provider "proxmox" {
  endpoint  = var.proxmox_server
  api_token = var.proxmox_apikey
  ssh {
    agent    = true
    username = var.proxmox_username_ssh
    socks5_server = var.proxmox_server_ssh
    password = var.proxmox_password_ssh   
    
    node {
      name    = "fenix"
      address = "127.0.0.1"
      port = 1081
    }
}
}

resource "proxmox_virtual_environment_download_file" "latest_ubunto_cloud_img" {
  content_type = "iso"
  datastore_id = "local"
  node_name    = "fenix"
  url = "https://cloud-images.ubuntu.com/jammy/20250725/jammy-server-cloudimg-amd64.img"
  file_name = "jammyservercloudimgamd64.img"
}

resource "proxmox_virtual_environment_file" "cloud_init_yaml" {
  node_name    = "fenix"
  datastore_id = "local-snippets"
  content_type = "snippets"

  source_raw {
    file_name = "user-data-cloud-config.yaml"
    data = yamldecode(file("${path.module}/cloud-init-base.yaml"))
  }
}



# Gerar um snippet cloud-init por VM
resource "proxmox_virtual_environment_file" "vm_user_data" {
  for_each = local.merged_cloudinit

  node_name    = "fenix"
  datastore_id = "local-snippets"
  content_type = "snippets"

  source_raw {
    file_name = "cloud-init-iac-k8s-${each.key}.yaml"
    data      = yamlencode(each.value)
  }
}

locals {
  # Lê o ficheiro base (que está no mesmo módulo)
  base_cloudinit = yamldecode(file("${path.module}/cloud-init-base.yaml"))

  # Renderiza cada ficheiro por VM
  vm_cloudinits = {
    for vm in var.proxmox_k8s_vms : vm.name => yamldecode(
      templatefile("${path.module}/cloud-init-vm.yaml.tftpl", {
        extra_packages = try(vm.extra_packages, [])
        extra_users    = try(vm.extra_users, [])
        extra_runcmd   = try(vm.extra_runcmd, [])
      })
    )
  }


  deep_merge = function("deep_merge", [any, any], any, <<-EOT
    base, override = args
    result = {}
    for k in setunion(keys(base), keys(override)) {
      if can(base[k]) && can(override[k]) {
        if type(base[k]) == list && type(override[k]) == list {
          result[k] = concat(base[k], override[k])
        } else if type(base[k]) == map && type(override[k]) == map {
          result[k] = deep_merge(base[k], override[k])
        } else {
          result[k] = override[k]
        }
      } else if can(override[k]) {
        result[k] = override[k]
      } else {
        result[k] = base[k]
      }
    }
    return result
  EOT
  )

  merged_cloudinit = {
    for vm_name, vm_cfg in local.vm_cloudinits : 
    vm_name => local.deep_merge([local.base_cloudinit, vm_cfg])
  }
}

resource "proxmox_virtual_environment_vm" "proxmox-kubernetes-VM-template" {

  depends_on = [proxmox_virtual_environment_download_file.latest_ubunto_cloud_img, proxmox_virtual_environment_file.cloud_init_yaml]
  name      = "proxmox-kubernetes-VM-template"
  node_name = "fenix"
  vm_id     = 1002
  template  = true
  started   = false

  agent {
    enabled = true
  }
  tags        = ["opentofu", "kubernetes", "fedora"]
  machine     = "q35"
  bios        = "seabios"
  description = "kubernetes VM Template created via iac"

  cpu {
    cores = 2
  }

  memory {
    dedicated = 4096
  }

  # Configuração do disco rígido
  #disk {
  #  datastore_id = "local-lvm"
  #  interface    = "scsi1"
  #  size         = 64
  #}

  disk {
    datastore_id = "local-lvm"
    file_id      = proxmox_virtual_environment_download_file.latest_ubunto_cloud_img.id
    interface    = "scsi0"
    file_format  = "qcow2"
  }

  # Configuração da interface de rede
  network_device {
    bridge = "vmbr0"
    model  = "virtio"
  }

initialization {
  ip_config {
    ipv4 {
    address = "dhcp"  # IP estático + máscara de rede
    }
  }
  user_data_file_id = proxmox_virtual_environment_file.cloud_init_yaml.id
 }
}


resource "proxmox_virtual_environment_vm" "k8s_vms" {
  for_each  = { for vm in var.proxmox_k8s_vms : vm.name => vm }
  depends_on = [proxmox_virtual_environment_vm.proxmox-kubernetes-VM-template]
  name      = each.value.name
  node_name = each.value.node_name
  vm_id = each.value.vm_id

  cpu {
    cores = each.value.cores
  }

  memory {
    dedicated = each.value.memory
  }

  disk {
    datastore_id = each.value.data_store
    size         = each.value.disk_size
    interface    = "scsi1"
  }

  clone {
    vm_id = proxmox_virtual_environment_vm.proxmox-kubernetes-VM-template.id
  }


  initialization {
    ip_config {
      ipv4 {
        address = each.value.ip
        gateway = each.value.gateway
      }
    }

    user_data_file_id = proxmox_virtual_environment_file.vm_user_data[each.key].id
  }


  agent {
    enabled = true
  }
}