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feat(acp): domain types + service interfaces (skeleton)
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// Package acp 实现 ACP(Agent Client Protocol)Client 模块。
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// 模块结构(spec §13 决策 #12):单 package + 多文件,与现有 chat/jobs/workspace 一致。
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//
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// 三个聚合根:
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// - AgentKind:admin 注册的 agent 类型(claude_code/gemini/...),含加密 env
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// - Session:用户启动的一个 ACP 会话,绑定 workspace + agent kind + (issue/req?)
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// - Event:JSON-RPC 双向消息流,每条入库
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package acp
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import (
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"context"
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"time"
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"github.com/google/uuid"
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)
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// SessionStatus 是 acp_sessions.status 枚举。
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type SessionStatus string
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const (
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SessionStarting SessionStatus = "starting"
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SessionRunning SessionStatus = "running"
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SessionCrashed SessionStatus = "crashed"
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SessionExited SessionStatus = "exited"
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)
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// IsActive 判定 session 是否仍占资源(worktree、subprocess、限流计数)。
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func (s SessionStatus) IsActive() bool {
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return s == SessionStarting || s == SessionRunning
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}
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// EventDirection 标识事件流向。in = client→agent,out = agent→client。
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type EventDirection string
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const (
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DirectionIn EventDirection = "in"
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DirectionOut EventDirection = "out"
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)
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// RPCKind 标识 JSON-RPC 消息类型。
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type RPCKind string
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const (
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RPCRequest RPCKind = "request"
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RPCResponse RPCKind = "response"
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RPCNotification RPCKind = "notification"
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RPCError RPCKind = "error"
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)
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// AgentKind 是 admin 注册的 agent 类型记录。EncryptedEnv 是 AES-GCM 密文,
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// 仅 supervisor spawn 时解密为 map 注入子进程。其他场景不解密、不出 API。
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type AgentKind struct {
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ID uuid.UUID
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Name string
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DisplayName string
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Description string
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BinaryPath string
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Args []string
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EncryptedEnv []byte
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Enabled bool
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CreatedBy uuid.UUID
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CreatedAt time.Time
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UpdatedAt time.Time
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}
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// Session 是一次 ACP 会话。AgentSessionID 是 agent 侧的 session 标识(来自
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// session/new response),与本表 ID 不同,仅用于 ACP 协议 method 内填充。
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type Session struct {
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ID uuid.UUID
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WorkspaceID uuid.UUID
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ProjectID uuid.UUID
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AgentKindID uuid.UUID
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UserID uuid.UUID
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IssueID *uuid.UUID
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RequirementID *uuid.UUID
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AgentSessionID *string
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Branch string
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CwdPath string
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IsMainWorktree bool
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Status SessionStatus
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PID *int32
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ExitCode *int32
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LastError *string
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StartedAt time.Time
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EndedAt *time.Time
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}
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// Event 是一条入库的 JSON-RPC 消息。Payload 是 JSON-RPC envelope 完整 JSON
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// 字节(不解析为结构体,便于无损 replay);超过 64KB 的会按 §3.5 规则裁剪。
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type Event struct {
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ID int64
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SessionID uuid.UUID
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Direction EventDirection
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RPCKind RPCKind
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Method *string
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Payload []byte
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PayloadSize int32
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Truncated bool
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CreatedAt time.Time
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}
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// Caller 表示发起请求的用户上下文,与 PM 模块的 Caller 同语义。
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type Caller struct {
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UserID uuid.UUID
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IsAdmin bool
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}
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// AgentKindService 暴露 AgentKind 的应用服务方法。env 走"完整 map 替换"
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// 语义:每次 PATCH 传完整 env,nil 表示不修改;非 nil 整体加密重写。
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type AgentKindService interface {
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Create(ctx context.Context, c Caller, in CreateAgentKindInput) (*AgentKind, error)
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List(ctx context.Context, c Caller) ([]*AgentKind, error)
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Get(ctx context.Context, c Caller, id uuid.UUID) (*AgentKind, error)
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Update(ctx context.Context, c Caller, id uuid.UUID, in UpdateAgentKindInput) (*AgentKind, error)
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Delete(ctx context.Context, c Caller, id uuid.UUID) error
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}
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// SessionService 在 Part 2 实施。占位以便 handler.go 编译通过。
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type SessionService interface {
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// methods filled in Part 2
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}
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// CreateAgentKindInput 携带创建必需字段。Args / Env 可为 nil。
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type CreateAgentKindInput struct {
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Name string
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DisplayName string
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Description string
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BinaryPath string
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Args []string
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Env map[string]string
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Enabled bool
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}
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// UpdateAgentKindInput 是 patch 输入。Name 不可改(创建后稳定,引用约束)。
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// Env 三态:nil = 不修改;空 map = 清空全部 env;非空 = 整体替换。
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type UpdateAgentKindInput struct {
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DisplayName *string
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Description *string
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BinaryPath *string
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Args []string // nil = 不改;非 nil = 替换
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Env map[string]string // nil = 不改;非 nil(含空)= 替换
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Enabled *bool
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}
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