use hedgewars_engine_messages::messages::{

    ConfigEngineMessage::*, EngineMessage::*, KeystrokeAction::*, SyncedEngineMessage::*,

    UnorderedEngineMessage::*, UnsyncedEngineMessage::*, *,

};

use hedgewars_engine_messages::queue::*;

use integral_geometry::{Point, Rect, Size};

use std::path::Path;

use super::{ipc::*, world::World};

pub struct EngineInstance {

    pub world: World,

    pub ipc_channel: Channel,

    ipc_queue: MessagesQueue,

}

impl EngineInstance {

    pub fn new(data_path: &Path) -> Self {

        let mut world = World::new(data_path);

        fn template() -> OutlineTemplate {

            let mut template = OutlineTemplate::new(Size::new(4096 * 1, 2048 * 1));

            template.islands = vec![vec![

                Rect::from_size_coords(100, 2050, 1, 1),

                Rect::from_size_coords(100, 500, 400, 1200),

                Rect::from_size_coords(3600, 500, 400, 1200),

                Rect::from_size_coords(3900, 2050, 1, 1),

            ]];

            template.fill_points = vec![Point::new(1, 0)];

            template

        }

        world.init(template());

        Self {

            world,

            ipc_channel: Channel::new(),

            ipc_queue: MessagesQueue::new(QueueChatStrategy::LocalGame),

        }

    }

    pub fn render(&mut self) {

        self.world.render();

    }

    fn process_unordered_message(&mut self, message: &UnorderedEngineMessage) {

        match message {

            Pong => println!("Pong!"),

            _ => unimplemented!(),

        }

    }

    fn process_config_message(&mut self, message: &ConfigEngineMessage) {

        match message {

            SetSeed(seed) => self.world.set_seed(seed.as_bytes()),

            SetFeatureSize(feature_size) => self.world.set_feature_size(*feature_size),

            _ => unimplemented!(),

        }

    }

    pub fn process_ipc_queue(&mut self) {

        for message in self.ipc_channel.iter() {

            self.ipc_queue.push(message);

        }

        let messages: Vec<EngineMessage> = self.ipc_queue.iter(0).collect();

        for message in messages {

            println!("Processing message: {:?}", message);

            match message {

                Unknown => println!("Unknown message"),

                Empty => println!("Empty message"),

                Synced(_, _) => unimplemented!(),

                Unsynced(_) => unimplemented!(),

                Unordered(unordered_message) => self.process_unordered_message(&unordered_message),

                Config(config_message) => self.process_config_message(&config_message),

            }

        }

    }

}