/*
 * IONOS Object Storage API for contract-owned buckets
 *
 * ## Overview The IONOS Object Storage API for contract-owned buckets is a REST-based API that allows developers and applications to interact directly with IONOS' scalable storage solution, leveraging the S3 protocol for object storage operations. Its design ensures seamless compatibility with existing tools and libraries tailored for S3 systems.  ### API References - [S3 API Reference for contract-owned buckets](https://api.ionos.com/docs/s3-contract-owned-buckets/v2/) ### User documentation [IONOS Object Storage User Guide](https://docs.ionos.com/cloud/managed-services/s3-object-storage) * [Documentation on user-owned and contract-owned buckets](https://docs.ionos.com/cloud/managed-services/s3-object-storage/concepts/buckets) * [Documentation on S3 API Compatibility](https://docs.ionos.com/cloud/managed-services/s3-object-storage/concepts/s3-api-compatibility) * [S3 Tools](https://docs.ionos.com/cloud/managed-services/s3-object-storage/s3-tools)  ## Endpoints for contract-owned buckets | Location | Region Name | Bucket Type | Endpoint | | --- | --- | --- | --- | | **Berlin, Germany** | **eu-central-3** | Contract-owned | `https://s3.eu-central-3.ionoscloud.com` |  ## Changelog - 30.05.2024 Initial version
 *
 * API version: 2.0.2
 * Contact: support@cloud.ionos.com
 */

// Code generated by OpenAPI Generator (https://openapi-generator.tech); DO NOT EDIT.

package ionoscloud

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

var (
	JsonCheck       = regexp.MustCompile(`(?i:(?:application|text)/(?:[^;]+\+)?json)`)
	XmlCheck        = regexp.MustCompile(`(?i:(?:application|text)/(?:[^;]+\+)?xml)`)
	queryParamSplit = regexp.MustCompile(`(^|&)([^&]+)`)
	queryDescape    = strings.NewReplacer("%5B", "[", "%5D", "]")
)

// APIClient manages communication with the IONOS Object Storage API for contract-owned buckets API v2.0.2
type APIClient struct {
	cfg    *Configuration
	common service // Reuse a single struct instead of allocating one for each service on the heap.

	// API Services

	BucketsApi *BucketsApiService

	CORSApi *CORSApiService

	EncryptionApi *EncryptionApiService

	LifecycleApi *LifecycleApiService

	ObjectLockApi *ObjectLockApiService

	ObjectsApi *ObjectsApiService

	PolicyApi *PolicyApiService

	PublicAccessBlockApi *PublicAccessBlockApiService

	ReplicationApi *ReplicationApiService

	TaggingApi *TaggingApiService

	UploadsApi *UploadsApiService

	VersioningApi *VersioningApiService

	VersionsApi *VersionsApiService

	WebsiteApi *WebsiteApiService
}

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.BucketsApi = (*BucketsApiService)(&c.common)
	c.CORSApi = (*CORSApiService)(&c.common)
	c.EncryptionApi = (*EncryptionApiService)(&c.common)
	c.LifecycleApi = (*LifecycleApiService)(&c.common)
	c.ObjectLockApi = (*ObjectLockApiService)(&c.common)
	c.ObjectsApi = (*ObjectsApiService)(&c.common)
	c.PolicyApi = (*PolicyApiService)(&c.common)
	c.PublicAccessBlockApi = (*PublicAccessBlockApiService)(&c.common)
	c.ReplicationApi = (*ReplicationApiService)(&c.common)
	c.TaggingApi = (*TaggingApiService)(&c.common)
	c.UploadsApi = (*UploadsApiService)(&c.common)
	c.VersioningApi = (*VersioningApiService)(&c.common)
	c.VersionsApi = (*VersionsApiService)(&c.common)
	c.WebsiteApi = (*WebsiteApiService)(&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 insensitive match, finding needle in a haystack
func contains(haystack []string, needle string) bool {
	for _, a := range haystack {
		if strings.EqualFold(a, 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
}

func parameterValueToString(obj interface{}, key string) string {
	if reflect.TypeOf(obj).Kind() != reflect.Ptr {
		return fmt.Sprintf("%v", obj)
	}
	var param, ok = obj.(MappedNullable)
	if !ok {
		return ""
	}
	dataMap, err := param.ToMap()
	if err != nil {
		return ""
	}
	return fmt.Sprintf("%v", dataMap[key])
}

// parameterAddToHeaderOrQuery adds the provided object to the request header or url query
// supporting deep object syntax
func parameterAddToHeaderOrQuery(headerOrQueryParams interface{}, keyPrefix string, obj interface{}, collectionType string) {
	var v = reflect.ValueOf(obj)
	var value = ""
	if v == reflect.ValueOf(nil) {
		value = "null"
	} else {
		switch v.Kind() {
		case reflect.Invalid:
			value = "invalid"

		case reflect.Struct:
			if t, ok := obj.(MappedNullable); ok {
				dataMap, err := t.ToMap()
				if err != nil {
					return
				}
				parameterAddToHeaderOrQuery(headerOrQueryParams, keyPrefix, dataMap, collectionType)
				return
			}
			if t, ok := obj.(time.Time); ok {
				parameterAddToHeaderOrQuery(headerOrQueryParams, keyPrefix, t.Format(time.RFC3339Nano), collectionType)
				return
			}
			value = v.Type().String() + " value"
		case reflect.Slice:
			var indValue = reflect.ValueOf(obj)
			if indValue == reflect.ValueOf(nil) {
				return
			}
			var lenIndValue = indValue.Len()
			for i := 0; i < lenIndValue; i++ {
				var arrayValue = indValue.Index(i)
				parameterAddToHeaderOrQuery(headerOrQueryParams, keyPrefix, arrayValue.Interface(), collectionType)
			}
			return

		case reflect.Map:
			var indValue = reflect.ValueOf(obj)
			if indValue == reflect.ValueOf(nil) {
				return
			}
			iter := indValue.MapRange()
			for iter.Next() {
				k, v := iter.Key(), iter.Value()
				parameterAddToHeaderOrQuery(headerOrQueryParams, fmt.Sprintf("%s-%s", keyPrefix, k.String()), v.Interface(), collectionType)
			}
			return

		case reflect.Interface:
			fallthrough
		case reflect.Ptr:
			parameterAddToHeaderOrQuery(headerOrQueryParams, keyPrefix, v.Elem().Interface(), collectionType)
			return

		case reflect.Int, reflect.Int8, reflect.Int16,
			reflect.Int32, reflect.Int64:
			value = strconv.FormatInt(v.Int(), 10)
		case reflect.Uint, reflect.Uint8, reflect.Uint16,
			reflect.Uint32, reflect.Uint64, reflect.Uintptr:
			value = strconv.FormatUint(v.Uint(), 10)
		case reflect.Float32, reflect.Float64:
			value = strconv.FormatFloat(v.Float(), 'g', -1, 32)
		case reflect.Bool:
			value = strconv.FormatBool(v.Bool())
		case reflect.String:
			value = v.String()
		default:
			value = v.Type().String() + " value"
		}
	}

	switch valuesMap := headerOrQueryParams.(type) {
	case url.Values:
		if collectionType == "csv" && valuesMap.Get(keyPrefix) != "" {
			valuesMap.Set(keyPrefix, valuesMap.Get(keyPrefix)+","+value)
		} else {
			valuesMap.Add(keyPrefix, value)
		}
		break
	case map[string]string:
		valuesMap[keyPrefix] = value
		break
	}
}

// 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, time.Duration, error) {
	retryCount := 0

	var resp *http.Response
	var httpRequestTime time.Duration
	var err error

	for {

		retryCount++

		/* we need to clone the request with every retry time because Body closes after the request */
		var clonedRequest *http.Request = request.Clone(request.Context())
		if request.Body != nil {
			clonedRequest.Body, err = request.GetBody()
			if err != nil {
				return nil, httpRequestTime, err
			}
		}

		if c.cfg.LogLevel.Satisfies(Trace) {
			dump, err := httputil.DumpRequestOut(clonedRequest, true)
			if err == nil {
				c.cfg.Logger.Printf(" DumpRequestOut : %s\n", string(dump))
			} else {
				c.cfg.Logger.Printf(" DumpRequestOut err: %+v", err)
			}
			c.cfg.Logger.Printf("\n try no: %d\n", retryCount)
		}

		httpRequestStartTime := time.Now()
		clonedRequest.Close = true
		resp, err = c.cfg.HTTPClient.Do(clonedRequest)
		httpRequestTime = time.Since(httpRequestStartTime)
		if err != nil {
			return resp, httpRequestTime, err
		}

		if c.cfg.LogLevel.Satisfies(Trace) {
			dump, err := httputil.DumpResponse(resp, true)
			if err == nil {
				c.cfg.Logger.Printf("\n DumpResponse : %s\n", string(dump))
			} else {
				c.cfg.Logger.Printf(" DumpResponse err %+v", err)
			}
		}

		var backoffTime time.Duration

		switch resp.StatusCode {
		case http.StatusServiceUnavailable,
			http.StatusGatewayTimeout,
			http.StatusBadGateway:
			if request.Method == http.MethodPost {
				return resp, httpRequestTime, err
			}
			backoffTime = c.GetConfig().WaitTime

		case http.StatusTooManyRequests:
			if retryAfterSeconds := resp.Header.Get("Retry-After"); retryAfterSeconds != "" {
				waitTime, err := time.ParseDuration(retryAfterSeconds + "s")
				if err != nil {
					return resp, httpRequestTime, err
				}
				backoffTime = waitTime
			} else {
				backoffTime = c.GetConfig().WaitTime
			}
		default:
			return resp, httpRequestTime, err

		}

		if retryCount >= c.GetConfig().MaxRetries {
			if c.cfg.LogLevel.Satisfies(Debug) {
				c.cfg.Logger.Printf(" Number of maximum retries exceeded (%d retries)\n", c.cfg.MaxRetries)
			}
			break
		} else {
			c.backOff(request.Context(), backoffTime)
		}
	}

	return resp, httpRequestTime, err
}

func (c *APIClient) backOff(ctx context.Context, t time.Duration) {
	if t > c.GetConfig().MaxWaitTime {
		t = c.GetConfig().MaxWaitTime
	}
	if c.cfg.LogLevel.Satisfies(Debug) {
		c.cfg.Logger.Printf(" Sleeping %s before retrying request\n", t.String())
	}
	if t <= 0 {
		return
	}
	timer := time.NewTimer(t)
	defer timer.Stop()

	select {
	case <-ctx.Done():
	case <-timer.C:
	}
}

// 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
}

type formFile struct {
	fileBytes    []byte
	fileName     string
	formFileName string
}

// 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,
	formFiles []formFile) (localVarRequest *http.Request, err error) {

	var body *bytes.Buffer

	// Detect postBody type and post.
	if postBody != nil && !(reflect.ValueOf(postBody).Kind() == reflect.Ptr && reflect.ValueOf(postBody).IsNil()) {
		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(formFiles) > 0) {
		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)
				}
			}
		}
		for _, formFile := range formFiles {
			if len(formFile.fileBytes) > 0 && formFile.fileName != "" {
				w.Boundary()
				part, err := w.CreateFormFile(formFile.formFileName, filepath.Base(formFile.fileName))
				if err != nil {
					return nil, err
				}
				_, err = part.Write(formFile.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 = queryParamSplit.ReplaceAllStringFunc(query.Encode(), func(s string) string {
		pieces := strings.Split(s, "=")
		pieces[0] = queryDescape.Replace(pieces[0])
		return strings.Join(pieces, "=")
	})

	// 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[h] = []string{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.

	}

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

	if c.cfg.Middleware != nil {
		c.cfg.Middleware(localVarRequest)
	}

	if c.cfg.MiddlewareWithError != nil {
		err = c.cfg.MiddlewareWithError(localVarRequest)
		if err != nil {
			return nil, err
		}
	}

	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 f, ok := v.(*os.File); ok {
		f, err = os.CreateTemp("", "HttpClientFile")
		if err != nil {
			return
		}
		_, err = f.Write(b)
		if err != nil {
			return
		}
		_, err = f.Seek(0, io.SeekStart)
		return
	}
	if f, ok := v.(**os.File); ok {
		*f, err = os.CreateTemp("", "HttpClientFile")
		if err != nil {
			return
		}
		_, err = (*f).Write(b)
		if err != nil {
			return
		}
		_, err = (*f).Seek(0, io.SeekStart)
		return
	}
	if XmlCheck.MatchString(contentType) {
		if err = xml.Unmarshal(b, v); err != nil {
			return err
		}
		return nil
	}
	if JsonCheck.MatchString(contentType) {
		if actualObj, ok := v.(interface{ GetActualInstance() interface{} }); ok { // oneOf, anyOf schemas
			if unmarshalObj, ok := actualObj.(interface{ UnmarshalJSON([]byte) error }); ok { // make sure it has UnmarshalJSON defined
				if err = unmarshalObj.UnmarshalJSON(b); err != nil {
					return err
				}
			} else {
				return errors.New("Unknown type with GetActualInstance but no unmarshalObj.UnmarshalJSON defined")
			}
		} else if err = json.Unmarshal(b, v); err != nil { // simple model
			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(filepath.Clean(path))
	if err != nil {
		return err
	}
	err = file.Close()
	if err != nil {
		return err
	}

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

	return err
}

// 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 fp, ok := body.(*os.File); ok {
		_, err = bodyBuf.ReadFrom(fp)
	} 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) {
		var bs []byte
		bs, err = xml.Marshal(body)
		if err == nil {
			bodyBuf.Write(bs)
		}
	}

	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{}
	statusCode int
}

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

// SetError sets the error string
func (e *GenericOpenAPIError) SetError(error string) {
	e.error = error
}

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

// SetBody sets the raw body of the error
func (e *GenericOpenAPIError) SetBody(body []byte) {
	e.body = body
}

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

// SetModel sets the model of the error
func (e *GenericOpenAPIError) SetModel(model interface{}) {
	e.model = model
}

// StatusCode returns the status code of the error
func (e GenericOpenAPIError) StatusCode() int {
	return e.statusCode
}

// SetStatusCode sets the status code of the error
func (e *GenericOpenAPIError) SetStatusCode(statusCode int) {
	e.statusCode = statusCode
}

// format error message using title and detail when model implements rfc7807
func formatErrorMessage(status string, v interface{}) string {
	str := ""
	metaValue := reflect.ValueOf(v).Elem()

	if metaValue.Kind() == reflect.Struct {
		field := metaValue.FieldByName("Title")
		if field != (reflect.Value{}) {
			str = fmt.Sprintf("%s", field.Interface())
		}

		field = metaValue.FieldByName("Detail")
		if field != (reflect.Value{}) {
			str = fmt.Sprintf("%s (%s)", str, field.Interface())
		}
	}

	return strings.TrimSpace(fmt.Sprintf("%s %s", status, str))
}
