screen-setup/dist/core.js

Setup screens position from saved profiles

import { array, int, object, optional, string } from 'cast.ts';
import { execSync } from 'child_process';
import { getLocalStorage } from '@beenotung/tslib/store.js';
import { storageDir } from './config.js';
import { compare } from '@beenotung/tslib/compare.js';
let screenParser = object({
    name: string({ nonEmpty: true }),
    w: int(),
    h: int(),
    x: int(),
    y: int(),
});
let configParser = object({
    profile_name: string({ nonEmpty: true }),
    screens: array(screenParser),
    last_applied: optional(int()),
});
let configsParser = array(configParser);
export function getCurrentConfig() {
    let screens = [];
    let text = execSync('xrandr').toString();
    let matches = text.matchAll(/\w+ connected (primary )?([\dx+]+)/g);
    for (let match of matches) {
        let name = match[0].match(/\w+/)?.[0];
        let [_, w, h, x, y] = match[0].match(/(\d+)x(\d+)\+(\d+)\+(\d+)/) || [];
        let screen = screenParser.parse({ name, w, h, x, y });
        screens.push(screen);
    }
    return { profile_name: 'current', screens };
}
let storage = getLocalStorage(storageDir);
export function loadConfigs() {
    try {
        let configs = configsParser.parse(JSON.parse(storage.getItem('configs') || ''));
        return configs.sort((a, b) => compare(b.last_applied || 0, a.last_applied || 0) ||
            compare(a.profile_name, b.profile_name));
    }
    catch (error) {
        return [];
    }
}
export function saveConfigs(configs) {
    let text = JSON.stringify(configsParser.parse(configs), null, 2);
    storage.setItem('configs', text);
}
export function applyConfig(config) {
    config = configParser.parse(config);
    config.screens.forEach(({ name, w, h, x, y }) => {
        execSync(`xrandr --output ${name} --mode ${w}x${h} --pos ${x}x${y}`);
    });
    // update last_applied
    config.last_applied = Date.now();
    let configs = loadConfigs();
    let index = configs.findIndex(c => c.profile_name == config.profile_name);
    if (index == -1) {
        configs.push(config);
    }
    else {
        configs[index] = config;
    }
    saveConfigs(configs);
}