mirror of
https://gitcode.com/JianFeeeee/HomeAgent.git
synced 2026-09-21 17:38:10 +00:00
422 lines
12 KiB
Go
422 lines
12 KiB
Go
package core
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"log"
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"sort"
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"strings"
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"time"
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agentAPI "gitcode.com/JianFeeeee/HomeAgent/internal/agent/api"
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"gitcode.com/JianFeeeee/HomeAgent/internal/events"
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sdk "gitcode.com/JianFeeeee/HomeAgent/internal/sdk"
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)
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func (a *Agent) process(input string, stageCtx *sdk.StageContext) (response string, toolsUsed []string, err error) {
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a.mu.Lock()
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defer a.mu.Unlock()
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if a.provider == nil {
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return "", nil, fmt.Errorf("agent: no LLM provider configured")
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}
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memContext := a.buildMemoryContext(input)
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sysPrompt := a.buildSystemPrompt(memContext, input)
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tools := a.buildToolDefs()
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msgs := a.buildMessages(sysPrompt, input)
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if blocks, ok := stageCtx.Extra["media_blocks"].([]agentAPI.ContentBlock); ok && len(blocks) > 0 {
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if len(msgs) > 0 {
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msgs[len(msgs)-1].Blocks = blocks
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}
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}
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log.Printf("[agent] tool call loop start, %d tools, %d context events, personality=%t, docs=%d",
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len(tools), a.context.Len(),
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a.personality != nil && a.personality.Content != "",
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a.docStoreSize())
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if a.runStage(sdk.StagePreAction, stageCtx) {
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return *stageCtx.Response, toolsUsed, nil
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}
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if len(stageCtx.ContextMsgs) > 0 {
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for _, m := range stageCtx.ContextMsgs {
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role, _ := m["role"].(string)
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content, _ := m["content"].(string)
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if role != "" {
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msgs = append(msgs, agentAPI.Message{Role: role, Content: content})
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}
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}
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}
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for turn := 0; ; turn++ {
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for _, interrupt := range a.drainInterrupts() {
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msgs = append(msgs, agentAPI.Message{
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Role: "system",
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Content: interrupt,
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})
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}
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eb := map[string]interface{}{}
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if !a.thinkingEnabled {
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eb["thinking"] = map[string]interface{}{"type": "disabled"}
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}
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req := &agentAPI.CompletionRequest{
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Messages: msgs,
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MaxTokens: 4096,
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Tools: tools,
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ToolChoice: "auto",
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ExtraBody: eb,
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}
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var providers []agentAPI.Provider
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if a.providerManager != nil {
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allProviders := a.providerManager.OrderedProviders()
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providers = make([]agentAPI.Provider, 0, len(allProviders))
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for _, p := range allProviders {
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if a.providerManager.IsAvailable(p.Name()) {
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providers = append(providers, p)
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}
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}
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}
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if len(providers) == 0 {
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providers = []agentAPI.Provider{a.provider}
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}
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var resp *agentAPI.CompletionResponse
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var llmErr error
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for pi, fbProvider := range providers {
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if pi > 0 {
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log.Printf("[agent] LLM fallback: trying provider %q (fallback #%d/%d)",
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fbProvider.Name(), pi, len(providers)-1)
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}
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fCtx, fCancel := context.WithCancel(a.ctx)
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a.llmMu.Lock()
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a.cancelLLM = fCancel
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a.llmMu.Unlock()
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resp, llmErr = fbProvider.Chat(fCtx, req)
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a.llmMu.Lock()
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a.cancelLLM = nil
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a.llmMu.Unlock()
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fCancel()
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if llmErr == nil {
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a.providerManager.ResetAvailability(fbProvider.Name())
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if fbProvider != a.provider {
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a.provider = fbProvider
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log.Printf("[agent] switched active provider to %q after fallback",
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fbProvider.Name())
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}
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break
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}
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if errors.Is(llmErr, context.Canceled) {
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break
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}
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var pe *agentAPI.ProviderError
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if errors.As(llmErr, &pe) && (pe.StatusCode == 401 || pe.StatusCode == 403) {
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a.providerManager.ReportStatus(fbProvider.Name(), pe.StatusCode)
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log.Printf("[agent] provider %q marked unavailable (HTTP %d)", fbProvider.Name(), pe.StatusCode)
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} else {
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a.providerManager.MarkUnavailable(fbProvider.Name())
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}
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log.Printf("[agent] provider %q failed: %v", fbProvider.Name(), llmErr)
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}
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if llmErr != nil {
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if errors.Is(llmErr, context.Canceled) && a.ctx.Err() == nil {
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if a.currentOutputChannel == "_consolidation_" {
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return "", toolsUsed, fmt.Errorf("interrupted by user input")
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}
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continue
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}
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return "", toolsUsed, fmt.Errorf("all %d providers failed, last error: %w",
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len(providers), llmErr)
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}
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stageCtx.LLMText = resp.Content
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stageCtx.ReasoningContent = resp.ReasoningContent
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stageCtx.TokenUsage = map[string]int{
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"prompt_tokens": resp.TokenUsage.Prompt,
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"completion_tokens": resp.TokenUsage.Completion,
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"total_tokens": resp.TokenUsage.Total,
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}
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stageCtx.ToolCalls = convertToolCalls(resp.ToolCalls)
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for i := range stageCtx.ToolCalls {
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if stageCtx.ToolCalls[i].Plugin == "" {
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stageCtx.ToolCalls[i].Plugin = a.resolveToolPlugin(stageCtx.ToolCalls[i].Name)
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}
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}
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if a.runStage(sdk.StagePostAction, stageCtx) {
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return *stageCtx.Response, toolsUsed, nil
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}
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resp.Content = stageCtx.LLMText
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resp.ToolCalls = convertBackToolCalls(stageCtx.ToolCalls)
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chainPayload := map[string]interface{}{
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"content": resp.Content,
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"reasoning": resp.ReasoningContent,
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"tool_calls": resp.ToolCalls,
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"phase": "intermediate",
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"turn": turn,
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}
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if resp.TokenUsage.Total > 0 {
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chainPayload["usage"] = map[string]int{
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"prompt": resp.TokenUsage.Prompt,
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"completion": resp.TokenUsage.Completion,
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"total": resp.TokenUsage.Total,
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}
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}
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a.publishEvent(events.EventAgentLLMChain, chainPayload)
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if len(resp.ToolCalls) == 0 {
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return resp.Content, toolsUsed, nil
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}
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for _, tc := range resp.ToolCalls {
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if len(a.interceptCh) > 0 {
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for _, interrupt := range a.drainInterrupts() {
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msgs = append(msgs, agentAPI.Message{Role: "system", Content: interrupt})
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}
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a.publishEvent(events.EventToolCall, map[string]interface{}{
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"tool": tc.Name,
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"plugin": a.resolveToolPlugin(tc.Name),
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"args": tc.Arguments,
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"status": "interrupted",
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"reason": "user interrupt before execution",
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})
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break
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}
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toolsUsed = append(toolsUsed, tc.Name)
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pluginName := a.resolveToolPlugin(tc.Name)
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log.Printf("[agent] executing tool: %s (plugin=%s, id=%s)", tc.Name, pluginName, tc.ID)
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sdkTC := sdk.ToolCall{ID: tc.ID, Name: tc.Name, Plugin: pluginName, Arguments: tc.Arguments}
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stageCtx.ToolCalls = []sdk.ToolCall{sdkTC}
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stageCtx.ToolResults = nil
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if a.runStage(sdk.StageBeforeToolcall, stageCtx) {
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result := fmt.Sprintf("工具 %s 已被插件拒绝", tc.Name)
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msgs = append(msgs, agentAPI.Message{Role: "assistant", Content: resp.Content, ToolCalls: []agentAPI.ToolCall{tc}})
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msgs = append(msgs, agentAPI.Message{Role: "tool", ToolCallID: tc.ID, Content: result})
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a.publishEvent(events.EventToolCall, map[string]interface{}{
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"tool": tc.Name,
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"plugin": pluginName,
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"args": tc.Arguments,
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"result": result,
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"status": "denied",
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})
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continue
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}
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tc.Arguments = stageCtx.ToolCalls[0].Arguments
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if pluginName != "" && !a.pluginHealth.isHealthy(pluginName) {
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result := fmt.Sprintf("插件 %s 处于崩溃状态，已跳过执行，等待自动恢复重载", pluginName)
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log.Printf("[agent] skip tool %s: plugin %s unhealthy", tc.Name, pluginName)
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msgs = append(msgs, agentAPI.Message{Role: "assistant", Content: resp.Content, ToolCalls: []agentAPI.ToolCall{tc}})
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msgs = append(msgs, agentAPI.Message{Role: "tool", ToolCallID: tc.ID, Content: result})
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continue
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}
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result := a.executeToolCall(tc)
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log.Printf("[agent] tool %s result: %s", tc.Name, truncateStr(result, 100))
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stageCtx.ToolResults = []sdk.ToolResult{{CallID: tc.ID, Name: tc.Name, Plugin: pluginName, Success: true, Result: result}}
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a.runStage(sdk.StageAfterToolcall, stageCtx)
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if len(stageCtx.ToolResults) > 0 {
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if r, ok := stageCtx.ToolResults[0].Result.(string); ok {
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result = r
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}
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}
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argsJSON, _ := json.Marshal(tc.Arguments)
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a.recordToolCall(tc.Name, string(argsJSON), result)
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msgs = append(msgs, agentAPI.Message{Role: "assistant", Content: resp.Content, ToolCalls: []agentAPI.ToolCall{tc}})
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msgs = append(msgs, agentAPI.Message{Role: "tool", ToolCallID: tc.ID, Content: result})
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a.publishEvent(events.EventToolCall, map[string]interface{}{
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"tool": tc.Name,
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"plugin": pluginName,
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"args": tc.Arguments,
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"result": result,
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"status": "ok",
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})
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if len(a.interceptCh) > 0 {
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for _, interrupt := range a.drainInterrupts() {
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msgs = append(msgs, agentAPI.Message{Role: "system", Content: interrupt})
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}
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break
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}
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}
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}
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}
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func convertToolCalls(tcs []agentAPI.ToolCall) []sdk.ToolCall {
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if tcs == nil {
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return nil
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}
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result := make([]sdk.ToolCall, len(tcs))
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for i, tc := range tcs {
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result[i] = sdk.ToolCall{ID: tc.ID, Name: tc.Name, Arguments: tc.Arguments}
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}
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return result
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}
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func convertBackToolCalls(tcs []sdk.ToolCall) []agentAPI.ToolCall {
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if tcs == nil {
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return nil
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}
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result := make([]agentAPI.ToolCall, len(tcs))
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for i, tc := range tcs {
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result[i] = agentAPI.ToolCall{ID: tc.ID, Name: tc.Name, Arguments: tc.Arguments}
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}
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return result
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}
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func (a *Agent) docStoreSize() int {
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if a.docStore == nil {
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return 0
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}
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s := a.docStore.Stats()
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if n, ok := s["doc_count"]; ok {
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if ni, ok := n.(int); ok {
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return ni
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}
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}
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return 0
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}
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func (a *Agent) recordToolCall(name, args, result string) {
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a.toolCallRingMu.Lock()
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defer a.toolCallRingMu.Unlock()
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if len(args) > 200 {
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args = args[:200] + "..."
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}
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var resultStub string
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var fullResult string
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if len(a.toolCallRing) < 5 {
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fullResult = result
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}
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if len(result) > 80 {
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resultStub = result[:80] + "..."
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} else {
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resultStub = result
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}
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rec := ToolCallRecord{
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Timestamp: time.Now(),
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Name: name,
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Args: args,
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ResultStub: resultStub,
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FullResult: fullResult,
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}
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if len(a.toolCallRing) >= a.toolCallRingMax {
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a.toolCallRing = a.toolCallRing[1:]
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}
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a.toolCallRing = append(a.toolCallRing, rec)
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}
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func (a *Agent) formatToolCallRing() string {
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a.toolCallRingMu.Lock()
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defer a.toolCallRingMu.Unlock()
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if len(a.toolCallRing) == 0 {
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return ""
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}
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var sb strings.Builder
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sb.WriteString("【已执行工具记录(最近40条)】\n")
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start := 0
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if len(a.toolCallRing) > 40 {
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start = len(a.toolCallRing) - 40
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}
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for i, rec := range a.toolCallRing[start:] {
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if len(rec.FullResult) > 0 {
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sb.WriteString(fmt.Sprintf(" [%d] %s: %s(%s)=%s\n", i+1,
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rec.Timestamp.Format("15:04:05"), rec.Name, rec.Args,
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truncateStr(rec.FullResult, 120)))
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} else {
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sb.WriteString(fmt.Sprintf(" [%d] %s: %s(%s) → (已缓存，具体结果通过文本记忆层获取)\n", i+1,
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rec.Timestamp.Format("15:04:05"), rec.Name, rec.Args))
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}
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}
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return sb.String()
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}
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func (a *Agent) formatMergedTimeline() string {
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a.context.mu.Lock()
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events := make([]*ContextEvent, len(a.context.events))
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copy(events, a.context.events)
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a.context.mu.Unlock()
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a.toolCallRingMu.Lock()
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ring := make([]ToolCallRecord, len(a.toolCallRing))
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copy(ring, a.toolCallRing)
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a.toolCallRingMu.Unlock()
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if len(events) == 0 && len(ring) == 0 {
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return ""
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}
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type timelineEntry struct {
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ts time.Time
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label string
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text string
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}
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entries := make([]timelineEntry, 0, len(events)+len(ring))
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for _, e := range events {
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text := fmt.Sprintf("[对话] %s: %s", e.Source, e.Input)
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if len(e.ToolsUsed) > 0 {
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text += fmt.Sprintf(" → 调用工具: %s", strings.Join(e.ToolsUsed, ", "))
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}
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if e.Response != "" {
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text += fmt.Sprintf(" → %s", truncateStr(e.Response, 120))
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}
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entries = append(entries, timelineEntry{ts: e.Timestamp, label: "对话", text: text})
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}
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for _, r := range ring {
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text := fmt.Sprintf("[工具] %s(%s)", r.Name, r.Args)
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if r.FullResult != "" {
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text += fmt.Sprintf(" = %s", truncateStr(r.FullResult, 120))
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} else {
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text += " → (结果已缓存，可通过文本记忆层获取)"
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}
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entries = append(entries, timelineEntry{ts: r.Timestamp, label: "工具", text: text})
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}
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sort.Slice(entries, func(i, j int) bool {
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return entries[i].ts.Before(entries[j].ts)
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})
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var sb strings.Builder
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sb.WriteString("【对话时序】\n")
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for _, e := range entries {
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sb.WriteString(fmt.Sprintf("[%s] %s\n", e.ts.Format("15:04:05"), e.text))
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}
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return sb.String()
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}
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func (a *Agent) buildMessages(sysPrompt, input string) []agentAPI.Message {
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msgs := []agentAPI.Message{{Role: "system", Content: sysPrompt}}
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if ctxStr := a.formatMergedTimeline(); ctxStr != "" {
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msgs = append(msgs, agentAPI.Message{Role: "system", Content: ctxStr})
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}
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msgs = append(msgs, agentAPI.Message{Role: "user", Content: input})
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return msgs
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}
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