using Jtr.Parsing;

namespace Jtr.Tools;

public static partial class JsonPath
{
    public class Lexer : Lexer<JsonPathToken>
    {
        public static readonly Lexer Default = new();

        protected override JsonPathToken EndOfSource => JsonPathToken.EndOfSource;

        public Lexer()
        {
            Rules =
            [
                DefaultRule.NewLine,
                DefaultRule.Number(JsonPathToken.Number),
                DefaultRule.Identifier(JsonPathToken.Identifier),
                DefaultRule.DoubleQuoteString(JsonPathToken.String),

                ctx => DefaultRule.IgnoreWhitespace(ctx),
                ctx => Match(ctx, JsonPathToken.False, "false"),
                ctx => Match(ctx, JsonPathToken.True, "true"),
                ctx => Match(ctx, JsonPathToken.Null, "null"),
                ctx => Match(ctx, JsonPathToken.DotDot, ".."),
                ctx => Match(ctx, JsonPathToken.DollarSign, '$'),
                ctx => Match(ctx, JsonPathToken.Asterisk, '*'),
                ctx => Match(ctx, JsonPathToken.Dot, '.'),
                ctx => Match(ctx, JsonPathToken.Minus, '-'),
                ctx => Match(ctx, JsonPathToken.Colon, ':'),
                ctx => Match(ctx, JsonPathToken.LeftBracket, '['),
                ctx => Match(ctx, JsonPathToken.Comma, ','),
                ctx => Match(ctx, JsonPathToken.RightBracket, ']'),
            ];
        }
    }
}