#!/bin/bash
# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

set -e
trap 'echo Cleaning up...; kill 0' EXIT

SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
source "$SCRIPT_DIR/../../../common/gpu_utils.sh"   # build_trtllm_override_args_with_mem
source "$SCRIPT_DIR/../../../common/launch_utils.sh" # print_launch_banner, wait_any_exit

# Environment variables with defaults
export DYNAMO_HOME=${DYNAMO_HOME:-"/workspace"}
export MODEL_PATH=${MODEL_PATH:-"Qwen/Qwen3-0.6B"}
export SERVED_MODEL_NAME=${SERVED_MODEL_NAME:-"Qwen/Qwen3-0.6B"}
export AGG_ENGINE_ARGS=${AGG_ENGINE_ARGS:-"$DYNAMO_HOME/examples/backends/trtllm/engine_configs/qwen3/agg.yaml"}
export MODALITY=${MODALITY:-"text"}
# If you want to use multimodal, set MODALITY to "multimodal"
#export MODALITY=${MODALITY:-"multimodal"}


ENABLE_OTEL=false
USE_UNIFIED=false
EXTRA_ARGS=()
while [[ $# -gt 0 ]]; do
    case $1 in
        --enable-otel)
            ENABLE_OTEL=true
            shift
            ;;
        --unified)
            USE_UNIFIED=true
            shift
            ;;
        -h|--help)
            echo "Usage: $0 [OPTIONS]"
            echo "Options:"
            echo "  --enable-otel        Enable OpenTelemetry tracing"
            echo "  --unified            Use unified_main entry point (Worker)"
            echo "  -h, --help           Show this help message"
            echo ""
            echo "Any additional options are passed through to dynamo.trtllm."
            exit 0
            ;;
        *)
            EXTRA_ARGS+=("$1")
            shift
            ;;
    esac
done

TRTLLM_OVERRIDE_ARGS=()
if [ "$ENABLE_OTEL" = true ]; then
    export DYN_LOGGING_JSONL=true
    export OTEL_EXPORT_ENABLED=1
    export OTEL_EXPORTER_OTLP_TRACES_ENDPOINT=${OTEL_EXPORTER_OTLP_TRACES_ENDPOINT:-http://localhost:4317}
    OTEL_JSON="{\"return_perf_metrics\": true, \"otlp_traces_endpoint\": \"${OTEL_EXPORTER_OTLP_TRACES_ENDPOINT}\"}"
    # Merge GPU mem config with OTEL config
    OVERRIDE_JSON=$(build_trtllm_override_args_with_mem --merge-with-json "$OTEL_JSON")
else
    # Just GPU mem config (if any)
    OVERRIDE_JSON=$(build_trtllm_override_args_with_mem)
fi

# Add --override-engine-args if we have JSON
if [[ -n "$OVERRIDE_JSON" ]]; then
    TRTLLM_OVERRIDE_ARGS=(--override-engine-args "$OVERRIDE_JSON")
fi

HTTP_PORT="${DYN_HTTP_PORT:-8000}"
print_launch_banner "Launching Aggregated Serving" "$MODEL_PATH" "$HTTP_PORT"

# run frontend
# dynamo.frontend accepts either --http-port flag or DYN_HTTP_PORT env var (defaults to 8000)
OTEL_SERVICE_NAME=dynamo-frontend \
python3 -m dynamo.frontend &

# run worker
# Additional command line args can be passed
WORKER_MODULE="dynamo.trtllm"
if [ "$USE_UNIFIED" = true ]; then
    WORKER_MODULE="dynamo.trtllm.unified_main"
fi
OTEL_SERVICE_NAME=dynamo-worker \
python3 -m "$WORKER_MODULE" \
  --model-path "$MODEL_PATH" \
  --served-model-name "$SERVED_MODEL_NAME" \
  --modality "$MODALITY" \
  --extra-engine-args "$AGG_ENGINE_ARGS" \
  "${TRTLLM_OVERRIDE_ARGS[@]}" \
  "${EXTRA_ARGS[@]}" &

# Exit on first worker failure; kill 0 in the EXIT trap tears down the rest
wait_any_exit