PREOPS-5505 Restructure schedview snapshot dashboard code

docs/usage.rst

@@ -8,7 +8,7 @@ Begin by activating the conda environment::
 
     $ conda activate schedview
 
-There are two ways to start the dashboard, depending on what you want to use
+There are three ways to start the dashboard, depending on what you want to use
 as the source of data.
 One way is for users to enter arbitrary URLs or file paths from which to load
 the data. **This is insecure,** because users can point the dashboard to malicious
@@ -21,7 +21,15 @@ load data from a pre-specified directory on the host running the dashboard::
 
     $ scheduler_dashboard --data_dir /where/the/snapshot/pickles/are
 
-In either case, the app will then give you the URL at which you can find the app.
+Finally, if the dashboard is running at the USDF or another LFA facility, data can
+be loaded from an S3 bucket that is already preset in the dashboard. The dashboard
+will retrieve a list of snapshots for a selected night.
+
+To start the dashbaord in LFA mode::
+
+     $ scheduler_dashboard --lfa
+
+In each case, the app will then give you the URL at which you can find the app.
 
 Running ``prenight``
 --------------------

schedview/app/scheduler_dashboard/__init__.py

@@ -2,4 +2,4 @@
     "scheduler_app",
 ]
 
-from .scheduler_dashboard import scheduler_app
+from .scheduler_dashboard_app import scheduler_app

schedview/app/scheduler_dashboard/constants.py

@@ -0,0 +1,37 @@
+import importlib.resources
+
+import bokeh
+
+# Change styles using CSS variables.
+h1_stylesheet = """
+:host {
+  --mono-font: Helvetica;
+  color: white;
+  font-size: 16pt;
+  font-weight: 500;
+}
+"""
+h2_stylesheet = """
+:host {
+  --mono-font: Helvetica;
+  color: white;
+  font-size: 14pt;
+  font-weight: 300;
+}
+"""
+h3_stylesheet = """
+:host {
+  --mono-font: Helvetica;
+  color: white;
+  font-size: 13pt;
+  font-weight: 300;
+}
+"""
+
+DEFAULT_TIMEZONE = "UTC"  # "America/Santiago"
+LOGO = "/schedview-snapshot/assets/lsst_white_logo.png"
+COLOR_PALETTES = [color for color in bokeh.palettes.__palettes__ if "256" in color]
+DEFAULT_COLOR_PALETTE = "Viridis256"
+DEFAULT_NSIDE = 16
+PACKAGE_DATA_DIR = importlib.resources.files("schedview.data").as_posix()
+LFA_DATA_DIR = "s3://rubin:"

schedview/app/scheduler_dashboard/lfa_scheduler_snapshot_dashboard.py

@@ -0,0 +1,86 @@
+from datetime import datetime
+from zoneinfo import ZoneInfo
+
+import panel as pn
+import param
+from astropy.time import Time
+from pandas import Timestamp
+
+from schedview.app.scheduler_dashboard.constants import DEFAULT_TIMEZONE
+from schedview.app.scheduler_dashboard.unrestricted_scheduler_snapshot_dashboard import (
+    SchedulerSnapshotDashboard,
+)
+from schedview.app.scheduler_dashboard.utils import query_night_schedulers
+
+
+class LFASchedulerSnapshotDashboard(SchedulerSnapshotDashboard):
+    """A Parametrized container for parameters, data, and panel objects for the
+    scheduler dashboard working in LFA mode where data files are loaded from
+    a certain S3 bucket.
+    """
+
+    scheduler_fname_doc = """Recent pickles from LFA
+    """
+
+    # Precedence is used to make sure fields are displayed
+    # in the right order regardless of the dashboard mode.
+    scheduler_fname = param.Selector(
+        default="",
+        objects=[],
+        doc=scheduler_fname_doc,
+        precedence=3,
+    )
+
+    pickles_date = param.Date(
+        default=datetime.now(),
+        label="Snapshot selection cutoff date and time",
+        doc="Show snapshots that are recent as of this date and time in the scheduler snapshot file dropdown",
+        precedence=1,
+    )
+
+    telescope = param.Selector(
+        default=None, objects={"All": None, "Simonyi": 1, "Auxtel": 2}, doc="Source Telescope", precedence=2
+    )
+
+    # Summary widget and Reward widget heights are different in this mode
+    # because there are more data loading parameters.
+    _summary_widget_height = 310
+    _reward_widget_height = 350
+
+    data_loading_parameters = [
+        "scheduler_fname",
+        "pickles_date",
+        "telescope",
+        "widget_datetime",
+        "widget_tier",
+    ]
+    # Set specific widget props for data loading parameters
+    # in LFA mode.
+    data_loading_widgets = {
+        "pickles_date": pn.widgets.DatetimePicker,
+        "widget_datetime": pn.widgets.DatetimePicker,
+    }
+    # Set the data loading parameter section height in LFA mode.
+    data_params_grid_height = 42
+
+    def __init__(self):
+        super().__init__()
+
+    async def query_schedulers(self, selected_time, selected_tel):
+        """Query snapshots that have a timestamp between the start of the
+        night and selected datetime and generated by selected telescope
+        """
+        selected_time = Time(
+            Timestamp(
+                selected_time,
+                tzinfo=ZoneInfo(DEFAULT_TIMEZONE),
+            )
+        )
+        self.show_loading_indicator = True
+        self._debugging_message = "Starting retrieving snapshots"
+        self.logger.debug("Starting retrieving snapshots")
+        scheduler_urls = await query_night_schedulers(selected_time, selected_tel)
+        self.logger.debug("Finished retrieving snapshots")
+        self._debugging_message = "Finished retrieving snapshots"
+        self.show_loading_indicator = False
+        return scheduler_urls

schedview/app/scheduler_dashboard/restricted_scheduler_snapshot_dashboard.py

@@ -0,0 +1,39 @@
+import panel as pn
+
+import schedview
+import schedview.param
+from schedview.app.scheduler_dashboard.constants import PACKAGE_DATA_DIR
+from schedview.app.scheduler_dashboard.unrestricted_scheduler_snapshot_dashboard import (
+    SchedulerSnapshotDashboard,
+)
+
+
+class RestrictedSchedulerSnapshotDashboard(SchedulerSnapshotDashboard):
+    """A Parametrized container for parameters, data, and panel objects for the
+    scheduler dashboard working in restricted more where data files can only
+    be loaded from a certain data directory that is set through constructor.
+    """
+
+    scheduler_fname_doc = """URL or file name of the scheduler pickle file.
+    Such a pickle file can either be of an instance of a subclass of
+    rubin_scheduler.scheduler.schedulers.CoreScheduler, or a tuple of the form
+    (scheduler, conditions), where scheduler is an instance of a subclass of
+    rubin_scheduler.scheduler.schedulers.CoreScheduler, and conditions is an
+    instance of rubin_scheduler.scheduler.conditions.Conditions.
+    """
+    scheduler_fname = schedview.param.FileSelectorWithEmptyOption(
+        path=f"{PACKAGE_DATA_DIR}/*scheduler*.p*",
+        doc=scheduler_fname_doc,
+        default=None,
+        allow_None=True,
+    )
+
+    data_loading_widgets = {
+        "widget_datetime": pn.widgets.DatetimePicker,
+    }
+
+    def __init__(self, data_dir=None):
+        super().__init__()
+
+        if data_dir is not None:
+            self.param["scheduler_fname"].update(path=f"{data_dir}/*scheduler*.p*")