Feat: add external tool web search

7 files changed, 373 insertions, 306 deletions

diff --git a/bot.go b/bot.go
index 10b39f7..f8170e1 100644
--- a/bot.go
+++ b/bot.go
@@ -151,13 +151,8 @@ func fetchORModels(free bool) ([]string, error) {
 
 func sendMsgToLLM(body io.Reader) {
 	choseChunkParser()
-	bodyBytes, _ := io.ReadAll(body)
-	ok := json.Valid(bodyBytes)
-	if !ok {
-		panic("invalid json")
-	}
 	// nolint
-	req, err := http.NewRequest("POST", cfg.CurrentAPI, bytes.NewReader(bodyBytes))
+	req, err := http.NewRequest("POST", cfg.CurrentAPI, body)
 	if err != nil {
 		logger.Error("newreq error", "error", err)
 		if err := notifyUser("error", "apicall failed:"+err.Error()); err != nil {
@@ -172,7 +167,6 @@ func sendMsgToLLM(body io.Reader) {
 	// req.Header.Set("Content-Length", strconv.Itoa(len(bodyBytes)))
 	req.Header.Set("Accept-Encoding", "gzip")
 	// nolint
-	// resp, err := httpClient.Post(cfg.CurrentAPI, "application/json", body)
 	resp, err := httpClient.Do(req)
 	if err != nil {
 		logger.Error("llamacpp api", "error", err)
diff --git a/config/config.go b/config/config.go
index b3eaace..d73bf28 100644
--- a/config/config.go
+++ b/config/config.go
@@ -15,6 +15,9 @@ type Config struct {
 	CurrentProvider   string
 	APIMap            map[string]string
 	FetchModelNameAPI string `toml:"FetchModelNameAPI"`
+	//  ToolsAPI list?
+	SearchAPI      string `toml:"SearchAPI"`
+	SearchDescribe string `toml:"SearchDescribe"`
 	//
 	ShowSys                       bool   `toml:"ShowSys"`
 	LogFile                       string `toml:"LogFile"`
diff --git a/llm.go b/llm.go
index dd8229d..fb93615 100644
--- a/llm.go
+++ b/llm.go
@@ -320,7 +320,7 @@ func (ds DeepSeekerChat) FormMsg(msg, role string, resume bool) (io.Reader, erro
 			bodyCopy.Messages[i] = msg
 		}
 	}
-	dsBody := models.NewDSCharReq(*bodyCopy)
+	dsBody := models.NewDSChatReq(*bodyCopy)
 	data, err := json.Marshal(dsBody)
 	if err != nil {
 		logger.Error("failed to form a msg", "error", err)
@@ -462,8 +462,8 @@ func (or OpenRouterChat) FormMsg(msg, role string, resume bool) (io.Reader, erro
 			bodyCopy.Messages[i] = msg
 		}
 	}
-	dsBody := models.NewDSCharReq(*bodyCopy)
-	data, err := json.Marshal(dsBody)
+	orBody := models.NewOpenRouterChatReq(*bodyCopy, defaultLCPProps)
+	data, err := json.Marshal(orBody)
 	if err != nil {
 		logger.Error("failed to form a msg", "error", err)
 		return nil, err
diff --git a/models/deepseek.go b/models/deepseek.go
new file mode 100644
index 0000000..8f9868d
--- /dev/null
+++ b/models/deepseek.go
@@ -0,0 +1,144 @@
+package models
+
+type DSChatReq struct {
+	Messages         []RoleMsg `json:"messages"`
+	Model            string    `json:"model"`
+	Stream           bool      `json:"stream"`
+	FrequencyPenalty int       `json:"frequency_penalty"`
+	MaxTokens        int       `json:"max_tokens"`
+	PresencePenalty  int       `json:"presence_penalty"`
+	Temperature      float32   `json:"temperature"`
+	TopP             float32   `json:"top_p"`
+	// ResponseFormat   struct {
+	// 	Type string `json:"type"`
+	// } `json:"response_format"`
+	// Stop          any    `json:"stop"`
+	// StreamOptions any     `json:"stream_options"`
+	// Tools         any     `json:"tools"`
+	// ToolChoice    string  `json:"tool_choice"`
+	// Logprobs      bool    `json:"logprobs"`
+	// TopLogprobs   any     `json:"top_logprobs"`
+}
+
+func NewDSChatReq(cb ChatBody) DSChatReq {
+	return DSChatReq{
+		Messages:         cb.Messages,
+		Model:            cb.Model,
+		Stream:           cb.Stream,
+		MaxTokens:        2048,
+		PresencePenalty:  0,
+		FrequencyPenalty: 0,
+		Temperature:      1.0,
+		TopP:             1.0,
+	}
+}
+
+type DSCompletionReq struct {
+	Model            string `json:"model"`
+	Prompt           string `json:"prompt"`
+	Echo             bool   `json:"echo"`
+	FrequencyPenalty int    `json:"frequency_penalty"`
+	// Logprobs         int     `json:"logprobs"`
+	MaxTokens       int     `json:"max_tokens"`
+	PresencePenalty int     `json:"presence_penalty"`
+	Stop            any     `json:"stop"`
+	Stream          bool    `json:"stream"`
+	StreamOptions   any     `json:"stream_options"`
+	Suffix          any     `json:"suffix"`
+	Temperature     float32 `json:"temperature"`
+	TopP            float32 `json:"top_p"`
+}
+
+func NewDSCompletionReq(prompt, model string, temp float32, stopSlice []string) DSCompletionReq {
+	return DSCompletionReq{
+		Model:            model,
+		Prompt:           prompt,
+		Temperature:      temp,
+		Stream:           true,
+		Echo:             false,
+		MaxTokens:        2048,
+		PresencePenalty:  0,
+		FrequencyPenalty: 0,
+		TopP:             1.0,
+		Stop:             stopSlice,
+	}
+}
+
+type DSCompletionResp struct {
+	ID      string `json:"id"`
+	Choices []struct {
+		FinishReason string `json:"finish_reason"`
+		Index        int    `json:"index"`
+		Logprobs     struct {
+			TextOffset    []int    `json:"text_offset"`
+			TokenLogprobs []int    `json:"token_logprobs"`
+			Tokens        []string `json:"tokens"`
+			TopLogprobs   []struct {
+			} `json:"top_logprobs"`
+		} `json:"logprobs"`
+		Text string `json:"text"`
+	} `json:"choices"`
+	Created           int    `json:"created"`
+	Model             string `json:"model"`
+	SystemFingerprint string `json:"system_fingerprint"`
+	Object            string `json:"object"`
+	Usage             struct {
+		CompletionTokens        int `json:"completion_tokens"`
+		PromptTokens            int `json:"prompt_tokens"`
+		PromptCacheHitTokens    int `json:"prompt_cache_hit_tokens"`
+		PromptCacheMissTokens   int `json:"prompt_cache_miss_tokens"`
+		TotalTokens             int `json:"total_tokens"`
+		CompletionTokensDetails struct {
+			ReasoningTokens int `json:"reasoning_tokens"`
+		} `json:"completion_tokens_details"`
+	} `json:"usage"`
+}
+
+type DSChatResp struct {
+	Choices []struct {
+		Delta struct {
+			Content string `json:"content"`
+			Role    any    `json:"role"`
+		} `json:"delta"`
+		FinishReason string `json:"finish_reason"`
+		Index        int    `json:"index"`
+		Logprobs     any    `json:"logprobs"`
+	} `json:"choices"`
+	Created           int    `json:"created"`
+	ID                string `json:"id"`
+	Model             string `json:"model"`
+	Object            string `json:"object"`
+	SystemFingerprint string `json:"system_fingerprint"`
+	Usage             struct {
+		CompletionTokens int `json:"completion_tokens"`
+		PromptTokens     int `json:"prompt_tokens"`
+		TotalTokens      int `json:"total_tokens"`
+	} `json:"usage"`
+}
+
+type DSChatStreamResp struct {
+	ID                string `json:"id"`
+	Object            string `json:"object"`
+	Created           int    `json:"created"`
+	Model             string `json:"model"`
+	SystemFingerprint string `json:"system_fingerprint"`
+	Choices           []struct {
+		Index int `json:"index"`
+		Delta struct {
+			Content          string `json:"content"`
+			ReasoningContent string `json:"reasoning_content"`
+		} `json:"delta"`
+		Logprobs     any    `json:"logprobs"`
+		FinishReason string `json:"finish_reason"`
+	} `json:"choices"`
+}
+
+type DSBalance struct {
+	IsAvailable  bool `json:"is_available"`
+	BalanceInfos []struct {
+		Currency        string `json:"currency"`
+		TotalBalance    string `json:"total_balance"`
+		GrantedBalance  string `json:"granted_balance"`
+		ToppedUpBalance string `json:"topped_up_balance"`
+	} `json:"balance_infos"`
+}
diff --git a/models/models.go b/models/models.go
index f0f4130..0a10da1 100644
--- a/models/models.go
+++ b/models/models.go
@@ -127,139 +127,6 @@ func (cb *ChatBody) MakeStopSlice() []string {
 	return ss
 }
 
-type DSChatReq struct {
-	Messages         []RoleMsg `json:"messages"`
-	Model            string    `json:"model"`
-	Stream           bool      `json:"stream"`
-	FrequencyPenalty int       `json:"frequency_penalty"`
-	MaxTokens        int       `json:"max_tokens"`
-	PresencePenalty  int       `json:"presence_penalty"`
-	Temperature      float32   `json:"temperature"`
-	TopP             float32   `json:"top_p"`
-	// ResponseFormat   struct {
-	// 	Type string `json:"type"`
-	// } `json:"response_format"`
-	// Stop          any    `json:"stop"`
-	// StreamOptions any     `json:"stream_options"`
-	// Tools         any     `json:"tools"`
-	// ToolChoice    string  `json:"tool_choice"`
-	// Logprobs      bool    `json:"logprobs"`
-	// TopLogprobs   any     `json:"top_logprobs"`
-}
-
-func NewDSCharReq(cb ChatBody) DSChatReq {
-	return DSChatReq{
-		Messages:         cb.Messages,
-		Model:            cb.Model,
-		Stream:           cb.Stream,
-		MaxTokens:        2048,
-		PresencePenalty:  0,
-		FrequencyPenalty: 0,
-		Temperature:      1.0,
-		TopP:             1.0,
-	}
-}
-
-type DSCompletionReq struct {
-	Model            string `json:"model"`
-	Prompt           string `json:"prompt"`
-	Echo             bool   `json:"echo"`
-	FrequencyPenalty int    `json:"frequency_penalty"`
-	// Logprobs         int     `json:"logprobs"`
-	MaxTokens       int     `json:"max_tokens"`
-	PresencePenalty int     `json:"presence_penalty"`
-	Stop            any     `json:"stop"`
-	Stream          bool    `json:"stream"`
-	StreamOptions   any     `json:"stream_options"`
-	Suffix          any     `json:"suffix"`
-	Temperature     float32 `json:"temperature"`
-	TopP            float32 `json:"top_p"`
-}
-
-func NewDSCompletionReq(prompt, model string, temp float32, stopSlice []string) DSCompletionReq {
-	return DSCompletionReq{
-		Model:            model,
-		Prompt:           prompt,
-		Temperature:      temp,
-		Stream:           true,
-		Echo:             false,
-		MaxTokens:        2048,
-		PresencePenalty:  0,
-		FrequencyPenalty: 0,
-		TopP:             1.0,
-		Stop:             stopSlice,
-	}
-}
-
-type DSCompletionResp struct {
-	ID      string `json:"id"`
-	Choices []struct {
-		FinishReason string `json:"finish_reason"`
-		Index        int    `json:"index"`
-		Logprobs     struct {
-			TextOffset    []int    `json:"text_offset"`
-			TokenLogprobs []int    `json:"token_logprobs"`
-			Tokens        []string `json:"tokens"`
-			TopLogprobs   []struct {
-			} `json:"top_logprobs"`
-		} `json:"logprobs"`
-		Text string `json:"text"`
-	} `json:"choices"`
-	Created           int    `json:"created"`
-	Model             string `json:"model"`
-	SystemFingerprint string `json:"system_fingerprint"`
-	Object            string `json:"object"`
-	Usage             struct {
-		CompletionTokens        int `json:"completion_tokens"`
-		PromptTokens            int `json:"prompt_tokens"`
-		PromptCacheHitTokens    int `json:"prompt_cache_hit_tokens"`
-		PromptCacheMissTokens   int `json:"prompt_cache_miss_tokens"`
-		TotalTokens             int `json:"total_tokens"`
-		CompletionTokensDetails struct {
-			ReasoningTokens int `json:"reasoning_tokens"`
-		} `json:"completion_tokens_details"`
-	} `json:"usage"`
-}
-
-type DSChatResp struct {
-	Choices []struct {
-		Delta struct {
-			Content string `json:"content"`
-			Role    any    `json:"role"`
-		} `json:"delta"`
-		FinishReason string `json:"finish_reason"`
-		Index        int    `json:"index"`
-		Logprobs     any    `json:"logprobs"`
-	} `json:"choices"`
-	Created           int    `json:"created"`
-	ID                string `json:"id"`
-	Model             string `json:"model"`
-	Object            string `json:"object"`
-	SystemFingerprint string `json:"system_fingerprint"`
-	Usage             struct {
-		CompletionTokens int `json:"completion_tokens"`
-		PromptTokens     int `json:"prompt_tokens"`
-		TotalTokens      int `json:"total_tokens"`
-	} `json:"usage"`
-}
-
-type DSChatStreamResp struct {
-	ID                string `json:"id"`
-	Object            string `json:"object"`
-	Created           int    `json:"created"`
-	Model             string `json:"model"`
-	SystemFingerprint string `json:"system_fingerprint"`
-	Choices           []struct {
-		Index int `json:"index"`
-		Delta struct {
-			Content          string `json:"content"`
-			ReasoningContent string `json:"reasoning_content"`
-		} `json:"delta"`
-		Logprobs     any    `json:"logprobs"`
-		FinishReason string `json:"finish_reason"`
-	} `json:"choices"`
-}
-
 type EmbeddingResp struct {
 	Embedding []float32 `json:"embedding"`
 	Index     uint32    `json:"index"`
@@ -374,166 +241,3 @@ type LlamaCPPResp struct {
 	Content string `json:"content"`
 	Stop    bool   `json:"stop"`
 }
-
-type DSBalance struct {
-	IsAvailable  bool `json:"is_available"`
-	BalanceInfos []struct {
-		Currency        string `json:"currency"`
-		TotalBalance    string `json:"total_balance"`
-		GrantedBalance  string `json:"granted_balance"`
-		ToppedUpBalance string `json:"topped_up_balance"`
-	} `json:"balance_infos"`
-}
-
-// openrouter
-// https://openrouter.ai/docs/api-reference/completion
-type OpenRouterCompletionReq struct {
-	Model       string   `json:"model"`
-	Prompt      string   `json:"prompt"`
-	Stream      bool     `json:"stream"`
-	Temperature float32  `json:"temperature"`
-	Stop        []string `json:"stop"` // not present in docs
-	MinP        float32  `json:"min_p"`
-	NPredict    int32    `json:"max_tokens"`
-}
-
-func NewOpenRouterCompletionReq(model, prompt string, props map[string]float32, stopStrings []string) OpenRouterCompletionReq {
-	return OpenRouterCompletionReq{
-		Stream:      true,
-		Prompt:      prompt,
-		Temperature: props["temperature"],
-		MinP:        props["min_p"],
-		NPredict:    int32(props["n_predict"]),
-		Stop:        stopStrings,
-		Model:       model,
-	}
-}
-
-type OpenRouterChatReq struct {
-	Messages    []RoleMsg `json:"messages"`
-	Model       string    `json:"model"`
-	Stream      bool      `json:"stream"`
-	Temperature float32   `json:"temperature"`
-	MinP        float32   `json:"min_p"`
-	NPredict    int32     `json:"max_tokens"`
-}
-
-func NewOpenRouterChatReq(cb ChatBody, props map[string]float32) OpenRouterChatReq {
-	return OpenRouterChatReq{
-		Messages:    cb.Messages,
-		Model:       cb.Model,
-		Stream:      cb.Stream,
-		Temperature: props["temperature"],
-		MinP:        props["min_p"],
-		NPredict:    int32(props["n_predict"]),
-	}
-}
-
-type OpenRouterChatRespNonStream struct {
-	ID       string `json:"id"`
-	Provider string `json:"provider"`
-	Model    string `json:"model"`
-	Object   string `json:"object"`
-	Created  int    `json:"created"`
-	Choices  []struct {
-		Logprobs           any    `json:"logprobs"`
-		FinishReason       string `json:"finish_reason"`
-		NativeFinishReason string `json:"native_finish_reason"`
-		Index              int    `json:"index"`
-		Message            struct {
-			Role      string `json:"role"`
-			Content   string `json:"content"`
-			Refusal   any    `json:"refusal"`
-			Reasoning any    `json:"reasoning"`
-		} `json:"message"`
-	} `json:"choices"`
-	Usage struct {
-		PromptTokens     int `json:"prompt_tokens"`
-		CompletionTokens int `json:"completion_tokens"`
-		TotalTokens      int `json:"total_tokens"`
-	} `json:"usage"`
-}
-
-type OpenRouterChatResp struct {
-	ID       string `json:"id"`
-	Provider string `json:"provider"`
-	Model    string `json:"model"`
-	Object   string `json:"object"`
-	Created  int    `json:"created"`
-	Choices  []struct {
-		Index int `json:"index"`
-		Delta struct {
-			Role    string `json:"role"`
-			Content string `json:"content"`
-		} `json:"delta"`
-		FinishReason       string `json:"finish_reason"`
-		NativeFinishReason string `json:"native_finish_reason"`
-		Logprobs           any    `json:"logprobs"`
-	} `json:"choices"`
-}
-
-type OpenRouterCompletionResp struct {
-	ID       string `json:"id"`
-	Provider string `json:"provider"`
-	Model    string `json:"model"`
-	Object   string `json:"object"`
-	Created  int    `json:"created"`
-	Choices  []struct {
-		Text               string `json:"text"`
-		FinishReason       string `json:"finish_reason"`
-		NativeFinishReason string `json:"native_finish_reason"`
-		Logprobs           any    `json:"logprobs"`
-	} `json:"choices"`
-}
-
-type ORModel struct {
-	ID            string `json:"id"`
-	CanonicalSlug string `json:"canonical_slug"`
-	HuggingFaceID string `json:"hugging_face_id"`
-	Name          string `json:"name"`
-	Created       int    `json:"created"`
-	Description   string `json:"description"`
-	ContextLength int    `json:"context_length"`
-	Architecture  struct {
-		Modality         string   `json:"modality"`
-		InputModalities  []string `json:"input_modalities"`
-		OutputModalities []string `json:"output_modalities"`
-		Tokenizer        string   `json:"tokenizer"`
-		InstructType     any      `json:"instruct_type"`
-	} `json:"architecture"`
-	Pricing struct {
-		Prompt            string `json:"prompt"`
-		Completion        string `json:"completion"`
-		Request           string `json:"request"`
-		Image             string `json:"image"`
-		Audio             string `json:"audio"`
-		WebSearch         string `json:"web_search"`
-		InternalReasoning string `json:"internal_reasoning"`
-	} `json:"pricing,omitempty"`
-	TopProvider struct {
-		ContextLength       int  `json:"context_length"`
-		MaxCompletionTokens int  `json:"max_completion_tokens"`
-		IsModerated         bool `json:"is_moderated"`
-	} `json:"top_provider"`
-	PerRequestLimits    any      `json:"per_request_limits"`
-	SupportedParameters []string `json:"supported_parameters"`
-}
-
-type ORModels struct {
-	Data []ORModel `json:"data"`
-}
-
-func (orm *ORModels) ListModels(free bool) []string {
-	resp := []string{}
-	for _, model := range orm.Data {
-		if free {
-			if model.Pricing.Prompt == "0" && model.Pricing.Request == "0" &&
-				model.Pricing.Completion == "0" {
-				resp = append(resp, model.ID)
-			}
-		} else {
-			resp = append(resp, model.ID)
-		}
-	}
-	return resp
-}
diff --git a/models/openrouter.go b/models/openrouter.go
new file mode 100644
index 0000000..933598e
--- /dev/null
+++ b/models/openrouter.go
@@ -0,0 +1,154 @@
+package models
+
+// openrouter
+// https://openrouter.ai/docs/api-reference/completion
+type OpenRouterCompletionReq struct {
+	Model       string   `json:"model"`
+	Prompt      string   `json:"prompt"`
+	Stream      bool     `json:"stream"`
+	Temperature float32  `json:"temperature"`
+	Stop        []string `json:"stop"` // not present in docs
+	MinP        float32  `json:"min_p"`
+	NPredict    int32    `json:"max_tokens"`
+}
+
+func NewOpenRouterCompletionReq(model, prompt string, props map[string]float32, stopStrings []string) OpenRouterCompletionReq {
+	return OpenRouterCompletionReq{
+		Stream:      true,
+		Prompt:      prompt,
+		Temperature: props["temperature"],
+		MinP:        props["min_p"],
+		NPredict:    int32(props["n_predict"]),
+		Stop:        stopStrings,
+		Model:       model,
+	}
+}
+
+type OpenRouterChatReq struct {
+	Messages    []RoleMsg `json:"messages"`
+	Model       string    `json:"model"`
+	Stream      bool      `json:"stream"`
+	Temperature float32   `json:"temperature"`
+	MinP        float32   `json:"min_p"`
+	NPredict    int32     `json:"max_tokens"`
+}
+
+func NewOpenRouterChatReq(cb ChatBody, props map[string]float32) OpenRouterChatReq {
+	return OpenRouterChatReq{
+		Messages:    cb.Messages,
+		Model:       cb.Model,
+		Stream:      cb.Stream,
+		Temperature: props["temperature"],
+		MinP:        props["min_p"],
+		NPredict:    int32(props["n_predict"]),
+	}
+}
+
+type OpenRouterChatRespNonStream struct {
+	ID       string `json:"id"`
+	Provider string `json:"provider"`
+	Model    string `json:"model"`
+	Object   string `json:"object"`
+	Created  int    `json:"created"`
+	Choices  []struct {
+		Logprobs           any    `json:"logprobs"`
+		FinishReason       string `json:"finish_reason"`
+		NativeFinishReason string `json:"native_finish_reason"`
+		Index              int    `json:"index"`
+		Message            struct {
+			Role      string `json:"role"`
+			Content   string `json:"content"`
+			Refusal   any    `json:"refusal"`
+			Reasoning any    `json:"reasoning"`
+		} `json:"message"`
+	} `json:"choices"`
+	Usage struct {
+		PromptTokens     int `json:"prompt_tokens"`
+		CompletionTokens int `json:"completion_tokens"`
+		TotalTokens      int `json:"total_tokens"`
+	} `json:"usage"`
+}
+
+type OpenRouterChatResp struct {
+	ID       string `json:"id"`
+	Provider string `json:"provider"`
+	Model    string `json:"model"`
+	Object   string `json:"object"`
+	Created  int    `json:"created"`
+	Choices  []struct {
+		Index int `json:"index"`
+		Delta struct {
+			Role    string `json:"role"`
+			Content string `json:"content"`
+		} `json:"delta"`
+		FinishReason       string `json:"finish_reason"`
+		NativeFinishReason string `json:"native_finish_reason"`
+		Logprobs           any    `json:"logprobs"`
+	} `json:"choices"`
+}
+
+type OpenRouterCompletionResp struct {
+	ID       string `json:"id"`
+	Provider string `json:"provider"`
+	Model    string `json:"model"`
+	Object   string `json:"object"`
+	Created  int    `json:"created"`
+	Choices  []struct {
+		Text               string `json:"text"`
+		FinishReason       string `json:"finish_reason"`
+		NativeFinishReason string `json:"native_finish_reason"`
+		Logprobs           any    `json:"logprobs"`
+	} `json:"choices"`
+}
+
+type ORModel struct {
+	ID            string `json:"id"`
+	CanonicalSlug string `json:"canonical_slug"`
+	HuggingFaceID string `json:"hugging_face_id"`
+	Name          string `json:"name"`
+	Created       int    `json:"created"`
+	Description   string `json:"description"`
+	ContextLength int    `json:"context_length"`
+	Architecture  struct {
+		Modality         string   `json:"modality"`
+		InputModalities  []string `json:"input_modalities"`
+		OutputModalities []string `json:"output_modalities"`
+		Tokenizer        string   `json:"tokenizer"`
+		InstructType     any      `json:"instruct_type"`
+	} `json:"architecture"`
+	Pricing struct {
+		Prompt            string `json:"prompt"`
+		Completion        string `json:"completion"`
+		Request           string `json:"request"`
+		Image             string `json:"image"`
+		Audio             string `json:"audio"`
+		WebSearch         string `json:"web_search"`
+		InternalReasoning string `json:"internal_reasoning"`
+	} `json:"pricing,omitempty"`
+	TopProvider struct {
+		ContextLength       int  `json:"context_length"`
+		MaxCompletionTokens int  `json:"max_completion_tokens"`
+		IsModerated         bool `json:"is_moderated"`
+	} `json:"top_provider"`
+	PerRequestLimits    any      `json:"per_request_limits"`
+	SupportedParameters []string `json:"supported_parameters"`
+}
+
+type ORModels struct {
+	Data []ORModel `json:"data"`
+}
+
+func (orm *ORModels) ListModels(free bool) []string {
+	resp := []string{}
+	for _, model := range orm.Data {
+		if free {
+			if model.Pricing.Prompt == "0" && model.Pricing.Request == "0" &&
+				model.Pricing.Completion == "0" {
+				resp = append(resp, model.ID)
+			}
+		} else {
+			resp = append(resp, model.ID)
+		}
+	}
+	return resp
+}
diff --git a/tools.go b/tools.go
index acc4697..c1b84ab 100644
--- a/tools.go
+++ b/tools.go
@@ -1,8 +1,13 @@
 package main
 
 import (
+	"bytes"
+	"encoding/json"
 	"fmt"
+	"gf-lt/config"
 	"gf-lt/models"
+	"io"
+	"net/http"
 	"regexp"
 	"strings"
 	"time"
@@ -76,6 +81,69 @@ After that you are free to respond to the user.
 	sysLabels = []string{"basic_sys", "tool_sys"}
 )
 
+func populateTools(cfg config.Config) {
+	// if we have access to some server with funcs we can populate funcs (tools|toolbelt?) with it
+	// there must be a better way
+	if cfg.SearchAPI == "" || cfg.SearchDescribe == "" {
+		return
+	}
+	resp, err := httpClient.Get(cfg.SearchDescribe)
+	if err != nil {
+		logger.Error("failed to get websearch tool description",
+			"link", cfg.SearchDescribe, "error", err)
+		return
+	}
+	descResp := models.Tool{}
+	if err := json.NewDecoder(resp.Body).Decode(&descResp); err != nil {
+		logger.Error("failed to unmarshal websearch tool description",
+			"link", cfg.SearchDescribe, "error", err)
+		return
+	}
+	fnMap["web_search"] = websearch
+	baseTools = append(baseTools, descResp)
+	logger.Info("added web_search tool", "tool", descResp)
+	return
+}
+
+// {"type":"function","function":{"name":"web_search","description":"Perform a web search to find information on varioust topics","parameters":{"type":"object","properties":{"num_results":{"type":"integer","description":"Maximum number of results to return (default: 10)"},"query":{"type":"string","description":"The search query to find information about"},"search_type":{"type":"string","description":"Type of search to perform: 'api' for SearXNG API search or 'scraper' for web scraping (default: 'scraper')"}},"required":["query"]}}}
+
+// web search (depends on extra server)
+func websearch(args map[string]string) []byte {
+	// make http request return bytes
+	query, ok := args["query"]
+	if !ok || query == "" {
+		msg := "query not provided to web_search tool"
+		logger.Error(msg)
+		return []byte(msg)
+	}
+	payload, err := json.Marshal(args)
+	if err != nil {
+		logger.Error("failed to marshal web_search arguments", "error", err)
+		msg := fmt.Sprintf("failed to marshal web_search arguments; error: %s\n", err)
+		return []byte(msg)
+	}
+	req, err := http.NewRequest("POST", cfg.SearchAPI, bytes.NewReader(payload))
+	if err != nil {
+		logger.Error("failed to build an http request", "error", err)
+		msg := fmt.Sprintf("failed to build an http request; error: %s\n", err)
+		return []byte(msg)
+	}
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		logger.Error("failed to execute http request", "error", err)
+		msg := fmt.Sprintf("failed to execute http request; error: %s\n", err)
+		return []byte(msg)
+	}
+	defer resp.Body.Close()
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		logger.Error("failed to read response body", "error", err)
+		msg := fmt.Sprintf("failed to read response body; error: %s\n", err)
+		return []byte(msg)
+	}
+	return data
+}
+
 /*
 consider cases:
 - append mode (treat it like a journal appendix)