#!/bin/bash
# Test script for Helm chart validation
# Usage: ./test-chart.sh

set -e

CHART_DIR="datacenter-docs"
RELEASE_NAME="test-datacenter-docs"

echo "=========================================="
echo "Helm Chart Testing Script"
echo "=========================================="
echo ""

# Check if helm is installed
if ! command -v helm &> /dev/null; then
    echo "ERROR: helm is not installed. Please install Helm first."
    exit 1
fi

echo "✓ Helm version: $(helm version --short)"
echo ""

# Lint the chart
echo "=========================================="
echo "Step 1: Linting Chart"
echo "=========================================="
helm lint ${CHART_DIR}
echo "✓ Lint passed"
echo ""

# Template rendering with default values
echo "=========================================="
echo "Step 2: Template Rendering (default values)"
echo "=========================================="
helm template ${RELEASE_NAME} ${CHART_DIR} > /tmp/rendered-default.yaml
echo "✓ Template rendering successful"
echo "  Output: /tmp/rendered-default.yaml"
echo ""

# Template rendering with development values
echo "=========================================="
echo "Step 3: Template Rendering (development values)"
echo "=========================================="
helm template ${RELEASE_NAME} ${CHART_DIR} -f ${CHART_DIR}/values-development.yaml > /tmp/rendered-dev.yaml
echo "✓ Template rendering successful"
echo "  Output: /tmp/rendered-dev.yaml"
echo ""

# Template rendering with production values
echo "=========================================="
echo "Step 4: Template Rendering (production values)"
echo "=========================================="
helm template ${RELEASE_NAME} ${CHART_DIR} -f ${CHART_DIR}/values-production.yaml > /tmp/rendered-prod.yaml
echo "✓ Template rendering successful"
echo "  Output: /tmp/rendered-prod.yaml"
echo ""

# Dry run installation
echo "=========================================="
echo "Step 5: Dry Run Installation"
echo "=========================================="
helm install ${RELEASE_NAME} ${CHART_DIR} --dry-run --debug > /tmp/dry-run.log 2>&1
echo "✓ Dry run successful"
echo "  Output: /tmp/dry-run.log"
echo ""

# Test with disabled components
echo "=========================================="
echo "Step 6: Template with Disabled Components"
echo "=========================================="
helm template ${RELEASE_NAME} ${CHART_DIR} \
  --set mongodb.enabled=false \
  --set redis.enabled=false \
  --set api.enabled=false \
  --set frontend.enabled=false \
  > /tmp/rendered-minimal.yaml
echo "✓ Minimal template rendering successful"
echo "  Output: /tmp/rendered-minimal.yaml"
echo ""

# Test with all components enabled
echo "=========================================="
echo "Step 7: Template with All Components"
echo "=========================================="
helm template ${RELEASE_NAME} ${CHART_DIR} \
  --set chat.enabled=true \
  --set worker.enabled=true \
  > /tmp/rendered-full.yaml
echo "✓ Full template rendering successful"
echo "  Output: /tmp/rendered-full.yaml"
echo ""

# Validate Kubernetes manifests (if kubectl is available)
if command -v kubectl &> /dev/null; then
    echo "=========================================="
    echo "Step 8: Kubernetes Manifest Validation"
    echo "=========================================="

    if kubectl version --client &> /dev/null; then
        kubectl apply --dry-run=client -f /tmp/rendered-default.yaml > /dev/null 2>&1
        echo "✓ Kubernetes manifest validation passed"
    else
        echo "⚠ kubectl not connected to cluster, skipping validation"
    fi
    echo ""
else
    echo "⚠ kubectl not found, skipping Kubernetes validation"
    echo ""
fi

# Package the chart
echo "=========================================="
echo "Step 9: Packaging Chart"
echo "=========================================="
helm package ${CHART_DIR} -d /tmp/
echo "✓ Chart packaged successfully"
echo "  Output: /tmp/datacenter-docs-*.tgz"
echo ""

# Summary
echo "=========================================="
echo "All Tests Passed! ✓"
echo "=========================================="
echo ""
echo "Generated files:"
echo "  - /tmp/rendered-default.yaml (default values)"
echo "  - /tmp/rendered-dev.yaml (development values)"
echo "  - /tmp/rendered-prod.yaml (production values)"
echo "  - /tmp/rendered-minimal.yaml (minimal components)"
echo "  - /tmp/rendered-full.yaml (all components)"
echo "  - /tmp/dry-run.log (dry run output)"
echo "  - /tmp/datacenter-docs-*.tgz (packaged chart)"
echo ""
echo "To install the chart locally:"
echo "  helm install my-release ${CHART_DIR}"
echo ""
echo "To install with development values:"
echo "  helm install dev ${CHART_DIR} -f ${CHART_DIR}/values-development.yaml"
echo ""
echo "To install with production values (customize first!):"
echo "  helm install prod ${CHART_DIR} -f ${CHART_DIR}/values-production.yaml"
echo ""