launcher: scheme autocomplete

1 files changed, 44 insertions, 0 deletions

diff --git a/src/services/schemes.ts b/src/services/schemes.ts
new file mode 100644
index 0000000..07d6ded
--- /dev/null
+++ b/src/services/schemes.ts
@@ -0,0 +1,44 @@
+import { execAsync, GLib, GObject, monitorFile, property, readFileAsync, register } from "astal";
+import type { IPalette } from "./palette";
+
+const DATA = `${GLib.get_user_data_dir()}/caelestia`;
+
+@register({ GTypeName: "Schemes" })
+export default class Schemes extends GObject.Object {
+    static instance: Schemes;
+    static get_default() {
+        if (!this.instance) this.instance = new Schemes();
+
+        return this.instance;
+    }
+
+    #map: { [k: string]: IPalette } = {};
+
+    @property(Object)
+    get map() {
+        return this.#map;
+    }
+
+    #schemePathToName(path: string) {
+        return path.slice(path.lastIndexOf("/") + 1, path.lastIndexOf("."));
+    }
+
+    async parseScheme(path: string) {
+        const schemeColours = (await readFileAsync(path)).split("\n").map(l => l.split(" "));
+        return schemeColours.reduce((acc, [name, hex]) => ({ ...acc, [name]: `#${hex}` }), {} as IPalette);
+    }
+
+    async update() {
+        const schemes = await execAsync(`find ${DATA}/scripts/data/schemes/ -type f`);
+        for (const scheme of schemes.split("\n"))
+            this.#map[this.#schemePathToName(scheme)] = await this.parseScheme(scheme);
+        this.notify("map");
+    }
+
+    constructor() {
+        super();
+
+        this.update().catch(console.error);
+        monitorFile(`${DATA}/scripts/data/schemes`, () => this.update().catch(console.error));
+    }
+}