#!/usr/bin/env bash
# Generate a Tank Royale bot directory that boots the DrussGT bridge.
#
#   tools/robocode_shim/make_botdir.sh [TARGET_DIR]
#
# The generated directory contains only text files (<dir>.json + <dir>.sh); the
# third-party jars stay outside the repo and are referenced by absolute path.
set -euo pipefail

HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
TARGET="${1:-/tmp/tr_bots/DrussGT}"
NAME="$(basename "$TARGET")"

ROBOCODE_JAR="${ROBOCODE_JAR:-/tmp/robocode/install/libs/robocode.jar}"
TR_BOT_API_JAR="${TR_BOT_API_JAR:-$HOME/Downloads/sample-bots-java-1.0.2/lib/robocode-tankroyale-bot-api-1.0.2.jar}"
OUT="${OUT:-$HERE/out}"

mkdir -p "$TARGET"
cat > "$TARGET/$NAME.json" <<JSON
{
  "name": "DrussGT",
  "version": "3.1.4159",
  "authors": ["Jacob"],
  "description": "Real classic DrussGT running on Tank Royale via the robocode_shim bridge",
  "homepage": "",
  "countryCodes": ["se"],
  "gameTypes": ["classic", "1v1"],
  "platform": "JVM",
  "programmingLang": "Java 8"
}
JSON

# The Tank Royale bot API reads bot identity from BOT_* environment variables.
# When the TR booter launches this directory it supplies them (derived from the
# .json above), but running this script BY HAND does not - and the API then
# rejects the handshake with "Required bot property 'name' is missing".
# Exporting them here makes the script work standalone as well.
cat > "$TARGET/$NAME.sh" <<SH
#!/bin/sh
cd "\$(dirname "\$0")"

# Bot identity - keep in sync with $NAME.json
export BOT_NAME="DrussGT"
export BOT_VERSION="3.1.4159"
export BOT_AUTHORS="Jacob"
export BOT_DESCRIPTION="Real classic DrussGT running on Tank Royale via the robocode_shim bridge"
export BOT_HOMEPAGE=""
export BOT_COUNTRY_CODES="se"
export BOT_GAME_TYPES="classic,1v1"
export BOT_PLATFORM="JVM"
export BOT_PROG_LANG="Java 8"

exec java -cp "$OUT:$ROBOCODE_JAR:$TR_BOT_API_JAR" robocode_shim.DrussGTBridge
SH
chmod +x "$TARGET/$NAME.sh"

echo "bot dir ready: $TARGET"
echo "  $TARGET/$NAME.json"
echo "  $TARGET/$NAME.sh"
echo "  (classpath: $OUT:$ROBOCODE_JAR:$TR_BOT_API_JAR)"