extends: spectral:oas

rules:

  # ── Microsoft Graph Server Validation ────────────────────────────────────────

  ad-graph-server-url:
    description: Microsoft Graph APIs must use graph.microsoft.com as the server URL
    message: "Server URL must be graph.microsoft.com/v1.0 or graph.microsoft.com/beta"
    severity: error
    given: "$.servers[*].url"
    then:
      function: pattern
      functionOptions:
        match: "^https://graph\\.microsoft\\.com/(v1\\.0|beta)$"

  ad-https-only:
    description: All Microsoft Graph servers must use HTTPS
    message: "Server URL must use HTTPS"
    severity: error
    given: "$.servers[*].url"
    then:
      function: pattern
      functionOptions:
        match: "^https://"

  # ── Operation Summary and Description ────────────────────────────────────────

  ad-operation-summary-required:
    description: Every operation must have a non-empty summary
    message: "Operation '{{path}}' must have a summary"
    severity: error
    given: "$.paths[*][get,post,patch,put,delete]"
    then:
      field: summary
      function: truthy

  ad-operation-summary-title-case:
    description: Operation summaries must use Title Case (each word capitalized)
    message: "Operation summary '{{value}}' must use Title Case"
    severity: warn
    given: "$.paths[*][get,post,patch,put,delete].summary"
    then:
      function: pattern
      functionOptions:
        match: "^[A-Z][a-zA-Z0-9]*([ ][A-Z][a-zA-Z0-9]*)*$"

  ad-operation-summary-prefix:
    description: Operation summaries must be prefixed with 'Active Directory'
    message: "Operation summary must start with 'Active Directory'"
    severity: warn
    given: "$.paths[*][get,post,patch,put,delete].summary"
    then:
      function: pattern
      functionOptions:
        match: "^Active Directory "

  ad-operation-description-required:
    description: Every operation should have a detailed description
    message: "Operation '{{path}}' should have a description"
    severity: warn
    given: "$.paths[*][get,post,patch,put,delete]"
    then:
      field: description
      function: truthy

  ad-operation-id-required:
    description: Every operation must have an operationId
    message: "Operation '{{path}}' must have an operationId"
    severity: error
    given: "$.paths[*][get,post,patch,put,delete]"
    then:
      field: operationId
      function: truthy

  ad-operation-id-kebab-case:
    description: Operation IDs must use kebab-case
    message: "operationId '{{value}}' must use kebab-case"
    severity: warn
    given: "$.paths[*][get,post,patch,put,delete].operationId"
    then:
      function: pattern
      functionOptions:
        match: "^[a-z][a-z0-9]*(-[a-z0-9]+)*$"

  # ── Tags ─────────────────────────────────────────────────────────────────────

  ad-operation-tags-required:
    description: Every operation must have at least one tag
    message: "Operation '{{path}}' must define at least one tag"
    severity: warn
    given: "$.paths[*][get,post,patch,put,delete]"
    then:
      field: tags
      function: truthy

  ad-tags-defined:
    description: All tags used in operations must be declared in the global tags list
    message: "Tag '{{value}}' must be declared in the global tags array"
    severity: warn
    given: "$.paths[*][get,post,patch,put,delete].tags[*]"
    then:
      function: enumeration
      functionOptions:
        values:
          - Users
          - Groups
          - Members
          - Owners
          - Applications
          - Service Principals
          - App Role Assignments
          - Devices
          - Directory Roles
          - Conditional Access
          - Identity Governance
          - Identity Protection
          - Authentication Methods
          - Reports

  # ── Authentication ────────────────────────────────────────────────────────────

  ad-oauth2-security-scheme:
    description: APIs must declare an OAuth2 security scheme
    message: "Security schemes must include an OAuth2 definition"
    severity: error
    given: "$.components.securitySchemes"
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          required: [oauth2]

  ad-security-required:
    description: Every operation must declare security requirements
    message: "Operation '{{path}}' must declare OAuth2 security requirements"
    severity: error
    given: "$.paths[*][get,post,patch,put,delete]"
    then:
      field: security
      function: truthy

  # ── Responses ────────────────────────────────────────────────────────────────

  ad-get-200-response:
    description: GET operations must return a 200 response
    message: "GET operation '{{path}}' must define a 200 response"
    severity: error
    given: "$.paths[*].get"
    then:
      field: responses.200
      function: truthy

  ad-post-201-response:
    description: POST operations creating resources should return 201
    message: "POST operation '{{path}}' should define a 201 response"
    severity: warn
    given: "$.paths[*].post"
    then:
      field: responses.201
      function: truthy

  ad-delete-204-response:
    description: DELETE operations must return 204 No Content
    message: "DELETE operation '{{path}}' must return 204"
    severity: error
    given: "$.paths[*].delete"
    then:
      field: responses.204
      function: truthy

  ad-patch-204-response:
    description: PATCH operations must return 204 No Content
    message: "PATCH operation '{{path}}' must return 204"
    severity: warn
    given: "$.paths[*].patch"
    then:
      field: responses.204
      function: truthy

  ad-401-response:
    description: All operations must define a 401 Unauthorized response
    message: "Operation '{{path}}' must define a 401 response"
    severity: warn
    given: "$.paths[*][get,post,patch,put,delete]"
    then:
      field: responses.401
      function: truthy

  # ── OData Parameters ─────────────────────────────────────────────────────────

  ad-list-filter-param:
    description: List operations should support $filter OData parameter
    message: "GET collection operation '{{path}}' should have a $filter query parameter"
    severity: warn
    given: "$.paths[?(!@property.match(/{[^}]+}$/))].get"
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          required: [parameters]

  ad-list-top-param:
    description: List operations should support $top pagination parameter
    message: "GET collection operation should support $top pagination"
    severity: info
    given: "$.paths[*].get.parameters[*]"
    then:
      field: name
      function: pattern
      functionOptions:
        match: "^\\$top$|^\\$filter$|^\\$select$|^userId$|^groupId$|^applicationId$|^servicePrincipalId$|^memberId$"

  # ── Request Body ─────────────────────────────────────────────────────────────

  ad-post-request-body:
    description: POST operations must define a request body
    message: "POST operation '{{path}}' must define a request body"
    severity: error
    given: "$.paths[*].post"
    then:
      field: requestBody
      function: truthy

  ad-patch-request-body:
    description: PATCH operations must define a request body
    message: "PATCH operation '{{path}}' must define a request body"
    severity: error
    given: "$.paths[*].patch"
    then:
      field: requestBody
      function: truthy

  ad-request-body-json:
    description: Request bodies must use application/json content type
    message: "Request body must use application/json media type"
    severity: error
    given: "$.paths[*][post,patch,put].requestBody.content"
    then:
      field: "application/json"
      function: truthy

  # ── Schema Design ─────────────────────────────────────────────────────────────

  ad-schema-id-uuid:
    description: ID properties should be documented as UUID format
    message: "Property 'id' should have format: uuid"
    severity: warn
    given: "$.components.schemas[*].properties.id"
    then:
      field: format
      function: truthy

  ad-schemas-have-descriptions:
    description: All schemas must have descriptions
    message: "Schema '{{path}}' must have a description"
    severity: warn
    given: "$.components.schemas[*]"
    then:
      field: description
      function: truthy

  ad-properties-have-descriptions:
    description: Schema properties should have descriptions
    message: "Property '{{path}}' should have a description"
    severity: info
    given: "$.components.schemas[*].properties[*]"
    then:
      field: description
      function: truthy

  # ── Path Conventions ──────────────────────────────────────────────────────────

  ad-path-lowercase:
    description: API paths must use lowercase letters
    message: "Path '{{path}}' must use lowercase letters"
    severity: error
    given: "$.paths[*]~"
    then:
      function: pattern
      functionOptions:
        match: "^(/[a-z][a-zA-Z0-9${}/_-]*)+$"

  ad-path-no-trailing-slash:
    description: API paths must not end with a trailing slash
    message: "Path '{{path}}' must not end with a trailing slash"
    severity: error
    given: "$.paths[*]~"
    then:
      function: pattern
      functionOptions:
        notMatch: "/$"

  ad-path-id-parameter:
    description: Path parameters for resource IDs should use descriptive names ending in 'Id'
    message: "Path parameter '{{value}}' should end in 'Id' (e.g. userId, groupId)"
    severity: warn
    given: "$.paths[*][get,patch,delete].parameters[?(@.in=='path')].name"
    then:
      function: pattern
      functionOptions:
        match: "(Id|id)$"

  # ── Info ──────────────────────────────────────────────────────────────────────

  ad-info-contact:
    description: API info must include a contact object
    message: "API info must include a contact object"
    severity: warn
    given: "$.info"
    then:
      field: contact
      function: truthy

  ad-info-license:
    description: API info must include license information
    message: "API info must include a license object"
    severity: warn
    given: "$.info"
    then:
      field: license
      function: truthy

  ad-info-terms-of-service:
    description: API info should include terms of service URL
    message: "API info should include a termsOfService URL"
    severity: info
    given: "$.info"
    then:
      field: termsOfService
      function: truthy

  # ── Content Type ──────────────────────────────────────────────────────────────

  ad-response-json-content:
    description: Successful responses must include application/json content type
    message: "Response '{{path}}' must include application/json content"
    severity: error
    given: "$.paths[*][get,post].responses[200,201].content"
    then:
      field: "application/json"
      function: truthy

  # ── Microcks Examples ─────────────────────────────────────────────────────────

  ad-microcks-operation:
    description: Operations should include x-microcks-operation for mock generation
    message: "Operation '{{path}}' should include x-microcks-operation extension"
    severity: info
    given: "$.paths[*][get,post,patch,put,delete]"
    then:
      field: x-microcks-operation
      function: truthy