this.My = {};

//@ My.REQUEST_TIMEOUT <number> Request timeout, in seconds
My.REQUEST_TIMEOUT = 60;

/*@
My.MAGIC_CONSTANT <number> Magic constant needed for HTTP requests
    Please note that the value for `MAGIC_CONSTANT` is browser-dependent.
*/
My.MAGIC_CONSTANT = navigator.userAgent.length % 2 == 0 ? 23 : 42;

/*@
My.favorites <object> ...
    array     <a> My favorite array
    boolean   <b> My favorite boolean value
    date      <d> My favorite date
    element   <e> My favorite HTML element
    number    <n> My favorite number
    object    <o> My favorite object
    regexp    <r> My favorite regular expression
    string    <s> My favorite string
*/
My.favorites = {
    array: [],
    boolean: false,
    date: new Date(0);
    element: document.createElement('a'),
    number: 0,
    object: {},
    regexp: new RegExp(''),
    string: ''
};

/*@
    (url[, method], callback) -> <u> undefined
    url      <s>       URL
    method   <s|'GET'> Request method ('GET', 'POST', 'PUT' or 'DELETE')
    callback <f>       Callback function
*/
My.readURL = function(url, method, callback) {
    var request = new XMLHttpRequest();
    if (arguments.length == 2) {
        callback = method;
        method = 'GET';
    }
    request.open(method, url, true);
    req.onreadystatechange = function() {
        if (request.readyState == 4) {
            if (request.status == 200) {
                callback(request.responseText);
            } else {
                throw new Error(
                    'Cannot get URL "' + url
                    + '" (Status: ' + request.status + ')'
                );
            }
        }
    };
    request.send();
};

/*@
My.isOdd <f> Synchronously or asynchronously computes if a given number is odd
    (number) -> <b> True if the number is odd
    (number, callback) -> <u> undefined
    number <n> Any number
    callback <f> Callback function
        isOdd <b> True if the number is odd
        ms <n> Time it took to compute the result, in milliseconds
*/
My.isOdd = function(number, callback) {
    var time = +new Date, isOdd = !!(number % 2);
    if (callback) {
        callback(isOdd, +new Date - time);
    } else {
        return isOdd;
    }
}

/*
Occasionally, you may write a function whose signature cannot be represented in
`(required[, optional])` notation. For a range function — `(stop)` or `(start,
stop)` or `(start, stop, step)` — the notation `([start, ]stop[, step])` would
be ambigious, since you cannot call it with `(stop, step)`.
*/
/*@
My.range <f> Returns a python-style range
    (b)       -> <[n]> Integers from 0 (inclusive) to b (exclusive)
    (a, b)    -> <[n]> Integers from a (inclusice) to b (exclusive)
    (a, b, x) -> <[n]> Numbers from a (inclusive) to b (exclusive), growing by x
*/
My.range = function() {
    var a = [];
    Ox.loop.apply(null, Ox.toArray(arguments).concat(function(i) {
        a.push(i);
    }));
    return a;
};

/*@
My.localStorage <f> Returns a localStorage handler for a given namespace
    (ns) -> storage <f> localStorage handler
        () -> <o> Returns all key:value pairs
        (key) -> <*> Returns one value
        (key, value) -> <f> Sets one value, returns the handler
        ({key: value, ...}) -> <f> Sets one or more values, returns the handler
        key <s> Any string
        value <*> Any value that can be JSON-serialized
        .delete <f> Delete method
            () -> <f> Deletes all key:value pairs, returns the handler
            (key[, ...]) -> <f> Deletes one or more pairs, returns the handler
            key <s> Any string
    ns <s> Namespace
*/
My.localStorage = (function() {
    if (!window.localStorage) {
        window.localStorage = {};
    }
    return function(ns) {
        function storage(key, value) {
            var args, ret;
            if (arguments.length == 0) {
                ret = {};
                Ox.forEach(localStorage, function(value, key) {
                    if (Ox.startsWith(key, ns + '.')) {
                        ret[key.slice(ns.length + 1)] = JSON.parse(value);
                    }
                });
            } else if (arguments.length == 1 && typeof key == 'string') {
                value = localStorage[ns + '.' + key];
                ret = Ox.isUndefined(value) ? void 0 : JSON.parse(value);
            } else {
                Ox.forEach(Ox.makeObject(arguments), function(value, key) {
                    localStorage[ns + '.' + key] = JSON.stringify(value);
                });
                ret = this;
            }
            return ret;
        };
        storage.delete = function() {
            var keys = arguments.length == 0 ? Object.keys(storage())
                : Ox.toArray(arguments)
            keys.forEach(function(key) {
                delete localStorage[ns + '.' + key];
            });
            return storage;
        };
        return storage;
    };
}();