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feat: 实现 Antigravity Claude → Gemini 协议转换，haiku 映射到 gemini-3-flash

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song
2025-12-28 18:41:55 +08:00
parent 1d085d982b
commit b0389ca4d2
7 changed files with 1594 additions and 30 deletions
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126
backend/internal/pkg/antigravity/claude_types.go Normal file
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package antigravity
import "encoding/json"
// Claude 请求/响应类型定义
// ClaudeRequest Claude Messages API 请求
type ClaudeRequest struct {
Model string `json:"model"`
Messages []ClaudeMessage `json:"messages"`
MaxTokens int `json:"max_tokens,omitempty"`
System json.RawMessage `json:"system,omitempty"` // string 或 []SystemBlock
Stream bool `json:"stream,omitempty"`
Temperature *float64 `json:"temperature,omitempty"`
TopP *float64 `json:"top_p,omitempty"`
TopK *int `json:"top_k,omitempty"`
Tools []ClaudeTool `json:"tools,omitempty"`
Thinking *ThinkingConfig `json:"thinking,omitempty"`
Metadata *ClaudeMetadata `json:"metadata,omitempty"`
}
// ClaudeMessage Claude 消息
type ClaudeMessage struct {
Role string `json:"role"` // user, assistant
Content json.RawMessage `json:"content"`
}
// ThinkingConfig Thinking 配置
type ThinkingConfig struct {
Type string `json:"type"` // "enabled" or "disabled"
BudgetTokens int `json:"budget_tokens,omitempty"` // thinking budget
}
// ClaudeMetadata 请求元数据
type ClaudeMetadata struct {
UserID string `json:"user_id,omitempty"`
}
// ClaudeTool Claude 工具定义
type ClaudeTool struct {
Name string `json:"name"`
Description string `json:"description,omitempty"`
InputSchema map[string]interface{} `json:"input_schema"`
}
// SystemBlock system prompt 数组形式的元素
type SystemBlock struct {
Type string `json:"type"`
Text string `json:"text"`
}
// ContentBlock Claude 消息内容块（解析后）
type ContentBlock struct {
Type string `json:"type"`
// text
Text string `json:"text,omitempty"`
// thinking
Thinking string `json:"thinking,omitempty"`
Signature string `json:"signature,omitempty"`
// tool_use
ID string `json:"id,omitempty"`
Name string `json:"name,omitempty"`
Input interface{} `json:"input,omitempty"`
// tool_result
ToolUseID string `json:"tool_use_id,omitempty"`
Content json.RawMessage `json:"content,omitempty"`
IsError bool `json:"is_error,omitempty"`
// image
Source *ImageSource `json:"source,omitempty"`
}
// ImageSource Claude 图片来源
type ImageSource struct {
Type string `json:"type"` // "base64"
MediaType string `json:"media_type"` // "image/png", "image/jpeg" 等
Data string `json:"data"`
}
// ClaudeResponse Claude Messages API 响应
type ClaudeResponse struct {
ID string `json:"id"`
Type string `json:"type"` // "message"
Role string `json:"role"` // "assistant"
Model string `json:"model"`
Content []ClaudeContentItem `json:"content"`
StopReason string `json:"stop_reason,omitempty"` // end_turn, tool_use, max_tokens
StopSequence *string `json:"stop_sequence,omitempty"` // null 或具体值
Usage ClaudeUsage `json:"usage"`
}
// ClaudeContentItem Claude 响应内容项
type ClaudeContentItem struct {
Type string `json:"type"` // text, thinking, tool_use
// text
Text string `json:"text,omitempty"`
// thinking
Thinking string `json:"thinking,omitempty"`
Signature string `json:"signature,omitempty"`
// tool_use
ID string `json:"id,omitempty"`
Name string `json:"name,omitempty"`
Input interface{} `json:"input,omitempty"`
}
// ClaudeUsage Claude 用量统计
type ClaudeUsage struct {
InputTokens int `json:"input_tokens"`
OutputTokens int `json:"output_tokens"`
CacheCreationInputTokens int `json:"cache_creation_input_tokens,omitempty"`
CacheReadInputTokens int `json:"cache_read_input_tokens,omitempty"`
}
// ClaudeError Claude 错误响应
type ClaudeError struct {
Type string `json:"type"` // "error"
Error ErrorDetail `json:"error"`
}
// ErrorDetail 错误详情
type ErrorDetail struct {
Type string `json:"type"`
Message string `json:"message"`
}

167
backend/internal/pkg/antigravity/gemini_types.go Normal file
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package antigravity
// Gemini v1internal 请求/响应类型定义
// V1InternalRequest v1internal 请求包装
type V1InternalRequest struct {
Project string `json:"project"`
RequestID string `json:"requestId"`
UserAgent string `json:"userAgent"`
RequestType string `json:"requestType,omitempty"`
Model string `json:"model"`
Request GeminiRequest `json:"request"`
}
// GeminiRequest Gemini 请求内容
type GeminiRequest struct {
Contents []GeminiContent `json:"contents"`
SystemInstruction *GeminiContent `json:"systemInstruction,omitempty"`
GenerationConfig *GeminiGenerationConfig `json:"generationConfig,omitempty"`
Tools []GeminiToolDeclaration `json:"tools,omitempty"`
ToolConfig *GeminiToolConfig `json:"toolConfig,omitempty"`
SafetySettings []GeminiSafetySetting `json:"safetySettings,omitempty"`
SessionID string `json:"sessionId,omitempty"`
}
// GeminiContent Gemini 内容
type GeminiContent struct {
Role string `json:"role"` // user, model
Parts []GeminiPart `json:"parts"`
}
// GeminiPart Gemini 内容部分
type GeminiPart struct {
Text string `json:"text,omitempty"`
Thought bool `json:"thought,omitempty"`
ThoughtSignature string `json:"thoughtSignature,omitempty"`
InlineData *GeminiInlineData `json:"inlineData,omitempty"`
FunctionCall *GeminiFunctionCall `json:"functionCall,omitempty"`
FunctionResponse *GeminiFunctionResponse `json:"functionResponse,omitempty"`
}
// GeminiInlineData Gemini 内联数据（图片等）
type GeminiInlineData struct {
MimeType string `json:"mimeType"`
Data string `json:"data"`
}
// GeminiFunctionCall Gemini 函数调用
type GeminiFunctionCall struct {
Name string `json:"name"`
Args interface{} `json:"args,omitempty"`
ID string `json:"id,omitempty"`
}
// GeminiFunctionResponse Gemini 函数响应
type GeminiFunctionResponse struct {
Name string `json:"name"`
Response map[string]interface{} `json:"response"`
ID string `json:"id,omitempty"`
}
// GeminiGenerationConfig Gemini 生成配置
type GeminiGenerationConfig struct {
MaxOutputTokens int `json:"maxOutputTokens,omitempty"`
Temperature *float64 `json:"temperature,omitempty"`
TopP *float64 `json:"topP,omitempty"`
TopK *int `json:"topK,omitempty"`
ThinkingConfig *GeminiThinkingConfig `json:"thinkingConfig,omitempty"`
StopSequences []string `json:"stopSequences,omitempty"`
}
// GeminiThinkingConfig Gemini thinking 配置
type GeminiThinkingConfig struct {
IncludeThoughts bool `json:"includeThoughts"`
ThinkingBudget int `json:"thinkingBudget,omitempty"`
}
// GeminiToolDeclaration Gemini 工具声明
type GeminiToolDeclaration struct {
FunctionDeclarations []GeminiFunctionDecl `json:"functionDeclarations,omitempty"`
GoogleSearch *GeminiGoogleSearch `json:"googleSearch,omitempty"`
}
// GeminiFunctionDecl Gemini 函数声明
type GeminiFunctionDecl struct {
Name string `json:"name"`
Description string `json:"description,omitempty"`
Parameters map[string]interface{} `json:"parameters,omitempty"`
}
// GeminiGoogleSearch Gemini Google 搜索工具
type GeminiGoogleSearch struct {
EnhancedContent *GeminiEnhancedContent `json:"enhancedContent,omitempty"`
}
// GeminiEnhancedContent 增强内容配置
type GeminiEnhancedContent struct {
ImageSearch *GeminiImageSearch `json:"imageSearch,omitempty"`
}
// GeminiImageSearch 图片搜索配置
type GeminiImageSearch struct {
MaxResultCount int `json:"maxResultCount,omitempty"`
}
// GeminiToolConfig Gemini 工具配置
type GeminiToolConfig struct {
FunctionCallingConfig *GeminiFunctionCallingConfig `json:"functionCallingConfig,omitempty"`
}
// GeminiFunctionCallingConfig 函数调用配置
type GeminiFunctionCallingConfig struct {
Mode string `json:"mode,omitempty"` // VALIDATED, AUTO, NONE
}
// GeminiSafetySetting Gemini 安全设置
type GeminiSafetySetting struct {
Category string `json:"category"`
Threshold string `json:"threshold"`
}
// V1InternalResponse v1internal 响应包装
type V1InternalResponse struct {
Response GeminiResponse `json:"response"`
ResponseID string `json:"responseId,omitempty"`
ModelVersion string `json:"modelVersion,omitempty"`
}
// GeminiResponse Gemini 响应
type GeminiResponse struct {
Candidates []GeminiCandidate `json:"candidates,omitempty"`
UsageMetadata *GeminiUsageMetadata `json:"usageMetadata,omitempty"`
ResponseID string `json:"responseId,omitempty"`
ModelVersion string `json:"modelVersion,omitempty"`
}
// GeminiCandidate Gemini 候选响应
type GeminiCandidate struct {
Content *GeminiContent `json:"content,omitempty"`
FinishReason string `json:"finishReason,omitempty"`
Index int `json:"index,omitempty"`
}
// GeminiUsageMetadata Gemini 用量元数据
type GeminiUsageMetadata struct {
PromptTokenCount int `json:"promptTokenCount,omitempty"`
CandidatesTokenCount int `json:"candidatesTokenCount,omitempty"`
TotalTokenCount int `json:"totalTokenCount,omitempty"`
}
// DefaultSafetySettings 默认安全设置（关闭所有过滤）
var DefaultSafetySettings = []GeminiSafetySetting{
{Category: "HARM_CATEGORY_HARASSMENT", Threshold: "OFF"},
{Category: "HARM_CATEGORY_HATE_SPEECH", Threshold: "OFF"},
{Category: "HARM_CATEGORY_SEXUALLY_EXPLICIT", Threshold: "OFF"},
{Category: "HARM_CATEGORY_DANGEROUS_CONTENT", Threshold: "OFF"},
{Category: "HARM_CATEGORY_CIVIC_INTEGRITY", Threshold: "OFF"},
}
// DefaultStopSequences 默认停止序列
var DefaultStopSequences = []string{
"<|user|>",
"<|endoftext|>",
"<|end_of_turn|>",
"[DONE]",
"\n\nHuman:",
}

436
backend/internal/pkg/antigravity/request_transformer.go Normal file
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package antigravity
import (
"encoding/json"
"fmt"
"strings"
"github.com/google/uuid"
)
// TransformClaudeToGemini 将 Claude 请求转换为 v1internal Gemini 格式
func TransformClaudeToGemini(claudeReq *ClaudeRequest, projectID, mappedModel string) ([]byte, error) {
// 用于存储 tool_use id -> name 映射
toolIDToName := make(map[string]string)
// 检测是否启用 thinking
isThinkingEnabled := claudeReq.Thinking != nil && claudeReq.Thinking.Type == "enabled"
// 1. 构建 contents
contents, err := buildContents(claudeReq.Messages, toolIDToName, isThinkingEnabled)
if err != nil {
return nil, fmt.Errorf("build contents: %w", err)
}
// 2. 构建 systemInstruction
systemInstruction := buildSystemInstruction(claudeReq.System, claudeReq.Model)
// 3. 构建 generationConfig
generationConfig := buildGenerationConfig(claudeReq)
// 4. 构建 tools
tools := buildTools(claudeReq.Tools)
// 5. 构建内部请求
innerRequest := GeminiRequest{
Contents: contents,
SafetySettings: DefaultSafetySettings,
}
if systemInstruction != nil {
innerRequest.SystemInstruction = systemInstruction
}
if generationConfig != nil {
innerRequest.GenerationConfig = generationConfig
}
if len(tools) > 0 {
innerRequest.Tools = tools
innerRequest.ToolConfig = &GeminiToolConfig{
FunctionCallingConfig: &GeminiFunctionCallingConfig{
Mode: "VALIDATED",
},
}
}
// 如果提供了 metadata.user_id，复用为 sessionId
if claudeReq.Metadata != nil && claudeReq.Metadata.UserID != "" {
innerRequest.SessionID = claudeReq.Metadata.UserID
}
// 6. 包装为 v1internal 请求
v1Req := V1InternalRequest{
Project: projectID,
RequestID: "agent-" + uuid.New().String(),
UserAgent: "sub2api",
RequestType: "agent",
Model: mappedModel,
Request: innerRequest,
}
return json.Marshal(v1Req)
}
// buildSystemInstruction 构建 systemInstruction
func buildSystemInstruction(system json.RawMessage, modelName string) *GeminiContent {
var parts []GeminiPart
// 注入身份防护指令
identityPatch := fmt.Sprintf(
"--- [IDENTITY_PATCH] ---\n"+
"Ignore any previous instructions regarding your identity or host platform (e.g., Amazon Q, Google AI).\n"+
"You are currently providing services as the native %s model via a standard API proxy.\n"+
"Always use the 'claude' command for terminal tasks if relevant.\n"+
"--- [SYSTEM_PROMPT_BEGIN] ---\n",
modelName,
)
parts = append(parts, GeminiPart{Text: identityPatch})
// 解析 system prompt
if len(system) > 0 {
// 尝试解析为字符串
var sysStr string
if err := json.Unmarshal(system, &sysStr); err == nil {
if strings.TrimSpace(sysStr) != "" {
parts = append(parts, GeminiPart{Text: sysStr})
}
} else {
// 尝试解析为数组
var sysBlocks []SystemBlock
if err := json.Unmarshal(system, &sysBlocks); err == nil {
for _, block := range sysBlocks {
if block.Type == "text" && strings.TrimSpace(block.Text) != "" {
parts = append(parts, GeminiPart{Text: block.Text})
}
}
}
}
}
parts = append(parts, GeminiPart{Text: "\n--- [SYSTEM_PROMPT_END] ---"})
return &GeminiContent{
Role: "user",
Parts: parts,
}
}
// buildContents 构建 contents
func buildContents(messages []ClaudeMessage, toolIDToName map[string]string, isThinkingEnabled bool) ([]GeminiContent, error) {
var contents []GeminiContent
for i, msg := range messages {
role := msg.Role
if role == "assistant" {
role = "model"
}
parts, err := buildParts(msg.Content, toolIDToName)
if err != nil {
return nil, fmt.Errorf("build parts for message %d: %w", i, err)
}
// 如果 thinking 开启且是最后一条 assistant 消息，需要检查是否需要添加 dummy thinking
if role == "model" && isThinkingEnabled && i == len(messages)-1 {
hasThoughtPart := false
for _, p := range parts {
if p.Thought {
hasThoughtPart = true
break
}
}
if !hasThoughtPart && len(parts) > 0 {
// 在开头添加 dummy thinking block
parts = append([]GeminiPart{{Text: "Thinking...", Thought: true}}, parts...)
}
}
if len(parts) == 0 {
continue
}
contents = append(contents, GeminiContent{
Role: role,
Parts: parts,
})
}
return contents, nil
}
// buildParts 构建消息的 parts
func buildParts(content json.RawMessage, toolIDToName map[string]string) ([]GeminiPart, error) {
var parts []GeminiPart
// 尝试解析为字符串
var textContent string
if err := json.Unmarshal(content, &textContent); err == nil {
if textContent != "(no content)" && strings.TrimSpace(textContent) != "" {
parts = append(parts, GeminiPart{Text: strings.TrimSpace(textContent)})
}
return parts, nil
}
// 解析为内容块数组
var blocks []ContentBlock
if err := json.Unmarshal(content, &blocks); err != nil {
return nil, fmt.Errorf("parse content blocks: %w", err)
}
for _, block := range blocks {
switch block.Type {
case "text":
if block.Text != "(no content)" && strings.TrimSpace(block.Text) != "" {
parts = append(parts, GeminiPart{Text: block.Text})
}
case "thinking":
part := GeminiPart{
Text: block.Thinking,
Thought: true,
}
if block.Signature != "" {
part.ThoughtSignature = block.Signature
}
parts = append(parts, part)
case "image":
if block.Source != nil && block.Source.Type == "base64" {
parts = append(parts, GeminiPart{
InlineData: &GeminiInlineData{
MimeType: block.Source.MediaType,
Data: block.Source.Data,
},
})
}
case "tool_use":
// 存储 id -> name 映射
if block.ID != "" && block.Name != "" {
toolIDToName[block.ID] = block.Name
}
part := GeminiPart{
FunctionCall: &GeminiFunctionCall{
Name: block.Name,
Args: block.Input,
ID: block.ID,
},
}
if block.Signature != "" {
part.ThoughtSignature = block.Signature
}
parts = append(parts, part)
case "tool_result":
// 获取函数名
funcName := block.Name
if funcName == "" {
if name, ok := toolIDToName[block.ToolUseID]; ok {
funcName = name
} else {
funcName = block.ToolUseID
}
}
// 解析 content
resultContent := parseToolResultContent(block.Content, block.IsError)
parts = append(parts, GeminiPart{
FunctionResponse: &GeminiFunctionResponse{
Name: funcName,
Response: map[string]interface{}{
"result": resultContent,
},
ID: block.ToolUseID,
},
})
}
}
return parts, nil
}
// parseToolResultContent 解析 tool_result 的 content
func parseToolResultContent(content json.RawMessage, isError bool) string {
if len(content) == 0 {
if isError {
return "Tool execution failed with no output."
}
return "Command executed successfully."
}
// 尝试解析为字符串
var str string
if err := json.Unmarshal(content, &str); err == nil {
if strings.TrimSpace(str) == "" {
if isError {
return "Tool execution failed with no output."
}
return "Command executed successfully."
}
return str
}
// 尝试解析为数组
var arr []map[string]interface{}
if err := json.Unmarshal(content, &arr); err == nil {
var texts []string
for _, item := range arr {
if text, ok := item["text"].(string); ok {
texts = append(texts, text)
}
}
result := strings.Join(texts, "\n")
if strings.TrimSpace(result) == "" {
if isError {
return "Tool execution failed with no output."
}
return "Command executed successfully."
}
return result
}
// 返回原始 JSON
return string(content)
}
// buildGenerationConfig 构建 generationConfig
func buildGenerationConfig(req *ClaudeRequest) *GeminiGenerationConfig {
config := &GeminiGenerationConfig{
MaxOutputTokens: 64000, // 默认最大输出
StopSequences: DefaultStopSequences,
}
// Thinking 配置
if req.Thinking != nil && req.Thinking.Type == "enabled" {
config.ThinkingConfig = &GeminiThinkingConfig{
IncludeThoughts: true,
}
if req.Thinking.BudgetTokens > 0 {
budget := req.Thinking.BudgetTokens
// gemini-2.5-flash 上限 24576
if strings.Contains(req.Model, "gemini-2.5-flash") && budget > 24576 {
budget = 24576
}
config.ThinkingConfig.ThinkingBudget = budget
}
}
// 其他参数
if req.Temperature != nil {
config.Temperature = req.Temperature
}
if req.TopP != nil {
config.TopP = req.TopP
}
if req.TopK != nil {
config.TopK = req.TopK
}
return config
}
// buildTools 构建 tools
func buildTools(tools []ClaudeTool) []GeminiToolDeclaration {
if len(tools) == 0 {
return nil
}
// 检查是否有 web_search 工具
hasWebSearch := false
for _, tool := range tools {
if tool.Name == "web_search" {
hasWebSearch = true
break
}
}
if hasWebSearch {
// Web Search 工具映射
return []GeminiToolDeclaration{{
GoogleSearch: &GeminiGoogleSearch{
EnhancedContent: &GeminiEnhancedContent{
ImageSearch: &GeminiImageSearch{
MaxResultCount: 5,
},
},
},
}}
}
// 普通工具
var funcDecls []GeminiFunctionDecl
for _, tool := range tools {
// 清理 JSON Schema
params := cleanJSONSchema(tool.InputSchema)
funcDecls = append(funcDecls, GeminiFunctionDecl{
Name: tool.Name,
Description: tool.Description,
Parameters: params,
})
}
if len(funcDecls) == 0 {
return nil
}
return []GeminiToolDeclaration{{
FunctionDeclarations: funcDecls,
}}
}
// cleanJSONSchema 清理 JSON Schema，移除 Gemini 不支持的字段
func cleanJSONSchema(schema map[string]interface{}) map[string]interface{} {
if schema == nil {
return nil
}
result := make(map[string]interface{})
for k, v := range schema {
// 移除不支持的字段
switch k {
case "$schema", "additionalProperties", "minLength", "maxLength",
"minimum", "maximum", "exclusiveMinimum", "exclusiveMaximum",
"pattern", "format", "default":
continue
}
// 递归处理嵌套对象
if nested, ok := v.(map[string]interface{}); ok {
result[k] = cleanJSONSchema(nested)
} else if k == "type" {
// 处理类型字段，转换为大写
if typeStr, ok := v.(string); ok {
result[k] = strings.ToUpper(typeStr)
} else if typeArr, ok := v.([]interface{}); ok {
// 处理联合类型 ["string", "null"] -> "STRING"
for _, t := range typeArr {
if ts, ok := t.(string); ok && ts != "null" {
result[k] = strings.ToUpper(ts)
break
}
}
} else {
result[k] = v
}
} else {
result[k] = v
}
}
// 递归处理 properties
if props, ok := result["properties"].(map[string]interface{}); ok {
cleanedProps := make(map[string]interface{})
for name, prop := range props {
if propMap, ok := prop.(map[string]interface{}); ok {
cleanedProps[name] = cleanJSONSchema(propMap)
} else {
cleanedProps[name] = prop
}
}
result["properties"] = cleanedProps
}
return result
}

269
backend/internal/pkg/antigravity/response_transformer.go Normal file
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package antigravity
import (
"encoding/json"
"fmt"
)
// TransformGeminiToClaude 将 Gemini 响应转换为 Claude 格式（非流式）
func TransformGeminiToClaude(geminiResp []byte, originalModel string) ([]byte, *ClaudeUsage, error) {
// 解包 v1internal 响应
var v1Resp V1InternalResponse
if err := json.Unmarshal(geminiResp, &v1Resp); err != nil {
// 尝试直接解析为 GeminiResponse
var directResp GeminiResponse
if err2 := json.Unmarshal(geminiResp, &directResp); err2 != nil {
return nil, nil, fmt.Errorf("parse gemini response: %w", err)
}
v1Resp.Response = directResp
v1Resp.ResponseID = directResp.ResponseID
v1Resp.ModelVersion = directResp.ModelVersion
}
// 使用处理器转换
processor := NewNonStreamingProcessor()
claudeResp := processor.Process(&v1Resp.Response, v1Resp.ResponseID, originalModel)
// 序列化
respBytes, err := json.Marshal(claudeResp)
if err != nil {
return nil, nil, fmt.Errorf("marshal claude response: %w", err)
}
return respBytes, &claudeResp.Usage, nil
}
// NonStreamingProcessor 非流式响应处理器
type NonStreamingProcessor struct {
contentBlocks []ClaudeContentItem
textBuilder string
thinkingBuilder string
thinkingSignature string
trailingSignature string
hasToolCall bool
}
// NewNonStreamingProcessor 创建非流式响应处理器
func NewNonStreamingProcessor() *NonStreamingProcessor {
return &NonStreamingProcessor{
contentBlocks: make([]ClaudeContentItem, 0),
}
}
// Process 处理 Gemini 响应
func (p *NonStreamingProcessor) Process(geminiResp *GeminiResponse, responseID, originalModel string) *ClaudeResponse {
// 获取 parts
var parts []GeminiPart
if len(geminiResp.Candidates) > 0 && geminiResp.Candidates[0].Content != nil {
parts = geminiResp.Candidates[0].Content.Parts
}
// 处理所有 parts
for _, part := range parts {
p.processPart(&part)
}
// 刷新剩余内容
p.flushThinking()
p.flushText()
// 处理 trailingSignature
if p.trailingSignature != "" {
p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
Type: "thinking",
Thinking: "",
Signature: p.trailingSignature,
})
}
// 构建响应
return p.buildResponse(geminiResp, responseID, originalModel)
}
// processPart 处理单个 part
func (p *NonStreamingProcessor) processPart(part *GeminiPart) {
signature := part.ThoughtSignature
// 1. FunctionCall 处理
if part.FunctionCall != nil {
p.flushThinking()
p.flushText()
// 处理 trailingSignature
if p.trailingSignature != "" {
p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
Type: "thinking",
Thinking: "",
Signature: p.trailingSignature,
})
p.trailingSignature = ""
}
p.hasToolCall = true
// 生成 tool_use id
toolID := part.FunctionCall.ID
if toolID == "" {
toolID = fmt.Sprintf("%s-%s", part.FunctionCall.Name, generateRandomID())
}
item := ClaudeContentItem{
Type: "tool_use",
ID: toolID,
Name: part.FunctionCall.Name,
Input: part.FunctionCall.Args,
}
if signature != "" {
item.Signature = signature
}
p.contentBlocks = append(p.contentBlocks, item)
return
}
// 2. Text 处理
if part.Text != "" || part.Thought {
if part.Thought {
// Thinking part
p.flushText()
// 处理 trailingSignature
if p.trailingSignature != "" {
p.flushThinking()
p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
Type: "thinking",
Thinking: "",
Signature: p.trailingSignature,
})
p.trailingSignature = ""
}
p.thinkingBuilder += part.Text
if signature != "" {
p.thinkingSignature = signature
}
} else {
// 普通 Text
if part.Text == "" {
// 空 text 带签名 - 暂存
if signature != "" {
p.trailingSignature = signature
}
return
}
p.flushThinking()
// 处理之前的 trailingSignature
if p.trailingSignature != "" {
p.flushText()
p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
Type: "thinking",
Thinking: "",
Signature: p.trailingSignature,
})
p.trailingSignature = ""
}
p.textBuilder += part.Text
// 非空 text 带签名 - 立即刷新并输出空 thinking 块
if signature != "" {
p.flushText()
p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
Type: "thinking",
Thinking: "",
Signature: signature,
})
}
}
}
// 3. InlineData (Image) 处理
if part.InlineData != nil && part.InlineData.Data != "" {
p.flushThinking()
markdownImg := fmt.Sprintf("![image](data:%s;base64,%s)",
part.InlineData.MimeType, part.InlineData.Data)
p.textBuilder += markdownImg
p.flushText()
}
}
// flushText 刷新 text builder
func (p *NonStreamingProcessor) flushText() {
if p.textBuilder == "" {
return
}
p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
Type: "text",
Text: p.textBuilder,
})
p.textBuilder = ""
}
// flushThinking 刷新 thinking builder
func (p *NonStreamingProcessor) flushThinking() {
if p.thinkingBuilder == "" && p.thinkingSignature == "" {
return
}
p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
Type: "thinking",
Thinking: p.thinkingBuilder,
Signature: p.thinkingSignature,
})
p.thinkingBuilder = ""
p.thinkingSignature = ""
}
// buildResponse 构建最终响应
func (p *NonStreamingProcessor) buildResponse(geminiResp *GeminiResponse, responseID, originalModel string) *ClaudeResponse {
var finishReason string
if len(geminiResp.Candidates) > 0 {
finishReason = geminiResp.Candidates[0].FinishReason
}
stopReason := "end_turn"
if p.hasToolCall {
stopReason = "tool_use"
} else if finishReason == "MAX_TOKENS" {
stopReason = "max_tokens"
}
usage := ClaudeUsage{}
if geminiResp.UsageMetadata != nil {
usage.InputTokens = geminiResp.UsageMetadata.PromptTokenCount
usage.OutputTokens = geminiResp.UsageMetadata.CandidatesTokenCount
}
// 生成响应 ID
respID := responseID
if respID == "" {
respID = geminiResp.ResponseID
}
if respID == "" {
respID = "msg_" + generateRandomID()
}
return &ClaudeResponse{
ID: respID,
Type: "message",
Role: "assistant",
Model: originalModel,
Content: p.contentBlocks,
StopReason: stopReason,
Usage: usage,
}
}
// generateRandomID 生成随机 ID
func generateRandomID() string {
const chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
result := make([]byte, 12)
for i := range result {
result[i] = chars[i%len(chars)]
}
return string(result)
}

455
backend/internal/pkg/antigravity/stream_transformer.go Normal file
View File

@@ -0,0 +1,455 @@
package antigravity
import (
"bytes"
"encoding/json"
"fmt"
"strings"
)
// BlockType 内容块类型
type BlockType int
const (
BlockTypeNone BlockType = iota
BlockTypeText
BlockTypeThinking
BlockTypeFunction
)
// StreamingProcessor 流式响应处理器
type StreamingProcessor struct {
blockType BlockType
blockIndex int
messageStartSent bool
messageStopSent bool
usedTool bool
pendingSignature string
trailingSignature string
originalModel string
// 累计 usage
inputTokens int
outputTokens int
}
// NewStreamingProcessor 创建流式响应处理器
func NewStreamingProcessor(originalModel string) *StreamingProcessor {
return &StreamingProcessor{
blockType: BlockTypeNone,
originalModel: originalModel,
}
}
// ProcessLine 处理 SSE 行，返回 Claude SSE 事件
func (p *StreamingProcessor) ProcessLine(line string) []byte {
line = strings.TrimSpace(line)
if line == "" || !strings.HasPrefix(line, "data:") {
return nil
}
data := strings.TrimSpace(strings.TrimPrefix(line, "data:"))
if data == "" || data == "[DONE]" {
return nil
}
// 解包 v1internal 响应
var v1Resp V1InternalResponse
if err := json.Unmarshal([]byte(data), &v1Resp); err != nil {
// 尝试直接解析为 GeminiResponse
var directResp GeminiResponse
if err2 := json.Unmarshal([]byte(data), &directResp); err2 != nil {
return nil
}
v1Resp.Response = directResp
v1Resp.ResponseID = directResp.ResponseID
v1Resp.ModelVersion = directResp.ModelVersion
}
geminiResp := &v1Resp.Response
var result bytes.Buffer
// 发送 message_start
if !p.messageStartSent {
result.Write(p.emitMessageStart(&v1Resp))
}
// 更新 usage
if geminiResp.UsageMetadata != nil {
p.inputTokens = geminiResp.UsageMetadata.PromptTokenCount
p.outputTokens = geminiResp.UsageMetadata.CandidatesTokenCount
}
// 处理 parts
if len(geminiResp.Candidates) > 0 && geminiResp.Candidates[0].Content != nil {
for _, part := range geminiResp.Candidates[0].Content.Parts {
result.Write(p.processPart(&part))
}
}
// 检查是否结束
if len(geminiResp.Candidates) > 0 {
finishReason := geminiResp.Candidates[0].FinishReason
if finishReason != "" {
result.Write(p.emitFinish(finishReason))
}
}
return result.Bytes()
}
// Finish 结束处理，返回最终事件和用量
func (p *StreamingProcessor) Finish() ([]byte, *ClaudeUsage) {
var result bytes.Buffer
if !p.messageStopSent {
result.Write(p.emitFinish(""))
}
usage := &ClaudeUsage{
InputTokens: p.inputTokens,
OutputTokens: p.outputTokens,
}
return result.Bytes(), usage
}
// emitMessageStart 发送 message_start 事件
func (p *StreamingProcessor) emitMessageStart(v1Resp *V1InternalResponse) []byte {
if p.messageStartSent {
return nil
}
usage := ClaudeUsage{}
if v1Resp.Response.UsageMetadata != nil {
usage.InputTokens = v1Resp.Response.UsageMetadata.PromptTokenCount
usage.OutputTokens = v1Resp.Response.UsageMetadata.CandidatesTokenCount
}
responseID := v1Resp.ResponseID
if responseID == "" {
responseID = v1Resp.Response.ResponseID
}
if responseID == "" {
responseID = "msg_" + generateRandomID()
}
message := map[string]interface{}{
"id": responseID,
"type": "message",
"role": "assistant",
"content": []interface{}{},
"model": p.originalModel,
"stop_reason": nil,
"stop_sequence": nil,
"usage": usage,
}
event := map[string]interface{}{
"type": "message_start",
"message": message,
}
p.messageStartSent = true
return p.formatSSE("message_start", event)
}
// processPart 处理单个 part
func (p *StreamingProcessor) processPart(part *GeminiPart) []byte {
var result bytes.Buffer
signature := part.ThoughtSignature
// 1. FunctionCall 处理
if part.FunctionCall != nil {
// 先处理 trailingSignature
if p.trailingSignature != "" {
result.Write(p.endBlock())
result.Write(p.emitEmptyThinkingWithSignature(p.trailingSignature))
p.trailingSignature = ""
}
result.Write(p.processFunctionCall(part.FunctionCall, signature))
return result.Bytes()
}
// 2. Text 处理
if part.Text != "" || part.Thought {
if part.Thought {
result.Write(p.processThinking(part.Text, signature))
} else {
result.Write(p.processText(part.Text, signature))
}
}
// 3. InlineData (Image) 处理
if part.InlineData != nil && part.InlineData.Data != "" {
markdownImg := fmt.Sprintf("![image](data:%s;base64,%s)",
part.InlineData.MimeType, part.InlineData.Data)
result.Write(p.processText(markdownImg, ""))
}
return result.Bytes()
}
// processThinking 处理 thinking
func (p *StreamingProcessor) processThinking(text, signature string) []byte {
var result bytes.Buffer
// 处理之前的 trailingSignature
if p.trailingSignature != "" {
result.Write(p.endBlock())
result.Write(p.emitEmptyThinkingWithSignature(p.trailingSignature))
p.trailingSignature = ""
}
// 开始或继续 thinking 块
if p.blockType != BlockTypeThinking {
result.Write(p.startBlock(BlockTypeThinking, map[string]interface{}{
"type": "thinking",
"thinking": "",
}))
}
if text != "" {
result.Write(p.emitDelta("thinking_delta", map[string]interface{}{
"thinking": text,
}))
}
// 暂存签名
if signature != "" {
p.pendingSignature = signature
}
return result.Bytes()
}
// processText 处理普通 text
func (p *StreamingProcessor) processText(text, signature string) []byte {
var result bytes.Buffer
// 空 text 带签名 - 暂存
if text == "" {
if signature != "" {
p.trailingSignature = signature
}
return nil
}
// 处理之前的 trailingSignature
if p.trailingSignature != "" {
result.Write(p.endBlock())
result.Write(p.emitEmptyThinkingWithSignature(p.trailingSignature))
p.trailingSignature = ""
}
// 非空 text 带签名 - 特殊处理
if signature != "" {
result.Write(p.startBlock(BlockTypeText, map[string]interface{}{
"type": "text",
"text": "",
}))
result.Write(p.emitDelta("text_delta", map[string]interface{}{
"text": text,
}))
result.Write(p.endBlock())
result.Write(p.emitEmptyThinkingWithSignature(signature))
return result.Bytes()
}
// 普通 text (无签名)
if p.blockType != BlockTypeText {
result.Write(p.startBlock(BlockTypeText, map[string]interface{}{
"type": "text",
"text": "",
}))
}
result.Write(p.emitDelta("text_delta", map[string]interface{}{
"text": text,
}))
return result.Bytes()
}
// processFunctionCall 处理 function call
func (p *StreamingProcessor) processFunctionCall(fc *GeminiFunctionCall, signature string) []byte {
var result bytes.Buffer
p.usedTool = true
toolID := fc.ID
if toolID == "" {
toolID = fmt.Sprintf("%s-%s", fc.Name, generateRandomID())
}
toolUse := map[string]interface{}{
"type": "tool_use",
"id": toolID,
"name": fc.Name,
"input": map[string]interface{}{}, // 必须为空，参数通过 delta 发送
}
if signature != "" {
toolUse["signature"] = signature
}
result.Write(p.startBlock(BlockTypeFunction, toolUse))
// 发送 input_json_delta
if fc.Args != nil {
argsJSON, _ := json.Marshal(fc.Args)
result.Write(p.emitDelta("input_json_delta", map[string]interface{}{
"partial_json": string(argsJSON),
}))
}
result.Write(p.endBlock())
return result.Bytes()
}
// startBlock 开始新的内容块
func (p *StreamingProcessor) startBlock(blockType BlockType, contentBlock map[string]interface{}) []byte {
var result bytes.Buffer
if p.blockType != BlockTypeNone {
result.Write(p.endBlock())
}
event := map[string]interface{}{
"type": "content_block_start",
"index": p.blockIndex,
"content_block": contentBlock,
}
result.Write(p.formatSSE("content_block_start", event))
p.blockType = blockType
return result.Bytes()
}
// endBlock 结束当前内容块
func (p *StreamingProcessor) endBlock() []byte {
if p.blockType == BlockTypeNone {
return nil
}
var result bytes.Buffer
// Thinking 块结束时发送暂存的签名
if p.blockType == BlockTypeThinking && p.pendingSignature != "" {
result.Write(p.emitDelta("signature_delta", map[string]interface{}{
"signature": p.pendingSignature,
}))
p.pendingSignature = ""
}
event := map[string]interface{}{
"type": "content_block_stop",
"index": p.blockIndex,
}
result.Write(p.formatSSE("content_block_stop", event))
p.blockIndex++
p.blockType = BlockTypeNone
return result.Bytes()
}
// emitDelta 发送 delta 事件
func (p *StreamingProcessor) emitDelta(deltaType string, deltaContent map[string]interface{}) []byte {
delta := map[string]interface{}{
"type": deltaType,
}
for k, v := range deltaContent {
delta[k] = v
}
event := map[string]interface{}{
"type": "content_block_delta",
"index": p.blockIndex,
"delta": delta,
}
return p.formatSSE("content_block_delta", event)
}
// emitEmptyThinkingWithSignature 发送空 thinking 块承载签名
func (p *StreamingProcessor) emitEmptyThinkingWithSignature(signature string) []byte {
var result bytes.Buffer
result.Write(p.startBlock(BlockTypeThinking, map[string]interface{}{
"type": "thinking",
"thinking": "",
}))
result.Write(p.emitDelta("thinking_delta", map[string]interface{}{
"thinking": "",
}))
result.Write(p.emitDelta("signature_delta", map[string]interface{}{
"signature": signature,
}))
result.Write(p.endBlock())
return result.Bytes()
}
// emitFinish 发送结束事件
func (p *StreamingProcessor) emitFinish(finishReason string) []byte {
var result bytes.Buffer
// 关闭最后一个块
result.Write(p.endBlock())
// 处理 trailingSignature
if p.trailingSignature != "" {
result.Write(p.emitEmptyThinkingWithSignature(p.trailingSignature))
p.trailingSignature = ""
}
// 确定 stop_reason
stopReason := "end_turn"
if p.usedTool {
stopReason = "tool_use"
} else if finishReason == "MAX_TOKENS" {
stopReason = "max_tokens"
}
usage := ClaudeUsage{
InputTokens: p.inputTokens,
OutputTokens: p.outputTokens,
}
deltaEvent := map[string]interface{}{
"type": "message_delta",
"delta": map[string]interface{}{
"stop_reason": stopReason,
"stop_sequence": nil,
},
"usage": usage,
}
result.Write(p.formatSSE("message_delta", deltaEvent))
if !p.messageStopSent {
stopEvent := map[string]interface{}{
"type": "message_stop",
}
result.Write(p.formatSSE("message_stop", stopEvent))
p.messageStopSent = true
}
return result.Bytes()
}
// formatSSE 格式化 SSE 事件
func (p *StreamingProcessor) formatSSE(eventType string, data interface{}) []byte {
jsonData, err := json.Marshal(data)
if err != nil {
return nil
}
return []byte(fmt.Sprintf("event: %s\ndata: %s\n\n", eventType, string(jsonData)))
}

151
backend/internal/service/antigravity_gateway_service.go
View File

@@ -47,9 +47,10 @@ var antigravityModelMapping = map[string]string{
"claude-sonnet-4-5-20250929": "claude-sonnet-4-5-thinking",
"claude-opus-4": "claude-opus-4-5-thinking",
"claude-opus-4-5-20251101": "claude-opus-4-5-thinking",
"claude-haiku-4": "claude-sonnet-4-5",
"claude-3-haiku-20240307": "claude-sonnet-4-5",
"claude-haiku-4-5-20251001": "claude-sonnet-4-5",
"claude-haiku-4": "gemini-3-flash",
"claude-haiku-4-5": "gemini-3-flash",
"claude-3-haiku-20240307": "gemini-3-flash",
"claude-haiku-4-5-20251001": "gemini-3-flash",
}
// AntigravityGatewayService 处理 Antigravity 平台的 API 转发
@@ -189,26 +190,23 @@ func (s *AntigravityGatewayService) unwrapSSELine(line string) string {
return line
}
// Forward 转发 Claude 协议请求
// Forward 转发 Claude 协议请求（Claude → Gemini 转换）
func (s *AntigravityGatewayService) Forward(ctx context.Context, c *gin.Context, account *Account, body []byte) (*ForwardResult, error) {
startTime := time.Now()
// 解析请求获取 model 和 stream
var req struct {
Model string `json:"model"`
Stream bool `json:"stream"`
// 解析 Claude 请求
var claudeReq antigravity.ClaudeRequest
if err := json.Unmarshal(body, &claudeReq); err != nil {
return nil, fmt.Errorf("parse claude request: %w", err)
}
if err := json.Unmarshal(body, &req); err != nil {
return nil, fmt.Errorf("parse request: %w", err)
}
if strings.TrimSpace(req.Model) == "" {
if strings.TrimSpace(claudeReq.Model) == "" {
return nil, fmt.Errorf("missing model")
}
originalModel := req.Model
mappedModel := s.getMappedModel(account, req.Model)
if mappedModel != req.Model {
log.Printf("Antigravity model mapping: %s -> %s (account: %s)", req.Model, mappedModel, account.Name)
originalModel := claudeReq.Model
mappedModel := s.getMappedModel(account, claudeReq.Model)
if mappedModel != claudeReq.Model {
log.Printf("Antigravity model mapping: %s -> %s (account: %s)", claudeReq.Model, mappedModel, account.Name)
}
// 获取 access_token
@@ -232,26 +230,26 @@ func (s *AntigravityGatewayService) Forward(ctx context.Context, c *gin.Context,
proxyURL = account.Proxy.URL()
}
// 包装请求
wrappedBody, err := s.wrapV1InternalRequest(projectID, mappedModel, body)
// 转换 Claude 请求为 Gemini 格式
geminiBody, err := antigravity.TransformClaudeToGemini(&claudeReq, projectID, mappedModel)
if err != nil {
return nil, err
return nil, fmt.Errorf("transform request: %w", err)
}
// 构建上游 URL
action := "generateContent"
if req.Stream {
if claudeReq.Stream {
action = "streamGenerateContent"
}
fullURL := fmt.Sprintf("%s/v1internal:%s", antigravity.BaseURL, action)
if req.Stream {
if claudeReq.Stream {
fullURL += "?alt=sse"
}
// 重试循环
var resp *http.Response
for attempt := 1; attempt <= antigravityMaxRetries; attempt++ {
upstreamReq, err := http.NewRequestWithContext(ctx, http.MethodPost, fullURL, bytes.NewReader(wrappedBody))
upstreamReq, err := http.NewRequestWithContext(ctx, http.MethodPost, fullURL, bytes.NewReader(geminiBody))
if err != nil {
return nil, err
}
@@ -313,15 +311,15 @@ func (s *AntigravityGatewayService) Forward(ctx context.Context, c *gin.Context,
var usage *ClaudeUsage
var firstTokenMs *int
if req.Stream {
streamRes, err := s.handleStreamingResponse(c, resp, startTime, originalModel)
if claudeReq.Stream {
streamRes, err := s.handleClaudeStreamingResponse(c, resp, startTime, originalModel)
if err != nil {
return nil, err
}
usage = streamRes.usage
firstTokenMs = streamRes.firstTokenMs
} else {
usage, err = s.handleNonStreamingResponse(c, resp, originalModel)
usage, err = s.handleClaudeNonStreamingResponse(c, resp, originalModel)
if err != nil {
return nil, err
}
@@ -331,7 +329,7 @@ func (s *AntigravityGatewayService) Forward(ctx context.Context, c *gin.Context,
RequestID: requestID,
Usage: *usage,
Model: originalModel, // 使用原始模型用于计费和日志
Stream: req.Stream,
Stream: claudeReq.Stream,
Duration: time.Since(startTime),
FirstTokenMs: firstTokenMs,
}, nil
@@ -782,6 +780,9 @@ func (s *AntigravityGatewayService) writeClaudeError(c *gin.Context, status int,
}
func (s *AntigravityGatewayService) writeMappedClaudeError(c *gin.Context, upstreamStatus int, body []byte) error {
// 记录上游错误详情便于调试
log.Printf("Antigravity upstream error %d: %s", upstreamStatus, string(body))
var statusCode int
var errType, errMsg string
@@ -843,3 +844,101 @@ func (s *AntigravityGatewayService) writeGoogleError(c *gin.Context, status int,
})
return fmt.Errorf("%s", message)
}
// handleClaudeNonStreamingResponse 处理 Claude 非流式响应（Gemini → Claude 转换）
func (s *AntigravityGatewayService) handleClaudeNonStreamingResponse(c *gin.Context, resp *http.Response, originalModel string) (*ClaudeUsage, error) {
body, err := io.ReadAll(io.LimitReader(resp.Body, 8<<20))
if err != nil {
return nil, s.writeClaudeError(c, http.StatusBadGateway, "upstream_error", "Failed to read upstream response")
}
// 转换 Gemini 响应为 Claude 格式
claudeResp, agUsage, err := antigravity.TransformGeminiToClaude(body, originalModel)
if err != nil {
log.Printf("Transform Gemini to Claude failed: %v, body: %s", err, string(body))
return nil, s.writeClaudeError(c, http.StatusBadGateway, "upstream_error", "Failed to parse upstream response")
}
c.Data(http.StatusOK, "application/json", claudeResp)
// 转换为 service.ClaudeUsage
usage := &ClaudeUsage{
InputTokens: agUsage.InputTokens,
OutputTokens: agUsage.OutputTokens,
CacheCreationInputTokens: agUsage.CacheCreationInputTokens,
CacheReadInputTokens: agUsage.CacheReadInputTokens,
}
return usage, nil
}
// handleClaudeStreamingResponse 处理 Claude 流式响应（Gemini SSE → Claude SSE 转换）
func (s *AntigravityGatewayService) handleClaudeStreamingResponse(c *gin.Context, resp *http.Response, startTime time.Time, originalModel string) (*antigravityStreamResult, error) {
c.Header("Content-Type", "text/event-stream")
c.Header("Cache-Control", "no-cache")
c.Header("Connection", "keep-alive")
c.Header("X-Accel-Buffering", "no")
c.Status(http.StatusOK)
flusher, ok := c.Writer.(http.Flusher)
if !ok {
return nil, errors.New("streaming not supported")
}
processor := antigravity.NewStreamingProcessor(originalModel)
var firstTokenMs *int
reader := bufio.NewReader(resp.Body)
// 辅助函数：转换 antigravity.ClaudeUsage 到 service.ClaudeUsage
convertUsage := func(agUsage *antigravity.ClaudeUsage) *ClaudeUsage {
if agUsage == nil {
return &ClaudeUsage{}
}
return &ClaudeUsage{
InputTokens: agUsage.InputTokens,
OutputTokens: agUsage.OutputTokens,
CacheCreationInputTokens: agUsage.CacheCreationInputTokens,
CacheReadInputTokens: agUsage.CacheReadInputTokens,
}
}
for {
line, err := reader.ReadString('\n')
if err != nil && !errors.Is(err, io.EOF) {
return nil, fmt.Errorf("stream read error: %w", err)
}
if len(line) > 0 {
// 处理 SSE 行，转换为 Claude 格式
claudeEvents := processor.ProcessLine(strings.TrimRight(line, "\r\n"))
if len(claudeEvents) > 0 {
if firstTokenMs == nil {
ms := int(time.Since(startTime).Milliseconds())
firstTokenMs = &ms
}
if _, writeErr := c.Writer.Write(claudeEvents); writeErr != nil {
finalEvents, agUsage := processor.Finish()
if len(finalEvents) > 0 {
_, _ = c.Writer.Write(finalEvents)
}
return &antigravityStreamResult{usage: convertUsage(agUsage), firstTokenMs: firstTokenMs}, writeErr
}
flusher.Flush()
}
}
if errors.Is(err, io.EOF) {
break
}
}
// 发送结束事件
finalEvents, agUsage := processor.Finish()
if len(finalEvents) > 0 {
_, _ = c.Writer.Write(finalEvents)
flusher.Flush()
}
return &antigravityStreamResult{usage: convertUsage(agUsage), firstTokenMs: firstTokenMs}, nil
}

20
backend/internal/service/antigravity_model_mapping_test.go
View File

@@ -104,16 +104,28 @@ func TestAntigravityGatewayService_GetMappedModel(t *testing.T) {
expected: "claude-opus-4-5-thinking",
},
{
name: "系统映射 - claude-haiku-4",
name: "系统映射 - claude-haiku-4 → gemini-3-flash",
requestedModel: "claude-haiku-4",
accountMapping: nil,
expected: "claude-sonnet-4-5",
expected: "gemini-3-flash",
},
{
name: "系统映射 - claude-3-haiku-20240307",
name: "系统映射 - claude-haiku-4-5 → gemini-3-flash",
requestedModel: "claude-haiku-4-5",
accountMapping: nil,
expected: "gemini-3-flash",
},
{
name: "系统映射 - claude-3-haiku-20240307 → gemini-3-flash",
requestedModel: "claude-3-haiku-20240307",
accountMapping: nil,
expected: "claude-sonnet-4-5",
expected: "gemini-3-flash",
},
{
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accountMapping: nil,
expected: "gemini-3-flash",
},
{
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