/*
 * 3DS OUTSCALE API
 *
 * Welcome to the 3DS OUTSCALE's API documentation.<br /><br />  The 3DS OUTSCALE API enables you to manage your resources in the 3DS OUTSCALE Cloud. This documentation describes the different actions available along with code examples.<br /><br />  Note that the 3DS OUTSCALE Cloud is compatible with Amazon Web Services (AWS) APIs, but some resources have different names in AWS than in the 3DS OUTSCALE API. You can find a list of the differences [here](https://wiki.outscale.net/display/EN/3DS+OUTSCALE+APIs+Reference).<br /><br />  You can also manage your resources using the [Cockpit](https://wiki.outscale.net/display/EN/About+Cockpit) web interface.
 *
 * API version: 1.2
 * Contact: support@outscale.com
 * Generated by: OpenAPI Generator (https://openapi-generator.tech)
 */

package osc

import (
	"bytes"
	"context"
	"encoding/json"
	"encoding/xml"
	"errors"
	"fmt"
	"io"
	"log"
	"mime/multipart"
	"net/http"
	"net/http/httputil"
	"net/url"
	"os"
	"path/filepath"
	"reflect"
	"regexp"
	"strconv"
	"strings"
	"time"
	"unicode/utf8"

	"golang.org/x/oauth2"
	awsv4 "github.com/aws/aws-sdk-go/aws/signer/v4"
	awscredentials "github.com/aws/aws-sdk-go/aws/credentials"
)

var (
	jsonCheck = regexp.MustCompile(`(?i:(?:application|text)/(?:vnd\.[^;]+\+)?json)`)
	xmlCheck  = regexp.MustCompile(`(?i:(?:application|text)/xml)`)
)

// APIClient manages communication with the 3DS OUTSCALE API API v1.2
// In most cases there should be only one, shared, APIClient.
type APIClient struct {
	cfg    *Configuration
	common service // Reuse a single struct instead of allocating one for each service on the heap.

	// API Services

	AccessKeyApi *AccessKeyApiService

	AccountApi *AccountApiService

	ApiLogApi *ApiLogApiService

	ClientGatewayApi *ClientGatewayApiService

	DefaultApi *DefaultApiService

	DhcpOptionApi *DhcpOptionApiService

	DirectLinkApi *DirectLinkApiService

	DirectLinkInterfaceApi *DirectLinkInterfaceApiService

	FlexibleGpuApi *FlexibleGpuApiService

	ImageApi *ImageApiService

	InternetServiceApi *InternetServiceApiService

	KeypairApi *KeypairApiService

	ListenerApi *ListenerApiService

	LoadBalancerApi *LoadBalancerApiService

	LoadBalancerPolicyApi *LoadBalancerPolicyApiService

	LocationApi *LocationApiService

	NatServiceApi *NatServiceApiService

	NetApi *NetApiService

	NetAccessPointApi *NetAccessPointApiService

	NetPeeringApi *NetPeeringApiService

	NicApi *NicApiService

	ProductTypeApi *ProductTypeApiService

	PublicIpApi *PublicIpApiService

	QuotaApi *QuotaApiService

	RegionApi *RegionApiService

	RouteApi *RouteApiService

	RouteTableApi *RouteTableApiService

	SecurityGroupApi *SecurityGroupApiService

	SecurityGroupRuleApi *SecurityGroupRuleApiService

	ServerCertificateApi *ServerCertificateApiService

	SnapshotApi *SnapshotApiService

	SubnetApi *SubnetApiService

	SubregionApi *SubregionApiService

	TagApi *TagApiService

	TaskApi *TaskApiService

	VirtualGatewayApi *VirtualGatewayApiService

	VmApi *VmApiService

	VolumeApi *VolumeApiService

	VpnConnectionApi *VpnConnectionApiService
}

type service struct {
	client *APIClient
}

// NewAPIClient creates a new API client. Requires a userAgent string describing your application.
// optionally a custom http.Client to allow for advanced features such as caching.
func NewAPIClient(cfg *Configuration) *APIClient {
	if cfg.HTTPClient == nil {
		cfg.HTTPClient = http.DefaultClient
	}

	c := &APIClient{}
	c.cfg = cfg
	c.common.client = c

	// API Services
	c.AccessKeyApi = (*AccessKeyApiService)(&c.common)
	c.AccountApi = (*AccountApiService)(&c.common)
	c.ApiLogApi = (*ApiLogApiService)(&c.common)
	c.ClientGatewayApi = (*ClientGatewayApiService)(&c.common)
	c.DefaultApi = (*DefaultApiService)(&c.common)
	c.DhcpOptionApi = (*DhcpOptionApiService)(&c.common)
	c.DirectLinkApi = (*DirectLinkApiService)(&c.common)
	c.DirectLinkInterfaceApi = (*DirectLinkInterfaceApiService)(&c.common)
	c.FlexibleGpuApi = (*FlexibleGpuApiService)(&c.common)
	c.ImageApi = (*ImageApiService)(&c.common)
	c.InternetServiceApi = (*InternetServiceApiService)(&c.common)
	c.KeypairApi = (*KeypairApiService)(&c.common)
	c.ListenerApi = (*ListenerApiService)(&c.common)
	c.LoadBalancerApi = (*LoadBalancerApiService)(&c.common)
	c.LoadBalancerPolicyApi = (*LoadBalancerPolicyApiService)(&c.common)
	c.LocationApi = (*LocationApiService)(&c.common)
	c.NatServiceApi = (*NatServiceApiService)(&c.common)
	c.NetApi = (*NetApiService)(&c.common)
	c.NetAccessPointApi = (*NetAccessPointApiService)(&c.common)
	c.NetPeeringApi = (*NetPeeringApiService)(&c.common)
	c.NicApi = (*NicApiService)(&c.common)
	c.ProductTypeApi = (*ProductTypeApiService)(&c.common)
	c.PublicIpApi = (*PublicIpApiService)(&c.common)
	c.QuotaApi = (*QuotaApiService)(&c.common)
	c.RegionApi = (*RegionApiService)(&c.common)
	c.RouteApi = (*RouteApiService)(&c.common)
	c.RouteTableApi = (*RouteTableApiService)(&c.common)
	c.SecurityGroupApi = (*SecurityGroupApiService)(&c.common)
	c.SecurityGroupRuleApi = (*SecurityGroupRuleApiService)(&c.common)
	c.ServerCertificateApi = (*ServerCertificateApiService)(&c.common)
	c.SnapshotApi = (*SnapshotApiService)(&c.common)
	c.SubnetApi = (*SubnetApiService)(&c.common)
	c.SubregionApi = (*SubregionApiService)(&c.common)
	c.TagApi = (*TagApiService)(&c.common)
	c.TaskApi = (*TaskApiService)(&c.common)
	c.VirtualGatewayApi = (*VirtualGatewayApiService)(&c.common)
	c.VmApi = (*VmApiService)(&c.common)
	c.VolumeApi = (*VolumeApiService)(&c.common)
	c.VpnConnectionApi = (*VpnConnectionApiService)(&c.common)

	return c
}

func atoi(in string) (int, error) {
	return strconv.Atoi(in)
}

// selectHeaderContentType select a content type from the available list.
func selectHeaderContentType(contentTypes []string) string {
	if len(contentTypes) == 0 {
		return ""
	}
	if contains(contentTypes, "application/json") {
		return "application/json"
	}
	return contentTypes[0] // use the first content type specified in 'consumes'
}

// selectHeaderAccept join all accept types and return
func selectHeaderAccept(accepts []string) string {
	if len(accepts) == 0 {
		return ""
	}

	if contains(accepts, "application/json") {
		return "application/json"
	}

	return strings.Join(accepts, ",")
}

// contains is a case insenstive match, finding needle in a haystack
func contains(haystack []string, needle string) bool {
	for _, a := range haystack {
		if strings.ToLower(a) == strings.ToLower(needle) {
			return true
		}
	}
	return false
}

// Verify optional parameters are of the correct type.
func typeCheckParameter(obj interface{}, expected string, name string) error {
	// Make sure there is an object.
	if obj == nil {
		return nil
	}

	// Check the type is as expected.
	if reflect.TypeOf(obj).String() != expected {
		return fmt.Errorf("Expected %s to be of type %s but received %s.", name, expected, reflect.TypeOf(obj).String())
	}
	return nil
}

// parameterToString convert interface{} parameters to string, using a delimiter if format is provided.
func parameterToString(obj interface{}, collectionFormat string) string {
	var delimiter string

	switch collectionFormat {
	case "pipes":
		delimiter = "|"
	case "ssv":
		delimiter = " "
	case "tsv":
		delimiter = "\t"
	case "csv":
		delimiter = ","
	}

	if reflect.TypeOf(obj).Kind() == reflect.Slice {
		return strings.Trim(strings.Replace(fmt.Sprint(obj), " ", delimiter, -1), "[]")
	} else if t, ok := obj.(time.Time); ok {
		return t.Format(time.RFC3339)
	}

	return fmt.Sprintf("%v", obj)
}

// helper for converting interface{} parameters to json strings
func parameterToJson(obj interface{}) (string, error) {
	jsonBuf, err := json.Marshal(obj)
	if err != nil {
		return "", err
	}
	return string(jsonBuf), err
}


// callAPI do the request.
func (c *APIClient) callAPI(request *http.Request) (*http.Response, error) {
	if c.cfg.Debug {
	        dump, err := httputil.DumpRequestOut(request, true)
		if err != nil {
		        return nil, err
		}
		log.Printf("\n%s\n", string(dump))
	}

	resp, err := c.cfg.HTTPClient.Do(request)
	if err != nil {
		return resp, err
	}

	if c.cfg.Debug {
		dump, err := httputil.DumpResponse(resp, true)
		if err != nil {
			return resp, err
		}
		log.Printf("\n%s\n", string(dump))
	}

	return resp, err
}

// ChangeBasePath changes base path to allow switching to mocks
func (c *APIClient) ChangeBasePath(path string) {
	c.cfg.BasePath = path
}

// Allow modification of underlying config for alternate implementations and testing
// Caution: modifying the configuration while live can cause data races and potentially unwanted behavior
func (c *APIClient) GetConfig() *Configuration {
	return c.cfg
}

// prepareRequest build the request
func (c *APIClient) prepareRequest(
	ctx context.Context,
	path string, method string,
	postBody interface{},
	headerParams map[string]string,
	queryParams url.Values,
	formParams url.Values,
	formFileName string,
	fileName string,
	fileBytes []byte) (localVarRequest *http.Request, err error) {

	var body *bytes.Buffer

	// Detect postBody type and post.
	if postBody != nil {
		contentType := headerParams["Content-Type"]
		if contentType == "" {
			contentType = detectContentType(postBody)
			headerParams["Content-Type"] = contentType
		}

		body, err = setBody(postBody, contentType)
		if err != nil {
			return nil, err
		}
	}

	// add form parameters and file if available.
	if strings.HasPrefix(headerParams["Content-Type"], "multipart/form-data") && len(formParams) > 0 || (len(fileBytes) > 0 && fileName != "") {
		if body != nil {
			return nil, errors.New("Cannot specify postBody and multipart form at the same time.")
		}
		body = &bytes.Buffer{}
		w := multipart.NewWriter(body)

		for k, v := range formParams {
			for _, iv := range v {
				if strings.HasPrefix(k, "@") { // file
					err = addFile(w, k[1:], iv)
					if err != nil {
						return nil, err
					}
				} else { // form value
					w.WriteField(k, iv)
				}
			}
		}
		if len(fileBytes) > 0 && fileName != "" {
			w.Boundary()
			//_, fileNm := filepath.Split(fileName)
			part, err := w.CreateFormFile(formFileName, filepath.Base(fileName))
			if err != nil {
				return nil, err
			}
			_, err = part.Write(fileBytes)
			if err != nil {
				return nil, err
			}
		}

		// Set the Boundary in the Content-Type
		headerParams["Content-Type"] = w.FormDataContentType()

		// Set Content-Length
		headerParams["Content-Length"] = fmt.Sprintf("%d", body.Len())
		w.Close()
	}

	if strings.HasPrefix(headerParams["Content-Type"], "application/x-www-form-urlencoded") && len(formParams) > 0 {
		if body != nil {
			return nil, errors.New("Cannot specify postBody and x-www-form-urlencoded form at the same time.")
		}
		body = &bytes.Buffer{}
		body.WriteString(formParams.Encode())
		// Set Content-Length
		headerParams["Content-Length"] = fmt.Sprintf("%d", body.Len())
	}

	// Setup path and query parameters
	url, err := url.Parse(path)
	if err != nil {
		return nil, err
	}

	// Override request host, if applicable
	if c.cfg.Host != "" {
		url.Host = c.cfg.Host
	}

	// Override request scheme, if applicable
	if c.cfg.Scheme != "" {
		url.Scheme = c.cfg.Scheme
	}

	// Adding Query Param
	query := url.Query()
	for k, v := range queryParams {
		for _, iv := range v {
			query.Add(k, iv)
		}
	}

	// Encode the parameters.
	url.RawQuery = query.Encode()

	// Generate a new request
	if body != nil {
		localVarRequest, err = http.NewRequest(method, url.String(), body)
	} else {
		localVarRequest, err = http.NewRequest(method, url.String(), nil)
	}
	if err != nil {
		return nil, err
	}

	// add header parameters, if any
	if len(headerParams) > 0 {
		headers := http.Header{}
		for h, v := range headerParams {
			headers.Set(h, v)
		}
		localVarRequest.Header = headers
	}

	// Add the user agent to the request.
	localVarRequest.Header.Add("User-Agent", c.cfg.UserAgent)

	if ctx != nil {
		// add context to the request
		localVarRequest = localVarRequest.WithContext(ctx)

		// Walk through any authentication.

		// OAuth2 authentication
		if tok, ok := ctx.Value(ContextOAuth2).(oauth2.TokenSource); ok {
			// We were able to grab an oauth2 token from the context
			var latestToken *oauth2.Token
			if latestToken, err = tok.Token(); err != nil {
				return nil, err
			}

			latestToken.SetAuthHeader(localVarRequest)
		}

		// Basic HTTP Authentication
		if auth, ok := ctx.Value(ContextBasicAuth).(BasicAuth); ok {
			localVarRequest.SetBasicAuth(auth.UserName, auth.Password)
		}

		// AccessToken Authentication
		if auth, ok := ctx.Value(ContextAccessToken).(string); ok {
			localVarRequest.Header.Add("Authorization", "Bearer "+auth)
		}

		// AWS Signature v4 Authentication
		if auth, ok := ctx.Value(ContextAWSv4).(AWSv4); ok {
			creds := awscredentials.NewStaticCredentials(auth.AccessKey, auth.SecretKey, "")
			signer := awsv4.NewSigner(creds)
			var reader *strings.Reader
			if body == nil {
				reader = strings.NewReader("")
			} else {
				reader = strings.NewReader(body.String())
			}
			timestamp := time.Now()
			_, err := signer.Sign(localVarRequest, reader, "oapi", "eu-west-2", timestamp)
			if err != nil {
				return nil, err
			}
		}
	}

	for header, value := range c.cfg.DefaultHeader {
		localVarRequest.Header.Add(header, value)
	}

	return localVarRequest, nil
}

func (c *APIClient) decode(v interface{}, b []byte, contentType string) (err error) {
	if len(b) == 0 {
		return nil
	}
	if s, ok := v.(*string); ok {
		*s = string(b)
		return nil
	}
	if xmlCheck.MatchString(contentType) {
		if err = xml.Unmarshal(b, v); err != nil {
			return err
		}
		return nil
	}
	if jsonCheck.MatchString(contentType) {
		if err = json.Unmarshal(b, v); err != nil {
			return err
		}
		return nil
	}
	return errors.New("undefined response type")
}

// Add a file to the multipart request
func addFile(w *multipart.Writer, fieldName, path string) error {
	file, err := os.Open(path)
	if err != nil {
		return err
	}
	defer file.Close()

	part, err := w.CreateFormFile(fieldName, filepath.Base(path))
	if err != nil {
		return err
	}
	_, err = io.Copy(part, file)

	return err
}

// Prevent trying to import "fmt"
func reportError(format string, a ...interface{}) error {
	return fmt.Errorf(format, a...)
}

// Set request body from an interface{}
func setBody(body interface{}, contentType string) (bodyBuf *bytes.Buffer, err error) {
	if bodyBuf == nil {
		bodyBuf = &bytes.Buffer{}
	}

	if reader, ok := body.(io.Reader); ok {
		_, err = bodyBuf.ReadFrom(reader)
	} else if b, ok := body.([]byte); ok {
		_, err = bodyBuf.Write(b)
	} else if s, ok := body.(string); ok {
		_, err = bodyBuf.WriteString(s)
	} else if s, ok := body.(*string); ok {
		_, err = bodyBuf.WriteString(*s)
	} else if jsonCheck.MatchString(contentType) {
		err = json.NewEncoder(bodyBuf).Encode(body)
	} else if xmlCheck.MatchString(contentType) {
		err = xml.NewEncoder(bodyBuf).Encode(body)
	}

	if err != nil {
		return nil, err
	}

	if bodyBuf.Len() == 0 {
		err = fmt.Errorf("Invalid body type %s\n", contentType)
		return nil, err
	}
	return bodyBuf, nil
}

// detectContentType method is used to figure out `Request.Body` content type for request header
func detectContentType(body interface{}) string {
	contentType := "text/plain; charset=utf-8"
	kind := reflect.TypeOf(body).Kind()

	switch kind {
	case reflect.Struct, reflect.Map, reflect.Ptr:
		contentType = "application/json; charset=utf-8"
	case reflect.String:
		contentType = "text/plain; charset=utf-8"
	default:
		if b, ok := body.([]byte); ok {
			contentType = http.DetectContentType(b)
		} else if kind == reflect.Slice {
			contentType = "application/json; charset=utf-8"
		}
	}

	return contentType
}

// Ripped from https://github.com/gregjones/httpcache/blob/master/httpcache.go
type cacheControl map[string]string

func parseCacheControl(headers http.Header) cacheControl {
	cc := cacheControl{}
	ccHeader := headers.Get("Cache-Control")
	for _, part := range strings.Split(ccHeader, ",") {
		part = strings.Trim(part, " ")
		if part == "" {
			continue
		}
		if strings.ContainsRune(part, '=') {
			keyval := strings.Split(part, "=")
			cc[strings.Trim(keyval[0], " ")] = strings.Trim(keyval[1], ",")
		} else {
			cc[part] = ""
		}
	}
	return cc
}

// CacheExpires helper function to determine remaining time before repeating a request.
func CacheExpires(r *http.Response) time.Time {
	// Figure out when the cache expires.
	var expires time.Time
	now, err := time.Parse(time.RFC1123, r.Header.Get("date"))
	if err != nil {
		return time.Now()
	}
	respCacheControl := parseCacheControl(r.Header)

	if maxAge, ok := respCacheControl["max-age"]; ok {
		lifetime, err := time.ParseDuration(maxAge + "s")
		if err != nil {
			expires = now
		} else {
			expires = now.Add(lifetime)
		}
	} else {
		expiresHeader := r.Header.Get("Expires")
		if expiresHeader != "" {
			expires, err = time.Parse(time.RFC1123, expiresHeader)
			if err != nil {
				expires = now
			}
		}
	}
	return expires
}

func strlen(s string) int {
	return utf8.RuneCountInString(s)
}

// GenericOpenAPIError Provides access to the body, error and model on returned errors.
type GenericOpenAPIError struct {
	body  []byte
	error string
	model interface{}
}

// Error returns non-empty string if there was an error.
func (e GenericOpenAPIError) Error() string {
	return e.error
}

// Body returns the raw bytes of the response
func (e GenericOpenAPIError) Body() []byte {
	return e.body
}

// Model returns the unpacked model of the error
func (e GenericOpenAPIError) Model() interface{} {
	return e.model
}