{
  "name": "ShiftProposal",
  "type": "object",
  "properties": {
    "event_id": {
      "type": "string",
      "description": "Event/shift being proposed"
    },
    "event_name": {
      "type": "string",
      "description": "Event name"
    },
    "staff_id": {
      "type": "string",
      "description": "Worker being proposed to"
    },
    "staff_name": {
      "type": "string",
      "description": "Worker name"
    },
    "vendor_id": {
      "type": "string",
      "description": "Vendor making the proposal"
    },
    "proposal_status": {
      "type": "string",
      "enum": [
        "PENDING_WORKER_CONFIRMATION",
        "ACCEPTED",
        "DECLINED",
        "EXPIRED",
        "CANCELLED"
      ],
      "default": "PENDING_WORKER_CONFIRMATION",
      "description": "Status of the proposal"
    },
    "shift_date": {
      "type": "string",
      "format": "date",
      "description": "Date of shift"
    },
    "start_time": {
      "type": "string",
      "description": "Shift start time"
    },
    "end_time": {
      "type": "string",
      "description": "Shift end time"
    },
    "location": {
      "type": "string",
      "description": "Shift location"
    },
    "role": {
      "type": "string",
      "description": "Role/position"
    },
    "pay_rate": {
      "type": "number",
      "description": "Pay rate for shift"
    },
    "total_pay": {
      "type": "number",
      "description": "Total estimated pay"
    },
    "response_deadline": {
      "type": "string",
      "format": "date-time",
      "description": "Deadline for worker response"
    },
    "proposed_at": {
      "type": "string",
      "format": "date-time",
      "description": "When proposal was sent"
    },
    "responded_at": {
      "type": "string",
      "format": "date-time",
      "description": "When worker responded"
    },
    "decline_reason": {
      "type": "string",
      "description": "Reason for declining"
    },
    "was_marked_unavailable": {
      "type": "boolean",
      "default": false,
      "description": "Was worker marked unavailable when proposed"
    },
    "notification_sent": {
      "type": "boolean",
      "default": false,
      "description": "Whether notification was sent"
    }
  },
  "required": [
    "event_id",
    "staff_id",
    "shift_date"
  ]
}