namespace etoy
{
    class RuleCenterField
    {
        public string name;
        public string type;
        public int len = int.MinValue;
    }

    class JsonTableGenerater : IGenerater
    {
        private readonly JsonWriter _writer;
        private Dictionary<string, RuleCenterField> _fieldMap;

        private void TableRowsGenerate(Table table)
        {
            var fieldInfos = table.FieldInfos;

            for (int i = 0, len = fieldInfos.Length; i < len; i++)
            {
                var field = fieldInfos[i];
                if (!field.IsServerField) continue;

                var fieldData = new RuleCenterField();
                fieldData.name = field.FieldName;
                fieldData.type = RuleCenterUtil.ToRuleCenterType(field.FieldType, field.IsRepeated);
                _fieldMap.Add(field.FieldName, fieldData);
            }

            _writer.OnRows(table.Rows, _fieldMap);
        }

        private void TableGenerate(Table table)
        {
            _fieldMap.Clear();

            _writer.Bracket().Indent().NewLine();
            {
                _writer.AppendKey(RuleCenterJsonStructureDefine.Table_Name).Append(table.Name);
                _writer.Dot().NewLine();
                TableRowsGenerate(table);
                _writer.Dot().NewLine();
                _writer.OnFields(_fieldMap);
            }
            _writer.Dedent().NewLine().EndBracket();
        }

        public void Generate(Context context)
        {
            _fieldMap = new Dictionary<string, RuleCenterField>();

            var tables = context.Blackboard.Tables.FindAll(table => table.TableTag.HasFlag(TableTag.Server));

            _writer.EnumeratorToJson(tables, tables.Count, Loop);

            void Loop(int _, Table table)
            {
                if (table.TableTag.HasFlag(TableTag.Server))
                {
                    _writer.NewLine();
                    TableGenerate(table);
                }
            }
        }
        public JsonTableGenerater(JsonWriter writer)
        {
            _writer = writer;
        }
    }
}