(function() {
  var __slice = [].slice;

  (function(root, factory) {
    if (typeof define === 'function' && define.amd) {
      return define(['_'], factory(root));
    } else if (typeof module !== "undefined" && module !== null ? module.exports : void 0) {
      return module.exports = factory();
    }
  })(this, function() {
    return {
      arrangeModelFilter: function(groups) {
        var data, index, item, list, others, sql, _i, _j, _len, _len1;
        data = [];
        others = -1;
        for (index = _i = 0, _len = groups.length; _i < _len; index = ++_i) {
          item = groups[index];
          if (item.rule === 'else') {
            others = index;
          }
          item.sql = this.filterRuleToSql(item.rule);
          data.push(item);
        }
        if (others < 0) {
          return data;
        }
        list = [];
        for (index = _j = 0, _len1 = data.length; _j < _len1; index = ++_j) {
          item = data[index];
          if (index !== others) {
            list.push(item.sql);
          }
        }
        sql = list.join(' OR ');
        data[others].sql = " NOT (" + sql + ")";
        return data;
      },
      filterRuleToSql: function(text) {
        var index, list, rule, rules, sql, _i, _len;
        rules = this.filterRuleMatcher(text);
        list = [];
        for (index = _i = 0, _len = rules.length; _i < _len; index = ++_i) {
          rule = rules[index];
          sql = (function() {
            switch (rule.method) {
              case 'start':
                return "'" + rule.value + "%'";
              case 'end':
                return "'%" + rule.value + "'";
              case 'contain':
                return "'%" + rule.value + "%'";
              case 'mid':
                return "'" + rule.placeholder + rule.value + "%'";
            }
          })();
          sql = "f0 LIKE " + sql;
          if (index > 0) {
            sql = rule.operator + " " + sql;
          }
          list.push(sql);
        }
        return list.join(' ');
      },
      filterRuleMatcher: function(text) {
        var pattern, rules;
        rules = [];
        if (!text) {
          return rules;
        }
        if (text === 'else') {
          rules.push({
            value: 'else',
            operator: ' and ',
            method: ''
          });
          return rules;
        }
        pattern = /((and|or)\s)?(start|end|contain|mid)\((.+?)\)/g;
        text.replace(pattern, function() {
          var args, count, index, list, params, rule, _i;
          args = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
          rule = {
            operator: args[2],
            method: args[3],
            value: args[4]
          };
          rule.operator = rule.operator || ' and ';
          if (rule.method === 'mid') {
            params = rule.value.split(',');
            count = parseInt(params[0]);
            if (isNaN(count)) {
              count = 0;
            }
            count = Math.max(0, count - 2);
            list = [];
            for (index = _i = 0; 0 <= count ? _i <= count : _i >= count; index = 0 <= count ? ++_i : --_i) {
              list.push('_');
            }
            rule.placeholder = list.join('');
            rule.value = params[1];
          }
          return rules.push(rule);
        });
        return rules;
      },

      /*
      config:
       */
      modelFieldFilterIndex: function(config, env, language) {
        var index, result, rule, _fn, _i, _len, _ref;
        if (language == null) {
          language = 'en';
        }
        result = [];
        if (typeof config === 'string') {
          config = JSON.parse(config);
        }
        if (!(config != null ? config.target : void 0)) {
          return result;
        }
        _ref = config.target;
        _fn = function() {
          var subtitle, title, _ref1, _ref2;
          title = (_ref1 = config.title[language]) != null ? _ref1[index] : void 0;
          subtitle = (_ref2 = config.subtitle[language]) != null ? _ref2[index] : void 0;
          if (rule.indexOf(env) >= 0 && (title || subtitle)) {
            return result.push(index);
          }
        };
        for (index = _i = 0, _len = _ref.length; _i < _len; index = ++_i) {
          rule = _ref[index];
          _fn();
        }
        return result;
      },
      modelFieldFilter: function(fields, indexes) {
        var index, _i, _len, _results;
        if (typeof fields === 'string') {
          fields = JSON.parse(fields);
        }
        _results = [];
        for (_i = 0, _len = indexes.length; _i < _len; _i++) {
          index = indexes[_i];
          _results.push(fields[index]);
        }
        return _results;
      },
      categoryLink: function(node) {
        var _ref;
        if (((_ref = node.children) != null ? _ref.length : void 0) > 0 || node.child_count > 0 || node.children > 0) {
          return "/category/" + node.rank + "-" + node.id + ".html";
        } else {
          return "/category/" + node.id + "/product.html";
        }
      },
      analyseUnitIndex: function(items) {
        var current, index, last, _results;
        if (items.length === 0) {
          return;
        }
        index = 0;
        last = {};
        _results = [];
        while (current = items[index++]) {
          current.unit = current.unit || 1;
          if (current.unit !== last.unit) {
            current.specialUnit = true;
          }
          _results.push(last = current);
        }
        return _results;
      }
    };
  });

}).call(this);