the rest of the refactor

cht/ui/session_dialog.py

@@ -0,0 +1,106 @@
+"""Session browser dialog — lists sessions, supports load and delete."""
+
+import json
+import logging
+
+import gi
+gi.require_version("Gtk", "4.0")
+gi.require_version("Adw", "1")
+from gi.repository import Gtk, Adw, GObject
+
+from cht.stream.manager import list_sessions, delete_sessions
+
+log = logging.getLogger(__name__)
+
+
+class SessionDialog(Adw.Window):
+    """Modal dialog listing sessions. Emits 'session-selected' with session id."""
+
+    __gsignals__ = {
+        "session-selected": (GObject.SignalFlags.RUN_FIRST, None, (str,)),
+    }
+
+    def __init__(self, parent, **kwargs):
+        super().__init__(transient_for=parent, modal=True, **kwargs)
+        self.set_title("Load Session")
+        self.set_default_size(500, 400)
+
+        sessions = list_sessions()
+
+        toolbar = Adw.ToolbarView()
+        header = Adw.HeaderBar()
+
+        select_all_btn = Gtk.CheckButton(label="All")
+        header.pack_start(select_all_btn)
+
+        delete_btn = Gtk.Button(label="Delete")
+        delete_btn.add_css_class("destructive-action")
+        header.pack_end(delete_btn)
+
+        toolbar.add_top_bar(header)
+
+        scroll = Gtk.ScrolledWindow()
+        scroll.set_vexpand(True)
+        listbox = Gtk.ListBox()
+        listbox.set_selection_mode(Gtk.SelectionMode.NONE)
+        listbox.add_css_class("boxed-list")
+
+        checks: list[tuple[str, Gtk.CheckButton]] = []
+
+        for sid, sdir in sessions:
+            idx = sdir / "frames" / "index.json"
+            nframes = 0
+            try:
+                nframes = len(json.loads(idx.read_text()))
+            except Exception:
+                pass
+            nrec = len(list((sdir / "stream").glob("recording_*.mp4")))
+
+            check = Gtk.CheckButton()
+            checks.append((sid, check))
+
+            row = Adw.ActionRow()
+            row.set_title(sid)
+            row.set_subtitle(f"{nframes} frames, {nrec} segments")
+            row.set_activatable(True)
+            row.add_prefix(check)
+
+            def _on_row_activated(r, s=sid):
+                self.close()
+                self.emit("session-selected", s)
+            row.connect("activated", _on_row_activated)
+            listbox.append(row)
+
+        def _on_select_all(btn):
+            active = btn.get_active()
+            for _, cb in checks:
+                cb.set_active(active)
+        select_all_btn.connect("toggled", _on_select_all)
+
+        def _on_delete(btn):
+            to_delete = [sid for sid, cb in checks if cb.get_active()]
+            if not to_delete:
+                return
+            if self._current_session in to_delete:
+                to_delete.remove(self._current_session)
+            if to_delete:
+                delete_sessions(to_delete)
+                self.close()
+                # Re-open with updated list
+                new_dialog = SessionDialog(self.get_transient_for())
+                new_dialog._current_session = self._current_session
+                # Forward the signal
+                new_dialog.connect("session-selected",
+                                   lambda d, s: self.emit("session-selected", s))
+                new_dialog.present()
+        delete_btn.connect("clicked", _on_delete)
+
+        scroll.set_child(listbox)
+        toolbar.set_content(scroll)
+        self.set_content(toolbar)
+
+        self._current_session = None
+
+    def set_current_session(self, session_id: str | None) -> None:
+        """Set the active session id so it won't be deleted."""
+        self._current_session = session_id