using System;
using System.Collections.Generic;
using System.Text;

namespace ScrewTurn.Wiki.SearchEngine {

	/// <summary>
	/// Represents a document structured for easy dumped on disk or database.
	/// </summary>
	/// <remarks>The class is <b>not thread-safe</b>.</remarks>
	public class DumpedDocument {

		/// <summary>
		/// The document unique ID.
		/// </summary>
		protected uint id;
		/// <summary>
		/// The document unique name.
		/// </summary>
		protected string name;
		/// <summary>
		/// The document title.
		/// </summary>
		protected string title;
		/// <summary>
		/// The document type tag.
		/// </summary>
		protected string typeTag;
		/// <summary>
		/// The document date/time.
		/// </summary>
		protected DateTime dateTime;

		/// <summary>
		/// Initializes a new instance of the <see cref="DumpedDocument" /> class.
		/// </summary>
		/// <param name="id">The document unique ID.</param>
		/// <param name="name">The document unique name.</param>
		/// <param name="title">The document title.</param>
		/// <param name="typeTag">The document type tag.</param>
		/// <param name="dateTime">The document date/time.</param>
		/// <exception cref="ArgumentNullException">If <paramref name="name"/>, <paramref name="title"/> or <paramref name="typeTag"/> are <c>null</c>.</exception>
		/// <exception cref="ArgumentException">If <paramref name="name"/>, <paramref name="title"/> or <paramref name="typeTag"/> are empty.</exception>
		public DumpedDocument(uint id, string name, string title, string typeTag, DateTime dateTime) {
			if(name == null) throw new ArgumentNullException("name");
			if(title == null) throw new ArgumentNullException("title");
			if(typeTag == null) throw new ArgumentNullException("typeTag");

			if(name.Length == 0) throw new ArgumentException("Name cannot be empty", "name");
			if(title.Length == 0) throw new ArgumentException("Title cannot be empty", "title");
			if(typeTag.Length == 0) throw new ArgumentException("Type Tag cannot be empty", "typeTag");

			this.id = id;
			this.name = name;
			this.title = title;
			this.typeTag = typeTag;
			this.dateTime = dateTime;
		}

		/// <summary>
		/// Initializes a new instance of the <see cref="DumpedDocument" /> class.
		/// </summary>
		/// <param name="document">The document do wrap for dumping.</param>
		/// <exception cref="ArgumentNullException">If <paramref name="document"/> is <c>null</c>.</exception>
		public DumpedDocument(IDocument document) {
			if(document == null) throw new ArgumentNullException("document");

			id = document.ID;
			name = document.Name;
			title = document.Title;
			typeTag = document.TypeTag;
			dateTime = document.DateTime;
		}

		/// <summary>
		/// Gets or sets the document unique ID.
		/// </summary>
		public uint ID {
			get { return id; }
			set { id = value; }
		}

		/// <summary>
		/// Gets the document unique name.
		/// </summary>
		public string Name {
			get { return name; }
		}

		/// <summary>
		/// Gets the title of the document.
		/// </summary>
		public string Title {
			get { return title; }
		}

		/// <summary>
		/// Gets the document type tag.
		/// </summary>
		public string TypeTag {
			get { return typeTag; }
		}

		/// <summary>
		/// Gets the document date/time.
		/// </summary>
		public DateTime DateTime {
			get { return dateTime; }
		}

	}

}