feat: integrate cascade filter workflow

dea_api.py

@@ -2,7 +2,7 @@ from fastapi import FastAPI, File, Form, HTTPException, Request, UploadFile
 from fastapi.responses import RedirectResponse, StreamingResponse
 from fastapi.staticfiles import StaticFiles
 
-from dea.bode import calculate_bode_compare_response, calculate_bode_response
+from dea.bode import calculate_bode_cascade_response, calculate_bode_compare_response, calculate_bode_response
 from dea.config import (
     BODE_MAX_MULTIPLIER,
     BODE_POINTS,
@@ -19,7 +19,7 @@ from dea.csv_processing import (
 )
 from dea.filter_design import design_response
 from dea.mcu import list_mcu_ports_response, write_mcu_command_response
-from dea.schemas import BodeCompareParams, BodeParams, DesignParams, MCUWriteParams
+from dea.schemas import BodeCascadeParams, BodeCompareParams, BodeParams, DesignParams, MCUWriteParams
 from dea.security import (
     SECURITY_HEADERS,
     add_security_headers,
@@ -87,6 +87,16 @@ def calculate_bode_compare(params: BodeCompareParams):
         raise HTTPException(status_code=400, detail=str(e))
 
 
+@app.post("/api/bode/compare_cascade")
+def calculate_bode_compare_cascade(params: BodeCascadeParams):
+    try:
+        return calculate_bode_cascade_response(params)
+    except HTTPException:
+        raise
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
 @app.post("/api/csv/upload")
 async def upload_csv(file: UploadFile = File(...)):
     try:
@@ -99,6 +109,28 @@ async def upload_csv(file: UploadFile = File(...)):
         raise HTTPException(status_code=400, detail=f"CSV上傳失敗: {str(e)}")
 
 
+def parse_stages_list(stages_str: str):
+    if not isinstance(stages_str, str) or not stages_str:
+        return None
+    import json
+    stages_raw = json.loads(stages_str)
+    stages_list = []
+    for i, stage in enumerate(stages_raw):
+        stages_list.append({
+            "b": parse_coefficients(stage.get("b_str", ""), f"stages[{i}].b"),
+            "a": parse_coefficients(stage.get("a_str", ""), f"stages[{i}].a"),
+            "b_int": parse_int_coefficients(stage.get("b_int_str", ""), f"stages[{i}].b_int") if stage.get("b_int_str") else None,
+            "a_int": parse_int_coefficients(stage.get("a_int_str", ""), f"stages[{i}].a_int") if stage.get("a_int_str") else None,
+            "shift_in": int(stage.get("shift_in", 14)),
+            "shift_out": int(stage.get("shift_out", 14)),
+            "shift_b": int(stage.get("shift_b", 14)),
+            "shift_a": int(stage.get("shift_a", 14)),
+            "use_round": bool(stage.get("use_round", False)),
+            "isActive": bool(stage.get("isActive", True)),
+        })
+    return stages_list
+
+
 @app.post("/api/filter")
 async def filter_csv(
     file_id: str = Form(...),
@@ -112,20 +144,27 @@ async def filter_csv(
     shift_b: int = Form(14),
     shift_a: int = Form(14),
     use_round: bool = Form(False),
+    stages: str = Form(None),
+    start_idx: int = Form(None),
+    end_idx: int = Form(None),
 ):
     try:
         b_vals = parse_coefficients(b, "b")
         a_vals = parse_coefficients(a, "a")
 
-        b_int_vals = parse_int_coefficients(b_int, "b_int") if b_int else None
-        a_int_vals = parse_int_coefficients(a_int, "a_int") if a_int else None
+        b_int_vals = parse_int_coefficients(b_int, "b_int") if isinstance(b_int, str) and b_int else None
+        a_int_vals = parse_int_coefficients(a_int, "a_int") if isinstance(a_int, str) and a_int else None
+        stages_list = parse_stages_list(stages)
 
         return filter_preview_response(
             file_id, b_vals, a_vals, col_idx,
             b_int=b_int_vals, a_int=a_int_vals,
             shift_in=shift_in, shift_out=shift_out,
             shift_b=shift_b, shift_a=shift_a,
-            use_round=use_round
+            use_round=use_round,
+            stages=stages_list,
+            start_idx=start_idx,
+            end_idx=end_idx
         )
     except HTTPException:
         raise
@@ -167,20 +206,28 @@ async def filter_csv_download(
     shift_b: int = Form(14),
     shift_a: int = Form(14),
     use_round: bool = Form(False),
+    stages: str = Form(None),
+    fs: float = Form(100000.0),
+    compact: bool = Form(False),
 ):
     try:
         b_vals = parse_coefficients(b, "b")
         a_vals = parse_coefficients(a, "a")
 
-        b_int_vals = parse_int_coefficients(b_int, "b_int") if b_int else None
-        a_int_vals = parse_int_coefficients(a_int, "a_int") if a_int else None
+        b_int_vals = parse_int_coefficients(b_int, "b_int") if isinstance(b_int, str) and b_int else None
+        a_int_vals = parse_int_coefficients(a_int, "a_int") if isinstance(a_int, str) and a_int else None
+        stages_list = parse_stages_list(stages)
+        compact_value = compact if isinstance(compact, bool) else False
 
         csv_text = filtered_csv_text(
             file_id, b_vals, a_vals, col_idx,
             b_int=b_int_vals, a_int=a_int_vals,
             shift_in=shift_in, shift_out=shift_out,
             shift_b=shift_b, shift_a=shift_a,
-            use_round=use_round
+            use_round=use_round,
+            stages=stages_list,
+            fs=fs,
+            compact=compact_value
         )
 
         return StreamingResponse(