{
  "version": "2.2.0",
  "name": "Delete Forum Post",
  "description": "Delete or soft-delete a forum post with authorization checks",
  "trigger": {
    "type": "http",
    "method": "DELETE",
    "path": "/forum/posts/:postId"
  },
  "nodes": [
    {
      "id": "validate_context",
      "type": "operation",
      "op": "validate",
      "input": "{{ $context.tenantId }}",
      "validator": "required"
    },
    {
      "id": "fetch_post",
      "type": "operation",
      "op": "database_read",
      "entity": "ForumPost",
      "params": {
        "filter": {
          "id": "{{ $json.postId }}",
          "tenantId": "{{ $context.tenantId }}"
        }
      }
    },
    {
      "id": "check_authorization",
      "type": "operation",
      "op": "condition",
      "condition": "{{ $steps.fetch_post.output.authorId === $context.user.id || $context.user.level >= 3 }}"
    },
    {
      "id": "soft_delete_post",
      "type": "operation",
      "op": "database_update",
      "entity": "ForumPost",
      "params": {
        "filter": {
          "id": "{{ $json.postId }}"
        },
        "data": {
          "isDeleted": true,
          "deletedAt": "{{ new Date().toISOString() }}"
        }
      }
    },
    {
      "id": "decrement_thread_count",
      "type": "operation",
      "op": "database_read",
      "entity": "ForumThread",
      "params": {
        "filter": {
          "id": "{{ $steps.fetch_post.output.threadId }}"
        }
      }
    },
    {
      "id": "update_thread_count",
      "type": "operation",
      "op": "database_update",
      "entity": "ForumThread",
      "params": {
        "filter": {
          "id": "{{ $steps.fetch_post.output.threadId }}"
        },
        "data": {
          "postCount": "{{ Math.max($steps.decrement_thread_count.output.postCount - 1, 0) }}"
        }
      }
    },
    {
      "id": "emit_deleted",
      "type": "action",
      "action": "emit_event",
      "event": "post_deleted",
      "channel": "{{ 'forum:thread:' + $steps.fetch_post.output.threadId }}",
      "data": {
        "postId": "{{ $json.postId }}"
      }
    },
    {
      "id": "return_success",
      "type": "action",
      "action": "http_response",
      "status": 200,
      "body": {
        "message": "Post deleted successfully"
      }
    }
  ]
}