openapi: 3.0.0
info:
  title: Mieux Voter
  description: >-
    An Application Programming Interface (API) for Majority Judgment (MJ)
    Polling.
  version: "1.0.1-oas3"
  termsOfService: 'https://github.com/MieuxVoter'
  contact:
    email: app@mieuxvoter.fr
servers:
  - url: 'https://api.mieuxvoter.fr/v1'
    description: 'Main (production) server'
  - url: 'https://sandboxapi.mieuxvoter.fr/v1'
    description: 'Internal staging server for testing'
paths:
  /polls:
    get:
      summary: Gets all polls.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Poll'
    post:
      summary: Creates a poll.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Poll'
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                    description: Id of the created poll.
          links:
            GetPollByPollId:
              $ref: '#/components/links/GetPollByPollId'
            SetPollByPollId:
              $ref: '#/components/links/SetPollByPollId'
            DelPollByPollId:
              $ref: '#/components/links/DelPollByPollId'
            JudgeByPollId:
              $ref: '#/components/links/JudgeByPollId'
            ResultsByPollId:
              $ref: '#/components/links/ResultsByPollId'
        '400':
          description: Bad Request. Expect at least 2 candidates and a title.
  '/polls/{pollId}':
    parameters:
      - in: path
        name: pollId
        required: true
        schema:
          type: integer
          format: int64
    get:
      summary: Gets a poll by ID
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Poll'
        '404':
            $ref: '#/components/responses/PollNotFound'
    patch:
      summary: Updates a poll
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Poll'
      security:
        - {}
        - pollAuth: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Poll'
    delete:
      summary: Deletes a poll
      responses:
        '200':
          description: OK
        '404':
            $ref: '#/components/responses/PollNotFound'
      security:
        - {}
        - pollAuth: []
  '/judgments/{pollId}':
    parameters:
      - in: path
        name: pollId
        required: true
        schema:
          type: string
    post:
      summary: Creates a judgment
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Judgment'
      security:
        - {}
        - judgeAuth: []
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                    description: Id of the created judgment.
          links:
            GetJudgmentByJudgmentId:
              $ref: '#/components/links/GetJudgmentByJudgmentId'
            DelJudgmentByJudgmentId:
              $ref: '#/components/links/DelJudgmentByJudgmentId'
  '/judgments/{judgmentId}':
    parameters:
      - in: path
        name: judgmentId
        required: true
        schema:
          type: string
    get:
      summary: Gets a judgment by ID
      responses:
        '200':
          description: A judgment object
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Judgment'
    delete:
      summary: Deletes a judgment
      responses:
        '200':
          description: OK
        '404':
            description: Judgment not found
      security:
        - {}
        - judgeAuth: []
  '/invites/{pollId}':
    parameters:
      - in: path
        name: pollId
        required: true
        schema:
          type: string
    post: 
      description: Invite a judge to a poll
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Invite'
      responses:
        '200':
          description: Invitation was sent
          content:
            text/plain:
              schema:
                type: string
        '404':
          $ref: '#/components/responses/PollNotFound'
  '/results/{pollId}':
    parameters:
      - in: path
        name: pollId
        required: true
        schema:
          type: string
    get:
      description: Get results of a poll
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/Result'
        '404':
          $ref: '#/components/responses/PollNotFound'
components:
  responses:
    PollNotFound:
      description: The specified poll was not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Unauthorized
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Grade:
      type: object
      properties:
        id:
          type: string
          readOnly: true
        name:
          type: string
          description: Unique but short name of the grade, like "Excellent" or "To reject".
    Judgment:
      type: object
      properties:
        id:
          type: string
          readOnly: true
        grade:
          type: string
    Candidate:
      type: object
      properties:
        id:
          type: string
          readOnly: true
        name:
          type: string
          description: Unique but short name of the candidate.
        judgments:
          type: array
          items:
            $ref: '#/components/schemas/Judgment'
          description: The judgments received by this candidate.
    Poll:
      type: object
      properties:
        id:
          type: string
          readOnly: true
        title:
          type: string
          description: 'As <title>, I find these candidates:'
        candidates:
          type: array
          minItems: 2
          maxItems: 20
          items:
            $ref: '#/components/schemas/Candidate'
          description: The candidates being judged in a poll.
        grades:
          type: array
          items:
            $ref: '#/components/schemas/Grade'
          description: The grades on which one judges a candidate.
    Invite:
      type: object
      properties:
        type:
          type: string
        payload:
          type: string
    Result:
      type: object
      properties:
        poll:
          $ref: '#/components/schemas/Poll'
        ranking:
          type: array
          items:
            type: integer
            format: int16
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
      required:
        - code
        - message
  securitySchemes:
    judgeAuth:
      type: http
      scheme: bearer
    pollAuth:
      type: http
      scheme: bearer
    resultAuth:
      type: http
      scheme: bearer
  links:
    ResultsByPollId:
      operationRef: '#/paths/~1results/~1{pollId}/get'
      parameters:
        pollId: '$response.body#/id'
      description: >
        The `id` value returned in the response can be used as the `pollId` parameter in GET /results/{resultId}.
    GetPollByPollId:
      operationRef: '#/paths/~1polls/~1{pollId}/get'
      parameters:
        pollId: '$response.body#/id'
      description: >
        The `id` value returned in the response can be used as the `pollId` parameter in GET /polls/{pollId}.
    SetPollByPollId:
      operationRef: '#/paths/~1polls/~1{pollId}/patch'
      parameters:
        pollId: '$response.body#/id'
      description: >
        The `id` value returned in the response can be used as the `pollId` parameter in PATCH /polls/{pollId}.
    DelPollByPollId:
      operationRef: '#/paths/~1polls/~1{pollId}/delete'
      parameters:
        pollId: '$response.body#/id'
      description: >
        The `id` value returned in the response can be used as the `pollId` parameter in DELETE /polls/{pollId}.
    GetJudgmentByJudgmentId:
      operationRef: '#/paths/~1judgments/~1{judgmentId}/get'
      parameters:
        judgmentId: '$response.body#/id'
      description: >
        The `id` value returned in the response can be used as the `judgmentId` parameter in GET /judgments/{judgmentId}.
    DelJudgmentByJudgmentId:
      operationRef: '#/paths/~1judgments/~1{judgmentId}/delete'
      parameters:
        judgmentId: '$response.body#/id'
      description: >
        The `id` value returned in the response can be used as the `judgmentId` parameter in DELETE /judgments/{judgmentId}.
    JudgeByPollId:
      operationRef: '#/paths/~1judgments/~1{pollId}/post'
      parameters:
        userId: '$response.body#/id'
      description: >
        The `id` value returned in the response can be used as the `pollId` parameter in GET /judgments/{pollId}.
    InviteByPollId:
      operationRef: '#/paths/~1invites/~1{pollId}/post'
      parameters:
        userId: '$response.body#/id'
      description: >
        The `id` value returned in the response can be used as the `pollId` parameter in GET /invites/{pollId}.