#!/usr/bin/env bash
# =============================================================================
# Timmy node — start all services
# Safe to run multiple times; won't double-start a running service.
# =============================================================================
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
SECRETS_FILE="$SCRIPT_DIR/.node-secrets"
LND_DIR="$HOME/.lnd"
LOG_DIR="$HOME/Library/Logs/timmy-node"
LAUNCHD_DIR="$HOME/Library/LaunchAgents"
LNCLI="/opt/homebrew/bin/lncli"

[[ -f "$SECRETS_FILE" ]] && source "$SECRETS_FILE"
mkdir -p "$LOG_DIR"

GREEN='\033[0;32m'; CYAN='\033[0;36m'; YELLOW='\033[1;33m'; NC='\033[0m'
info() { echo -e "${CYAN}[start]${NC} $*"; }
ok()   { echo -e "${GREEN}[ok]${NC} $*"; }
warn() { echo -e "${YELLOW}[warn]${NC} $*"; }

start_launchagent() {
  local label="$1"
  local plist="$LAUNCHD_DIR/$label.plist"
  if ! launchctl list | grep -q "$label"; then
    launchctl load -w "$plist" 2>/dev/null && ok "$label started." || warn "Could not load $label."
  else
    ok "$label is already loaded."
  fi
}

# ─── Bitcoin Core ─────────────────────────────────────────────────────────────
info "Starting Bitcoin Core…"
start_launchagent "com.timmy.bitcoind"

# Wait for RPC to be ready (up to 60s)
info "Waiting for bitcoind RPC (up to 60s)…"
BTC_ARGS=()
[[ -n "${RPC_USER:-}" ]] && BTC_ARGS+=(-rpcuser="$RPC_USER" -rpcpassword="$RPC_PASS")
for i in $(seq 1 12); do
  if /opt/homebrew/bin/bitcoin-cli "${BTC_ARGS[@]}" getblockchaininfo &>/dev/null 2>&1; then
    ok "bitcoind RPC ready."
    break
  fi
  [[ $i -eq 12 ]] && warn "bitcoind RPC not ready after 60s — it may still be starting." || sleep 5
done

# ─── LND ──────────────────────────────────────────────────────────────────────
info "Starting LND…"
start_launchagent "com.timmy.lnd"

# Wait for LND to be ready (up to 60s)
info "Waiting for LND (up to 60s)…"
for i in $(seq 1 12); do
  LND_STATE=$("$LNCLI" --lnddir="$LND_DIR" state 2>/dev/null | python3 -c "import sys,json; d=json.load(sys.stdin); print(d.get('state','?'))" 2>/dev/null || echo "?")
  case "$LND_STATE" in
    RPC_ACTIVE|SERVER_ACTIVE)
      ok "LND is up (state: $LND_STATE)."
      break
      ;;
    WALLET_NOT_CREATED)
      warn "LND wallet needs to be created:"
      echo "    lncli --lnddir=$LND_DIR create"
      echo "    Use password from $SECRETS_FILE"
      break
      ;;
    LOCKED)
      info "LND wallet is locked — unlocking…"
      if [[ -f "$LND_DIR/.wallet-password" ]]; then
        "$LNCLI" --lnddir="$LND_DIR" unlock --stdin < "$LND_DIR/.wallet-password" 2>/dev/null && ok "Wallet unlocked." || warn "Auto-unlock failed — run: lncli --lnddir=$LND_DIR unlock"
      else
        warn "No wallet-password file found. Run: lncli --lnddir=$LND_DIR unlock"
      fi
      break
      ;;
    *)
      [[ $i -eq 12 ]] && warn "LND not ready after 60s (state: $LND_STATE)" || sleep 5
      ;;
  esac
done

# ─── LNbits ───────────────────────────────────────────────────────────────────
info "Starting LNbits…"
start_launchagent "com.timmy.lnbits"

info "Waiting for LNbits HTTP (up to 30s)…"
for i in $(seq 1 6); do
  if curl -sf "http://127.0.0.1:5000/api/v1/health" &>/dev/null; then
    ok "LNbits is up at http://127.0.0.1:5000"
    break
  fi
  [[ $i -eq 6 ]] && warn "LNbits not responding after 30s — check $LOG_DIR/lnbits.err" || sleep 5
done

echo ""
ok "All services started. Run 'bash $SCRIPT_DIR/status.sh' for a full health check."
echo ""
echo "  To expose LNbits to Replit, run:"
echo "  bash $SCRIPT_DIR/expose.sh"
echo ""