{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/WhatsAppCampaign",
  "title": "WhatsAppCampaign",
  "type": "object",
  "properties": {
    "id": {
      "type": "integer",
      "format": "int64",
      "description": "Unique identifier of the campaign."
    },
    "campaignName": {
      "type": "string",
      "description": "Name of the campaign."
    },
    "campaignStatus": {
      "type": "string",
      "description": "Current status of the campaign.",
      "enum": [
        "draft",
        "scheduled",
        "sent",
        "archive"
      ]
    },
    "templateId": {
      "type": "integer",
      "format": "int64",
      "description": "ID of the WhatsApp template used for the campaign."
    },
    "scheduledAt": {
      "type": "string",
      "format": "date-time",
      "description": "UTC date-time when the campaign is scheduled to send."
    },
    "recipients": {
      "type": "object",
      "description": "Target audience for the campaign.",
      "properties": {
        "lists": {
          "type": "array",
          "description": "IDs of contact lists to target.",
          "items": {
            "type": "integer",
            "format": "int64"
          }
        },
        "segments": {
          "type": "array",
          "description": "IDs of segments to target.",
          "items": {
            "type": "integer",
            "format": "int64"
          }
        }
      }
    },
    "statistics": {
      "type": "object",
      "description": "Campaign delivery statistics.",
      "properties": {
        "sent": {
          "type": "integer",
          "format": "int64",
          "description": "Number of messages sent."
        },
        "delivered": {
          "type": "integer",
          "format": "int64",
          "description": "Number of messages delivered."
        },
        "read": {
          "type": "integer",
          "format": "int64",
          "description": "Number of messages read."
        }
      }
    },
    "createdAt": {
      "type": "string",
      "format": "date-time",
      "description": "UTC date-time when the campaign was created."
    },
    "modifiedAt": {
      "type": "string",
      "format": "date-time",
      "description": "UTC date-time when the campaign was last modified."
    }
  }
}