From e6c01557588055ef9bed4579d0100f4cc5a31744 Mon Sep 17 00:00:00 2001
From: "ewerton.almeida" <ewerton.almeida@localhost.com>
Date: Wed, 13 Aug 2025 21:51:49 -0300
Subject: [PATCH] Quatro casas decimais ao gerar o excel para os campos ICMS
 (%), ICMS (%) (UF/Ref), Dif. ICMS (pp), PIS (%), COFINS (%)

---
 app/main.py | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/app/main.py b/app/main.py
index f2390ce..d0daa2e 100644
--- a/app/main.py
+++ b/app/main.py
@@ -487,12 +487,30 @@ async def export_excel(
                 })
             filename = "relatorio_geral.xlsx"
 
-        # 3) Excel em memória
-        output = BytesIO()
-        df = pd.DataFrame(dados)
-        with pd.ExcelWriter(output, engine="xlsxwriter") as writer:
-            df.to_excel(writer, index=False, sheet_name="Relatório")
-        output.seek(0)
+    # 3) Excel em memória
+    output = BytesIO()
+    df = pd.DataFrame(dados)
+
+    # garante que colunas percentuais estejam numéricas (se existirem)
+    for col in ["ICMS (%)", "ICMS (%) (UF/Ref)", "Dif. ICMS (pp)", "PIS (%)", "COFINS (%)"]:
+        if col in df.columns:
+            df[col] = pd.to_numeric(df[col], errors="coerce")
+
+    with pd.ExcelWriter(output, engine="xlsxwriter") as writer:
+        df.to_excel(writer, index=False, sheet_name="Relatório")
+
+        # aplica formatação 4 casas decimais
+        wb = writer.book
+        ws = writer.sheets["Relatório"]
+        fmt_4dec = wb.add_format({"num_format": "0.0000"})
+
+        for col in ["ICMS (%)", "ICMS (%) (UF/Ref)", "Dif. ICMS (pp)", "PIS (%)", "COFINS (%)"]:
+            if col in df.columns:
+                i = df.columns.get_loc(col)
+                # largura automática básica + formato; ajuste a largura se quiser (ex.: 12)
+                ws.set_column(i, i, None, fmt_4dec)
+
+    output.seek(0)
 
     return StreamingResponse(
         output,