#!/bin/bash
# Multi-PC Load Test Script - 300 Students Simultaneously
# 
# This script provides commands for 3 PCs to test backend capacity
# Each PC runs 100 students simultaneously
# Total: 300 concurrent students hitting the backend
#
# Usage:
#   PC 1: Run the command for PC 1
#   PC 2: Run the command for PC 2  
#   PC 3: Run the command for PC 3
#   All at the same time to test 300 concurrent users

echo "=================================================================================="
echo "🚀 MULTI-PC LOAD TEST - 300 STUDENTS SIMULTANEOUSLY"
echo "=================================================================================="
echo ""
echo "📋 INSTRUCTIONS:"
echo "   1. Copy the command for your PC (PC 1, PC 2, or PC 3)"
echo "   2. Run it on your respective machine"
echo "   3. Start all 3 commands at the SAME TIME (coordinate via chat/phone)"
echo "   4. This will test backend capacity for 300 concurrent users"
echo ""
echo "=================================================================================="
echo ""

# Configuration
WORKERS_PER_PC=30  # 30 concurrent browsers per PC (adjust based on PC specs)
METRICS_INTERVAL=10

echo "📊 CONFIGURATION:"
echo "   Workers per PC: $WORKERS_PER_PC"
echo "   Total concurrent browsers: $((WORKERS_PER_PC * 3))"
echo "   Total students: 300 (100 per PC)"
echo "   Metrics interval: Every $METRICS_INTERVAL students"
echo ""
echo "=================================================================================="
echo ""

echo "🖥️  PC 1 COMMAND (First CSV - 100 students):"
echo "----------------------------------------------------------------------"
echo "cd /home/tech4biz/work/CP_Front_Automation_Test && source venv/bin/activate && \\"
echo "python3 tests/load_tests/test_generic_load_assessments.py \\"
echo "    --csv students_with_passwords_2025-12-15T10-49-08_01.csv \\"
echo "    --start 0 --end 100 \\"
echo "    --workers $WORKERS_PER_PC \\"
echo "    --headless \\"
echo "    --metrics-interval $METRICS_INTERVAL"
echo ""
echo "=================================================================================="
echo ""

echo "🖥️  PC 2 COMMAND (Second CSV - 100 students):"
echo "----------------------------------------------------------------------"
echo "cd /home/tech4biz/work/CP_Front_Automation_Test && source venv/bin/activate && \\"
echo "python3 tests/load_tests/test_generic_load_assessments.py \\"
echo "    --csv students_with_passwords_2025-12-15T10-59-02_03.csv \\"
echo "    --start 0 --end 100 \\"
echo "    --workers $WORKERS_PER_PC \\"
echo "    --headless \\"
echo "    --metrics-interval $METRICS_INTERVAL"
echo ""
echo "=================================================================================="
echo ""

echo "🖥️  PC 3 COMMAND (Third CSV - 100 students):"
echo "----------------------------------------------------------------------"
echo "cd /home/tech4biz/work/CP_Front_Automation_Test && source venv/bin/activate && \\"
echo "python3 tests/load_tests/test_generic_load_assessments.py \\"
echo "    --csv students_with_passwords_2025-12-15T11-06-37_05.csv \\"
echo "    --start 0 --end 100 \\"
echo "    --workers $WORKERS_PER_PC \\"
echo "    --headless \\"
echo "    --metrics-interval $METRICS_INTERVAL"
echo ""
echo "=================================================================================="
echo ""

echo "💡 TIPS:"
echo "   - If PC crashes, reduce --workers to 20 or 15"
echo "   - Monitor system resources: htop, free -h"
echo "   - Results saved in: reports/load_tests/"
echo "   - Check backend logs for API performance"
echo ""
echo "=================================================================================="