module.exports = window.R = { _location: location, _replaceState: history.replaceState.bind(history), _pushState: history.pushState.bind(history), _decodeURIComponent: decodeURIComponent, _encodeURIComponent: encodeURIComponent, init: function(opts) { if (opts == null) { opts = {}; } this.root || (this.root = opts.root || 'root'); this.views || (this.views = opts.views || window.Views || [this.root]); this.render || (this.render = opts.render || window.render); this.h || (this.h = opts.helpers || window._); window.onpopstate = this.url_changed.bind(this) this.read(); }, cache: {}, getters: {}, setters: {}, param: function(key) { var base; if (this.getters[key]) { return (base = this.cache)[key] || (base[key] = this.getters[key](this._decodeURIComponent(this.params[key] || ''))); } else { return this._decodeURIComponent(this.params[key] || ''); } }, write: function() { var i, j, k, len, v; for (i = j = 0, len = arguments.length; j < len; i = ++j) { k = arguments[i]; if (!(i % 2)) { v = arguments[i + 1]; this._write(k, v); } } this._replaceState({}, this._location.pathname, this.to_path(this.view, this.params)); this.url_changed(); }, _write: function(k, v) { var value = this.setters[k] ? this.setters[k](v) : v; value ? this.params[k] = this._encodeURIComponent(value) : delete this.params[k]; }, toggle: function(flag, state) { this.write(flag, state != null ? (state ? 1 : void 0) : (!this.params[flag] ? 1 : void 0)); }, go: function(path) { this._pushState({}, null, path); this.url_changed(); }, read: function() { var ref; ref = this.split_path(this._location.pathname), this.view = ref[0], this.params = ref[1]; this._safe_params(); }, split_path: function(path) { if (path.length == 1) { return [this.root, {}]; } var list, params, view; list = this.h.compact(path.split("/")); view = this._existance(list.shift()); params = this.h.fromPairs(this.h.chunk(list, 2)); return [view, params]; }, _existance: function(view) { if (this.h.includes(this.views, view)) { return view; } else { return 'not_found'; } }, _safe_params: function() { return this.safe_params = this.h.fromPairs(this.h.reject(this.h.toPairs(this.params), function(pair) { return /^_/.test(pair[0]); })); }, to_path: function(view, params) { var array; if (view == null) { view = this.view; } if (params == null) { params = this.safe_params; } array = this.h.flatten(this.h.toPairs(params)); return '/' + view + '/' + array.join('/'); }, url_changed: function() { this.cache = {}; this.read(); this.render(); } };