using Nonemm.Core;
using Nonemm.Storage;

namespace Nonemm.Session.Tests;

/// A log store that keeps everything in memory, so session tests do not need a
/// file. It keeps the one rule the sqlite store enforces: no two contacts with
/// the same call in the same second.
public sealed class FakeLogStore : LogStore
{
    private readonly List<Qso> qsos = [];
    private readonly List<ContestInstance> contests = [];

    public IReadOnlyList<ContestInstance> Contests() => contests;

    public ContestInstance? Contest(int contestNumber) =>
        contests.FirstOrDefault(c => c.ContestNumber == contestNumber);

    public ContestInstance AddContest(ContestInstance instance)
    {
        ContestInstance stored = instance with { ContestNumber = contests.Count + 1 };
        contests.Add(stored);
        return stored;
    }

    public void UpdateContest(ContestInstance instance)
    {
        int at = contests.FindIndex(c => c.ContestNumber == instance.ContestNumber);
        contests[at] = instance;
    }

    public IReadOnlyList<Qso> Qsos(int contestNumber) =>
        qsos.Where(q => q.ContestNumber == contestNumber).OrderBy(q => q.TimestampUtc).ToList();

    public Qso Add(Qso qso)
    {
        Qso candidate = qso;
        while (qsos.Any(q => q.Call.Text == candidate.Call.Text && q.TimestampUtc == candidate.TimestampUtc))
        {
            candidate = candidate with { TimestampUtc = candidate.TimestampUtc.AddSeconds(1) };
        }
        qsos.Add(candidate);
        return candidate;
    }

    public void Update(Qso qso)
    {
        int at = qsos.FindIndex(q => q.Id == qso.Id);
        qsos[at] = qso;
    }

    public void Delete(string id) => qsos.RemoveAll(q => q.Id == id);

    public void Dispose()
    {
    }
}