#!/bin/bash
# create-queue.sh
# Usage: DOMAIN=andreasknuth.de ./create-queue.sh

set -e

AWS_REGION="us-east-2"

# Domain aus Environment Variable
if [ -z "$DOMAIN" ]; then
    echo "Error: DOMAIN environment variable not set"
    echo "Usage: DOMAIN=andreasknuth.de $0"
    exit 1
fi

QUEUE_NAME="${DOMAIN//./-}-queue"
DLQ_NAME="${QUEUE_NAME}-dlq"

echo "========================================"
echo "Creating SQS Queue for Email Delivery"
echo "========================================"
echo ""
echo "📧 Domain: $DOMAIN"
echo "   Region: $AWS_REGION"
echo ""

# Dead Letter Queue erstellen
echo "Creating DLQ: $DLQ_NAME"
DLQ_URL=$(aws sqs create-queue \
    --queue-name "${DLQ_NAME}" \
    --region "${AWS_REGION}" \
    --attributes '{
        "MessageRetentionPeriod": "1209600"
    }' \
    --query 'QueueUrl' \
    --output text 2>/dev/null || aws sqs get-queue-url --queue-name "${DLQ_NAME}" --region "${AWS_REGION}" --query 'QueueUrl' --output text)

echo "   ✓ DLQ URL: ${DLQ_URL}"

# DLQ ARN ermitteln
DLQ_ARN=$(aws sqs get-queue-attributes \
    --queue-url "${DLQ_URL}" \
    --region "${AWS_REGION}" \
    --attribute-names QueueArn \
    --query 'Attributes.QueueArn' \
    --output text)

echo "   ✓ DLQ ARN: ${DLQ_ARN}"
echo ""

# Haupt-Queue erstellen mit Redrive Policy
echo "Creating Main Queue: $QUEUE_NAME"
QUEUE_URL=$(aws sqs create-queue \
    --queue-name "${QUEUE_NAME}" \
    --region "${AWS_REGION}" \
    --attributes "{
        \"VisibilityTimeout\": \"300\",
        \"MessageRetentionPeriod\": \"86400\",
        \"ReceiveMessageWaitTimeSeconds\": \"20\",
        \"RedrivePolicy\": \"{\\\"deadLetterTargetArn\\\":\\\"${DLQ_ARN}\\\",\\\"maxReceiveCount\\\":\\\"3\\\"}\"
    }" \
    --query 'QueueUrl' \
    --output text 2>/dev/null || aws sqs get-queue-url --queue-name "${QUEUE_NAME}" --region "${AWS_REGION}" --query 'QueueUrl' --output text)

echo "   ✓ Queue URL: ${QUEUE_URL}"
echo ""
echo "========================================"
echo "✅ Queue created successfully!"
echo "========================================"
echo ""
echo "Configuration:"
echo "  Domain:     $DOMAIN"
echo "  Queue:      $QUEUE_NAME"
echo "  Queue URL:  $QUEUE_URL"
echo "  DLQ:        $DLQ_NAME"
echo "  Region:     $AWS_REGION"