#!/bin/bash
# Check status of Docker services (bitcoind signet, mempool) and mining.
# Local only: no SSH. Run on the machine where Docker runs.
# Usage: ./data/check-services-status.sh

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
BITCOIND_CONTAINER="bitcoin-signet-instance"
DATADIR="/root/.bitcoin"

echo "=== État des services (${BITCOIND_CONTAINER}, mempool) ==="
echo ""

# Docker containers
echo "--- Conteneurs Docker ---"
docker ps -a --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" 2>/dev/null || echo "Docker non disponible ou erreur"
echo ""

# Bitcoind
if docker ps -q -f "name=^${BITCOIND_CONTAINER}$" 2>/dev/null | grep -q .; then
  echo "--- Bitcoind (${BITCOIND_CONTAINER}) ---"
  BITCOIN_DIR=$(docker exec "$BITCOIND_CONTAINER" printenv BITCOIN_DIR 2>/dev/null || echo "$DATADIR")
  if docker exec "$BITCOIND_CONTAINER" bitcoin-cli -datadir="$BITCOIN_DIR" getblockchaininfo &>/dev/null; then
    BCI=$(docker exec "$BITCOIND_CONTAINER" bitcoin-cli -datadir="$BITCOIN_DIR" getblockchaininfo 2>/dev/null)
    BLOCKS=$(echo "$BCI" | jq -r '.blocks // "?"')
    CHAIN=$(echo "$BCI" | jq -r '.chain // "?"')
    HEADERS=$(echo "$BCI" | jq -r '.headers // "?"')
    echo "  RPC: OK"
    echo "  Chaîne: $CHAIN | Blocs: $BLOCKS | Headers: $HEADERS"
    if [ "$BLOCKS" != "?" ]; then
      TIP_TIME=$(docker exec "$BITCOIND_CONTAINER" bitcoin-cli -datadir="$BITCOIN_DIR" getblock "$(docker exec "$BITCOIND_CONTAINER" bitcoin-cli -datadir="$BITCOIN_DIR" getblockhash "$BLOCKS" 2>/dev/null)" 2>/dev/null | jq -r '.time // 0')
      if [ -n "$TIP_TIME" ] && [ "$TIP_TIME" != "0" ]; then
        echo "  Dernier bloc (time): $TIP_TIME ($(date -d "@${TIP_TIME}" 2>/dev/null || echo "N/A"))"
      fi
    fi
  else
    echo "  RPC: HORS SERVICE (bitcoind ne répond pas)"
    RPC_ERROR=$(docker exec "$BITCOIND_CONTAINER" bitcoin-cli -datadir="$BITCOIN_DIR" getblockchaininfo 2>&1 || true)
    if echo "$RPC_ERROR" | grep -q "Loading wallet"; then
      echo "  ⚠️  Bitcoind est bloqué en chargement de wallet"
      echo "  Cause probable: wallet volumineux ou corrompu"
      echo "  Solution: Attendre quelques minutes ou redémarrer: docker restart ${BITCOIND_CONTAINER}"
    elif echo "$RPC_ERROR" | grep -q "Could not connect"; then
      echo "  ⚠️  Bitcoind ne répond pas du tout"
      echo "  Cause probable: bitcoind a planté dans le conteneur"
      echo "  Solution: Redémarrer le conteneur: docker restart ${BITCOIND_CONTAINER}"
    else
      echo "  Erreur RPC: $RPC_ERROR"
      echo "  Solution: Redémarrer le conteneur: docker restart ${BITCOIND_CONTAINER}"
    fi
  fi
  echo ""
  echo "  Processus dans le conteneur:"
  docker exec "$BITCOIND_CONTAINER" ps aux 2>/dev/null | head -20 || true
  # Vérifier si bitcoind est présent dans les processus
  if ! docker exec "$BITCOIND_CONTAINER" ps aux 2>/dev/null | grep -q "[b]itcoind"; then
    echo "  ⚠️  ATTENTION: Le processus bitcoind n'est pas présent dans le conteneur"
    echo "  Le conteneur est actif mais bitcoind a planté"
    echo "  Solution immédiate: docker restart ${BITCOIND_CONTAINER}"
  fi
  echo ""
  echo "  Dernières lignes debug.log:"
  docker exec "$BITCOIND_CONTAINER" tail -3 "${BITCOIN_DIR}/signet/debug.log" 2>/dev/null || true
else
  echo "--- Bitcoind: conteneur ${BITCOIND_CONTAINER} non trouvé ou arrêté ---"
fi
echo ""

# Mempool stack
echo "--- Mempool (docker-compose.signet.yml) ---"
if [ -f "${PROJECT_DIR}/mempool/docker-compose.signet.yml" ]; then
  (cd "${PROJECT_DIR}/mempool" && docker compose -f docker-compose.signet.yml ps 2>/dev/null) || \
  (cd "${PROJECT_DIR}/mempool" && docker-compose -f docker-compose.signet.yml ps 2>/dev/null) || true
else
  echo "  Fichier compose non trouvé"
fi
echo ""

echo "=== Fin du rapport ==="