#!/bin/bash
set -euo pipefail
HOSTNAME_VALUE=$(hostname)
GPU_ARCH="mi30x"   # default
OPTIONAL_DEPS="${1:-}"

# Build python extras
EXTRAS="dev_hip"
if [ -n "$OPTIONAL_DEPS" ]; then
    EXTRAS="dev_hip,${OPTIONAL_DEPS}"
fi
echo "Installing python extras: [${EXTRAS}]"

# Host names look like: linux-mi35x-gpu-1-xxxxx-runner-zzzzz
if [[ "${HOSTNAME_VALUE}" =~ ^linux-(mi[0-9]+[a-z]*)-gpu-[0-9]+ ]]; then
  GPU_ARCH="${BASH_REMATCH[1]}"
  echo "Detected GPU architecture from hostname: ${GPU_ARCH}"
else
  echo "Warning: could not parse GPU architecture from '${HOSTNAME_VALUE}', defaulting to ${GPU_ARCH}"
fi

# Install the required dependencies in CI.
# Fix permissions on pip cache, ignore errors from concurrent access or missing temp files
docker exec ci_sglang chown -R root:root /sgl-data/pip-cache 2>/dev/null || true
docker exec ci_sglang pip install --cache-dir=/sgl-data/pip-cache --upgrade pip
docker exec ci_sglang pip uninstall sgl-kernel -y || true
docker exec ci_sglang pip uninstall sglang -y || true
# Clear Python cache to ensure latest code is used
docker exec ci_sglang find /opt/venv -name "*.pyc" -delete || true
docker exec ci_sglang find /opt/venv -name "__pycache__" -type d -exec rm -rf {} + || true
# Also clear cache in sglang-checkout
docker exec ci_sglang find /sglang-checkout -name "*.pyc" -delete || true
docker exec ci_sglang find /sglang-checkout -name "__pycache__" -type d -exec rm -rf {} + || true
docker exec -w /sglang-checkout/sgl-kernel ci_sglang bash -c "rm -f pyproject.toml && mv pyproject_rocm.toml pyproject.toml && python3 setup_rocm.py install"

# Helper function to install with retries and fallback PyPI mirror
install_with_retry() {
  local max_attempts=3
  local cmd="$@"

  for attempt in $(seq 1 $max_attempts); do
    echo "Attempt $attempt/$max_attempts: $cmd"
    if eval "$cmd"; then
      echo "Success!"
      return 0
    fi

    if [ $attempt -lt $max_attempts ]; then
      echo "Failed, retrying in 5 seconds..."
      sleep 5
      # Try with alternative PyPI index on retry
      if [[ "$cmd" =~ "pip install" ]] && [ $attempt -eq 2 ]; then
        cmd="$cmd --index-url https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com"
        echo "Using fallback PyPI mirror: $cmd"
      fi
    fi
  done

  echo "Failed after $max_attempts attempts"
  return 1
}

case "${GPU_ARCH}" in
  mi35x)
    echo "Runner uses ${GPU_ARCH}; will fetch mi35x image."
    docker exec ci_sglang rm -rf python/pyproject.toml && mv python/pyproject_other.toml python/pyproject.toml
    install_with_retry docker exec ci_sglang pip install --cache-dir=/sgl-data/pip-cache -e "python[${EXTRAS}]" --no-deps # TODO: only for mi35x
    # For lmms_evals evaluating MMMU
    docker exec -w / ci_sglang git clone --branch v0.4.1 --depth 1 https://github.com/EvolvingLMMs-Lab/lmms-eval.git
    install_with_retry docker exec -w /lmms-eval ci_sglang pip install --cache-dir=/sgl-data/pip-cache -e . --no-deps
    ;;
  mi30x|mi300|mi325)
    echo "Runner uses ${GPU_ARCH}; will fetch mi30x image."
    docker exec ci_sglang rm -rf python/pyproject.toml && mv python/pyproject_other.toml python/pyproject.toml
    install_with_retry docker exec ci_sglang pip install --cache-dir=/sgl-data/pip-cache -e "python[${EXTRAS}]"
    # For lmms_evals evaluating MMMU
    docker exec -w / ci_sglang git clone --branch v0.4.1 --depth 1 https://github.com/EvolvingLMMs-Lab/lmms-eval.git
    install_with_retry docker exec -w /lmms-eval ci_sglang pip install --cache-dir=/sgl-data/pip-cache -e .
    ;;
  *)
    echo "Runner architecture '${GPU_ARCH}' unrecognised;" >&2
    ;;
esac

docker exec -w / ci_sglang git clone https://github.com/merrymercy/human-eval.git
install_with_retry docker exec -w /human-eval ci_sglang pip install --cache-dir=/sgl-data/pip-cache -e .

docker exec -w / ci_sglang mkdir -p /dummy-grok
mkdir -p dummy-grok && wget https://sharkpublic.blob.core.windows.net/sharkpublic/sglang/dummy_grok.json -O dummy-grok/config.json
docker cp ./dummy-grok ci_sglang:/

docker exec ci_sglang pip install --cache-dir=/sgl-data/pip-cache huggingface_hub[hf_xet]
docker exec ci_sglang pip install --cache-dir=/sgl-data/pip-cache pytest

# Clear pre-built AITER kernels from Docker image to avoid segfaults
# The Docker image may contain pre-compiled kernels incompatible with the current environment
echo "Clearing pre-built AITER kernels from Docker image..."
docker exec ci_sglang find /sgl-workspace/aiter/aiter/jit -name "*.so" -delete 2>/dev/null || true
docker exec ci_sglang ls -la /sgl-workspace/aiter/aiter/jit/ 2>/dev/null || echo "jit dir empty or not found"

# Pre-build AITER kernels to avoid timeout during tests
echo "Warming up AITER JIT kernels..."
docker exec -e SGLANG_USE_AITER=1 ci_sglang python3 /sglang-checkout/scripts/ci/amd_ci_warmup_aiter.py || echo "AITER warmup completed (some kernels may not be available)"