using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using AniNIX.Shared;

namespace AniNIX.TheRaven {

	public static class RavenConfigure {

	/// <summary>
	/// Create a new list from the line-delimited entries in a file
	/// </summary>
	/// <param name=filename> the file to read </param>
	/// <returns> A List of Strings containing the lines.</returns>
	public static List<String> ReadLineDelimitedFile(String filename) {
		String line = null;
		int count = 0;
		//Read all the file to join.
		ReportMessage.Log(Verbosity.Verbose,String.Format("Reading {0}",filename)); //Path.GetFileName(filename)));
		List<String> newEntries = new List<String>();
		StreamReader fileReader = new StreamReader(filename);
		line = fileReader.ReadLine();
		while (line != null) {
		if (line.Length < 1) {
			line = fileReader.ReadLine();
			continue;
		}
		line = line.Trim();
		if (line[0] == '#') {
			line = fileReader.ReadLine();
			continue;
		} //Skip lines starting with a #
		String[] byHash = line.Split('#'); //Ignore everything after a #
		newEntries.Add(byHash[0]);
		count++;
		ReportMessage.Log(Verbosity.VeryVerbose,String.Format("Added entry {0} from {1}",line,Path.GetFileName(filename)));
		line = fileReader.ReadLine();
		} 
		fileReader.Close();
		ReportMessage.Log(Verbosity.VeryVerbose,String.Format("Found {0} newEntries.",newEntries.Count));
		return newEntries;
	}

	/// <summary>
	/// Get the String[] of lines in a file -- use this for random performance
	/// </summary>
	/// <param name=filename> the file to read </param>
	/// <returns> A String[] </returns>
	public static String[] ReadLineDelimitedFileToArr(String filename) {
		return RavenConfigure.ReadLineDelimitedFile(filename).ToArray();
	}

	/// <summary>
	/// Read the first line from a file -- this is useful for allowing configuration of single strings.
	/// </summary>
	/// <param name=filename> the file to read </param>
	/// <returns>The first line as a String</returns>
	public static String ReadFirstLineFromFile(String filename) {
		StreamReader fileReader = new StreamReader(filename);
		String readString = fileReader.ReadLine();
		fileReader.Close();
		return readString;
	}
	}
}