fix month starting at 0

src/chat_gui4.cpp

@@ -324,6 +324,7 @@ float ChatGui4::render(float time_delta) {
 						//tmp_view.use<Message::Components::Timestamp>();
 						//tmp_view.each([&](const Message3 e, Message::Components::ContactFrom& c_from, Message::Components::ContactTo& c_to, Message::Components::Timestamp ts
 						//) {
+						uint64_t prev_ts {0};
 						auto tmp_view = msg_reg.view<Message::Components::Timestamp>();
 						for (auto view_it = tmp_view.rbegin(), view_last = tmp_view.rend(); view_it != view_last; view_it++) {
 							const Message3 e = *view_it;
@@ -341,6 +342,34 @@ float ChatGui4::render(float time_delta) {
 							// TODO: why?
 							ImGui::TableNextRow(0, TEXT_BASE_HEIGHT);
 
+							{ // check if date changed
+								// TODO: find defined ways of casting to time_t
+								std::time_t prev = prev_ts / 1000;
+								std::time_t next = ts.ts / 1000;
+								std::tm prev_tm = *std::localtime(&prev);
+								std::tm next_tm = *std::localtime(&next);
+								if (
+									prev_tm.tm_yday != next_tm.tm_yday ||
+									prev_tm.tm_year != next_tm.tm_year // making sure
+								) {
+									// name
+									if (ImGui::TableNextColumn()) {
+										//ImGui::TextDisabled("---");
+									}
+									// msg
+									if (ImGui::TableNextColumn()) {
+										ImGui::TextDisabled("DATE CHANGED from %d.%d.%d to %d.%d.%d",
+											1900+prev_tm.tm_year, 1+prev_tm.tm_mon, prev_tm.tm_mday,
+											1900+next_tm.tm_year, 1+next_tm.tm_mon, next_tm.tm_mday
+										);
+									}
+									ImGui::TableNextRow(0, TEXT_BASE_HEIGHT);
+								}
+
+								prev_ts = ts.ts;
+							}
+
+
 							ImGui::PushID(entt::to_integral(e));
 
 							// name

src/fragment_store/README.md

@@ -0,0 +1,72 @@
+# Fragment Store
+
+Fragments are are pieces of information split into Metadata and Data.
+They can be stored seperated or together.
+They can be used as a Transport protocol/logic too.
+
+# Store types
+
+### Object Store
+
+Fragment files are stored with the first 2 hex chars as sub folders:
+eg:
+`objects/` (object store root)
+  - `5f/` (first 2hex subfolder)
+    - `4fffffff` (the fragment file without the first 2 hexchars)
+
+### Split Object Store
+
+Same as Object Store, but medadata and data stored in seperate files.
+Metadata files have the `.meta` suffix. They also have a filetype specific suffix, like `.json`, `.msgpack` etc.
+
+### Memory Store
+
+Just keeps the Fragments in memory.
+
+# File formats
+
+Files can be compressed and encrypted. Since compression needs the data structure to funcion, it is applied before it is encrypted.
+
+### Text Json
+
+Text json only makes sense for metadata if it's neither compressed nor encrypted. (otherwise its binary on disk anyway, so why waste bytes).
+Since the content of data is not looked at, nothing stops you from using text json and ecrypt it, but atleast basic compression is advised.
+
+A Metadata json object has the following keys:
+- `enc` (uint) Encryption type of the data, if any
+- `comp` (uint) Compression type of the data, if any
+- `metadata` (obj) the 
+
+## Binary file headers
+
+### Split Metadata
+
+file magic bytes `SOLMET` (6 bytes)
+
+1 byte encryption type (`0x00` is none)
+
+1 byte compression type (`0x00` is none)
+
+...metadata here...
+
+note that the encryption and compression are for the metadata only.
+The metadata itself contains encryption and compression info about the data.
+
+### Split Data
+
+(none) all the data is in the metadata file.
+This is mostly to allow direct storage for files in the Fragment store without excessive duplication.
+Keep in mind to not use the actual file name as the data/meta file name.
+
+### Single fragment
+
+file magic bytes `SOLFIL` (6 bytes)
+
+1 byte encryption type (`0x00` is none)
+
+1 byte compression type (`0x00` is none)
+
+...metadata here...
+
+...data here...
+