{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "vnetLocation": {
            "type": "string",
            "metadata": {
                "description": "Location for all Vnets"
            }
        },
        "vnetCount": {
            "type": "int",
            "metadata": {
                "description": "Number of Vnets to create"
            }
        },
        "vnetNamePrefix": {
            "type": "string",
            "metadata": {
                "description": "Prefix for the Vnet names"
            }
        },
        "vnetAddressSpacePrefix": {
            "type": "string",
            "metadata": {
                "description": "Base address space prefix for Vnets (e.g., '10.0')"
            }
        },
        "subnetCount": {
            "type": "int",
            "metadata": {
                "description": "Number of Subnets to create per Vnet"
            }
        },
        "subnetNamePrefix": {
            "type": "string",
            "metadata": {
                "description": "Prefix for the Subnet names"
            }
        }
    },
    "resources": [
        {
            "type": "Microsoft.Network/virtualNetworks",
            "apiVersion": "2023-04-01",
            "location": "[parameters('vnetLocation')]",
            "copy": {
                "name": "vnetCopy",
                "count": "[parameters('vnetCount')]",
                "mode": "serial",
                "batchSize": 1
            },
            "name": "[concat(parameters('vnetNamePrefix'), copyIndex('vnetCopy'))]",            
            "properties": {
                "addressSpace": {
                    "addressPrefixes": [
                        "[concat(parameters('vnetAddressSpacePrefix'), '.', copyIndex('vnetCopy'), '.0.0/16')]"
                    ]
                },
                "subnets": [
                    {
                    "copy": {
                        "name": "subnetCopy",
                        "count": "[parameters('subnetCount')]",
                        "mode": "serial",
                        "batchSize": 1
                    },
                    "input": [
                        {                                              
                            "name": "[concat(parameters('subnetNamePrefix'), copyIndex('subnetCopy'))]",                        
                            "properties": {
                                "addressPrefix": "[concat(parameters('vnetAddressSpacePrefix'), '.', copyIndex('vnetCopy'), '.', copyIndex('subnetCopy'), '.0/24')]"
                                }
                            }
                        ]
                    }
                ]
            }
        }
    ]
}