[Issue: #166] Create ecs task to export opportunity data as csv and j…

…son (#176)

## Summary
Fixes #166

### Time to review: 20 mins

## Changes proposed
- Adds export_opportunity_data task
- Changes opportunity_to_csv function to opportunities_to_csv to be more
flexible by including output as a parameter
- Adds unit test for export_opportunity_data task.

## Context for reviewers
- The test runs the export_opportunity_data task, uploading a csv and
json file to mock_s3_bucket. Then it reads the files and verifies
contents.

---------

Co-authored-by: Michael Chouinard <46358556+chouinar@users.noreply.github.com>

api/local.env

@@ -119,4 +119,11 @@ ENABLE_OPPORTUNITY_LOG_MSG=false
 # For the script to setup the foreign data tables
 # this env var overrides it so the script generates normal
 # tables that don't need to connect to an Oracle database
-IS_LOCAL_FOREIGN_TABLE=true
+IS_LOCAL_FOREIGN_TABLE=true
+
+############################
+# Task Configuration
+############################
+
+# File path for the export_opportunity_data task
+EXPORT_OPP_DATA_FILE_PATH=/tmp

api/src/api/opportunities_v1/opportunity_routes.py

@@ -1,3 +1,4 @@
+import io
 import logging
 
 from flask import Response
@@ -13,7 +14,7 @@
 from src.auth.api_key_auth import api_key_auth
 from src.logging.flask_logger import add_extra_data_to_current_request_logs
 from src.services.opportunities_v1.get_opportunity import get_opportunity, get_opportunity_versions
-from src.services.opportunities_v1.opportunity_to_csv import opportunity_to_csv
+from src.services.opportunities_v1.opportunity_to_csv import opportunities_to_csv
 from src.services.opportunities_v1.search_opportunities import search_opportunities
 from src.util.dict_util import flatten_dict
 
@@ -135,7 +136,8 @@ def opportunity_search(
 
     if search_params.get("format") == opportunity_schemas.SearchResponseFormat.CSV:
         # Convert the response into a CSV and return the contents
-        output = opportunity_to_csv(opportunities)
+        output = io.StringIO()
+        opportunities_to_csv(opportunities, output)
         timestamp = datetime_util.utcnow().strftime("%Y%m%d-%H%M%S")
         return Response(
             output.getvalue().encode("utf-8"),

api/src/services/opportunities_v1/opportunity_to_csv.py

@@ -58,7 +58,7 @@ def _process_assistance_listing(assistance_listings: list[dict]) -> str:
     )
 
 
-def opportunity_to_csv(opportunities: Sequence[dict]) -> io.StringIO:
+def opportunities_to_csv(opportunities: Sequence[dict], output: io.StringIO) -> None:
     opportunities_to_write: list[dict] = []
 
     for opportunity in opportunities:
@@ -84,10 +84,6 @@ def opportunity_to_csv(opportunities: Sequence[dict]) -> io.StringIO:
 
         opportunities_to_write.append(out_opportunity)
 
-    output = io.StringIO()
-
     writer = csv.DictWriter(output, fieldnames=CSV_FIELDS, quoting=csv.QUOTE_ALL)
     writer.writeheader()
     writer.writerows(opportunities_to_write)
-
-    return output

api/src/task/__init__.py

@@ -3,5 +3,6 @@
 # import any of the other files so they get initialized and attached to the blueprint
 import src.task.opportunities.set_current_opportunities_task  # noqa: F401 E402 isort:skip
 import src.task.opportunities.import_opportunity_csvs  # noqa: F401 E402 isort:skip
+import src.task.opportunities.export_opportunity_data_task  # noqa: F401 E402 isort:skip
 
 __all__ = ["task_blueprint"]

api/src/task/opportunities/export_opportunity_data_task.py

@@ -0,0 +1,124 @@
+import json
+import logging
+import os
+from enum import StrEnum
+from typing import Iterator, Sequence
+
+from pydantic_settings import SettingsConfigDict
+from sqlalchemy import select
+from sqlalchemy.orm import noload, selectinload
+
+import src.adapters.db as db
+import src.adapters.db.flask_db as flask_db
+import src.util.file_util as file_util
+from src.api.opportunities_v1.opportunity_schemas import OpportunityV1Schema
+from src.db.models.opportunity_models import CurrentOpportunitySummary, Opportunity
+from src.services.opportunities_v1.opportunity_to_csv import opportunities_to_csv
+from src.task.task import Task
+from src.task.task_blueprint import task_blueprint
+from src.util.datetime_util import get_now_us_eastern_datetime
+from src.util.env_config import PydanticBaseEnvConfig
+
+logger = logging.getLogger(__name__)
+
+
+@task_blueprint.cli.command(
+    "export-opportunity-data",
+    help="Generate JSON and CSV files containing an export of all opportunity data",
+)
+@flask_db.with_db_session()
+def export_opportunity_data(db_session: db.Session) -> None:
+    ExportOpportunityDataTask(db_session).run()
+
+
+class ExportOpportunityDataConfig(PydanticBaseEnvConfig):
+    model_config = SettingsConfigDict(env_prefix="EXPORT_OPP_DATA_")
+
+    # EXPORT_OPP_DATA_FILE_PATH
+    file_path: str
+
+
+class ExportOpportunityDataTask(Task):
+    class Metrics(StrEnum):
+        RECORDS_EXPORTED = "records_exported"
+
+    def __init__(
+        self,
+        db_session: db.Session,
+        config: ExportOpportunityDataConfig | None = None,
+    ) -> None:
+        super().__init__(db_session)
+
+        if config is None:
+            config = ExportOpportunityDataConfig()
+        self.config = config
+
+        self.current_timestamp = get_now_us_eastern_datetime().strftime("%Y-%m-%d_%H-%M-%S")
+
+        self.json_file = os.path.join(
+            config.file_path, f"opportunity_data-{self.current_timestamp}.json"
+        )
+        self.csv_file = os.path.join(
+            config.file_path, f"opportunity_data-{self.current_timestamp}.csv"
+        )
+
+        self.set_metrics({"csv_file": self.csv_file, "json_file": self.json_file})
+
+    def run_task(self) -> None:
+        # Load records
+        schema = OpportunityV1Schema()
+
+        opportunities = []
+        for opp_batch in self.fetch_opportunities():
+            for record in opp_batch:
+                self.increment(self.Metrics.RECORDS_EXPORTED)
+                opportunities.append(schema.dump(record))
+
+        # Format data
+        data_to_export: dict = {
+            "metadata": {"file_generated_at": self.current_timestamp},
+            "opportunities": opportunities,
+        }
+
+        # Export data
+        self.export_data_to_json(data_to_export)
+        self.export_opportunities_to_csv(opportunities)
+
+    def fetch_opportunities(self) -> Iterator[Sequence[Opportunity]]:
+        """
+        Fetch the opportunities in batches. The iterator returned
+        will give you each individual batch to be processed.
+
+        Fetches all opportunities where:
+            * is_draft = False
+            * current_opportunity_summary is not None
+        """
+        return (
+            self.db_session.execute(
+                select(Opportunity)
+                .join(CurrentOpportunitySummary)
+                .where(
+                    Opportunity.is_draft.is_(False),
+                    CurrentOpportunitySummary.opportunity_status.isnot(None),
+                )
+                .options(selectinload("*"), noload(Opportunity.all_opportunity_summaries))
+                .execution_options(yield_per=5000)
+            )
+            .scalars()
+            .partitions()
+        )
+
+    def export_data_to_json(self, data_to_export: dict) -> None:
+        # create the json file
+        logger.info(
+            "Creating Opportunity JSON extract", extra={"json_extract_path": self.json_file}
+        )
+        json_object = json.dumps(data_to_export, indent=4)
+        with file_util.open_stream(self.json_file, "w") as outfile:
+            outfile.write(json_object)
+
+    def export_opportunities_to_csv(self, opportunities: Sequence[dict]) -> None:
+        # create the csv file
+        logger.info("Creating Opportunity CSV extract", extra={"csv_extract_path": self.csv_file})
+        with file_util.open_stream(self.csv_file, "w") as outfile:
+            opportunities_to_csv(opportunities, outfile)

api/tests/src/task/opportunities/test_export_opportunity_data_task.py

@@ -0,0 +1,77 @@
+import csv
+import json
+
+import pytest
+
+import src.util.file_util as file_util
+from src.api.opportunities_v1.opportunity_schemas import OpportunityV1Schema
+from src.task.opportunities.export_opportunity_data_task import (
+    ExportOpportunityDataConfig,
+    ExportOpportunityDataTask,
+)
+from tests.conftest import BaseTestClass
+from tests.src.db.models.factories import OpportunityFactory
+
+
+class TestExportOpportunityDataTask(BaseTestClass):
+    @pytest.fixture
+    def export_opportunity_data_task(self, db_session, mock_s3_bucket):
+        config = ExportOpportunityDataConfig(file_path=f"s3://{mock_s3_bucket}/")
+        return ExportOpportunityDataTask(db_session, config)
+
+    def test_export_opportunity_data_task(
+        self,
+        db_session,
+        truncate_opportunities,
+        enable_factory_create,
+        export_opportunity_data_task,
+    ):
+        # Create 25 opportunities we will load
+        opportunities = []
+        opportunities.extend(OpportunityFactory.create_batch(size=6, is_posted_summary=True))
+        opportunities.extend(OpportunityFactory.create_batch(size=3, is_forecasted_summary=True))
+        opportunities.extend(OpportunityFactory.create_batch(size=2, is_closed_summary=True))
+        opportunities.extend(
+            OpportunityFactory.create_batch(size=8, is_archived_non_forecast_summary=True)
+        )
+        opportunities.extend(
+            OpportunityFactory.create_batch(size=6, is_archived_forecast_summary=True)
+        )
+
+        # Create some opportunities that won't get fetched / exported
+        OpportunityFactory.create_batch(size=3, is_draft=True)
+        OpportunityFactory.create_batch(size=4, no_current_summary=True)
+
+        export_opportunity_data_task.run()
+
+        # Verify some metrics first
+        # Make sure the opportunities we have created matches the number
+        # That get exported
+        assert (
+            len(opportunities)
+            == export_opportunity_data_task.metrics[
+                export_opportunity_data_task.Metrics.RECORDS_EXPORTED
+            ]
+        )
+
+        expected_opportunity_ids = set([opp.opportunity_id for opp in opportunities])
+        # Verify csv file contents
+        with file_util.open_stream(export_opportunity_data_task.csv_file, "r") as infile:
+            reader = csv.DictReader(infile)
+            assert expected_opportunity_ids == set(
+                [int(record["opportunity_id"]) for record in reader]
+            )
+
+        # Verify JSON file contents
+        with file_util.open_stream(export_opportunity_data_task.json_file, "r") as infile:
+            # Parse JSON File
+            json_opportunities = json.load(infile)
+
+            assert expected_opportunity_ids == set(
+                [int(record["opportunity_id"]) for record in json_opportunities["opportunities"]]
+            )
+
+            schema = OpportunityV1Schema(many=True)
+
+            errors = schema.validate(json_opportunities["opportunities"])
+            assert len(errors) == 0