{#
  vlan_yang.j2 — Produce a JSON array of VLAN configuration objects.

  Input: GraphQL response from vlan_intent query.
  The query returns VLANs from two sources:
    1. data.InfraVTEP[].vlan_vni_mappings[].vlan  (L2/VXLAN VLANs)
    2. data.InfraInterfaceVlan[].vlan              (SVI/routing/MLAG VLANs)

  We merge both sources, deduplicate by vlan_id, and emit one object per VLAN.
#}
{%- set vlans = {} -%}

{#— Collect VLANs from VTEP VLAN-VNI mappings —#}
{%- for vtep_edge in data.InfraVTEP.edges -%}
  {%- for mapping_edge in vtep_edge.node.vlan_vni_mappings.edges -%}
    {%- set vlan_node = mapping_edge.node.vlan.node -%}
    {%- set vid = vlan_node.vlan_id.value | string -%}
    {%- if vid not in vlans -%}
      {%- set vni_val = none -%}
      {%- set vni_type_val = none -%}
      {%- if vlan_node.vni is defined and vlan_node.vni is not none and vlan_node.vni.node is not none -%}
        {%- set vni_val = vlan_node.vni.node.vni.value -%}
        {%- set vni_type_val = vlan_node.vni.node.vni_type.value -%}
      {%- endif -%}
      {%- set _ = vlans.update({vid: {
        "vlan_id": vlan_node.vlan_id.value,
        "name": vlan_node.name.value,
        "status": vlan_node.status.value | default('') | upper,
        "vlan_type": vlan_node.vlan_type.value | default(none),
        "trunk_groups": vlan_node.trunk_groups.value | default([]),
        "stp_enabled": vlan_node.stp_enabled.value,
        "vni": vni_val,
        "vni_type": vni_type_val
      }}) -%}
    {%- endif -%}
  {%- endfor -%}
{%- endfor -%}

{#— Collect VLANs from SVI interfaces —#}
{%- for svi_edge in data.InfraInterfaceVlan.edges -%}
  {%- if svi_edge.node.vlan is defined and svi_edge.node.vlan is not none and svi_edge.node.vlan.node is not none -%}
    {%- set vlan_node = svi_edge.node.vlan.node -%}
    {%- set vid = vlan_node.vlan_id.value | string -%}
    {%- if vid not in vlans -%}
      {%- set vni_val = none -%}
      {%- set vni_type_val = none -%}
      {%- if vlan_node.vni is defined and vlan_node.vni is not none and vlan_node.vni.node is not none -%}
        {%- set vni_val = vlan_node.vni.node.vni.value -%}
        {%- set vni_type_val = vlan_node.vni.node.vni_type.value -%}
      {%- endif -%}
      {%- set _ = vlans.update({vid: {
        "vlan_id": vlan_node.vlan_id.value,
        "name": vlan_node.name.value,
        "status": vlan_node.status.value | default('') | upper,
        "vlan_type": vlan_node.vlan_type.value | default(none),
        "trunk_groups": vlan_node.trunk_groups.value | default([]),
        "stp_enabled": vlan_node.stp_enabled.value,
        "vni": vni_val,
        "vni_type": vni_type_val
      }}) -%}
    {%- endif -%}
  {%- endif -%}
{%- endfor -%}

{#— Sort by vlan_id and emit JSON array —#}
{%- set sorted_vlans = vlans.values() | sort(attribute='vlan_id') -%}
{{ sorted_vlans | tojson(indent=2) }}