#!/bin/bash
# filepath: check-postfixadmin-paths.sh

# Check PostfixAdmin URL configuration and path handling
# This script verifies the correct URL structure for PostfixAdmin 3.3.11

set -euo pipefail

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

info() {
    echo -e "${BLUE}INFO: $1${NC}"
}

success() {
    echo -e "${GREEN}SUCCESS: $1${NC}"
}

warning() {
    echo -e "${YELLOW}WARNING: $1${NC}"
}

error() {
    echo -e "${RED}ERROR: $1${NC}" >&2
}

echo -e "${BLUE}=== PostfixAdmin Path Configuration Analysis ===${NC}"
echo

info "Analyzing setup script configuration..."

WEBROOT="/var/www/postfixadmin"
NGINX_CONFIG="/etc/nginx/sites-available/postfixadmin.conf"

echo -e "${YELLOW}=== Directory Structure ===${NC}"
echo "Installation Directory: $WEBROOT"
echo "Public Directory: $WEBROOT/public"
echo "Setup Script: $WEBROOT/public/setup.php"
echo "Main Interface: $WEBROOT/public/index.php"
echo

echo -e "${YELLOW}=== URL Structure ===${NC}"
echo "With the current Nginx configuration pointing to $WEBROOT/public:"
echo
echo "✅ CORRECT URLs:"
echo "  • PostfixAdmin Setup: https://yourhostname/setup.php"
echo "  • PostfixAdmin Main: https://yourhostname/"
echo "  • PostfixAdmin Login: https://yourhostname/login.php"
echo
echo "❌ INCORRECT URLs (would result in 404):"
echo "  • https://yourhostname/postfixadmin/setup.php"
echo "  • https://yourhostname/postfixadmin/"
echo

echo -e "${YELLOW}=== How the Setup Script Handles PostfixAdmin ===${NC}"
echo
echo "1. **Installation**:"
echo "   - Downloads PostfixAdmin 3.3.11 to $WEBROOT"
echo "   - Creates templates_c directory for Smarty templates"
echo "   - Sets proper permissions (www-data:www-data)"
echo
echo "2. **Nginx Configuration**:"
echo "   - Document root points to: $WEBROOT/public"
echo "   - This is correct for PostfixAdmin 3.3.11+ structure"
echo "   - PHP files are processed through PHP-FPM"
echo
echo "3. **PostfixAdmin Configuration (config.local.php)**:"
echo "   - configured = false (allows setup wizard)"
echo "   - Proper database credentials"
echo "   - Encryption: dovecot:SHA512-CRYPT (compatible)"
echo "   - Templates directory: $WEBROOT/templates_c"
echo
echo "4. **Setup Process**:"
echo "   - User visits: https://hostname/setup.php"
echo "   - Setup wizard creates database tables"
echo "   - Admin user is created"
echo "   - Configuration is finalized"
echo

echo -e "${YELLOW}=== PostfixAdmin 3.3.11 Directory Structure ===${NC}"
echo "PostfixAdmin 3.3.11 uses this structure:"
echo "$WEBROOT/"
echo "├── public/              # Web-accessible files"
echo "│   ├── index.php        # Main interface"
echo "│   ├── setup.php        # Setup wizard"
echo "│   ├── login.php        # Login page"
echo "│   ├── css/             # Stylesheets"
echo "│   ├── js/              # JavaScript"
echo "│   └── images/          # Images"
echo "├── templates/           # Smarty templates"
echo "├── templates_c/         # Compiled templates (writable)"
echo "├── model/               # Application logic"
echo "├── languages/           # Translation files"
echo "└── config.local.php     # Configuration file"
echo

echo -e "${YELLOW}=== Security Benefits ===${NC}"
echo "By pointing Nginx to the public/ directory:"
echo "✅ Configuration files are not web-accessible"
echo "✅ Template files are not web-accessible"
echo "✅ Application logic is not web-accessible"
echo "✅ Only intended public files can be accessed"
echo

# Check if files exist
echo -e "${YELLOW}=== Current Installation Check ===${NC}"
if [[ -d "$WEBROOT" ]]; then
    success "PostfixAdmin directory exists: $WEBROOT"
    
    if [[ -d "$WEBROOT/public" ]]; then
        success "✅ Public directory exists: $WEBROOT/public"
        
        if [[ -f "$WEBROOT/public/setup.php" ]]; then
            success "✅ Setup script exists: $WEBROOT/public/setup.php"
        else
            warning "⚠️  Setup script not found: $WEBROOT/public/setup.php"
        fi
        
        if [[ -f "$WEBROOT/public/index.php" ]]; then
            success "✅ Main interface exists: $WEBROOT/public/index.php"
        else
            warning "⚠️  Main interface not found: $WEBROOT/public/index.php"
        fi
    else
        error "❌ Public directory missing: $WEBROOT/public"
        echo "   This indicates PostfixAdmin was not extracted correctly"
    fi
    
    if [[ -f "$WEBROOT/config.local.php" ]]; then
        success "✅ Configuration file exists: $WEBROOT/config.local.php"
    else
        warning "⚠️  Configuration file not found: $WEBROOT/config.local.php"
    fi
    
    if [[ -d "$WEBROOT/templates_c" ]]; then
        success "✅ Templates cache directory exists: $WEBROOT/templates_c"
        
        if [[ -w "$WEBROOT/templates_c" ]]; then
            success "✅ Templates cache directory is writable"
        else
            error "❌ Templates cache directory is not writable"
        fi
    else
        warning "⚠️  Templates cache directory missing: $WEBROOT/templates_c"
    fi
else
    warning "PostfixAdmin not yet installed: $WEBROOT"
fi

# Check Nginx configuration
echo
if [[ -f "$NGINX_CONFIG" ]]; then
    success "✅ Nginx configuration exists: $NGINX_CONFIG"
    
    if grep -q "root.*public" "$NGINX_CONFIG"; then
        success "✅ Nginx points to public directory"
    else
        warning "⚠️  Nginx may not be pointing to public directory"
    fi
    
    if [[ -L "/etc/nginx/sites-enabled/postfixadmin.conf" ]]; then
        success "✅ Nginx site is enabled"
    else
        warning "⚠️  Nginx site is not enabled"
    fi
else
    warning "Nginx configuration not found: $NGINX_CONFIG"
fi

echo
echo -e "${BLUE}=== Summary ===${NC}"
echo "The setup script correctly handles PostfixAdmin paths by:"
echo "1. Installing to $WEBROOT"
echo "2. Configuring Nginx to serve from $WEBROOT/public"
echo "3. Making setup.php accessible at https://hostname/setup.php"
echo "4. Ensuring proper security by hiding non-public files"
echo
echo -e "${GREEN}Path configuration is correct for PostfixAdmin 3.3.11!${NC}"