package executor import (	"bufio"	"bytes"	"context"	"encoding/json"	"errors"	"fmt"	"io"	"net/http"	"strings"	"time" 	"github.com/router-for-me/CLIProxyAPI/v7/internal/runtime/executor/helps"	"github.com/router-for-me/CLIProxyAPI/v7/internal/thinking"	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v7/sdk/cliproxy/auth"	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v7/sdk/cliproxy/executor"	sdktranslator "github.com/router-for-me/CLIProxyAPI/v7/sdk/translator"	log "github.com/sirupsen/logrus"	"github.com/tidwall/gjson"	"github.com/tidwall/sjson") // Execute performs a non-streaming request to the Antigravity API.func (e *AntigravityExecutor) Execute(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (resp cliproxyexecutor.Response, err error) {	if helps.HasResponsesCompactionItem(req.Payload) {		expanded, errExpand := helps.ExpandAntigravityCompactionCapsules(req.Payload)		if errExpand != nil {			return resp, statusErr{code: http.StatusBadRequest, msg: errExpand.Error()}		}		req.Payload = expanded		if len(opts.OriginalRequest) > 0 {			expandedOrig, errOrig := helps.ExpandAntigravityCompactionCapsules(opts.OriginalRequest)			if errOrig == nil {				opts.OriginalRequest = expandedOrig			} else {				opts.OriginalRequest = expanded			}		}	}	if opts.Alt == "responses/compact" || helps.HasResponsesCompactionTrigger(req.Payload) || helps.HasResponsesCompactionTrigger(opts.OriginalRequest) {		return e.executeCompaction(ctx, auth, req, opts)	}	baseModel := thinking.ParseSuffix(req.Model).ModelName	if !antigravityCoolingDisabled(auth, e.cfg) {		if inCooldown, remaining, errCooldown := antigravityIsInShortCooldownRequired(ctx, auth, baseModel, time.Now()); errCooldown != nil {			return resp, homeKVUnavailableStatusErr(errCooldown)		} else if inCooldown && !antigravityShouldBypassShortCooldown(ctx, e.cfg) {			log.Debugf("antigravity executor: auth %s in short cooldown for model %s (%s remaining), returning 429 to switch auth", auth.ID, baseModel, remaining)			d := remaining			return resp, statusErr{code: http.StatusTooManyRequests, msg: fmt.Sprintf("auth in short cooldown, %s remaining", remaining), retryAfter: &d}		}	} 	isClaude := strings.Contains(strings.ToLower(baseModel), "claude")	if isClaude || strings.Contains(baseModel, "gemini-3-pro") || strings.Contains(baseModel, "gemini-3.1-flash-image") {		return e.executeClaudeNonStream(ctx, auth, req, opts)	} 	reporter := helps.NewExecutorUsageReporter(ctx, e, baseModel, auth)	defer reporter.TrackFailure(ctx, &err) 	from := opts.SourceFormat	responseFormat := cliproxyexecutor.ResponseFormatOrSource(opts)	to := sdktranslator.FromString("antigravity") 	originalPayloadSource := req.Payload	if len(opts.OriginalRequest) > 0 {		originalPayloadSource = opts.OriginalRequest	}	originalPayload := originalPayloadSource	originalPayload, errValidate := validateAntigravityRequestSignatures(ctx, baseModel, from, originalPayload)	if errValidate != nil {		return resp, errValidate	}	req.Payload = originalPayload	token, updatedAuth, errToken := e.ensureAccessToken(ctx, auth)	if errToken != nil {		return resp, errToken	}	if updatedAuth != nil {		auth = updatedAuth		reporter.UpdateAccessTokenFingerprint(auth)	}	originalTranslated, translated := helps.TranslateRequestPairWithCodexMultiAgentV2(ctx, opts.Headers, e.cfg, from, to, baseModel, originalPayload, req.Payload, false) 	translated, err = helps.ApplyRequestThinking(translated, req, opts, from.String(), to.String(), e.Identifier())	if err != nil {		return resp, err	} 	requestedModel := helps.PayloadRequestedModel(opts, req.Model)	requestPath := helps.PayloadRequestPath(opts)	translated = helps.ApplyPayloadConfigWithRequest(e.cfg, baseModel, "antigravity", from.String(), "request", translated, originalTranslated, requestedModel, requestPath, opts.Headers)	translated = e.obfuscateSensitiveWords(translated)	translated = sanitizeAntigravityGeminiRequestSignatures(baseModel, translated)	reporter.SetTranslatedReasoningEffort(translated, to.String()) 	useCredits := cliproxyauth.AntigravityCreditsRequested(ctx) && antigravityCreditsRetryEnabled(e.cfg) 	baseURL := resolveAntigravityRequestBaseURL(auth)	httpClient := newAntigravityHTTPClient(ctx, e.cfg, auth, 0)	httpClient = reporter.TrackHTTPClient(httpClient)	// Credential retry rounds are owned by the conductor. Perform one upstream	// request per credential so request-retry is not consumed twice.	requestPayload := translated	if useCredits {		if cp := injectEnabledCreditTypes(translated); len(cp) > 0 {			requestPayload = cp			helps.MarkCreditsUsed(ctx)		}	}	replayScope := antigravityReasoningReplayScope{}	if antigravityUsesReasoningReplayCache(baseModel) {		var errReplay error		requestPayload, replayScope, errReplay = prepareAntigravityGeminiReasoningReplayPayload(ctx, baseModel, req, opts, requestPayload)		if errReplay != nil {			err = errReplay			return resp, err		}	}	requestPayload = ensureAntigravityGeminiBoundaryUserContent(baseModel, requestPayload) 	httpReq, errReq := e.buildRequest(ctx, auth, token, baseModel, requestPayload, false, opts.Alt, baseURL, helps.DerivedAntigravitySessionID(opts.Metadata, req.Metadata))	if errReq != nil {		err = errReq		return resp, err	} 	httpResp, errDo := httpClient.Do(httpReq)	if errDo != nil {		helps.RecordAPIResponseError(ctx, e.cfg, errDo)		if errors.Is(errDo, context.Canceled) || errors.Is(errDo, context.DeadlineExceeded) {			return resp, errDo		}		err = errDo		return resp, err	} 	helps.RecordAPIResponseMetadata(ctx, e.cfg, httpResp.StatusCode, httpResp.Header.Clone())	bodyBytes, errRead := io.ReadAll(httpResp.Body)	if errClose := httpResp.Body.Close(); errClose != nil {		log.Errorf("antigravity executor: close response body error: %v", errClose)	}	if errRead != nil {		helps.RecordAPIResponseError(ctx, e.cfg, errRead)		err = errRead		return resp, err	}	helps.AppendAPIResponseChunk(ctx, e.cfg, bodyBytes) 	if httpResp.StatusCode == http.StatusTooManyRequests {		decision := decideAntigravity429(bodyBytes)		switch decision.kind {		case antigravity429DecisionShortCooldownSwitchAuth:			closeAntigravityAuthIdleTransports(auth)			if decision.retryAfter != nil && *decision.retryAfter > 0 && !antigravityCoolingDisabled(auth, e.cfg) {				if errMarkCooldown := markAntigravityShortCooldownRequired(ctx, auth, baseModel, time.Now(), *decision.retryAfter); errMarkCooldown != nil {					err = homeKVUnavailableStatusErr(errMarkCooldown)					return resp, err				}				log.Debugf("antigravity executor: short quota cooldown (%s) for model %s, recorded cooldown", *decision.retryAfter, baseModel)			}		case antigravity429DecisionFullQuotaExhausted:			closeAntigravityAuthIdleTransports(auth)			if useCredits && antigravityHasExplicitCreditsBalanceExhaustedReason(bodyBytes) && !antigravityCoolingDisabled(auth, e.cfg) {				markAntigravityCreditsPermanentlyDisabled(auth)			}			// No credits logic - just fall through to error return below		}	} 	if httpResp.StatusCode < http.StatusOK || httpResp.StatusCode >= http.StatusMultipleChoices {		log.Debugf("antigravity executor: upstream error status: %d, body: %s", httpResp.StatusCode, helps.SummarizeErrorBody(httpResp.Header.Get("Content-Type"), bodyBytes))		if errClear := clearAntigravityReasoningReplayOnInvalidSignature(ctx, replayScope, httpResp.StatusCode, bodyBytes); errClear != nil {			// Report the upstream failure rather than the cleanup failure.			logAntigravityReasoningReplayDegraded(replayScope, "invalidate", errClear)		}		err = newAntigravityStatusErr(httpResp.StatusCode, bodyBytes)		return resp, err	} 	// Success	if useCredits {		clearAntigravityCreditsFailureState(auth)	}	cacheAntigravityReasoningReplayFromResponse(ctx, replayScope, requestPayload, bodyBytes)	bodyBytes = e.resolveWebSearchGroundingURLs(ctx, auth, from, originalPayload, translated, bodyBytes)	reporter.Publish(ctx, helps.ParseAntigravityUsage(bodyBytes))	var param any	converted := sdktranslator.TranslateNonStream(ctx, to, responseFormat, req.Model, opts.OriginalRequest, translated, bodyBytes, &param)	if responseFormat == sdktranslator.FormatOpenAIResponse {		converted = helps.EnsureResponsesUsageDetails(converted)	}	resp = cliproxyexecutor.Response{Payload: converted, Headers: httpResp.Header.Clone()}	reporter.EnsurePublished(ctx)	return resp, nil} func (e *AntigravityExecutor) executeCompaction(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (resp cliproxyexecutor.Response, err error) {	baseModel := thinking.ParseSuffix(req.Model).ModelName	payload := req.Payload	if len(payload) == 0 && len(opts.OriginalRequest) > 0 {		payload = opts.OriginalRequest	}	summaryPayload := helps.PrepareAntigravityCompactionSummaryPayload(payload, baseModel) 	summaryReq := cliproxyexecutor.Request{		Model:    req.Model,		Payload:  summaryPayload,		Metadata: req.Metadata,	}	summaryOpts := opts	summaryOpts.Alt = ""	summaryOpts.Stream = false	summaryOpts.OriginalRequest = nil	summaryOpts.SourceFormat = sdktranslator.FormatOpenAIResponse	summaryOpts.ResponseFormat = sdktranslator.FormatOpenAIResponse 	summaryResp, errSummary := e.Execute(ctx, auth, summaryReq, summaryOpts)	if errSummary != nil {		return resp, errSummary	} 	summaryText, errExtract := helps.ExtractAntigravitySummaryText(summaryResp.Payload)	if errExtract != nil {		return resp, fmt.Errorf("extract summary: %w", errExtract)	}	capsule, errSeal := helps.SealAntigravityCompaction(summaryText, baseModel)	if errSeal != nil {		return resp, fmt.Errorf("seal compaction capsule: %w", errSeal)	} 	inputTokens := int(gjson.GetBytes(summaryResp.Payload, "usage.input_tokens").Int())	outputTokens := int(gjson.GetBytes(summaryResp.Payload, "usage.output_tokens").Int())	totalTokens := int(gjson.GetBytes(summaryResp.Payload, "usage.total_tokens").Int())	if totalTokens == 0 && inputTokens == 0 {		usage := helps.ParseOpenAIUsage(summaryResp.Payload)		inputTokens = int(usage.InputTokens)		outputTokens = int(usage.OutputTokens)		totalTokens = int(usage.TotalTokens)	} 	respBytes := helps.BuildAntigravityCompactionResponse(baseModel, capsule, inputTokens, outputTokens, totalTokens)	return cliproxyexecutor.Response{		Payload: respBytes,		Headers: summaryResp.Headers,	}, nil} // executeClaudeNonStream performs a claude non-streaming request to the Antigravity API.func (e *AntigravityExecutor) executeClaudeNonStream(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (resp cliproxyexecutor.Response, err error) {	baseModel := thinking.ParseSuffix(req.Model).ModelName	if !antigravityCoolingDisabled(auth, e.cfg) {		if inCooldown, remaining, errCooldown := antigravityIsInShortCooldownRequired(ctx, auth, baseModel, time.Now()); errCooldown != nil {			return resp, homeKVUnavailableStatusErr(errCooldown)		} else if inCooldown && !antigravityShouldBypassShortCooldown(ctx, e.cfg) {			log.Debugf("antigravity executor: auth %s in short cooldown for model %s (%s remaining), returning 429 to switch auth", auth.ID, baseModel, remaining)			d := remaining			return resp, statusErr{code: http.StatusTooManyRequests, msg: fmt.Sprintf("auth in short cooldown, %s remaining", remaining), retryAfter: &d}		}	} 	reporter := helps.NewExecutorUsageReporter(ctx, e, baseModel, auth)	defer reporter.TrackFailure(ctx, &err) 	from := opts.SourceFormat	responseFormat := cliproxyexecutor.ResponseFormatOrSource(opts)	to := sdktranslator.FromString("antigravity") 	originalPayloadSource := req.Payload	if len(opts.OriginalRequest) > 0 {		originalPayloadSource = opts.OriginalRequest	}	originalPayload := originalPayloadSource	originalPayload, errValidate := validateAntigravityRequestSignatures(ctx, baseModel, from, originalPayload)	if errValidate != nil {		return resp, errValidate	}	req.Payload = originalPayload	token, updatedAuth, errToken := e.ensureAccessToken(ctx, auth)	if errToken != nil {		return resp, errToken	}	if updatedAuth != nil {		auth = updatedAuth		reporter.UpdateAccessTokenFingerprint(auth)	}	originalTranslated, translated := helps.TranslateRequestPairWithCodexMultiAgentV2(ctx, opts.Headers, e.cfg, from, to, baseModel, originalPayload, req.Payload, true) 	translated, err = helps.ApplyRequestThinking(translated, req, opts, from.String(), to.String(), e.Identifier())	if err != nil {		return resp, err	} 	requestedModel := helps.PayloadRequestedModel(opts, req.Model)	requestPath := helps.PayloadRequestPath(opts)	translated = helps.ApplyPayloadConfigWithRequest(e.cfg, baseModel, "antigravity", from.String(), "request", translated, originalTranslated, requestedModel, requestPath, opts.Headers)	translated = e.obfuscateSensitiveWords(translated)	translated = sanitizeAntigravityGeminiRequestSignatures(baseModel, translated)	reporter.SetTranslatedReasoningEffort(translated, to.String()) 	useCredits := cliproxyauth.AntigravityCreditsRequested(ctx) && antigravityCreditsRetryEnabled(e.cfg) 	baseURL := resolveAntigravityRequestBaseURL(auth)	httpClient := newAntigravityHTTPClient(ctx, e.cfg, auth, 0)	httpClient = reporter.TrackHTTPClient(httpClient) 	// Credential retry rounds are owned by the conductor. Perform one upstream	// request per credential so request-retry is not consumed twice.	requestPayload := translated	if useCredits {		if cp := injectEnabledCreditTypes(translated); len(cp) > 0 {			requestPayload = cp			helps.MarkCreditsUsed(ctx)		}	}	replayScope := antigravityReasoningReplayScope{}	if antigravityUsesReasoningReplayCache(baseModel) {		var errReplay error		requestPayload, replayScope, errReplay = prepareAntigravityGeminiReasoningReplayPayload(ctx, baseModel, req, opts, requestPayload)		if errReplay != nil {			err = errReplay			return resp, err		}	}	requestPayload = ensureAntigravityGeminiBoundaryUserContent(baseModel, requestPayload)	httpReq, errReq := e.buildRequest(ctx, auth, token, baseModel, requestPayload, true, opts.Alt, baseURL, helps.DerivedAntigravitySessionID(opts.Metadata, req.Metadata))	if errReq != nil {		err = errReq		return resp, err	} 	httpResp, errDo := httpClient.Do(httpReq)	if errDo != nil {		helps.RecordAPIResponseError(ctx, e.cfg, errDo)		if errors.Is(errDo, context.Canceled) || errors.Is(errDo, context.DeadlineExceeded) {			return resp, errDo		}		err = errDo		return resp, err	}	helps.RecordAPIResponseMetadata(ctx, e.cfg, httpResp.StatusCode, httpResp.Header.Clone())	if httpResp.StatusCode < http.StatusOK || httpResp.StatusCode >= http.StatusMultipleChoices {		bodyBytes, errRead := io.ReadAll(httpResp.Body)		if errClose := httpResp.Body.Close(); errClose != nil {			log.Errorf("antigravity executor: close response body error: %v", errClose)		}		if errRead != nil {			helps.RecordAPIResponseError(ctx, e.cfg, errRead)			if errors.Is(errRead, context.Canceled) || errors.Is(errRead, context.DeadlineExceeded) {				err = errRead				return resp, err			}			if errCtx := ctx.Err(); errCtx != nil {				err = errCtx				return resp, err			}			err = errRead			return resp, err		}		helps.AppendAPIResponseChunk(ctx, e.cfg, bodyBytes)		if httpResp.StatusCode == http.StatusTooManyRequests {			decision := decideAntigravity429(bodyBytes) 			switch decision.kind {			case antigravity429DecisionShortCooldownSwitchAuth:				closeAntigravityAuthIdleTransports(auth)				if decision.retryAfter != nil && *decision.retryAfter > 0 && !antigravityCoolingDisabled(auth, e.cfg) {					if errMarkCooldown := markAntigravityShortCooldownRequired(ctx, auth, baseModel, time.Now(), *decision.retryAfter); errMarkCooldown != nil {						err = homeKVUnavailableStatusErr(errMarkCooldown)						return resp, err					}					log.Debugf("antigravity executor: short quota cooldown (%s) for model %s, recorded cooldown", *decision.retryAfter, baseModel)				}			case antigravity429DecisionFullQuotaExhausted:				closeAntigravityAuthIdleTransports(auth)				if useCredits && antigravityHasExplicitCreditsBalanceExhaustedReason(bodyBytes) && !antigravityCoolingDisabled(auth, e.cfg) {					markAntigravityCreditsPermanentlyDisabled(auth)				}				// No credits logic - just fall through to error return below			}		} 		if errClear := clearAntigravityReasoningReplayOnInvalidSignature(ctx, replayScope, httpResp.StatusCode, bodyBytes); errClear != nil {			// Report the upstream failure rather than the cleanup failure.			logAntigravityReasoningReplayDegraded(replayScope, "invalidate", errClear)		}		err = newAntigravityStatusErr(httpResp.StatusCode, bodyBytes)		return resp, err	} 	// Stream success	if useCredits {		clearAntigravityCreditsFailureState(auth)	}	replayAccumulator := newAntigravityReasoningReplayAccumulator(replayScope, requestPayload)	out := make(chan cliproxyexecutor.StreamChunk)	go func(resp *http.Response) {		defer close(out)		defer func() {			if errClose := resp.Body.Close(); errClose != nil {				log.Errorf("antigravity executor: close response body error: %v", errClose)			}		}()		scanner := bufio.NewScanner(resp.Body)		scanner.Buffer(nil, streamScannerBuffer)		for scanner.Scan() {			line := scanner.Bytes()			helps.AppendAPIResponseChunk(ctx, e.cfg, line)			if replayAccumulator != nil {				replayAccumulator.ObserveSSELine(line)			} 			// Filter usage metadata for all models			// Only retain usage statistics in the terminal chunk			line = helps.FilterSSEUsageMetadata(line) 			payload := helps.JSONPayload(line)			if payload == nil {				continue			} 			if detail, ok := helps.ParseAntigravityStreamUsage(payload); ok {				reporter.Publish(ctx, detail)			} 			out <- cliproxyexecutor.StreamChunk{Payload: payload}		}		if errScan := scanner.Err(); errScan != nil {			helps.RecordAPIResponseError(ctx, e.cfg, errScan)			reporter.PublishFailure(ctx, errScan)			out <- cliproxyexecutor.StreamChunk{Err: errScan}		} else {			if replayAccumulator != nil {				replayAccumulator.Commit(ctx)			}			reporter.EnsurePublished(ctx)		}	}(httpResp) 	var buffer bytes.Buffer	for chunk := range out {		if chunk.Err != nil {			return resp, chunk.Err		}		if len(chunk.Payload) > 0 {			_, _ = buffer.Write(chunk.Payload)			_, _ = buffer.Write([]byte("\n"))		}	}	resp = cliproxyexecutor.Response{Payload: e.convertStreamToNonStream(buffer.Bytes())} 	resp.Payload = e.resolveWebSearchGroundingURLs(ctx, auth, from, originalPayload, translated, resp.Payload)	reporter.Publish(ctx, helps.ParseAntigravityUsage(resp.Payload))	var param any	converted := sdktranslator.TranslateNonStream(ctx, to, responseFormat, req.Model, opts.OriginalRequest, translated, resp.Payload, &param)	if responseFormat == sdktranslator.FormatOpenAIResponse {		converted = helps.EnsureResponsesUsageDetails(converted)	}	resp = cliproxyexecutor.Response{Payload: converted, Headers: httpResp.Header.Clone()}	reporter.EnsurePublished(ctx) 	return resp, nil} func (e *AntigravityExecutor) convertStreamToNonStream(stream []byte) []byte {	responseTemplate := ""	var traceID string	var finishReason string	var modelVersion string	var responseID string	var role string	var usageRaw string	parts := make([]map[string]interface{}, 0)	var pendingKind string	var pendingText strings.Builder	var pendingThoughtSig string 	flushPending := func() {		if pendingKind == "" {			return		}		text := pendingText.String()		switch pendingKind {		case "text":			if strings.TrimSpace(text) == "" {				pendingKind = ""				pendingText.Reset()				pendingThoughtSig = ""				return			}			parts = append(parts, map[string]interface{}{"text": text})		case "thought":			if strings.TrimSpace(text) == "" && pendingThoughtSig == "" {				pendingKind = ""				pendingText.Reset()				pendingThoughtSig = ""				return

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