Add Download Multiple file .zip

state.py

@@ -89,6 +89,60 @@ def convert_df(df):
     return df.to_csv(index=False).encode("utf-8")
 
 
+def build_all_csv_zip():
+    """Build an in-memory ZIP containing one CSV per analyzed file.
+
+    Applies the same transformations as the single-file download:
+    drop Task, rename Resource -> Speaker, sort by Start, add Role.
+    Returns raw ZIP bytes ready for st.download_button.
+    """
+    import io
+    import zipfile
+
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w", zipfile.ZIP_DEFLATED) as zf:
+        for fname, result in st.session_state.results.items():
+            if len(result) != 2:
+                continue
+            try:
+                annotation, _ = result
+                currDF, _ = su.annotationToSimpleDataFrame(annotation)
+
+                # Apply speaker renames
+                renames = st.session_state.speakerRenames.get(fname, {})
+                currDF = currDF.copy()
+                if "Resource" in currDF.columns:
+                    currDF["Resource"] = currDF["Resource"].apply(
+                        lambda s: renames.get(s, s)
+                    )
+
+                # Add Role column (raw speaker -> role, before rename applied above,
+                # so look up by renamed value since we already applied renames)
+                raw_to_role = {
+                    renames.get(token.split(": ", 1)[1], token.split(": ", 1)[1]):
+                        st.session_state.categories[i]
+                    for i, tokens in enumerate(st.session_state.categorySelect)
+                    for token in tokens
+                    if token.startswith(f"{fname}: ")
+                }
+                currDF["Role"] = currDF["Resource"].map(raw_to_role).fillna("")
+                currDF = currDF.drop(columns=["Task"], errors="ignore")
+                currDF = currDF.rename(columns={"Resource": "Speaker"})
+                if "Start" in currDF.columns:
+                    currDF = currDF.sort_values("Start").reset_index(drop=True)
+
+                plain_name = fname.rsplit(".", 1)[0]
+                zf.writestr(
+                    f"sonogram-analysis-{plain_name}.csv",
+                    currDF.to_csv(index=False)
+                )
+            except Exception as e:
+                print(f"build_all_csv_zip: skipping {fname} — {e}")
+
+    buf.seek(0)
+    return buf.read()
+
+
 # ---------------------------------------------------------------------------
 # Category callbacks
 # ---------------------------------------------------------------------------