feat: 增加多模态参数

internal/biz/llm_service/ollama.go

@@ -13,6 +13,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/cloudwego/eino-ext/components/model/openai"
+	"github.com/cloudwego/eino/schema"
 	"github.com/ollama/ollama/api"
 	"xorm.io/builder"
 )
@@ -147,6 +149,60 @@ func (r *OllamaService) RecognizeWithImg(ctx context.Context, requireData *entit
 	return
 }
 
+func (r *OllamaService) RecognizeWithImgVllm(ctx context.Context, requireData *entitys.RequireData) (desc api.GenerateResponse, err error) {
+	if requireData.ImgByte == nil {
+		return
+	}
+	entitys.ResLog(requireData.Ch, "recognize_img_start", "图片识别中...")
+
+	chatModel, err := openai.NewChatModel(ctx, &openai.ChatModelConfig{})
+	if err != nil {
+		return api.GenerateResponse{}, err
+	}
+	in := []*schema.Message{
+		{
+			Role:    "system",
+			Content: r.config.DefaultPrompt.ImgRecognize.SystemPrompt,
+		},
+		{
+			Role:    "user",
+			Content: r.config.DefaultPrompt.ImgRecognize.UserPrompt,
+			UserInputMultiContent: []schema.MessageInputPart{
+				{
+					Type: schema.ChatMessagePartTypeText,
+					Text: r.config.DefaultPrompt.ImgRecognize.UserPrompt,
+				},
+			},
+		},
+	}
+
+	for _, imgUrl := range requireData.ImgUrls {
+		imgTmp := imgUrl
+
+		in[1].UserInputMultiContent = append(in[1].UserInputMultiContent, schema.MessageInputPart{
+			Type: schema.ChatMessagePartTypeImageURL,
+			Image: &schema.MessageInputImage{
+				MessagePartCommon: schema.MessagePartCommon{
+					URL: &imgTmp,
+				},
+				Detail: schema.ImageURLDetailHigh,
+			},
+		})
+	}
+
+	outMsg, err := chatModel.Generate(ctx, in)
+	if err != nil {
+		return api.GenerateResponse{}, err
+	}
+
+	desc = api.GenerateResponse{
+		Response: outMsg.Content,
+	}
+
+	entitys.ResLog(requireData.Ch, "recognize_img_end", "图片识别完成，识别内容："+desc.Response)
+	return
+}
+
 func (r *OllamaService) registerToolsOllama(tasks []model.AiTask) []api.Tool {
 	taskPrompt := make([]api.Tool, 0)
 	for _, task := range tasks {

internal/domain/common/vision_builder.go

@@ -0,0 +1,37 @@
+package common
+
+import (
+	"errors"
+	"strings"
+
+	"github.com/cloudwego/eino/schema"
+)
+
+type ImageInput struct {
+	URLs []string
+}
+
+func BuildVisionMessages(systemPrompt string, userText string, images ImageInput) ([]*schema.Message, error) {
+	if len(images.URLs) == 0 {
+		return nil, errors.New("vision requires at least one image url")
+	}
+	parts := make([]schema.MessageInputPart, 0, 1+len(images.URLs))
+	if strings.TrimSpace(userText) != "" {
+		parts = append(parts, schema.MessageInputPart{Type: schema.ChatMessagePartTypeText, Text: userText})
+	}
+	for _, u := range images.URLs {
+		if u == "" {
+			continue
+		}
+		if !strings.HasPrefix(u, "http://") && !strings.HasPrefix(u, "https://") {
+			continue
+		}
+		parts = append(parts, schema.MessageInputPart{Type: schema.ChatMessagePartTypeImageURL, Image: &schema.MessageInputImage{MessagePartCommon: schema.MessagePartCommon{URL: &u}, Detail: schema.ImageURLDetailHigh}})
+	}
+	if len(parts) == 0 {
+		return nil, errors.New("vision inputs invalid: no text or valid image urls")
+	}
+	msgs := []*schema.Message{schema.SystemMessage(systemPrompt)}
+	msgs = append(msgs, &schema.Message{Role: schema.User, UserInputMultiContent: parts})
+	return msgs, nil
+}

internal/domain/llm/errors.go

@@ -2,8 +2,8 @@ package llm
 
 import "errors"
 
-var ErrInvalidCapability = errors.New("invalid capability")
+var ErrInvalidCapability = errors.New("能力未配置或无效")
-var ErrProviderNotFound = errors.New("provider not found")
+var ErrProviderNotFound = errors.New("提供者未找到或未注册")
-var ErrModelNotFound = errors.New("model not found")
+var ErrModelNotFound = errors.New("模型未找到或未配置")
-var ErrModalityMismatch = errors.New("modality mismatch")
+var ErrModalityMismatch = errors.New("模态不匹配：视觉能力需要包含 image")
 var ErrNotImplemented = errors.New("not implemented")

internal/domain/llm/pipeline/vision.go

@@ -1,26 +1,78 @@
 package pipeline
 
 import (
-    "context"
+	"ai_scheduler/internal/config"
-    "github.com/cloudwego/eino/compose"
+	"ai_scheduler/internal/domain/common"
-    "github.com/cloudwego/eino/schema"
+	"ai_scheduler/internal/domain/llm"
-    "ai_scheduler/internal/config"
+	"ai_scheduler/internal/domain/llm/capability"
-    "ai_scheduler/internal/domain/llm"
+	"ai_scheduler/internal/domain/llm/provider"
-    "ai_scheduler/internal/domain/llm/capability"
+	"context"
-    "ai_scheduler/internal/domain/llm/provider"
+
+	"github.com/cloudwego/eino/compose"
+	"github.com/cloudwego/eino/schema"
 )
 
 func BuildVision(ctx context.Context, cfg *config.Config) (compose.Runnable[[]*schema.Message, *schema.Message], error) {
-    choice, opts, err := capability.Route(cfg, capability.Vision)
+	choice, opts, err := capability.Route(cfg, capability.Vision)
-    if err != nil { return nil, err }
+	if err != nil {
-    if err = capability.Validate(capability.Vision, opts); err != nil { return nil, err }
+		return nil, err
-    f := provider.Get(choice.Provider)
+	}
-    if f == nil { return nil, llm.ErrProviderNotFound }
+	if err = capability.Validate(capability.Vision, opts); err != nil {
-    ad := f()
+		return nil, err
-    c := compose.NewChain[[]*schema.Message, *schema.Message]()
+	}
-    c.AppendLambda(compose.InvokableLambda(func(ctx context.Context, in []*schema.Message) (*schema.Message, error) {
+	f := provider.Get(choice.Provider)
-        return ad.Generate(ctx, in, opts)
+	if f == nil {
-    }))
+        return nil, llm.ErrProviderNotFound
-    return c.Compile(ctx)
+	}
+	ad := f()
+	c := compose.NewChain[[]*schema.Message, *schema.Message]()
+	c.AppendLambda(compose.InvokableLambda(func(ctx context.Context, in []*schema.Message) (*schema.Message, error) {
+		if len(in) == 0 {
+			msgs, err := common.BuildVisionMessages("你是一名视觉助手，请根据图片与描述进行理解与回答。", "", common.ImageInput{URLs: []string{}})
+			if err != nil {
+				return nil, err
+			}
+			return ad.Generate(ctx, msgs, opts)
+		}
+		if len(in[0].MultiContent) == 0 {
+			urls := []string{}
+			for _, tok := range splitBySpace(in[0].Content) {
+				if hasHTTPPrefix(tok) {
+					urls = append(urls, tok)
+				}
+			}
+			msgs, err := common.BuildVisionMessages("你是一名视觉助手，请根据图片与描述进行理解与回答。", "", common.ImageInput{URLs: urls})
+			if err != nil {
+				return nil, err
+			}
+			return ad.Generate(ctx, msgs, opts)
+		}
+		return ad.Generate(ctx, in, opts)
+	}))
+	return c.Compile(ctx)
 }
 
+func splitBySpace(s string) []string {
+	res := []string{}
+	start := -1
+	for i, r := range s {
+		if r == ' ' || r == '\n' || r == '\t' || r == '\r' {
+			if start >= 0 {
+				res = append(res, s[start:i])
+				start = -1
+			}
+		} else {
+			if start < 0 {
+				start = i
+			}
+		}
+	}
+	if start >= 0 {
+		res = append(res, s[start:])
+	}
+	return res
+}
+
+func hasHTTPPrefix(s string) bool {
+	return len(s) >= 7 && (s[:7] == "http://" || (len(s) >= 8 && s[:8] == "https://"))
+}

internal/domain/llm/prompt/templates.go

@@ -1,6 +1,11 @@
 package prompt
 
-func SystemForChat() string { return "You are a helpful assistant." }
+func SystemForChat() string {
-func SystemForVision() string { return "You are a vision assistant." }
+	return "你是一名有用的助手，请用清晰、简洁的中文回答。"
-func SystemForIntent() string { return "You classify user intent." }
+}
-
+func SystemForVision() string {
+	return "你是一名视觉助手，请根据图片与描述进行中文理解与回答。"
+}
+func SystemForIntent() string {
+	return "你负责意图识别，请用中文给出明确的意图类别与理由。"
+}