#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR=/workspace
GIT_BRANCH="${GIT_BRANCH:-}"

# Checkout branch if specified
if [[ -n "$GIT_BRANCH" ]]; then
  cd "$ROOT_DIR"
  git config --global --add safe.directory "$ROOT_DIR" 2>/dev/null || true
  CURRENT=$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo "unknown")

  if [[ "$CURRENT" != "$GIT_BRANCH" ]]; then
    echo "[txn-bot-entrypoint] Switching to branch: $GIT_BRANCH"
    # Try local branch first, then remote
    if git rev-parse --verify "$GIT_BRANCH" >/dev/null 2>&1; then
      git checkout "$GIT_BRANCH" 2>/dev/null || echo "[txn-bot-entrypoint] WARNING: Could not checkout $GIT_BRANCH"
    else
      git fetch origin "$GIT_BRANCH" 2>/dev/null || true
      git checkout "$GIT_BRANCH" 2>/dev/null || echo "[txn-bot-entrypoint] WARNING: Could not checkout $GIT_BRANCH"
    fi
  fi
fi

TXNBOT_ENV_FILE=$ROOT_DIR/tmp/podman/txnBot.env
BOT_DIR=$ROOT_DIR/services/txnBot
REQUIRED_DIST=$ROOT_DIR/kraiken-lib/dist/index.js

while [[ ! -f "$TXNBOT_ENV_FILE" ]]; do
  echo "[txn-bot-entrypoint] waiting for env file"
  sleep 2
done

if [[ ! -f "$REQUIRED_DIST" ]]; then
  echo "[txn-bot-entrypoint] ERROR: Run ./scripts/build-kraiken-lib.sh before starting containers" >&2
  exit 1
fi

cd "$BOT_DIR"
echo "[txn-bot-entrypoint] Installing txn-bot dependencies..."
npm install --no-save --loglevel error 2>&1 || {
  echo "[txn-bot-entrypoint] npm install failed, trying with --force"
  npm install --force --no-save --loglevel error
}

echo "[txn-bot-entrypoint] Building TypeScript..."
npm run build

export TXN_BOT_ENV_FILE="$TXNBOT_ENV_FILE"
exec npm run start