use super::*;

impl ConfigProxyHandler {
    pub(super) fn tl_to_window(&self, tl: &dyn ToplevelNode) -> Window {
        self.tl_id_to_window(tl.tl_data().identifier.get())
    }

    pub(super) fn tl_id_to_window(&self, tl: ToplevelIdentifier) -> Window {
        if let Some(win) = self.windows_from_tl_id.get(&tl) {
            return win;
        }
        let id = Window(self.window_ids.fetch_add(1));
        self.windows_from_tl_id.set(tl, id);
        self.windows_to_tl_id.set(id, tl);
        id
    }

    pub(super) fn get_window(&self, window: Window) -> Result<Rc<dyn ToplevelNode>, CphError> {
        self.windows_to_tl_id
            .get(&window)
            .and_then(|id| self.state.toplevels.get(&id))
            .and_then(|tl| tl.upgrade())
            .ok_or(CphError::WindowDoesNotExist(window))
    }
    pub(super) fn get_client(&self, client: ConfigClient) -> Result<Rc<Client>, CphError> {
        self.state
            .clients
            .get(ClientId::from_raw(client.0))
            .ok()
            .ok_or(CphError::ClientDoesNotExist(client))
    }

    pub(super) fn handle_get_clients(&self) {
        let mut clients = vec![];
        for client in self.state.clients.clients.borrow().values() {
            clients.push(ConfigClient(client.data.id.raw()));
        }
        self.respond(Response::GetClients { clients });
    }

    pub(super) fn handle_client_exists(&self, client: ConfigClient) {
        self.respond(Response::ClientExists {
            exists: self.get_client(client).is_ok(),
        });
    }

    pub(super) fn handle_client_is_xwayland(&self, client: ConfigClient) -> Result<(), CphError> {
        self.respond(Response::ClientIsXwayland {
            is_xwayland: self.get_client(client)?.is_xwayland,
        });
        Ok(())
    }

    pub(super) fn handle_client_kill(&self, client: ConfigClient) {
        self.state.clients.kill(ClientId::from_raw(client.0));
    }

    pub(super) fn handle_get_workspace_window(&self, ws: Workspace) -> Result<(), CphError> {
        let window = self
            .get_existing_workspace(ws)?
            .and_then(|ws| ws.container.get())
            .map(|c| self.tl_to_window(&*c))
            .unwrap_or(Window(0));
        self.respond(Response::GetWorkspaceWindow { window });
        Ok(())
    }

    pub(super) fn handle_get_seat_keyboard_window(&self, seat: Seat) -> Result<(), CphError> {
        let window = self
            .get_seat(seat)?
            .get_keyboard_node()
            .node_toplevel()
            .map(|tl| self.tl_to_window(&*tl))
            .unwrap_or(Window(0));
        self.respond(Response::GetSeatKeyboardWindow { window });
        Ok(())
    }

    pub(super) fn handle_seat_focus_window(&self, seat: Seat, window_id: Window) -> Result<(), CphError> {
        let seat = self.get_seat(seat)?;
        let window = self.get_window(window_id)?;
        if !window.node_visible() {
            return Err(CphError::WindowNotVisible(window_id));
        }
        seat.focus_toplevel(window);
        seat.maybe_schedule_warp_mouse_to_focus();
        Ok(())
    }

    pub(super) fn handle_get_window_title(&self, window: Window) -> Result<(), CphError> {
        let title = self.get_window(window)?.tl_data().title.borrow().clone();
        self.respond(Response::GetWindowTitle { title });
        Ok(())
    }

    pub(super) fn handle_get_window_type(&self, window: Window) -> Result<(), CphError> {
        let kind = self.get_window(window)?.tl_data().kind.to_window_type();
        self.respond(Response::GetWindowType { kind });
        Ok(())
    }

    pub(super) fn handle_get_content_type(&self, window: Window) -> Result<(), CphError> {
        let kind = self
            .get_window(window)?
            .tl_data()
            .content_type
            .get()
            .to_config();
        self.respond(Response::GetContentType { kind });
        Ok(())
    }

    pub(super) fn handle_window_resize(
        &self,
        window: Window,
        dx1: i32,
        dy1: i32,
        dx2: i32,
        dy2: i32,
    ) -> Result<(), CphError> {
        self.state.with_layout_animations(|| {
            self.get_window(window)?.tl_resize(dx1, dy1, dx2, dy2);
            Ok(())
        })
    }

    pub(super) fn handle_window_exists(&self, window: Window) {
        self.respond(Response::WindowExists {
            exists: self.get_window(window).is_ok(),
        });
    }

    pub(super) fn handle_get_window_id(&self, window: Window) -> Result<(), CphError> {
        let id = self
            .get_window(window)?
            .tl_data()
            .identifier
            .get()
            .to_string();
        self.respond(Response::GetWindowId { id: id.to_string() });
        Ok(())
    }

    pub(super) fn handle_get_window_is_visible(&self, window: Window) -> Result<(), CphError> {
        let window = self.get_window(window)?;
        self.respond(Response::GetWindowIsVisible {
            visible: window.node_visible(),
        });
        Ok(())
    }

    pub(super) fn handle_get_window_client(&self, window: Window) -> Result<(), CphError> {
        let window = self.get_window(window)?;
        self.respond(Response::GetWindowClient {
            client: window
                .tl_data()
                .client
                .as_ref()
                .map(|c| ConfigClient(c.id.raw()))
                .unwrap_or(ConfigClient(0)),
        });
        Ok(())
    }

    pub(super) fn handle_get_window_parent(&self, window: Window) -> Result<(), CphError> {
        let window = self
            .get_window(window)?
            .tl_data()
            .parent
            .get()
            .and_then(|tl| tl.node_into_toplevel())
            .map(|tl| self.tl_to_window(&*tl))
            .unwrap_or(Window(0));
        self.respond(Response::GetWindowParent { window });
        Ok(())
    }

    pub(super) fn handle_get_window_workspace(&self, window: Window) -> Result<(), CphError> {
        let workspace = self
            .get_window(window)?
            .tl_data()
            .workspace
            .get()
            .map(|ws| self.get_workspace_by_name(&ws.name))
            .unwrap_or(Workspace(0));
        self.respond(Response::GetWindowWorkspace { workspace });
        Ok(())
    }

    pub(super) fn handle_get_window_children(&self, window: Window) -> Result<(), CphError> {
        let mut windows = vec![];
        if let Some(c) = self.get_window(window)?.node_into_container() {
            for c in c.children.iter() {
                windows.push(self.tl_to_window(&*c.node));
            }
        }
        self.respond(Response::GetWindowChildren { windows });
        Ok(())
    }
}