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ScriptureDataFileService.cs
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ScriptureDataFileService.cs
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namespace Serval.Shared.Services;
public class ScriptureDataFileService(IFileSystem fileSystem, IOptionsMonitor<DataFileOptions> dataFileOptions)
: IScriptureDataFileService
{
private readonly IFileSystem _fileSystem = fileSystem;
private readonly IOptionsMonitor<DataFileOptions> _dataFileOptions = dataFileOptions;
public ParatextProjectSettings GetParatextProjectSettings(string filename)
{
using IZipContainer container = _fileSystem.OpenZipFile(GetFilePath(filename));
ZipParatextProjectSettingsParser settingsParser = new(_fileSystem, container);
return settingsParser.Parse();
}
public async Task<string?> ReadParatextProjectBookAsync(string filename, string book)
{
using IZipContainer container = _fileSystem.OpenZipFile(GetFilePath(filename));
ParatextProjectSettings settings = ParseProjectSettings(container);
string entryName = GetBookFileName(settings, book);
if (!container.EntryExists(entryName))
return null;
using StreamReader reader = new(container.OpenEntry(entryName));
return await reader.ReadToEndAsync();
}
private string GetFilePath(string filename)
{
return Path.Combine(_dataFileOptions.CurrentValue.FilesDirectory, filename);
}
private ParatextProjectSettings ParseProjectSettings(IZipContainer container)
{
ZipParatextProjectSettingsParser settingsParser = new(_fileSystem, container);
return settingsParser.Parse();
}
private static string GetBookFileName(ParatextProjectSettings settings, string bookId)
{
string bookPart;
if (settings.FileNameForm == "MAT")
bookPart = bookId;
else if (settings.FileNameForm == "40" || settings.FileNameForm == "41")
bookPart = GetBookFileNameDigits(bookId);
else
bookPart = GetBookFileNameDigits(bookId) + bookId;
return settings.FileNamePrefix + bookPart + settings.FileNameSuffix;
}
private static string GetBookFileNameDigits(string bookId)
{
int bookNum = Canon.BookIdToNumber(bookId);
if (bookNum < 10)
return "0" + bookNum;
if (bookNum < 40)
return bookNum.ToString(CultureInfo.InvariantCulture);
if (bookNum < 100)
return (bookNum + 1).ToString(CultureInfo.InvariantCulture);
if (bookNum < 110)
return "A" + (bookNum - 100);
if (bookNum < 120)
return "B" + (bookNum - 110);
return "C" + (bookNum - 120);
}
}