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Supabase State Manager for MCPMark
====================================
Manages database state for Supabase tasks using the same PostgreSQL backend
as Insforge, but accessed via PostgREST/Supabase MCP server.
"""
import os
import sys
import subprocess
import psycopg2
from psycopg2 import sql
from pathlib import Path
from typing import Optional, Dict, Any, List
from src.base.state_manager import BaseStateManager, InitialStateInfo
from src.base.task_manager import BaseTask
from src.logger import get_logger
logger = get_logger(__name__)
class SupabaseStateManager(BaseStateManager):
"""Manages Supabase/PostgREST database state for task evaluation.
Uses the same PostgreSQL database as Insforge but exposes it via
PostgREST API for the Supabase MCP server to access.
"""
def __init__(
self,
api_url: str,
api_key: str,
postgres_host: str = "localhost",
postgres_port: int = 54322, # Supabase CLI default port
postgres_user: str = "postgres",
postgres_password: str = "postgres",
postgres_database: str = "postgres", # Supabase CLI default database
):
"""Initialize Supabase state manager.
Args:
api_url: PostgREST API URL from Supabase CLI (default: http://localhost:54321)
api_key: API key from Supabase CLI (anon or service_role key)
postgres_host: PostgreSQL host for direct database operations
postgres_port: PostgreSQL port (Supabase CLI uses 54322)
postgres_user: PostgreSQL username
postgres_password: PostgreSQL password
postgres_database: Main PostgreSQL database name
"""
super().__init__(service_name="supabase")
self.api_url = api_url.rstrip('/')
self.api_key = api_key
# PostgreSQL connection for state management (Supabase CLI instance)
self.postgres_host = postgres_host
self.postgres_port = postgres_port
self.postgres_user = postgres_user
self.postgres_password = postgres_password
self.postgres_database = postgres_database
# Track current task context for agent configuration
self._current_task_context: Optional[Dict[str, Any]] = None
# Validate connection on initialization
try:
self._test_connection()
logger.info("Supabase state manager initialized successfully")
except Exception as e:
raise RuntimeError(f"Supabase initialization failed: {e}")
# Store baseline tables (system tables that exist before any tasks run)
self._baseline_tables = set(
(t['schema'], t['name']) for t in self._get_all_tables()
)
logger.debug(f"Stored baseline: {len(self._baseline_tables)} tables")
def _test_connection(self):
"""Test PostgreSQL connection."""
try:
conn_params = {
"host": self.postgres_host,
"port": self.postgres_port,
"user": self.postgres_user,
"password": self.postgres_password,
"database": self.postgres_database,
}
conn = psycopg2.connect(**conn_params)
conn.close()
logger.debug("PostgreSQL connection test successful")
except Exception as e:
raise RuntimeError(f"Cannot connect to PostgreSQL: {e}")
def _create_initial_state(self, task: BaseTask) -> Optional[InitialStateInfo]:
"""Create initial backend state for a task.
Restores from backup which may place tables in public or task-specific schema.
Args:
task: Task for which to create initial state
Returns:
InitialStateInfo object or None if creation failed
"""
try:
# Generate unique state ID for this task run
state_id = f"{task.category_id}_{task.task_id}_{self._get_timestamp()}"
schema_name = task.category_id
logger.info(f"| Creating initial state for Supabase task: {task.name}")
# Drop schema first (cleanup from previous runs)
self._drop_schema(schema_name)
# Get list of existing tables before restore (to track what we create)
tables_before = self._get_all_tables()
logger.info(f"| Tables before restore: {len(tables_before)}")
# Note: Don't create schema here - pg_restore will create it from the backup
# Restore from backup if backup exists (may create tables in public or task schema)
if self._restore_from_backup(schema_name):
logger.info(f"| ✓ Restored '{schema_name}' from backup")
else:
logger.info(f"| ○ No backup found for '{schema_name}'")
# Run prepare_environment.py if it exists
task_prepared = self._run_prepare_environment(task)
if not task_prepared:
logger.debug(f"| No prepare_environment.py found for task {task.name}")
# Get list of tables after restore (to track what we need to clean up)
tables_after = self._get_all_tables()
# Track ALL new tables created by the restore (compare before/after)
tables_before_set = {(t['schema'], t['name']) for t in tables_before}
created_tables = [
t for t in tables_after
if (t['schema'], t['name']) not in tables_before_set
]
logger.info(f"| Tracked {len(created_tables)} new tables for cleanup")
for t in created_tables:
logger.debug(f"| - {t['schema']}.{t['name']}")
# Track the task context including created tables
context = {
"state_id": state_id,
"category_id": task.category_id,
"task_id": task.task_id,
"task_name": task.name,
"schema": schema_name,
"created_tables": created_tables,
}
return InitialStateInfo(
state_id=state_id,
state_url=self.api_url,
metadata=context,
)
except Exception as e:
logger.error(f"Failed to create initial state for {task.name}: {e}")
return None
def _store_initial_state_info(
self, task: BaseTask, state_info: InitialStateInfo
) -> None:
"""Store backend info in task object for agent access."""
if hasattr(task, "__dict__"):
task.api_url = self.api_url
task.api_key = self.api_key
task.state_id = state_info.state_id
# Store current task context for agent configuration
self._current_task_context = state_info.metadata
def _cleanup_task_initial_state(self, task: BaseTask) -> bool:
"""Clean up task-specific resources.
Drops ALL tables created during task (both setup and agent-created)
by comparing against baseline.
Args:
task: Task whose initial state should be cleaned up
Returns:
True if cleanup successful
"""
try:
logger.info(f"| Cleaning up initial state for task: {task.name}")
if self._current_task_context:
schema_name = self._current_task_context.get("schema")
# Get ALL current tables
all_current_tables = self._get_all_tables()
# Find tables to drop: anything not in baseline
tables_to_drop = [
t for t in all_current_tables
if (t['schema'], t['name']) not in self._baseline_tables
]
logger.info(f"| Found {len(tables_to_drop)} tables to clean up (setup + agent-created)")
# Drop individual tables
for table_info in tables_to_drop:
try:
self._drop_table(table_info["schema"], table_info["name"])
logger.debug(f"| ✓ Dropped table: {table_info['schema']}.{table_info['name']}")
except Exception as e:
logger.warning(f"| Failed to drop table {table_info}: {e}")
# Drop the task schema (may be empty if all tables were in public)
if schema_name:
try:
self._drop_schema(schema_name)
logger.info(f"| ✓ Dropped schema: {schema_name}")
except Exception as e:
logger.warning(f"| Failed to drop schema {schema_name}: {e}")
# Clear task context
if self._current_task_context.get("task_name") == task.name:
self._current_task_context = None
logger.info(f"| ✓ Initial state cleanup completed for {task.name}")
return True
except Exception as e:
logger.error(f"Failed to cleanup task initial state for {task.name}: {e}")
return False
def _cleanup_single_resource(self, resource: Dict[str, Any]) -> bool:
"""Clean up a single tracked resource.
Args:
resource: Resource dictionary with type, id, and metadata
Returns:
True if cleanup successful
"""
resource_type = resource["type"]
resource_id = resource["id"]
logger.debug(f"| Cleanup for {resource_type} {resource_id} (handled by task scripts)")
return True
def _run_prepare_environment(self, task: BaseTask) -> bool:
"""Run prepare_environment.py script if it exists in the task directory.
The script should use database operations to set up required state.
Args:
task: Task for which to prepare environment
Returns:
True if script ran successfully, False if script doesn't exist
"""
task_dir = task.task_instruction_path.parent
prepare_script = task_dir / "prepare_environment.py"
if not prepare_script.exists():
logger.debug(f"No prepare_environment.py found for task {task.name}")
return False
logger.info(f"| Running prepare_environment.py for task {task.name}")
# Set up environment variables for the script
env = os.environ.copy()
env.update({
"SUPABASE_API_URL": self.api_url,
"SUPABASE_API_KEY": self.api_key,
"POSTGRES_HOST": self.postgres_host,
"POSTGRES_PORT": str(self.postgres_port),
"POSTGRES_DATABASE": self.postgres_database,
"POSTGRES_USERNAME": self.postgres_user,
"POSTGRES_PASSWORD": self.postgres_password,
})
try:
# Run the prepare_environment.py script
result = subprocess.run(
[sys.executable, str(prepare_script)],
cwd=str(task_dir), # Run from task directory
env=env,
capture_output=True,
text=True,
timeout=300, # 5 minute timeout
)
if result.returncode == 0:
logger.info(f"| ✓ Environment preparation completed for {task.name}")
if result.stdout.strip():
logger.debug(f"| prepare_environment.py output: {result.stdout}")
return True
else:
logger.error(f"| ✗ Environment preparation failed for {task.name}")
logger.error(f"| Error output: {result.stderr}")
raise RuntimeError(f"prepare_environment.py failed with exit code {result.returncode}")
except subprocess.TimeoutExpired:
logger.error(f"✗ Environment preparation timed out for {task.name}")
raise RuntimeError("prepare_environment.py execution timed out")
except Exception as e:
logger.error(f"✗ Failed to run prepare_environment.py for {task.name}: {e}")
raise
def _get_timestamp(self) -> str:
"""Get timestamp for unique naming."""
from datetime import datetime
return datetime.now().strftime("%Y%m%d%H%M%S")
def _drop_schema(self, schema_name: str) -> None:
"""Drop schema and all its contents."""
conn_params = {
"host": self.postgres_host,
"port": self.postgres_port,
"user": self.postgres_user,
"password": self.postgres_password,
"database": self.postgres_database,
}
conn = psycopg2.connect(**conn_params)
conn.autocommit = True
try:
with conn.cursor() as cur:
cur.execute(
sql.SQL("DROP SCHEMA IF EXISTS {} CASCADE").format(
sql.Identifier(schema_name)
)
)
logger.debug(f"| Dropped schema: {schema_name}")
finally:
conn.close()
def _create_schema(self, schema_name: str) -> None:
"""Create empty schema."""
conn_params = {
"host": self.postgres_host,
"port": self.postgres_port,
"user": self.postgres_user,
"password": self.postgres_password,
"database": self.postgres_database,
}
conn = psycopg2.connect(**conn_params)
conn.autocommit = True
try:
with conn.cursor() as cur:
cur.execute(
sql.SQL("CREATE SCHEMA {}").format(sql.Identifier(schema_name))
)
logger.debug(f"| Created schema: {schema_name}")
finally:
conn.close()
def _get_all_tables(self) -> List[Dict[str, str]]:
"""Get list of all user tables.
Returns:
List of dicts with 'schema' and 'name' keys
"""
conn_params = {
"host": self.postgres_host,
"port": self.postgres_port,
"user": self.postgres_user,
"password": self.postgres_password,
"database": self.postgres_database,
}
conn = psycopg2.connect(**conn_params)
try:
with conn.cursor() as cur:
cur.execute("""
SELECT table_schema, table_name
FROM information_schema.tables
WHERE table_type = 'BASE TABLE'
AND table_schema NOT IN ('information_schema', 'pg_catalog')
AND table_schema NOT LIKE 'pg_%'
AND table_name NOT LIKE '\\_%'
ORDER BY table_schema, table_name
""")
rows = cur.fetchall()
return [{"schema": row[0], "name": row[1]} for row in rows]
finally:
conn.close()
def _drop_table(self, schema_name: str, table_name: str) -> None:
"""Drop a specific table or materialized view."""
conn_params = {
"host": self.postgres_host,
"port": self.postgres_port,
"user": self.postgres_user,
"password": self.postgres_password,
"database": self.postgres_database,
}
conn = psycopg2.connect(**conn_params)
conn.autocommit = True
try:
with conn.cursor() as cur:
# Try dropping as table first
cur.execute(
sql.SQL("DROP TABLE IF EXISTS {}.{} CASCADE").format(
sql.Identifier(schema_name),
sql.Identifier(table_name)
)
)
# Also try dropping as materialized view (in case agent created one)
cur.execute(
sql.SQL("DROP MATERIALIZED VIEW IF EXISTS {}.{} CASCADE").format(
sql.Identifier(schema_name),
sql.Identifier(table_name)
)
)
logger.debug(f"| Dropped table/view: {schema_name}.{table_name}")
finally:
conn.close()
def _restore_from_backup(self, category_name: str) -> bool:
"""Restore from backup file.
Tables may be restored into public schema or category-specific schema
depending on how the backup was created.
Args:
category_name: Name of category (e.g., 'employees', 'chinook', 'lego')
Returns:
True if backup was restored, False if no backup exists
"""
# Path to backup file (same as used by Insforge/Postgres)
backup_dir = Path(__file__).parent.parent.parent.parent / "postgres_state"
backup_file = backup_dir / f"{category_name}.backup"
logger.debug(f"| Looking for backup at: {backup_file}")
if not backup_file.exists():
logger.info(f"| ○ No backup file found: {backup_file}")
return False
logger.info(f"| Restoring {category_name} from backup...")
# Set up environment for pg_restore
env = os.environ.copy()
env["PGPASSWORD"] = self.postgres_password
try:
# Restore backup
result = subprocess.run(
[
"pg_restore",
"-h", self.postgres_host,
"-p", str(self.postgres_port),
"-U", self.postgres_user,
"-d", self.postgres_database,
"-v",
str(backup_file),
],
env=env,
capture_output=True,
text=True,
timeout=120, # 2 minute timeout
)
if result.returncode != 0 and "ERROR" in result.stderr:
logger.warning(f"| pg_restore had errors for {category_name}: {result.stderr}")
return False
logger.info(f"| ✓ {category_name} restored successfully")
return True
except subprocess.TimeoutExpired:
logger.error(f"| ✗ Restore timed out for {category_name}")
return False
except Exception as e:
logger.error(f"| ✗ Failed to restore {category_name}: {e}")
return False
def get_service_config_for_agent(self) -> dict:
"""Get configuration for agent execution.
This configuration is passed to the agent/MCP server so it can
connect to the Supabase/PostgREST endpoint.
Returns:
Dictionary containing API URL and API key
"""
config = {
"api_url": self.api_url,
"api_key": self.api_key,
"schema": "public", # Default schema for PostgREST
}
# Include current task context if available
if self._current_task_context:
config["task_context"] = self._current_task_context
# If task uses a specific schema, include it
if self._current_task_context.get("schema"):
config["schema"] = self._current_task_context["schema"]
return config
def set_verification_environment(self, messages_path: str = None) -> None:
"""Set environment variables needed for verification scripts.
Args:
messages_path: Optional path to messages.json file for verification
"""
os.environ["SUPABASE_API_URL"] = self.api_url
os.environ["SUPABASE_API_KEY"] = self.api_key
# Set PostgreSQL connection details for direct database verification
os.environ["POSTGRES_HOST"] = self.postgres_host
os.environ["POSTGRES_PORT"] = str(self.postgres_port)
os.environ["POSTGRES_DATABASE"] = self.postgres_database
os.environ["POSTGRES_USERNAME"] = self.postgres_user
os.environ["POSTGRES_PASSWORD"] = self.postgres_password
if messages_path:
os.environ["MCP_MESSAGES"] = str(messages_path)
logger.debug("Verification environment variables set for Supabase (including direct postgres access)")
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