From 7fb2cded352c4b6bdb209a4b34c083a4c7e67b8c Mon Sep 17 00:00:00 2001
From: Mo Sohani <msohani@goraft.tech>
Date: Wed, 11 Dec 2024 07:51:39 -0500
Subject: [PATCH] added separate function for reparse and clean

---
 .../tdpservice/search_indexes/reparse.py      | 104 ++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 tdrs-backend/tdpservice/search_indexes/reparse.py

diff --git a/tdrs-backend/tdpservice/search_indexes/reparse.py b/tdrs-backend/tdpservice/search_indexes/reparse.py
new file mode 100644
index 000000000..7813f403b
--- /dev/null
+++ b/tdrs-backend/tdpservice/search_indexes/reparse.py
@@ -0,0 +1,104 @@
+# Re-write management command clean_and_reparse as a function without callinf call_command
+# should include all the steps in the management command
+#
+from django.core.management.base import BaseCommand
+from django.core.management import call_command
+from django.core.paginator import Paginator
+from django.db.utils import DatabaseError
+from elasticsearch.exceptions import ElasticsearchException
+from tdpservice.data_files.models import DataFile
+from tdpservice.parsers.models import DataFileSummary, ParserError
+from tdpservice.scheduling import parser_task
+from tdpservice.search_indexes.util import DOCUMENTS, count_all_records
+from tdpservice.search_indexes.models.reparse_meta import ReparseMeta
+from tdpservice.core.utils import log
+from django.contrib.admin.models import ADDITION
+from tdpservice.users.models import User
+from datetime import timedelta
+from django.utils import timezone
+from django.conf import settings
+import logging
+
+logger = logging.getLogger(__name__)
+
+def _get_log_context(system_user):
+        """Return logger context."""
+        context = {'user_id': system_user.id,
+                   'action_flag': ADDITION,
+                   'object_repr': "Clean and Reparse"
+                   }
+        return context
+
+def _assert_sequential_execution(log_context):
+    """Assert that no other reparse commands are still executing."""
+    latest_meta_model = ReparseMeta.get_latest()
+    now = timezone.now()
+    is_not_none = latest_meta_model is not None
+    if (is_not_none and latest_meta_model.timeout_at is None):
+        log(f"The latest ReparseMeta model's (ID: {latest_meta_model.pk}) timeout_at field is None. "
+            "Cannot safely execute reparse, please fix manually.",
+            logger_context=log_context,
+            level='error')
+        return False
+    if (is_not_none and not ReparseMeta.assert_all_files_done(latest_meta_model) and
+            not now > latest_meta_model.timeout_at):
+        log('A previous execution of the reparse command is RUNNING. Cannot execute in parallel, exiting.',
+            logger_context=log_context,
+            level='warn')
+        return False
+    elif (is_not_none and latest_meta_model.timeout_at is not None and now > latest_meta_model.timeout_at and not
+            ReparseMeta.assert_all_files_done(latest_meta_model)):
+        log("Previous reparse has exceeded the timeout. Allowing execution of the command.",
+            logger_context=log_context,
+            level='warn')
+        return True
+    return True
+
+def _should_exit(condition):
+    """Exit on condition."""
+    if condition:
+        exit(1)
+
+def clean_reparse(selected_file_ids):
+    """Reparse selected files."""
+    selected_files = [int(file_id) for file_id in selected_file_ids[0].split(",")]
+    
+    files = files.filter(id__in=selected_files)
+    backup_file_name += "_selected_files"
+    continue_msg = continue_msg.format(fy=f"selected files: {str(selected_files)}", q="Q1-4")
+
+    num_files = files.count()
+
+    # add fmt_str
+
+    system_user, created = User.objects.get_or_create(username="system")
+    if created:
+        logger.info("Created system user")
+    log_context = _get_log_context(system_user)
+
+    all_fy = "All"
+    all_q = "Q1-4"
+
+    log(f"Starting clean_and_reparse for {num_files} files",
+        logger_context=log_context,
+        level=logging.INFO)
+    
+    is_sequential = _assert_sequential_execution(log_context)
+    _should_exit(not is_sequential)
+
+    meta_model = ReparseFileMeta.objects.create(
+        fiscal_quarter=fiscal_quarter,
+        fiscal_year=fiscal_year,
+        all=all_reparse,
+        new_indices=new_indices,
+        delete_old_indices=new_indices)
+    
+    # Backup the Postgres DB
+    backup_file_name += f"_rpv{meta_model.pk}.pg"
+    _backup(backup_file_name, log_context)
+
+    meta_model.db_backup_location = backup_file_name
+    meta_model.save()
+
+    # Create and delete Elastic indices if necessary
+    _handle_elastic(new_indices, log_context)
\ No newline at end of file