# Element X ADA - Phase 4 Build Result

**Date:** 2026-03-28
**Branch:** `phase1-dev`
**Commit:** `1dbc4c92c4`
**Build Status:** ✅ SUCCESS

---

## Features Implemented

### 1. Wallet Setup Flow ✅

Created a complete wallet setup flow accessible from `WalletPanelNode.onSetupWallet()`:

**New Files:**
- `features/wallet/impl/.../setup/WalletSetupState.kt` — State data class and events
- `features/wallet/impl/.../setup/WalletSetupPresenter.kt` — Business logic, wallet generation
- `features/wallet/impl/.../setup/WalletSetupView.kt` — Compose UI with 5 screens
- `features/wallet/impl/.../setup/WalletSetupNode.kt` — Appyx navigation node

**State Machine:**
```
WELCOME → GENERATING → SHOW_ADDRESS → BACKUP_PROMPT → COMPLETE
```

**Features:**
- "Create New Wallet" calls `CardanoKeyStorage.generateWallet()`
- "Import Existing Wallet" shows placeholder message (out of scope for alpha)
- Shows generated Cardano address
- Displays 24-word mnemonic in 3-column grid
- FLAG_SECURE enabled when displaying mnemonic (prevents screenshots)
- "I have written down my recovery phrase" checkbox required
- Reinitializes wallet manager on completion

**SSSS Decision:** Skipped for alpha. Wallet backup is local-only. Added TODO comment for Phase 5 Matrix SSSS integration.

### 2. Payment Event Wiring ✅

After successful transaction confirmation, the payment event is now sent to the Matrix room timeline:

**Modified Files:**
- `PaymentProgressPresenter.kt` — Added `paymentEventSender`, `roomId`, event sending logic
- `PaymentProgressNode.kt` — Added `roomId` to `Inputs`
- `PaymentFlowNode.kt` — Added `roomId` to `NavTarget.Progress`, passthrough logic
- `MessagesFlowNode.kt` — Added `NavTarget.WalletSetup` and resolve case

**Flow:**
1. Tx builds and signs
2. Tx submits to Koios
3. `PaymentStatusPoller` confirms transaction
4. `SubmissionState.Confirmed` triggers `sendPaymentEvent()`
5. Payment card appears in room timeline

**Error Handling:** Event send failure is non-fatal (tx already succeeded).

---

## Files Changed

| File | Change |
|------|--------|
| `setup/WalletSetupState.kt` | New |
| `setup/WalletSetupPresenter.kt` | New |
| `setup/WalletSetupView.kt` | New |
| `setup/WalletSetupNode.kt` | New |
| `MessagesFlowNode.kt` | Modified — NavTarget.WalletSetup |
| `PaymentFlowNode.kt` | Modified — roomId passthrough |
| `PaymentProgressNode.kt` | Modified — roomId in Inputs |
| `PaymentProgressPresenter.kt` | Modified — event sending |

**Total:** 4 new files, 4 modified files, 646 lines added

---

## Build Output

```
BUILD SUCCESSFUL in 1m 28s
3819 actionable tasks: 20 executed, 3799 up-to-date
```

Only warnings (deprecation notices, not errors).

---

## Testing Checklist

### Wallet Setup
- [ ] Open wallet panel with no wallet → "Set Up Wallet" button visible
- [ ] Click "Set Up Wallet" → navigates to setup screen
- [ ] Click "Create New Wallet" → spinner → address shown
- [ ] "Continue to Backup" → 24-word mnemonic displayed
- [ ] FLAG_SECURE active (screenshots blocked)
- [ ] Checkbox enables "Complete Setup"
- [ ] Done → returns to wallet panel with wallet initialized

### Payment Event
- [ ] `/pay 10 addr_test1...` → confirmation → progress
- [ ] After confirmation → payment card appears in timeline
- [ ] Card shows tx hash, amount, network
- [ ] "View on Explorer" opens Cardanoscan

---

## Next Steps (Phase 5)

1. SSSS backup integration when Matrix SDK exposes `setAccountData`
2. Import existing wallet flow
3. QR code address sharing
4. Transaction history tab
5. Multi-asset support (tokens, NFTs)