//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
//     file="ExpSchemaBase.cs"
//     Project: StgSharp
//     AuthorGroup: Nitload Space
//     Copyright (c) Nitload Space. All rights reserved.
//     
//     Permission is hereby granted, free of charge, to any person 
//     obtaining a copy of this software and associated documentation 
//     files (the “Software”), to deal in the Software without restriction, 
//     including without limitation the rights to use, copy, modify, merge,
//     publish, distribute, sublicense, and/or sell copies of the Software, 
//     and to permit persons to whom the Software is furnished to do so, 
//     subject to the following conditions:
//     
//     The above copyright notice and 
//     this permission notice shall be included in all copies 
//     or substantial portions of the Software.
//     
//     THE SOFTWARE IS PROVIDED “AS IS”, 
//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//     
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
using StgSharp.Collections;

using System;
using System.Collections;
using System.Collections.Frozen;
using System.Collections.Generic;
using System.Linq;

namespace StgSharp.Script.Express
{
    public abstract class ExpSchema
    {

        public static ExpSchema BuiltinSchema
        {
            get => ExpSchema_Builtin.Only;
        }

        public string Name
        {
            get;
            internal set;
        }

        public abstract void LoadFromSource( ExpSchemaSource source );

        public abstract bool TryGetConst(
                                     string name,
                                     out ExpElementInstanceBase c );

        public abstract bool TryGetEntity( string name, out ExpEntitySource e );

        public abstract bool TryGetFunction(
                                     string name,
                                     out ExpFunctionSource f );

        public abstract bool TryGetRule( string name, out ExpRuleSource r );

        public abstract bool TryGetSchemaInclude(
                                     string name,
                                     out ExpSchema include );

        public abstract bool TryGetType( string name, out ExpTypeSource t );

        #pragma warning disable CS8618
        protected FrozenDictionary<string, ExpElementInstanceBase> ConstDict
        {
            get;
            set;
        }

        public IEnumerable<ExpSchema> IncludedSchema => IncludedSchema;

        protected FrozenDictionary<string, ExpEntitySource> EntityDict
        {
            get;
            set;
        }

        protected FrozenDictionary<string, ExpFunctionSource> FunctionDict
        {
            get;
            set;
        }

        protected ConcurrentStringHashMultiplexer StringMultiplexer => ExpressCompile.Multiplexer;

        protected FrozenDictionary<string, ExpRuleSource> RuleDict
        {
            get;
            set;
        }

        protected FrozenDictionary<string, ExpSchema> SchemaInclude
        {
            get;
            set;
        }

        protected FrozenDictionary<string, ExpTypeSource> TypeDict
        {
            get;
            set;
        }
#pragma warning restore CS8618
    }
}