using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace DbMigrate {
    public class SqlTable {
        public string TableName { get; set; }
        public string CreateTableSql { get; set; }
        public string OriginalSql { get; set; }
        public Dictionary<string, string> Columns { get; set; }
        public Dictionary<string, string> Indexes { get; set; }
        public Dictionary<string, string> Triggers { get; set; }



        public SqlTable() {
            initTable();
        }

        public SqlTable(string sql) {
            initTable();
            OriginalSql = sql;
            this.ParseSql(sql);
        }

        private void initTable() {
            Columns = new Dictionary<string, string>();
            Indexes = new Dictionary<string, string>();
            Triggers = new Dictionary<string, string>();
            CreateTableSql = "";
        }

        public string FullSql() {
            StringBuilder sb = new StringBuilder();
            //sb.AppendLine("-- Create Table " + TableName);
            sb.AppendLine(CreateTableSql);

            if (Indexes.Count > 0) {
                sb.AppendLine("\r\n-- Create Indexes");
                foreach (string index in Indexes.Keys) {
                    sb.AppendLine(Indexes[index]);
                }
            }

            if (Triggers.Count > 0) {
                sb.AppendLine("\r\n-- Create Triggers");
                foreach (string trigger in Triggers.Keys) {
                    sb.AppendLine(Triggers[trigger]);
                }
            }

            sb.AppendLine();
            return sb.ToString();
        }

        public string[] GetColumnNames() {
            return Columns.Keys.ToArray();
        }

        public string[] GetColumns() {
            return Columns.Values.ToArray();
        }

        public bool HasColumn(string columnName) {
            return Columns.ContainsKey(columnName);
        }

        public string[] GetTriggerNames() {
            return Triggers.Keys.ToArray();
        }

        public string[] GetTriggers() {
            return Triggers.Values.ToArray();
        }

        public bool HasTrigger(string triggerName) {
            return Triggers.ContainsKey(triggerName);
        }

        public bool HasIndex(string indexName) {
            return Indexes.ContainsKey(indexName);
        }

        public string[] GetIndexNames() {
            return Indexes.Keys.ToArray();
        }

        public string[] GetIndexes() {
            return Indexes.Values.ToArray();
        }

    }
}