562 lines
24 KiB
C#
562 lines
24 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using AudibleApi;
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using AudibleUtilities;
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using DataLayer;
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using Dinah.Core;
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using DtoImporterService;
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using LibationFileManager;
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using Serilog;
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using static DtoImporterService.PerfLogger;
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namespace ApplicationServices
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{
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public static class LibraryCommands
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{
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public static event EventHandler<int> ScanBegin;
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public static event EventHandler ScanEnd;
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public static bool Scanning { get; private set; }
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private static object _lock { get; } = new();
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static LibraryCommands()
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{
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ScanBegin += (_, __) => Scanning = true;
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ScanEnd += (_, __) => Scanning = false;
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}
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public static async Task<List<LibraryBook>> FindInactiveBooks(Func<Account, Task<ApiExtended>> apiExtendedfunc, IEnumerable<LibraryBook> existingLibrary, params Account[] accounts)
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{
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logRestart();
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lock (_lock)
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{
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if (Scanning)
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return new();
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}
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ScanBegin?.Invoke(null, accounts.Length);
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//These are the minimum response groups required for the
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//library scanner to pass all validation and filtering.
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var libraryOptions = new LibraryOptions
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{
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ResponseGroups
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= LibraryOptions.ResponseGroupOptions.ProductAttrs
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| LibraryOptions.ResponseGroupOptions.ProductDesc
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| LibraryOptions.ResponseGroupOptions.Relationships
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};
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if (accounts is null || accounts.Length == 0)
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return new List<LibraryBook>();
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try
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{
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logTime($"pre {nameof(scanAccountsAsync)} all");
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var libraryItems = await scanAccountsAsync(apiExtendedfunc, accounts, libraryOptions);
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logTime($"post {nameof(scanAccountsAsync)} all");
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var totalCount = libraryItems.Count;
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Log.Logger.Information($"GetAllLibraryItems: Total count {totalCount}");
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var missingBookList = existingLibrary.Where(b => !libraryItems.Any(i => i.DtoItem.Asin == b.Book.AudibleProductId)).ToList();
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return missingBookList;
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}
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catch (AudibleApi.Authentication.LoginFailedException lfEx)
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{
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lfEx.SaveFiles(Configuration.Instance.LibationFiles);
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// nuget Serilog.Exceptions would automatically log custom properties
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// However, it comes with a scary warning when used with EntityFrameworkCore which I'm not yet ready to implement:
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// https://github.com/RehanSaeed/Serilog.Exceptions
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// work-around: use 3rd param. don't just put exception object in 3rd param -- info overload: stack trace, etc
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Log.Logger.Error(lfEx, "Error scanning library. Login failed. {@DebugInfo}", new
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{
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lfEx.RequestUrl,
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ResponseStatusCodeNumber = (int)lfEx.ResponseStatusCode,
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ResponseStatusCodeDesc = lfEx.ResponseStatusCode,
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lfEx.ResponseInputFields,
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lfEx.ResponseBodyFilePaths
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});
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throw;
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}
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catch (Exception ex)
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{
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Log.Logger.Error(ex, "Error scanning library");
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throw;
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}
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finally
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{
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stop();
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var putBreakPointHere = logOutput;
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ScanEnd?.Invoke(null, null);
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}
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}
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#region FULL LIBRARY scan and import
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public static async Task<(int totalCount, int newCount)> ImportAccountAsync(Func<Account, Task<ApiExtended>> apiExtendedfunc, params Account[] accounts)
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{
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logRestart();
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if (accounts is null || accounts.Length == 0)
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return (0, 0);
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try
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{
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lock (_lock)
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{
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if (Scanning)
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return (0, 0);
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}
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ScanBegin?.Invoke(null, accounts.Length);
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logTime($"pre {nameof(scanAccountsAsync)} all");
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var libraryOptions = new LibraryOptions
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{
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ResponseGroups = LibraryOptions.ResponseGroupOptions.ALL_OPTIONS,
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ImageSizes = LibraryOptions.ImageSizeOptions._500 | LibraryOptions.ImageSizeOptions._1215
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};
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var importItems = await scanAccountsAsync(apiExtendedfunc, accounts, libraryOptions);
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logTime($"post {nameof(scanAccountsAsync)} all");
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var totalCount = importItems.Count;
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Log.Logger.Information($"GetAllLibraryItems: Total count {totalCount}");
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if (totalCount == 0)
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return default;
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Log.Logger.Information("Begin scan for orphaned episode parents");
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var newParents = await findAndAddMissingParents(accounts);
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Log.Logger.Information($"Orphan episode scan complete. New parents count {newParents}");
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if (newParents >= 0)
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{
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//If any episodes are still orphaned, their series have been
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//removed from the catalog and we'll never be able to find them.
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//only do this if findAndAddMissingParents returned >= 0. If it
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//returned < 0, an error happened and there's still a chance that
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//a future successful run will find missing parents.
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removedOrphanedEpisodes();
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}
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Log.Logger.Information("Begin long-running import");
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logTime($"pre {nameof(importIntoDbAsync)}");
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var newCount = await importIntoDbAsync(importItems);
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logTime($"post {nameof(importIntoDbAsync)}");
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Log.Logger.Information($"Import complete. New count {newCount}");
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return (totalCount, newCount);
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}
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catch (AudibleApi.Authentication.LoginFailedException lfEx)
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{
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lfEx.SaveFiles(Configuration.Instance.LibationFiles);
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// nuget Serilog.Exceptions would automatically log custom properties
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// However, it comes with a scary warning when used with EntityFrameworkCore which I'm not yet ready to implement:
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// https://github.com/RehanSaeed/Serilog.Exceptions
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// work-around: use 3rd param. don't just put exception object in 3rd param -- info overload: stack trace, etc
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Log.Logger.Error(lfEx, "Error importing library. Login failed. {@DebugInfo}", new
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{
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lfEx.RequestUrl,
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ResponseStatusCodeNumber = (int)lfEx.ResponseStatusCode,
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ResponseStatusCodeDesc = lfEx.ResponseStatusCode,
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lfEx.ResponseInputFields,
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lfEx.ResponseBodyFilePaths
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});
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throw;
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}
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catch (Exception ex)
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{
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Log.Logger.Error(ex, "Error importing library");
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throw;
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}
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finally
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{
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stop();
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var putBreakPointHere = logOutput;
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ScanEnd?.Invoke(null, null);
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}
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}
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private static async Task<List<ImportItem>> scanAccountsAsync(Func<Account, Task<ApiExtended>> apiExtendedfunc, Account[] accounts, LibraryOptions libraryOptions)
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{
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var tasks = new List<Task<List<ImportItem>>>();
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foreach (var account in accounts)
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{
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// get APIs in serial b/c of logins. do NOT move inside of parallel (Task.WhenAll)
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var apiExtended = await apiExtendedfunc(account);
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// add scanAccountAsync as a TASK: do not await
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tasks.Add(scanAccountAsync(apiExtended, account, libraryOptions));
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}
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// import library in parallel
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var arrayOfLists = await Task.WhenAll(tasks);
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var importItems = arrayOfLists.SelectMany(a => a).ToList();
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return importItems;
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}
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private static async Task<List<ImportItem>> scanAccountAsync(ApiExtended apiExtended, Account account, LibraryOptions libraryOptions)
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{
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ArgumentValidator.EnsureNotNull(account, nameof(account));
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Log.Logger.Information("ImportLibraryAsync. {@DebugInfo}", new
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{
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Account = account?.MaskedLogEntry ?? "[null]"
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});
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logTime($"pre scanAccountAsync {account.AccountName}");
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var dtoItems = await apiExtended.GetLibraryValidatedAsync(libraryOptions, Configuration.Instance.ImportEpisodes);
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logTime($"post scanAccountAsync {account.AccountName} qty: {dtoItems.Count}");
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return dtoItems.Select(d => new ImportItem { DtoItem = d, AccountId = account.AccountId, LocaleName = account.Locale?.Name }).ToList();
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}
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private static async Task<int> importIntoDbAsync(List<ImportItem> importItems)
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{
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logTime("importIntoDbAsync -- pre db");
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using var context = DbContexts.GetContext();
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var libraryBookImporter = new LibraryBookImporter(context);
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var newCount = await Task.Run(() => libraryBookImporter.Import(importItems));
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logTime("importIntoDbAsync -- post Import()");
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int qtyChanges = SaveContext(context);
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logTime("importIntoDbAsync -- post SaveChanges");
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// this is any changes at all to the database, not just new books
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if (qtyChanges > 0)
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await Task.Run(() => finalizeLibrarySizeChange());
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logTime("importIntoDbAsync -- post finalizeLibrarySizeChange");
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return newCount;
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}
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static void removedOrphanedEpisodes()
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{
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using var context = DbContexts.GetContext();
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try
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{
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var orphanedEpisodes =
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context
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.GetLibrary_Flat_NoTracking(includeParents: true)
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.FindOrphanedEpisodes();
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context.LibraryBooks.RemoveRange(orphanedEpisodes);
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context.Books.RemoveRange(orphanedEpisodes.Select(lb => lb.Book));
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}
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catch (Exception ex)
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{
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Serilog.Log.Logger.Error(ex, "An error occurred while trying to remove orphaned episodes from the database");
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}
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}
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static async Task<int> findAndAddMissingParents(Account[] accounts)
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{
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using var context = DbContexts.GetContext();
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var library = context.GetLibrary_Flat_NoTracking(includeParents: true);
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try
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{
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var orphanedEpisodes = library.FindOrphanedEpisodes().ToList();
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if (!orphanedEpisodes.Any())
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return -1;
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var orphanedSeries =
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orphanedEpisodes
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.SelectMany(lb => lb.Book.SeriesLink)
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.DistinctBy(s => s.Series.AudibleSeriesId)
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.ToList();
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// The Catalog endpoint does not require authentication.
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var api = new ApiUnauthenticated(accounts[0].Locale);
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var seriesParents = orphanedSeries.Select(o => o.Series.AudibleSeriesId).ToList();
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var items = await api.GetCatalogProductsAsync(seriesParents, CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
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List<ImportItem> newParentsImportItems = new();
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foreach (var sp in orphanedSeries)
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{
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var seriesItem = items.First(i => i.Asin == sp.Series.AudibleSeriesId);
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if (seriesItem.Relationships is null)
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continue;
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var episode = orphanedEpisodes.First(l => l.Book.AudibleProductId == sp.Book.AudibleProductId);
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seriesItem.PurchaseDate = new DateTimeOffset(episode.DateAdded);
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seriesItem.Series = new AudibleApi.Common.Series[]
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{
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new AudibleApi.Common.Series{ Asin = seriesItem.Asin, Title = seriesItem.TitleWithSubtitle, Sequence = "-1"}
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};
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newParentsImportItems.Add(new ImportItem { DtoItem = seriesItem, AccountId = episode.Account, LocaleName = episode.Book.Locale });
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}
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var newCount = new LibraryBookImporter(context)
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.Import(newParentsImportItems);
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await context.SaveChangesAsync();
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return newCount;
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}
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catch (Exception ex)
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{
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Serilog.Log.Logger.Error(ex, "An error occurred while trying to scan for orphaned episode parents.");
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return -1;
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}
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}
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public static int SaveContext(LibationContext context)
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{
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try
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{
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return context.SaveChanges();
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}
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catch (Microsoft.EntityFrameworkCore.DbUpdateException ex)
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{
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// DbUpdateException exceptions can wreck serilog. Condense it until we can find a better solution. I suspect the culprit is the "WithExceptionDetails" serilog extension
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static string format(Exception ex) => $"\r\nMessage: {ex.Message}\r\nStack Trace:\r\n{ex.StackTrace}";
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var msg = "Microsoft.EntityFrameworkCore.DbUpdateException";
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if (ex.InnerException is null)
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throw new Exception($"{msg}{format(ex)}");
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throw new Exception(
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$"{msg}{format(ex)}",
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new Exception($"Inner Exception{format(ex.InnerException)}"));
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}
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}
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#endregion
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#region remove/restore books
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public static Task<int> RemoveBooksAsync(List<string> idsToRemove) => Task.Run(() => removeBooks(idsToRemove));
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public static int RemoveBook(string idToRemove) => removeBooks(new() { idToRemove });
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private static int removeBooks(List<string> idsToRemove)
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{
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try
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{
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if (idsToRemove is null || !idsToRemove.Any())
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return 0;
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using var context = DbContexts.GetContext();
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var libBooks = context.GetLibrary_Flat_NoTracking();
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var removeLibraryBooks = libBooks.Where(lb => idsToRemove.Contains(lb.Book.AudibleProductId)).ToList();
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// Attach() NoTracking entities before SaveChanges()
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foreach (var lb in removeLibraryBooks)
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{
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lb.IsDeleted = true;
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context.Attach(lb).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
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}
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var qtyChanges = context.SaveChanges();
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if (qtyChanges > 0)
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finalizeLibrarySizeChange();
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return qtyChanges;
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}
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catch (Exception ex)
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{
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Log.Logger.Error(ex, "Error removing books");
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throw;
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}
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}
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public static int RestoreBooks(this List<LibraryBook> libraryBooks)
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{
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try
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{
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if (libraryBooks is null || !libraryBooks.Any())
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return 0;
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using var context = DbContexts.GetContext();
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// Attach() NoTracking entities before SaveChanges()
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foreach (var lb in libraryBooks)
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{
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lb.IsDeleted = false;
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context.Attach(lb).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
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}
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var qtyChanges = context.SaveChanges();
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if (qtyChanges > 0)
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finalizeLibrarySizeChange();
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return qtyChanges;
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}
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catch (Exception ex)
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{
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Log.Logger.Error(ex, "Error restoring books");
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throw;
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}
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}
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#endregion
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// call this whenever books are added or removed from library
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private static void finalizeLibrarySizeChange() => LibrarySizeChanged?.Invoke(null, null);
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/// <summary>Occurs when the size of the library changes. ie: books are added or removed</summary>
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public static event EventHandler LibrarySizeChanged;
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/// <summary>
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/// Occurs when the size of the library does not change but book(s) details do. Especially when <see cref="UserDefinedItem.Tags"/>, <see cref="UserDefinedItem.BookStatus"/>, or <see cref="UserDefinedItem.PdfStatus"/> changed values are successfully persisted.
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/// </summary>
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public static event EventHandler<IEnumerable<Book>> BookUserDefinedItemCommitted;
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#region Update book details
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public static int UpdateUserDefinedItem(
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this Book book,
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string tags = null,
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LiberatedStatus? bookStatus = null,
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LiberatedStatus? pdfStatus = null,
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Rating rating = null)
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=> new[] { book }.UpdateUserDefinedItem(tags, bookStatus, pdfStatus, rating);
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public static int UpdateUserDefinedItem(
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this IEnumerable<Book> books,
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string tags = null,
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LiberatedStatus? bookStatus = null,
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LiberatedStatus? pdfStatus = null,
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Rating rating = null)
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=> updateUserDefinedItem(
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books,
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udi => {
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// blank tags are expected. null tags are not
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if (tags is not null)
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udi.Tags = tags;
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if (bookStatus.HasValue)
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udi.BookStatus = bookStatus.Value;
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// method handles null logic
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udi.SetPdfStatus(pdfStatus);
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if (rating is not null)
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udi.Rating = rating;
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});
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public static int UpdateBookStatus(this Book book, LiberatedStatus bookStatus)
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=> book.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
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public static int UpdateBookStatus(this IEnumerable<Book> books, LiberatedStatus bookStatus)
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=> books.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
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public static int UpdateBookStatus(this LibraryBook libraryBook, LiberatedStatus bookStatus)
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=> libraryBook.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
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public static int UpdateBookStatus(this IEnumerable<LibraryBook> libraryBooks, LiberatedStatus bookStatus)
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=> libraryBooks.UpdateUserDefinedItem(udi => udi.BookStatus = bookStatus);
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public static int UpdatePdfStatus(this Book book, LiberatedStatus pdfStatus)
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=> book.UpdateUserDefinedItem(udi => udi.SetPdfStatus(pdfStatus));
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public static int UpdatePdfStatus(this IEnumerable<Book> books, LiberatedStatus pdfStatus)
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=> books.UpdateUserDefinedItem(udi => udi.SetPdfStatus(pdfStatus));
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public static int UpdatePdfStatus(this LibraryBook libraryBook, LiberatedStatus pdfStatus)
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=> libraryBook.UpdateUserDefinedItem(udi => udi.SetPdfStatus(pdfStatus));
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public static int UpdatePdfStatus(this IEnumerable<LibraryBook> libraryBooks, LiberatedStatus pdfStatus)
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=> libraryBooks.UpdateUserDefinedItem(udi => udi.SetPdfStatus(pdfStatus));
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public static int UpdateTags(this Book book, string tags)
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=> book.UpdateUserDefinedItem(udi => udi.Tags = tags);
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public static int UpdateTags(this IEnumerable<Book> books, string tags)
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=> books.UpdateUserDefinedItem(udi => udi.Tags = tags);
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public static int UpdateTags(this LibraryBook libraryBook, string tags)
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=> libraryBook.UpdateUserDefinedItem(udi => udi.Tags = tags);
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public static int UpdateTags(this IEnumerable<LibraryBook> libraryBooks, string tags)
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=> libraryBooks.UpdateUserDefinedItem(udi => udi.Tags = tags);
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public static int UpdateUserDefinedItem(this LibraryBook libraryBook, Action<UserDefinedItem> action)
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=> libraryBook.Book.updateUserDefinedItem(action);
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public static int UpdateUserDefinedItem(this IEnumerable<LibraryBook> libraryBooks, Action<UserDefinedItem> action)
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=> libraryBooks.Select(lb => lb.Book).updateUserDefinedItem(action);
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public static int UpdateUserDefinedItem(this Book book, Action<UserDefinedItem> action) => book.updateUserDefinedItem(action);
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public static int UpdateUserDefinedItem(this IEnumerable<Book> books, Action<UserDefinedItem> action) => books.updateUserDefinedItem(action);
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private static int updateUserDefinedItem(this Book book, Action<UserDefinedItem> action) => new[] { book }.updateUserDefinedItem(action);
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private static int updateUserDefinedItem(this IEnumerable<Book> books, Action<UserDefinedItem> action)
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{
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try
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{
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if (books is null || !books.Any())
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return 0;
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foreach (var book in books)
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action?.Invoke(book.UserDefinedItem);
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using var context = DbContexts.GetContext();
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// Attach() NoTracking entities before SaveChanges()
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foreach (var book in books)
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{
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context.Attach(book.UserDefinedItem).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
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context.Attach(book.UserDefinedItem.Rating).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
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}
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var qtyChanges = context.SaveChanges();
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if (qtyChanges > 0)
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BookUserDefinedItemCommitted?.Invoke(null, books);
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return qtyChanges;
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}
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catch (Exception ex)
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|
{
|
|
Log.Logger.Error(ex, $"Error updating {nameof(Book.UserDefinedItem)}");
|
|
throw;
|
|
}
|
|
}
|
|
#endregion
|
|
|
|
// must be here instead of in db layer due to AaxcExists
|
|
public static LiberatedStatus Liberated_Status(Book book)
|
|
=> book.Audio_Exists() ? book.UserDefinedItem.BookStatus
|
|
: AudibleFileStorage.AaxcExists(book.AudibleProductId) ? LiberatedStatus.PartialDownload
|
|
: LiberatedStatus.NotLiberated;
|
|
|
|
// exists here for feature predictability. It makes sense for this to be where Liberated_Status is
|
|
public static LiberatedStatus? Pdf_Status(Book book) => book.UserDefinedItem.PdfStatus;
|
|
|
|
// below are queries, not commands. maybe I should make a LibraryQueries. except there's already one of those...
|
|
|
|
public record LibraryStats(int booksFullyBackedUp, int booksDownloadedOnly, int booksNoProgress, int booksError, int pdfsDownloaded, int pdfsNotDownloaded)
|
|
{
|
|
public int PendingBooks => booksNoProgress + booksDownloadedOnly;
|
|
public bool HasPendingBooks => PendingBooks > 0;
|
|
|
|
public bool HasBookResults => 0 < (booksFullyBackedUp + booksDownloadedOnly + booksNoProgress + booksError);
|
|
public bool HasPdfResults => 0 < (pdfsNotDownloaded + pdfsDownloaded);
|
|
}
|
|
public static LibraryStats GetCounts()
|
|
{
|
|
var libraryBooks = DbContexts.GetLibrary_Flat_NoTracking();
|
|
|
|
var results = libraryBooks
|
|
.AsParallel()
|
|
.Select(lb => Liberated_Status(lb.Book))
|
|
.ToList();
|
|
var booksFullyBackedUp = results.Count(r => r == LiberatedStatus.Liberated);
|
|
var booksDownloadedOnly = results.Count(r => r == LiberatedStatus.PartialDownload);
|
|
var booksNoProgress = results.Count(r => r == LiberatedStatus.NotLiberated);
|
|
var booksError = results.Count(r => r == LiberatedStatus.Error);
|
|
|
|
Log.Logger.Information("Book counts. {@DebugInfo}", new { total = results.Count, booksFullyBackedUp, booksDownloadedOnly, booksNoProgress, booksError });
|
|
|
|
var boolResults = libraryBooks
|
|
.AsParallel()
|
|
.Where(lb => lb.Book.HasPdf())
|
|
.Select(lb => Pdf_Status(lb.Book))
|
|
.ToList();
|
|
var pdfsDownloaded = boolResults.Count(r => r == LiberatedStatus.Liberated);
|
|
var pdfsNotDownloaded = boolResults.Count(r => r == LiberatedStatus.NotLiberated);
|
|
|
|
Log.Logger.Information("PDF counts. {@DebugInfo}", new { total = boolResults.Count, pdfsDownloaded, pdfsNotDownloaded });
|
|
|
|
return new(booksFullyBackedUp, booksDownloadedOnly, booksNoProgress, booksError, pdfsDownloaded, pdfsNotDownloaded);
|
|
}
|
|
}
|
|
}
|