From ce28b822f90aac798f70e28ff908c45df171f857 Mon Sep 17 00:00:00 2001
From: Jerry Yan <792602257@qq.com>
Date: Thu, 7 May 2026 14:09:42 +0800
Subject: [PATCH] feat(acp): SessionService interface + CreateSessionInput

---
 internal/acp/domain.go | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/internal/acp/domain.go b/internal/acp/domain.go
index 3976be5..6582d75 100644
--- a/internal/acp/domain.go
+++ b/internal/acp/domain.go
@@ -115,9 +115,23 @@ type AgentKindService interface {
 	Delete(ctx context.Context, c Caller, id uuid.UUID) error
 }
 
-// SessionService 在 Part 2 实施。占位以便 handler.go 编译通过。
+// SessionService 暴露 Session 聚合根的应用服务方法。
 type SessionService interface {
-	// methods filled in Part 2
+	Create(ctx context.Context, c Caller, in CreateSessionInput) (*Session, error)
+	Get(ctx context.Context, c Caller, id uuid.UUID) (*Session, error)
+	List(ctx context.Context, c Caller, all bool) ([]*Session, error)
+	Terminate(ctx context.Context, c Caller, id uuid.UUID) error
+}
+
+// CreateSessionInput 是创建 session 的入参。
+// branch / issue_number / requirement_number 三选一或全空（spec §8.1）。
+type CreateSessionInput struct {
+	WorkspaceID       uuid.UUID
+	AgentKindID       uuid.UUID
+	Branch            *string
+	IssueNumber       *int
+	RequirementNumber *int
+	InitialPrompt     *string
 }
 
 // CreateAgentKindInput 携带创建必需字段。Args / Env 可为 nil。