llm provider supports Anthropic and Anthropic compatibility api

pkg/llm/provider/anthropic/anthropic_compatible_messages_api_provider.go

@@ -0,0 +1,72 @@
+package anthropic
+
+import (
+	"net/http"
+
+	"github.com/mayswind/ezbookkeeping/pkg/core"
+	"github.com/mayswind/ezbookkeeping/pkg/llm/provider"
+	"github.com/mayswind/ezbookkeeping/pkg/settings"
+)
+
+const anthropicCompatibleMessagesPath = "messages"
+
+// AnthropicCompatibleMessagesAPIProvider defines the structure of Anthropic compatible messages API provider
+type AnthropicCompatibleMessagesAPIProvider struct {
+	AnthropicMessagesAPIProvider
+	AnthropicCompatibleBaseURL    string
+	AnthropicCompatibleAPIVersion string
+	AnthropicCompatibleAPIKey     string
+	AnthropicCompatibleModelID    string
+	AnthropicCompatibleMaxTokens  uint32
+}
+
+// BuildMessagesHttpRequest returns the messages http request by Anthropic compatible messages API provider
+func (p *AnthropicCompatibleMessagesAPIProvider) BuildMessagesHttpRequest(c core.Context, uid int64) (*http.Request, error) {
+	req, err := http.NewRequest("POST", p.getFinalMessagesRequestUrl(), nil)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if p.AnthropicCompatibleAPIVersion != "" {
+		req.Header.Set("anthropic-version", p.AnthropicCompatibleAPIVersion)
+	}
+
+	if p.AnthropicCompatibleAPIKey != "" {
+		req.Header.Set("X-Api-Key", p.AnthropicCompatibleAPIKey)
+	}
+
+	return req, nil
+}
+
+// GetModelID returns the model id of Anthropic compatible messages API provider
+func (p *AnthropicCompatibleMessagesAPIProvider) GetModelID() string {
+	return p.AnthropicCompatibleModelID
+}
+
+// GetMaxTokens returns the max tokens to generate of Anthropic compatible messages API provider
+func (p *AnthropicCompatibleMessagesAPIProvider) GetMaxTokens() uint32 {
+	return p.AnthropicCompatibleMaxTokens
+}
+
+func (p *AnthropicCompatibleMessagesAPIProvider) getFinalMessagesRequestUrl() string {
+	url := p.AnthropicCompatibleBaseURL
+
+	if url[len(url)-1] != '/' {
+		url += "/"
+	}
+
+	url += anthropicCompatibleMessagesPath
+	return url
+}
+
+// NewAnthropicCompatibleLargeLanguageModelProvider creates a new Anthropic compatible large language model provider instance
+func NewAnthropicCompatibleLargeLanguageModelProvider(llmConfig *settings.LLMConfig, enableResponseLog bool) provider.LargeLanguageModelProvider {
+	return newCommonAnthropicMessagesAPILargeLanguageModelAdapter(llmConfig, enableResponseLog, &AnthropicCompatibleMessagesAPIProvider{
+		AnthropicCompatibleBaseURL:    llmConfig.AnthropicCompatibleBaseURL,
+		AnthropicCompatibleAPIVersion: llmConfig.AnthropicCompatibleAPIVersion,
+		AnthropicCompatibleAPIKey:     llmConfig.AnthropicCompatibleAPIKey,
+		AnthropicCompatibleModelID:    llmConfig.AnthropicCompatibleModelID,
+		AnthropicCompatibleMaxTokens:  llmConfig.AnthropicCompatibleMaxTokens,
+	})
+}