diff --git a/engine/__pycache__/constants.cpython-313.pyc b/engine/__pycache__/constants.cpython-313.pyc
index 4fb2aea..1385e17 100644
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diff --git a/engine/__pycache__/engine.cpython-313.pyc b/engine/__pycache__/engine.cpython-313.pyc
index 1cc0e0e..1ef34dc 100644
Binary files a/engine/__pycache__/engine.cpython-313.pyc and b/engine/__pycache__/engine.cpython-313.pyc differ
diff --git a/engine/constants.py b/engine/constants.py
index 6a0673f..01a3662 100644
--- a/engine/constants.py
+++ b/engine/constants.py
@@ -1 +1 @@
-BATCH_SIZE = 1000
\ No newline at end of file
+BATCH_SIZE = 250
\ No newline at end of file
diff --git a/engine/engine.py b/engine/engine.py
index 11e483c..e58a469 100644
--- a/engine/engine.py
+++ b/engine/engine.py
@@ -15,6 +15,32 @@ def run_once():
             log_info("[INFO] Aucune course active.")
             return
 
+        # -------------------------------------------------
+        #  Appliquer les PAUSE_REQUEST avant tout traitement
+        # -------------------------------------------------
+        active_courses = get_active_con_ids(cur)
+
+        for con_id in active_courses:
+
+            engine_table = f"resultv2_{con_id}_lecture"
+
+            # Lire le statut actuel
+            cur.execute(f"SELECT process_status FROM `{engine_table}` LIMIT 1")
+            row = cur.fetchone()
+
+            if not row:
+                continue
+
+            status = (row["process_status"] or "").upper()
+
+            # Si CI4 a demandé une pause → Python applique la pause maintenant
+            if status == "PAUSE_REQUEST":
+                cur.execute(f"UPDATE `{engine_table}` SET process_status = 'PAUSE'")
+                cnx.commit()
+                log_info(f"[PAUSE APPLIED] con_id={con_id}")
+
+
+
         for con_id in con_ids:
             process_course(cur, cnx, con_id)
 
@@ -30,4 +56,21 @@ def run_once():
 
 
 if __name__ == "__main__":
-    run_once()
+    import time
+    import msvcrt  # Spécifique Windows
+
+    log_info("[TEST MODE] Boucle continue — appuyer ENTER pour arrêter.")
+
+    try:
+        while True:
+            run_once()
+            time.sleep(0.5)
+
+            if msvcrt.kbhit():              # Une touche a été pressée
+                key = msvcrt.getch()
+                if key == b'\r':            # ENTER = arrêt
+                    log_info("[TEST MODE] Arrêt demandé via ENTER.")
+                    break
+
+    except KeyboardInterrupt:
+        log_info("[TEST MODE] Arrêt via CTRL+C.")
diff --git a/engine/engine_components/__pycache__/process_course.cpython-313.pyc b/engine/engine_components/__pycache__/process_course.cpython-313.pyc
index b8adb22..6a4c930 100644
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diff --git a/engine/engine_components/__pycache__/regles.cpython-313.pyc b/engine/engine_components/__pycache__/regles.cpython-313.pyc
new file mode 100644
index 0000000..2fb38a8
Binary files /dev/null and b/engine/engine_components/__pycache__/regles.cpython-313.pyc differ
diff --git a/engine/engine_components/process_course.py b/engine/engine_components/process_course.py
index cc1591d..cd7b4f6 100644
--- a/engine/engine_components/process_course.py
+++ b/engine/engine_components/process_course.py
@@ -9,6 +9,7 @@ from datetime import datetime, timezone
 from zoneinfo import ZoneInfo
 from decimal import Decimal
 from engine.utils import format_temps_decimal
+from engine.engine_components.regles import resolve_priority
 
 LOCAL_TZ = ZoneInfo("America/Toronto")
 
@@ -59,6 +60,30 @@ def process_course(cur, cnx, con_id: int):
     engine_table     = f"resultv2_{con_id}_lecture"
     classement_table = f"resultv2_{con_id}_classement"
 
+    # -------------------------------------------------
+    #  Pause
+    # -------------------------------------------------
+
+    # Lire le statut
+    cur.execute(f"SELECT process_status FROM `{engine_table}` LIMIT 1")
+    row = cur.fetchone()
+    status = (row["process_status"] or "").upper()
+
+    # Si une pause est demandée
+    if status == "PAUSE_REQUEST":
+        # Le moteur se met officiellement en PAUSE
+        cur.execute(f"UPDATE `{engine_table}` SET process_status = 'PAUSE'")
+        cnx.commit()
+        log_info(f"[PAUSE] con_id={con_id} — pause appliquée avant traitement.")
+        return
+
+    # Si déjà en pause → sortir immédiatement
+    if status == "PAUSE":
+        log_info(f"[PAUSE] con_id={con_id} — course déjà en pause.")
+        return
+
+
+
     # -------------------------------------------------
     #  Lire dernier ID traité (mécanisme incremental)
     # -------------------------------------------------
@@ -84,6 +109,8 @@ def process_course(cur, cnx, con_id: int):
     # -------------------------------------------------
     for lec in lectures:
 
+ 
+        
         rcourse_id = int(lec["rcourse_id"])
         chr_loc    = lec["chrinfo_location"]
         timestamp  = Decimal(lec["chrinfo_time"])
@@ -249,94 +276,4 @@ def compute_tour(cur, detail_table, tp_id, dossard):
     return last_tour + 1, prev_ts
 
 
-# -------------------------------------------------
-#  Règle de priorité : remplace, rejette, ou force tour
-# -------------------------------------------------
-def resolve_priority(
-    cur,
-    cnx,
-    detail_table,
-    tp_id,
-    dossard,
-    new_timestamp,
-    new_priority,
-    det_id,
-    tp_config
-):
-
-    # -------------------------------------------------
-    #  Lecture de la fenêtre backup pour priorité
-    # -------------------------------------------------
-    cfg = (
-        tp_config[tp_id]["config"]
-        .get("config_tp", {})
-        .get("clef_temp_bbk", [])
-    )
-
-    backup_window = 0
-    if cfg:
-        try:
-            backup_window = int(cfg[0]["value1"])
-        except:
-            backup_window = 0
-
-    log_debug(f"[resolve_priority] backup_window={backup_window}")
-
-    # -------------------------------------------------
-    #  Si backup_window = 0 → toujours accepter
-    # -------------------------------------------------
-    if backup_window <= 0:
-        return 1, None, None, None
-
-    # -------------------------------------------------
-    #  Recherche d'une lecture existante dans la fenêtre
-    # -------------------------------------------------
-    cur.execute(f"""
-        SELECT detail_id, controller_priority, timestamp_read, tour
-        FROM `{detail_table}`
-        WHERE tp_id = %s
-          AND cla_info_dossard = %s
-          AND status = 1
-          AND ABS(timestamp_read - %s) <= %s
-        LIMIT 1
-    """, (tp_id, dossard, str(new_timestamp), backup_window))
-
-    row = cur.fetchone()
-
-    # -------------------------------------------------
-    #  Aucun doublon → accepter
-    # -------------------------------------------------
-    if not row:
-        return 1, None, None, None
-
-    old_id       = row["detail_id"]
-    old_priority = row["controller_priority"]
-    old_tour     = row["tour"]
-
-    # -------------------------------------------------
-    #  Comparaison des priorités
-    # -------------------------------------------------
-
-    # Nouvelle lecture moins prioritaire → rejet
-    if new_priority > old_priority:
-        return 0, "LOWER_PRIORITY", det_id, None
-
-    # Nouvelle lecture plus prioritaire → remplacer
-    if new_priority < old_priority:
-
-        cur.execute(f"""
-            UPDATE `{detail_table}`
-            SET
-                status = 0,
-                reason_code = 'REPLACED_BY_HIGHER_PRIORITY',
-                reason_ref_id = %s
-            WHERE detail_id = %s
-        """, (det_id, old_id))
-
-        cnx.commit()
-
-        forced_tour = old_tour
-        return 1, None, None, forced_tour
-
-    # Même priorité → rejet
-    return 0, "EQUAL_PRIORITY", det_id, None
+ 
\ No newline at end of file
diff --git a/engine/engine_components/regles.py b/engine/engine_components/regles.py
new file mode 100644
index 0000000..677d2d1
--- /dev/null
+++ b/engine/engine_components/regles.py
@@ -0,0 +1,93 @@
+# regles.py
+from engine.logger import log_info, log_debug
+# -------------------------------------------------
+#  Règle de priorité : remplace, rejette, ou force tour
+# -------------------------------------------------
+def resolve_priority(
+    cur,
+    cnx,
+    detail_table,
+    tp_id,
+    dossard,
+    new_timestamp,
+    new_priority,
+    det_id,
+    tp_config
+):
+
+    # -------------------------------------------------
+    #  Lecture de la fenêtre backup pour priorité
+    # -------------------------------------------------
+    cfg = (
+        tp_config[tp_id]["config"]
+        .get("config_tp", {})
+        .get("clef_temp_bbk", [])
+    )
+
+    backup_window = 0
+    if cfg:
+        try:
+            backup_window = int(cfg[0]["value1"])
+        except:
+            backup_window = 0
+
+    log_debug(f"[resolve_priority] backup_window={backup_window}")
+
+    # -------------------------------------------------
+    #  Si backup_window = 0 → toujours accepter
+    # -------------------------------------------------
+    if backup_window <= 0:
+        return 1, None, None, None
+
+    # -------------------------------------------------
+    #  Recherche d'une lecture existante dans la fenêtre
+    # -------------------------------------------------
+    cur.execute(f"""
+        SELECT detail_id, controller_priority, timestamp_read, tour
+        FROM `{detail_table}`
+        WHERE tp_id = %s
+          AND cla_info_dossard = %s
+          AND status = 1
+          AND ABS(timestamp_read - %s) <= %s
+        LIMIT 1
+    """, (tp_id, dossard, str(new_timestamp), backup_window))
+
+    row = cur.fetchone()
+
+    # -------------------------------------------------
+    #  Aucun doublon → accepter
+    # -------------------------------------------------
+    if not row:
+        return 1, None, None, None
+
+    old_id       = row["detail_id"]
+    old_priority = row["controller_priority"]
+    old_tour     = row["tour"]
+
+    # -------------------------------------------------
+    #  Comparaison des priorités
+    # -------------------------------------------------
+
+    # Nouvelle lecture moins prioritaire → rejet
+    if new_priority > old_priority:
+        return 0, "LOWER_PRIORITY", det_id, None
+
+    # Nouvelle lecture plus prioritaire → remplacer
+    if new_priority < old_priority:
+
+        cur.execute(f"""
+            UPDATE `{detail_table}`
+            SET
+                status = 0,
+                reason_code = 'REPLACED_BY_HIGHER_PRIORITY',
+                reason_ref_id = %s
+            WHERE detail_id = %s
+        """, (det_id, old_id))
+
+        cnx.commit()
+
+        forced_tour = old_tour
+        return 1, None, None, forced_tour
+
+    # Même priorité → rejet
+    return 0, "EQUAL_PRIORITY", det_id, None