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use chrono::{DateTime, TimeZone, Utc};
use time::{FrameRate, MediaTime};
use uuid::Uuid;
use crate::project::{
Background, CanvasSize, CanvasSizeMode, Project, ProjectMetadata, ProjectSettings,
};
use crate::scene::Scene;
use crate::track::{SceneTracks, Track};
pub const MAIN_TRACK_NAME: &str = "Main Track";
pub const CURRENT_PROJECT_VERSION: u32 = 32;
pub const DEFAULT_BACKGROUND_COLOR: &str = "#000000";
pub const DEFAULT_CANVAS_SIZE: CanvasSize = CanvasSize {
width: 1920,
height: 1080,
};
pub const DEFAULT_FPS: FrameRate = FrameRate {
numerator: 30,
denominator: 1,
};
pub fn generate_id() -> String {
Uuid::new_v4().to_string()
}
fn now_millis() -> DateTime<Utc> {
Utc.timestamp_millis_opt(Utc::now().timestamp_millis()).unwrap()
}
pub fn build_default_scene(name: impl Into<String>, is_main: bool) -> Scene {
let now = now_millis();
Scene {
id: generate_id(),
name: name.into(),
is_main,
tracks: SceneTracks {
overlay: Vec::new(),
main: Track::Video {
id: generate_id(),
name: MAIN_TRACK_NAME.to_string(),
elements: Vec::new(),
muted: false,
hidden: false,
},
audio: Vec::new(),
},
bookmarks: Vec::new(),
created_at: now,
updated_at: now,
}
}
pub fn new_project(name: impl Into<String>) -> Project {
let main_scene = build_default_scene("Main scene", true);
let now = now_millis();
Project {
metadata: ProjectMetadata {
id: generate_id(),
name: name.into(),
thumbnail: None,
duration: MediaTime::ZERO,
created_at: now,
updated_at: now,
},
current_scene_id: main_scene.id.clone(),
scenes: vec![main_scene],
settings: ProjectSettings {
fps: DEFAULT_FPS,
canvas_size: DEFAULT_CANVAS_SIZE,
canvas_size_mode: Some(CanvasSizeMode::Preset),
last_custom_canvas_size: None,
original_canvas_size: None,
background: Background::Color {
color: DEFAULT_BACKGROUND_COLOR.to_string(),
},
},
version: CURRENT_PROJECT_VERSION,
timeline_view_state: None,
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn new_project_matches_web_defaults() {
let project = new_project("Untitled Project");
assert_eq!(project.version, 32);
assert_eq!(project.scenes.len(), 1);
assert!(project.scenes[0].is_main);
assert_eq!(project.current_scene_id, project.scenes[0].id);
assert_eq!(project.settings.canvas_size.width, 1920);
assert_eq!(project.settings.fps.numerator, 30);
match &project.scenes[0].tracks.main {
Track::Video { name, .. } => assert_eq!(name, "Main Track"),
_ => panic!("main track must be video"),
}
match &project.settings.background {
Background::Color { color } => assert_eq!(color, "#000000"),
_ => panic!("default background must be color"),
}
}
#[test]
fn new_project_round_trips_through_json() {
let project = new_project("Test");
let json = serde_json::to_value(&project).unwrap();
let parsed: Project = serde_json::from_value(json).unwrap();
assert_eq!(parsed, project);
}
}
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