# litd + Bitcoin Core Regtest Stack — local development and testing.
#
# Two containers:
#   litd      — Lightning Terminal with bitcoind backend
#   bitcoind  — Bitcoin Core in regtest mode with ZMQ notifications
#
# All litd runtime configuration lives in the mounted config file
# (litd-regtest.conf.template by default). Use docker-start.sh --regtest
# to generate a config with custom profile or debug level.
#
# Usage:
#   skills/lnd/scripts/docker-start.sh --regtest     # Recommended
#   docker compose -f docker-compose-regtest.yml up -d
#   docker compose -f docker-compose-regtest.yml down
#   docker compose -f docker-compose-regtest.yml down -v  # Remove volumes
#
# After starting, create a wallet:
#   skills/lnd/scripts/create-wallet.sh --container litd
#
# Mine blocks:
#   docker exec litd-bitcoind bitcoin-cli -regtest \
#     -rpcuser=devuser -rpcpassword=devpass \
#     generatetoaddress 101 $(docker exec litd lncli --network=regtest newaddress p2tr | jq -r '.address')
#
# Ports:
#   8443  — litd HTTPS
#   10009 — lnd gRPC
#   9735  — Lightning P2P
#   8080  — lnd REST API
#   18443 — Bitcoin Core RPC
#   28332 — ZMQ block notifications
#   28333 — ZMQ tx notifications

services:
  bitcoind:
    image: ${BITCOIN_CORE_IMAGE:-lightninglabs/bitcoin-core}:${BITCOIN_CORE_VERSION:-30}
    container_name: litd-bitcoind
    restart: unless-stopped
    command:
      - -regtest
      - -server=1
      - -rpcuser=devuser
      - -rpcpassword=devpass
      - -rpcallowip=0.0.0.0/0
      - -rpcbind=0.0.0.0
      - -txindex=1
      - -fallbackfee=0.00001
      - -addresstype=bech32m
      - -changetype=bech32m
      - -zmqpubrawblock=tcp://0.0.0.0:28332
      - -zmqpubrawtx=tcp://0.0.0.0:28333
      - -zmqpubhashblock=tcp://0.0.0.0:28332
      - -zmqpubhashtx=tcp://0.0.0.0:28333
    ports:
      - "18443:18443"
      - "28332:28332"
      - "28333:28333"
    volumes:
      - litd-bitcoind-data:/root/.bitcoin
    networks:
      - litd-regtest
    healthcheck:
      test: ["CMD", "bitcoin-cli", "-regtest", "-rpcuser=devuser",
             "-rpcpassword=devpass", "getblockchaininfo"]
      interval: 10s
      timeout: 5s
      retries: 5

  litd:
    image: ${LITD_IMAGE:-lightninglabs/lightning-terminal}:${LITD_VERSION:-v0.16.0-alpha}
    container_name: litd
    restart: unless-stopped
    depends_on:
      bitcoind:
        condition: service_healthy
    entrypoint: ["/bin/sh", "-c", "touch /root/.lnd/wallet-password.txt && cp /tmp/lit.conf /root/.lit/lit.conf && exec litd"]
    ports:
      - "${LITD_HTTPS_PORT:-8443}:8443"
      - "${LND_GRPC_PORT:-10009}:10009"
      - "${LND_P2P_PORT:-9735}:9735"
      - "${LND_REST_PORT:-8080}:8080"
    volumes:
      - litd-data:/root/.lnd
      - litd-lit-data:/root/.lit
      - ${LITD_CONF_PATH:-./litd-regtest.conf.template}:/tmp/lit.conf:ro
    networks:
      - litd-regtest

  # Second litd node (bob) for two-node regtest setups such as L402
  # payment testing where a channel is needed between payer and payee.
  litd-bob:
    image: ${LITD_IMAGE:-lightninglabs/lightning-terminal}:${LITD_VERSION:-v0.16.0-alpha}
    container_name: litd-bob
    restart: unless-stopped
    profiles:
      - two-node
    depends_on:
      bitcoind:
        condition: service_healthy
    entrypoint: ["/bin/sh", "-c", "touch /root/.lnd/wallet-password.txt && cp /tmp/lit.conf /root/.lit/lit.conf && exec litd"]
    ports:
      - "${BOB_LITD_HTTPS_PORT:-8444}:8443"
      - "${BOB_LND_GRPC_PORT:-10010}:10009"
      - "${BOB_LND_P2P_PORT:-9736}:9735"
      - "${BOB_LND_REST_PORT:-8081}:8080"
    volumes:
      - litd-bob-data:/root/.lnd
      - litd-bob-lit-data:/root/.lit
      - ${BOB_LITD_CONF_PATH:-./litd-regtest.conf.template}:/tmp/lit.conf:ro
    networks:
      - litd-regtest

volumes:
  litd-bitcoind-data:
  litd-data:
  litd-lit-data:
  litd-bob-data:
  litd-bob-lit-data:

networks:
  litd-regtest:
    driver: bridge