# Phase 1.1 Complete: Database Migrations

## Status: ✅ COMPLETE

**Completion Date**: January 12, 2024

## Summary

Phase 1.1 (Database Migrations) has been successfully completed. All database schema migrations have been created and are ready to be applied.

## What Was Accomplished

### 1. Migration Files Created (12 migrations)

| Migration | Description | Tables/Objects |
|-----------|-------------|----------------|
| `20240101000001_create_schema.sql` | Base schema setup | `attune` schema, service role, extensions |
| `20240101000002_create_enums.sql` | Enum type definitions | 11 enum types |
| `20240101000003_create_pack_table.sql` | Pack table | `pack` table + indexes + triggers |
| `20240101000004_create_runtime_worker.sql` | Runtime environment tables | `runtime`, `worker` tables |
| `20240101000005_create_trigger_sensor.sql` | Event monitoring tables | `trigger`, `sensor` tables |
| `20240101000006_create_action_rule.sql` | Automation logic tables | `action`, `rule` tables |
| `20240101000007_create_event_enforcement.sql` | Event execution tables | `event`, `enforcement` tables |
| `20240101000008_create_execution_inquiry.sql` | Execution tracking tables | `execution`, `inquiry` tables |
| `20240101000009_create_identity_perms.sql` | Access control tables | `identity`, `permission_set`, `permission_assignment`, `policy` tables |
| `20240101000010_create_key_table.sql` | Secrets storage table | `key` table + validation triggers |
| `20240101000011_create_notification_artifact.sql` | Supporting tables | `notification`, `artifact` tables + pg_notify trigger |
| `20240101000012_create_additional_indexes.sql` | Performance optimization | 60+ indexes (B-tree, GIN, composite) |

### 2. Total Objects Created

- **18 Tables**: All core Attune data models
- **11 Enum Types**: Type-safe status and category enums
- **100+ Indexes**: B-tree, GIN (JSONB/arrays), and composite indexes
- **20+ Triggers**: Auto-update timestamps, validation, notifications
- **5+ Functions**: Validation logic, pg_notify handlers
- **Constraints**: Foreign keys, check constraints, unique constraints

### 3. Key Features Implemented

#### Automatic Timestamp Management
- All tables have `created` and `updated` timestamps
- Triggers automatically update `updated` on row modifications

#### Reference Preservation
- `*_ref` columns preserve string references even when entities are deleted
- Enables audit trails and historical tracking

#### Soft Delete Support
- Foreign keys use `ON DELETE SET NULL` for historical preservation
- `ON DELETE CASCADE` for true dependencies

#### Validation Constraints
- Lowercase reference validation
- Format validation (pack.name patterns)
- Semantic versioning validation for packs
- Owner validation for keys
- Port range validation

#### Performance Optimization
- B-tree indexes on frequently queried columns
- GIN indexes on JSONB columns for fast JSON queries
- GIN indexes on array columns
- Composite indexes for common query patterns
- Strategic partial indexes for filtered queries

#### PostgreSQL Features
- JSONB for flexible schema storage
- Array types for multi-value fields
- Enum types for constrained values
- Triggers for data validation
- `pg_notify` for real-time notifications

### 4. Documentation

- ✅ **migrations/README.md**: Comprehensive migration guide
  - Running migrations (SQLx CLI and manual)
  - Database setup instructions
  - Schema overview
  - Troubleshooting guide
  - Best practices

### 5. Tooling

- ✅ **scripts/setup-db.sh**: Database setup automation script
  - Creates database
  - Runs migrations
  - Verifies schema
  - Supports both SQLx and manual execution
  - Configurable via environment variables

## Database Schema Overview

```
attune schema
├── Core Tables
│   ├── pack               (18 rows expected initially)
│   ├── runtime            (varies by packs)
│   └── worker             (varies by deployment)
├── Event System
│   ├── trigger            (managed by packs)
│   ├── sensor             (managed by packs)
│   └── event              (grows with activity)
├── Automation
│   ├── action             (managed by packs)
│   ├── rule               (managed by packs)
│   └── enforcement        (grows with activity)
├── Execution
│   ├── execution          (grows with activity)
│   └── inquiry            (grows with workflow usage)
├── Access Control
│   ├── identity           (users/services)
│   ├── permission_set     (roles)
│   ├── permission_assignment (user-role mapping)
│   └── policy             (execution policies)
└── Supporting
    ├── key                (secrets/config)
    ├── notification       (real-time events)
    └── artifact           (execution outputs)
```

## Testing Instructions

### 1. Create Database and Run Migrations

```bash
# Option 1: Use the setup script (recommended)
./scripts/setup-db.sh

# Option 2: Manual setup
createdb attune
export DATABASE_URL="postgresql://postgres:postgres@localhost:5432/attune"
sqlx migrate run

# Option 3: Manual with psql
createdb attune
for file in migrations/*.sql; do
    psql -U postgres -d attune -f "$file"
done
```

### 2. Verify Schema

```bash
# Connect to database
psql -U postgres -d attune

# Check schema exists
\dn attune

# List all tables
\dt attune.*

# List all enums
\dT attune.*

# Check specific table
\d attune.pack

# Verify indexes
\di attune.*

# Check triggers
SELECT * FROM information_schema.triggers WHERE trigger_schema = 'attune';
```

### 3. Test Basic Operations

```sql
-- Insert a test pack
INSERT INTO attune.pack (ref, label, version, description)
VALUES ('core', 'Core Pack', '1.0.0', 'Core automation components');

-- Verify created/updated timestamps
SELECT ref, created, updated FROM attune.pack;

-- Test update trigger
UPDATE attune.pack SET label = 'Core Pack Updated' WHERE ref = 'core';
SELECT ref, created, updated FROM attune.pack;

-- Verify constraints
INSERT INTO attune.pack (ref, label, version)
VALUES ('INVALID', 'Test', '1.0.0'); -- Should fail (uppercase ref)

INSERT INTO attune.pack (ref, label, version)
VALUES ('test', 'Test', 'invalid'); -- Should fail (invalid semver)

-- Test foreign key relationships
INSERT INTO attune.action (ref, pack, pack_ref, label, description, entrypoint)
VALUES ('core.test', 1, 'core', 'Test Action', 'Test', 'actions/test.py');

-- Test cascade delete
DELETE FROM attune.pack WHERE ref = 'core';
SELECT COUNT(*) FROM attune.action; -- Should be 0

-- Clean up
DELETE FROM attune.pack;
```

## Next Steps: Phase 1.2 - Repository Layer

Now that the database schema is complete, the next step is to implement the repository layer:

### Tasks for Phase 1.2

1. **Create Repository Module Structure**
   - `crates/common/src/repositories/mod.rs`
   - Individual repository modules for each table

2. **Implement Repository Traits**
   - CRUD operations
   - Query builders
   - Transaction support

3. **Write Repository Tests**
   - Unit tests for each repository
   - Integration tests with test database

### Estimated Timeline

- Repository implementation: 1-2 weeks
- Testing: 3-5 days

## Files Changed/Added

```
attune/
├── migrations/
│   ├── README.md                                   [NEW]
│   ├── 20240101000001_create_schema.sql           [NEW]
│   ├── 20240101000002_create_enums.sql            [NEW]
│   ├── 20240101000003_create_pack_table.sql       [NEW]
│   ├── 20240101000004_create_runtime_worker.sql   [NEW]
│   ├── 20240101000005_create_trigger_sensor.sql   [NEW]
│   ├── 20240101000006_create_action_rule.sql      [NEW]
│   ├── 20240101000007_create_event_enforcement.sql [NEW]
│   ├── 20240101000008_create_execution_inquiry.sql [NEW]
│   ├── 20240101000009_create_identity_perms.sql   [NEW]
│   ├── 20240101000010_create_key_table.sql        [NEW]
│   ├── 20240101000011_create_notification_artifact.sql [NEW]
│   └── 20240101000012_create_additional_indexes.sql [NEW]
├── scripts/
│   └── setup-db.sh                                 [NEW]
├── docs/
│   └── phase-1-1-complete.md                       [NEW]
└── TODO.md                                         [UPDATED]
```

## Notes

- All migrations follow SQLx naming conventions
- Migrations are idempotent where possible
- Service role `svc_attune` created with appropriate permissions
- Default password should be changed in production
- Extensions `uuid-ossp` and `pgcrypto` are enabled

## Review Checklist

- [x] All 12 migration files created
- [x] Migration README documentation
- [x] Database setup script
- [x] All tables have proper indexes
- [x] All tables have update triggers for timestamps
- [x] Foreign key constraints properly configured
- [x] Check constraints for validation
- [x] Enum types for all status fields
- [x] GIN indexes for JSONB/array columns
- [x] Comments on tables and columns
- [x] Service role with proper permissions
- [x] pg_notify trigger for notifications

## Success Criteria Met

✅ All migration files created and documented
✅ Database setup automation script
✅ Comprehensive documentation
✅ Schema matches Python reference models
✅ Performance optimizations in place
✅ Ready for repository layer implementation

---

**Phase 1.1 Status**: ✅ **COMPLETE**

**Ready for**: Phase 1.2 - Repository Layer Implementation