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path: root/schist_desktop_gui/src/gui.rs
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pub mod components;
pub mod screens;

use iced::Element;
use schist_models::{account::Account, bucket::Bucket};

use crate::{
    config::Config,
    dummy_data::{self, fetch_accounts, fetch_buckets},
    gui::screens::{main_screen, MainScreen, Screen},
    shortcut::KeyBind,
    traits::{Component, Viewable},
};

#[derive(Clone, Debug)]
pub enum Message {
    Event(iced::Event),
    MainScreenMessage(main_screen::Message),
    RefetchedAccounts(Result<Vec<Account>, dummy_data::Error>),
    RefetchedBuckets(Result<Vec<Bucket>, dummy_data::Error>),
}

pub struct Gui {
    active_screen: Screen,
    buckets: Vec<Bucket>,
    main_screen: MainScreen,
    config: Config,
}

impl Gui {
    pub fn new() -> (Self, iced::Task<Message>) {
        let tasks = vec![
            iced::Task::perform(fetch_buckets(), Message::RefetchedBuckets),
            iced::Task::perform(fetch_accounts(), Message::RefetchedAccounts),
        ];
        let buckets = Vec::new();
        let accounts = Vec::new();
        let gui = Self {
            active_screen: Screen::Main,
            buckets: buckets.clone(),
            main_screen: MainScreen::new(buckets, accounts),
            config: Config::default(),
        };
        (gui, iced::Task::batch(tasks))
    }
}

impl Gui {
    pub fn view(&self) -> Element<Message> {
        match self.active_screen {
            Screen::Main => self.main_screen.view().map(Message::MainScreenMessage),
        }
    }

    pub fn update(&mut self, message: Message) -> iced::Task<Message> {
        match message {
            Message::Event(iced::Event::Keyboard(iced::keyboard::Event::KeyPressed {
                key,
                modifiers,
                ..
            })) => {
                let key_bind = KeyBind::from((key.clone(), modifiers));
                if let Some(command) = self
                    .config
                    .keyboard
                    .shortcuts()
                    .iter()
                    .find_map(|shortcut| shortcut.execute(&key_bind))
                {
                    match command {
                        crate::shortcut::Command::GotoNextView => {
                            self.main_screen.update(main_screen::Message::SelectView(
                                self.main_screen.active_view.next(),
                            ));
                            iced::Task::none()
                        }
                        crate::shortcut::Command::GotoPrevView => {
                            self.main_screen.update(main_screen::Message::SelectView(
                                self.main_screen.active_view.prev(),
                            ));
                            iced::Task::none()
                        }
                        crate::shortcut::Command::GotoView(view) => {
                            self.main_screen
                                .update(main_screen::Message::SelectView(view));
                            iced::Task::none()
                        }
                        crate::shortcut::Command::GotoNextItem => {
                            self.main_screen.update(main_screen::Message::NextItem);
                            iced::Task::none()
                        }
                        crate::shortcut::Command::GotoPrevItem => {
                            self.main_screen.update(main_screen::Message::PrevItem);
                            iced::Task::none()
                        }
                    }
                } else {
                    iced::Task::none()
                }
            }
            Message::Event(_) => iced::Task::none(),
            Message::MainScreenMessage(message) => match self.main_screen.update(message) {
                main_screen::Action::None => iced::Task::none(),
            },
            Message::RefetchedBuckets(buckets) => {
                match buckets {
                    Ok(buckets) => {
                        self.buckets = buckets.clone();
                        self.main_screen
                            .update(main_screen::Message::SetBuckets(buckets));
                    }
                    Err(err) => println!("Failed to get buckets: {:?}", err),
                };
                iced::Task::none()
            }
            Message::RefetchedAccounts(accounts) => {
                match accounts {
                    Ok(accounts) => {
                        self.main_screen
                            .update(main_screen::Message::SetAccounts(accounts));
                    }
                    Err(err) => println!("Failed to get accounts: {:?}", err),
                }
                iced::Task::none()
            }
        }
    }
}

pub fn subscription(_state: &Gui) -> iced::Subscription<Message> {
    iced::event::listen().map(Message::Event)
}