current state

llm.go

@@ -0,0 +1,40 @@
+package sidekick
+
+import (
+  "context"
+)
+
+// LLMClient represents an abstraction over the LLM provider
+type LLMClient interface {
+  Call(ctx context.Context, model ModelConfig, messages []Message, tools map[string]ToolDefinition) (Message, error)
+}
+
+var defaultLLMClient LLMClient = &mockLLMClient{}
+
+// SetLLMClient allows overriding the LLM client (e.g. for testing)
+func SetLLMClient(client LLMClient) {
+  defaultLLMClient = client
+}
+
+// CallLLM invokes the configured LLM client
+func CallLLM(ctx context.Context, model ModelConfig, msgs []Message, tools map[string]ToolDefinition) (Message, error) {
+  return defaultLLMClient.Call(ctx, model, msgs, tools)
+}
+
+// mockLLMClient is used as a fallback if no actual HTTP client is injected.
+type mockLLMClient struct {
+  responses []Message
+  calls     int
+}
+
+func (m *mockLLMClient) Call(ctx context.Context, model ModelConfig, msgs []Message, ts map[string]ToolDefinition) (Message, error) {
+  if m.calls < len(m.responses) {
+    resp := m.responses[m.calls]
+    m.calls++
+    return resp, nil
+  }
+  return Message{
+    Role: MessageRoleAssistant,
+    Content: `{"action": "RESPOND", "params": {"response": "Mock LLM Response"}}`,
+  }, nil
+}