feat(dashboard): rewrite /api/cron for echo-core flat schema

dashboard/handlers/cron.py

@@ -1,23 +1,60 @@
-"""/api/cron endpoint — currently reads clawdbot jobs.json (rewritten next commit)."""
+"""/api/cron — reads echo-core/cron/jobs.json (flat schema)."""
 import json
-from datetime import datetime, timezone as dt_timezone
-from pathlib import Path
-from zoneinfo import ZoneInfo
+from datetime import datetime
+
+import constants
+
+
+def _parse_cron_time(expr):
+    """Extract a display-time string from a cron expression.
+
+    Echo-core cron strings are already Bucharest local time (Lane B
+    scheduler sets tz=Europe/Bucharest), so NO UTC→local conversion.
+    """
+    parts = expr.split()
+    if len(parts) < 2:
+        return expr[:15]
+    minute, hour = parts[0], parts[1]
+    if minute.isdigit() and (hour.isdigit() or '-' in hour):
+        if '-' in hour:
+            hour = hour.split('-')[0]
+        try:
+            return f"{int(hour):02d}:{int(minute):02d}"
+        except ValueError:
+            return expr[:15]
+    return expr[:15]
+
+
+def _iso_to_epoch_ms(iso_str):
+    """Convert an ISO 8601 datetime string to epoch ms. Returns 0 on failure."""
+    if not iso_str:
+        return 0
+    try:
+        dt = datetime.fromisoformat(iso_str.replace('Z', '+00:00'))
+        return int(dt.timestamp() * 1000)
+    except (ValueError, TypeError):
+        return 0
 
 
 class CronHandlers:
     """Mixin for /api/cron."""
 
     def handle_cron_status(self):
-        """Get cron jobs status from ~/.clawdbot/cron/jobs.json (legacy schema)."""
+        """Get enabled cron jobs from echo-core/cron/jobs.json (flat schema).
+
+        Output shape preserved for the frontend: id, name, time, schedule,
+        ranToday, lastStatus, lastRunAtMs, nextRunAtMs.
+        """
         try:
-            jobs_file = Path.home() / '.clawdbot' / 'cron' / 'jobs.json'
+            jobs_file = constants.BASE_DIR / 'cron' / 'jobs.json'
             if not jobs_file.exists():
                 self.send_json({'jobs': [], 'error': 'No jobs file found'})
                 return
 
-            data = json.loads(jobs_file.read_text())
-            all_jobs = data.get('jobs', [])
+            all_jobs = json.loads(jobs_file.read_text())
+            if not isinstance(all_jobs, list):
+                self.send_json({'jobs': [], 'error': 'Unexpected jobs.json shape'})
+                return
 
             today_start = datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
             today_start_ms = today_start.timestamp() * 1000
@@ -27,46 +64,25 @@ class CronHandlers:
                 if not job.get('enabled', False):
                     continue
 
-                schedule = job.get('schedule', {})
-                expr = schedule.get('expr', '')
+                name = job.get('name', '')
+                expr = job.get('cron', '')
+                last_run_iso = job.get('last_run')
+                next_run_iso = job.get('next_run')
+                last_status = job.get('last_status', 'unknown')
 
-                parts = expr.split()
-                if len(parts) >= 2:
-                    minute = parts[0]
-                    hour = parts[1]
-                    if minute.isdigit() and (hour.isdigit() or '-' in hour):
-                        if '-' in hour:
-                            hour_start, _ = hour.split('-')
-                            hour = hour_start
-                        try:
-                            bucharest = ZoneInfo('Europe/Bucharest')
-                            utc_dt = datetime.now(dt_timezone.utc).replace(
-                                hour=int(hour), minute=int(minute), second=0, microsecond=0,
-                            )
-                            local_dt = utc_dt.astimezone(bucharest)
-                            time_str = f"{local_dt.hour:02d}:{local_dt.minute:02d}"
-                        except Exception:
-                            time_str = f"{int(hour):02d}:{int(minute):02d}"
-                    else:
-                        time_str = expr[:15]
-                else:
-                    time_str = expr[:15]
-
-                state = job.get('state', {})
-                last_run = state.get('lastRunAtMs', 0)
-                ran_today = last_run >= today_start_ms
-                last_status = state.get('lastStatus', 'unknown')
+                last_run_ms = _iso_to_epoch_ms(last_run_iso)
+                next_run_ms = _iso_to_epoch_ms(next_run_iso) or None
+                ran_today = last_run_ms >= today_start_ms
 
                 jobs.append({
-                    'id': job.get('id'),
-                    'name': job.get('name'),
-                    'agentId': job.get('agentId'),
-                    'time': time_str,
+                    'id': name,                 # echo-core has no separate id; use name
+                    'name': name,
+                    'time': _parse_cron_time(expr),
                     'schedule': expr,
                     'ranToday': ran_today,
                     'lastStatus': last_status if ran_today else None,
-                    'lastRunAtMs': last_run,
-                    'nextRunAtMs': state.get('nextRunAtMs'),
+                    'lastRunAtMs': last_run_ms,
+                    'nextRunAtMs': next_run_ms,
                 })
 
             jobs.sort(key=lambda j: j['time'])