Support per-person shift pay rates

Each roster entry can now have its own shift_rate, falling back to the
global CONFIG rate when not set. Pay breakdowns show individual rates
per shift and per-person totals.

src/app.py

@@ -171,7 +171,7 @@ def create_app(bot_token: str, signing_secret: str) -> App:
             prev_sunday = prev_monday + timedelta(days=6)
             week_label = f"{prev_monday.strftime('%b %-d')} to {prev_sunday.strftime('%b %-d')}"
             blocks = build_pay_summary_blocks(
-                week_label, pay_record["breakdown"], pay_record["totals"], float(pay_record["rate"])
+                week_label, pay_record["breakdown"], pay_record["totals"]
             )
             respond(blocks=blocks)
         else:

src/blocks.py

@@ -120,22 +120,22 @@ def build_help_blocks() -> list[dict]:
     return [{"type": "section", "text": {"type": "mrkdwn", "text": text}}]
 
 
-def build_pay_summary_blocks(week_label: str, pay_breakdown: list[dict], total_by_person: dict[str, dict], rate: float) -> list[dict]:
+def build_pay_summary_blocks(week_label: str, pay_breakdown: list[dict], total_by_person: dict[str, dict]) -> list[dict]:
     """Build Block Kit blocks for the weekly pay summary.
 
     Args:
         week_label: e.g. "Mar 30 to Apr 5"
         pay_breakdown: list of {date, day, name, extension, rate} per shift
-        total_by_person: {name: {shifts: int, total: float, extension: str}}
-        rate: flat rate per shift
+        total_by_person: {name: {shifts: int, total: float, extension: str, rate: float}}
     """
-    lines = [f"_Rate: ${rate:.2f} per shift_\n"]
+    lines = []
     for entry in pay_breakdown:
-        lines.append(f"{entry['day']} {entry['date_label']} — {entry['name']} (Ext {entry['extension']})")
+        lines.append(f"{entry['day']} {entry['date_label']} — {entry['name']} (Ext {entry['extension']}) — ${entry['rate']:.2f}")
 
     lines.append("\n*Totals:*")
     for name, info in sorted(total_by_person.items()):
-        lines.append(f"• {name} — {info['shifts']} shift{'s' if info['shifts'] != 1 else ''} — *${info['total']:.2f}*")
+        rate_note = f" @ ${info['rate']:.2f}/shift" if info.get("rate") else ""
+        lines.append(f"• {name} — {info['shifts']} shift{'s' if info['shifts'] != 1 else ''}{rate_note} — *${info['total']:.2f}*")
 
     blocks = [
         {

src/schedule.py

@@ -127,7 +127,15 @@ class ShiftSchedule:
         resp = self.table.get_item(Key={"PK": "CONFIG", "SK": "CONFIG"})
         return resp.get("Item", {})
 
-    def get_shift_rate(self) -> float:
-        """Get the flat per-shift pay rate from config."""
+    def get_shift_rate(self, extension: str | None = None) -> float:
+        """Get the per-shift pay rate.
+
+        Checks the roster entry for a person-specific rate first,
+        then falls back to the global config rate.
+        """
+        if extension:
+            employee = self.get_employee_by_extension(extension)
+            if employee and employee.get("shift_rate"):
+                return float(employee["shift_rate"])
         config = self.get_config()
         return float(config.get("shift_rate", 0))

src/weekly_post.py

@@ -22,7 +22,7 @@ DAY_ORDER = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday",
 
 def _calculate_weekly_pay(schedule: ShiftSchedule, week_start: datetime) -> dict:
     """Calculate pay for a Mon–Sun week. Returns pay record dict."""
-    rate = schedule.get_shift_rate()
+    default_rate = schedule.get_shift_rate()
     breakdown = []
     totals = {}
 
@@ -35,6 +35,8 @@ def _calculate_weekly_pay(schedule: ShiftSchedule, week_start: datetime) -> dict
         if source == "available":
             continue
 
+        rate = schedule.get_shift_rate(ext)
+
         breakdown.append({
             "date": date_str,
             "date_label": date.strftime("%b %-d"),
@@ -45,13 +47,13 @@ def _calculate_weekly_pay(schedule: ShiftSchedule, week_start: datetime) -> dict
         })
 
         if name not in totals:
-            totals[name] = {"shifts": 0, "total": 0.0, "extension": ext}
+            totals[name] = {"shifts": 0, "total": 0.0, "extension": ext, "rate": rate}
         totals[name]["shifts"] += 1
         totals[name]["total"] += rate
 
     return {
         "week_start": week_start.strftime("%Y-%m-%d"),
-        "rate": str(rate),
+        "default_rate": str(default_rate),
         "breakdown": breakdown,
         "totals": totals,
     }
@@ -88,7 +90,7 @@ def handler(event, context):
         prev_sunday = prev_monday + timedelta(days=6)
         week_label = f"{prev_monday.strftime('%b %-d')} to {prev_sunday.strftime('%b %-d')}"
         pay_blocks = build_pay_summary_blocks(
-            week_label, pay_record["breakdown"], pay_record["totals"], float(pay_record["rate"])
+            week_label, pay_record["breakdown"], pay_record["totals"]
         )
         slack.chat_postMessage(
             channel=channel_id,