From b3207b5ce03d506cef25f5f8442146e0c575a44c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B9=80=ED=98=9C=EC=9D=B8?= <hikim2@samaneng.com>
Date: Mon, 4 May 2026 10:05:38 +0900
Subject: [PATCH] fix(management): compute applied/common admin expense by
 monthly active project distribution

---
 server/ptc_api_server.py | 42 ++++++++++++++++++++++++++++++----------
 1 file changed, 32 insertions(+), 10 deletions(-)

diff --git a/server/ptc_api_server.py b/server/ptc_api_server.py
index 5f846c7..f4c697a 100644
--- a/server/ptc_api_server.py
+++ b/server/ptc_api_server.py
@@ -3487,25 +3487,47 @@ class Handler(BaseHTTPRequestHandler):
                         }
                     )
 
-                management_split_rows = conn.execute(
+                construction_project_rows = conn.execute(
+                    """
+                    select
+                        pm.project_code,
+                        pm.start_date,
+                        pm.end_date,
+                        min(case when coalesce(t.transaction_date, '') <> '' then t.transaction_date end) as min_tx_date,
+                        max(case when coalesce(t.transaction_date, '') <> '' then t.transaction_date end) as max_tx_date
+                    from project_master pm
+                    left join ptc_transactions t on t.project_code = pm.project_code
+                    where coalesce(pm.project_type, '') = '시공'
+                    group by pm.project_code, pm.start_date, pm.end_date
+                    """
+                ).fetchall()
+                active_counts_by_month: dict[str, int] = defaultdict(int)
+                for row in construction_project_rows:
+                    start_ym = _to_year_month(row["start_date"]) or _to_year_month(row["min_tx_date"])
+                    end_ym = _to_year_month(row["end_date"]) or _to_year_month(row["max_tx_date"]) or start_ym
+                    if not start_ym or not end_ym:
+                        continue
+                    for ym in _iter_year_months(start_ym, end_ym):
+                        active_counts_by_month[ym] += 1
+
+                monthly_management_pool_rows = conn.execute(
                     f"""
                     select
-                        substr(coalesce(transaction_date, ''), 1, 4) as year,
-                        coalesce(project_code, '') as project_code,
+                        substr(coalesce(transaction_date, ''), 1, 7) as ym,
                         account_code_final as account_code,
                         coalesce(sum(case when in_out = '출금' then supply_amount else 0 end), 0) as expense_supply
                     from ptc_transactions
                     {where}
-                    group by substr(coalesce(transaction_date, ''), 1, 4), coalesce(project_code, ''), account_code_final
-                    having year <> ''
+                    group by substr(coalesce(transaction_date, ''), 1, 7), account_code_final
+                    having ym <> ''
                     """,
                     values,
                 ).fetchall()
 
-                for row in management_split_rows:
-                    year = (row["year"] or "").strip() or "미상"
+                for row in monthly_management_pool_rows:
+                    ym = (row["ym"] or "").strip()
+                    year = ym[:4] if len(ym) >= 4 else "미상"
                     account_code = (row["account_code"] or "").strip()
-                    project_code = (row["project_code"] or "").strip()
                     expense_supply = float(row["expense_supply"] or 0)
                     if not account_code or expense_supply == 0:
                         continue
@@ -3527,8 +3549,8 @@ class Handler(BaseHTTPRequestHandler):
                             "excluded_expense_total": 0.0,
                             "excluded_accounts": [],
                         }
-                    is_project_applied = bool(project_code) and "-관리-" not in project_code
-                    if is_project_applied:
+                    active_count = int(active_counts_by_month.get(ym) or 0)
+                    if active_count > 0:
                         by_year[year]["project_applied_admin_expense"] += expense_supply
                     else:
                         by_year[year]["common_admin_expense"] += expense_supply