From 2314664f3c6486231d96e4d8c2b32c5b8eab1c21 Mon Sep 17 00:00:00 2001
From: Pierre Guillot <guillotpierre6@gmail.com>
Date: Wed, 15 Jan 2025 11:32:12 +0100
Subject: [PATCH] Document::Director: Share a document and its audio file
 without consolidating tracks

---
 Source/Document/AnlDocumentDirector.cpp  | 37 +++++++++++++++++++++---
 Source/Document/AnlDocumentDirector.h    |  2 ++
 Source/Document/AnlDocumentFileBased.cpp |  1 +
 3 files changed, 36 insertions(+), 4 deletions(-)

diff --git a/Source/Document/AnlDocumentDirector.cpp b/Source/Document/AnlDocumentDirector.cpp
index 048cf413..ccf48ccb 100644
--- a/Source/Document/AnlDocumentDirector.cpp
+++ b/Source/Document/AnlDocumentDirector.cpp
@@ -18,20 +18,44 @@ Document::Director::Director(Accessor& accessor, juce::AudioFormatManager& audio
             {
                 FileWatcher::clearAllFiles();
                 auto const reader = mAccessor.getAttr<AttrType::reader>();
-                for(auto const& channelLayout : reader)
-                {
-                    FileWatcher::addFile(channelLayout.file);
-                }
                 if(std::none_of(reader.cbegin(), reader.cend(), [](auto const& channelLayout)
                                 {
                                     auto const file = channelLayout.file;
                                     return file != juce::File{} && !file.existsAsFile();
                                 }))
                 {
+                    for(auto const& channelLayout : reader)
+                    {
+                        FileWatcher::addFile(channelLayout.file);
+                    }
                     initializeAudioReaders(notification);
                 }
                 else
                 {
+                    auto newReader = reader;
+                    if(mFileMapper.first != juce::File() && mFileMapper.second != juce::File())
+                    {
+                        for(auto& channelLayout : newReader)
+                        {
+                            if(!channelLayout.file.existsAsFile())
+                            {
+                                auto const relativePath = channelLayout.file.getRelativePathFrom(mFileMapper.first);
+                                auto const newPath = mFileMapper.second.getSiblingFile(relativePath);
+                                if(newPath.existsAsFile())
+                                {
+                                    channelLayout.file = newPath;
+                                }
+                            }
+                        }
+                    }
+                    mFileMapper.first = juce::File{};
+                    mFileMapper.second = juce::File{};
+                    if(newReader != reader)
+                    {
+                        mAccessor.setAttr<AttrType::reader>(newReader, notification);
+                        return;
+                    }
+
                     auto const options = juce::MessageBoxOptions()
                                              .withIconType(juce::AlertWindow::WarningIcon)
                                              .withTitle(juce::translate("Audio(s) files cannot be found!"))
@@ -424,6 +448,11 @@ void Document::Director::setAlertCatcher(AlertWindow::Catcher* catcher)
     }
 }
 
+void Document::Director::setFileMapper(juce::File const& saved, juce::File const& current)
+{
+    mFileMapper = std::make_pair(saved, current);
+}
+
 void Document::Director::setPluginTable(PluginList::Table* table, std::function<void(bool)> showHideFn)
 {
     mPluginTable = table;
diff --git a/Source/Document/AnlDocumentDirector.h b/Source/Document/AnlDocumentDirector.h
index 55995816..e4fd43e0 100644
--- a/Source/Document/AnlDocumentDirector.h
+++ b/Source/Document/AnlDocumentDirector.h
@@ -43,6 +43,7 @@ namespace Document
         std::optional<juce::String> copyTrack(juce::String const groupIdentifier, size_t index, juce::String const trackIdentifier, NotificationType const notification);
 
         void setAlertCatcher(AlertWindow::Catcher* catcher);
+        void setFileMapper(juce::File const& saved, juce::File const& current);
         void setPluginTable(PluginList::Table* table, std::function<void(bool)> showHideFn);
         void setLoaderSelector(Track::Loader::ArgumentSelector* selector, std::function<void(bool)> showHideFn);
         void setBackupDirectory(juce::File const& directory);
@@ -77,6 +78,7 @@ namespace Document
         std::unique_ptr<juce::FileChooser> mFileChooser;
         juce::File mBackupDirectory;
         bool mSilentResultsFileManagement{false};
+        std::pair<juce::File, juce::File> mFileMapper;
 
         JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(Director)
         JUCE_DECLARE_WEAK_REFERENCEABLE(Director)
diff --git a/Source/Document/AnlDocumentFileBased.cpp b/Source/Document/AnlDocumentFileBased.cpp
index f79e9e95..38708750 100644
--- a/Source/Document/AnlDocumentFileBased.cpp
+++ b/Source/Document/AnlDocumentFileBased.cpp
@@ -127,6 +127,7 @@ juce::Result Document::FileBased::loadDocument(juce::File const& file)
 
     AlertWindow::Catcher catcher;
     mDirector.setAlertCatcher(&catcher);
+    mDirector.setFileMapper(original, file);
     mAccessor.sendSignal(SignalType::isLoading, {true}, NotificationType::synchronous);
     mAccessor.fromXml(*xml.get(), {"document"}, NotificationType::synchronous);
     [[maybe_unused]] auto const references = mDirector.sanitize(NotificationType::synchronous);