@jsscripting-globals.js

(function (global) {
    'use strict';

    const System = Java.type('java.lang.System');
    const log = Java.type("org.slf4j.LoggerFactory").getLogger("org.openhab.automation.script");
    const ScriptExecution = Java.type('org.openhab.core.model.script.actions.ScriptExecution');
    const ZonedDateTime = Java.type('java.time.ZonedDateTime');

    const formatRegExp = /%[sdj%]/g;

    function stringify(value) {
        try {
            if (Java.isJavaObject(value)) {
                return value.toString();
            } else {
                // special cases
                if (value === undefined) {
                    return "undefined"
                }
                if (typeof value === 'function') {
                    return "[Function]"
                }
                if (value instanceof RegExp) {
                    return value.toString();
                }
                // fallback to JSON
                return JSON.stringify(value, null, 2);
            }
        } catch (e) {
            return '[Circular: ' + e + ']';
        }
    }

    function format(f) {
        if (typeof f !== 'string') {
            var objects = [];
            for (var index = 0; index < arguments.length; index++) {
                objects.push(stringify(arguments[index]));
            }
            return objects.join(' ');
        }

        if (arguments.length === 1) return f;

        var i = 1;
        var args = arguments;
        var len = args.length;
        var str = String(f).replace(formatRegExp, function (x) {
            if (x === '%%') return '%';
            if (i >= len) return x;
            switch (x) {
                case '%s': return String(args[i++]);
                case '%d': return Number(args[i++]);
                case '%j':
                    try {
                        return stringify(args[i++]);
                    } catch (_) {
                        return '[Circular]';
                    }
                // falls through
                default:
                    return x;
            }
        });
        for (var x = args[i]; i < len; x = args[++i]) {
            if (x === null || (typeof x !== 'object' && typeof x !== 'symbol')) {
                str += ' ' + x;
            } else {
                str += ' ' + stringify(x);
            }
        }
        return str;
    }

    const counters = {};
    const timers = {};

    const console = {
        'assert': function (expression, message) {
            if (!expression) {
                log.error(message);
            }
        },

        count: function (label) {
            let counter;

            if (label) {
                if (counters.hasOwnProperty(label)) {
                    counter = counters[label];
                } else {
                    counter = 0;
                }

                // update
                counters[label] = ++counter;
                log.debug(format.apply(null, [label + ':', counter]));
            }
        },

        debug: function () {
            log.debug(format.apply(null, arguments));
        },

        info: function () {
            log.info(format.apply(null, arguments));
        },

        log: function () {
            log.info(format.apply(null, arguments));
        },

        warn: function () {
            log.warn(format.apply(null, arguments));
        },

        error: function () {
            log.error(format.apply(null, arguments));
        },

        trace: function (e) {
            if (Java.isJavaObject(e)) {
                log.trace(e.getLocalizedMessage(), e);
            } else {
                if (e.stack) {
                    log.trace(e.stack);
                } else {
                    if (e.message) {
                        log.trace(format.apply(null, [(e.name || 'Error') + ':', e.message]));
                    } else {
                        log.trace((e.name || 'Error'));
                    }
                }
            }
        },

        time: function (label) {
            if (label) {
                timers[label] = System.currentTimeMillis();
            }
        },
        timeEnd: function (label) {
            if (label) {
                const now = System.currentTimeMillis();
                if (timers.hasOwnProperty(label)) {
                    log.info(format.apply(null, [label + ':', (now - timers[label]) + 'ms']));
                    delete timers[label];
                } else {
                    log.info(format.apply(null, [label + ':', '<no timer>']));
                }
            }
        }
    };

    function setTimeout(cb, delay) {
        const args = Array.prototype.slice.call(arguments, 2);
        return ScriptExecution.createTimerWithArgument(
            ZonedDateTime.now().plusNanos(delay * 1000000),
            args,
            function (args) {
                cb.apply(global, args);
            }
        );
    }

    function clearTimeout(timer) {
        if (timer !== undefined && timer.isActive()) {
            timer.cancel();
        }
    }

    function setInterval(cb, delay) {
        const args = Array.prototype.slice.call(arguments, 2);
        const delayNanos = delay * 1000000
        let timer = ScriptExecution.createTimerWithArgument(
            ZonedDateTime.now().plusNanos(delayNanos),
            args,
            function (args) {
                cb.apply(global, args);
                if (!timer.isCancelled()) {
                    timer.reschedule(ZonedDateTime.now().plusNanos(delayNanos));
                }
            }
        );
        return timer;
    }

    function clearInterval(timer) {
        clearTimeout(timer);
    }

    //Polyfil common functions onto the global object
    globalThis.console = console;
    globalThis.setTimeout = setTimeout;
    globalThis.clearTimeout = clearTimeout;
    globalThis.setInterval = setInterval;
    globalThis.clearInterval = clearInterval;

    //Support legacy NodeJS libraries 
    globalThis.global = globalThis;
    globalThis.process = { env: { NODE_ENV: '' } };

})(this);