LocalFolderDiff

bin/inbox-summary.py

@@ -86,64 +86,128 @@ def fetch_remote_folders(
     provider: str, crispin_client: CrispinClient
 ) -> Iterable[RemoteFolder]:
     try:
-        folder_names = crispin_client.folder_names()
+        folders = crispin_client.folders()
     except Exception:
         return
 
-    for role, folders in folder_names.items():
-        if provider == "gmail" and role not in ["all", "spam", "trash"]:
+    for folder in sorted(folders, key=lambda f: f.display_name):
+        if provider == "gmail" and folder.role not in ["all", "spam", "trash"]:
             continue
 
-        for folder in folders:
-            try:
-                result = crispin_client.select_folder(
-                    folder, lambda _account_id, _folder_name, select_info: select_info
-                )
-            except Exception:
-                continue
-
-            yield RemoteFolder(
-                name=folder,
-                role=role,
-                uidnext=result[b"UIDNEXT"],
-                exists=result[b"EXISTS"],
+        try:
+            result = crispin_client.select_folder(
+                folder.display_name,
+                lambda _account_id, _folder_name, select_info: select_info,
             )
+        except Exception:
+            continue
+
+        yield RemoteFolder(
+            name=folder.display_name,
+            role=folder.role,
+            uidnext=result[b"UIDNEXT"],
+            exists=result[b"EXISTS"],
+        )
 
 
 @dataclasses.dataclass
 class LocalFolder:
     id: int
     name: str
     state: str
-    uidnext: int
+    uidmax: int
     exists: int
 
 
 def fetch_local_folders(account: LocalAccount) -> Iterable[LocalFolder]:
     with global_session_scope() as db_session:
-        for folder in db_session.query(Folder).filter(Folder.account_id == account.id):
+        for folder in (
+            db_session.query(Folder)
+            .filter(Folder.account_id == account.id)
+            .order_by(Folder.name)
+        ):
             exists = (
                 db_session.query(ImapUid).filter(ImapUid.folder_id == folder.id).count()
             )
-            uidnext = (
-                (
-                    db_session.query(ImapUid.msg_uid)
-                    .filter(ImapUid.folder_id == folder.id)
-                    .order_by(ImapUid.msg_uid.desc())
-                    .limit(1)
-                    .scalar()
-                )
-                or 0
-            ) + 1
+            uidmax = (
+                db_session.query(ImapUid.msg_uid)
+                .filter(ImapUid.folder_id == folder.id)
+                .order_by(ImapUid.msg_uid.desc())
+                .limit(1)
+                .scalar()
+            ) or 0
             yield LocalFolder(
                 id=folder.id,
                 name=folder.name,
                 state=folder.imapsyncstatus.state,
-                uidnext=uidnext,
+                uidmax=uidmax,
                 exists=exists,
             )
 
 
+@dataclasses.dataclass
+class SummarizedList:
+    value: list
+    max_values: int = 10
+
+    def __repr__(self):
+        if len(self.value) <= self.max_values:
+            return repr(self.value)
+
+        return f"[{self.value[0]}, ... ,{self.value[-1]} len={len(self.value)}]"
+
+
+@dataclasses.dataclass
+class LocalFolderDiff:
+    name: str
+    uids_to_add: list[int]
+    uids_to_delete: list[int]
+
+
+@dataclasses.dataclass
+class LocalFolderMissing:
+    name: str
+
+
+def compare_local_and_remote(
+    crispin_client: CrispinClient,
+    remote_folders: list[RemoteFolder],
+    local_folders: list[LocalFolder],
+):
+    remote_folders_by_name = {folder.name: folder for folder in remote_folders}
+    local_folders_by_name = {folder.name: folder for folder in local_folders}
+
+    for name, remote_folder in remote_folders_by_name.items():
+        local_folder = local_folders_by_name.get(name)
+        if not local_folder:
+            yield LocalFolderMissing(name=name)
+
+        if local_folder.exists == remote_folder.exists:
+            continue
+
+        crispin_client.select_folder(
+            local_folder.name,
+            lambda _account_id, _folder_name, select_info: select_info,
+        )
+        remote_uids = set(crispin_client.all_uids())
+        with global_session_scope() as db_session:
+            local_uids = set(
+                uid
+                for uid, in db_session.query(ImapUid.msg_uid).filter(
+                    ImapUid.folder_id == local_folder.id
+                )
+            )
+
+        uids_to_add = remote_uids - local_uids
+        uids_to_delete = local_uids - remote_uids
+
+        yield LocalFolderDiff(
+            name=local_folder.name,
+            uids_to_add=SummarizedList(sorted(uids_to_add)),
+            uids_to_delete=SummarizedList(sorted(uids_to_delete)),
+        )
+
+
 @click.command()
 @click.option("--host", default=None)
 @click.option("--account-id", default=None)
@@ -163,18 +227,22 @@ def main(host: "str | None", account_id: "str | None", include_server_info: bool
                     print()
 
                 total_folder_remote_exists = 0
+                remote_folders = []
                 for remote_folder in fetch_remote_folders(
                     account.provider, crispin_client
                 ):
                     print("\t", remote_folder)
+                    remote_folders.append(remote_folder)
                     total_folder_remote_exists += remote_folder.exists
                     total_remote_exists += remote_folder.exists
                 print("\t Total remote EXISTS:", total_folder_remote_exists)
                 print()
 
                 total_folder_local_exists = 0
+                local_folders = []
                 for local_folder in fetch_local_folders(account):
                     print("\t", local_folder)
+                    local_folders.append(local_folder)
                     total_folder_local_exists += local_folder.exists
                     total_local_exists += local_folder.exists
                 print("\t Total local EXISTS:", total_folder_local_exists)
@@ -183,6 +251,12 @@ def main(host: "str | None", account_id: "str | None", include_server_info: bool
                     total_folder_remote_exists - total_folder_local_exists,
                 )
                 print()
+
+                for diff in compare_local_and_remote(
+                    crispin_client, remote_folders, local_folders
+                ):
+                    print("\t", diff)
+                print()
         except Exception as e:
             print("\t Exception opening the connection", e)
             print()