package server

import (
	"testing"

	"chat-agent-system/internal/chat"
	"chat-agent-system/internal/coordinator"
)

func TestBindSessionProjectContext_FillsEmptyProjectID(t *testing.T) {
	sess := chat.NewSession("sess-p6024-u4", &coordinator.UserProjectContext{
		Project: coordinator.ProjectInfo{Name: "吞咽电刺激"},
	}, nil, nil)
	sess.SetProjectID(6024)
	bindSessionProjectContext(sess)
	if sess.UserCtx.Project.ID != "6024" {
		t.Fatalf("project id=%q", sess.UserCtx.Project.ID)
	}
}

// 2026-09-28 回填会话项目绑定后，SetProjectID 会同步协调器上下文：
// 切换项目必须传导（旧断言"保留 9"固化的是切换不生效的缺陷）。
func TestBindSessionProjectContext_SwitchPropagates(t *testing.T) {
	sess := chat.NewSession("sess-keep", &coordinator.UserProjectContext{
		Project: coordinator.ProjectInfo{ID: "9", Name: "已绑定"},
	}, nil, nil)
	sess.SetProjectID(6024)
	if sess.UserCtx.Project.ID != "6024" {
		t.Fatalf("project switch must propagate, got %q", sess.UserCtx.Project.ID)
	}
	bindSessionProjectContext(sess)
	if sess.UserCtx.Project.ID != "6024" {
		t.Fatalf("bind must not overwrite explicit binding, got %q", sess.UserCtx.Project.ID)
	}
}

func TestBindSessionProjectContext_SkipsUnboundSession(t *testing.T) {
	sess := chat.NewSession("sess-none", &coordinator.UserProjectContext{
		Project: coordinator.ProjectInfo{Name: "未选项目"},
	}, nil, nil)
	sess.SetProjectID(0)
	bindSessionProjectContext(sess)
	if sess.UserCtx.Project.ID != "" {
		t.Fatalf("project id=%q", sess.UserCtx.Project.ID)
	}
}