openapi: 3.0.0
info:
  title: CatalogManagerApi
  description: Manage a catalog through an API for CICS.
  version: '1.1'
  license:
    name: Apache-2.0
    url: https://opensource.org/licenses/Apache-2.0
servers:
- url: /
security:
  - BasicAuth: []
  - BearerAuth: []
paths:
  /items:
    get:
      tags:
        - Catalog
      summary: Get items in the catalog
      description: Uses the catalogProgram CICS COMMAREA z/OS asset
      operationId: itemsGet
      parameters:
        - $ref: '#/components/parameters/startItemID'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CatalogResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /items/{id}:
    get:
      tags:
        - Catalog
      summary: Get an item from the catalog
      description: Uses the catalogProgram CICS COMMAREA z/OS asset
      operationId: itemsIdGet
      parameters:
        - $ref: '#/components/parameters/id'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CatalogItemResponse'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
                example:
                  message: Item could not be found
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
                example:
                  message: A message describing the error
  /orders:
    post:
      tags:
        - Catalog
      summary: Place an order for an item
      description: Uses the catalogProgram CICS COMMAREA z/OS asset
      operationId: ordersPost
      parameters:
        - $ref: '#/components/parameters/itemNumber'
        - $ref: '#/components/parameters/quantity'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        message:
          type: string
      example:
        message: A message describing the error
    CatalogResponse:
      type: object
      properties:
        totalItems:
          type: integer
          minimum: 0
          maximum: 999
        items:
          type: array
          items:
            $ref: '#/components/schemas/CatalogItemResponse'
    CatalogItemResponse:
      type: object
      properties:
        summary:
          type: object
          properties:
            stock:
              type: string
              maxLength: 150
              example: Department 10 has 56 'Ball Pens Red 24pk' in stock.
            orders:
              type: string
              maxLength: 300
              example: '10 ''Ball Pens Red 24pk'' on order at price $2.9. Total orders value: $29.'
        information:
          type: object
          properties:
            itemReference:
              type: integer
              minimum: 0
              maximum: 9999
            description:
              type: string
              maxLength: 40
            cost:
              type: string
              maxLength: 6
            department:
              type: integer
              minimum: 0
              maximum: 999
            stock:
              type: integer
              minimum: 0
              maximum: 9999
            onOrder:
              type: integer
              minimum: 0
              maximum: 999
  parameters:
    id:
      name: id
      in: path
      required: true
      style: simple
      explode: false
      schema:
        type: string
    startItemID:
      name: startItemID
      in: query
      required: true
      style: form
      explode: true
      schema:
        type: string
    itemNumber:
      name: itemNumber
      in: query
      required: true
      style: form
      explode: true
      schema:
        type: string
    quantity:
      name: quantity
      in: query
      required: true
      style: form
      explode: true
      schema:
        type: string
  securitySchemes:
    BasicAuth:
      type: http
      scheme: basic
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT