openapi: 3.0.1
info:
  title: eat-api
  version: '2.1'
  description: Simple static API for some (student) food places in Munich.
servers:
  - url: https://tum-dev.github.io/eat-api/{language}
    variables:
      language:
        description: For localization the base path may have to be extended by the language.
        default: ''
        enum:
          - ''
          - 'en/'
paths:
  /{canteen_id}/{year}/{week}.json:
    get:
      summary: Get a menu for the specified canteen, year and week
      parameters:
        - name: canteen_id
          in: path
          description: ID of the canteen
          required: true
          schema:
            $ref: '#/components/schemas/Canteen/properties/canteen_id'
        - name: year
          in: path
          description: Year of the menu to get
          required: true
          schema:
            type: integer
            example: 2022
        - name: week
          in: path
          description: Week of the menu to get with two digits
          required: true
          schema:
            type: string
            pattern: ^\d{2}$
            example: '02'
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Week'
        '404':
          description: no menu found for specified options
      tags:
        - menu
  /{canteen_id}/combined/combined.json:
    get:
      summary: To get all menus for one specific canteen
      parameters:
        - name: canteen_id
          in: path
          description: ID of the canteen
          required: true
          schema:
            $ref: '#/components/schemas/Canteen/properties/canteen_id'
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CanteenMenu'
        '404':
          description: no menu found for the given canteen
      tags:
        - menu
  /all.json:
    get:
      summary: To get all menus for all canteens
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                type: object
                properties:
                  canteens:
                    type: array
                    items:
                      $ref: '#/components/schemas/CanteenMenu'
      tags:
        - menu
  /all_ref.json:
    get:
      deprecated: true
      summary: To get all menus that are not older than one day for all canteens
      description:
        Here dish_type is also normalized. All tailing digits and spaces get
        removed from dish_type. For example Tagesgericht 1 -> Tagesgericht and
        Aktionsessen 6 -> Aktionsessen. Also ignores all menus older than one
        day. This results in this file being usually half the size of the
        all.json file.
        This is currently deprecated, and only supported in the german language.
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  properties:
                    canteen_id:
                      $ref: '#/components/schemas/Canteen/properties/canteen_id'
                    dishes:
                      type: array
                      items:
                        allOf:
                          - $ref: '#/components/schemas/Dish'
                          - properties:
                              date:
                                type: string
                                format: date
      tags:
        - menu
  /enums/canteens.json:
    get:
      summary: To get all available canteens
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Canteen'
      tags:
        - static
  /enums/languages.json:
    get:
      summary: To get all available languages
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Language'
      tags:
        - static
  /enums/labels.json:
    get:
      summary: To get all available labels
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Label'
      tags:
        - static
components:
  schemas:
    Canteen:
      type: object
      description: Information about a canteen
      properties:
        enum_name:
          type: string
          description: Internal identifier for a canteen
          example: MENSA_GARCHING
        name:
          type: string
          description: Readable name for a canteen
          example: Mensa Garching
        location:
          $ref: '#/components/schemas/Location'
        canteen_id:
          type: string
          description: Identifier for the canteen, as it has to be used for accessing data.
          example: mensa-garching
        queue_status:
          type: string
          description:
            URL to another API, where data about the queue length of the canteen
            can be accessed. Is null, when not available.
          example: https://mensa.liste.party/api/
        open_hours:
          $ref: '#/components/schemas/OpenHoursWeek'
    OpenHoursWeek:
      type: object
      description: Specifies the opening hours for a whole working week (mon-fri)
      properties:
        mon:
          $ref: '#/components/schemas/OpenHoursDay'
        tue:
          $ref: '#/components/schemas/OpenHoursDay'
        wed:
          $ref: '#/components/schemas/OpenHoursDay'
        thu:
          $ref: '#/components/schemas/OpenHoursDay'
        fri:
          $ref: '#/components/schemas/OpenHoursDay'
    OpenHoursDay:
      type: object
      description: Specifies, a time range for opening hours. The times always have the format
      properties:
        start:
          type: string
          pattern: '^\d{2}:\d{2}'
          example: 11:00
        end:
          type: string
          pattern: '^\d{2}:\d{2}'
          example: 14:00
    Location:
      type: object
      description: A location description including the readable address and coordinates
      properties:
        address:
          type: string
          description: Readable address consisting of street, house number and city
          example: Boltzmannstraße 19, Garching
        latitude:
          type: number
          example: 48.268132
        longitude:
          type: number
          example: 11.672263
    Language:
      type: object
      description: A language, that is supported by the API
      properties:
        name:
          type: string
          description: Identifier of the language
          example: EN
        base_url:
          type: string
          description:
            Additional base path that is appended to the base url, in order to
            access data for this language. Due to backwards compatibility resons the base_url for german is an empty string.
          example: 'en/'
        label:
          type: string
          description: Readable name of the language in the given language
          example: English
        flag:
          type: string
          description: Emoji flag symbol for the language
          example: 🏴󠁧󠁢󠁥󠁮󠁧󠁿
    Label:
      type: object
      description: Allergene and ingredient information
      properties:
        enum_name:
          type: string
          example: VEGETARIAN
        text:
          type: object
          description:
            Key-value object containing readable labels. The language is given
            in the key, and is referred to to the name from the language.
          additionalProperties:
            type: string
          example:
            DE: Vegetarisch
            EN: vegetarian
        abbreviation:
          type: string
          description: Emoji symbol or short form of a label
          example: 🌽
    CanteenMenu:
      type: object
      description: All dishes for a specific canteen
      properties:
        version:
          type: string
          example: '2.1'
        canteen_id:
          $ref: '#/components/schemas/Canteen/properties/canteen_id'
        weeks:
          type: array
          items:
            $ref: '#/components/schemas/Week'
    Week:
      type: object
      description: All dishes for all days during one week
      properties:
        number:
          type: integer
          description: Week number
          example: 2
        year:
          type: integer
          example: 2022
        days:
          type: array
          items:
            $ref: '#/components/schemas/Day'
    Day:
      type: object
      description: All dishes for one day
      properties:
        date:
          type: string
          format: date
        dishes:
          type: array
          items:
            $ref: '#/components/schemas/Dish'
    Dish:
      type: object
      description: Describes one dish
      properties:
        name:
          type: string
          description: Title of the dish
          example: Pasta all'arrabiata
        prices:
          $ref: '#/components/schemas/Prices'
        labels:
          type: array
          items:
            $ref: '#/components/schemas/Label/properties/enum_name'
        dish_type:
          type: string
          example: Pasta
    Prices:
      type: object
      properties:
        students:
          allOf:
            - $ref: '#/components/schemas/Price'
            - description: Price that students pay
        staff:
          allOf:
            - $ref: '#/components/schemas/Price'
            - description: Price that staff pays
        guests:
          allOf:
            - $ref: '#/components/schemas/Price'
            - description: Price that guests pay
    Price:
      type: object
      properties:
        base_price:
          type: number
          description: Base price of a dish
          example: 0
        price_per_unit:
          type: number
          description: Price per unit as given
          example: 0.75
        unit:
          type: string
          description: The unit used for calculating the price
          example: 100g
tags:
  - name: menu
    description: Get information about dish plans
  - name: static
    description: Static information regarding canteens, labels and languages