pub mod client;
pub mod helper;
pub mod views;

use crate::client::Client;
use eframe::CreationContext;
use egui::CentralPanel;
use karlcommon::{socket_path, ClientboundPacket, ServerboundPacket, Task};
use log::{error, info};
use std::{os::unix::net::UnixStream, process::exit};
use views::{calendar::Calendar, edit::ShowAndEdit};

fn main() {
    env_logger::init();
    eframe::run_native(
        "karlender",
        eframe::NativeOptions::default(),
        Box::new(move |cc| Box::new(App::new(cc))),
    )
}

pub struct Globals {
    client: Client,
    tasks: Vec<Task>,
}

struct App {
    g: Globals,

    current_tab: Tab,

    show_and_edit: ShowAndEdit,
    calendar: Calendar,
}

#[derive(PartialEq)]
enum Tab {
    ShowAndEdit,
    CalendarWeek,
}

impl App {
    pub fn new(cc: &CreationContext) -> Self {
        cc.egui_ctx.set_visuals(egui::Visuals::dark());

        let socket = match UnixStream::connect(socket_path()) {
            Ok(s) => s,
            Err(e) => {
                error!("failed to connect to socket: {}", e);
                exit(1)
            }
        };

        let mut client = Client::new(socket);
        info!("connected");

        client.send(ServerboundPacket::ListTasks);
        App {
            current_tab: Tab::ShowAndEdit,
            g: Globals {
                client,
                tasks: vec![],
            },
            show_and_edit: Default::default(),
            calendar: Default::default(),
        }
    }

    pub fn update_network(&mut self) {
        for p in self.g.client.receiver.try_iter() {
            match p {
                ClientboundPacket::TaskList(t) => self.g.tasks = t,
                ClientboundPacket::Sync => {
                    self.g.client.busy = false;
                }
                _ => {}
            }
        }
    }
}

impl eframe::App for App {
    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
        self.update_network();
        CentralPanel::default().show(ctx, |ui| {
            ui.add_enabled_ui(!self.g.client.busy, |ui| {
                ui.horizontal(|ui| {
                    ui.selectable_value(&mut self.current_tab, Tab::ShowAndEdit, "Tasks");
                    ui.selectable_value(&mut self.current_tab, Tab::CalendarWeek, "Calendar: Week");
                });
                ui.separator();
                match self.current_tab {
                    Tab::ShowAndEdit => self.show_and_edit.ui(ui, &mut self.g),
                    Tab::CalendarWeek => self.calendar.ui(ui, &mut self.g),
                }
            });
        });
    }
}