package executor import (	"bufio"	"bytes"	"context"	"fmt"	"io"	"net/http"	"strings"	"time" 	codexauth "github.com/router-for-me/CLIProxyAPI/v6/internal/auth/codex"	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"	"github.com/router-for-me/CLIProxyAPI/v6/internal/misc"	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"	sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"	log "github.com/sirupsen/logrus"	"github.com/tidwall/gjson"	"github.com/tidwall/sjson"	"github.com/tiktoken-go/tokenizer" 	"github.com/gin-gonic/gin"	"github.com/google/uuid") var dataTag = []byte("data:") // CodexExecutor is a stateless executor for Codex (OpenAI Responses API entrypoint).// If api_key is unavailable on auth, it falls back to legacy via ClientAdapter.type CodexExecutor struct {	cfg *config.Config} func NewCodexExecutor(cfg *config.Config) *CodexExecutor { return &CodexExecutor{cfg: cfg} } func (e *CodexExecutor) Identifier() string { return "codex" } func (e *CodexExecutor) PrepareRequest(_ *http.Request, _ *cliproxyauth.Auth) error { return nil } func (e *CodexExecutor) Execute(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (resp cliproxyexecutor.Response, err error) {	apiKey, baseURL := codexCreds(auth) 	if baseURL == "" {		baseURL = "https://chatgpt.com/backend-api/codex"	}	reporter := newUsageReporter(ctx, e.Identifier(), req.Model, auth)	defer reporter.trackFailure(ctx, &err) 	upstreamModel := util.ResolveOriginalModel(req.Model, req.Metadata)	if upstreamModel == "" {		upstreamModel = req.Model	}	if modelOverride := e.resolveUpstreamModel(upstreamModel, auth); modelOverride != "" {		upstreamModel = modelOverride	} else if !strings.EqualFold(upstreamModel, req.Model) {		if modelOverride := e.resolveUpstreamModel(req.Model, auth); modelOverride != "" {			upstreamModel = modelOverride		}	} 	from := opts.SourceFormat	to := sdktranslator.FromString("codex")	body := sdktranslator.TranslateRequest(from, to, req.Model, bytes.Clone(req.Payload), false)	body = ApplyReasoningEffortMetadata(body, req.Metadata, req.Model, "reasoning.effort", false)	body = NormalizeThinkingConfig(body, upstreamModel, false)	if errValidate := ValidateThinkingConfig(body, upstreamModel); errValidate != nil {		return resp, errValidate	}	body = applyPayloadConfig(e.cfg, req.Model, body)	body, _ = sjson.SetBytes(body, "model", upstreamModel)	body, _ = sjson.SetBytes(body, "stream", true)	body, _ = sjson.DeleteBytes(body, "previous_response_id") 	url := strings.TrimSuffix(baseURL, "/") + "/responses"	httpReq, err := e.cacheHelper(ctx, from, url, req, body)	if err != nil {		return resp, err	}	applyCodexHeaders(httpReq, auth, apiKey)	var authID, authLabel, authType, authValue string	if auth != nil {		authID = auth.ID		authLabel = auth.Label		authType, authValue = auth.AccountInfo()	}	recordAPIRequest(ctx, e.cfg, upstreamRequestLog{		URL:       url,		Method:    http.MethodPost,		Headers:   httpReq.Header.Clone(),		Body:      body,		Provider:  e.Identifier(),		AuthID:    authID,		AuthLabel: authLabel,		AuthType:  authType,		AuthValue: authValue,	})	httpClient := newProxyAwareHTTPClient(ctx, e.cfg, auth, 0)	httpResp, err := httpClient.Do(httpReq)	if err != nil {		recordAPIResponseError(ctx, e.cfg, err)		return resp, err	}	defer func() {		if errClose := httpResp.Body.Close(); errClose != nil {			log.Errorf("codex executor: close response body error: %v", errClose)		}	}()	recordAPIResponseMetadata(ctx, e.cfg, httpResp.StatusCode, httpResp.Header.Clone())	if httpResp.StatusCode < 200 || httpResp.StatusCode >= 300 {		b, _ := io.ReadAll(httpResp.Body)		appendAPIResponseChunk(ctx, e.cfg, b)		log.Debugf("request error, error status: %d, error body: %s", httpResp.StatusCode, summarizeErrorBody(httpResp.Header.Get("Content-Type"), b))		err = statusErr{code: httpResp.StatusCode, msg: string(b)}		return resp, err	}	data, err := io.ReadAll(httpResp.Body)	if err != nil {		recordAPIResponseError(ctx, e.cfg, err)		return resp, err	}	appendAPIResponseChunk(ctx, e.cfg, data) 	lines := bytes.Split(data, []byte("\n"))	for _, line := range lines {		if !bytes.HasPrefix(line, dataTag) {			continue		} 		line = bytes.TrimSpace(line[5:])		if gjson.GetBytes(line, "type").String() != "response.completed" {			continue		} 		if detail, ok := parseCodexUsage(line); ok {			reporter.publish(ctx, detail)		} 		var param any		out := sdktranslator.TranslateNonStream(ctx, to, from, req.Model, bytes.Clone(opts.OriginalRequest), body, line, &param)		resp = cliproxyexecutor.Response{Payload: []byte(out)}		return resp, nil	}	err = statusErr{code: 408, msg: "stream error: stream disconnected before completion: stream closed before response.completed"}	return resp, err} func (e *CodexExecutor) ExecuteStream(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (stream <-chan cliproxyexecutor.StreamChunk, err error) {	apiKey, baseURL := codexCreds(auth) 	if baseURL == "" {		baseURL = "https://chatgpt.com/backend-api/codex"	}	reporter := newUsageReporter(ctx, e.Identifier(), req.Model, auth)	defer reporter.trackFailure(ctx, &err) 	upstreamModel := util.ResolveOriginalModel(req.Model, req.Metadata)	if upstreamModel == "" {		upstreamModel = req.Model	}	if modelOverride := e.resolveUpstreamModel(upstreamModel, auth); modelOverride != "" {		upstreamModel = modelOverride	} else if !strings.EqualFold(upstreamModel, req.Model) {		if modelOverride := e.resolveUpstreamModel(req.Model, auth); modelOverride != "" {			upstreamModel = modelOverride		}	} 	from := opts.SourceFormat	to := sdktranslator.FromString("codex")	body := sdktranslator.TranslateRequest(from, to, req.Model, bytes.Clone(req.Payload), true) 	body = ApplyReasoningEffortMetadata(body, req.Metadata, req.Model, "reasoning.effort", false)	body = NormalizeThinkingConfig(body, upstreamModel, false)	if errValidate := ValidateThinkingConfig(body, upstreamModel); errValidate != nil {		return nil, errValidate	}	body = applyPayloadConfig(e.cfg, req.Model, body)	body, _ = sjson.DeleteBytes(body, "previous_response_id")	body, _ = sjson.SetBytes(body, "model", upstreamModel) 	url := strings.TrimSuffix(baseURL, "/") + "/responses"	httpReq, err := e.cacheHelper(ctx, from, url, req, body)	if err != nil {		return nil, err	}	applyCodexHeaders(httpReq, auth, apiKey)	var authID, authLabel, authType, authValue string	if auth != nil {		authID = auth.ID		authLabel = auth.Label		authType, authValue = auth.AccountInfo()	}	recordAPIRequest(ctx, e.cfg, upstreamRequestLog{		URL:       url,		Method:    http.MethodPost,		Headers:   httpReq.Header.Clone(),		Body:      body,		Provider:  e.Identifier(),		AuthID:    authID,		AuthLabel: authLabel,		AuthType:  authType,		AuthValue: authValue,	}) 	httpClient := newProxyAwareHTTPClient(ctx, e.cfg, auth, 0)	httpResp, err := httpClient.Do(httpReq)	if err != nil {		recordAPIResponseError(ctx, e.cfg, err)		return nil, err	}	recordAPIResponseMetadata(ctx, e.cfg, httpResp.StatusCode, httpResp.Header.Clone())	if httpResp.StatusCode < 200 || httpResp.StatusCode >= 300 {		data, readErr := io.ReadAll(httpResp.Body)		if errClose := httpResp.Body.Close(); errClose != nil {			log.Errorf("codex executor: close response body error: %v", errClose)		}		if readErr != nil {			recordAPIResponseError(ctx, e.cfg, readErr)			return nil, readErr		}		appendAPIResponseChunk(ctx, e.cfg, data)		log.Debugf("request error, error status: %d, error body: %s", httpResp.StatusCode, summarizeErrorBody(httpResp.Header.Get("Content-Type"), data))		err = statusErr{code: httpResp.StatusCode, msg: string(data)}		return nil, err	}	out := make(chan cliproxyexecutor.StreamChunk)	stream = out	go func() {		defer close(out)		defer func() {			if errClose := httpResp.Body.Close(); errClose != nil {				log.Errorf("codex executor: close response body error: %v", errClose)			}		}()		scanner := bufio.NewScanner(httpResp.Body)		scanner.Buffer(nil, 52_428_800) // 50MB		var param any		for scanner.Scan() {			line := scanner.Bytes()			appendAPIResponseChunk(ctx, e.cfg, line) 			if bytes.HasPrefix(line, dataTag) {				data := bytes.TrimSpace(line[5:])				if gjson.GetBytes(data, "type").String() == "response.completed" {					if detail, ok := parseCodexUsage(data); ok {						reporter.publish(ctx, detail)					}				}			} 			chunks := sdktranslator.TranslateStream(ctx, to, from, req.Model, bytes.Clone(opts.OriginalRequest), body, bytes.Clone(line), &param)			for i := range chunks {				out <- cliproxyexecutor.StreamChunk{Payload: []byte(chunks[i])}			}		}		if errScan := scanner.Err(); errScan != nil {			recordAPIResponseError(ctx, e.cfg, errScan)			reporter.publishFailure(ctx)			out <- cliproxyexecutor.StreamChunk{Err: errScan}		}	}()	return stream, nil} func (e *CodexExecutor) CountTokens(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (cliproxyexecutor.Response, error) {	upstreamModel := util.ResolveOriginalModel(req.Model, req.Metadata)	if upstreamModel == "" {		upstreamModel = req.Model	}	if modelOverride := e.resolveUpstreamModel(upstreamModel, auth); modelOverride != "" {		upstreamModel = modelOverride	} else if !strings.EqualFold(upstreamModel, req.Model) {		if modelOverride := e.resolveUpstreamModel(req.Model, auth); modelOverride != "" {			upstreamModel = modelOverride		}	} 	from := opts.SourceFormat	to := sdktranslator.FromString("codex")	body := sdktranslator.TranslateRequest(from, to, req.Model, bytes.Clone(req.Payload), false) 	modelForCounting := upstreamModel 	body = ApplyReasoningEffortMetadata(body, req.Metadata, req.Model, "reasoning.effort", false)	body, _ = sjson.SetBytes(body, "model", upstreamModel)	body, _ = sjson.DeleteBytes(body, "previous_response_id")	body, _ = sjson.SetBytes(body, "stream", false) 	enc, err := tokenizerForCodexModel(modelForCounting)	if err != nil {		return cliproxyexecutor.Response{}, fmt.Errorf("codex executor: tokenizer init failed: %w", err)	} 	count, err := countCodexInputTokens(enc, body)	if err != nil {		return cliproxyexecutor.Response{}, fmt.Errorf("codex executor: token counting failed: %w", err)	} 	usageJSON := fmt.Sprintf(`{"response":{"usage":{"input_tokens":%d,"output_tokens":0,"total_tokens":%d}}}`, count, count)	translated := sdktranslator.TranslateTokenCount(ctx, to, from, count, []byte(usageJSON))	return cliproxyexecutor.Response{Payload: []byte(translated)}, nil} func tokenizerForCodexModel(model string) (tokenizer.Codec, error) {	sanitized := strings.ToLower(strings.TrimSpace(model))	switch {	case sanitized == "":		return tokenizer.Get(tokenizer.Cl100kBase)	case strings.HasPrefix(sanitized, "gpt-5"):		return tokenizer.ForModel(tokenizer.GPT5)	case strings.HasPrefix(sanitized, "gpt-4.1"):		return tokenizer.ForModel(tokenizer.GPT41)	case strings.HasPrefix(sanitized, "gpt-4o"):		return tokenizer.ForModel(tokenizer.GPT4o)	case strings.HasPrefix(sanitized, "gpt-4"):		return tokenizer.ForModel(tokenizer.GPT4)	case strings.HasPrefix(sanitized, "gpt-3.5"), strings.HasPrefix(sanitized, "gpt-3"):		return tokenizer.ForModel(tokenizer.GPT35Turbo)	default:		return tokenizer.Get(tokenizer.Cl100kBase)	}} func countCodexInputTokens(enc tokenizer.Codec, body []byte) (int64, error) {	if enc == nil {		return 0, fmt.Errorf("encoder is nil")	}	if len(body) == 0 {		return 0, nil	} 	root := gjson.ParseBytes(body)	var segments []string 	if inst := strings.TrimSpace(root.Get("instructions").String()); inst != "" {		segments = append(segments, inst)	} 	inputItems := root.Get("input")	if inputItems.IsArray() {		arr := inputItems.Array()		for i := range arr {			item := arr[i]			switch item.Get("type").String() {			case "message":				content := item.Get("content")				if content.IsArray() {					parts := content.Array()					for j := range parts {						part := parts[j]						if text := strings.TrimSpace(part.Get("text").String()); text != "" {							segments = append(segments, text)						}					}				}			case "function_call":				if name := strings.TrimSpace(item.Get("name").String()); name != "" {					segments = append(segments, name)				}				if args := strings.TrimSpace(item.Get("arguments").String()); args != "" {					segments = append(segments, args)				}			case "function_call_output":				if out := strings.TrimSpace(item.Get("output").String()); out != "" {					segments = append(segments, out)				}			default:				if text := strings.TrimSpace(item.Get("text").String()); text != "" {					segments = append(segments, text)				}			}		}	} 	tools := root.Get("tools")	if tools.IsArray() {		tarr := tools.Array()		for i := range tarr {			tool := tarr[i]			if name := strings.TrimSpace(tool.Get("name").String()); name != "" {				segments = append(segments, name)			}			if desc := strings.TrimSpace(tool.Get("description").String()); desc != "" {				segments = append(segments, desc)			}			if params := tool.Get("parameters"); params.Exists() {				val := params.Raw				if params.Type == gjson.String {					val = params.String()				}				if trimmed := strings.TrimSpace(val); trimmed != "" {					segments = append(segments, trimmed)				}			}		}	} 	textFormat := root.Get("text.format")	if textFormat.Exists() {		if name := strings.TrimSpace(textFormat.Get("name").String()); name != "" {			segments = append(segments, name)		}		if schema := textFormat.Get("schema"); schema.Exists() {			val := schema.Raw			if schema.Type == gjson.String {				val = schema.String()			}			if trimmed := strings.TrimSpace(val); trimmed != "" {				segments = append(segments, trimmed)			}		}	} 	text := strings.Join(segments, "\n")	if text == "" {		return 0, nil	} 	count, err := enc.Count(text)	if err != nil {		return 0, err	}	return int64(count), nil} func (e *CodexExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {	log.Debugf("codex executor: refresh called")	if auth == nil {		return nil, statusErr{code: 500, msg: "codex executor: auth is nil"}	}	var refreshToken string	if auth.Metadata != nil {		if v, ok := auth.Metadata["refresh_token"].(string); ok && v != "" {			refreshToken = v		}	}	if refreshToken == "" {		return auth, nil	}	svc := codexauth.NewCodexAuth(e.cfg)	td, err := svc.RefreshTokensWithRetry(ctx, refreshToken, 3)	if err != nil {		return nil, err	}	if auth.Metadata == nil {		auth.Metadata = make(map[string]any)	}	auth.Metadata["id_token"] = td.IDToken	auth.Metadata["access_token"] = td.AccessToken	if td.RefreshToken != "" {		auth.Metadata["refresh_token"] = td.RefreshToken	}	if td.AccountID != "" {		auth.Metadata["account_id"] = td.AccountID	}	auth.Metadata["email"] = td.Email	// Use unified key in files	auth.Metadata["expired"] = td.Expire	auth.Metadata["type"] = "codex"	now := time.Now().Format(time.RFC3339)	auth.Metadata["last_refresh"] = now	return auth, nil} func (e *CodexExecutor) cacheHelper(ctx context.Context, from sdktranslator.Format, url string, req cliproxyexecutor.Request, rawJSON []byte) (*http.Request, error) {	var cache codexCache	if from == "claude" {		userIDResult := gjson.GetBytes(req.Payload, "metadata.user_id")		if userIDResult.Exists() {			var hasKey bool			key := fmt.Sprintf("%s-%s", req.Model, userIDResult.String())			if cache, hasKey = codexCacheMap[key]; !hasKey || cache.Expire.Before(time.Now()) {				cache = codexCache{					ID:     uuid.New().String(),					Expire: time.Now().Add(1 * time.Hour),				}				codexCacheMap[key] = cache			}		}	} else if from == "openai-response" {		promptCacheKey := gjson.GetBytes(req.Payload, "prompt_cache_key")		if promptCacheKey.Exists() {			cache.ID = promptCacheKey.String()		}	} 	rawJSON, _ = sjson.SetBytes(rawJSON, "prompt_cache_key", cache.ID)	httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewReader(rawJSON))	if err != nil {		return nil, err	}	httpReq.Header.Set("Conversation_id", cache.ID)	httpReq.Header.Set("Session_id", cache.ID)	return httpReq, nil} func applyCodexHeaders(r *http.Request, auth *cliproxyauth.Auth, token string) {

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