openapi: 3.0.1
info:
  title: ASMP
  description: Application Server Management Protocol server
  termsOfService: http://asmp.io/terms/
  contact:
    email: apiteam@asmp.io
  license:
    name: Apache 2.0
    url: http://www.apache.org/licenses/LICENSE-2.0.html
  version: 1.0.0
externalDocs:
  description: Find out more about ASMP
  url: http://asmp.io
servers:
- url: https://swagger.asmp.io/v1
- url: http://swagger.asmp.io/v1
tags:
- name: change
  description: Change related endpoints
- name: rollback
  description: Rollback related endpoints
- name: status
  description: Status related endpoints
paths:
  /check:
    post:
      summary: Define a list of desired changes using abstract constraints. Server should process these constraints, check if they can be fulfilled and respond with the possible resolutions.
      tags: ["change"]
      operationId: check
      requestBody:
        description: Check request
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CheckRequest'
        required: true
      responses:
        200:
          description: Response showing the server's resolution to the check request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckResponse'
        405:
          description: Invalid input
          content: {}
      security:
      - asmp_auth: []
  /change:
    post:
      summary: Request a specific change for one or multiple components as previously checked in a /check request
      tags: ["change"]
      operationId: change
      requestBody:
        description: Request a specific change
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ChangeRequest'
        required: true
      responses:
        200:
          description: Response providing the change ID
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChangeResponse'
        405:
          description: Invalid input
          content: {}
      security:
      - asmp_auth: []
  /rollback:
    post:
      summary: Rollback a specific change set
      tags: ["rollback"]
      operationId: rollback
      requestBody:
        description: Define the changeset that should be rolled back
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RollbackRequest'
        required: true
      responses:
        200:
         description: Response providing the rollback ID
         content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChangeResponse'
        405:
          description: Invalid input
          content: {}
      security:
      - asmp_auth: []
  /status/{id}:
    get:
      summary: Get the current status for a given request ID
      tags: ["status"]
      operationId: status
      parameters:
        - in: path
          name: id
          schema:
            type: string
            format: 'uuid'
            example: 'e38443a5-e6cb-4297-98cc-28eced0d8e7e'
          required: true
          description: UUID of the change to get the status from
      responses:
        200:
         description: Response describing the current change status
         content:
            application/json:
              schema:
                $ref: '#/components/schemas/StatusResponse'
        405:
          description: Invalid input
          content: {}
      security:
      - asmp_auth: []
components:
  schemas:
    CheckRequest:
      type: object
      properties:
        components:
          type: array
          items:
            $ref: '#/components/schemas/ComponentChangeRequest'
      example: |
        {
          components: [
            {
              name: 'PHP',
              constraintType: 'VERSION'
              constraint: {
                value: '>= 7.0 && <= 7.3' 
              }
            }
          ]

        }
    RollbackRequest:
      type: object
      required:
        - id
      properties:
        callback:
          type: string
          format: uri
          description: Callback URL being called once the request has been processed
        id:
          type: string
          format: uuid
          example: 'e38443a5-e6cb-4297-98cc-28eced0d8e7e'
    ChangeRequest:
      type: object
      required:
        - components
      properties:
        callback:
          type: string
          format: uri
          description: Callback URL being called once the request has been processed
        components:
          type: array
          items:
            $ref: '#/components/schemas/ComponentChange'
    CheckResponse:
      type: object
      properties:
        fullfilable:
          type: boolean
        components:
          type: array
          items:
            $ref: '#/components/schemas/ComponentChange'
      example: |
        {
          fullfilable: true
          components: [
            {
              name: 'PHP',
              value: '7.2.9',
            }
          ]
        }
    ComponentChange:
      required:
      - name
      - value
      type: object
      properties:
        name:
          type: string
          description: component name according to reserved component names, see asmp.io
          example: PHP
        value:
          type: string
          description: Best value for the requested constraint, determined by the server
    ComponentChangeRequest:
      required:
      - name
      - constraint_type
      - constraint
      type: object
      properties:
        name:
          type: string
          description: component name according to reserved component names, see asmp.io
          example: PHP
        constraintType:
          type: string
          enum:
            - VERSION
            - RANGE
            - EXACT
            - ONEOF
        constraint:
          type: object
          oneOf:
          - $ref: '#/components/schemas/VersionConstraint'
          - $ref: '#/components/schemas/RangeConstraint'
          - $ref: '#/components/schemas/ExactConstraint'
          - $ref: '#/components/schemas/OneofConstraint'
    VersionConstraint:
      type: object
      required:
      - value
      properties:
        value:
          type: string
          description: Version constraint string matching composer version contraints, see https://getcomposer.org/doc/articles/versions.md
    RangeConstraint:
      type: object
      required:
      - value
      properties:
        min:
          type: number
        max:
          type: number
    OneofConstraint:
      type: object
      required:
      - value
      properties:
        value:
          type: array
          items:
            type: string
          description: array of acceptable items
    ExactConstraint:
      type: object
      required:
      - value
      properties:
        value:
          type: string
          description: Value that the component has to match after the change
    RollbackId:
      type: object
      properties:
        id:
          type: string
          format: uuid
          example: 'e38443a5-e6cb-4297-98cc-28eced0d8e7e'
    ChangeResponse:
      type: object
      properties:
        message:
          type: string
        id:
          type: string
          format: uuid
          example: 'e38443a5-e6cb-4297-98cc-28eced0d8e7e'
    StatusResponse:
      type: object
      properties:
        code:
          $ref: '#/components/schemas/ChangeStatusCode'
        message:
          type: string
    ChangeStatusCode:
      type: integer
      enum: [202,200,422,500]
      description: >
            Change Status Code:
             * `202` - Change is pending
             * `200` - Change has been completed
             * `422` - The requested changeset can not be fulfilled
             * `500` - An error occured
  securitySchemes:
    asmp_auth:
      type: apiKey
      name: X-API-KEY
      in: header