openapi: 3.1.0
info:
  title: Forithmus Challenge Platform 2fa payments API
  version: 1.0.0
tags:
- name: payments
paths:
  /payments/topup:
    post:
      tags:
      - payments
      summary: Topup Credits
      description: Buy platform credits via Stripe. Amount + $0.30 processing fee.
      operationId: topup_credits_payments_topup_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TopUpRequest'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /payments/fund-pool:
    post:
      tags:
      - payments
      summary: Fund Challenge Pool
      description: 'Fund a challenge credit pool via Stripe. Admin only.

        Collections do not have pools: each challenge manages its own.'
      operationId: fund_challenge_pool_payments_fund_pool_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FundPoolRequest'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /payments/activate-challenge:
    post:
      tags:
      - payments
      summary: Activate Challenge
      description: 'Create a recurring Stripe subscription for challenge billing.

        Private: covers all storage + eval costs. Public: covers excess above platform limits.

        Only challenge admins can activate. Returns a Checkout URL for the subscription.'
      operationId: activate_challenge_payments_activate_challenge_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ActivateChallengeRequest'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /payments/checkout:
    post:
      tags:
      - payments
      summary: Create Checkout
      description: Create a Stripe Checkout Session for a submission payment.
      operationId: create_checkout_payments_checkout_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CheckoutRequest'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /payments/webhook:
    post:
      tags:
      - payments
      summary: Stripe Webhook
      description: 'Handle Stripe webhook events: payment confirmations.

        Exempt from rate limiting — Stripe sends event bursts and verifies via signature.'
      operationId: stripe_webhook_payments_webhook_post
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
  /payments/invoices:
    get:
      tags:
      - payments
      summary: List Invoices
      description: 'List the user''s invoices/receipts from Stripe with cursor pagination.


        Use starting_after=<last_invoice_id> to fetch the next page.'
      operationId: list_invoices_payments_invoices_get
      parameters:
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 100
          minimum: 1
          default: 20
          title: Limit
      - name: starting_after
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Starting After
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    TopUpRequest:
      properties:
        amount:
          type: number
          maximum: 10000.0
          minimum: 10.0
          title: Amount
      type: object
      required:
      - amount
      title: TopUpRequest
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    CheckoutRequest:
      properties:
        challenge_slug:
          type: string
          title: Challenge Slug
        phase_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Phase Id
        resource_slug:
          type: string
          title: Resource Slug
        amount:
          type: number
          exclusiveMinimum: 0.0
          title: Amount
        description:
          type: string
          title: Description
          default: ''
      type: object
      required:
      - challenge_slug
      - resource_slug
      - amount
      title: CheckoutRequest
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    ActivateChallengeRequest:
      properties:
        challenge_slug:
          type: string
          title: Challenge Slug
      type: object
      required:
      - challenge_slug
      title: ActivateChallengeRequest
    FundPoolRequest:
      properties:
        challenge_slug:
          type: string
          title: Challenge Slug
        amount:
          type: number
          maximum: 50000.0
          minimum: 100.0
          title: Amount
        num_users:
          type: integer
          maximum: 10000.0
          minimum: 1.0
          title: Num Users
          default: 100
      type: object
      required:
      - challenge_slug
      - amount
      title: FundPoolRequest
    CheckoutResponse:
      properties:
        checkout_url:
          type: string
          title: Checkout Url
        session_id:
          type: string
          title: Session Id
      type: object
      required:
      - checkout_url
      - session_id
      title: CheckoutResponse