add project

ui_fragments/video_manager.py

@@ -0,0 +1,45 @@
+import streamlit as st
+from utils.callbacks import toggle_all_video_checkboxes, callback_delete_selected_videos
+
+@st.fragment
+def video_management_fragment(paths):
+    """A self-contained fragment for managing and deleting project videos."""
+    with st.expander("🎬 管理專案影片素材"):
+        output_dir = paths["output"]
+        video_files = []
+        if output_dir.exists():
+            video_files = sorted(
+                [f for f in output_dir.iterdir() if f.suffix.lower() in ['.mp4', '.mov']],
+                key=lambda f: f.stat().st_mtime,
+                reverse=True
+            )
+
+        if not video_files:
+            st.info("專案輸出資料夾 (`/output`) 中目前沒有影片檔。")
+        else:
+            all_selected = all(st.session_state.get(f"delete_cb_{f.name}", False) for f in video_files)
+            if st.session_state.get('select_all_videos', False) != all_selected:
+                st.session_state.select_all_videos = all_selected
+
+            st.markdown("勾選您想要刪除的影片，然後點擊下方的按鈕。")
+            
+            st.checkbox(
+                "全選/取消全選", 
+                key="select_all_videos", 
+                on_change=toggle_all_video_checkboxes, 
+                args=(video_files,)
+            )
+            
+            with st.form("delete_videos_form"):
+                for video_file in video_files:
+                    file_size_mb = video_file.stat().st_size / (1024 * 1024)
+                    st.checkbox(
+                        f"**{video_file.name}** ({file_size_mb:.2f} MB)",
+                        key=f"delete_cb_{video_file.name}"
+                    )
+
+                submitted = st.form_submit_button("🟥 確認刪除選取的影片", use_container_width=True, type="primary")
+                
+                if submitted:
+                    callback_delete_selected_videos(paths)
+                    st.rerun(scope="fragment")