koopa-admin-log/configs/bank-landing/README.md

# Bank landing (`bank.hacktivism.ch`)

English intro for **GOA exploration**: put coins in a GNU Taler wallet, optionally
open your own bank account, and point merchants at `taler.hacktivism.ch`.

| Public URL | What |
|------------|------|
| `https://bank.hacktivism.ch/` · `/intro/` | Landing (nginx in bank container → host **9013**, Caddy) |
| `https://bank.hacktivism.ch/intro/stats.json` | **Live stats** (written *inside* bank container) |
| `https://bank.hacktivism.ch/webui/` | libeufin-bank SPA (register · login · withdraw) when libeufin is up on **9012** |
| `https://exchange.hacktivism.ch/` | Exchange (ToS `/terms`, keys `/keys`) |
| `https://taler.hacktivism.ch/` | Merchant backend |

## User flow (documented on the page)

Same **one-step** pattern as [taler-ops.ch Android/iOS guides](https://taler-ops.ch/en/users-android.html):

1. **Install wallet** — Android (Play Store / F-Droid) and iOS (App Store), plus hub `wallet.taler.net`.
2. **One QR / link** — `taler://withdraw-exchange/exchange.hacktivism.ch/`  
   Adds the GOA exchange **and** starts withdrawal (accept ToS → enter amount).

The old two-step path (`taler://add-exchange/…` + demo `taler://withdraw/…` from `withdraw.uri`) is **removed** from the landing.

Optional: bank UI (`/webui/`) and merchant (`taler.hacktivism.ch`) stay further down.

### CLI sketch (fresh wallet DB)

```bash
# equivalent one-step in CLI terms:
taler-wallet-cli exchanges add https://exchange.hacktivism.ch/
taler-wallet-cli exchanges accept-tos https://exchange.hacktivism.ch/
# then withdraw from the exchange (amount chosen in wallet UI)
```

---

## Live stats (in bank container)

Stats are **not** computed on the laptop or host browser. A small script runs
**inside the bank container**, queries libeufin for the demo funding account
(`explorer`), and writes a public JSON file next to the landing assets.

| Piece | Path / role |
|-------|-------------|
| Generator (in-container) | `/usr/local/bin/landing-stats.sh` |
| Source in admin-log | `scripts/taler-bank/landing-stats.sh` |
| Host installer | `scripts/taler-bank/landing-stats-install.sh` |
| Output | `/var/www/bank-landing/stats.json` → `https://bank.hacktivism.ch/intro/stats.json` |
| Landing UI | `index.html` section **GOA flow · live** |

### What the page shows

- **Bank accounts** — registered accounts (libeufin `GET /accounts`, admin)
- **Wallets involved** — unique reserve pubs from Taler withdrawal debits (≈ individual wallet withdraws)
- **Withdraws / total out** — customer debit withdrawals only (exchange mirror skipped)
- **Last withdraws** — recent list with amount, time (**CEST** / `Europe/Zurich`), bank username
- **Last 24h / 7d** — count · amount
- Footer: updated time (CEST), user-account count, accounts that funded withdraws — **no** “demo QR / pool explorer”

### `stats.json` shape (abridged)

```json
{
  "ok": true,
  "currency": "GOA",
  "generated_at": "2026-07-09T18:55Z",
  "account": "explorer",
  "balance": "GOA:960",
  "withdraws": {
    "count": 4,
    "total_amount": "GOA:40",
    "last_amount": "GOA:10",
    "last_at": "2026-07-09T08:49Z",
    "last_24h": { "count": 2, "amount": "GOA:20" },
    "last_7d": { "count": 4, "amount": "GOA:40" }
  },
  "flow": {
    "debits_scanned": "GOA:40",
    "credits_scanned": "GOA:1000",
    "tx_scanned": 5
  },
  "demo": {
    "uri": "taler://withdraw/…",
    "amount": "GOA:10",
    "status": "confirmed",
    "ready": false
  },
  "source": "in-container landing-stats.sh"
}
```

### Install + refresh (on koopa host)

```bash
# from laptop: copy scripts, then on koopa:
cd /path/to/koopa-admin-log/scripts/taler-bank

# copy into container + one-shot run
sudo ./landing-stats-install.sh

# every minute inside the container (* * * * *)
sudo ./landing-stats-install.sh --cron
# optional: LANDING_STATS_CRON='*/5 * * * *' ./landing-stats-install.sh --cron

# later: only re-run
sudo ./landing-stats-install.sh --run-only
```

Requirements **inside** the container:

- `curl`, `awk` (mawk OK), `sed`, `date` — **no python**
- libeufin-bank listening on loopback (script auto-detects `PORT` / 9012 / 8080)
- `/root/bank-explorer-password.txt` (or `BANK_PASS=…` on the `podman exec`)
- writable `/var/www/bank-landing/` (same tree nginx uses for `/intro/`)

`make-demo-withdraw-qr.sh` also calls `landing-stats.sh` after refreshing the demo URI,
when the binary is already installed at `/usr/local/bin/landing-stats.sh`.

### Manual one-liner (debug)

```bash
podman exec -e LANDING_DIR=/var/www/bank-landing taler-hacktivism-bank \
  /usr/local/bin/landing-stats.sh
curl -sS https://bank.hacktivism.ch/intro/stats.json | python3 -m json.tool
```

---

## Host / container files

Landing root (nginx in bank container), typically under something like
`/var/www/bank-landing/` or the container path mapped for **9013**:

| File | Role |
|------|------|
| `index.html` | landing (steps + stats panel) |
| `qrcode.min.js` | QR helper |
| `stats.json` | **live stats** (from in-container script) |
| `withdraw.uri` | current demo `taler://withdraw/…` (optional) |
| `withdraw.amount` | e.g. `GOA:10` (optional) |
| `withdraw-watch.ids` | ids for auto-confirm helper (optional) |

## Deploy landing HTML

```bash
# from laptop (example) — path depends on where nginx in the bank container reads from
scp koopa-admin-log/configs/bank-landing/index.html \
  koopa-admin-log/configs/bank-landing/qrcode.min.js \
  hernani@koopa:/tmp/bank-landing/
# then copy into the bank container / host path used by nginx :9013
podman cp /tmp/bank-landing/index.html taler-hacktivism-bank:/var/www/bank-landing/index.html
```

### Demo QR refresh (in container, no python)

```bash
podman exec taler-hacktivism-bank /usr/local/bin/refresh-demo-withdraw.sh
# source: scripts/taler-bank/refresh-demo-withdraw.sh
```

Older host script (needs python3): `scripts/taler-bank/make-demo-withdraw-qr.sh`