overlay: 1.0.0
info:
  title: 51offer Horizon Site API — API Evangelist enhancements
  version: 1.0.0
  description: >-
    The enhancements API Evangelist applied on top of the raw Swagger 1.2 documents 51offer serves at
    https://www.51offer.com/api-docs, expressed as an OpenAPI Overlay so they can be reviewed,
    replayed or rejected independently of the conversion itself. 51offer publishes Swagger 1.2 and
    nothing else; the OpenAPI 3.1 document these actions extend is a mechanical conversion of those
    documents, and every path, method, operationId, summary, parameter, response code and model in it
    came from the provider. This overlay adds only what the provider did NOT publish, and each action
    below says where its value was observed.
x-generated: '2026-09-05'
x-method: generated
x-extends: openapi/51offer-horizon-site-openapi.yml
extends: https://raw.githubusercontent.com/api-evangelist/51offer/refs/heads/main/openapi/51offer-horizon-site-openapi.yml
actions:
- target: $.info
  description: >-
    Provenance of the conversion. The Swagger 1.2 source carries info.title "Horizon Site APIConfig
    List", info.description "51offer官网所有开放接口清单" and info.contact "woodrow.w@51offer.com" -
    all three name 51offer, which is how ownership of this contract was settled.
  update:
    x-provenance:
      converted-from: Swagger 1.2
      source: https://www.51offer.com/api-docs
      fetched: '2026-09-05'
      documents: 24
      operations-in-source: 452
      operations-after-merge: 389
      note: >-
        63 source operations collapsed on merge because two resource documents declare the same path
        and method. Nothing was dropped from any single document.
- target: $.servers
  description: >-
    The Swagger 1.2 source declares only basePath "/" and names no host, so a base URL had to be
    established by probe rather than read. GET https://www.51offer.com/ngGpaCalc/constants returned
    HTTP 200 application/json on 2026-09-05, and https://m.51offer.com/api-docs serves the same
    documents. Note that repair-api-bases.py flags www.51offer.com as a docs host - on this provider
    that flag is a false positive: the marketing site and the API are genuinely one host.
  update:
  - url: https://www.51offer.com
    description: 51offer official site API host (verified live, HTTP 200, application/json).
  - url: https://m.51offer.com
    description: 51offer mobile-site host, serving the same Swagger 1.2 documents at /api-docs.
- target: $.components.securitySchemes
  description: >-
    Swagger 1.2 declared an empty authorizations block, so the contract asserts no authentication at
    all. The scheme added here was read off live response headers, not from documentation - 51offer
    publishes no auth documentation of any kind.
  update:
    tokenHeader:
      type: apiKey
      in: header
      name: token
      description: >-
        Session token header, evidenced by Access-Control-Allow-Headers "token, Content-Type,
        Authorization" and Access-Control-Expose-Headers "token" on live responses from
        https://www.51offer.com, 2026-09-05.
- target: $.tags
  description: >-
    Tag descriptions carried over from the resource-listing document, which describes each of the 24
    controllers in Chinese; the resource declarations themselves carry no tag metadata.
  update: []
- target: $.components.schemas
  description: >-
    Fourteen models are referenced by the provider's own Swagger 1.2 documents but never defined in
    them (AllianceActiveResult, MaterialOther, PicInfoVO, RegisterUserVO, RunwaySysUser,
    RunwaySysUserInfoSearch, RunwayUserInfo, RunwayUserInfoSearch, SignWechatCodeVO, UserDiyInfoVO,
    UsersSignSearchVO and the untyped Java List/Map generics). Rather than invent properties for
    them, each is emitted as an empty object flagged x-undefined-in-source so the reference resolves
    and the gap stays visible. Model names carrying non-ASCII generic parameters (e.g.
    HttpResult«邮件详情实体») are suffixed with a hash of the original name so a lossy sanitisation
    can never collapse two distinct models; the original is preserved in x-swagger-1-2-name.
  update: {}