{ "type":"object",
  "title": "Document",
  "name": "document",
  "description": "A document of the defined doctype",
  "properties":{
    "doctype":{
      "description": "Type of the document",
      "type":"string",
      "required": true,
      "enum": ["invoice", "offer"]
    },
    "doctag_version":{
      "description": "Doctag Version used e.g.: 1.0.0",
      "type":"string",
      "required": true
    },
    "id":{
      "description": "Unique ID",
      "type":"string",
      "required": true
    },
    "number":{
      "description": "Unique number",
      "type":"string"
    },
    "customer_number":{
      "description": "Unique number of the contact related to this doc",
      "type":"string"
    },
    "date":{
      "description": "Date the document is issued. ISO-8601 format: YYYY-MM-DD",
      "format":"date",
      "type":"string",
      "required": true
    },
    "delivery_date":{
      "description": "Date ?? delivered. ISO-8601 format: YYYY-MM-DD",
      "format":"date",
      "type":"string",
      "required": true
    },
    "due_date":{
      "description": "Date the invoice is due. ISO-8601 format: YYYY-MM-DD",
      "format":"date",
      "type":"string"
    },
    "discount_date":{
      "description": "Date until which a cash discount can be applied. ISO-8601 format: YYYY-MM-DD",
      "format":"date",
      "type":"string"
    },
    "intro":{
      "description": "Intro text",
      "type":"string"
    },
    "note":{
      "description": "Notes text",
      "type":"string"
    },
    "items":{
      "description": "Line items for the document. The order matters.",
      "type":"array",
      "properties":{"$ref":"./item.json#properties"}
    },
    "sender":{
      "description": "Document issuer",
      "type":"object",
      "properties":{"$ref":"./address.json#properties"}
    },
    "recipient":{
      "description": "Document receiver",
      "type":"object",
      "properties":{"$ref":"./address.json#properties"}
    },
    "currency": {
      "description": "ISO 4217 Currency Code",
      "maxLength": 3,
      "type":"string",
      "required": true
    },
    "total":{
      "description": "Gross and net total for all line items",
      "type":"object",
      "properties":{"$ref":"./amount.json#properties"}
    },
    "taxes":{
      "description": "All taxes applied to all items",
      "type":"array",
      "properties":{"$ref":"./tax.json#properties"}
    },
    "discounts":{
      "type":"array",
      "properties":{"$ref":"./discount.json#properties"}
    }
  }
}