# This is the Oracle Functions API spec
# If you make changes here, remember to run `go generate` in api/models/ and
# api/server to make sure you use the changes.

swagger: '2.0'
info:
  title: Oracle Functions
  description: The open source serverless platform.
  version: "0.1.34"
# the domain of the service
host: "127.0.0.1:8080"
# array of all schemes that your API supports
schemes:
  - https
  - http
# will be prefixed to all paths
basePath: /v1
consumes:
  - application/json
produces:
  - application/json
paths:
  /version:
    get:
      summary: "Get daemon version."
      tags:
        - Version
      responses:
        200:
          description: Daemon version.
          schema:
            $ref: '#/definitions/Version'
  /apps:
    get:
      summary: "Get all app names."
      description: "Get a list of all the apps in the system."
      tags:
        - Apps
      responses:
        200:
          description: List of apps.
          schema:
            $ref: '#/definitions/AppsWrapper'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'
    post:
      summary: "Post new app"
      description: "Insert a new app"
      tags:
        - Apps
      parameters:
        - name: body
          in: body
          description: App to post.
          required: true
          schema:
            $ref: '#/definitions/AppWrapper'
      responses:
        200:
          description: App details and stats.
          schema:
            $ref: '#/definitions/AppWrapper'
        400:
          description: Parameters are missing or invalid.
          schema:
            $ref: '#/definitions/Error'
        409:
          description: App already exists.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'


  /apps/{app}:
    delete:
      summary: "Delete an app."
      description: "Delete an app."
      tags:
        - Apps
      parameters:
        - name: app
          in: path
          description: Name of the app.
          required: true
          type: string
      responses:
        200:
          description: Apps successfully deleted.
        404:
          description: App does not exist.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'
    get:
      summary: "Get information for a app."
      description: "This gives more details about a app, such as statistics."
      tags:
        - Apps
      parameters:
        - name: app
          in: path
          description: name of the app.
          required: true
          type: string
      responses:
        200:
          description: App details and stats.
          schema:
            $ref: '#/definitions/AppWrapper'
        404:
          description: App does not exist.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'
    patch:
      summary: "Updates an app."
      description: "You can set app level settings here. "
      tags:
        - Apps
      parameters:
        - name: app
          in: path
          description: name of the app.
          required: true
          type: string
        - name: body
          in: body
          description: App to post.
          required: true
          schema:
            $ref: '#/definitions/AppWrapper'
      responses:
        200:
          description: App details and stats.
          schema:
            $ref: '#/definitions/AppWrapper'
        400:
          description: Parameters are missing or invalid.
          schema:
            $ref: '#/definitions/Error'
        404:
          description: App does not exist.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'

  /apps/{app}/routes:
    post:
      summary: Create new Route
      description: Create a new route in an app, if app doesn't exists, it creates the app. Post does not skip validation of zero values.
      tags:
        - Routes
      parameters:
        - name: app
          in: path
          description: name of the app.
          required: true
          type: string
        - name: body
          in: body
          description: One route to post.
          required: true
          schema:
            $ref: '#/definitions/RouteWrapper'
      responses:
        200:
          description: Route created
          schema:
            $ref: '#/definitions/RouteWrapper'
        400:
          description: Invalid route due to parameters being missing or invalid.
          schema:
            $ref: '#/definitions/Error'
        409:
          description: Route already exists.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'

    get:
      summary: Get route list by app name.
      description: This will list routes for a particular app.
      tags:
        - Routes
      parameters:
        - name: app
          in: path
          description: Name of app for this set of routes.
          required: true
          type: string
      responses:
        200:
          description: Route information
          schema:
            $ref: '#/definitions/RoutesWrapper'
        404:
          description: App does not exist.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'

  /apps/{app}/routes/{route}:
    put:
      summary: Create a Route if it does not exist. Update if it does. Will also create app if it does not exist. Put does not skip validation of zero values
      description: Update or Create a route
      tags:
        - Routes
      parameters:
        - name: app
          in: path
          description: name of the app.
          required: true
          type: string
        - name: route
          in: path
          description: route path.
          required: true
          type: string
        - name: body
          in: body
          description: One route to post.
          required: true
          schema:
            $ref: '#/definitions/RouteWrapper'
      responses:
        200:
          description: Route created or updated
          schema:
            $ref: '#/definitions/RouteWrapper'
        400:
          description: Invalid route due to parameters being missing or invalid.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'
    patch:
      summary: Update a Route, Fails if the route or app does not exist. Accepts partial updates / skips validation of zero values.
      description: Update a route
      tags:
        - Routes
      parameters:
        - name: app
          in: path
          description: name of the app.
          required: true
          type: string
        - name: route
          in: path
          description: route path.
          required: true
          type: string
        - name: body
          in: body
          description: One route to post.
          required: true
          schema:
            $ref: '#/definitions/RouteWrapper'
      responses:
        200:
          description: Route updated
          schema:
            $ref: '#/definitions/RouteWrapper'
        400:
          description: Invalid route due to parameters being missing or invalid.
          schema:
            $ref: '#/definitions/Error'
        404:
          description: App / Route does not exist.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'
    get:
      summary: Gets route by name
      description: Gets a route by name.
      tags:
        - Routes
      parameters:
        - name: app
          in: path
          description: Name of app for this set of routes.
          required: true
          type: string
        - name: route
          in: path
          description: Route name
          required: true
          type: string
      responses:
        200:
          description: Route information
          schema:
            $ref: '#/definitions/RouteWrapper'
        404:
          description: Route does not exist.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'

    delete:
      summary: Deletes the route
      tags:
        - Routes
      description: Deletes the route.
      parameters:
        - name: app
          in: path
          description: Name of app for this set of routes.
          required: true
          type: string
        - name: route
          in: path
          description: Route name
          required: true
          type: string
      responses:
        200:
          description: Route successfully deleted.
        404:
          description: Route does not exist.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'

  /calls/{call}/log:
    get:
      summary: Get call logs
      description: Get call logs
      tags:
        - Call
        - Log
      parameters:
        - name: call
          description: Call ID.
          required: true
          type: string
          in: path
      responses:
        200:
          description: Log found
          schema:
            $ref:  '#/definitions/LogWrapper'
        404:
          description: Log not found.
          schema:
            $ref: '#/definitions/Error'
    delete:
      summary: Delete call log entry
      description: Delete call log entry
      tags:
         - Call
         - Log
      parameters:
        - name: call
          description: Call ID.
          required: true
          type: string
          in: path
      responses:
        202:
          description: Log delete request accepted
        404:
          description: Does not exist.
          schema:
            $ref: '#/definitions/Error'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'

  /calls/{call}:
    get:
      summary: Get call information
      description: Get call information
      tags:
        - Call
      parameters:
        - name: call
          description: Call ID.
          required: true
          type: string
          in: path
      responses:
        200:
          description: Call found
          schema:
            $ref:  '#/definitions/CallWrapper'
        404:
          description: Call not found.
          schema:
            $ref: '#/definitions/Error'

  /apps/{app}/calls/{route}:
    get:
      summary: Get route-bound calls.
      description: Get route-bound calls.
      tags:
        - Call
      parameters:
        - name: app
          description: App name.
          required: true
          type: string
          in: path
        - name: route
          description: App route.
          required: true
          type: string
          in: path
      responses:
        200:
          description: Calls found
          schema:
            $ref:  '#/definitions/CallsWrapper'
        404:
          description: Calls not found.
          schema:
            $ref: '#/definitions/Error'

  /tasks:
    get:
      summary: Get next task.
      description: Gets the next task in the queue, ready for processing. Consumers should start processing tasks in order. No other consumer can retrieve this task.
      tags:
        - Tasks
      responses:
        200:
          description: Task information
          schema:
            $ref:  '#/definitions/TaskWrapper'
        default:
          description: Unexpected error
          schema:
            $ref: '#/definitions/Error'


definitions:
  Route:
    type: object
    properties:
      path:
        type: string
        description: URL path that will be matched to this route
        readOnly: true
      image:
        description: Name of Docker image to use in this route. You should include the image tag, which should be a version number, to be more accurate. Can be overridden on a per route basis with route.image.
        type: string
      headers:
        type: object
        description: Map of http headers that will be sent with the response
        additionalProperties:
          type: array
          items:
            type: string
      memory:
        type: integer
        format: int64
        description: Max usable memory for this route (MiB).
      type:
        enum:
          - sync
          - async
        description: Route type
        type: string
      format:
        enum:
          - default
          - http
          - json
        description: Payload format sent into function.
        type: string
      config:
        type: object
        description: Route configuration - overrides application configuration
        additionalProperties:
          type: string
      timeout:
        type: integer
        default: 30
        format: int32
        description: Timeout for executions of this route. Value in Seconds
      idle_timeout:
        type: integer
        default: 30
        format: int32
        description: Hot functions idle timeout before termination. Value in Seconds

  App:
    type: object
    properties:
      name:
        type: string
        description: "Name of this app. Must be different than the image name. Can ony contain alphanumeric, -, and _."
        readOnly: true
      config:
        type: object
        description: Application configuration
        additionalProperties:
          type: string

  Version:
    type: object
    properties:
      version:
        type: string
        readOnly: true

  RoutesWrapper:
    type: object
    required:
      - routes
    properties:
      routes:
        type: array
        items:
          $ref: '#/definitions/Route'
      error:
        $ref: '#/definitions/ErrorBody'

  RouteWrapper:
    type: object
    required:
      - route
    properties:
      message:
        type: string
      error:
        $ref: '#/definitions/ErrorBody'
      route:
        $ref: '#/definitions/Route'

  AppsWrapper:
    type: object
    required:
      - apps
    properties:
      apps:
        type: array
        items:
          $ref: '#/definitions/App'
      error:
        $ref: '#/definitions/ErrorBody'

  AppWrapper:
    type: object
    required:
      - app
    properties:
      app:
        $ref: '#/definitions/App'
      error:
        $ref: '#/definitions/ErrorBody'

  CallsWrapper:
    type: object
    required:
      - calls
    properties:
      calls:
        type: array
        items:
          $ref: '#/definitions/Call'
      error:
        $ref: '#/definitions/ErrorBody'

  CallWrapper:
    type: object
    required:
      - call
    properties:
      call:
        $ref: '#/definitions/Call'
        description: "Call object."


  LogWrapper:
    type: object
    required:
      - log
    properties:
      log:
        $ref: '#/definitions/Log'
        description: "Call log entry."

  Log:
    type: object
    properties:
      call_id:
        type: string
        description: Call UUID ID
      log:
        type: string # maybe bytes, long logs wouldn't fit into string type

  Call:
    type: object
    properties:
      id:
        type: string
        description: Call UUID ID.
        readOnly: true
      status:
        type: string
        description: Call execution status.
        readOnly: true
      app_name:
        type: string
        description: App name that is assigned to a route that is being executed.
        readOnly: true
      path:
        type: string
        description: App route that is being executed.
        readOnly: true
      created_at:
        type: string
        format: date-time
        description: Time when call was submitted. Always in UTC.
        readOnly: true
      started_at:
        type: string
        format: date-time
        description: Time when call started execution. Always in UTC.
        readOnly: true
      completed_at:
        type: string
        format: date-time
        description: Time when call completed, whether it was successul or failed. Always in UTC.
        readOnly: true

  Task:
    type: object
    required:
      - image
    properties:
      image:
        type: string
        description: Name of Docker image to use. This is optional and can be used to override the image defined at the group level.
      payload:
        type: string
        # 256k
        # maxLength breaks ruby generator too: https://github.com/treeder/worker_ruby/blob/0aa9236ce5060af3f15758937712973f80dd54fe/lib/iron_titan/models/task.rb#L272
        # maxLength: 268435456
        description: Payload for the task. This is what you pass into each task to make it do something.
      group_name:
        type: string
        description: "Group this task belongs to."
        readOnly: true
      error:
        type: string
        description: "The error message, if status is 'error'. This is errors due to things outside the task itself. Errors from user code will be found in the log."
      reason:
        type: string
        description: |
          Machine usable reason for task being in this state.
          Valid values for error status are `timeout | killed | bad_exit`.
          Valid values for cancelled status are `client_request`.
          For everything else, this is undefined.
        enum:
          - timeout
          - killed
          - bad_exit
          - client_request
      created_at:
        type: string
        format: date-time
        description: Time when task was submitted. Always in UTC.
        readOnly: true
      started_at:
        type: string
        format: date-time
        description: Time when task started execution. Always in UTC.
      completed_at:
        type: string
        format: date-time
        description: Time when task completed, whether it was successul or failed. Always in UTC.
      # We maintain a doubly linked list of the retried task to the
      # original task.
      retry_of:
        type: string
        description: If this field is set, then this task is a retry of the ID in this field.
        readOnly: true
      retry_at:
        type: string
        description: If this field is set, then this task was retried by the task referenced in this field.
        readOnly: true
      env_vars:
        # this is a map: https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#model-with-mapdictionary-properties
        type: object
        description: Env vars for the task. Comes from the ones set on the Group.
        additionalProperties:
          type: string

  ErrorBody:
    type: object
    properties:
      message:
        type: string
        readOnly: true
      fields:
        type: string
        readOnly: true

  Error:
    type: object
    properties:
      error:
        $ref: '#/definitions/ErrorBody'

  TaskWrapper:
    type: object
    required:
      - task
    properties:
      task:
        $ref: '#/definitions/Task'