HomeAgent/internal/sdk/plugin.go

package sdk

import (
	"log"
	"sync"

	agentIO "gitcode.com/JianFeeeee/HomeAgent/internal/agent/io"
	"gitcode.com/JianFeeeee/HomeAgent/internal/events"
	pubsdk "gitcode.com/JianFeeeee/homeagent-sdk/sdk"
)

// SDKVersion 是对外 SDK 版本号，与核心 meta.Version 保持一致。
var SDKVersion = pubsdk.SDKVersion

type Plugin interface {
	Name() string
	Start(sdk *PluginSDK) error
	Stop() error
}

type ToolHandler = pubsdk.ToolHandler
type StageHandler = pubsdk.StageHandler

type Stage = pubsdk.Stage

const (
	StageOnInput        = pubsdk.StageOnInput
	StagePreAction      = pubsdk.StagePreAction
	StagePostAction     = pubsdk.StagePostAction
	StageBeforeToolcall = pubsdk.StageBeforeToolcall
	StageAfterToolcall  = pubsdk.StageAfterToolcall
	StageBeforeOutput   = pubsdk.StageBeforeOutput
	StageAfterOutput    = pubsdk.StageAfterOutput
)

type StageContext = pubsdk.StageContext
type MemItem = pubsdk.MemItem
type ToolCall = pubsdk.ToolCall
type ToolResult = pubsdk.ToolResult
type ToolDef = pubsdk.ToolDef
type IOInjector = pubsdk.IOInjector
type ToolRegistrar = pubsdk.ToolRegistrar
type StageRegistrar = pubsdk.StageRegistrar
type StageScope = pubsdk.StageScope

const (
	StageScopeGlobal   = pubsdk.StageScopeGlobal
	StageScopeOwnTools = pubsdk.StageScopeOwnTools
)

type APIRegistrar = pubsdk.APIRegistrar
type OutputChannelRegistrar = pubsdk.OutputChannelRegistrar
type InputChannelRegistrar = pubsdk.InputChannelRegistrar
type ChannelDef = pubsdk.ChannelDef

type DisabledPluginInfo struct {
	Name       string `json:"name"`
	DisabledAt string `json:"disabled_at"`
	DisabledBy string `json:"disabled_by"`
}

// PluginMeta is the display-name metadata for a plugin (from plg.json / RegisterPluginMeta).
type PluginMeta struct {
	NameZh string `json:"name_zh"`
	NameEn string `json:"name_en"`
}

// PluginRuntimeInfo 是插件的**运行期**状态，与 plugin.json 里的静态元数据相对。
//
// 为何需要：子进程插件的进程可能已经死了而注册表里还有条目（或反过来，
// 崩溃摘除后注册表已无条目但目录还在）。此前 plugin_list / GET /plugins
// 只读 plugin.json，无论插件死活都返回同一份内容——WebUI 与模型都看不出
// 「已安装」与「正在运行」的区别，插件被 kill 后只表现为工具静默失败。
type PluginRuntimeInfo struct {
	Name string `json:"name"`
	// Loaded 表示注册表中存在该插件实例。
	Loaded bool `json:"loaded"`
	// Disabled 表示插件被显式禁用（不该运行）。
	Disabled bool `json:"disabled"`
	// Builtin 表示编译期内置插件（无独立进程）。
	Builtin bool `json:"builtin"`
	// Channel 是加载通道：proc（子进程）/ lua / builtin。
	Channel string `json:"channel"`
	// PID 是子进程插件的进程号；非子进程或已退出为 0。
	PID int `json:"pid"`
	// Alive 表示子进程仍存活；非子进程插件与 Loaded 同值。
	Alive bool `json:"alive"`
	// CrashCount 是最近窗口内的崩溃次数（0 表示健康）。
	CrashCount int `json:"crash_count"`
	// AutoRestart 表示崩溃后内核是否会自动拉起。
	AutoRestart bool `json:"auto_restart"`
	// Tools 是该插件当前注册在内核里的工具名。
	Tools []string `json:"tools,omitempty"`
}

type PluginManager interface {
	ListLoadedPlugins() []string
	ListDisabledPlugins() []DisabledPluginInfo
	IsPluginDisabled(name string) bool
	// IsBuiltinPlugin 判断插件是否为内置插件（编译期工厂，init() 自注册）。
	// 内置插件只能禁用/启用，不能卸载。
	IsBuiltinPlugin(name string) bool
	DisablePlugin(name, by string) error
	EnablePlugin(name string) error
	// RemovePlugin 卸载插件：先停止（stop handlers + Stop），再执行插件注册的
	// onRemove 回调（RegisterOnRemoveHandler），最后从注册表移除并清理配置表。
	// 目录删除由调用方负责。
	RemovePlugin(name string) error
	// StopAndUnload 停止并从注册表移除插件但保留配置表，供更新/升级流程使用：
	// 换产物不动配置，重装后配置原样生效。不触发 onRemove 回调。
	StopAndUnload(name string) error
	ReloadPlugins() (string, error)
	// ReloadOne 重载单个插件（停止后重新加载，处理 dlclose/dynamic 句柄）。
	ReloadOne(name string) error
	PluginMetas() map[string]PluginMeta
	PluginDir() string
	// PluginRuntime 返回单个插件的运行期状态（进程存活 / PID / 崩溃计数）。
	// 未安装的插件返回零值 + false。
	PluginRuntime(name string) (PluginRuntimeInfo, bool)
	// ListPluginRuntimes 返回全部已加载插件的运行期状态。
	ListPluginRuntimes() []PluginRuntimeInfo
}

type PluginSDK struct {
	*pubsdk.PluginSDK
	settings SettingsAPI
	memory   MemoryAPI
	textMem  TextMemoryAPI
	docMem   DocMemoryAPI
	know     KnowledgeAPI
	llm      LLMAPI

	iom       *agentIO.IOManager
	eventBus  *events.Bus
	logger    *log.Logger
	pluginMgr PluginManager

	status     StatusAPI
	supervisor SupervisorAPI
	adapter    AdapterAPI
	tracker    TrackerAPI
	config     ConfigAPI
	tool       ToolAPI
	indexer    IndexerAPI

	selftestMu sync.Mutex
	selftest   *VirtualInstance
}

func (s *PluginSDK) PluginMgr() PluginManager { return s.pluginMgr }

// 以下访问器遮蔽公共 SDK 的同名方法，返回内置插件可用的全量接口。

func (s *PluginSDK) Settings() SettingsAPI     { return s.settings }
func (s *PluginSDK) Memory() MemoryAPI         { return s.memory }
func (s *PluginSDK) TextMemory() TextMemoryAPI { return s.textMem }
func (s *PluginSDK) DocMemory() DocMemoryAPI   { return s.docMem }
func (s *PluginSDK) Knowledge() KnowledgeAPI   { return s.know }
func (s *PluginSDK) LLM() LLMAPI               { return s.llm }

// ioAdapter 桥接 IOManager 到公共 SDK 的 IOInjector 接口，
// 确保外部插件通过 s.InjectText() 等方法的调用能被路由到内核 IO 层。
type ioAdapter struct{ iom *agentIO.IOManager }

func (a ioAdapter) InjectInterruptText(source, channel, text string) {
	if a.iom != nil {
		a.iom.InjectInterrupt(source, channel, map[string]interface{}{"type": "text", "content": text})
	}
}

// InjectInputSync 同步注入输入并等待回复（阻塞直至 agent 处理完成），返回回复文本。
func (a ioAdapter) InjectInputSync(source, channel, text string) string {
	if a.iom == nil {
		return ""
	}
	out := a.iom.InjectInputSyncTo(source, channel, "text", map[string]interface{}{
		"content": text,
	})
	if out == nil {
		return ""
	}
	reply, _ := out.Payload["content"].(string)
	return reply
}

func (a ioAdapter) InjectText(source, channel, text string) {
	if a.iom != nil {
		a.iom.InjectInputTo(source, channel, "text", map[string]interface{}{"content": text})
	}
}

func (a ioAdapter) InjectTextNoMemory(source, channel, text string) {
	if a.iom != nil {
		a.iom.InjectInputTo(source, channel, "text", map[string]interface{}{"content": text, "no_memory": true})
	}
}

// SDKConfig holds all dependencies for creating a PluginSDK.
type SDKConfig struct {
	IOManager  *agentIO.IOManager
	EventBus   *events.Bus
	Memory     MemoryAPI
	TextMemory TextMemoryAPI
	DocMemory  DocMemoryAPI
	Knowledge  KnowledgeAPI
	LLM        LLMAPI
	Settings   SettingsAPI
	RegTool    ToolRegistrar
	RegStage   StageRegistrar
	RegAPI     APIRegistrar
	RegOutput  OutputChannelRegistrar
	RegInput   InputChannelRegistrar
	PluginMgr  PluginManager

	Status     StatusAPI
	Supervisor SupervisorAPI
	Adapter    AdapterAPI
	Tracker    TrackerAPI
	Config     ConfigAPI
	Tool       ToolAPI
	Indexer    IndexerAPI
}

func New(name string, cfg SDKConfig) *PluginSDK {
	base := pubsdk.New(name, cfg.Settings, cfg.RegTool, cfg.RegStage, cfg.RegAPI, cfg.RegOutput)
	if cfg.IOManager != nil {
		base.SetIOInjector(ioAdapter{iom: cfg.IOManager})
	}
	if cfg.RegInput != nil {
		base.SetInputChannelRegistrar(cfg.RegInput)
	}
	base.SetMemoryAPI(cfg.Memory)
	base.SetTextMemoryAPI(cfg.TextMemory)
	base.SetDocMemoryAPI(cfg.DocMemory)
	base.SetKnowledgeAPI(cfg.Knowledge)
	base.SetLLMAPI(cfg.LLM)
	return &PluginSDK{
		PluginSDK: base,
		settings:  cfg.Settings,
		memory:    cfg.Memory,
		textMem:   cfg.TextMemory,
		docMem:    cfg.DocMemory,
		know:      cfg.Knowledge,
		llm:       cfg.LLM,

		iom:       cfg.IOManager,
		eventBus:  cfg.EventBus,
		logger:    log.Default(),
		pluginMgr: cfg.PluginMgr,

		status:     cfg.Status,
		supervisor: cfg.Supervisor,
		adapter:    cfg.Adapter,
		tracker:    cfg.Tracker,
		config:     cfg.Config,
		tool:       cfg.Tool,
		indexer:    cfg.Indexer,
	}
}

// Selftest 返回一个隔离的虚拟自检实例（healthcheck 等内置插件用），
// 完全独立于生产存储，不产生任何污染。首次调用创建，复用已存在实例；
// 每轮自检前调用 SelftestReset 重建以清空上轮测试数据。
func (s *PluginSDK) Selftest(scope string) (*VirtualInstance, error) {
	s.selftestMu.Lock()
	defer s.selftestMu.Unlock()
	if s.selftest == nil {
		vi, err := NewVirtualInstance(scope)
		if err != nil {
			return nil, err
		}
		s.selftest = vi
	}
	return s.selftest, nil
}

// SelftestReset 清理并重建隔离自检实例，用于每轮健康检查前重置状态。
func (s *PluginSDK) SelftestReset(scope string) error {
	s.selftestMu.Lock()
	defer s.selftestMu.Unlock()
	if s.selftest == nil {
		vi, err := NewVirtualInstance(scope)
		if err != nil {
			return err
		}
		s.selftest = vi
		return nil
	}
	vi, err := s.selftest.Reset(scope)
	if err != nil {
		return err
	}
	s.selftest = vi
	return nil
}

func (s *PluginSDK) Status() StatusAPI         { return s.status }
func (s *PluginSDK) Supervisor() SupervisorAPI { return s.supervisor }
func (s *PluginSDK) Adapter() AdapterAPI       { return s.adapter }
func (s *PluginSDK) Tracker() TrackerAPI       { return s.tracker }
func (s *PluginSDK) Config() ConfigAPI         { return s.config }
func (s *PluginSDK) Tool() ToolAPI             { return s.tool }
func (s *PluginSDK) Indexer() IndexerAPI       { return s.indexer }

func (s *PluginSDK) InjectInput(source, channel, eventType string, payload map[string]interface{}) {
	if s.iom != nil {
		s.iom.InjectInputTo(source, channel, eventType, payload)
	}
}

func (s *PluginSDK) InjectInputSync(source, channel, eventType string, payload map[string]interface{}) *agentIO.OutputEvent {
	if s.iom != nil {
		return s.iom.InjectInputSyncTo(source, channel, eventType, payload)
	}
	return nil
}

func (s *PluginSDK) InjectInterrupt(source, channel, eventType string, payload map[string]interface{}) {
	if s.iom != nil {
		if payload == nil {
			payload = map[string]interface{}{}
		}
		payload["type"] = eventType
		s.iom.InjectInterrupt(source, channel, payload)
	}
}

func (s *PluginSDK) InjectTextSync(source, channel, text string) *agentIO.OutputEvent {
	return s.InjectInputSync(source, channel, "text", map[string]interface{}{"content": text})
}

func (s *PluginSDK) InjectTextSyncNoMemory(source, channel, text string) *agentIO.OutputEvent {
	return s.InjectInputSync(source, channel, "text", map[string]interface{}{"content": text, "no_memory": true})
}

func (s *PluginSDK) OutputChan() <-chan *agentIO.OutputEvent {
	if s.iom != nil {
		return s.iom.OutputChan()
	}
	return nil
}

func (s *PluginSDK) RegisterChannel(name string, dev agentIO.Device) error {
	if s.iom != nil {
		return s.iom.RegisterDevice(dev)
	}
	return nil
}

func (s *PluginSDK) UnregisterChannel(name string) {
	if s.iom != nil {
		s.iom.UnregisterDevice(name)
	}
}

func (s *PluginSDK) ListChannels() []agentIO.ChannelInfo {
	if s.iom != nil {
		return s.iom.ListChannels()
	}
	return nil
}

func (s *PluginSDK) Publish(evt *events.Event) {
	if s.eventBus != nil {
		s.eventBus.Publish(evt)
	}
}

func (s *PluginSDK) Subscribe(eventType events.EventType, handler events.Handler) func() {
	if s.eventBus != nil {
		return s.eventBus.Subscribe(eventType, handler)
	}
	return func() {}
}

// SetToolBlocks 桥接到 IOManager：插件工具注入多模态块，process.go 消费。
func (a ioAdapter) SetToolBlocks(blocks []pubsdk.ContentBlock) {
	if a.iom == nil {
		return
	}
	ifaces := make([]interface{}, len(blocks))
	for i, b := range blocks {
		ifaces[i] = b
	}
	a.iom.SetToolBlocks(ifaces)
}

// SetToolBlocks 注入多模态内容块（图片/音频），内核在下一条 tool message
// 的 content 数组里带上这些块，让模型在后续轮次看到图/听到音频。
func (s *PluginSDK) SetToolBlocks(blocks []pubsdk.ContentBlock) {
	if s.iom != nil {
		ifaces := make([]interface{}, len(blocks))
		for i, b := range blocks {
			ifaces[i] = b
		}
		s.iom.SetToolBlocks(ifaces)
	}
}