feat: add experimental ACP mode (--experimental-acp) #186
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| //go:build ignore | ||
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| package main | ||
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| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "os" | ||
| "os/signal" | ||
| "strings" | ||
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| acp "github.com/coder/acp-go-sdk" | ||
| ) | ||
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| // ScriptEntry defines a single entry in the test script. | ||
| type ScriptEntry struct { | ||
| ExpectMessage string `json:"expectMessage"` | ||
| ThinkDurationMS int64 `json:"thinkDurationMS"` | ||
| ResponseMessage string `json:"responseMessage"` | ||
| } | ||
|
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| // acpEchoAgent implements the ACP Agent interface for testing. | ||
| type acpEchoAgent struct { | ||
| script []ScriptEntry | ||
| scriptIndex int | ||
| conn *acp.AgentSideConnection | ||
| sessionID acp.SessionId | ||
| } | ||
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| var _ acp.Agent = (*acpEchoAgent)(nil) | ||
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| func main() { | ||
| if len(os.Args) != 2 { | ||
| fmt.Fprintln(os.Stderr, "Usage: acp_echo <script.json>") | ||
| os.Exit(1) | ||
| } | ||
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| script, err := loadScript(os.Args[1]) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error loading script: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
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| if len(script) == 0 { | ||
| fmt.Fprintln(os.Stderr, "Script is empty") | ||
| os.Exit(1) | ||
| } | ||
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| sigCh := make(chan os.Signal, 1) | ||
| signal.Notify(sigCh, os.Interrupt) | ||
| go func() { | ||
| <-sigCh | ||
| os.Exit(0) | ||
| }() | ||
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| agent := &acpEchoAgent{ | ||
| script: script, | ||
| } | ||
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| conn := acp.NewAgentSideConnection(agent, os.Stdout, os.Stdin) | ||
| agent.conn = conn | ||
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| <-conn.Done() | ||
| } | ||
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| func (a *acpEchoAgent) Initialize(_ context.Context, _ acp.InitializeRequest) (acp.InitializeResponse, error) { | ||
| return acp.InitializeResponse{ | ||
| ProtocolVersion: acp.ProtocolVersionNumber, | ||
| AgentCapabilities: acp.AgentCapabilities{}, | ||
| }, nil | ||
| } | ||
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| func (a *acpEchoAgent) Authenticate(_ context.Context, _ acp.AuthenticateRequest) (acp.AuthenticateResponse, error) { | ||
| return acp.AuthenticateResponse{}, nil | ||
| } | ||
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| func (a *acpEchoAgent) Cancel(_ context.Context, _ acp.CancelNotification) error { | ||
| return nil | ||
| } | ||
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| func (a *acpEchoAgent) NewSession(_ context.Context, _ acp.NewSessionRequest) (acp.NewSessionResponse, error) { | ||
| a.sessionID = "test-session" | ||
| return acp.NewSessionResponse{ | ||
| SessionId: a.sessionID, | ||
| }, nil | ||
| } | ||
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| func (a *acpEchoAgent) Prompt(ctx context.Context, params acp.PromptRequest) (acp.PromptResponse, error) { | ||
| // Extract text from prompt | ||
| var promptText string | ||
| for _, block := range params.Prompt { | ||
| if block.Text != nil { | ||
| promptText = block.Text.Text | ||
| break | ||
| } | ||
| } | ||
| promptText = strings.TrimSpace(promptText) | ||
|
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| if a.scriptIndex >= len(a.script) { | ||
| return acp.PromptResponse{ | ||
| StopReason: acp.StopReasonEndTurn, | ||
| }, nil | ||
| } | ||
|
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| entry := a.script[a.scriptIndex] | ||
| expected := strings.TrimSpace(entry.ExpectMessage) | ||
|
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| // Empty ExpectMessage matches any prompt | ||
| if expected != "" && expected != promptText { | ||
| return acp.PromptResponse{}, fmt.Errorf("expected message %q but got %q", expected, promptText) | ||
| } | ||
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| a.scriptIndex++ | ||
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| // Send response via session update | ||
| if err := a.conn.SessionUpdate(ctx, acp.SessionNotification{ | ||
| SessionId: params.SessionId, | ||
| Update: acp.UpdateAgentMessageText(entry.ResponseMessage), | ||
| }); err != nil { | ||
| return acp.PromptResponse{}, err | ||
| } | ||
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| return acp.PromptResponse{ | ||
| StopReason: acp.StopReasonEndTurn, | ||
| }, nil | ||
| } | ||
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| func (a *acpEchoAgent) SetSessionMode(_ context.Context, _ acp.SetSessionModeRequest) (acp.SetSessionModeResponse, error) { | ||
| return acp.SetSessionModeResponse{}, nil | ||
| } | ||
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| func loadScript(scriptPath string) ([]ScriptEntry, error) { | ||
| data, err := os.ReadFile(scriptPath) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to read script file: %w", err) | ||
| } | ||
|
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| var script []ScriptEntry | ||
| if err := json.Unmarshal(data, &script); err != nil { | ||
| return nil, fmt.Errorf("failed to parse script JSON: %w", err) | ||
| } | ||
|
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| return script, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| [ | ||
| { | ||
| "expectMessage": "This is a test message.", | ||
| "responseMessage": "Echo: This is a test message." | ||
| } | ||
| ] |
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review: this was causing a 'flicker' when sending a message in the UI