using System.Net.Mime;
using Jellyfin.Plugin.RecentlyAddedGuard.Core;
using Jellyfin.Plugin.RecentlyAddedGuard.Ledger;
using Jellyfin.Plugin.RecentlyAddedGuard.Tasks;
using MediaBrowser.Common.Api;
using MediaBrowser.Model.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace Jellyfin.Plugin.RecentlyAddedGuard.Api;

/// <summary>
/// Status and actions for the configuration page. Jellyfin adds plugin assemblies as MVC application parts,
/// so this controller is discovered automatically.
/// </summary>
[ApiController]
[Route("RecentlyAddedGuard")]
[Authorize(Policy = Policies.RequiresElevation)]
[Produces(MediaTypeNames.Application.Json)]
public class GuardController : ControllerBase
{
    private readonly LedgerStore _store;
    private readonly CorrectionLog _corrections;
    private readonly ITaskManager _taskManager;

    /// <summary>
    /// Initializes a new instance of the <see cref="GuardController"/> class.
    /// </summary>
    /// <param name="store">The ledger.</param>
    /// <param name="corrections">The correction log.</param>
    /// <param name="taskManager">The task manager.</param>
    public GuardController(LedgerStore store, CorrectionLog corrections, ITaskManager taskManager)
    {
        _store = store;
        _corrections = corrections;
        _taskManager = taskManager;
    }

    /// <summary>
    /// Gets ledger statistics and the most recent corrections.
    /// </summary>
    /// <response code="200">The status.</response>
    /// <returns>The status.</returns>
    [HttpGet("Status")]
    [ProducesResponseType(StatusCodes.Status200OK)]
    public ActionResult<GuardStatus> GetStatus()
    {
        var statistics = _store.GetStatistics();
        return new GuardStatus
        {
            LedgerEntries = statistics.Entries,
            LiveEntries = statistics.LiveEntries,
            RemovedEntries = statistics.RemovedEntries,
            CorrectionsSinceStart = _corrections.CorrectionsSinceStart,
            DryRunDetectionsSinceStart = _corrections.DryRunDetectionsSinceStart,
            SeedCompleted = _store.SeedCompleted,
            LastSyncUtc = _store.LastSyncUtc,
            DryRun = Plugin.CurrentConfiguration.DryRun,
            RecentCorrections = _corrections.GetRecent()
        };
    }

    /// <summary>
    /// Queues the scheduled task "Ledger synchronisieren".
    /// </summary>
    /// <response code="204">The task was queued (or is already running).</response>
    /// <returns>No content.</returns>
    [HttpPost("Sync")]
    [ProducesResponseType(StatusCodes.Status204NoContent)]
    public ActionResult StartSync()
    {
        _taskManager.QueueIfNotRunning<SyncLedgerTask>();
        return NoContent();
    }
}