Refactor translator packages for OpenAI Chat Completions

- Renamed `openai` packages to `chat_completions` across translator modules.
- Introduced `openai_responses_handlers` with handlers for `/v1/models` and OpenAI-compatible chat completions endpoints.
- Updated constants and registry identifiers for OpenAI response type.
- Simplified request/response conversions and added detailed retry/error handling.
- Added `golang.org/x/crypto` for additional cryptographic functions.
This commit is contained in:
Luis Pater
2025-09-01 10:07:33 +08:00
parent 1f46dc2715
commit 305916f5a9
2 changed files with 394 additions and 2 deletions

View File

@@ -1,5 +1,212 @@
package responses
import (
"strings"
"github.com/tidwall/gjson"
"github.com/tidwall/sjson"
)
func ConvertOpenAIResponsesRequestToGemini(modelName string, rawJSON []byte, stream bool) []byte {
return nil
// Note: modelName and stream parameters are part of the fixed method signature
_ = modelName // Unused but required by interface
_ = stream // Unused but required by interface
// Base Gemini API template
out := `{"contents":[]}`
root := gjson.ParseBytes(rawJSON)
// Extract system instruction from OpenAI "instructions" field
if instructions := root.Get("instructions"); instructions.Exists() {
systemInstr := `{"parts":[{"text":""}]}`
systemInstr, _ = sjson.Set(systemInstr, "parts.0.text", instructions.String())
out, _ = sjson.SetRaw(out, "system_instruction", systemInstr)
}
// Convert input messages to Gemini contents format
if input := root.Get("input"); input.Exists() && input.IsArray() {
input.ForEach(func(_, item gjson.Result) bool {
itemType := item.Get("type").String()
switch itemType {
case "message":
// Handle regular messages
role := item.Get("role").String()
// Map OpenAI roles to Gemini roles
if role == "assistant" {
role = "model"
}
content := `{"role":"","parts":[]}`
content, _ = sjson.Set(content, "role", role)
if contentArray := item.Get("content"); contentArray.Exists() && contentArray.IsArray() {
contentArray.ForEach(func(_, contentItem gjson.Result) bool {
contentType := contentItem.Get("type").String()
switch contentType {
case "input_text":
// Convert input_text to text part
if text := contentItem.Get("text"); text.Exists() {
textPart := `{"text":""}`
textPart, _ = sjson.Set(textPart, "text", text.String())
content, _ = sjson.SetRaw(content, "parts.-1", textPart)
}
case "output_text":
// Convert output_text to text part (for multi-turn conversations)
if text := contentItem.Get("text"); text.Exists() {
textPart := `{"text":""}`
textPart, _ = sjson.Set(textPart, "text", text.String())
content, _ = sjson.SetRaw(content, "parts.-1", textPart)
}
}
return true
})
}
// Only add content if it has parts
if parts := gjson.Get(content, "parts"); parts.Exists() && len(parts.Array()) > 0 {
out, _ = sjson.SetRaw(out, "contents.-1", content)
}
case "function_call":
// Handle function calls - convert to model message with functionCall
name := item.Get("name").String()
arguments := item.Get("arguments").String()
modelContent := `{"role":"model","parts":[]}`
functionCall := `{"functionCall":{"name":"","args":{}}}`
functionCall, _ = sjson.Set(functionCall, "functionCall.name", name)
// Parse arguments JSON string and set as args object
if arguments != "" {
argsResult := gjson.Parse(arguments)
functionCall, _ = sjson.SetRaw(functionCall, "functionCall.args", argsResult.Raw)
}
modelContent, _ = sjson.SetRaw(modelContent, "parts.-1", functionCall)
out, _ = sjson.SetRaw(out, "contents.-1", modelContent)
case "function_call_output":
// Handle function call outputs - convert to function message with functionResponse
callID := item.Get("call_id").String()
output := item.Get("output").String()
functionContent := `{"role":"function","parts":[]}`
functionResponse := `{"functionResponse":{"name":"","response":{}}}`
// We need to extract the function name from the previous function_call
// For now, we'll use a placeholder or extract from context if available
functionName := "unknown" // This should ideally be matched with the corresponding function_call
// Find the corresponding function call name by matching call_id
// We need to look back through the input array to find the matching call
if inputArray := root.Get("input"); inputArray.Exists() && inputArray.IsArray() {
inputArray.ForEach(func(_, prevItem gjson.Result) bool {
if prevItem.Get("type").String() == "function_call" && prevItem.Get("call_id").String() == callID {
functionName = prevItem.Get("name").String()
return false // Stop iteration
}
return true
})
}
functionResponse, _ = sjson.Set(functionResponse, "functionResponse.name", functionName)
// Parse output JSON string and set as response content
if output != "" {
outputResult := gjson.Parse(output)
functionResponse, _ = sjson.SetRaw(functionResponse, "functionResponse.response.content", outputResult.Raw)
}
functionContent, _ = sjson.SetRaw(functionContent, "parts.-1", functionResponse)
out, _ = sjson.SetRaw(out, "contents.-1", functionContent)
}
return true
})
}
// Convert tools to Gemini functionDeclarations format
if tools := root.Get("tools"); tools.Exists() && tools.IsArray() {
geminiTools := `[{"functionDeclarations":[]}]`
tools.ForEach(func(_, tool gjson.Result) bool {
if tool.Get("type").String() == "function" {
funcDecl := `{"name":"","description":"","parameters":{}}`
if name := tool.Get("name"); name.Exists() {
funcDecl, _ = sjson.Set(funcDecl, "name", name.String())
}
if desc := tool.Get("description"); desc.Exists() {
funcDecl, _ = sjson.Set(funcDecl, "description", desc.String())
}
if params := tool.Get("parameters"); params.Exists() {
// Convert parameter types from OpenAI format to Gemini format
cleaned := params.Raw
// Convert type values to uppercase for Gemini
paramsResult := gjson.Parse(cleaned)
if properties := paramsResult.Get("properties"); properties.Exists() {
properties.ForEach(func(key, value gjson.Result) bool {
if propType := value.Get("type"); propType.Exists() {
upperType := strings.ToUpper(propType.String())
cleaned, _ = sjson.Set(cleaned, "properties."+key.String()+".type", upperType)
}
return true
})
}
// Set the overall type to OBJECT
cleaned, _ = sjson.Set(cleaned, "type", "OBJECT")
funcDecl, _ = sjson.SetRaw(funcDecl, "parameters", cleaned)
}
geminiTools, _ = sjson.SetRaw(geminiTools, "0.functionDeclarations.-1", funcDecl)
}
return true
})
// Only add tools if there are function declarations
if funcDecls := gjson.Get(geminiTools, "0.functionDeclarations"); funcDecls.Exists() && len(funcDecls.Array()) > 0 {
out, _ = sjson.SetRaw(out, "tools", geminiTools)
}
}
// Handle generation config from OpenAI format
if maxOutputTokens := root.Get("max_output_tokens"); maxOutputTokens.Exists() {
genConfig := `{"maxOutputTokens":0}`
genConfig, _ = sjson.Set(genConfig, "maxOutputTokens", maxOutputTokens.Int())
out, _ = sjson.SetRaw(out, "generationConfig", genConfig)
}
// Handle temperature if present
if temperature := root.Get("temperature"); temperature.Exists() {
if !gjson.Get(out, "generationConfig").Exists() {
out, _ = sjson.SetRaw(out, "generationConfig", `{}`)
}
out, _ = sjson.Set(out, "generationConfig.temperature", temperature.Float())
}
// Handle top_p if present
if topP := root.Get("top_p"); topP.Exists() {
if !gjson.Get(out, "generationConfig").Exists() {
out, _ = sjson.SetRaw(out, "generationConfig", `{}`)
}
out, _ = sjson.Set(out, "generationConfig.topP", topP.Float())
}
// Handle stop sequences
if stopSequences := root.Get("stop_sequences"); stopSequences.Exists() && stopSequences.IsArray() {
if !gjson.Get(out, "generationConfig").Exists() {
out, _ = sjson.SetRaw(out, "generationConfig", `{}`)
}
var sequences []string
stopSequences.ForEach(func(_, seq gjson.Result) bool {
sequences = append(sequences, seq.String())
return true
})
out, _ = sjson.Set(out, "generationConfig.stopSequences", sequences)
}
return []byte(out)
}