{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://developer.grubhub.com/schemas/grubhub/menu.json",
  "title": "Grubhub Normalized Menu",
  "description": "A PosNormalizedMenu structure for the Grubhub Menu API containing schedules, sections, items, modifiers, and pricing. Each object has an external_id used for diff-based ingestion.",
  "type": "object",
  "required": ["merchant_id", "schedules"],
  "properties": {
    "merchant_id": {
      "type": "string",
      "description": "The Grubhub merchant identifier this menu belongs to."
    },
    "schedules": {
      "type": "array",
      "description": "Top-level menu schedules defining what items are available during specific time periods.",
      "minItems": 1,
      "items": {
        "$ref": "#/$defs/MenuSchedule"
      }
    }
  },
  "$defs": {
    "MenuSchedule": {
      "type": "object",
      "description": "A schedule defining availability windows and menu sections available during those periods.",
      "required": ["external_id", "name", "sections"],
      "properties": {
        "external_id": {
          "type": "string",
          "description": "A unique external identifier assigned by the partner for diff-based menu ingestion."
        },
        "name": {
          "type": "string",
          "description": "The display name of the schedule."
        },
        "availability": {
          "type": "array",
          "description": "Time windows when this schedule is active.",
          "items": {
            "$ref": "#/$defs/Availability"
          }
        },
        "sections": {
          "type": "array",
          "description": "Menu sections available during this schedule.",
          "minItems": 1,
          "items": {
            "$ref": "#/$defs/MenuSection"
          }
        }
      }
    },
    "Availability": {
      "type": "object",
      "description": "A time window defining when a schedule is available.",
      "required": ["day_of_week", "start_time", "end_time"],
      "properties": {
        "day_of_week": {
          "type": "string",
          "description": "The day of the week this availability applies to.",
          "enum": ["MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY", "SUNDAY"]
        },
        "start_time": {
          "type": "string",
          "description": "The start time in HH:mm format.",
          "pattern": "^\\d{2}:\\d{2}$"
        },
        "end_time": {
          "type": "string",
          "description": "The end time in HH:mm format.",
          "pattern": "^\\d{2}:\\d{2}$"
        }
      }
    },
    "MenuSection": {
      "type": "object",
      "description": "A grouping of menu items such as appetizers, entrees, or desserts.",
      "required": ["external_id", "name", "items"],
      "properties": {
        "external_id": {
          "type": "string",
          "description": "A unique external identifier for diff-based ingestion."
        },
        "name": {
          "type": "string",
          "description": "The display name of the section."
        },
        "items": {
          "type": "array",
          "description": "Menu items within this section.",
          "minItems": 1,
          "items": {
            "$ref": "#/$defs/MenuItem"
          }
        }
      }
    },
    "MenuItem": {
      "type": "object",
      "description": "An individual menu item that a diner can order.",
      "required": ["external_id", "name", "price"],
      "properties": {
        "external_id": {
          "type": "string",
          "description": "A unique external identifier for diff-based ingestion."
        },
        "name": {
          "type": "string",
          "description": "The display name of the menu item."
        },
        "description": {
          "type": "string",
          "description": "A description of the menu item."
        },
        "price": {
          "type": "number",
          "description": "The base price of the menu item.",
          "minimum": 0
        },
        "available": {
          "type": "boolean",
          "description": "Whether this item is currently available for ordering.",
          "default": true
        },
        "size_prompt": {
          "$ref": "#/$defs/SizePrompt"
        },
        "modifier_prompts": {
          "type": "array",
          "description": "Modifier prompts allowing customization of this item.",
          "items": {
            "$ref": "#/$defs/ModifierPrompt"
          }
        }
      }
    },
    "SizePrompt": {
      "type": "object",
      "description": "A size selection prompt. Sizes can affect the price of the item and its modifiers.",
      "required": ["external_id", "name", "options"],
      "properties": {
        "external_id": {
          "type": "string",
          "description": "A unique external identifier for this size prompt."
        },
        "name": {
          "type": "string",
          "description": "The display name for the size prompt."
        },
        "options": {
          "type": "array",
          "description": "Available size options.",
          "minItems": 1,
          "items": {
            "$ref": "#/$defs/SizeOption"
          }
        }
      }
    },
    "SizeOption": {
      "type": "object",
      "description": "An individual size option.",
      "required": ["external_id", "name"],
      "properties": {
        "external_id": {
          "type": "string",
          "description": "A unique external identifier for this size option."
        },
        "name": {
          "type": "string",
          "description": "The display name of the size option."
        },
        "price": {
          "type": "number",
          "description": "The price adjustment for selecting this size.",
          "minimum": 0
        }
      }
    },
    "ModifierPrompt": {
      "type": "object",
      "description": "A modifier prompt allowing customization such as dressing choice or toppings.",
      "required": ["external_id", "name", "options"],
      "properties": {
        "external_id": {
          "type": "string",
          "description": "A unique external identifier for this modifier prompt."
        },
        "name": {
          "type": "string",
          "description": "The display name of the modifier prompt."
        },
        "required": {
          "type": "boolean",
          "description": "Whether a selection is required from this modifier prompt.",
          "default": false
        },
        "min_selections": {
          "type": "integer",
          "description": "Minimum number of selections required.",
          "minimum": 0,
          "default": 0
        },
        "max_selections": {
          "type": "integer",
          "description": "Maximum number of selections allowed.",
          "minimum": 1
        },
        "options": {
          "type": "array",
          "description": "Available modifier options.",
          "minItems": 1,
          "items": {
            "$ref": "#/$defs/ModifierOption"
          }
        }
      }
    },
    "ModifierOption": {
      "type": "object",
      "description": "An individual modifier option.",
      "required": ["external_id", "name"],
      "properties": {
        "external_id": {
          "type": "string",
          "description": "A unique external identifier for this modifier option."
        },
        "name": {
          "type": "string",
          "description": "The display name of the modifier option."
        },
        "price": {
          "type": "number",
          "description": "The additional price for selecting this modifier.",
          "minimum": 0,
          "default": 0
        },
        "available": {
          "type": "boolean",
          "description": "Whether this modifier option is currently available.",
          "default": true
        }
      }
    }
  }
}