From 0e648c7c62944cd81aa57f10ac01cdabe2f2b7e0 Mon Sep 17 00:00:00 2001
From: Dominick Allen <djallen@librehumanitas.org>
Date: Sun, 29 Sep 2024 09:28:28 -0500
Subject: Remember various settings.

---
 src/archive.cpp | 85 +++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 71 insertions(+), 14 deletions(-)

(limited to 'src/archive.cpp')

diff --git a/src/archive.cpp b/src/archive.cpp
index 0339d85..1ce79b4 100644
--- a/src/archive.cpp
+++ b/src/archive.cpp
@@ -6,26 +6,81 @@
 
 namespace getsuyomi {
 
+using fud::FudStatus;
+
 ZipArchive::ZipArchive(const QString& filename)
 {
     auto filenameUtf8 = filename.toUtf8();
     qDebug("Open file %s", filenameUtf8.data());
     int err;
     m_archive = zip_open(filenameUtf8.data(), 0, &err);
+
     if (m_archive == nullptr) {
         zip_error_t error;
         zip_error_init_with_code(&error, err);
         qCritical("%s: cannot open zip archive '%s': %s", AppName, filenameUtf8.data(), zip_error_strerror(&error));
         zip_error_fini(&error);
-        throw std::runtime_error("Bad zip file");
+        return;
     }
 
-    populate();
+    auto status = populate();
+    if (status != FudStatus::Success) {
+        cleanup();
+        return;
+    }
+}
+
+ZipArchive::ZipArchive(ZipArchive&& rhs)
+    :m_archive{rhs.m_archive},
+     m_sortedIndices{std::move(rhs.m_sortedIndices)},
+     m_filenames{std::move(rhs.m_filenames)},
+     m_fileSizes{std::move(rhs.m_fileSizes)},
+     m_pages{std::move(rhs.m_pages)}
+{
+    rhs.m_archive = nullptr;
+}
+
+ZipArchive::~ZipArchive()
+{
+    cleanup();
 }
 
-void ZipArchive::populate()
+ZipArchive& ZipArchive::operator=(ZipArchive&& rhs)
 {
-    auto numEntries = zip_get_num_entries(m_archive, ZIP_FL_UNCHANGED);
+    m_archive = rhs.m_archive;
+    m_sortedIndices = std::move(rhs.m_sortedIndices);
+    m_filenames = std::move(rhs.m_filenames);
+    m_fileSizes = std::move(rhs.m_fileSizes);
+    m_pages = std::move(rhs.m_pages);
+
+    rhs.m_archive = nullptr;
+
+    return *this;
+}
+
+bool ZipArchive::valid() const {
+    return m_archive != nullptr;
+}
+
+void ZipArchive::cleanup() {
+    if (m_archive != nullptr) {
+        zip_discard(m_archive);
+        m_archive = nullptr;
+    }
+}
+
+fud::FudStatus ZipArchive::populate()
+{
+    if (!valid()) {
+        qCritical("Invalid zipArchive");
+        return FudStatus::ObjectInvalid;
+    }
+
+    auto numEntriesResult = zip_get_num_entries(m_archive, ZIP_FL_UNCHANGED);
+    if (numEntriesResult < 0) {
+        return FudStatus::Failure;
+    }
+    size_t numEntries = static_cast<size_t>(numEntriesResult);
     qDebug("%zu pages", numEntries);
 
     struct NameIndex {
@@ -42,6 +97,9 @@ void ZipArchive::populate()
         struct zip_stat stats;
 
         auto status = zip_stat_index(m_archive, idx, 0, &stats);
+        if (status < 0) {
+            return FudStatus::Failure;
+        }
         static_assert(ZIP_STAT_NAME != 0);
         static_assert(ZIP_STAT_SIZE != 0);
         static_assert(ZIP_STAT_INDEX != 0);
@@ -62,6 +120,11 @@ void ZipArchive::populate()
         m_pages.emplace_back(std::nullopt);
     }
 
+
+    if (m_pages.empty()) {
+        return FudStatus::Empty;
+    }
+
     std::sort(nameIndices.begin(), nameIndices.end(), [](const auto& lhs, const auto& rhs) {
         return std::lexicographical_compare(lhs.name.begin(), lhs.name.end(), rhs.name.begin(), rhs.name.end());
     });
@@ -75,14 +138,8 @@ void ZipArchive::populate()
         m_filenames.push_back(nameIndex.name);
         m_fileSizes.push_back(nameIndex.filesize);
     }
-}
 
-ZipArchive::~ZipArchive()
-{
-    if (m_archive != nullptr) {
-        zip_discard(m_archive);
-        m_archive = nullptr;
-    }
+    return FudStatus::Success;
 }
 
 ArchiveResult ZipArchive::getPage(size_t page)
@@ -105,11 +162,11 @@ ArchiveResult ZipArchive::getPage(size_t page)
     }
 
     QByteArray data;
-    data.resize(m_fileSizes[page]);
-    auto index = m_sortedIndices[page];
+    data.resize(static_cast<qsizetype>(m_fileSizes[page]));
+    // auto index = m_sortedIndices[page];
 
     qDebug("Reading in page data");
-    auto bytesRead = zip_fread(file, data.data(), data.size());
+    auto bytesRead = zip_fread(file, data.data(), static_cast<size_t>(data.size()));
     zip_fclose(file);
     file = nullptr;
 
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