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import { GLib, monitorFile, readFileAsync, Variable, writeFileAsync } from "astal";
import config from ".";
import { loadStyleAsync } from "../../app";
import defaults from "./defaults";
import types from "./types";
type Settings<T> = { [P in keyof T]: T[P] extends object & { length?: never } ? Settings<T[P]> : Variable<T[P]> };
const CONFIG = `${GLib.get_user_config_dir()}/caelestia/shell.json`;
const isObject = (o: any): o is object => typeof o === "object" && o !== null && !Array.isArray(o);
const isCorrectType = (v: any, type: string | string[] | number[], path: string) => {
if (Array.isArray(type)) {
// type is array of valid values
if (!type.includes(v as never)) {
console.warn(`Invalid value for ${path}: ${v} != ${type.map(v => `"${v}"`).join(" | ")}`);
return false;
}
} else if (type.startsWith("array of ")) {
// Array of ...
if (Array.isArray(v)) {
// Remove invalid items but always return true
const arrType = type.slice(9);
try {
// Recursively check type
const type = JSON.parse(arrType);
const valid = v.filter((item, i) =>
Object.entries(type).some(([k, t]) => {
if (!item[k]) {
console.warn(`Invalid shape for ${path}[${i}]: ${JSON.stringify(item)} != ${arrType}`);
return false;
}
return !isCorrectType(item[k], t as any, `${path}[${i}].${k}`);
})
);
v.splice(0, v.length, ...valid); // In-place filter
} catch {
const valid = v.filter((item, i) => {
if (typeof item !== arrType) {
console.warn(`Invalid type for ${path}[${i}]: ${typeof item} != ${arrType}`);
return false;
}
return true;
});
v.splice(0, v.length, ...valid); // In-place filter
}
} else {
// Type is array but value is not
console.warn(`Invalid type for ${path}: ${typeof v} != ${type}`);
return false;
}
} else if (typeof v !== type) {
// Value is not correct type
console.warn(`Invalid type for ${path}: ${typeof v} != ${type}`);
return false;
}
return true;
};
const deepMerge = <T extends object, U extends object>(a: T, b: U, path = ""): T & U => {
const merged: { [k: string]: any } = { ...b };
for (const [k, v] of Object.entries(a)) {
if (b.hasOwnProperty(k)) {
const bv = b[k as keyof U];
if (isObject(v) && isObject(bv)) merged[k] = deepMerge(v, bv, `${path}${k}.`);
else if (!isCorrectType(bv, types[path + k], path + k)) merged[k] = v;
} else merged[k] = v;
}
return merged as any;
};
export const convertSettings = <T extends object>(obj: T): Settings<T> =>
Object.fromEntries(Object.entries(obj).map(([k, v]) => [k, isObject(v) ? convertSettings(v) : Variable(v)])) as any;
const updateSection = (from: { [k: string]: any }, to: { [k: string]: any }, path = "") => {
for (const [k, v] of Object.entries(from)) {
if (to.hasOwnProperty(k)) {
if (isObject(v)) updateSection(v, to[k], `${path}${k}.`);
else to[k].set(v);
} else console.warn(`Unknown config key: ${path}${k}`);
}
};
export const updateConfig = async () => {
updateSection(deepMerge(defaults, JSON.parse(await readFileAsync(CONFIG))), config);
loadStyleAsync().catch(console.error);
};
export const initConfig = () => {
monitorFile(CONFIG, () => updateConfig().catch(e => console.warn(`Invalid config: ${e}`)));
updateConfig().catch(e => console.warn(`Invalid config: ${e}`));
};
export const setConfig = async (path: string, value: any) => {
const conf = JSON.parse(await readFileAsync(CONFIG));
let obj = conf;
for (const p of path.split(".").slice(0, -1)) obj = obj[p];
obj[path.split(".").at(-1)!] = value;
await writeFileAsync(CONFIG, JSON.stringify(conf, null, 4));
};
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