//  Stiletto
//  Copyright (C) 2020 Stiletto Authors
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU Affero General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU Affero General Public License for more details.
//
//  You should have received a copy of the GNU Affero General Public License
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.

use serde::{Deserialize, Serialize};
use std::vec::Vec;

pub mod canvas;
pub mod history;
pub mod tool;
pub mod widget;
pub mod migration;

pub mod commands {
    use druid::Selector;

    pub const UPDATE_TOOL: Selector = Selector::new("stiletto_update_tool");
    pub const PUSH_ERASER: Selector<()> = Selector::new("push_eraser_context");
    pub const POP_ERASER: Selector<()> = Selector::new("pop_eraser_context");
}

pub const STILETTO_FORMAT_MAJOR: u16 = 0;
pub const STILETTO_FORMAT_MINOR: u16 = 1;

#[derive(Serialize, Deserialize, Debug)]
pub struct DocumentSnapshot {
    pub format_version_major: u16,
    pub format_version_minor: u16,
    pub canvas_elements: Vec<canvas::CanvasElement>,
}

impl DocumentSnapshot {
    pub fn to_writer<W: std::io::Write>(&self, writer: W) -> Result<(), serde_json::Error> {
        serde_json::to_writer_pretty(writer, &self)
    }
}