// /**
//  * File: HeaderContainer.cs
//  * Author: haraldwolff
//  *
//  * This file and it's content is copyrighted by the Author and / or copyright holder.
//  * Any use wihtout proper permission is illegal and may lead to legal actions.
//  *
//  *
//  **/
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using ln.http.io;
namespace ln.http.message
{
    public class HeaderContainer
    {
        Dictionary<string, Header> headers = new Dictionary<string, Header>();

        public HeaderContainer()
        {
        }
        public HeaderContainer(Stream stream):this(new UnbufferedStreamReader(stream))
        {
        }
        public HeaderContainer(TextReader reader)
        {
            List<String> headerLines = new List<string>();
            string currentline = reader.ReadLine();
            while (!currentline.Equals(string.Empty))
            {
                if (char.IsWhiteSpace(currentline[0]))
                {
                    headerLines[headerLines.Count - 1] = headerLines[headerLines.Count - 1] + currentline;
                }
                else
                {
                    headerLines.Add(currentline);
                }
                currentline = reader.ReadLine();
            }

            foreach (string headerLine in headerLines)
            { 
                Header header = new Header(headerLine);
                headers.Add(header.Name, header);
            }
        }

        public Header this[string name]
        {
            get => headers[name.ToUpper()];
        }

        public void Add(Header header)=> headers.Add(header.Name, header);

        public bool ContainsKey(string name) => headers.ContainsKey(name.ToUpper());
        public bool Contains(string name) => headers.ContainsKey(name.ToUpper());
        public string Get(string name) => this[name].Value;
        public void Set(string name,string value)
        {
            name = name.ToUpper();
            if (!headers.TryGetValue(name,out Header header))
            {
                header = new Header(name);
                headers.Add(name, header);
            }
            header.Value = value;
        }
        public void Remove(string name) => headers.Remove(name.ToUpper());

        public IEnumerable<string> Keys => headers.Keys;

    }
}