// Copyright 2015 go-swagger maintainers
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package codescan

import (
	goparser "go/parser"
	"go/token"
	"testing"

	"github.com/go-openapi/spec"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestSetInfoVersion(t *testing.T) {
	info := new(spec.Swagger)
	err := setInfoVersion(info, []string{"0.0.1"})
	assert.NoError(t, err)
	assert.Equal(t, "0.0.1", info.Info.Version)
}

func TestSetInfoLicense(t *testing.T) {
	info := new(spec.Swagger)
	err := setInfoLicense(info, []string{"MIT http://license.org/MIT"})
	assert.NoError(t, err)
	assert.Equal(t, "MIT", info.Info.License.Name)
	assert.Equal(t, "http://license.org/MIT", info.Info.License.URL)
}

func TestSetInfoContact(t *testing.T) {
	info := new(spec.Swagger)
	err := setInfoContact(info, []string{"Homer J. Simpson <homer@simpsons.com> http://simpsons.com"})
	assert.NoError(t, err)
	assert.Equal(t, "Homer J. Simpson", info.Info.Contact.Name)
	assert.Equal(t, "homer@simpsons.com", info.Info.Contact.Email)
	assert.Equal(t, "http://simpsons.com", info.Info.Contact.URL)
}

func TestParseInfo(t *testing.T) {
	swspec := new(spec.Swagger)
	parser := newMetaParser(swspec)
	docFile := "../fixtures/goparsing/classification/doc.go"
	fileSet := token.NewFileSet()
	fileTree, err := goparser.ParseFile(fileSet, docFile, nil, goparser.ParseComments)
	if err != nil {
		t.FailNow()
	}

	err = parser.Parse(fileTree.Doc)

	assert.NoError(t, err)
	verifyInfo(t, swspec.Info)
}

func TestParseSwagger(t *testing.T) {
	swspec := new(spec.Swagger)
	parser := newMetaParser(swspec)
	docFile := "../fixtures/goparsing/classification/doc.go"
	fileSet := token.NewFileSet()
	fileTree, err := goparser.ParseFile(fileSet, docFile, nil, goparser.ParseComments)
	if err != nil {
		t.FailNow()
	}

	err = parser.Parse(fileTree.Doc)
	verifyMeta(t, swspec)

	assert.NoError(t, err)
}

func verifyMeta(t testing.TB, doc *spec.Swagger) {
	assert.NotNil(t, doc)
	verifyInfo(t, doc.Info)
	assert.EqualValues(t, []string{"application/json", "application/xml"}, doc.Consumes)
	assert.EqualValues(t, []string{"application/json", "application/xml"}, doc.Produces)
	assert.EqualValues(t, []string{"http", "https"}, doc.Schemes)
	assert.EqualValues(t, []map[string][]string{{"api_key": {}}}, doc.Security)
	expectedSecuritySchemaKey := spec.SecurityScheme{
		SecuritySchemeProps: spec.SecuritySchemeProps{
			Type: "apiKey",
			In:   "header",
			Name: "KEY",
		},
	}
	expectedSecuritySchemaOAuth := spec.SecurityScheme{
		SecuritySchemeProps: spec.SecuritySchemeProps{
			Type:             "oauth2",
			In:               "header",
			AuthorizationURL: "/oauth2/auth",
			TokenURL:         "/oauth2/token",
			Flow:             "accessCode",
			Scopes: map[string]string{
				"bla1": "foo1",
				"bla2": "foo2",
			},
		},
	}
	expectedExtensions := spec.Extensions{
		"x-meta-array": []interface{}{
			"value1",
			"value2",
		},
		"x-meta-array-obj": []interface{}{
			map[string]interface{}{
				"name":  "obj",
				"value": "field",
			},
		},
		"x-meta-value": "value",
	}
	expectedInfoExtensions := spec.Extensions{
		"x-info-array": []interface{}{
			"value1",
			"value2",
		},
		"x-info-array-obj": []interface{}{
			map[string]interface{}{
				"name":  "obj",
				"value": "field",
			},
		},
		"x-info-value": "value",
	}
	assert.NotNil(t, doc.SecurityDefinitions["api_key"])
	assert.NotNil(t, doc.SecurityDefinitions["oauth2"])
	assert.EqualValues(t, spec.SecurityDefinitions{"api_key": &expectedSecuritySchemaKey, "oauth2": &expectedSecuritySchemaOAuth}, doc.SecurityDefinitions)
	assert.EqualValues(t, expectedExtensions, doc.Extensions)
	assert.EqualValues(t, expectedInfoExtensions, doc.Info.Extensions)
	assert.Equal(t, "localhost", doc.Host)
	assert.Equal(t, "/v2", doc.BasePath)

}

func verifyInfo(t testing.TB, info *spec.Info) {
	assert.NotNil(t, info)
	assert.Equal(t, "0.0.1", info.Version)
	assert.Equal(t, "there are no TOS at this moment, use at your own risk we take no responsibility", info.TermsOfService)
	assert.Equal(t, "Petstore API.", info.Title)
	descr := `the purpose of this application is to provide an application
that is using plain go code to define an API

This should demonstrate all the possible comment annotations
that are available to turn go code into a fully compliant swagger 2.0 spec`
	assert.Equal(t, descr, info.Description)

	require.NotNil(t, info.License)
	assert.Equal(t, "MIT", info.License.Name)
	assert.Equal(t, "http://opensource.org/licenses/MIT", info.License.URL)

	require.NotNil(t, info.Contact)
	assert.Equal(t, "John Doe", info.Contact.Name)
	assert.Equal(t, "john.doe@example.com", info.Contact.Email)
	assert.Equal(t, "http://john.doe.com", info.Contact.URL)
}

func TestMoreParseMeta(t *testing.T) {
	for _, docFile := range []string{
		"../fixtures/goparsing/meta/v1/doc.go",
		"../fixtures/goparsing/meta/v2/doc.go",
		"../fixtures/goparsing/meta/v3/doc.go",
		"../fixtures/goparsing/meta/v4/doc.go",
	} {

		swspec := new(spec.Swagger)
		parser := newMetaParser(swspec)
		fileSet := token.NewFileSet()
		fileTree, err := goparser.ParseFile(fileSet, docFile, nil, goparser.ParseComments)
		if err != nil {
			t.FailNow()
		}

		err = parser.Parse(fileTree.Doc)
		assert.NoError(t, err)
		assert.Equal(t, "there are no TOS at this moment, use at your own risk we take no responsibility", swspec.Info.TermsOfService)
		/*
			jazon, err := json.MarshalIndent(swspec.Info, "", " ")
			require.NoError(t, err)
			t.Logf("%v", string(jazon))
		*/
	}
}
