Community links: Help menu (Discord, ArtCraft website, app page, GitHub), Discord button in the header, links on the About and Home screens; engine help.* commands return the URLs (menu clicks open them via the host's browser service)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/engine/src/cmd/help.rs

@@ -0,0 +1,51 @@
+//! Help → community and project links (the ArtCraft Discord, website, this app's page and its
+//! GitHub repository). The commands return the URL; the frontend opens it.
+
+use serde_json::{Value, json};
+
+use super::*;
+
+/// The app's id on getartcraft.com and GitHub.
+pub const APP_ID: &str = "vectorcraft";
+pub const DISCORD_URL: &str = "https://discord.gg/artcraft";
+pub const WEBSITE_URL: &str = "https://getartcraft.com";
+
+/// This app's page on the website.
+pub fn app_page_url() -> String {
+    format!("{WEBSITE_URL}/apps/{APP_ID}")
+}
+
+/// This app's source repository.
+pub fn github_url() -> String {
+    format!("https://github.com/storytold/{APP_ID}")
+}
+
+pub fn specs() -> Vec<CommandSpec> {
+    vec![
+        cmd!(query "help.discord", "Join Our Discord", ["Help"], None, "{} → {url} the ArtCraft community Discord", always, |_, _| url(DISCORD_URL.into())),
+        cmd!(query "help.website", "ArtCraft Website", ["Help"], None, "{} → {url}", always, |_, _| url(WEBSITE_URL.into())),
+        cmd!(query "help.appPage", "VectorCraft on getartcraft.com", ["Help"], None, "{} → {url} this app's page", always, |_, _| url(app_page_url())),
+        cmd!(query "help.github", "VectorCraft on GitHub", ["Help"], None, "{} → {url} source code, issues and releases", always, |_, _| url(github_url())),
+        cmd!(query "help.links", "Links", [], None, "{} → {discord, website, appPage, github}", always, |_, _| {
+            Ok(json!({ "discord": DISCORD_URL, "website": WEBSITE_URL, "appPage": app_page_url(), "github": github_url() }))
+        }),
+    ]
+}
+
+fn url(u: String) -> Result<Value> {
+    Ok(json!({ "url": u }))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn links() {
+        let mut s = Session::new();
+        assert_eq!(s.execute("help.discord", &json!({})).unwrap()["url"], "https://discord.gg/artcraft");
+        assert_eq!(s.execute("help.appPage", &json!({})).unwrap()["url"], "https://getartcraft.com/apps/vectorcraft");
+        assert_eq!(s.execute("help.github", &json!({})).unwrap()["url"], "https://github.com/storytold/vectorcraft");
+        assert_eq!(s.execute("help.links", &json!({})).unwrap()["website"], "https://getartcraft.com");
+    }
+}

crates/engine/src/cmd/mod.rs

@@ -14,6 +14,7 @@ mod edit;
 mod effectcmd;
 mod file;
 mod fonts;
+pub mod help;
 mod layer;
 mod live;
 pub(crate) mod menucmds;
@@ -156,6 +157,7 @@ pub fn command_specs() -> &'static [CommandSpec] {
         v.extend(textedit::specs());
         v.extend(textstyles::specs());
         v.extend(fonts::specs());
+        v.extend(help::specs());
         v.extend(threads::specs());
         v.extend(docmenu::specs());
         v.extend(docinfo::specs());