#!/bin/bash

# Unit test for Mailhog component
# TDD flow: test first to ensure failure prior to implementation

set -e

# Load environment settings
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
ENV_FILE="${SCRIPT_DIR}/TSYSDevStack-SupportStack-Demo-Settings"

if [ ! -f "$ENV_FILE" ]; then
    echo "Error: Environment settings file not found at $ENV_FILE"
    exit 1
fi

source "$ENV_FILE"

echo "Testing Mailhog availability and functionality..."

# Ensure Mailhog container is running
if ! docker ps | grep -q "$MAILHOG_NAME"; then
    echo "❌ Mailhog container is not running"
    exit 1
fi

# Allow service time to respond
sleep 3

# Verify Mailhog UI is reachable
if curl -f -s "http://${BIND_ADDRESS}:${MAILHOG_UI_PORT}/" > /dev/null 2>&1; then
    echo "✅ Mailhog UI is accessible at http://${BIND_ADDRESS}:${MAILHOG_UI_PORT}"
else
    echo "❌ Mailhog UI is not accessible at http://${BIND_ADDRESS}:${MAILHOG_UI_PORT}"
    exit 1
fi

# Optional SMTP port check (basic TCP connect)
if command -v nc >/dev/null 2>&1; then
    if timeout 3 nc -z "${BIND_ADDRESS}" "${MAILHOG_SMTP_PORT}" >/dev/null 2>&1; then
        echo "✅ Mailhog SMTP port ${MAILHOG_SMTP_PORT} is reachable"
    else
        echo "⚠️ Mailhog SMTP port ${MAILHOG_SMTP_PORT} not reachable (informational)"
    fi
else
    echo "⚠️ nc command not available; skipping SMTP connectivity check"
fi

echo "✅ Mailhog component test passed"
exit 0