#!/bin/bash
# Phase 6.6: Create kmsvc (Kafka Message Service) Topics
# Topics:
#   - poimen-memory-dlq (extraction + webhook + agent failures)
#   - poimen-memory-metric-dlq (metrics persistence failures)
#
# Prerequisites:
#   1. kubectl access to cluster (SQS namespace)
#   2. management-service running and accessible
#
# Usage:
#   ./create-kmsvc-topics.sh              (auto port-forward)
#   ./create-kmsvc-topics.sh manual       (assumes port-forward exists)

set -e

NAMESPACE=${NAMESPACE:-sqs}
SERVICE=${SERVICE:-management-service}
PORT=${PORT:-8080}
MANUAL_PORTFORWARD=${1:-auto}

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

echo -e "${YELLOW}========================================${NC}"
echo -e "${YELLOW}Creating kmsvc Topics for Poimen Memory${NC}"
echo -e "${YELLOW}========================================${NC}"

# Setup port-forward if needed
if [ "$MANUAL_PORTFORWARD" != "manual" ]; then
    echo -e "${YELLOW}Setting up port-forward to $SERVICE...${NC}"
    
    # Kill existing port-forward if running
    pkill -f "kubectl.*port-forward.*$SERVICE" || true
    sleep 1
    
    # Start port-forward in background
    kubectl -n $NAMESPACE port-forward svc/$SERVICE $PORT:8080 &
    PORTFORWARD_PID=$!
    trap "kill $PORTFORWARD_PID" EXIT
    
    sleep 3
    echo -e "${GREEN}Port-forward started (PID: $PORTFORWARD_PID)${NC}"
fi

ENDPOINT="http://localhost:$PORT/v1/queues"

# Helper function to create topic
create_topic() {
    local topic_name=$1
    local description=$2
    
    echo ""
    echo -e "${YELLOW}Creating topic: ${topic_name}${NC}"
    echo "Description: ${description}"
    
    # Try to create (SQS-style API)
    response=$(curl -s -X POST "$ENDPOINT" \
        -H "Content-Type: application/json" \
        -d "{
            \"name\": \"${topic_name}\",
            \"fifoQueue\": false,
            \"visibilityTimeoutSeconds\": 300,
            \"messageRetentionPeriodSeconds\": 1209600
        }")
    
    if echo "$response" | grep -q '"name"'; then
        echo -e "${GREEN}✓ Created: ${topic_name}${NC}"
        echo "Response: $response"
    elif echo "$response" | grep -q 'already exists'; then
        echo -e "${YELLOW}⚠ Already exists: ${topic_name}${NC}"
    else
        echo -e "${RED}✗ Failed to create: ${topic_name}${NC}"
        echo "Response: $response"
        return 1
    fi
}

# Create topics
create_topic "poimen-memory-dlq" "DLQ for extraction, webhook, and agent failures"
create_topic "poimen-memory-metric-dlq" "DLQ for metrics persistence failures"

# List all queues
echo ""
echo -e "${YELLOW}Listing all queues:${NC}"
curl -s "$ENDPOINT" | jq '.' || curl -s "$ENDPOINT"

echo ""
echo -e "${GREEN}========================================${NC}"
echo -e "${GREEN}Topic creation complete!${NC}"
echo -e "${GREEN}========================================${NC}"