using MoonlightServers.Daemon.Models;
using MoonlightServers.Daemon.ServerSystem.Abstractions;

namespace MoonlightServers.Daemon.ServerSystem.Implementations.Local;

public class LocalRuntimeStorageService : IRuntimeStorageService
{
    private const string HostPathTemplate = "./mldaemon/runtime/{0}";

    public Task<IRuntimeStorage?> FindAsync(string id)
    {
        var path = string.Format(HostPathTemplate, id);

        if (!Directory.Exists(path))
            return Task.FromResult<IRuntimeStorage?>(null);

        return Task.FromResult<IRuntimeStorage?>(new LocalRuntimeStorage(path));
    }

    public Task<IRuntimeStorage> CreateAsync(string id, RuntimeConfiguration configuration)
    {
        var path = string.Format(HostPathTemplate, id);

        Directory.CreateDirectory(path);

        return Task.FromResult<IRuntimeStorage>(new LocalRuntimeStorage(path));
    }

    public Task UpdateAsync(IRuntimeStorage runtimeStorage, RuntimeConfiguration configuration)
     => Task.CompletedTask;

    public Task DeleteAsync(IRuntimeStorage runtimeStorage)
    {
        if (runtimeStorage is not LocalRuntimeStorage localRuntimeStorage)
        {
            throw new ArgumentException(
                $"You cannot delete runtime storages which haven't been created by {nameof(LocalRuntimeStorageService)}"
            );
        }
        
        if(Directory.Exists(localRuntimeStorage.HostPath))
            Directory.Delete(localRuntimeStorage.HostPath, true);
        
        return Task.CompletedTask;
    }
}