{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "https://raw.githubusercontent.com/amplience/dc-sample-blog-nextjs/master/schemas/blog-post.json",
  "title": "Blog post",
  "description": "A blog post",
  "allOf": [
    {
      "$ref": "http://bigcontent.io/cms/schema/v1/core#/definitions/content"
    }
  ],
  "type": "object",
  "properties": {
    "title": {
      "title": "Title",
      "description": "Used for heading and SEO title tag",
      "type": "string",
      "minLength": 1,
      "maxLength": 150
    },
    "_meta":{
      "type":"object",
      "properties":{
        "deliveryKey":{
          "type":"string",
          "title":"Delivery key",
          "description": "The delivery key is used as the URL slug"
        }
      },
      "required": ["deliveryKey"]
    }, 
    "date": {
      "title": "Creation date",
      "description": "Creation date (YYYY-MM-DD)",
      "type": "string",
      "maxLength": 10,
      "minLength": 10,
      "pattern": "^[0-9]{4}-((0[1-9])|(1[0-2]))-((0[1-9])|([1-2][0-9])|(3[0-1]))$"
    },
    "description": {
      "title": "Description",
      "description": "Used for blog listing page and SEO description",
      "type": "string",
      "minLength": 1,
      "maxLength": 200
    },
    "image": {
      "title": "Image",
      "description": "Used for the blog post's thumbnail and banner",
      "allOf": [
        {
          "$ref": "http://bigcontent.io/cms/schema/v1/core#/definitions/content-link"
        },
        {
          "properties": {
            "contentType": {
              "enum": ["https://raw.githubusercontent.com/amplience/dc-sample-blog-nextjs/master/schemas/image.json"]
            }
          }
        }
      ]
    },
    "tags": {
      "title": "Tags",
      "description": "Blog tags",
      "type": "array",
      "minItems": 0,
      "maxItems": 10,
      "items": {
        "type": "string",
        "minLength": 1,
        "maxLength": 100,
        "title": "Tag",
        "description": ""
      }
    },
    "readTime": {
      "title": "Read time",
      "description": "The time it takes to read the blog",
      "type": "integer"
    },
    "authors": {
      "title": "Blog author",
      "description": "Article author(s) - max 3",
      "type": "array",
      "minItems": 1,
      "maxItems": 3,
      "items": {
        "allOf": [
          {
            "$ref": "http://bigcontent.io/cms/schema/v1/core#/definitions/content-link"
          },
          {
            "properties": {
              "contentType": {
                "enum": ["https://raw.githubusercontent.com/amplience/dc-sample-blog-nextjs/master/schemas/author.json"]
              }
            }
          }
        ]
      }
    },
    "content": {
      "title": "Content",
      "description": "",
      "type": "array",
      "minItems": 1,
      "maxItems": 20,
      "items": {
        "allOf": [
          {
            "$ref": "http://bigcontent.io/cms/schema/v1/core#/definitions/content-link"
          },
          {
            "properties": {
              "contentType": {
                "title": "Content",
                "enum": [
                  "https://raw.githubusercontent.com/amplience/dc-sample-blog-nextjs/master/schemas/image.json",
                  "https://raw.githubusercontent.com/amplience/dc-sample-blog-nextjs/master/schemas/video.json",
                  "https://raw.githubusercontent.com/amplience/dc-sample-blog-nextjs/master/schemas/text.json"
                ]
              }
            }
          }
        ]
      }
    }
  },
  "propertyOrder": ["title", "_meta", "authors", "date", "description", "image", "tags", "readTime", "content"],
  "required": ["title", "authors", "date", "description", "image", "readTime", "content"]
}