/*
 * Ext JS Library 2.0 Copyright(c) 2006-2007, Ext JS, LLC. licensing@extjs.com
 * 
 * http://extjs.com/license
 */

Ext.data.JsonReader = function(A, B) {
	A = A || {};
	Ext.data.JsonReader.superclass.constructor.call(this, A, B || A.fields)
};
Ext.extend(Ext.data.JsonReader, Ext.data.DataReader, {
	read : function(response) {
		var json = response.responseText;
		var o = eval("(" + json + ")");
		if (!o) {
			throw {
				message : "JsonReader.read: Json object not found"
			}
		}
		if (o.metaData) {
			delete this.ef;
			this.meta = o.metaData;
			this.recordType = Ext.data.Record.create(o.metaData.fields);
			this.onMetaChange(this.meta, this.recordType, o)
		}
		return this.readRecords(o)
	},
	onMetaChange : function(A, C, B) {
	},
	simpleAccess : function(B, A) {
		return B[A]
	},
	getJsonAccessor : function() {
		var A = /[\[\.]/;
		return function(C) {
			try {
				return (A.test(C))
						? new Function("obj", "return obj." + C)
						: function(D) {
							return D[C]
						}
			} catch (B) {
			}
			return Ext.emptyFn
		}
	}(),
	readRecords : function(K) {
		this.jsonData = K;
		var H = this.meta, A = this.recordType, R = A.prototype.fields, F = R.items, E = R.length;
		if (!this.ef) {
			if (H.totalProperty) {
				this.getTotal = this.getJsonAccessor(H.totalProperty)
			}
			if (H.successProperty) {
				this.getSuccess = this.getJsonAccessor(H.successProperty)
			}
			this.getRoot = H.root ? this.getJsonAccessor(H.root) : function(U) {
				return U
			};
			if (H.id) {
				var Q = this.getJsonAccessor(H.id);
				this.getId = function(V) {
					var U = Q(V);
					return (U === undefined || U === "") ? null : U
				}
			} else {
				this.getId = function() {
					return null
				}
			}
			this.ef = [];
			for (var O = 0; O < E; O++) {
				R = F[O];
				var T = (R.mapping !== undefined && R.mapping !== null)
						? R.mapping
						: R.name;
				this.ef[O] = this.getJsonAccessor(T)
			}
		}
		var M = this.getRoot(K), S = M.length, I = S, D = true;
		if (H.totalProperty) {
			var G = parseInt(this.getTotal(K), 10);
			if (!isNaN(G)) {
				I = G
			}
		}
		if (H.successProperty) {
			var G = this.getSuccess(K);
			if (G === false || G === "false") {
				D = false
			}
		}
		var P = [];
		for (var O = 0; O < S; O++) {
			var L = M[O];
			var B = {};
			var J = this.getId(L);
			for (var N = 0; N < E; N++) {
				R = F[N];
				var G = this.ef[N](L);
				B[R.name] = R.convert((G !== undefined) ? G : R.defaultValue)
			}
			var C = new A(B, J);
			C.json = L;
			P[O] = C
		}
		return {
			success : D,
			records : P,
			totalRecords : I
		}
	}
});