# Mission Deletion Flow - Complete Analysis from Logs

## 🔍 Analysis of Your Deletion Flow

Based on your logs, here's what's happening:

---

## ✅ What's Working

1. **Mission is fetched correctly** ✅
   ```
   SELECT "public"."Mission" WHERE "id" = '805c1d8c-1bd4-41e7-9cf1-d22631dae260'
   ```

2. **Attachments are fetched** ✅
   ```
   SELECT "public"."Attachment" WHERE "missionId" = '805c1d8c-1bd4-41e7-9cf1-d22631dae260'
   ```

3. **N8N deletion workflow is called** ✅
   ```
   Starting N8N deletion workflow
   Triggering n8n mission deletion workflow
   ```

4. **N8N responds successfully** ✅
   ```
   Deletion webhook response { status: 200 }
   Parsed deletion workflow result { success: true, hasError: false }
   ```

5. **Mission is deleted from database** ✅
   ```
   DELETE FROM "public"."Mission" WHERE "id" = '805c1d8c-1bd4-41e7-9cf1-d22631dae260'
   Mission deleted successfully from database
   ```

---

## ❌ Critical Problems

### Problem 1: N8N_API_KEY Not Set

```
N8N_API_KEY is not set in environment variables
API key present { present: false }
```

**Impact**: N8N workflow runs but may not have proper authentication.

### Problem 2: All Integration IDs Are NULL/Empty

**What N8N Receives**:
```json
{
  "missionId": "805c1d8c-1bd4-41e7-9cf1-d22631dae260",
  "name": "libra",
  "repoName": "",                    // ❌ EMPTY
  "leantimeProjectId": 0,            // ❌ ZERO
  "documentationCollectionId": "",   // ❌ EMPTY
  "rocketchatChannelId": "",         // ❌ EMPTY
  "giteaRepositoryUrl": null,        // ❌ NULL
  "outlineCollectionId": null,       // ❌ NULL
  "rocketChatChannelId": null,       // ❌ NULL
  "penpotProjectId": null            // ❌ NULL
}
```

**Root Cause**: The mission was created **without integration IDs being saved** because:
1. Mission was created in database ✅
2. N8N workflow was triggered ✅
3. N8N created integrations ✅
4. N8N tried to call `/api/missions/mission-created` ❌
5. **Endpoint returned 500 error** (N8N_API_KEY not configured) ❌
6. **IDs were never saved to database** ❌

### Problem 3: N8N Cannot Delete Integrations

Because N8N receives empty IDs:
- ❌ Cannot delete Gitea repository (no `repoName`)
- ❌ Cannot close Leantime project (no `leantimeProjectId`)
- ❌ Cannot delete Outline collection (no `documentationCollectionId`)
- ❌ Cannot close RocketChat channel (no `rocketchatChannelId`)

**Result**: External integrations remain orphaned even though mission is deleted.

---

## 🔄 Complete Flow Breakdown

### Step 1: Frontend Calls DELETE
```
DELETE /api/missions/805c1d8c-1bd4-41e7-9cf1-d22631dae260
```

### Step 2: Backend Fetches Mission
```sql
SELECT "Mission" WHERE "id" = '805c1d8c-1bd4-41e7-9cf1-d22631dae260'
```

**Result**: Mission found, but all integration IDs are `null`:
- `leantimeProjectId`: null
- `outlineCollectionId`: null
- `rocketChatChannelId`: null
- `giteaRepositoryUrl`: null

### Step 3: Backend Prepares Deletion Data
```javascript
{
  repoName: "",                    // Extracted from null giteaRepositoryUrl
  leantimeProjectId: 0,            // null || 0 = 0
  documentationCollectionId: "",   // null || '' = ''
  rocketchatChannelId: ""         // null || '' = ''
}
```

### Step 4: N8N Workflow Called
```
POST https://brain.slm-lab.net/webhook-test/mission-delete
```

**Headers**:
- `x-api-key`: (empty - N8N_API_KEY not set)

**Body**: (with empty IDs as shown above)

### Step 5: N8N Workflow Executes
- ✅ Receives request
- ❌ Cannot delete integrations (no IDs)
- ✅ Returns success (but didn't actually delete anything)

### Step 6: Mission Deleted from Database
```sql
DELETE FROM "Mission" WHERE "id" = '805c1d8c-1bd4-41e7-9cf1-d22631dae260'
```

**CASCADE deletes**:
- ✅ MissionUsers
- ✅ Attachments

**But external integrations remain**:
- ❌ Gitea repository still exists
- ❌ Leantime project still exists
- ❌ Outline collection still exists
- ❌ RocketChat channel still exists

---

## 🎯 Root Cause Summary

### Why IDs Are NULL

1. **Mission Creation**:
   - Mission created in database ✅
   - N8N workflow triggered ✅
   - N8N created integrations ✅

2. **N8N Callback Fails**:
   - N8N tries to call `/api/missions/mission-created`
   - Endpoint checks for `N8N_API_KEY` in environment
   - `N8N_API_KEY` is not set ❌
   - Endpoint returns 500: "Server configuration error" ❌
   - **IDs are never saved** ❌

3. **Mission Deletion**:
   - Mission has no integration IDs (all null)
   - N8N receives empty IDs
   - Cannot delete integrations
   - **Integrations remain orphaned** ❌

---

## ✅ Solutions

### Solution 1: Fix N8N_API_KEY (IMMEDIATE)

**Add to environment variables**:
```env
N8N_API_KEY=LwgeE1ntADD20OuWC88S3pR0EaO7FtO4
```

**Then**:
1. Restart your application
2. Create a new mission
3. Verify IDs are saved to database
4. Delete mission - should work correctly

### Solution 2: Fix Existing Missions (MIGRATION)

For missions that already exist without IDs:

**Option A: Manual Update**
```sql
UPDATE "Mission" 
SET 
  "giteaRepositoryUrl" = 'https://gite.slm-lab.net/alma/repo-name',
  "leantimeProjectId" = '123',
  "outlineCollectionId" = 'collection-id',
  "rocketChatChannelId" = 'channel-id'
WHERE "id" = 'mission-id';
```

**Option B: Query External Services**
- Query Gitea API to find repositories
- Query Leantime API to find projects
- Query Outline API to find collections
- Query RocketChat API to find channels
- Update database with found IDs

**Option C: Re-create Missions**
- Delete missions without IDs
- Re-create them (with N8N_API_KEY fixed, IDs will be saved)

### Solution 3: Make N8N Callback More Resilient

**Modify `/api/missions/mission-created` endpoint** to handle missing API key more gracefully:

```typescript
// Instead of returning 500, log warning and continue
if (!expectedApiKey) {
  logger.warn('N8N_API_KEY not configured, but continuing anyway', {
    missionId: body.missionId
  });
  // Continue without API key validation (less secure but works)
  // OR require API key but provide better error message
}
```

**Not recommended** for production (security risk), but could work for development.

---

## 📊 Current State vs Desired State

### Current State (Your Logs)

```
Mission in DB:
  - leantimeProjectId: null
  - outlineCollectionId: null
  - rocketChatChannelId: null
  - giteaRepositoryUrl: null

N8N Receives:
  - repoName: ""
  - leantimeProjectId: 0
  - documentationCollectionId: ""
  - rocketchatChannelId: ""

Result:
  - Mission deleted ✅
  - Integrations NOT deleted ❌
```

### Desired State

```
Mission in DB:
  - leantimeProjectId: "123"
  - outlineCollectionId: "collection-456"
  - rocketChatChannelId: "channel-789"
  - giteaRepositoryUrl: "https://gite.slm-lab.net/alma/repo-name"

N8N Receives:
  - repoName: "repo-name"
  - leantimeProjectId: 123
  - documentationCollectionId: "collection-456"
  - rocketchatChannelId: "channel-789"

Result:
  - Mission deleted ✅
  - Integrations deleted ✅
```

---

## 🔧 Immediate Actions Required

1. **✅ Add N8N_API_KEY to environment**
   ```env
   N8N_API_KEY=LwgeE1ntADD20OuWC88S3pR0EaO7FtO4
   ```

2. **✅ Restart application**

3. **✅ Test mission creation**
   - Create a new mission
   - Check database - IDs should be saved
   - Delete mission - should work correctly

4. **⚠️ Fix existing missions**
   - Update existing missions with their integration IDs
   - Or delete and re-create them

---

## 📝 Summary

**The deletion flow is working correctly**, but:

1. **N8N_API_KEY is missing** → Endpoint returns 500 error
2. **IDs are never saved** → Mission has null integration IDs
3. **N8N receives empty IDs** → Cannot delete integrations
4. **Integrations remain orphaned** → External resources not cleaned up

**Fix**: Add `N8N_API_KEY` to environment variables, then new missions will work correctly. Existing missions need manual update or re-creation.

---

**Document Created**: $(date)
**Status**: Deletion flow works, but integration cleanup fails due to missing IDs