libopenapi/what-changed/model/responses.go

// Copyright 2022 Princess B33f Heavy Industries / Dave Shanley
// SPDX-License-Identifier: MIT

package model

import (
    "github.com/pb33f/libopenapi/datamodel/low"
    "github.com/pb33f/libopenapi/datamodel/low/v2"
    "github.com/pb33f/libopenapi/datamodel/low/v3"
    "reflect"
)

// ResponsesChanges represents changes made between two Swagger or OpenAPI Responses objects.
type ResponsesChanges struct {
    *PropertyChanges
    ResponseChanges  map[string]*ResponseChanges `json:"response,omitempty" yaml:"response,omitempty"`
    DefaultChanges   *ResponseChanges            `json:"default,omitempty" yaml:"default,omitempty"`
    ExtensionChanges *ExtensionChanges           `json:"extensions,omitempty" yaml:"extensions,omitempty"`
}

// TotalChanges returns the total number of changes found between two Swagger or OpenAPI Responses objects
func (r *ResponsesChanges) TotalChanges() int {
    c := r.PropertyChanges.TotalChanges()
    for k := range r.ResponseChanges {
        c += r.ResponseChanges[k].TotalChanges()
    }
    if r.DefaultChanges != nil {
        c += r.DefaultChanges.TotalChanges()
    }
    if r.ExtensionChanges != nil {
        c += r.ExtensionChanges.TotalChanges()
    }
    return c
}

// TotalBreakingChanges returns the total number of changes found between two Swagger or OpenAPI
// Responses Objects
func (r *ResponsesChanges) TotalBreakingChanges() int {
    c := r.PropertyChanges.TotalBreakingChanges()
    for k := range r.ResponseChanges {
        c += r.ResponseChanges[k].TotalBreakingChanges()
    }
    if r.DefaultChanges != nil {
        c += r.DefaultChanges.TotalBreakingChanges()
    }
    return c
}

// CompareResponses compares a left and right Swagger or OpenAPI Responses object for any changes. If found
// returns a pointer to ResponsesChanges, or returns nil.
func CompareResponses(l, r any) *ResponsesChanges {

    var changes []*Change

    rc := new(ResponsesChanges)

    // swagger
    if reflect.TypeOf(&v2.Responses{}) == reflect.TypeOf(l) &&
        reflect.TypeOf(&v2.Responses{}) == reflect.TypeOf(r) {

        lResponses := l.(*v2.Responses)
        rResponses := r.(*v2.Responses)

        // perform hash check to avoid further processing
        if low.AreEqual(lResponses, rResponses) {
            return nil
        }

        if !lResponses.Default.IsEmpty() && !rResponses.Default.IsEmpty() {
            rc.DefaultChanges = CompareResponse(lResponses.Default.Value, rResponses.Default.Value)
        }
        if !lResponses.Default.IsEmpty() && rResponses.Default.IsEmpty() {
            CreateChange(&changes, ObjectRemoved, v3.DefaultLabel,
                lResponses.Default.ValueNode, nil, true,
                lResponses.Default.Value, nil)
        }
        if lResponses.Default.IsEmpty() && !rResponses.Default.IsEmpty() {
            CreateChange(&changes, ObjectAdded, v3.DefaultLabel,
                nil, rResponses.Default.ValueNode, false,
                nil, lResponses.Default.Value)
        }

        rc.ResponseChanges = CheckMapForChanges(lResponses.Codes, rResponses.Codes,
            &changes, v3.CodesLabel, CompareResponseV2)

        rc.ExtensionChanges = CompareExtensions(lResponses.Extensions, rResponses.Extensions)
    }

    // openapi
    if reflect.TypeOf(&v3.Responses{}) == reflect.TypeOf(l) &&
        reflect.TypeOf(&v3.Responses{}) == reflect.TypeOf(r) {

        lResponses := l.(*v3.Responses)
        rResponses := r.(*v3.Responses)

        //perform hash check to avoid further processing
        if low.AreEqual(lResponses, rResponses) {
            return nil
        }

        if !lResponses.Default.IsEmpty() && !rResponses.Default.IsEmpty() {
            rc.DefaultChanges = CompareResponse(lResponses.Default.Value, rResponses.Default.Value)
        }
        if !lResponses.Default.IsEmpty() && rResponses.Default.IsEmpty() {
            CreateChange(&changes, ObjectRemoved, v3.DefaultLabel,
                lResponses.Default.ValueNode, nil, true,
                lResponses.Default.Value, nil)
        }
        if lResponses.Default.IsEmpty() && !rResponses.Default.IsEmpty() {
            CreateChange(&changes, ObjectAdded, v3.DefaultLabel,
                nil, rResponses.Default.ValueNode, false,
                nil, lResponses.Default.Value)
        }

        rc.ResponseChanges = CheckMapForChanges(lResponses.Codes, rResponses.Codes,
            &changes, v3.CodesLabel, CompareResponseV3)

        rc.ExtensionChanges = CompareExtensions(lResponses.Extensions, rResponses.Extensions)

    }

    rc.PropertyChanges = NewPropertyChanges(changes)
    return rc
}