namespace PersistentMap.Tests;
using PersistentMap;
using System.Linq;
using Xunit;
public class StandardStrategy
{
    private static string GenerateRandomString(int length, Random rnd)
    {
        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
        return new string(Enumerable.Repeat(chars, length).Select(s => s[rnd.Next(s.Length)]).ToArray());
    }

    [Fact]
    public void Setup()
    {
        var N = 1000;
        var _stdStrategy = new StandardStrategy<string>();
        var _uniStrategy = new UnicodeStrategy();
        var rnd = new Random(42);
        var StringLength = 10;
        // Build random strings
        var _allKeys = Enumerable.Range(0, N).Select(_ => GenerateRandomString(StringLength, rnd)).Distinct().ToArray();
        
        // Regenerate if Distinct() reduced array size (highly unlikely with length 8/50, but safe)
        while (_allKeys.Length < N)
        {
            _allKeys = _allKeys.Concat(new[] { GenerateRandomString(StringLength, rnd) }).Distinct().ToArray();
        }

        var transStd = BaseOrderedMap<string, int, StandardStrategy<string>>.CreateTransient(_stdStrategy);
        var transUni = BaseOrderedMap<string, int, UnicodeStrategy>.CreateTransient(_uniStrategy);
        for (int i = 0; i < _allKeys.Length; i++)
        {
            transStd.Set(_allKeys[i], i);
            transUni.Set(_allKeys[i], i);
        }
    }
}