#!/usr/bin/env bash

set -euo pipefail

# Colors for output
GREEN='\033[0;32m'
BLUE='\033[0;34m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
NC='\033[0m'

log_info() {
    echo -e "${BLUE}[INFO]${NC} $1"
}

log_success() {
    echo -e "${GREEN}[SUCCESS]${NC} $1"
}

log_warning() {
    echo -e "${YELLOW}[WARNING]${NC} $1"
}

log_error() {
    echo -e "${RED}[ERROR]${NC} $1"
}

echo "=========================================="
echo "Storage Diagnostics"
echo "=========================================="
echo ""

# Check storage classes
log_info "Checking available storage classes..."
kubectl get storageclass
echo ""

# Check PVCs
log_info "Checking PersistentVolumeClaims in gitlab namespace..."
kubectl get pvc -n gitlab
echo ""

# Check PVC details
log_info "Detailed PVC status..."
kubectl describe pvc -n gitlab
echo ""

# Check pods
log_info "Checking pods in gitlab namespace..."
kubectl get pods -n gitlab
echo ""

# Check pod events
log_info "Checking events in gitlab namespace..."
kubectl get events -n gitlab --sort-by='.lastTimestamp' | tail -20
echo ""

# Summary and recommendations
echo "=========================================="
log_info "Summary and Recommendations"
echo "=========================================="

# Check if storage class exists
if kubectl get storageclass 2>&1 | grep -q "No resources found"; then
    log_error "No storage class found!"
    echo ""
    log_info "Talos Linux does not include a default storage provisioner."
    log_info "You need to install one of the following:"
    echo ""
    echo "  1. Local Path Provisioner (simple, single-node)"
    echo "     - Best for testing/development"
    echo "     - Uses local node storage"
    echo ""
    echo "  2. OpenEBS (distributed, multi-node)"
    echo "     - Production-ready"
    echo "     - Supports replication"
    echo ""
    echo "  3. Rook-Ceph (distributed, enterprise)"
    echo "     - Full-featured storage solution"
    echo "     - More complex setup"
    echo ""
    log_info "I recommend starting with Local Path Provisioner for simplicity."
else
    log_success "Storage class found"
fi

echo ""