refactor: rename action→activity, statemachine→workflow, remove HTTP API layer
- action/ → activity/ (Temporal activities) - statemachine/ → workflow/ (Temporal workflows) - Removed internal/api/ and cmd/server/ (api-gw handles HTTP, Temporal is the API) - Created pkg/types/types.go as single source of truth for all shared types - Extracted CallRoleLLM helper (DRY: implementer/planner/judge shared pattern) - Fixed circular import: workflow_graph_query uses string activity names - Fixed logger.logf → logger.Info/Warn (method didn't exist) - Fixed routing types: added Branches, Activity, BackoffSeconds, TaskActivity - Fixed db.Canvas.Name, db.Client→DB, GetWorkflow→FetchWorkflow - Removed unused imports - All tests pass, build clean, vet clean
This commit is contained in:
@@ -0,0 +1,196 @@
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package llm
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"os"
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"github.com/rockliang/poimen/workflows/pkg/types"
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)
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var (
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// LocalLLMBaseURL is the base URL for the local LLM API (OpenAI-compatible)
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// Can be overridden via LOCAL_LLM_BASE_URL env var (for Kubernetes internal service)
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LocalLLMBaseURL string
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)
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func init() {
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LocalLLMBaseURL = os.Getenv("LOCAL_LLM_BASE_URL")
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if LocalLLMBaseURL == "" {
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// Default: external hostname (for local dev)
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LocalLLMBaseURL = "https://api.riotpiao.com"
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}
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}
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var (
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// SupportedModels maps local model names to verify they exist
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SupportedModels = map[string]bool{
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"reasoning": true, // Reasoning model for planner/judge
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"ornith:35b": true, // Ornith 35B for implementer
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"ornith:13b": true, // Alternative Ornith size
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"qwen2.5:3b": true, // Qwen alternative
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}
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)
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// OpenAIClient is a wrapper around the local OpenAI-compatible API.
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type OpenAIClient struct {
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baseURL string
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httpClient *http.Client
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}
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// NewClient creates a new OpenAIClient pointing to the local LLM API.
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func NewClient() (*OpenAIClient, error) {
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return &OpenAIClient{
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baseURL: LocalLLMBaseURL,
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httpClient: &http.Client{
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Timeout: 0, // No timeout for streaming
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},
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}, nil
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}
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// MessageInput is the input to CreateMessage.
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type MessageInput struct {
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Model types.ModelSpec
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SystemPrompt string
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Messages []MessageParam
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AuthToken string // Optional JWT token for authenticated endpoints
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}
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// MessageParam represents a message parameter.
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type MessageParam struct {
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Role string
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Content string
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}
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// openaiRequest is the request body for the OpenAI-compatible API.
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type openaiRequest struct {
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Model string `json:"model"`
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Messages []openaiMessage `json:"messages"`
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Stream bool `json:"stream"`
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Temp float64 `json:"temperature,omitempty"`
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MaxToken int `json:"max_tokens,omitempty"`
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}
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type openaiMessage struct {
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Role string `json:"role"`
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Content string `json:"content"`
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}
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// openaiResponse is the response from the OpenAI-compatible API.
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type openaiResponse struct {
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Choices []struct {
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Message struct {
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Content string `json:"content"`
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} `json:"message"`
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} `json:"choices"`
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Usage struct {
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PromptTokens int `json:"prompt_tokens"`
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CompletionTokens int `json:"completion_tokens"`
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TotalTokens int `json:"total_tokens"`
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} `json:"usage"`
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}
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// CreateMessage calls the local OpenAI-compatible API and returns the response text.
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func (c *OpenAIClient) CreateMessage(ctx context.Context, in MessageInput) (string, error) {
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// Validate model
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if !SupportedModels[in.Model.ModelID] {
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return "", fmt.Errorf("unsupported model: %s (supported: reasoning, ornith:35b)", in.Model.ModelID)
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}
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// Build request
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messages := []openaiMessage{
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{
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Role: "system",
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Content: in.SystemPrompt,
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},
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}
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for _, msg := range in.Messages {
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messages = append(messages, openaiMessage{
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Role: msg.Role,
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Content: msg.Content,
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})
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}
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req := openaiRequest{
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Model: in.Model.ModelID,
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Messages: messages,
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Stream: false,
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}
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// Marshal request
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reqBody, err := json.Marshal(req)
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if err != nil {
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return "", fmt.Errorf("failed to marshal request: %w", err)
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}
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// Create HTTP request
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httpReq, err := http.NewRequestWithContext(ctx, "POST",
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fmt.Sprintf("%s/v1/chat/completions", c.baseURL),
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bytes.NewReader(reqBody))
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if err != nil {
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return "", fmt.Errorf("failed to create HTTP request: %w", err)
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}
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httpReq.Header.Set("Content-Type", "application/json")
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// Add authentication header if token provided
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if in.AuthToken != "" {
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httpReq.Header.Set("Authorization", fmt.Sprintf("Bearer %s", in.AuthToken))
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}
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// Send request
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resp, err := c.httpClient.Do(httpReq)
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if err != nil {
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return "", fmt.Errorf("failed to connect to local LLM API at %s: %w (ensure homelab-frontend is running)", c.baseURL, err)
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}
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defer resp.Body.Close()
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// Read response
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respBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", fmt.Errorf("failed to read response body: %w", err)
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}
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// Check status
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if resp.StatusCode != http.StatusOK {
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return "", fmt.Errorf("local LLM API returned status %d: %s", resp.StatusCode, string(respBody))
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}
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// Unmarshal response
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var respObj openaiResponse
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if err := json.Unmarshal(respBody, &respObj); err != nil {
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return "", fmt.Errorf("failed to unmarshal response: %w", err)
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}
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// Extract content
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if len(respObj.Choices) == 0 {
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return "", fmt.Errorf("no choices in response from local LLM API")
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}
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return respObj.Choices[0].Message.Content, nil
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}
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// HealthCheck verifies the local LLM API is reachable and has the required models.
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func (c *OpenAIClient) HealthCheck(ctx context.Context) error {
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httpReq, err := http.NewRequestWithContext(ctx, "GET",
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fmt.Sprintf("%s/readyz", c.baseURL), nil)
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if err != nil {
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return err
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}
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resp, err := c.httpClient.Do(httpReq)
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if err != nil {
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return fmt.Errorf("local LLM API at %s is unreachable: %w", c.baseURL, err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("local LLM API health check failed with status %d", resp.StatusCode)
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}
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return nil
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}
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