/*************************************************************************
 * ModernUO                                                              *
 * Copyright (C) 2019-2021 - ModernUO Development Team                   *
 * Email: hi@modernuo.com                                                *
 * File: SourceGeneration.Class.cs                                       *
 *                                                                       *
 * This program is free software: you can redistribute it and/or modify  *
 * it under the terms of the GNU General Public License as published by  *
 * the Free Software Foundation, either version 3 of the License, or     *
 * (at your option) any later version.                                   *
 *                                                                       *
 * You should have received a copy of the GNU General Public License     *
 * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 *************************************************************************/

using System.Collections.Immutable;
using System.Text;
using Microsoft.CodeAnalysis;

namespace SerializationGenerator
{
    public static partial class SourceGeneration
    {
        public static void GenerateClassStart(
            this StringBuilder source,
            string className,
            string indent,
            ImmutableArray<ITypeSymbol> interfaces,
            Accessibility accessor = Accessibility.Public,
            bool isPartial = true
        )
        {
            source.Append($"{indent}{accessor.ToFriendlyString()} {(isPartial ? "partial " : "")}class {className}");
            if (!interfaces.IsEmpty)
            {
                source.Append(" : ");
                for (var i = 0; i < interfaces.Length; i++)
                {
                    source.Append(interfaces[i].ToDisplayString());
                    if (i < interfaces.Length - 1)
                    {
                        source.Append(", ");
                    }
                }
            }

            source.AppendLine($"\n{indent}{{");
        }

        public static void GenerateClassEnd(this StringBuilder source, string indent)
        {
            source.AppendLine($"{indent}}}");
        }

        // TODO: Generalize this to any field using dynamic indentation
        public static void GenerateClassField(
            this StringBuilder source,
            Accessibility accessors,
            InstanceModifier instance,
            string type,
            string variableName,
            string value
        )
        {
            var instanceStr = instance == InstanceModifier.None ? "" : $"{instance.ToFriendlyString()} ";
            var accessorStr = accessors == Accessibility.NotApplicable ? "" : $"{accessors.ToFriendlyString()} ";
            var valueStr = value == null ? "" : $" = {value}";
            source.AppendLine($"        {accessorStr}{instanceStr}{type} {variableName}{valueStr};");
        }
    }
}
