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gun.js
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gun.js
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;(function(){
/* UNBUILD */
var root;
if(typeof window !== "undefined"){ root = window }
if(typeof global !== "undefined"){ root = global }
root = root || {};
var console = root.console || {log: function(){}};
function require(arg){
return arg.slice? require[resolve(arg)] : function(mod, path){
arg(mod = {exports: {}});
require[resolve(path)] = mod.exports;
}
function resolve(path){
return path.split('/').slice(-1).toString().replace('.js','');
}
}
if(typeof module !== "undefined"){ var common = module }
/* UNBUILD */
;require(function(module){
// Generic javascript utilities.
var Type = {};
//Type.fns = Type.fn = {is: function(fn){ return (!!fn && fn instanceof Function) }}
Type.fns = Type.fn = {is: function(fn){ return (!!fn && 'function' == typeof fn) }}
Type.bi = {is: function(b){ return (b instanceof Boolean || typeof b == 'boolean') }}
Type.num = {is: function(n){ return !list_is(n) && ((n - parseFloat(n) + 1) >= 0 || Infinity === n || -Infinity === n) }}
Type.text = {is: function(t){ return (typeof t == 'string') }}
Type.text.ify = function(t){
if(Type.text.is(t)){ return t }
if(typeof JSON !== "undefined"){ return JSON.stringify(t) }
return (t && t.toString)? t.toString() : t;
}
Type.text.random = function(l, c){
var s = '';
l = l || 24; // you are not going to make a 0 length random number, so no need to check type
c = c || '0123456789ABCDEFGHIJKLMNOPQRSTUVWXZabcdefghijklmnopqrstuvwxyz';
while(l > 0){ s += c.charAt(Math.floor(Math.random() * c.length)); l-- }
return s;
}
Type.text.match = function(t, o){ var r = false;
t = t || '';
o = Type.text.is(o)? {'=': o} : o || {}; // {'~', '=', '*', '<', '>', '+', '-', '?', '!'} // ignore case, exactly equal, anything after, lexically larger, lexically lesser, added in, subtacted from, questionable fuzzy match, and ends with.
if(Type.obj.has(o,'~')){ t = t.toLowerCase(); o['='] = (o['='] || o['~']).toLowerCase() }
if(Type.obj.has(o,'=')){ return t === o['='] }
if(Type.obj.has(o,'*')){ if(t.slice(0, o['*'].length) === o['*']){ r = true; t = t.slice(o['*'].length) } else { return false }}
if(Type.obj.has(o,'!')){ if(t.slice(-o['!'].length) === o['!']){ r = true } else { return false }}
if(Type.obj.has(o,'+')){
if(Type.list.map(Type.list.is(o['+'])? o['+'] : [o['+']], function(m){
if(t.indexOf(m) >= 0){ r = true } else { return true }
})){ return false }
}
if(Type.obj.has(o,'-')){
if(Type.list.map(Type.list.is(o['-'])? o['-'] : [o['-']], function(m){
if(t.indexOf(m) < 0){ r = true } else { return true }
})){ return false }
}
if(Type.obj.has(o,'>')){ if(t > o['>']){ r = true } else { return false }}
if(Type.obj.has(o,'<')){ if(t < o['<']){ r = true } else { return false }}
function fuzzy(t,f){ var n = -1, i = 0, c; for(;c = f[i++];){ if(!~(n = t.indexOf(c, n+1))){ return false }} return true } // via http://stackoverflow.com/questions/9206013/javascript-fuzzy-search
if(Type.obj.has(o,'?')){ if(fuzzy(t, o['?'])){ r = true } else { return false }} // change name!
return r;
}
Type.list = {is: function(l){ return (l instanceof Array) }}
Type.list.slit = Array.prototype.slice;
Type.list.sort = function(k){ // creates a new sort function based off some field
return function(A,B){
if(!A || !B){ return 0 } A = A[k]; B = B[k];
if(A < B){ return -1 }else if(A > B){ return 1 }
else { return 0 }
}
}
Type.list.map = function(l, c, _){ return obj_map(l, c, _) }
Type.list.index = 1; // change this to 0 if you want non-logical, non-mathematical, non-matrix, non-convenient array notation
Type.obj = {is: function(o){ return o? (o instanceof Object && o.constructor === Object) || Object.prototype.toString.call(o).match(/^\[object (\w+)\]$/)[1] === 'Object' : false }}
Type.obj.put = function(o, f, v){ return (o||{})[f] = v, o }
Type.obj.has = function(o, f){ return o && Object.prototype.hasOwnProperty.call(o, f) }
Type.obj.del = function(o, k){
if(!o){ return }
o[k] = null;
delete o[k];
return o;
}
Type.obj.as = function(o, f, v, u){ return o[f] = o[f] || (u === v? {} : v) }
Type.obj.ify = function(o){
if(obj_is(o)){ return o }
try{o = JSON.parse(o);
}catch(e){o={}};
return o;
}
;(function(){ var u;
function map(v,f){
if(obj_has(this,f) && u !== this[f]){ return }
this[f] = v;
}
Type.obj.to = function(from, to){
to = to || {};
obj_map(from, map, to);
return to;
}
}());
Type.obj.copy = function(o){ // because http://web.archive.org/web/20140328224025/http://jsperf.com/cloning-an-object/2
return !o? o : JSON.parse(JSON.stringify(o)); // is shockingly faster than anything else, and our data has to be a subset of JSON anyways!
}
;(function(){
function empty(v,i){ var n = this.n;
if(n && (i === n || (obj_is(n) && obj_has(n, i)))){ return }
if(i){ return true }
}
Type.obj.empty = function(o, n){
if(!o){ return true }
return obj_map(o,empty,{n:n})? false : true;
}
}());
;(function(){
function t(k,v){
if(2 === arguments.length){
t.r = t.r || {};
t.r[k] = v;
return;
} t.r = t.r || [];
t.r.push(k);
};
var keys = Object.keys;
Type.obj.map = function(l, c, _){
var u, i = 0, x, r, ll, lle, f = fn_is(c);
t.r = null;
if(keys && obj_is(l)){
ll = Object.keys(l); lle = true;
}
if(list_is(l) || ll){
x = (ll || l).length;
for(;i < x; i++){
var ii = (i + Type.list.index);
if(f){
r = lle? c.call(_ || this, l[ll[i]], ll[i], t) : c.call(_ || this, l[i], ii, t);
if(r !== u){ return r }
} else {
//if(Type.test.is(c,l[i])){ return ii } // should implement deep equality testing!
if(c === l[lle? ll[i] : i]){ return ll? ll[i] : ii } // use this for now
}
}
} else {
for(i in l){
if(f){
if(obj_has(l,i)){
r = _? c.call(_, l[i], i, t) : c(l[i], i, t);
if(r !== u){ return r }
}
} else {
//if(a.test.is(c,l[i])){ return i } // should implement deep equality testing!
if(c === l[i]){ return i } // use this for now
}
}
}
return f? t.r : Type.list.index? 0 : -1;
}
}());
Type.time = {};
Type.time.is = function(t){ return t? t instanceof Date : (+new Date().getTime()) }
var fn_is = Type.fn.is;
var list_is = Type.list.is;
var obj = Type.obj, obj_is = obj.is, obj_has = obj.has, obj_map = obj.map;
module.exports = Type;
})(require, './type');
;require(function(module){
// On event emitter generic javascript utility.
module.exports = function onto(tag, arg, as){
if(!tag){ return {to: onto} }
var tag = (this.tag || (this.tag = {}))[tag] ||
(this.tag[tag] = {tag: tag, to: onto._ = {
next: function(){}
}});
if(arg instanceof Function){
var be = {
off: onto.off ||
(onto.off = function(){
if(this.next === onto._.next){ return !0 }
if(this === this.the.last){
this.the.last = this.back;
}
this.to.back = this.back;
this.next = onto._.next;
this.back.to = this.to;
}),
to: onto._,
next: arg,
the: tag,
on: this,
as: as,
};
(be.back = tag.last || tag).to = be;
return tag.last = be;
}
(tag = tag.to).next(arg);
return tag;
};
})(require, './onto');
;require(function(module){
// TODO: Needs to be redone.
var On = require('./onto');
function Chain(create, opt){
opt = opt || {};
opt.id = opt.id || '#';
opt.rid = opt.rid || '@';
opt.uuid = opt.uuid || function(){
return (+new Date()) + Math.random();
};
var on = On;//On.scope();
on.stun = function(chain){
var stun = function(ev){
if(stun.off && stun === this.stun){
this.stun = null;
return false;
}
if(on.stun.skip){
return false;
}
if(ev){
ev.cb = ev.fn;
ev.off();
res.queue.push(ev);
}
return true;
}, res = stun.res = function(tmp, as){
if(stun.off){ return }
if(tmp instanceof Function){
on.stun.skip = true;
tmp.call(as);
on.stun.skip = false;
return;
}
stun.off = true;
var i = 0, q = res.queue, l = q.length, act;
res.queue = [];
if(stun === at.stun){
at.stun = null;
}
for(i; i < l; i++){ act = q[i];
act.fn = act.cb;
act.cb = null;
on.stun.skip = true;
act.ctx.on(act.tag, act.fn, act);
on.stun.skip = false;
}
}, at = chain._;
res.back = at.stun || (at.back||{_:{}})._.stun;
if(res.back){
res.back.next = stun;
}
res.queue = [];
at.stun = stun;
return res;
}
return on;
return;
return;
return;
return;
var ask = on.ask = function(cb, as){
if(!ask.on){ ask.on = On.scope() }
var id = opt.uuid();
if(cb){ ask.on(id, cb, as) }
return id;
}
ask._ = opt.id;
on.ack = function(at, reply){
if(!at || !reply || !ask.on){ return }
var id = at[opt.id] || at;
if(!ask.ons[id]){ return }
ask.on(id, reply);
return true;
}
on.ack._ = opt.rid;
return on;
return;
return;
return;
return;
on.on('event', function event(act){
var last = act.on.last, tmp;
if('in' === act.tag && Gun.chain.chain.input !== act.fn){ // TODO: BUG! Gun is not available in this module.
if((tmp = act.ctx) && tmp.stun){
if(tmp.stun(act)){
return;
}
}
}
if(!last){ return }
if(act.on.map){
var map = act.on.map, v;
for(var f in map){ v = map[f];
if(v){
emit(v, act, event);
}
}
/*
Gun.obj.map(act.on.map, function(v,f){ // TODO: BUG! Gun is not available in this module.
//emit(v[0], act, event, v[1]); // below enables more control
//console.log("boooooooo", f,v);
emit(v, act, event);
//emit(v[1], act, event, v[2]);
});
*/
} else {
emit(last, act, event);
}
if(last !== act.on.last){
event(act);
}
});
function emit(last, act, event, ev){
if(last instanceof Array){
act.fn.apply(act.as, last.concat(ev||act));
} else {
act.fn.call(act.as, last, ev||act);
}
}
/*on.on('emit', function(ev){
if(ev.on.map){
var id = ev.arg.via.gun._.id + ev.arg.get;
//
//ev.id = ev.id || Gun.text.random(6);
//ev.on.map[ev.id] = ev.arg;
//ev.proxy = ev.arg[1];
//ev.arg = ev.arg[0];
// below gives more control.
ev.on.map[id] = ev.arg;
//ev.proxy = ev.arg[2];
}
ev.on.last = ev.arg;
});*/
on.on('emit', function(ev){
var gun = ev.arg.gun;
if('in' === ev.tag && gun && !gun._.soul){ // TODO: BUG! Soul should be available. Currently not using it though, but should enable it (check for side effects if made available).
(ev.on.map = ev.on.map || {})[gun._.id || (gun._.id = Math.random())] = ev.arg;
}
ev.on.last = ev.arg;
});
return on;
}
module.exports = Chain;
})(require, './onify');
;require(function(module){
// Generic javascript scheduler utility.
var Type = require('./type');
function s(state, cb, time){ // maybe use lru-cache?
s.time = time;
s.waiting.push({when: state, event: cb || function(){}});
if(s.soonest < state){ return }
s.set(state);
}
s.waiting = [];
s.soonest = Infinity;
s.sort = Type.list.sort('when');
s.set = function(future){
if(Infinity <= (s.soonest = future)){ return }
var now = s.time();
future = (future <= now)? 0 : (future - now);
clearTimeout(s.id);
s.id = setTimeout(s.check, future);
}
s.each = function(wait, i, map){
var ctx = this;
if(!wait){ return }
if(wait.when <= ctx.now){
if(wait.event instanceof Function){
setTimeout(function(){ wait.event() },0);
}
} else {
ctx.soonest = (ctx.soonest < wait.when)? ctx.soonest : wait.when;
map(wait);
}
}
s.check = function(){
var ctx = {now: s.time(), soonest: Infinity};
s.waiting.sort(s.sort);
s.waiting = Type.list.map(s.waiting, s.each, ctx) || [];
s.set(ctx.soonest);
}
module.exports = s;
})(require, './schedule');
;require(function(module){
/* Based on the Hypothetical Amnesia Machine thought experiment */
function HAM(machineState, incomingState, currentState, incomingValue, currentValue){
if(machineState < incomingState){
return {defer: true}; // the incoming value is outside the boundary of the machine's state, it must be reprocessed in another state.
}
if(incomingState < currentState){
return {historical: true}; // the incoming value is within the boundary of the machine's state, but not within the range.
}
if(currentState < incomingState){
return {converge: true, incoming: true}; // the incoming value is within both the boundary and the range of the machine's state.
}
if(incomingState === currentState){
incomingValue = Lexical(incomingValue) || "";
currentValue = Lexical(currentValue) || "";
if(incomingValue === currentValue){ // Note: while these are practically the same, the deltas could be technically different
return {state: true};
}
/*
The following is a naive implementation, but will always work.
Never change it unless you have specific needs that absolutely require it.
If changed, your data will diverge unless you guarantee every peer's algorithm has also been changed to be the same.
As a result, it is highly discouraged to modify despite the fact that it is naive,
because convergence (data integrity) is generally more important.
Any difference in this algorithm must be given a new and different name.
*/
if(incomingValue < currentValue){ // Lexical only works on simple value types!
return {converge: true, current: true};
}
if(currentValue < incomingValue){ // Lexical only works on simple value types!
return {converge: true, incoming: true};
}
}
return {err: "Invalid CRDT Data: "+ incomingValue +" to "+ currentValue +" at "+ incomingState +" to "+ currentState +"!"};
}
if(typeof JSON === 'undefined'){
throw new Error(
'JSON is not included in this browser. Please load it first: ' +
'ajax.cdnjs.com/ajax/libs/json2/20110223/json2.js'
);
}
var Lexical = JSON.stringify, undefined;
module.exports = HAM;
})(require, './HAM');
;require(function(module){
var Type = require('./type');
var Val = {};
Val.is = function(v){ // Valid values are a subset of JSON: null, binary, number (!Infinity), text, or a soul relation. Arrays need special algorithms to handle concurrency, so they are not supported directly. Use an extension that supports them if needed but research their problems first.
if(v === u){ return false }
if(v === null){ return true } // "deletes", nulling out fields.
if(v === Infinity){ return false } // we want this to be, but JSON does not support it, sad face.
if(text_is(v) // by "text" we mean strings.
|| bi_is(v) // by "binary" we mean boolean.
|| num_is(v)){ // by "number" we mean integers or decimals.
return true; // simple values are valid.
}
return Val.rel.is(v) || false; // is the value a soul relation? Then it is valid and return it. If not, everything else remaining is an invalid data type. Custom extensions can be built on top of these primitives to support other types.
}
Val.rel = {_: '#'};
;(function(){
Val.rel.is = function(v){ // this defines whether an object is a soul relation or not, they look like this: {'#': 'UUID'}
if(v && v[rel_] && !v._ && obj_is(v)){ // must be an object.
var o = {};
obj_map(v, map, o);
if(o.id){ // a valid id was found.
return o.id; // yay! Return it.
}
}
return false; // the value was not a valid soul relation.
}
function map(s, f){ var o = this; // map over the object...
if(o.id){ return o.id = false } // if ID is already defined AND we're still looping through the object, it is considered invalid.
if(f == rel_ && text_is(s)){ // the field should be '#' and have a text value.
o.id = s; // we found the soul!
} else {
return o.id = false; // if there exists anything else on the object that isn't the soul, then it is considered invalid.
}
}
}());
Val.rel.ify = function(t){ return obj_put({}, rel_, t) } // convert a soul into a relation and return it.
var rel_ = Val.rel._, u;
var bi_is = Type.bi.is;
var num_is = Type.num.is;
var text_is = Type.text.is;
var obj = Type.obj, obj_is = obj.is, obj_put = obj.put, obj_map = obj.map;
module.exports = Val;
})(require, './val');
;require(function(module){
var Type = require('./type');
var Val = require('./val');
var Node = {_: '_'};
Node.soul = function(n, o){ return (n && n._ && n._[o || soul_]) } // convenience function to check to see if there is a soul on a node and return it.
Node.soul.ify = function(n, o){ // put a soul on an object.
o = (typeof o === 'string')? {soul: o} : o || {};
n = n || {}; // make sure it exists.
n._ = n._ || {}; // make sure meta exists.
n._[soul_] = o.soul || n._[soul_] || text_random(); // put the soul on it.
return n;
}
Node.soul._ = Val.rel._;
;(function(){
Node.is = function(n, cb, as){ var s; // checks to see if an object is a valid node.
if(!obj_is(n)){ return false } // must be an object.
if(s = Node.soul(n)){ // must have a soul on it.
return !obj_map(n, map, {as:as,cb:cb,s:s,n:n});
}
return false; // nope! This was not a valid node.
}
function map(v, f){ // we invert this because the way we check for this is via a negation.
if(f === Node._){ return } // skip over the metadata.
if(!Val.is(v)){ return true } // it is true that this is an invalid node.
if(this.cb){ this.cb.call(this.as, v, f, this.n, this.s) } // optionally callback each field/value.
}
}());
;(function(){
Node.ify = function(obj, o, as){ // returns a node from a shallow object.
if(!o){ o = {} }
else if(typeof o === 'string'){ o = {soul: o} }
else if(o instanceof Function){ o = {map: o} }
if(o.map){ o.node = o.map.call(as, obj, u, o.node || {}) }
if(o.node = Node.soul.ify(o.node || {}, o)){
obj_map(obj, map, {o:o,as:as});
}
return o.node; // This will only be a valid node if the object wasn't already deep!
}
function map(v, f){ var o = this.o, tmp, u; // iterate over each field/value.
if(o.map){
tmp = o.map.call(this.as, v, ''+f, o.node);
if(u === tmp){
obj_del(o.node, f);
} else
if(o.node){ o.node[f] = tmp }
return;
}
if(Val.is(v)){
o.node[f] = v;
}
}
}());
var obj = Type.obj, obj_is = obj.is, obj_del = obj.del, obj_map = obj.map;
var text = Type.text, text_random = text.random;
var soul_ = Node.soul._;
var u;
module.exports = Node;
})(require, './node');
;require(function(module){
var Type = require('./type');
var Node = require('./node');
function State(){
var t;
if(perf){
t = start + perf.now();
} else {
t = time();
}
if(last < t){
return N = 0, last = t + State.drift;
}
return last = t + ((N += 1) / D) + State.drift;
}
var time = Type.time.is, last = -Infinity, N = 0, D = 1000; // WARNING! In the future, on machines that are D times faster than 2016AD machines, you will want to increase D by another several orders of magnitude so the processing speed never out paces the decimal resolution (increasing an integer effects the state accuracy).
var perf = (typeof performance !== 'undefined')? (performance.timing && performance) : false, start = (perf && perf.timing && perf.timing.navigationStart) || (perf = false);
State._ = '>';
State.drift = 0;
State.is = function(n, f, o){ // convenience function to get the state on a field on a node and return it.
var tmp = (f && n && n[N_] && n[N_][State._]) || o;
if(!tmp){ return }
return num_is(tmp = tmp[f])? tmp : -Infinity;
}
State.ify = function(n, f, s, v, soul){ // put a field's state on a node.
if(!n || !n[N_]){ // reject if it is not node-like.
if(!soul){ // unless they passed a soul
return;
}
n = Node.soul.ify(n, soul); // then make it so!
}
var tmp = obj_as(n[N_], State._); // grab the states data.
if(u !== f && f !== N_){
if(num_is(s)){
tmp[f] = s; // add the valid state.
}
if(u !== v){ // Note: Not its job to check for valid values!
n[f] = v;
}
}
return n;
}
State.to = function(from, f, to){
var val = from[f];
if(obj_is(val)){
val = obj_copy(val);
}
return State.ify(to, f, State.is(from, f), val, Node.soul(from));
}
;(function(){
State.map = function(cb, s, as){ var u; // for use with Node.ify
var o = obj_is(o = cb || s)? o : null;
cb = fn_is(cb = cb || s)? cb : null;
if(o && !cb){
s = num_is(s)? s : State();
o[N_] = o[N_] || {};
obj_map(o, map, {o:o,s:s});
return o;
}
as = as || obj_is(s)? s : u;
s = num_is(s)? s : State();
return function(v, f, o, opt){
if(!cb){
map.call({o: o, s: s}, v,f);
return v;
}
cb.call(as || this || {}, v, f, o, opt);
if(obj_has(o,f) && u === o[f]){ return }
map.call({o: o, s: s}, v,f);
}
}
function map(v,f){
if(N_ === f){ return }
State.ify(this.o, f, this.s) ;
}
}());
var obj = Type.obj, obj_as = obj.as, obj_has = obj.has, obj_is = obj.is, obj_map = obj.map, obj_copy = obj.copy;
var num = Type.num, num_is = num.is;
var fn = Type.fn, fn_is = fn.is;
var N_ = Node._, u;
module.exports = State;
})(require, './state');
;require(function(module){
var Type = require('./type');
var Val = require('./val');
var Node = require('./node');
var Graph = {};
;(function(){
Graph.is = function(g, cb, fn, as){ // checks to see if an object is a valid graph.
if(!g || !obj_is(g) || obj_empty(g)){ return false } // must be an object.
return !obj_map(g, map, {cb:cb,fn:fn,as:as}); // makes sure it wasn't an empty object.
}
function map(n, s){ // we invert this because the way'? we check for this is via a negation.
if(!n || s !== Node.soul(n) || !Node.is(n, this.fn, this.as)){ return true } // it is true that this is an invalid graph.
if(!this.cb){ return }
nf.n = n; nf.as = this.as; // sequential race conditions aren't races.
this.cb.call(nf.as, n, s, nf);
}
function nf(fn){ // optional callback for each node.
if(fn){ Node.is(nf.n, fn, nf.as) } // where we then have an optional callback for each field/value.
}
}());
;(function(){
Graph.ify = function(obj, env, as){
var at = {path: [], obj: obj};
if(!env){
env = {};
} else
if(typeof env === 'string'){
env = {soul: env};
} else
if(env instanceof Function){
env.map = env;
}
if(env.soul){
at.rel = Val.rel.ify(env.soul);
}
env.graph = env.graph || {};
env.seen = env.seen || [];
env.as = env.as || as;
node(env, at);
env.root = at.node;
return env.graph;
}
function node(env, at){ var tmp;
if(tmp = seen(env, at)){ return tmp }
at.env = env;
at.soul = soul;
if(Node.ify(at.obj, map, at)){
//at.rel = at.rel || Val.rel.ify(Node.soul(at.node));
env.graph[Val.rel.is(at.rel)] = at.node;
}
return at;
}
function map(v,f,n){
var at = this, env = at.env, is, tmp;
if(Node._ === f && obj_has(v,Val.rel._)){
return n._; // TODO: Bug?
}
if(!(is = valid(v,f,n, at,env))){ return }
if(!f){
at.node = at.node || n || {};
if(obj_has(v, Node._)){
at.node._ = obj_copy(v._);
}
at.node = Node.soul.ify(at.node, Val.rel.is(at.rel));
at.rel = at.rel || Val.rel.ify(Node.soul(at.node));
}
if(tmp = env.map){
tmp.call(env.as || {}, v,f,n, at);
if(obj_has(n,f)){
v = n[f];
if(u === v){
obj_del(n, f);
return;
}
if(!(is = valid(v,f,n, at,env))){ return }
}
}
if(!f){ return at.node }
if(true === is){
return v;
}
tmp = node(env, {obj: v, path: at.path.concat(f)});
if(!tmp.node){ return }
return tmp.rel; //{'#': Node.soul(tmp.node)};
}
function soul(id){ var at = this;
var prev = Val.rel.is(at.rel), graph = at.env.graph;
at.rel = at.rel || Val.rel.ify(id);
at.rel[Val.rel._] = id;
if(at.node && at.node[Node._]){
at.node[Node._][Val.rel._] = id;
}
if(obj_has(graph, prev)){
graph[id] = graph[prev];
obj_del(graph, prev);
}
}
function valid(v,f,n, at,env){ var tmp;
if(Val.is(v)){ return true }
if(obj_is(v)){ return 1 }
if(tmp = env.invalid){
v = tmp.call(env.as || {}, v,f,n);
return valid(v,f,n, at,env);
}
env.err = "Invalid value at '" + at.path.concat(f).join('.') + "'!";
}
function seen(env, at){
var arr = env.seen, i = arr.length, has;
while(i--){ has = arr[i];
if(at.obj === has.obj){ return has }
}
arr.push(at);
}
}());
Graph.node = function(node){
var soul = Node.soul(node);
if(!soul){ return }
return obj_put({}, soul, node);
}
;(function(){
Graph.to = function(graph, root, opt){
if(!graph){ return }
var obj = {};
opt = opt || {seen: {}};
obj_map(graph[root], map, {obj:obj, graph: graph, opt: opt});
return obj;
}
function map(v,f){ var tmp, obj;
if(Node._ === f){
if(obj_empty(v, Val.rel._)){
return;
}
this.obj[f] = obj_copy(v);
return;
}
if(!(tmp = Val.rel.is(v))){
this.obj[f] = v;
return;
}
if(obj = this.opt.seen[tmp]){
this.obj[f] = obj;
return;
}
this.obj[f] = this.opt.seen[tmp] = Graph.to(this.graph, tmp, this.opt);
}
}());
var fn_is = Type.fn.is;
var obj = Type.obj, obj_is = obj.is, obj_del = obj.del, obj_has = obj.has, obj_empty = obj.empty, obj_put = obj.put, obj_map = obj.map, obj_copy = obj.copy;
var u;
module.exports = Graph;
})(require, './graph');
;require(function(module){
var Type = require('./type');
function Dup(){
this.cache = {};
}
Dup.prototype.track = function(id){
this.cache[id] = Type.time.is();
if (!this.to) {
this.gc(); // Engage GC.
}
return id;
};
Dup.prototype.check = function(id){
// Have we seen this ID recently?
return Type.obj.has(this.cache, id)? this.track(id) : false; // Important, bump the ID's liveliness if it has already been seen before - this is critical to stopping broadcast storms.
}
Dup.prototype.gc = function(){
var de = this, now = Type.time.is(), oldest = now, maxAge = 5 * 60 * 1000;
// TODO: Gun.scheduler already does this? Reuse that.
Type.obj.map(de.cache, function(time, id){
oldest = Math.min(now, time);
if ((now - time) < maxAge){ return }
Type.obj.del(de.cache, id);
});
var done = Type.obj.empty(de.cache);
if(done){
de.to = null; // Disengage GC.
return;
}
var elapsed = now - oldest; // Just how old?
var nextGC = maxAge - elapsed; // How long before it's too old?
de.to = setTimeout(function(){ de.gc() }, nextGC); // Schedule the next GC event.
}
module.exports = Dup;
})(require, './dup');
;require(function(module){
function Gun(o){
if(o instanceof Gun){ return (this._ = {gun: this}).gun }
if(!(this instanceof Gun)){ return new Gun(o) }
return Gun.create(this._ = {gun: this, opt: o});
}
Gun.is = function(gun){ return (gun instanceof Gun) }
Gun.version = 0.7;
Gun.chain = Gun.prototype;
Gun.chain.toJSON = function(){};
var Type = require('./type');
Type.obj.to(Type, Gun);
Gun.HAM = require('./HAM');
Gun.val = require('./val');
Gun.node = require('./node');
Gun.state = require('./state');
Gun.graph = require('./graph');
Gun.dup = require('./dup');
Gun.schedule = require('./schedule');
Gun.on = require('./onify')();
Gun._ = { // some reserved key words, these are not the only ones.
node: Gun.node._ // all metadata of a node is stored in the meta property on the node.
,soul: Gun.val.rel._ // a soul is a UUID of a node but it always points to the "latest" data known.
,state: Gun.state._ // other than the soul, we store HAM metadata.
,field: '.' // a field is a property on a node which points to a value.
,value: '=' // the primitive value.
}
;(function(){
Gun.create = function(at){
at.on = at.on || Gun.on;
at.root = at.root || at.gun;
at.graph = at.graph || {};
at.dup = at.dup || new Gun.dup;
at.ask = Gun.on.ask;
at.ack = Gun.on.ack;
var gun = at.gun.opt(at.opt);
if(!at.once){
at.on('in', root, at);
at.on('out', root, at);
}
at.once = 1;
return gun;
}
function root(at){
//console.log("add to.next(at)"); // TODO: BUG!!!
var ev = this, cat = ev.as, coat;
if(!at.gun){ at.gun = cat.gun }
if(!at['#']){ at['#'] = Gun.text.random() } // TODO: Use what is used other places instead.
if(cat.dup.check(at['#'])){ return }
if(at['@']){
// TODO: BUG! For multi-instances, the "ack" system is globally shared, but it shouldn't be.
if(cat.ack(at['@'], at)){ return } // TODO: Consider not returning here, maybe, where this would let the "handshake" on sync occur for Holy Grail?
cat.dup.track(at['#']);
Gun.on('out', obj_to(at, {gun: cat.gun}));
return;
}
cat.dup.track(at['#']);
//if(cat.ack(at['@'], at)){ return }
//cat.ack(at['@'], at);
coat = obj_to(at, {gun: cat.gun});
if(at.get){
//Gun.on.GET(coat);
Gun.on('get', coat);
}
if(at.put){
//Gun.on.PUT(coat);
Gun.on('put', coat);
}
Gun.on('out', coat);
}
}());
;(function(){
Gun.on('put', function(at){
//Gun.on.PUT = function(at){
if(!at['#']){ return this.to.next(at) } // for tests.
var ev = this, ctx = {gun: at.gun, graph: at.gun._.graph, put: {}, map: {}, machine: Gun.state()};
if(!Gun.graph.is(at.put, null, verify, ctx)){ ctx.err = "Error: Invalid graph!" }
if(ctx.err){ return ctx.gun.on('in', {'@': at['#'], err: Gun.log(ctx.err) }) }
obj_map(ctx.put, merge, ctx);
obj_map(ctx.map, map, ctx);
if(u !== ctx.defer){
Gun.schedule(ctx.defer, function(){
Gun.on('put', at);
}, Gun.state);
}
if(!ctx.diff){ return }
ev.to.next(obj_to(at, {put: ctx.diff}));
});
function verify(val, key, node, soul){ var ctx = this;
var state = Gun.state.is(node, key), tmp;
if(!state){ return ctx.err = "Error: No state on '"+key+"' in node '"+soul+"'!" }
var vertex = ctx.graph[soul] || empty, was = Gun.state.is(vertex, key, true), known = vertex[key];
var HAM = Gun.HAM(ctx.machine, state, was, val, known);
if(!HAM.incoming){
if(HAM.defer){ // pick the lowest
ctx.defer = (state < (ctx.defer || Infinity))? state : ctx.defer;
}
}
ctx.put[soul] = Gun.state.to(node, key, ctx.put[soul]);
(ctx.diff || (ctx.diff = {}))[soul] = Gun.state.to(node, key, ctx.diff[soul]);
}
function merge(node, soul){
var ref = ((this.gun._).next || empty)[soul];
if(!ref){ return }
var at = this.map[soul] = {
put: this.node = node,
get: this.soul = soul,
gun: this.ref = ref
};
obj_map(node, each, this);
Gun.on('node', at);
}
function each(val, key){
var graph = this.graph, soul = this.soul, cat = (this.ref._), tmp;
graph[soul] = Gun.state.to(this.node, key, graph[soul]);
(cat.put || (cat.put = {}))[key] = val;
}
function map(at, soul){
if(!at.gun){ return }
(at.gun._).on('in', at);
}
}());
;(function(){
Gun.on('get', function(at){
var ev = this, soul = at.get[_soul], cat = at.gun._, node = cat.graph[soul], field = at.get[_field], tmp;
var next = cat.next || (cat.next = {}), as = ((next[soul] || empty)._);
if(!node || !as){ return ev.to.next(at) }
if(field){
if(!obj_has(node, field)){ return ev.to.next(at) }
node = Gun.state.to(node, field);
} else {
node = Gun.obj.copy(node);
}
//if(at.gun === cat.gun){
node = Gun.graph.node(node); // TODO: BUG! Clone node?
//} else {
// cat = (at.gun._);
//}
tmp = as.ack;
cat.on('in', {
'@': at['#'],
how: 'mem',
put: node,
gun: as.gun
});
if(0 < tmp){
return;
}
ev.to.next(at);
});
}());
;(function(){
Gun.on.ask = function(cb, as){
if(!this.on){ return }
var id = Gun.text.random();
if(cb){ this.on(id, cb, as) }
return id;
}
Gun.on.ack = function(at, reply){
if(!at || !reply || !this.on){ return }
var id = at['#'] || at;
if(!this.tag || !this.tag[id]){ return }
this.on(id, reply);
return true;
}
}());
;(function(){
Gun.chain.opt = function(opt){
opt = opt || {};
var gun = this, at = gun._, tmp = opt.peers || opt;
if(!obj_is(opt)){ opt = {} }
if(!obj_is(at.opt)){ at.opt = opt }
if(text_is(tmp)){ tmp = [tmp] }
if(list_is(tmp)){
tmp = obj_map(tmp, function(url, i, map){