#[macro_use]
extern crate rocket;
//use std::{thread, time::Duration, sync::Arc, io};
use ::std::sync::Arc;

mod animations;
mod configure;
mod render;
mod utils;
mod db;

use animations::Animation;
use r2d2::PooledConnection;
use utils::{ApiResponse, ApiResponseActiveList};

use rocket::{serde::json::{serde_json::json, self}, State};

use r2d2_sqlite::SqliteConnectionManager;

use crate::db::setup_database;

//use std::sync::atomic::AtomicBool;

use std::{
    error::Error,
    sync::{
        mpsc::{self, Receiver, Sender},
        Mutex,
    },
};

pub type DBPool = Arc<r2d2::Pool<r2d2_sqlite::SqliteConnectionManager>>;
pub type DBConn = PooledConnection<r2d2_sqlite::SqliteConnectionManager>;
pub type GResult = Result<(), Box<dyn Error>>;
pub type ASender<T> = Arc<Mutex<Sender<T>>>;
pub type AReceiver<T> = Arc<Mutex<Receiver<T>>>;

#[get("/")]
fn index() -> &'static str {
    "Hello World"
}

pub enum Action {
    Reload,
    Stop,
    Clear,
    GetActiveList,
}

pub enum RenderMessage {
    ActiveList(Vec<String>),
    // TODO remove none where other are added
    None
}

#[get("/quit")]
async fn quit(shutdown: rocket::Shutdown, action: &State<ASender<Action>>) -> String {
    println!("Got Shutdown");

    let send = action.lock().unwrap().send(Action::Stop);

    if send.is_err() || send.ok().is_none() {
        return json!(ApiResponse {
            code: 500,
            message: "Failed to stop".to_string()
        })
        .to_string();
    }

    shutdown.notify();

    json!(ApiResponse {
        code: 200,
        message: "Stoped".to_string()
    })
    .to_string()
}

#[get("/reload")]
async fn reload(action: &State<ASender<Action>>) -> String {
    println!("Got Shutdown");

    let send = action.lock().unwrap().send(Action::Reload);

    if send.is_err() || send.ok().is_none() {
        return json!(ApiResponse {
            code: 500,
            message: "Failed to reload".to_string()
        })
        .to_string();
    }

    json!(ApiResponse {
        code: 200,
        message: "Reloaded".to_string()
    })
    .to_string()
}

#[get("/active")]
async fn get_active(action: &State<ASender<Action>>, messages: &State<AReceiver<RenderMessage>>) -> String {
    println!("Getting active");

    let send = action.lock().unwrap().send(Action::GetActiveList);

    if send.is_err() || send.ok().is_none() {
        return json!(ApiResponse{
            code: 500,
            message: "Failed to get list".to_string()
        }).to_string();
    }

    let data = messages.lock().unwrap().recv();

    if data.is_err() || data.as_ref().ok().is_none() {
        return json!(ApiResponse {
            code: 500,
            message: "Failed to get list".to_string()
        }).to_string();
    }

    if let RenderMessage::ActiveList(list) = data.ok().unwrap() {
        return json!(ApiResponseActiveList {
            code: 200,
            active_animations: list
        }).to_string();
    }

    return json!(ApiResponse {
        code: 500,
        message: "Failed to get list".to_string()
    }).to_string();
    
}

fn ligth_controll(
    pool: DBPool,
    action: Receiver<Action>,
    start_ani: Receiver<Animation>,
    stop_ani: Receiver<String>,
    message_server: Sender<RenderMessage>,
) {
    println!("Data loop started");

    let render = render::Render::new(pool.clone());

    if render.is_err() || render.as_ref().ok().is_none() {
        println!("something every wrong {:?}", render.err());
        return;
    }

    let mut render = render.ok().unwrap();

    'mainloop: loop {
        let action = action.try_recv();

        if action.is_ok() {
            match action.ok().unwrap() {
                Action::Reload => {
                    let result = render.load_config();
                    if result.is_err() || result.as_ref().ok().is_none() {
                        println!("Ehh failed to load config i guess: {:?}", result.err());
                    }
                }
                Action::Clear => {
                    render.blank();
                }
                Action::Stop => {
                    render.blank();
                    render.im_render();
                    break 'mainloop;
                }
                Action::GetActiveList => {
                    if message_server.send(RenderMessage::ActiveList(render.get_active_animations())).is_err() {
                        println!("Failed to send message ups");
                    }
                }
            }
        }

        let ani = start_ani.try_recv();

        if ani.is_ok() {
            println!("Added animation");
            //TODO
            render.add_animation(ani.ok().unwrap());
            //ani.ok().unwrap().
        }

        let ani = stop_ani.try_recv();

        if ani.is_ok() {
            render.remove_animation(ani.ok().unwrap());
        }

        render.render();
    }

    println!("stoped main loop");
}


#[rocket::main]
async fn main() -> GResult {
    println!("Program start");

    println!("Try to connect db");
    let sqlite_conn_manager = SqliteConnectionManager::file("ligths.db");
    let conn_pool = r2d2::Pool::new(sqlite_conn_manager).expect("Failed to create pool");
    let conn_pool_arc = Arc::new(conn_pool);

    {
        let pool = conn_pool_arc.clone();
        let dd = setup_database(pool);
        println!("{:?}", dd);
        dd.ok().unwrap();
    }

    let (action_sender, action_receiver): (Sender<Action>, Receiver<Action>) = mpsc::channel();
    let (start_animation_sender, start_animation_receiver): (
        Sender<Animation>,
        Receiver<Animation>,
    ) = mpsc::channel();
    let (stop_animation_sender, stop_animation_receiver): (Sender<String>, Receiver<String>) =
        mpsc::channel();

    let (messager_sender, messager_revicer): (Sender<RenderMessage>, Receiver<RenderMessage>) =
        mpsc::channel();                                           

    let pool_clone = conn_pool_arc.clone();

    let ligths_controll = std::thread::spawn(move || {
        ligth_controll(
            pool_clone,
            action_receiver,
            start_animation_receiver,
            stop_animation_receiver,
            messager_sender
        );
    });

    let cfg = rocket::Config::figment()
        .merge(("port", 3000))
        .merge(("address", "0.0.0.0"));

    let _rocket = rocket::custom(cfg)
        .mount(
            "/",
            routes![
                index,
                quit,
                reload,
                configure::configure,
                animations::animation,
                animations::start_animation,
                animations::stop_animation,
                animations::clear,
                animations::delete,
                animations::clear_all,
            ],
        )
        .manage(conn_pool_arc.clone())
        .manage(Arc::new(Mutex::new(action_sender)))
        .manage(Arc::new(Mutex::new(start_animation_sender)))
        .manage(Arc::new(Mutex::new(stop_animation_sender)))
        .manage(Arc::new(Mutex::new(messager_revicer)))
        .launch()
        .await?;
    ligths_controll.join().unwrap();

    Ok(())
}