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using System;
using System.Collections.Generic;
using System.IO;
using Emby.Server.Implementations.Data;
using Jellyfin.Data.Entities;
using Jellyfin.Server.Implementations;
using MediaBrowser.Controller;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using SQLitePCL.pretty;
namespace Jellyfin.Server.Migrations.Routines
{
/// <summary>
/// The migration routine for migrating the activity log database to EF Core.
/// </summary>
public class MigrateActivityLogDb : IMigrationRoutine
{
private const string DbFilename = "activitylog.db";
private readonly ILogger<MigrateActivityLogDb> _logger;
private readonly JellyfinDbProvider _provider;
private readonly IServerApplicationPaths _paths;
/// <summary>
/// Initializes a new instance of the <see cref="MigrateActivityLogDb"/> class.
/// </summary>
/// <param name="logger">The logger.</param>
/// <param name="paths">The server application paths.</param>
/// <param name="provider">The database provider.</param>
public MigrateActivityLogDb(ILogger<MigrateActivityLogDb> logger, IServerApplicationPaths paths, JellyfinDbProvider provider)
{
_logger = logger;
_provider = provider;
_paths = paths;
}
/// <inheritdoc/>
public Guid Id => Guid.Parse("3793eb59-bc8c-456c-8b9f-bd5a62a42978");
/// <inheritdoc/>
public string Name => "MigrateActivityLogDatabase";
/// <inheritdoc/>
public bool PerformOnNewInstall => false;
/// <inheritdoc/>
public void Perform()
{
var logLevelDictionary = new Dictionary<string, LogLevel>(StringComparer.OrdinalIgnoreCase)
{
{ "None", LogLevel.None },
{ "Trace", LogLevel.Trace },
{ "Debug", LogLevel.Debug },
{ "Information", LogLevel.Information },
{ "Info", LogLevel.Information },
{ "Warn", LogLevel.Warning },
{ "Warning", LogLevel.Warning },
{ "Error", LogLevel.Error },
{ "Critical", LogLevel.Critical }
};
var dataPath = _paths.DataPath;
using (var connection = SQLite3.Open(
Path.Combine(dataPath, DbFilename),
ConnectionFlags.ReadOnly,
null))
{
using var userDbConnection = SQLite3.Open(Path.Combine(dataPath, "users.db"), ConnectionFlags.ReadOnly, null);
_logger.LogWarning("Migrating the activity database may take a while, do not stop Jellyfin.");
using var dbContext = _provider.CreateContext();
var queryResult = connection.Query("SELECT * FROM ActivityLog ORDER BY Id");
// Make sure that the database is empty in case of failed migration due to power outages, etc.
dbContext.ActivityLogs.RemoveRange(dbContext.ActivityLogs);
dbContext.SaveChanges();
// Reset the autoincrement counter
dbContext.Database.ExecuteSqlRaw("UPDATE sqlite_sequence SET seq = 0 WHERE name = 'ActivityLog';");
dbContext.SaveChanges();
var newEntries = new List<ActivityLog>();
foreach (var entry in queryResult)
{
if (!logLevelDictionary.TryGetValue(entry[8].ToString(), out var severity))
{
severity = LogLevel.Trace;
}
var guid = Guid.Empty;
if (entry[6].SQLiteType != SQLiteType.Null && !Guid.TryParse(entry[6].ToString(), out guid))
{
// This is not a valid Guid, see if it is an internal ID from an old Emby schema
_logger.LogWarning("Invalid Guid in UserId column: {Guid}", entry[6].ToString());
using var statement = userDbConnection.PrepareStatement("SELECT guid FROM LocalUsersv2 WHERE Id=@Id");
statement.TryBind("@Id", entry[6].ToString());
foreach (var row in statement.Query())
{
if (row.Count > 0 && Guid.TryParse(row[0].ToString(), out guid))
{
// Successfully parsed a Guid from the user table.
break;
}
}
}
var newEntry = new ActivityLog(entry[1].ToString(), entry[4].ToString(), guid)
{
DateCreated = entry[7].ReadDateTime(),
LogSeverity = severity
};
if (entry[2].SQLiteType != SQLiteType.Null)
{
newEntry.Overview = entry[2].ToString();
}
if (entry[3].SQLiteType != SQLiteType.Null)
{
newEntry.ShortOverview = entry[3].ToString();
}
if (entry[5].SQLiteType != SQLiteType.Null)
{
newEntry.ItemId = entry[5].ToString();
}
newEntries.Add(newEntry);
}
dbContext.ActivityLogs.AddRange(newEntries);
dbContext.SaveChanges();
}
try
{
File.Move(Path.Combine(dataPath, DbFilename), Path.Combine(dataPath, DbFilename + ".old"));
var journalPath = Path.Combine(dataPath, DbFilename + "-journal");
if (File.Exists(journalPath))
{
File.Move(journalPath, Path.Combine(dataPath, DbFilename + ".old-journal"));
}
}
catch (IOException e)
{
_logger.LogError(e, "Error renaming legacy activity log database to 'activitylog.db.old'");
}
}
}
}
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