#!/usr/bin/env bash
# Starts the load generator against both replica ports for a fixed duration and
# returns immediately - it runs in the background for the rest of run-all.sh.
# Usage: run-load-generator.sh <durationSeconds>
set -euo pipefail
DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$DIR/env.sh"

DURATION="${1:-170}"
rm -f "$EC_PHASE_FILE" "$EC_LOAD_SUMMARY"
set_phase "00-baseline-soak"

nohup java -cp "$MODULE_DIR/target/classes:$(cat "$CP_FILE")" \
    com.ankurm.expandcontract.loadgen.LoadGenerator \
    --ports="$PORT_A,$PORT_B" \
    --durationSeconds="$DURATION" \
    --phaseFile="$EC_PHASE_FILE" \
    --outFile="$EC_LOAD_SUMMARY" \
    --threads=8 \
    > "$EC_LOG_DIR/load-generator.log" 2>&1 < /dev/null &
echo $! > "$EC_PID_DIR/loadgen.pid"
echo "load generator started (pid $(cat "$EC_PID_DIR/loadgen.pid")), running for ${DURATION}s"