// TODO: Review this...
public async Task <Response> GenerateAsync(Request request, CancellationToken cancellationToken = default)
{
AuthorSearchResults searchResults = null;
// Attempt to download from the alternate site, if present. If it fails in some way, try .com
// If the .com search crashes, it will crash back to the caller in frmMain
try
{
searchResults = await _amazonClient.SearchAuthor(request.Book.Author, request.Book.Asin, request.Settings.AmazonTld, request.Settings.SaveHtml, cancellationToken);
}
catch (Exception ex)
{
_logger.Log("Error searching Amazon." + request.Settings.AmazonTld + ": " + ex.Message + "\r\n" + ex.StackTrace);
}
finally
{
if (searchResults == null)
{
_logger.Log(string.Format("Failed to find {0} on Amazon." + request.Settings.AmazonTld, request.Book.Author));
if (request.Settings.AmazonTld != "com")
{
_logger.Log("Trying again with Amazon.com.");
request.Settings.AmazonTld = "com";
searchResults = await _amazonClient.SearchAuthor(request.Book.Author, request.Book.Asin, request.Settings.AmazonTld, request.Settings.SaveHtml, cancellationToken);
}
}
}
if (searchResults == null)
{
return(null); // Already logged error in search function
}
var authorAsin = searchResults.Asin;
//todo re-implement saving in a nicer way
// if (Properties.Settings.Default.saveHtml)
// {
// try
// {
// _logger.Log("Saving author's Amazon webpage...");
// File.WriteAllText(Environment.CurrentDirectory + string.Format(@"\dmp\{0}.authorpageHtml.txt", request.Book.Asin),
// searchResults.AuthorHtmlDoc.DocumentNode.InnerHtml);
// }
// catch (Exception ex)
// {
// _logger.Log(string.Format("An error occurred saving authorpageHtml.txt: {0}", ex.Message));
// }
// }
// Try to find author's biography
string ReadBio(string file)
{
try
{
var fileText = Functions.ReadFromFile(file);
if (string.IsNullOrEmpty(fileText))
{
_logger.Log("Found biography file, but it is empty!\r\n" + file);
}
else
{
_logger.Log("Using biography from " + file + ".");
}
return(fileText);
}
catch (Exception ex)
{
_logger.Log("An error occurred while opening " + file + "\r\n" + ex.Message + "\r\n" + ex.StackTrace);
}
return(null);
}
// TODO: Separate out biography stuff
string biography = null;
var bioFile = Environment.CurrentDirectory + @"\ext\" + authorAsin + ".bio";
var readFromFile = false;
if (request.Settings.SaveBio && File.Exists(bioFile))
{
biography = ReadBio(bioFile);
// if it's null, there was an error. if it's just empty, we'll parse it out instead
if (biography == null)
{
return(null);
}
if (biography == "")
{
readFromFile = true;
}
}
if (string.IsNullOrEmpty(biography) && !string.IsNullOrEmpty(searchResults.Biography))
{
//Trim authour biography to less than 1000 characters and/or replace more problematic characters.
if (searchResults.Biography.Trim().Length > 0)
{
if (searchResults.Biography.Length > 1000)
{
var lastPunc = searchResults.Biography.LastIndexOfAny(new [] { '.', '!', '?' });
var lastSpace = searchResults.Biography.LastIndexOf(' ');
if (lastPunc > lastSpace)
{
biography = searchResults.Biography.Substring(0, lastPunc + 1);
}
else
{
biography = searchResults.Biography.Substring(0, lastSpace) + '\u2026';
}
}
else
{
biography = searchResults.Biography;
}
biography = biography.Clean();
if (request.Settings.SaveBio)
{
File.WriteAllText(bioFile, biography);
}
_logger.Log("Author biography found on Amazon!");
}
}
var message = biography == null
? "No author biography found on Amazon!\r\nWould you like to create one?"
: readFromFile
? "Would you like to edit the existing biography?"
: "Author biography found on Amazon! Would you like to edit it?";
// TODO: No dialogs here
if (request.Settings.EditBiography &&
System.Windows.Forms.DialogResult.Yes ==
System.Windows.Forms.MessageBox.Show(
message, "Biography",
System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question,
System.Windows.Forms.MessageBoxDefaultButton.Button2))
{
if (!File.Exists(bioFile))
{
File.WriteAllText(bioFile, string.Empty);
}
Functions.RunNotepad(bioFile);
biography = ReadBio(bioFile);
}
if (string.IsNullOrEmpty(biography))
{
biography = "No author biography found locally or on Amazon!";
_logger.Log("An error occurred finding the author biography.");
}
if (request.Settings.SaveBio)
{
if (!File.Exists(bioFile))
{
try
{
_logger.Log("Saving biography to " + bioFile);
using var streamWriter = new StreamWriter(bioFile, false, System.Text.Encoding.UTF8);
await streamWriter.WriteAsync(biography);
}
catch (Exception ex)
{
_logger.Log("An error occurred while writing biography.\r\n" + ex.Message + "\r\n" + ex.StackTrace);
return(null);
}
}
if (System.Windows.Forms.DialogResult.Yes == System.Windows.Forms.MessageBox.Show("Would you like to open the biography file in notepad for editing?", "Biography",
System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question, System.Windows.Forms.MessageBoxDefaultButton.Button2))
{
Functions.RunNotepad(bioFile);
biography = ReadBio(bioFile);
if (string.IsNullOrEmpty(biography))
{
return(null);
}
}
}
// Try to download Author image
request.Book.AuthorImageUrl = searchResults.ImageUrl;
Bitmap ApAuthorImage = null;
try
{
_logger.Log("Downloading author image...");
ApAuthorImage = await _httpClient.GetImageAsync(request.Book.AuthorImageUrl, cancellationToken : cancellationToken);
_logger.Log("Grayscale base64-encoded author image created!");
}
catch (Exception ex)
{
_logger.Log(string.Format("An error occurred downloading the author image: {0}", ex.Message));
}
var bookBag = new ConcurrentBag <BookInfo>();
if (searchResults.Books != null && request.Settings.UseNewVersion)
{
_logger.Log("Gathering metadata for author's other books...");
try
{
await foreach (var book in _amazonClient.EnhanceBookInfos(searchResults.Books, cancellationToken))
{
// todo progress
bookBag.Add(book);
}
}
catch (Exception ex)
{
_logger.Log($"An error occurred gathering metadata for other books: {ex.Message}");
throw;
}
}
else
{
_logger.Log("Unable to find other books by this author. If there should be some, check the Amazon URL to ensure it is correct.");
}
_logger.Log("Writing Author Profile to file...");
return(new Response
{
Asin = authorAsin,
Name = request.Book.Author,
OtherBooks = bookBag.ToArray(),
Biography = biography,
Image = ApAuthorImage,
ImageUrl = searchResults.ImageUrl
});
}
// TODO: Review this...
public async Task <Response> GenerateAsync(Request request, Func <string, bool> editBioCallback, IProgressBar progress = null, CancellationToken cancellationToken = default)
{
AuthorSearchResults searchResults = null;
// Attempt to download from the alternate site, if present. If it fails in some way, try .com
// If the .com search crashes, it will crash back to the caller in frmMain
try
{
searchResults = await _amazonClient.SearchAuthor(request.Book.Author, request.Settings.AmazonTld, cancellationToken);
}
catch (Exception ex)
{
_logger.Log($"Error searching Amazon.{request.Settings.AmazonTld}: {ex.Message}\r\n{ex.StackTrace}");
}
finally
{
if (searchResults == null)
{
_logger.Log($"Failed to find {request.Book.Author} on Amazon.{request.Settings.AmazonTld}");
if (request.Settings.AmazonTld != "com")
{
_logger.Log("Trying again with Amazon.com.");
request.Settings.AmazonTld = "com";
searchResults = await _amazonClient.SearchAuthor(request.Book.Author, request.Settings.AmazonTld, cancellationToken);
}
}
}
if (searchResults == null)
{
return(null); // Already logged error in search function
}
// Filter out any results that are the same title but not the same asin
searchResults.Books = searchResults.Books
.Where(book => !book.Title.ToLower().Contains(request.Book.Title.ToLower()) && book.Asin != request.Book.Asin)
.ToArray();
var authorAsin = searchResults.Asin;
//todo re-implement saving in a nicer way
// if (Properties.Settings.Default.saveHtml)
// {
// try
// {
// _logger.Log("Saving author's Amazon webpage...");
// File.WriteAllText(AppDomain.CurrentDomain.BaseDirectory + string.Format(@"\dmp\{0}.authorpageHtml.txt", request.Book.Asin),
// searchResults.AuthorHtmlDoc.DocumentNode.InnerHtml);
// }
// catch (Exception ex)
// {
// _logger.Log(string.Format("An error occurred saving authorpageHtml.txt: {0}", ex.Message));
// }
// }
// TODO: Separate out biography stuff
// Try to find author's biography
string biography = null;
var bioFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ext", $"{authorAsin}.bio");
var readFromFile = false;
var newBioFile = false;
string ReadBio(string file)
{
try
{
var fileText = Functions.ReadFromFile(file);
if (string.IsNullOrEmpty(fileText))
{
_logger.Log($"Found biography file, but it is empty!\r\n{file}");
}
else if (!string.Equals(biography, fileText))
{
_logger.Log($"Using biography from {file}.");
}
// todo fix this
if (fileText != null && fileText.Contains("No author biography found locally or on Amazon!"))
{
_logger.Log($"Warning: Local biography file contains an empty default biography.{Environment.NewLine}Delete {file} and try again");
}
return(fileText);
}
catch (Exception ex)
{
_logger.Log($"An error occurred while opening {file}\r\n{ex.Message}\r\n{ex.StackTrace}");
}
return(null);
}
string TrimBio(string bio)
{
try
{
//Trim author biography to less than 1000 characters and/or replace more problematic characters.
if (string.IsNullOrWhiteSpace(bio))
{
return(null);
}
if (bio.Length > 1000)
{
// todo culture invariant
var lastPunc = bio.LastIndexOfAny(new[] { '.', '!', '?' });
var lastSpace = bio.LastIndexOf(' ');
bio = lastPunc > lastSpace
? bio.Substring(0, lastPunc + 1)
: $"{bio.Substring(0, lastSpace)}{'\u2026'}";
}
return(bio.Clean());
}
catch (Exception ex)
{
_logger.Log($"An error occurred while trimming the biography\r\n{ex.Message}\r\n{ex.StackTrace}");
}
return(bio);
}
if (searchResults.Biography == null && !File.Exists(bioFile))
{
if (request.Settings.AmazonTld != "com")
{
_logger.Log(@"Searching for biography on Amazon.com…");
request.Settings.AmazonTld = "com";
var tempSearchResults = await _amazonClient.SearchAuthor(request.Book.Author, request.Settings.AmazonTld, cancellationToken, false);
if (tempSearchResults?.Biography != null)
{
searchResults.Biography = tempSearchResults.Biography;
}
}
}
if (searchResults.Biography != null)
{
biography = searchResults.Biography;
}
if (File.Exists(bioFile) && request.Settings.SaveBio)
{
biography = ReadBio(bioFile);
// if it's null, there was an error. if it's just empty, we'll parse it out instead
if (biography == null)
{
return(null);
}
if (!string.IsNullOrEmpty(biography))
{
readFromFile = true;
}
}
if (!string.IsNullOrEmpty(biography) && (request.Settings.SaveBio || request.Settings.EditBiography))
{
if (!readFromFile)
{
biography = TrimBio(biography);
}
if (!File.Exists(bioFile) && !string.IsNullOrEmpty(biography))
{
File.WriteAllText(bioFile, biography);
newBioFile = true;
_logger.Log(@"Author biography found!");
}
}
var message = biography == null
? $"No author biography found on Amazon!{Environment.NewLine}Would you like to create one?"
: readFromFile
? "Would you like to edit the existing biography?"
: $"Author biography found on Amazon!{Environment.NewLine}Would you like to edit it?";
if (editBioCallback != null && editBioCallback(message))
{
if (!File.Exists(bioFile))
{
File.WriteAllText(bioFile, string.Empty);
}
Functions.RunNotepad(bioFile);
biography = ReadBio(bioFile);
}
if (string.IsNullOrEmpty(biography))
{
biography = "No author biography found locally or on Amazon!";
_logger.Log("An error occurred finding the author biography.");
}
if (request.Settings.SaveBio)
{
if (!File.Exists(bioFile))
{
try
{
_logger.Log($"Saving biography to {bioFile}");
using var streamWriter = new StreamWriter(bioFile, false, System.Text.Encoding.UTF8);
await streamWriter.WriteAsync(biography);
}
catch (Exception ex)
{
_logger.Log($"An error occurred while writing biography.\r\n{ex.Message}\r\n{ex.StackTrace}");
return(null);
}
}
if (newBioFile)
{
_logger.Log(@"New biography file opened in notepad for editing…");
Functions.RunNotepad(bioFile);
biography = ReadBio(bioFile);
if (string.IsNullOrEmpty(biography))
{
return(null);
}
searchResults.Biography = biography;
}
if (!readFromFile && editBioCallback != null && editBioCallback("Would you like to open the biography file in notepad for editing?"))
{
Functions.RunNotepad(bioFile);
biography = ReadBio(bioFile);
if (string.IsNullOrEmpty(biography))
{
return(null);
}
}
}
searchResults.Biography = biography;
// Try to download Author image
request.Book.AuthorImageUrl = searchResults.ImageUrl;
Bitmap ApAuthorImage = null;
try
{
_logger.Log("Downloading author image…");
ApAuthorImage = await _httpClient.GetImageAsync(request.Book.AuthorImageUrl, cancellationToken : cancellationToken);
_logger.Log("Grayscale base64-encoded author image created!");
}
catch (Exception ex)
{
_logger.Log($"An error occurred downloading the author image: {ex.Message}");
}
var bookBag = new ConcurrentBag <BookInfo>();
if (searchResults.Books != null && request.Settings.UseNewVersion)
{
if (searchResults.Books.Length != 0)
{
// todo pluralize
_logger.Log(searchResults.Books.Length > 1
? $"Gathering metadata for {searchResults.Books.Length} other books by {request.Book.Author}…"
: $"Gathering metadata for another book by {request.Book.Author}…");
}
try
{
progress?.Set(0, searchResults.Books.Length);
await _amazonClient
.EnhanceBookInfos(searchResults.Books, cancellationToken)
.ForEachAsync(book =>
{
bookBag.Add(book);
progress?.Add(1);
}, cancellationToken);
progress?.Set(0, 0);
_logger.Log("Metadata gathering complete!");
}
catch (Exception ex)
{
_logger.Log($"An error occurred gathering metadata for other books: {ex.Message}");
throw;
}
}
else
{
_logger.Log($"Unable to find other books by {request.Book.Author}. If there should be some, check the Amazon URL to ensure it is correct.");
}
_logger.Log("Writing Author Profile to file…");
return(new Response
{
Asin = authorAsin,
Name = request.Book.Author,
OtherBooks = bookBag.ToArray(),
Biography = biography,
Image = ApAuthorImage,
ImageUrl = searchResults.ImageUrl
});
}
