cli

#!/usr/bin/env bash
#
# Helper script to launch Brokk CLI from the most-recent build artifact.
# Scans app/build/libs for the latest brokk-*.jar and runs the CLI.

set -euo pipefail

# Determine the directory this script lives in, resolving any symlinks.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
LIB_DIR="$SCRIPT_DIR/app/build/libs"

# Ensure at least one brokk-*.jar exists
if ! ls "$LIB_DIR"/brokk-*.jar &>/dev/null; then
  echo "Error: No brokk-*.jar found in $LIB_DIR" >&2
  exit 1
fi

# Use the most recently modified brokk-*.jar as the classpath
CLASSPATH="$(ls -t "$LIB_DIR"/brokk-*.jar | head -n 1)"

# Determine which BrokkCli class exists in the JAR
if jar -tf "$CLASSPATH" | grep -q '^ai/brokk/cli/BrokkCli\.class$'; then
  CLASS_NAME="ai.brokk.cli.BrokkCli"
elif jar -tf "$CLASSPATH" | grep -q '^io/github/jbellis/brokk/cli/BrokkCli\.class$'; then
  CLASS_NAME="io.github.jbellis.brokk.cli.BrokkCli"
else
  echo "Error: BrokkCli class not found in $CLASSPATH" >&2
  exit 1
fi

# Launch BrokkCli.
# We use PGC because it's more space-efficient than the default G1,
# and in cli mode we're not latency sensitive.
# Remote debugger is ENABLED by default. Disable via --no-debug or BROKK_DEBUG=false.
# Supported CLI flags:
#   --debug[=PORT]         enable JDWP on PORT (default 5005)
#   --debug-port=PORT      same as --debug=PORT
#   --debug-suspend        wait for debugger to attach before starting
#   --no-debug             disable JDWP (overrides env/default)
# Env vars:
#   BROKK_DEBUG=true|false|PORT  enable/disable debug; PORT overrides port (true/1/yes/on; false/0/no/off)
#   BROKK_DEBUG_PORT=PORT        port to listen on (default 5005)
#   BROKK_DEBUG_SUSPEND=y|n      whether to suspend on start (default n)
declare -a JVM_ARGS=()
declare -a APP_ARGS=()
DEBUG_ENABLED=false
DEBUG_PORT="${BROKK_DEBUG_PORT:-5005}"
DEBUG_SUSPEND="${BROKK_DEBUG_SUSPEND:-n}"
# Environment override for debug behavior
if [[ -n "${BROKK_DEBUG:-}" ]]; then
  brokk_debug_lc="$(printf '%s' "${BROKK_DEBUG}" | tr '[:upper:]' '[:lower:]')"
  case "${brokk_debug_lc}" in
    false|0|no|off)
      DEBUG_ENABLED=false
      ;;
    true|1|yes|on)
      DEBUG_ENABLED=true
      ;;
    *)
      if [[ "${BROKK_DEBUG}" =~ ^[0-9]+$ ]]; then
        DEBUG_ENABLED=true
        DEBUG_PORT="${BROKK_DEBUG}"
      else
        # Unknown value; keep default enabled
        DEBUG_ENABLED=true
      fi
      ;;
  esac
fi
for arg in "$@"; do
  case "$arg" in
    --debug)
      DEBUG_ENABLED=true
      ;;
    --debug=*)
      DEBUG_ENABLED=true
      DEBUG_PORT="${arg#--debug=}"
      ;;
    --debug-port=*)
      DEBUG_ENABLED=true
      DEBUG_PORT="${arg#--debug-port=}"
      ;;
    --debug-suspend)
      DEBUG_ENABLED=true
      DEBUG_SUSPEND="y"
      ;;
    --no-debug)
      DEBUG_ENABLED=false
      ;;
    -X*|-D*)
      JVM_ARGS+=("$arg")
      ;;
    *)
      APP_ARGS+=("$arg")
      ;;
  esac
done

# Build the final JVM argument list, adding a default -Xmx1G unless the caller
# already supplied an explicit -Xmx option.
declare -a EFFECTIVE_JVM_ARGS=("-ea" "-XX:+UseParallelGC")

# Always use test logging configuration
EFFECTIVE_JVM_ARGS+=("-Dlog4j.configurationFile=$SCRIPT_DIR/app/src/test/resources/log4j2-test.xml")

xmx_specified=false
for arg in "${JVM_ARGS[@]-}"; do
  if [[ $arg == -Xmx* ]]; then
    xmx_specified=true
    break
  fi
done
if ! $xmx_specified; then
  EFFECTIVE_JVM_ARGS+=("-Xmx1G")
fi
# Append any user-supplied JVM args (which may include their own -Xmx)
EFFECTIVE_JVM_ARGS+=(${JVM_ARGS[@]+"${JVM_ARGS[@]}"})

# Add JDWP agent if debugging is enabled and not already specified by the user
jdwp_specified=false
for arg in "${JVM_ARGS[@]-}"; do
  if [[ $arg == -agentlib:jdwp* || $arg == -Xrunjdwp* ]]; then
    jdwp_specified=true
    break
  fi
done
if $DEBUG_ENABLED && ! $jdwp_specified; then
  EFFECTIVE_JVM_ARGS+=("-agentlib:jdwp=transport=dt_socket,server=y,suspend=$DEBUG_SUSPEND,address=*:$DEBUG_PORT")
  echo "Debugging enabled on port $DEBUG_PORT (suspend=$DEBUG_SUSPEND)" >&2
fi

# Launch BrokkCli with the determined class name
exec java \
     "${EFFECTIVE_JVM_ARGS[@]}" \
     -cp "$CLASSPATH" \
     "$CLASS_NAME" \
     "${APP_ARGS[@]-}"