gun/lib/space.js
2018-08-18 16:19:39 -07:00

119 lines
3.3 KiB
JavaScript

;(function(){
var Gun = (typeof window !== "undefined")? window.Gun : require('../gun');
var ify = Gun.node.ify, empty = {}, u;
console.log("Index space is beta, API may change!");
Gun.chain.space = function(key, data, opt){
if(data instanceof Function){
return travel(key, data, opt, this);
}
var gun = this;
if(Gun.is(data)){
data.get(function(soul){
if(!soul){
return cb && cb({err: "Indexspace cannot link `undefined`!"});
}
gun.space(key, Gun.val.link.ify(soul), opt);
}, true);
return gun;
}
var cb = (opt instanceof Function && opt), rank = (opt||empty).rank || opt, root = gun.back(-1), tmp;
gun.get(function(soul){
if(!soul){
soul = (gun.back('opt.uuid') || Gun.text.random)(9);
}
/*var space = ify({}, soul), sub = space, l = 0, tmp;
var atom = Gun.text.ify({get: key, put: data});
Gun.list.map(index(0, key.length), function(i){
sub[(tmp = key.slice(l, i))+'"'] = atom;
sub = sub[tmp] = ify({}, soul+'"'+key.slice(0,i));
l = i;
});
tmp = {}; tmp[key] = atom.put; tmp = ify(tmp, soul+'"');
sub[key.slice(l, key.length)] = tmp;
console.log('????', space);*/
var shell = {}, l = 0, tmp;
var atom = Gun.text.ify({get: key, put: data});
tmp = {}; tmp[key] = data;
shell.$ = ify(tmp, soul);
tmp = {}; tmp[key.slice(0,l = 1)] = atom;
shell[0] = ify(tmp, soul+'"');
Gun.list.map(index(1, key.length), function(i){
tmp = {}; tmp[key.slice(l,i)] = atom;
shell[i] = ify(tmp, soul+'"'+key.slice(0,l));
l = i;
});
tmp = {}; tmp[key.slice(l, key.length)] = atom;
shell[l+1] = ify(tmp, soul+'"'+key.slice(0,l));
//tmp = {}; tmp[key.slice(l, key.length)] = Gun.val.link.ify(soul); shell[l+1] = ify(tmp, soul+'"'+key.slice(0,l));
//console.log('???', shell);
gun.put(shell, cb, {soul: soul, shell: shell});
},true);
return gun;
}
function travel(key, cb, opt, ref){
var root = ref.back(-1), tmp;
opt = opt || {};
opt.ack = opt.ack || {};
ref.get(function(soul){
ref.get(key).get(function(msg, eve){
eve.off();
opt.exact = true;
opt.ack.key = key;
opt.ack.data = msg.put;
if(opt.match){ cb(opt.ack, key, msg, eve) }
});
//if(u !== msg.put){
// cb(msg.put, msg.get, msg, eve);
// return;
//}
opt.soul = soul;
opt.start = soul+'"';
opt.key = key;
opt.top = index(0, opt.find);
opt.low = opt.top.reverse();
find(opt, cb, root);
}, true);
}
function find(o, cb, root){
var id = o.start+o.key.slice(0,o.low[0]);
root.get(id).get(function(msg, eve){
eve.off();
o.ack.tree = {};
if(u === msg.put){
if(!o.exact){ return o.match = true }
cb(o.ack, id, msg, eve);
return;
o.low = o.low.slice(1);
if(!o.low.length){
cb(u, o.key, msg, eve);
return;
}
find(o, cb, root);
return;
}
Gun.node.is(msg.put, function(v,k){
if(!(k = Gun.obj.ify(v) || empty).get){ return }
o.ack.tree[k.get] = k.put;
});
if(!o.exact){ return o.match = true }
cb(o.ack, id, msg, eve);
});
}
function index(n, m, l, k){
l = l || [];
if(!m){ return l }
k = Math.ceil((n||1) / 10);
if((n+k) >= m){ return l }
l.push(n + k);
return index(n + k, m, l);
}
}());
/*
gun.user('google').space('martti', "testing 123!");
gun.user('google').get('search').space('ma', function(){
// tree & index
// UNFINISHED API!
});
*/