//
// HtmlHostPageBuilder.cs
//
// Author:
//       Carsten Sonne Larsen <cs@innolan.dk>
//
// Copyright (c) 2013 Carsten Sonne Larsen
//
// 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 System;
using System.IO;
using System.Linq;
using System.Collections.Generic;
using Ntp.Analyzer.Export;
using Ntp.Analyzer.Render;
using Ntp.Analyzer.Render.Host;
using Ntp.Analyzer.Config.Page;
using Ntp.Analyzer.Objects;
using Ntp.Analyzer.Data;

namespace Ntp.Analyzer.Page
{
	/// <summary>
	/// Build a HTML status page showing the state of a hosted NTP server.
	/// </summary>
	public sealed class DefaultHostPageBuilder : PageBuilderBase
	{
        /// <summary>
        /// Initializes a new instance of the <see cref="Ntp.Analyzer.Page.DefaultHostPageBuilder"/> class.
        /// </summary>
        /// <param name="config">Config.</param>
        /// <param name="lines">Lines.</param>
        public DefaultHostPageBuilder (
			HostPageConfiguration config,
            IEnumerable<StatusLine> lines)
        {
            this.config = config;
            this.lines = new List<StatusLine>(lines);
        }

        private readonly HostPageConfiguration config;
        private readonly List<StatusLine> lines;

        public override IEnumerable<StreamDestination> Destinations {
            get { return config.Destinations; }
        }

		public override Stream Generate ()
		{
            Host host = DataFace.Instance.Hosts.Single (h => h.Id == config.HostId);

			// Create page and table
            // TODO: Calculate refresh time till next interval.
            DefaultHostPageRender hostPage = new DefaultHostPageRender (config, host.Ip, config.Frequency * 60);
			
			DefaultHostTableRender statusTable = new DefaultHostTableRender (config.WebPath);
			hostPage.Add (statusTable);
			
			// Create table content
			foreach (StatusLine line in lines) {
				statusTable.Add (new HostLineRender (line, config.PeerPage));
			}
		
			// Create graph links
			hostPage.Add (new DefaultHostGraphRender (config.WebPath, config.Graphs));
		
			// Generate HTML
			HtmlRenderer htmlRender = new HtmlRenderer (hostPage);
			string html = htmlRender.Render ();
			
			return ToStream (html);
		}
	}
}