{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": true,
  "properties": {
    "_slug": {
      "description": "Entry identifier (URL slug / filename without extension)",
      "type": "string"
    },
    "campaignName": {
      "description": "Campaign name",
      "type": "string"
    },
    "css": {
      "description": "Optional CSS",
      "type": "string"
    },
    "html": {
      "description": "HTML content",
      "type": "string"
    },
    "insertHtml": {
      "default": "beforeend",
      "description": "Position relative to selector",
      "enum": [
        "afterbegin",
        "beforeend",
        "afterend",
        "beforebegin",
        "replace"
      ],
      "type": "string"
    },
    "javascript": {
      "description": "Optional JavaScript",
      "type": "string"
    },
    "medias": {
      "description": "Media (images)",
      "items": {
        "description": "Reference (slug) to collection 'img'",
        "type": "string"
      },
      "type": "array"
    },
    "selector": {
      "description": "CSS selector where content is inserted",
      "type": "string"
    },
    "timeUntil": {
      "description": "Time limit (until when the campaign runs)",
      "format": "date-time",
      "type": "string"
    },
    "urlPattern": {
      "description": "URL pattern (e.g. regex) for campaign usage",
      "type": "string"
    }
  },
  "required": [
    "_slug",
    "campaignName",
    "urlPattern",
    "selector",
    "insertHtml"
  ],
  "type": "object"
}