From 3333013fd1f5c2cd9896c8f516cf78d157cfbdc0 Mon Sep 17 00:00:00 2001
From: Slavasil <subvia@pm.me>
Date: Sun, 5 Jan 2025 03:06:40 +0300
Subject: [PATCH] fix behavior when a post is deleted while offline

---
 manager.cpp | 66 ++++++++++++++++++++++++++++++-----------------------
 1 file changed, 37 insertions(+), 29 deletions(-)

diff --git a/manager.cpp b/manager.cpp
index 42e09e0..9976829 100644
--- a/manager.cpp
+++ b/manager.cpp
@@ -183,8 +183,10 @@ void NewPostFetcher::continue_fetch() {
           for (auto &p : posts) {
             spdlog::debug("[tg:{}] got post dated {}", i, p->date_);
           }
-          state.offset = posts[posts.size() - 1]->id_;
-          spdlog::info("[tg:{}] setting from to id {}", i, posts[posts.size() - 1]->id_);
+          if (posts.size() > 0) {
+            state.offset = posts[posts.size() - 1]->id_;
+            spdlog::info("[tg:{}] setting from to id {}", i, posts[posts.size() - 1]->id_);
+          }
           check_tg_posts(i, std::move(posts));
         });
         state.count = state.count * 3 / 2;
@@ -291,22 +293,25 @@ void NewPostFetcher::check_vk_posts(int index, std::vector<vk::Post> posts) {
   long oldLastPostDate = appState.lastLoadedPostDate;
   if (posts.size() > 0) {
     spdlog::info("[vk:{}] last post date is now {}", index, posts[0].date);
-  }
-  std::vector<AbstractPost> aposts = mgr->to_abstract_posts(posts, state.sourceIndex);
-  spdlog::info("[vk:{}] looking for date {}, have {} - {}", index, oldLastPostDate, aposts[0].date, aposts[aposts.size() - 1].date);
-  if (mgr->drop_posts_older_than(aposts, oldLastPostDate)) {
-    spdlog::info("[vk:{}] found last remembered post", index);
+    std::vector<AbstractPost> aposts = mgr->to_abstract_posts(posts, state.sourceIndex);
+    spdlog::info("[vk:{}] looking for date {}, have {} - {}", index, oldLastPostDate, aposts[0].date, aposts[aposts.size() - 1].date);
+    if (mgr->drop_posts_older_than(aposts, oldLastPostDate)) {
+      spdlog::info("[vk:{}] found last remembered post", index);
+      state.ready = true;
+    }
+    state.posts.reserve(state.posts.size() + aposts.size());
+    for (auto i = aposts.begin(), e = aposts.end(); i != e; ++i) {
+      state.posts.emplace_back(std::move(*i));
+    }
+    state.needRequest = true;
+    if (state.ready && !state.posts.empty()) {
+      spdlog::debug("[vk:{}] last loaded post date is now {}", index, state.posts[0].date);
+      appState.lastLoadedPostDate = state.posts[0].date;
+    }
+  } else {
     state.ready = true;
   }
-  state.posts.reserve(state.posts.size() + aposts.size());
-  for (auto i = aposts.begin(), e = aposts.end(); i != e; ++i) {
-    state.posts.emplace_back(std::move(*i));
-  }
-  state.needRequest = true;
-  if (state.ready && !state.posts.empty()) {
-    spdlog::debug("[vk:{}] last loaded post date is now {}", index, state.posts[0].date);
-    appState.lastLoadedPostDate = state.posts[0].date;
-  }
+
   continue_fetch();
 }
 
@@ -317,21 +322,24 @@ void NewPostFetcher::check_tg_posts(int index, std::vector<td::tl::unique_ptr<td
   long oldLastPostDate = appState.lastLoadedPostDate;
   if (posts.size() > 0) {
     spdlog::info("[tg:{}] last post date is now {}", index, posts[0]->date_);
-  }
-  std::vector<AbstractPost> aposts = mgr->to_abstract_posts(posts, state.sourceIndex);
-  if (mgr->drop_posts_older_than(aposts, oldLastPostDate)) {
-    spdlog::info("[tg:{}] found last remembered post", index);
+    std::vector<AbstractPost> aposts = mgr->to_abstract_posts(posts, state.sourceIndex);
+    if (mgr->drop_posts_older_than(aposts, oldLastPostDate)) {
+      spdlog::info("[tg:{}] found last remembered post", index);
+      state.ready = true;
+    }
+    state.posts.reserve(state.posts.size() + aposts.size());
+    for (auto i = aposts.begin(), e = aposts.end(); i != e; ++i) {
+      state.posts.emplace_back(std::move(*i));
+    }
+    state.needRequest = true;
+    if (state.ready && !state.posts.empty()) {
+      spdlog::debug("[tg:{}] last loaded post date is now {}", index, state.posts[0].date);
+      appState.lastLoadedPostDate = state.posts[0].id;
+    }
+  } else {
     state.ready = true;
   }
-  state.posts.reserve(state.posts.size() + aposts.size());
-  for (auto i = aposts.begin(), e = aposts.end(); i != e; ++i) {
-    state.posts.emplace_back(std::move(*i));
-  }
-  state.needRequest = true;
-  if (state.ready && !state.posts.empty()) {
-    spdlog::debug("[tg:{}] last loaded post date is now {}", index, state.posts[0].date);
-    appState.lastLoadedPostDate = state.posts[0].id;
-  }
+
   continue_fetch();
 }