Multiple provider configuration

Add support for having multiple openai or anthropic compatible providers
accessible via different baseUrls

pkg/lmcli/config.go

@@ -19,16 +19,14 @@ type Config struct {
 		TitleGenerationModel *string `yaml:"titleGenerationModel" default:"gpt-3.5-turbo"`
 	} `yaml:"conversations"`
 	Tools *struct {
-		EnabledTools *[]string `yaml:"enabledTools"`
+		EnabledTools []string `yaml:"enabledTools"`
 	} `yaml:"tools"`
-	OpenAI *struct {
-		APIKey *string   `yaml:"apiKey" default:"your_key_here"`
+	Providers []*struct {
+		Kind    *string   `yaml:"kind"`
+		BaseURL *string   `yaml:"baseUrl"`
+		APIKey  *string   `yaml:"apiKey"`
 		Models  *[]string `yaml:"models"`
-	} `yaml:"openai"`
-	Anthropic *struct {
-		APIKey *string   `yaml:"apiKey" default:"your_key_here"`
-		Models *[]string `yaml:"models"`
-	} `yaml:"anthropic"`
+	} `yaml:"providers"`
 	Chroma *struct {
 		Style     *string `yaml:"style" default:"onedark"`
 		Formatter *string `yaml:"formatter" default:"terminal16m"`

pkg/lmcli/lmcli.go

@@ -43,7 +43,7 @@ func NewContext() (*Context, error) {
 	chroma := tty.NewChromaHighlighter("markdown", *config.Chroma.Formatter, *config.Chroma.Style)
 
 	var enabledTools []model.Tool
-	for _, toolName := range *config.Tools.EnabledTools {
+	for _, toolName := range config.Tools.EnabledTools {
 		tool, ok := tools.AvailableTools[toolName]
 		if ok {
 			enabledTools = append(enabledTools, tool)
@@ -54,31 +54,43 @@ func NewContext() (*Context, error) {
 }
 
 func (c *Context) GetModels() (models []string) {
-	for _, m := range *c.Config.Anthropic.Models {
+	for _, p := range c.Config.Providers {
+		for _, m := range *p.Models {
 			models = append(models, m)
 		}
-	for _, m := range *c.Config.OpenAI.Models {
-		models = append(models, m)
 	}
 	return
 }
 
 func (c *Context) GetCompletionProvider(model string) (provider.ChatCompletionClient, error) {
-	for _, m := range *c.Config.Anthropic.Models {
+	for _, p := range c.Config.Providers {
+		for _, m := range *p.Models {
 			if m == model {
+				switch *p.Kind {
+				case "anthropic":
+					url := "https://api.anthropic.com/v1"
+					if p.BaseURL != nil {
+						url = *p.BaseURL
+					}
 					anthropic := &anthropic.AnthropicClient{
-				APIKey: *c.Config.Anthropic.APIKey,
+						BaseURL: url,
+						APIKey:  *p.APIKey,
 					}
 					return anthropic, nil
+				case "openai":
+					url := "https://api.openai.com/v1"
+					if p.BaseURL != nil {
+						url = *p.BaseURL
 					}
-	}
-	for _, m := range *c.Config.OpenAI.Models {
-		if m == model {
 					openai := &openai.OpenAIClient{
-				BaseURL: "https://api.openai.com/v1",
-				APIKey:  *c.Config.OpenAI.APIKey,
+						BaseURL: url,
+						APIKey:  *p.APIKey,
 					}
 					return openai, nil
+				default:
+					return nil, fmt.Errorf("unknown provider kind: %s", *p.Kind)
+				}
+			}
 		}
 	}
 	return nil, fmt.Errorf("unknown model: %s", model)

pkg/lmcli/provider/anthropic/anthropic.go

@@ -81,14 +81,12 @@ func buildRequest(params model.RequestParameters, messages []model.Message) Requ
 }
 
 func sendRequest(ctx context.Context, c *AnthropicClient, r Request) (*http.Response, error) {
-	url := "https://api.anthropic.com/v1/messages"
-
 	jsonBody, err := json.Marshal(r)
 	if err != nil {
 		return nil, fmt.Errorf("failed to marshal request body: %v", err)
 	}
 
-	req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(jsonBody))
+	req, err := http.NewRequestWithContext(ctx, "POST", c.BaseURL+"/messages", bytes.NewBuffer(jsonBody))
 	if err != nil {
 		return nil, fmt.Errorf("failed to create HTTP request: %v", err)
 	}

pkg/lmcli/provider/anthropic/types.go

@@ -1,6 +1,7 @@
 package anthropic
 
 type AnthropicClient struct {
+	BaseURL string
 	APIKey string
 }