From 4262ae6c87b4c11f7fe958a91fdd3333a8c5138c Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sun, 1 Nov 2020 23:29:01 +0100
Subject: Matrix: cache sync

---
 plugins/Matrix.hpp | 32 +++++++++++++++++++++++++++-----
 1 file changed, 27 insertions(+), 5 deletions(-)

(limited to 'plugins/Matrix.hpp')

diff --git a/plugins/Matrix.hpp b/plugins/Matrix.hpp
index 6a876d0..6af1bb8 100644
--- a/plugins/Matrix.hpp
+++ b/plugins/Matrix.hpp
@@ -189,6 +189,8 @@ namespace QuickMedia {
         virtual void remove_invite(const std::string &room_id) = 0;
 
         virtual void update(MatrixPageType page_type) { (void)page_type; }
+
+        virtual void clear_data() = 0;
     };
 
     class Matrix;
@@ -212,6 +214,8 @@ namespace QuickMedia {
 
         void update(MatrixPageType page_type) override;
 
+        void clear_data() override;
+
         Program *program;
         Matrix *matrix;
         MatrixRoomsPage *rooms_page;
@@ -226,6 +230,7 @@ namespace QuickMedia {
         };
 
         std::map<RoomData*, std::shared_ptr<BodyItem>> room_body_item_by_room;
+        std::mutex room_body_items_mutex;
         std::map<RoomData*, RoomMessagesData> pending_room_messages;
         std::mutex pending_room_messages_mutex;
     };
@@ -246,15 +251,18 @@ namespace QuickMedia {
 
         void set_current_chat_page(MatrixChatPage *chat_page);
 
+        void clear_data();
+
         MatrixQuickMedia *matrix_delegate = nullptr;
     private:
         std::mutex mutex;
         std::vector<std::shared_ptr<BodyItem>> room_body_items;
         std::vector<std::string> pending_remove_body_items;
-        Body *body;
+        Body *body = nullptr;
         std::string title;
-        MatrixRoomTagsPage *room_tags_page;
-        MatrixChatPage *current_chat_page;
+        MatrixRoomTagsPage *room_tags_page = nullptr;
+        MatrixChatPage *current_chat_page = nullptr;
+        bool clear_data_on_update = false;
     };
 
     class MatrixRoomTagsPage : public Page {
@@ -272,6 +280,8 @@ namespace QuickMedia {
 
         void set_current_rooms_page(MatrixRoomsPage *rooms_page);
 
+        void clear_data();
+
         MatrixQuickMedia *matrix_delegate = nullptr;
     private:
         struct TagData {
@@ -285,6 +295,7 @@ namespace QuickMedia {
         std::map<std::string, std::vector<std::shared_ptr<BodyItem>>> add_room_body_items_by_tags;
         std::map<std::string, std::vector<std::shared_ptr<BodyItem>>> remove_room_body_items_by_tags;
         MatrixRoomsPage *current_rooms_page = nullptr;
+        bool clear_data_on_update = false;
     };
 
     class MatrixInvitesPage : public Page {
@@ -297,6 +308,8 @@ namespace QuickMedia {
         void update() override;
         void add_body_item(std::shared_ptr<BodyItem> body_item);
         void remove_body_item_by_room_id(const std::string &room_id);
+
+        void clear_data();
     private:
         Matrix *matrix;
         std::mutex mutex;
@@ -305,6 +318,7 @@ namespace QuickMedia {
         Body *body;
         std::string title = "Invites (0)";
         size_t prev_invite_count = 0;
+        bool clear_data_on_update = false;
     };
 
     class MatrixInviteDetailsPage : public Page {
@@ -352,6 +366,7 @@ namespace QuickMedia {
         const std::string room_id;
         MatrixQuickMedia *matrix_delegate = nullptr;
         MatrixRoomsPage *rooms_page = nullptr;
+        bool should_clear_data = false;
     };
 
     class Matrix {
@@ -359,6 +374,8 @@ namespace QuickMedia {
         void start_sync(MatrixDelegate *delegate);
         void stop_sync();
         bool is_initial_sync_finished() const;
+        // Returns true if initial sync failed, and |err_msg| is set to the error reason in that case
+        bool did_initial_sync_fail(std::string &err_msg);
         void get_room_sync_data(RoomData *room, SyncData &sync_data);
 
         void get_all_synced_room_messages(RoomData *room, Messages &messages);
@@ -380,7 +397,7 @@ namespace QuickMedia {
         // |message| is from |BodyItem.userdata| and is of type |Message*|
         PluginResult delete_message(RoomData *room, void *message, std::string &err_msg);
 
-        PluginResult load_and_verify_cached_session();
+        PluginResult load_cached_session();
 
         PluginResult on_start_typing(RoomData *room);
         PluginResult on_stop_typing(RoomData *room);
@@ -426,23 +443,28 @@ namespace QuickMedia {
         void set_invite(const std::string &room_id, Invite invite);
         // Returns true if an invite for |room_id| exists
         bool remove_invite(const std::string &room_id);
+        void set_next_batch(std::string new_next_batch);
+        std::string get_next_batch();
+        void clear_sync_cache_for_new_sync();
         DownloadResult download_json(rapidjson::Document &result, const std::string &url, std::vector<CommandArg> additional_args, bool use_browser_useragent = false, std::string *err_msg = nullptr) const;
     private:
         std::vector<std::unique_ptr<RoomData>> rooms;
         std::unordered_map<std::string, size_t> room_data_by_id; // value is an index into |rooms|
         std::recursive_mutex room_data_mutex;
         std::string user_id;
-        std::string username;
         std::string access_token;
         std::string homeserver;
         std::optional<int> upload_limit;
         std::string next_batch;
+        std::mutex next_batch_mutex;
 
         std::unordered_map<std::string, Invite> invites;
         std::mutex invite_mutex;
 
         std::thread sync_thread;
         bool sync_running = false;
+        bool sync_failed = false;
+        std::string sync_fail_reason;
         MatrixDelegate *delegate = nullptr;
     };
 }
\ No newline at end of file
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