Feat message management

django_project/dcas/functions.py

@@ -10,6 +10,7 @@
 from dcas.rules.rule_engine import DCASRuleEngine
 from dcas.rules.variables import DCASData
 from dcas.service import GrowthStageService
+from dcas.utils import read_grid_crop_data
 
 
 def calculate_growth_stage(
@@ -114,3 +115,99 @@
         var_name = f'message_{idx + 1}' if idx > 0 else 'message'
         row[var_name] = code
     return row
+
+
+def get_last_message_date(
+    farm_id: int,
+    crop_id: int,
+    message_code: str,
+    historical_parquet_path: str
+) -> pd.Timestamp:
+    """
+    Get the last date a message code was sent for a specific farm and crop.
+
+    :param farm_id: ID of the farm
+    :type farm_id: int
+    :param crop_id: ID of the crop
+    :type crop_id: int
+    :param message_code: The message code to check
+    :type message_code: str
+    :param historical_parquet_path: Path to the historical message parquet file
+    :type historical_parquet_path: str
+    :return: Timestamp of the last message occurrence or None if not found
+    :rtype: pd.Timestamp or None
+    """
+    # Read historical messages
+    historical_data = read_grid_crop_data(
+        historical_parquet_path, [], [crop_id], []
+    )
+
+    # Filter messages for the given farm, crop, and message code
+    filtered_data = historical_data[
+        (historical_data['farm_id'] == farm_id) &
+        (historical_data['crop_id'] == crop_id) &
+        (
+            (historical_data['message'] == message_code) |
+            (historical_data['message_2'] == message_code) |
+            (historical_data['message_3'] == message_code) |
+            (historical_data['message_4'] == message_code) |
+            (historical_data['message_5'] == message_code)
+        )
+    ]
+
+    # If no record exists, return None
+    if filtered_data.empty:
+        return None
+
+    # Return the most recent message date
+    return filtered_data['message_date'].max()
+
+
+def filter_messages_by_weeks(
+    df: pd.DataFrame,
+    historical_parquet_path: str,
+    weeks_constraint: int
+) -> pd.DataFrame:
+    """
+    Remove messages that have been sent within the last X weeks.
+
+    :param df: DataFrame containing new messages to be sent
+    :type df: pd.DataFrame
+    :param historical_parquet_path: Path to historical message parquet file
+    :type historical_parquet_path: str
+    :param weeks_constraint: Number of weeks to check for duplicate messages
+    :type weeks_constraint: int
+    :return: DataFrame with duplicate messages removed
+    :rtype: pd.DataFrame
+    """
+    print("Available columns in df:", df.columns)  # Debugging line
+
+    if 'farm_id' not in df.columns:
+        raise KeyError("Column 'farm_id' is missing in the DataFrame!")
+    min_allowed_date = (
+        pd.Timestamp.now() - pd.Timedelta(weeks=weeks_constraint)
+    )
+
+    for idx, row in df.iterrows():
+        for message_column in [
+            'message',
+            'message_2',
+            'message_3',
+            'message_4',
+            'message_5'
+        ]:
+            message_code = row[message_column]
+
+            if pd.isna(message_code):
+                continue  # Skip empty messages
+
+            last_sent_date = get_last_message_date(
+                row['farm_id'],
+                row['crop_id'],
+                message_code,
+                historical_parquet_path)
+
+            if last_sent_date and last_sent_date >= min_allowed_date:
+                df.at[idx, message_column] = None  # Remove duplicate message
+
+    return df

django_project/dcas/outputs.py

@@ -75,6 +75,12 @@
         """Return full path to grid with crop data."""
         return self.grid_crop_data_dir_path + '/*.parquet'
 
+    @property
+    def farm_crop_data_path(self):
+        """Return full path to the farm crop data parquet file."""
+        return self._get_directory_path(
+            self.DCAS_OUTPUT_DIR) + '/*.parquet'
+
     def _setup_s3fs(self):
         """Initialize s3fs."""
         self.s3 = self._get_s3_variables()

django_project/dcas/pipeline.py

@@ -31,6 +31,7 @@
 from dcas.queries import DataQuery
 from dcas.outputs import DCASPipelineOutput, OutputType
 from dcas.inputs import DCASPipelineInput
+from dcas.functions import filter_messages_by_weeks
 from dcas.service import GrowthStageService
 
 
@@ -306,6 +307,13 @@
         grid_crop_df_meta = self.data_query.grid_data_with_crop_meta(
             self.farm_registry_group
         )
+        # add farm_id
+        if "farm_id" not in grid_crop_df_meta.columns:
+            grid_crop_df_meta = grid_crop_df_meta.assign(
+                farm_id=pd.Series(dtype='Int64')
+            )
+        # Ensure the column order in `meta` matches the expected DataFrame
+        grid_crop_df_meta = grid_crop_df_meta[grid_crop_df.columns]
 
         # Process gdd cumulative
         # for Total GDD, we use date from planting_date to request_date - 1
@@ -445,6 +453,25 @@
 
         return file_path
 
+    def filter_message_output(self):
+        """Filter messages before extracting CSV."""
+        print(f'Applying message: {self.data_output.farm_crop_data_path}')
+
+        # Read Parquet file (processed farm crop data)
+        df = dd.read_parquet(self.data_output.farm_crop_data_path)
+
+        # Apply message filtering
+        df = df.map_partitions(
+            filter_messages_by_weeks,
+            self.data_output.farm_crop_data_path,
+            2,  # Weeks constraint (default: 2 weeks)
+        )
+
+        # Save the filtered Parquet file (overwrite previous Parquet)
+        df.to_parquet(self.data_output.farm_crop_data_path, write_index=False)
+
+        print('Finished filtering messages.')
+
     def run(self):
         """Run data pipeline."""
         self.setup()
@@ -454,6 +481,9 @@
         self.process_grid_crop_data()
 
         self.process_farm_registry_data()
+
+        self.filter_message_output()
+
         self.extract_csv_output()
 
         self.cleanup_gdd_matrix()

django_project/dcas/tests/test_pipeline_functions.py

@@ -8,9 +8,13 @@
 import numpy as np
 import pandas as pd
 from mock import patch
+from datetime import datetime, timedelta
 
 from dcas.tests.base import DCASPipelineBaseTest
-from dcas.functions import calculate_growth_stage
+from dcas.functions import (
+    calculate_growth_stage, get_last_message_date,
+    filter_messages_by_weeks
+)
 
 
 def set_cache_dummy(cache_key, growth_stage_matrix, timeout):
@@ -217,3 +221,132 @@ def test_calculate_growth_stage_na_value(self, mock_cache):
         self.assertIn('growth_stage_start_date', row)
         self.assertEqual(row['growth_stage_id'], 2)
         self.assertEqual(row['growth_stage_start_date'], 124)
+
+    @patch("dcas.functions.read_grid_crop_data")
+    def test_get_last_message_date_exists(self, mock_read_grid_crop_data):
+        """
+        Test when a message exists in history.
+
+        It should return the latest timestamp among all message columns.
+        """
+        now = datetime.now()
+        mock_data = pd.DataFrame({
+            'farm_id': [1, 1, 1, 2, 2, 3],
+            'crop_id': [100, 100, 100, 101, 101, 102],
+            'message': ['MSG1', 'MSG2', 'MSG1', 'MSG3', 'MSG1', 'MSG4'],
+            'message_2': [None, 'MSG1', None, None, 'MSG3', None],
+            'message_3': [None, None, 'MSG1', None, None, None],
+            'message_4': [None, None, None, None, None, None],
+            'message_5': [None, None, None, 'MSG1', None, 'MSG4'],
+            'message_date': [
+                now - timedelta(days=15),  # MSG1 - Old
+                now - timedelta(days=10),  # MSG2
+                now - timedelta(days=5),   # MSG1 - More recent
+                now - timedelta(days=12),  # MSG3
+                now - timedelta(days=3),   # MSG1 - Most recent
+                now - timedelta(days=20)   # MSG4 - Oldest
+            ]
+        })
+
+        mock_read_grid_crop_data.return_value = mock_data
+
+        # Latest MSG1 should be at index 4 (3 days ago)
+        result = get_last_message_date(2, 101, "MSG1", "/fake/path")
+        assert result == mock_data['message_date'].iloc[4]
+
+        # Latest MSG3 should be at index 3 (12 days ago)
+        result = get_last_message_date(2, 101, "MSG3", "/fake/path")
+        assert result == mock_data['message_date'].iloc[4]
+
+        # Latest MSG2 should be at index 1 (10 days ago)
+        result = get_last_message_date(1, 100, "MSG2", "/fake/path")
+        assert result == mock_data['message_date'].iloc[1]
+
+        # Latest MSG1 for farm 1, crop 100 should be at index 2 (5 days ago)
+        result = get_last_message_date(1, 100, "MSG1", "/fake/path")
+        assert result == mock_data['message_date'].iloc[2]
+
+        # MSG5 exists only once, at index 3 (12 days ago)
+        result = get_last_message_date(2, 101, "MSG5", "/fake/path")
+        assert result is None  # No MSG5 found
+
+    @patch("dcas.functions.read_grid_crop_data")
+    def test_get_last_message_date_not_exists(self, mock_read_grid_crop_data):
+        """Test when the message does not exist in history."""
+        mock_data = pd.DataFrame({
+            'farm_id': [1, 1, 2],
+            'crop_id': [100, 100, 101],
+            'message': ['MSG2', 'MSG3', 'MSG4'],
+            'message_2': [None, None, None],
+            'message_3': [None, None, None],
+            'message_4': [None, None, None],
+            'message_5': [None, None, None],
+            'message_date': [
+                pd.Timestamp(datetime.now() - timedelta(days=10)),
+                pd.Timestamp(datetime.now() - timedelta(days=5)),
+                pd.Timestamp(datetime.now() - timedelta(days=3))
+            ]
+        })
+        mock_read_grid_crop_data.return_value = mock_data
+
+        result = get_last_message_date(1, 100, "MSG1", "/fake/path")
+        self.assertIsNone(result)
+
+    @patch("dcas.functions.read_grid_crop_data")
+    def test_get_last_message_date_multiple_messages(
+        self,
+        mock_read_grid_crop_data
+    ):
+        """
+        Test when the same message appears multiple times.
+
+        And should return the most recent timestamp.
+        """
+        mock_data = pd.DataFrame({
+            'farm_id': [1, 1, 1],
+            'crop_id': [100, 100, 100],
+            'message': ['MSG1', 'MSG1', 'MSG1'],
+            'message_2': [None, None, None],
+            'message_3': [None, None, None],
+            'message_4': [None, None, None],
+            'message_5': [None, None, None],
+            'message_date': [
+                pd.Timestamp(datetime.now() - timedelta(days=15)),
+                pd.Timestamp(datetime.now() - timedelta(days=7)),
+                pd.Timestamp(datetime.now() - timedelta(days=2))
+            ]
+        })
+        mock_read_grid_crop_data.return_value = mock_data
+
+        result = get_last_message_date(1, 100, "MSG1", "/fake/path")
+        self.assertEqual(result, mock_data['message_date'].iloc[2])
+
+    @patch("dcas.functions.get_last_message_date")
+    def test_filter_messages_by_weeks(self, mock_get_last_message_date):
+        """Test filtering messages based on the time constraint (weeks)."""
+        test_weeks = 2  # Remove messages sent within the last 2 weeks
+        current_date = pd.Timestamp(datetime.now())
+
+        df = pd.DataFrame({
+            'farm_id': [1, 2, 3],
+            'crop_id': [100, 200, 300],
+            'message': ['MSG1', 'MSG2', 'MSG3'],
+            'message_2': [None, None, None],
+            'message_3': [None, None, None],
+            'message_4': [None, None, None],
+            'message_5': [None, None, None],
+        })
+
+        # Simulating last message dates for each row
+        mock_get_last_message_date.side_effect = [
+            current_date - timedelta(weeks=1),  # Should be removed
+            current_date - timedelta(weeks=3),  # Should stay
+            None  # No history, should stay
+        ]
+
+        filtered_df = filter_messages_by_weeks(df, "/fake/path", test_weeks)
+
+        # Assert that the correct messages were removed
+        self.assertIsNone(filtered_df.loc[0, 'message'])  # Removed
+        self.assertEqual(filtered_df.loc[1, 'message'], 'MSG2')  # Kept
+        self.assertEqual(filtered_df.loc[2, 'message'], 'MSG3')  # Kept