRequest);
                gtk::glib::Propagation::Proceed
            }
        },
        popover_child = gtk::Spinner {
            set_spinning: true,
        },
        home_page = gtk::Box{
                set_orientation: gtk::Orientation::Vertical,
                set_hexpand:true,
                set_vexpand:true,
                gtk::Box{
                    set_orientation: gtk::Orientation::Horizontal,
                    set_margin_top: 2,
                    set_margin_start: 10,
                    set_margin_end: 10,
                    #[name="popover_menu_bar"]
                    gtk::PopoverMenuBar::from_model(Some(&main_menu)){
                        set_hexpand: true,
                    },
                },
                model.control.widget(),
                #[name="monitor_toast"]
                adw::ToastOverlay{
                    set_hexpand: true,
                    set_vexpand: true,
                    DynamicCol {
                        set_end_width: 300,
                        set_hexpand: true,
                        set_vexpand: true,
                        #[wrap(Some)]
                        #[name="paned"]
                        set_child_paned = &gtk::Paned{
                            #[local_ref]
                            #[wrap(Some)]
                            set_start_child=render->gtk::Frame{},
                            #[local_ref]
                            #[wrap(Some)]
                            set_end_child=sidebar->gtk::Box{},
                        }
                    }
                },
        },
        home_stack_page = view_stack.add_titled(&home_page, Some("home"), "Home") -> adw::ViewStackPage{
            set_icon_name:Some("home-filled"),
        },
        setting_stack_page = view_stack.add_titled(model.setting.widget(), Some("setting"), "Setting") -> adw::ViewStackPage{
            set_icon_name:Some("settings-filled")
        },
    }

    menu! {
        main_menu: {
            "File" {
                "Open" => OpenAction,
                "Open Folder" => OpenAction,
            },
            "Edit" {
                "New Layer" => OpenAction,
                "Undo" => OpenAction,
                "Redo" => OpenAction,
            },
            "Plugins" {
                "Plugin1" => OpenAction,
                "Plugin2" => OpenAction,
            },
        }
    }

    fn init(
        params: Self::Init,
        root: Self::Root,
        sender: ComponentSender<Self>,
    ) -> ComponentParts<Self> {
        let layers = Rc::new(RefCell::new(vec![
            Layer::new(true, "Layer 1".to_string(), AssoElement::Test),
            Layer::new(true, "Layer 2".to_string(), AssoElement::Test),
        ]));
        let control = ControlPanelModel::builder().launch(layers.clone()).forward(
            sender.input_sender(),
            |msg| match msg {
                ControlPanelOutputMsg::OpenFile((key, time)) => AppMsg::Close,
            },
        );

        let sidebar =
            SideBarModel::builder()
                .launch(layers.clone())
                .forward(sender.input_sender(), |msg| {
                    AppMsg::LayerManager(match msg {
                        SideBarOutputMsg::SelectLayer(idx) => LayerMsg::Select(idx),
                        SideBarOutputMsg::NewLayer(layer) => LayerMsg::Add(layer),
                        SideBarOutputMsg::SwitchToTimeSeries(idx) => LayerMsg::SwitchToTime(idx),
                    })
                });
        let render =
            MonitorModel::builder()
                .launch(layers.clone())
                .forward(sender.input_sender(), |a| match a {
                    MonitorOutputMsg::LayerRenderFinished => AppMsg::Close,
                    _ => AppMsg::Close,
                });

        let setting = SettingModel::builder()
            .launch(())
            .forward(sender.input_sender(), |a| AppMsg::Close);

        let mut dispatcher = Rc::new(Dispatcher::new(5, 5, chrono::Duration::minutes(1)));
        let cms = CMS::new(Mercator::default().into(), (3000.0, 3000.0));

        let dialog = {
            let dialog_dispatcher = dispatcher.clone();
            let dialog_sidebar_sender = sidebar.sender().clone();
            let dialog_render_sender = render.sender().clone();
            OpenDialog::builder()
                .transient_for_native(&root)
                .launch(OpenDialogSettings::default())
                .forward(sender.input_sender(), move |response| match response {
                    OpenDialogResponse::Accept(path) => {
                        *FILE_PATH_ROOT.lock().unwrap() = path.clone();
                        let data = Self::open_file_only(path);
                        let meta: MetaInfo = (&data.meta).clone().into();
                        let (lat_start, lat_end) = meta.lat_range.unwrap();
                        let (lon_start, lon_end) = meta.lon_range.unwrap();
                        let imp = tools(&data);
                        // let element_impl = plugin_result_impl(&data);
                        let mut renderer = OffscreenRenderer::new(3000, 3000).unwrap();
                        let mut canvas = renderer.create_canvas();
                        let mut dialog_cms = CMS::new(Mercator::default().into(), (3000.0, 3000.0));
                        let mut context = Context::new(dialog_cms, canvas);

                        use femtovg::Color;

                        let mut runner = Runner::new(
                            imp,
                            Arc::new(GridImpConfig {
                                color_map: ColorMapperComb::BoundaryNormDiscrete(ColorMapper::new(
                                    Discrete::new(vec![
                                        Color::rgb(0, 172, 164),
                                        Color::rgb(192, 192, 254),
                                        Color::rgb(122, 114, 238),
                                        Color::rgb(30, 38, 208),
                                        Color::rgb(166, 252, 168),
                                        Color::rgb(0, 234, 0),
                                        Color::rgb(16, 146, 26),
                                        Color::rgb(252, 244, 100),
                                        Color::rgb(200, 200, 2),
                                        Color::rgb(140, 140, 0),
                                        Color::rgb(254, 172, 172),
                                        Color::rgb(254, 100, 92),
                                        Color::rgb(238, 2, 48),
                                        Color::rgb(212, 142, 254),
                                        Color::rgb(170, 36, 250),
                                    ]),
                                    BoundaryNorm::new(
                                        vec![
                                            0i8, 5i8, 10i8, 15i8, 20i8, 25i8, 30i8, 35i8, 40i8,
                                            45i8, 50i8, 55i8, 60i8, 65i8, 70i8, 75i8,
                                        ],
                                        false,
                                        Some(-125),
                                    ),
                                )),
                            }),
                            context,
                        );

                        let target = runner.run(&data);
                        let data_target = DataTarget::new(Some(data), target);

                        let element = Element::create_instant(
                            InstantElementDrawerType::Prepared(data_target),
                            dialog_dispatcher.clone(),
                            "ET".to_string(),
                        )
                        .get_instance();
                        let layer = Layer::new(
                            true,
                            "New Layer".to_string(),
                            AssoElement::Instant(element),
                        );
                        dialog_sidebar_sender.emit(SideBarInputMsg::AddMetaItems(meta.to_map()));
                        dialog_render_sender.emit(MonitorInputMsg::SetRenderRange(
                            lon_start, lon_end, lat_start, lat_end,
                        ));

                        // let data_target = element_impl.render(&data, &mut canvas, &mut dialog_cms);
                        // let data_target = DataTarget::new(Some(data), data_target);
                        // let element = Element::create_instant(
                        //     InstantElementDrawerType::Prepared((data_target, element_impl)),
                        //     dialog_dispatcher.clone(),
                        //     "ET".to_string(),
                        // )
                        // .get_instance();
                        // let layer = Layer::new(
                        //     true,
                        //     "New Layer".to_string(),
                        //     AssoElement::Instant(element),
                        // );
                        // dialog_sidebar_sender.emit(SideBarInputMsg::AddMetaItems(meta.to_map()));
                        // dialog_render_sender.emit(MonitorInputMsg::SetRenderRange(
                        //     lon_start, lon_end, lat_start, lat_end,
                        // ));
                        // let layer = Layer::new(true, "New Layer".to_string(), AssoElement::Test);

                        AppMsg::LayerManager(LayerMsg::Add(layer))
                    }
                    _ => AppMsg::Close,
                })
        };

        let buffer: Buffer = Rc::new(RefCell::new(HashMap::new()));
        let model = AppModel {
            cms,
            dispatcher,
            waiting_for: None,
            elements: Vec::with_capacity(20),
            open_dialog: dialog,
            selected_layer: vec![],
            sidebar,
            control,
            render,
            layers,
            setting,
            tracker: 0,
        };

        let render = model.render.widget();
        let sidebar = model.sidebar.widget();
        let widgets = view_output!();
        let mut group = RelmActionGroup::<FileActionGroup>::new();
        relm4::main_application().set_accelerators_for_action::<OpenAction>(&["<primary>O"]);
        register_layer_actions(&widgets.main_window, sender.clone());
        let action: RelmAction<OpenAction> = {
            RelmAction::new_stateless(move |_| {
                sender.input(AppMsg::OpenDialog);
            })
        };
        group.add_action(action);
        group.register_for_widget(&widgets.main_window);
        ComponentParts { model, widgets }
    }

    fn update_with_view(
        &mut self,
        widgets: &mut Self::Widgets,
        msg: Self::Input,
        _sender: ComponentSender<Self>,
        root: &Self::Root,
    ) {
        self.reset();
        match msg {
            AppMsg::LayerManager(msg) => match msg {
                LayerMsg::Add(layer) => {
                    (*self.layers).borrow_mut().push(layer);
                    self.sidebar.sender().send(SideBarInputMsg::RefreshList);
                }
                LayerMsg::SwitchToTime(idx) => {
                    let mut layer = (*self.layers).borrow_mut();
                    let switched_layer = layer.get_mut(idx).unwrap();
                    let asso_element = switched_layer.pop_associated_element();

                    if let AssoElement::Instant(e) = asso_element {
                        let dispatcher = self.dispatcher.clone();
                        let cms = self.cms.clone();
                        let (mut series, start_time) = e.to_time_series(dispatcher, cms);
                        switched_layer.set_time(start_time);
                        series.register(start_time).unwrap();
                        let element = Arc::new(Mutex::new(series));
                        switched_layer
                            .set_associated_element(AssoElement::TimeSeries(element.clone()));
                        self.elements.push(element);
                    }
                    self.sidebar.sender().send(SideBarInputMsg::RefreshList);
                }

                LayerMsg::Select(idx) => {
                    self.set_selected_layer(idx);
                }

                LayerMsg::RemoveSelected => {
                    let mut layer = (*self.layers).borrow_mut();
                    let selected = self.selected_layer.clone();
                    for idx in selected {
                        layer.remove(idx);
                    }
                    self.sidebar.sender().send(SideBarInputMsg::RefreshList);
                }

                LayerMsg::Remove(idx) => {
                    let mut layers = (*self.layers).borrow_mut();
                    let mut layer = layers.remove(idx);
                    if let AssoElement::TimeSeries(e) = layer.pop_associated_element() {
                        let size = Arc::strong_count(&e);
                    }
                    self.sidebar.sender().send(SideBarInputMsg::RefreshList);
                }
            },
            AppMsg::CloseRequest => {
                relm4::main_application().quit();
            }
            AppMsg::Close => {}
            AppMsg::OpenDialog => {
                self.open_dialog.emit(OpenDialogMsg::Open);
            }
            _ => {}
        }
        self.update_view(widgets, _sender);
    }

    fn update_cmd(
        &mut self,
        message: Self::CommandOutput,
        sender: ComponentSender<Self>,
        root: &Self::Root,
    ) {
        match message {
            AppCommand::PrepareFinished(mut v) => {}
            _ => {
                println!("test");
            }
        }
    }
}

impl AppModel {
    fn open_file(
        path: impl AsRef<std::path::Path>,
        dispatcher: Rc<Dispatcher>,
        cms: CMS,
    ) -> Option<(Option<Box<dyn Any + Send + Sync>>, Element)> {
        let plugin = PLUGIN_MANAGER.get_plugin_by_name("etws_loader").unwrap();
        let mut result = plugin
            .load(RStr::from_str(path.as_ref().to_str().unwrap()))
            .unwrap();
        let block = result.blocks.first().unwrap();
        // data_to_element(block, dispatcher, cms)
        //     .map(|v| (Some(Box::new(result) as Box<dyn Any + Send + Sync>), v))
        None
    }

    fn open_file_only(path: impl AsRef<std::path::Path>) -> PluginResult {
        let plugin = PLUGIN_MANAGER.get_plugin_by_name("etws_loader").unwrap();
        let mut result = plugin
            .load(RStr::from_str(path.as_ref().to_str().unwrap()))
            .unwrap();
        return result;
    }
}