main_window.slint

import { VirtualKeyboardHandler, VirtualKeyboard, KeyModel } from "virtual_keyboard.slint";
import { AutocompleteHandler } from "autocomplete_line_edit.slint";
import { ConfettiOverlay } from "confetti.slint";

import { Main } from "pages/main.slint";
import { Donate } from "pages/donate.slint";
import { InsertMoney } from "pages/insert_money.slint";
import { HomeAssistant } from "pages/home_assistant.slint";

export { VirtualKeyboardHandler, KeyModel, AutocompleteHandler }

enum Page {
    Main,
    Donate,
    InsertMoney,
    HomeAssistant,
    Top,
    Games
}

export component MainWindow inherits Window {
    property <Page> current-page: Page.Main;
    in-out property <int> session-amount: 0;
    in-out property <string> session-username: "";
    in-out property <int> session-fund-id: 0;
    in-out property <string> session-fund-name: "";

    // data storage
    in-out property <[string]> available-funds: [];
    in-out property <[int]> available-fund-ids: [];
    in-out property <[string]> usernames: [];

    // confetti state
    in-out property <bool> show-confetti: false;
    in-out property <bool> confetti-falling: false;

    // toast state — set by Rust when a bill or coin is accepted
    in-out property <int> last-added-amount: 0;

    // callbacks for rust to hook into
    callback done-clicked(string, int, int);  // username, fund_id, amount
    callback start-accepting-money();
    callback stop-accepting-money();
    callback show-home-assistant();
    callback hide-home-assistant();
    callback fetch-funds();  // fetches available-funds and available-fund-ids
    callback fetch-usernames();  // fetches available-usernames for autocomplete
    callback confetti-started();  // tells rust to start confetti dismiss timer

    /// Called from Rust when HASS sends a POST /close-hass request.
    public function close-hass-remote() {
        root.hide-home-assistant();
        root.current-page = Page.Main;
    }

    title: "Donation Machine";
    width: 1280px;
    height: 1024px;

    Rectangle {
        if current-page == Page.Main: Main {
            donate-clicked => {
                root.current-page = Page.Donate;
            }

            home-assistant-clicked => {
                root.show-home-assistant();
                root.current-page = Page.HomeAssistant;
            }
        }
        if current-page == Page.Donate: Donate {
            fund-items: root.available-funds;
            fund-ids: root.available-fund-ids;
            username-suggestions: root.usernames;

            fetch-funds => {
                root.fetch-funds();
            }

            fetch-usernames => {
                root.fetch-usernames();
            }

            back-clicked => {
                VirtualKeyboardHandler.open = false;
                root.current-page = Page.Main;
            }

            next-clicked(username, fund-id) => {
                debug("proceed with username:", username, "fund:", fund-id);
                VirtualKeyboardHandler.open = false;
                root.session-username = username;
                root.session-fund-id = fund-id;
                root.session-fund-name = self.selected-fund-index >= 0 ? self.fund-items[self.selected-fund-index] : "";
                root.session-amount = 0;  // reset session amount
                root.start-accepting-money();  // enable bill acceptor
                root.current-page = Page.InsertMoney;
            }
        }
        if current-page == Page.InsertMoney: InsertMoney {
            current-amount: root.session-amount;
            username: root.session-username;
            fundname: root.session-fund-name;
            last-added-amount <=> root.last-added-amount;

            cancel-clicked => {
                root.stop-accepting-money();  // disable bill acceptor
                root.session-amount = 0;
                root.session-username = "";
                root.current-page = Page.Donate;
            }

            done-clicked(username, amount) => {
                debug("done with username:", username, "amount:", amount, "fund:", root.session-fund-id);
                root.stop-accepting-money();  // disable bill acceptor
                // call the root callback so rust can handle the donation
                root.done-clicked(username, root.session-fund-id, amount);
                root.session-amount = 0;
                root.session-username = "";
                root.session-fund-id = 0;
                root.current-page = Page.Main;
                root.show-confetti = true;
                root.confetti-started();
            }
        }
        if current-page == Page.HomeAssistant: HomeAssistant {
            back-clicked => {
                root.hide-home-assistant();
                root.current-page = Page.Main;
            }
        }

        // Confetti overlay — rendered on top of all pages
        if root.show-confetti: ConfettiOverlay {
            falling: root.confetti-falling;
        }
    }
}