package wfcompile

import (
	"context"
	"crypto/sha256"
	"encoding/json"
	"fmt"
	"os"
	"path/filepath"
	"strings"
	"sync"
	"testing"
	"time"

	agentllm "agent-native/runtime/llm"
	"agent-squad/squad"
	"agent-system-backend/internal/projectcontext"
	"agent-system-backend/internal/workflow"
	core "agent-system-core"
)

// wfcompile_test.go — Q3 WP1 验收：demo.brief / demo.script 经编译图跑通
// （脚本化后端 + 桩验收流，零模型零网络零真 LLM；脚本步走真实 codeorch 宿主，
// 与 legacy workflow_script_test 同款环境假设）。
// demo 定义与 Dev 仓 plugins/example/workflows/ 逐字节同源（backend 独立 CI
// 无法读 Dev 仓文件，故内联；Dev 级 make test 以真实插件装载兜底）。

// ---- demo 定义（内联，同源 plugins/example/workflows/） ----

const demoBriefJSON = `{
  "id": "demo.brief",
  "title": "示例简报",
  "description": "命中 demo.brief 后：选篇幅、起草、落成工件、发一张结果卡，再请用户确认。",
  "intentId": "demo.brief",
  "steps": [
    {
      "id": "length",
      "title": "篇幅",
      "kind": "hitl",
      "hitl": {
        "question": "要多长？",
        "kind": "choice",
        "allowFreeInput": false,
        "choices": [
          {"id": "short", "label": "短", "description": "一段", "impact": "只写一段"},
          {"id": "long", "label": "长", "description": "几段", "impact": "会写得更长"}
        ]
      }
    },
    {
      "id": "draft",
      "title": "起草",
      "kind": "prompt",
      "agent": "research",
      "prompt": "写一份关于「{{slots.topic}}」的简报，篇幅：{{steps.length.output}}。",
      "critic": {"criteria": "必须包含单独一行「核对标记：P4」。没有这一行就不通过，nextAction 请要求补上这一行。", "maxRetries": 1}
    },
    {
      "id": "save",
      "title": "成稿",
      "kind": "artifact",
      "artifact": "demo-brief.md",
      "prompt": "{{steps.draft.output}}"
    },
    {
      "id": "note",
      "title": "收件",
      "kind": "card",
      "card": {"kind": "result", "title": "简报好了", "tone": "ok"}
    },
    {
      "id": "confirm",
      "title": "确认",
      "kind": "hitl",
      "hitl": {
        "question": "这份简报可以用吗？",
        "kind": "confirm",
        "allowFreeInput": false,
        "choices": [
          {"id": "yes", "label": "可以用", "description": "结束", "impact": "不会再改"},
          {"id": "no", "label": "先不用", "description": "结束", "impact": "不会再改"}
        ]
      }
    }
  ]
}`

const demoScriptJSON = `{
  "id": "demo.script",
  "title": "示例脚本",
  "description": "插件自带脚本。需要打开 runtime.workflowScripts。不绑定意图，用 run_workflow 启动。",
  "steps": [
    {
      "id": "run",
      "title": "跑脚本",
      "kind": "script",
      "script": "workflows/scripts/demo.py"
    }
  ]
}`

const demoPyBody = `import agentwf as wf

now = wf.tool("time_now", {})
answer = wf.ask("要记下来吗？", [{"id": "yes", "label": "记下", "impact": "会写入一份备忘"}])
wf.artifact("demo-script.md", "时间 " + now + "\n选择 " + answer)
wf.step("run", "跑脚本", "done")
`

func parseDef(t *testing.T, raw string) core.WorkflowDef {
	t.Helper()
	var def core.WorkflowDef
	if err := json.Unmarshal([]byte(raw), &def); err != nil {
		t.Fatal(err)
	}
	return def
}

// ---- 夹具 ----

// fakeHost 宿主桩（legacy wfFake 同款行为面）。
type fakeHost struct {
	ctx         context.Context
	settings    core.EffectiveSettings
	sandbox     string
	toolNames   []string
	hitl        []core.HITLResponse
	hitlQ       []string
	writes      []string
	cards       []core.ActivityCard
	tools       []core.ToolCallRequest
	plans       []core.PlanSnapshot
	spawnText   string
	spawnIDs    []string
	artSeq      int
	planCurrent core.PlanSnapshot
}

func (f *fakeHost) Context() context.Context {
	if f.ctx == nil {
		return context.Background()
	}
	return f.ctx
}
func (f *fakeHost) Run() core.Run { return core.Run{ID: "run_wfcompile"} }
func (f *fakeHost) Settings() core.EffectiveSettings {
	if f.settings == nil {
		return core.EffectiveSettings{}
	}
	return f.settings
}
func (f *fakeHost) Emit(core.StreamEventType, any) error { return nil }
func (f *fakeHost) AskHITL(card core.HITLCard) (core.HITLResponse, error) {
	f.hitlQ = append(f.hitlQ, card.Question)
	if len(f.hitl) == 0 {
		return core.HITLResponse{}, context.Canceled
	}
	resp := f.hitl[0]
	f.hitl = f.hitl[1:]
	return resp, nil
}
func (f *fakeHost) UpdatePlan(p core.PlanSnapshot) error {
	p.Steps = append([]core.PlanStep(nil), p.Steps...)
	f.plans = append(f.plans, p)
	f.planCurrent = p
	return nil
}
func (f *fakeHost) Plan() (core.PlanSnapshot, bool) {
	if len(f.plans) == 0 {
		return core.PlanSnapshot{}, false
	}
	p := f.plans[len(f.plans)-1]
	p.Steps = append([]core.PlanStep(nil), p.Steps...)
	return p, true
}
func (f *fakeHost) WriteArtifact(name, kind, mime string, content []byte) (core.Artifact, error) {
	f.writes = append(f.writes, name+"="+string(content))
	f.artSeq++
	id := core.ID(fmt.Sprintf("art_%012d", f.artSeq))
	return core.Artifact{ID: id, Name: name, Kind: kind}, nil
}
func (f *fakeHost) ExecuteTool(call core.ToolCallRequest) core.ToolCallResult {
	f.tools = append(f.tools, call)
	if call.Name == "time_now" {
		return core.ToolCallResult{Status: "ok", Output: "12:00"}
	}
	return core.ToolCallResult{Status: "ok", Output: "ok"}
}
func (f *fakeHost) CreateCard(card core.ActivityCard) (core.ActivityCard, error) {
	card.ID = core.ID(fmt.Sprintf("card_%d", len(f.cards)+1))
	f.cards = append(f.cards, card)
	return card, nil
}
func (f *fakeHost) ConversationSandbox() string { return f.sandbox }
func (f *fakeHost) Tools() []core.ToolDesc {
	var out []core.ToolDesc
	for _, name := range f.toolNames {
		out = append(out, core.ToolDesc{Name: name})
	}
	return out
}
func (f *fakeHost) SpawnAgent(agentID, name, task, hint string) (core.AgentResultPayload, error) {
	f.spawnIDs = append(f.spawnIDs, agentID)
	text := f.spawnText
	if text == "" {
		text = "子代理正文"
	}
	return core.AgentResultPayload{Text: text, Status: core.RunCompleted}, nil
}
func (f *fakeHost) SpawnSubagent(name, task, hint string) (core.AgentResultPayload, error) {
	return f.SpawnAgent("agent.sub.general", name, task, hint)
}

// seqBackend 脚本化步骤后端：按调用序回放文本（末条重复）。
type seqBackend struct {
	mu      sync.Mutex
	calls   int
	texts   []string
	prompts []string
}

func (b *seqBackend) Name() string { return "seq" }

func (b *seqBackend) Execute(_ context.Context, req squad.ExecRequest) (*squad.ExecResult, error) {
	b.mu.Lock()
	idx := b.calls
	b.calls++
	b.prompts = append(b.prompts, req.Prompt)
	b.mu.Unlock()
	if idx >= len(b.texts) {
		idx = len(b.texts) - 1
	}
	patches := map[string][]byte{}
	for _, t := range req.Targets {
		body := []byte(b.texts[idx] + "\n")
		patches[t] = body
		if err := os.WriteFile(req.WorkDir+"/"+t, body, 0o644); err != nil {
			return nil, err
		}
	}
	return &squad.ExecResult{Success: true, Patches: patches}, nil
}

// verdictStream 验收模型桩：按序回放判定 JSON（末条重复）。
func verdictStream(seq ...string) agentllm.StreamFunc {
	var mu sync.Mutex
	i := 0
	return func(_ context.Context, _ string, _ []agentllm.Message, _ []agentllm.ToolDecl, _ agentllm.StreamOptions) <-chan agentllm.Event {
		mu.Lock()
		idx := i
		i++
		mu.Unlock()
		if idx >= len(seq) {
			idx = len(seq) - 1
		}
		ch := make(chan agentllm.Event, 1)
		ch <- agentllm.Event{Kind: agentllm.KindTextDelta, Text: seq[idx]}
		close(ch)
		return ch
	}
}

const (
	verdictFail = `{"passed":false,"reason":"缺少核对标记行","nextAction":"补上「核对标记：P4」一行"}`
	verdictPass = `{"passed":true,"reason":"包含核对标记行","nextAction":""}`
)

func seqResolver(t *testing.T, be squad.Executor) *squad.BackendResolver {
	t.Helper()
	r := squad.NewBackendResolver()
	r.Register(be.Name(), func(squad.RoleSpec) (squad.Executor, error) { return be, nil })
	return r
}

func scriptSettings() core.EffectiveSettings {
	return core.EffectiveSettings{"runtime": map[string]any{"workflowScripts": true}}
}

// ---- 编译形状 ----

func TestCompileDemoBriefShape(t *testing.T) {
	def := parseDef(t, demoBriefJSON)
	c, err := Compile(def, workflow.Vars{Slots: map[string]string{"topic": "太空电梯"}}, CompileOptions{}, nil)
	if err != nil {
		t.Fatal(err)
	}
	var ids []string
	for _, s := range c.Plan.Workflow.Steps {
		ids = append(ids, s.ID)
	}
	want := "length,draft,draft_critic,save,note,confirm"
	if strings.Join(ids, ",") != want {
		t.Fatalf("步骤 = %v，期望 %s", ids, want)
	}
	byID := map[string]squad.StepSpec{}
	for _, s := range c.Plan.Workflow.Steps {
		byID[s.ID] = s
	}
	// hitl 步 → wf.hitl，choices 完整进槽位。
	if byID["length"].IntentID != IntentHitl || byID["length"].IntentSlots["question"] != "要多长？" ||
		!strings.Contains(byID["length"].IntentSlots["choices"], "short") {
		t.Fatalf("length = %+v", byID["length"])
	}
	// prompt 步 → 角色步：Brief 渲染槽位、步骤引用编译为文件指引。
	draft := byID["draft"]
	if draft.Role != "research" || draft.IntentID != "" {
		t.Fatalf("draft = %+v", draft)
	}
	if !strings.Contains(draft.Brief, "太空电梯") || strings.Contains(draft.Brief, "{{slots.") {
		t.Fatalf("draft brief 槽位未渲染：%q", draft.Brief)
	}
	if !strings.Contains(draft.Brief, "〈步骤 length 的产出〉") || strings.Contains(draft.Brief, "{{steps.") {
		t.Fatalf("draft brief 步骤引用未编译：%q", draft.Brief)
	}
	// critic → 评审步 + evaluator-optimizer 循环（预算 = maxRetries+1）。
	critic := byID["draft_critic"]
	if critic.IntentID != IntentCritic || critic.Loop == nil {
		t.Fatalf("draft_critic = %+v", critic)
	}
	if critic.Loop.MaxIterations != 2 || critic.Loop.UntilField != "verdict_draft" ||
		critic.Loop.UntilEquals != "pass" || strings.Join(critic.Loop.Body, ",") != "draft" {
		t.Fatalf("loop = %+v", critic.Loop)
	}
	// 依赖链：length←draft←draft_critic←save←note←confirm。
	chain := map[string]string{"draft": "length", "draft_critic": "draft", "save": "draft_critic", "note": "save", "confirm": "note"}
	for id, need := range chain {
		if strings.Join(byID[id].Needs, ",") != need {
			t.Fatalf("%s needs = %v，期望 [%s]", id, byID[id].Needs, need)
		}
	}
	// artifact 步：名字编译期定值；正文里的步骤引用还原为 token，
	// 由宿主处理器运行期按文件解析实值。
	if byID["save"].IntentSlots["name"] != "demo-brief.md" ||
		byID["save"].IntentSlots["content"] != "{{steps.draft.output}}" {
		t.Fatalf("save = %+v", byID["save"].IntentSlots)
	}
	// intent 角色在编制内。
	found := false
	for _, a := range c.Plan.Squad.Agents {
		if a.Role == squad.DefaultIntentRole {
			found = true
		}
	}
	if !found {
		t.Fatal("编制缺 intent 角色")
	}
}

// P4 上限经编译入口强制（validate 同款文案）。
func TestCompileLimitsP4(t *testing.T) {
	steps := make([]core.WorkflowStep, 9)
	for i := range steps {
		steps[i] = core.WorkflowStep{ID: fmt.Sprintf("s%d", i), Title: "步", Kind: "prompt", Prompt: "x"}
	}
	def9 := core.WorkflowDef{ID: "dyn", Title: "九步", Steps: steps}
	if _, err := Compile(def9, workflow.Vars{}, CompileOptions{DynamicLimits: true}, nil); err == nil ||
		!strings.Contains(err.Error(), "超出上限 8") {
		t.Fatalf("动态 9 步应拒绝：%v", err)
	}
	// 动态禁 script。
	defScript := core.WorkflowDef{ID: "dyn2", Title: "动态脚本", Steps: []core.WorkflowStep{
		{ID: "s", Title: "跑", Kind: "script", Script: "a.py"},
	}}
	if _, err := Compile(defScript, workflow.Vars{}, CompileOptions{DynamicLimits: true}, nil); err == nil ||
		!strings.Contains(err.Error(), "不能包含 script") {
		t.Fatalf("动态 script 应拒绝：%v", err)
	}
	// DeniedTools。
	defTool := core.WorkflowDef{ID: "dt", Title: "工具", Steps: []core.WorkflowStep{
		{ID: "s", Title: "跑", Kind: "tool", Tool: "run_python"},
	}}
	if _, err := Compile(defTool, workflow.Vars{}, CompileOptions{}, nil); err == nil ||
		!strings.Contains(err.Error(), "不能调用 run_python") {
		t.Fatalf("DeniedTools 应拒绝：%v", err)
	}
	// critic 每步 ≤3；整条 ≤6。
	defCritic := core.WorkflowDef{ID: "dc", Title: "评审", Steps: []core.WorkflowStep{
		{ID: "s", Title: "写", Kind: "prompt", Prompt: "x", Critic: &core.StepCritic{Criteria: "c", MaxRetries: 4}},
	}}
	if _, err := Compile(defCritic, workflow.Vars{}, CompileOptions{}, nil); err == nil ||
		!strings.Contains(err.Error(), "超过 3") {
		t.Fatalf("critic>3 应拒绝：%v", err)
	}
	defRetry := core.WorkflowDef{ID: "dr", Title: "重试", MaxRetries: 7, Steps: []core.WorkflowStep{
		{ID: "s", Title: "写", Kind: "prompt", Prompt: "x"},
	}}
	if _, err := Compile(defRetry, workflow.Vars{}, CompileOptions{}, nil); err == nil ||
		!strings.Contains(err.Error(), "超过 6") {
		t.Fatalf("maxRetries>6 应拒绝：%v", err)
	}
}

// ---- demo.brief 端到端（critic 重试 + 工件 + 卡 + 确认） ----

func TestRunCompiledDemoBrief(t *testing.T) {
	def := parseDef(t, demoBriefJSON)
	be := &seqBackend{texts: []string{
		"初稿正文：关于太空电梯的简报，篇幅短。（这一版故意缺少核对标记行）",
		"终稿正文：关于太空电梯的简报，篇幅短。\n核对标记：P4",
	}}
	f := &fakeHost{
		toolNames: []string{"time_now"},
		hitl: []core.HITLResponse{
			{ChoiceID: "short"}, // length
			{ChoiceID: "yes"},   // confirm
		},
	}
	out, err := RunCompiled(f, Deps{
		DataDir: t.TempDir(), Backends: seqResolver(t, be), DefaultBackend: "seq",
		JudgeStream: verdictStream(verdictFail, verdictPass),
	}, workflow.Launch{Def: def}, workflow.Vars{Input: "写简报", Slots: map[string]string{"topic": "太空电梯"}}, RunOptions{})
	if err != nil {
		t.Fatalf("err = %v, summary = %s", err, out.Summary)
	}
	// critic 失败一次 → draft 重跑一次（evaluator-optimizer 循环）。
	if be.calls != 2 {
		t.Fatalf("draft 执行 %d 次，期望 2（critic 重试）", be.calls)
	}
	if !strings.Contains(out.Summary, "工作流「示例简报」完成。") || !strings.Contains(out.Summary, "- 起草：done") {
		t.Fatalf("summary = %s", out.Summary)
	}
	// 失败判定进 drops（legacy 同款：重试成功也保留丢弃记录）。
	if !strings.Contains(out.Summary, "已丢弃") || !strings.Contains(out.Summary, "draft：缺少核对标记行") {
		t.Fatalf("drops 缺失：%s", out.Summary)
	}
	// hitl 序列 = length → confirm（无计划确认：注册声明式工作流免确认）。
	if strings.Join(f.hitlQ, "|") != "要多长？|这份简报可以用吗？" {
		t.Fatalf("hitlQ = %v", f.hitlQ)
	}
	// 工件：save 步取 draft 产出（content_ref 文件指引）。
	if len(f.writes) != 1 || !strings.HasPrefix(f.writes[0], "demo-brief.md=") ||
		!strings.Contains(f.writes[0], "核对标记：P4") {
		t.Fatalf("writes = %v", f.writes)
	}
	if !strings.Contains(out.Summary, "工件：art_") {
		t.Fatalf("summary 缺工件行：%s", out.Summary)
	}
	// 卡片。
	if len(f.cards) != 1 || f.cards[0].Title != "简报好了" || f.cards[0].Kind != core.CardKindResult {
		t.Fatalf("cards = %+v", f.cards)
	}
	// draft 的任务书：槽位已渲染 + hitl 答案经黑板 out_length 可见。
	if len(be.prompts) < 1 {
		t.Fatal("draft 未收到任务书")
	}
	p0 := be.prompts[0]
	if !strings.Contains(p0, "太空电梯") || !strings.Contains(p0, "## 任务指令") {
		t.Fatalf("任务书缺指令/槽位：%q", p0)
	}
	if !strings.Contains(p0, "out_length = short") {
		t.Fatalf("任务书黑板缺 out_length：%q", p0)
	}
	// 重试任务书带失败反馈（黑板 reason_draft）。
	if len(be.prompts) == 2 && !strings.Contains(be.prompts[1], "reason_draft") {
		t.Fatalf("重试任务书缺验收反馈：%q", be.prompts[1])
	}
}

type projectSourceHost struct {
	*fakeHost
	boundID     string
	boundHash   [32]byte
	verified    int
	invalidated int
}

type stepContextProbe struct{ got string }

func (p *stepContextProbe) Name() string { return "probe" }
func (p *stepContextProbe) Execute(ctx context.Context, _ squad.ExecRequest) (*squad.ExecResult, error) {
	p.got = projectcontext.WorkflowStepAttempt(ctx)
	return &squad.ExecResult{Success: true}, nil
}

func TestProjectStepBackendCarriesEngineAttempt(t *testing.T) {
	probe := &stepContextProbe{}
	base := squad.NewBackendResolver()
	base.RegisterInstance("probe", probe)
	backend, _, err := projectStepBackends(base, nil, nil, nil).Resolve(squad.RoleSpec{Role: "writer", Backend: "probe"}, "")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := backend.Execute(context.Background(), squad.ExecRequest{ExecutionID: "engine-run/draft/2"}); err != nil {
		t.Fatal(err)
	}
	if probe.got != "engine-run/draft/2" {
		t.Fatalf("model backend lost trusted step attempt: %q", probe.got)
	}
}

func (h *projectSourceHost) Run() core.Run {
	return core.Run{ID: "run_project_wf", ProjectID: "p1", Owner: "alice"}
}
func (h *projectSourceHost) BindProjectStepOutput(_ context.Context, stepID, stepAttemptID, kind string, startedAt time.Time, output []byte) error {
	if kind != "prompt" || stepAttemptID == "" || startedAt.IsZero() {
		return fmt.Errorf("untrusted step binding: %s %s %s", stepID, kind, startedAt)
	}
	h.boundID, h.boundHash = stepID, sha256.Sum256(output)
	return nil
}
func (h *projectSourceHost) VerifyProjectStepOutput(_ context.Context, stepID, stepAttemptID, kind string, output []byte) error {
	h.verified++
	if stepID != h.boundID || stepAttemptID == "" || kind != "prompt" || sha256.Sum256(output) != h.boundHash {
		return fmt.Errorf("step output provenance mismatch: bound=%q/%x got=%q/%x", h.boundID, h.boundHash, stepID, sha256.Sum256(output))
	}
	return nil
}
func (h *projectSourceHost) InvalidateProjectStepOutput(_ context.Context, stepID string) error {
	if stepID == h.boundID {
		h.boundID = ""
		h.boundHash = [32]byte{}
	}
	h.invalidated++
	return nil
}

func TestProjectOutputSinkRejectsConcurrentAndRetriedAttribution(t *testing.T) {
	h := &projectSourceHost{fakeHost: &fakeHost{}}
	root := t.TempDir()
	sub := "tasks/01_draft"
	path := filepath.Join(root, "runs", "engine-run", sub, "output.md")
	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
		t.Fatal(err)
	}
	if err := os.WriteFile(path, []byte("model body"), 0o600); err != nil {
		t.Fatal(err)
	}
	sink := newProjectOutputSink(h, root, map[string]string{"draft": sub}, map[string]string{"draft": "prompt", "other": "tool"})
	started := time.Now().Add(-time.Second)
	if err := h.BindProjectStepOutput(context.Background(), "draft", "engine-run/draft/1", "prompt", started, []byte("old attempt")); err != nil {
		t.Fatal(err)
	}
	sink.Emit(squad.Event{Type: squad.EvStepStarted, RunID: "engine-run", StepID: "draft", At: started})
	if err := h.VerifyProjectStepOutput(context.Background(), "draft", "engine-run/draft/1", "prompt", []byte("old attempt")); err == nil {
		t.Fatal("retry retained previous attempt's binding")
	}
	sink.Emit(squad.Event{Type: squad.EvStepStarted, RunID: "engine-run", StepID: "other", At: started.Add(time.Millisecond)})
	sink.Emit(squad.Event{Type: squad.EvStepCompleted, RunID: "engine-run", StepID: "draft", At: time.Now()})
	if h.boundID != "" || h.invalidated == 0 {
		t.Fatalf("ambiguous retry rebound output: id=%q invalidated=%d", h.boundID, h.invalidated)
	}
}

func TestProjectPromptCriticBindsActualStepOutputBeforeJudge(t *testing.T) {
	f := &projectSourceHost{fakeHost: &fakeHost{hitl: []core.HITLResponse{{ChoiceID: "short"}, {ChoiceID: "yes"}}}}
	be := &seqBackend{texts: []string{"draft text\n核对标记：P4"}}
	_, err := RunCompiled(f, Deps{DataDir: t.TempDir(), Backends: seqResolver(t, be), DefaultBackend: "seq", JudgeStream: verdictStream(verdictPass)},
		workflow.Launch{Def: parseDef(t, demoBriefJSON)}, workflow.Vars{Input: "write", Slots: map[string]string{"topic": "topic"}}, RunOptions{})
	if err != nil {
		t.Fatal(err)
	}
	if f.boundID != "draft" || f.boundHash != sha256.Sum256([]byte("draft text\n核对标记：P4\n")) || f.verified == 0 {
		t.Fatalf("project workflow output lacked trusted step binding: id=%q verified=%d", f.boundID, f.verified)
	}
}

func TestProjectToolCriticRejectsUnprovenOutputBeforeModel(t *testing.T) {
	f := &projectSourceHost{fakeHost: &fakeHost{toolNames: []string{"time_now"}}}
	def := core.WorkflowDef{ID: "tool-critic", Title: "Tool review", Steps: []core.WorkflowStep{{ID: "get", Title: "Read", Kind: "tool", Tool: "time_now", Critic: &core.StepCritic{Criteria: "check"}}}}
	called := false
	judge := func(ctx context.Context, model string, messages []agentllm.Message, tools []agentllm.ToolDecl, opts agentllm.StreamOptions) <-chan agentllm.Event {
		called = true
		return verdictStream(verdictPass)(ctx, model, messages, tools, opts)
	}
	_, err := RunCompiled(f, Deps{DataDir: t.TempDir(), JudgeStream: judge}, workflow.Launch{Def: def}, workflow.Vars{Input: "read"}, RunOptions{})
	if err == nil || called || (!strings.Contains(err.Error(), "产物依据不可用") && !strings.Contains(err.Error(), "unproven machine output")) {
		t.Fatalf("unproven tool output reached judge: err=%v called=%v", err, called)
	}
}

func TestProjectModelStepRejectsEarlierToolOutputInTaskBrief(t *testing.T) {
	f := &projectSourceHost{fakeHost: &fakeHost{toolNames: []string{"time_now"}}}
	be := &seqBackend{texts: []string{"should not run"}}
	def := core.WorkflowDef{ID: "tool-then-model", Title: "Tool then model", Steps: []core.WorkflowStep{
		{ID: "get", Title: "Read", Kind: "tool", Tool: "time_now"},
		{ID: "draft", Title: "Draft", Kind: "prompt", Agent: "writer", Prompt: "use {{steps.get.output}}"},
	}}
	_, err := RunCompiled(f, Deps{DataDir: t.TempDir(), Backends: seqResolver(t, be), DefaultBackend: "seq"}, workflow.Launch{Def: def}, workflow.Vars{Input: "write"}, RunOptions{})
	if err == nil || be.calls != 0 || !strings.Contains(err.Error(), "unproven machine output") {
		t.Fatalf("tool output entered project model step: err=%v modelCalls=%d", err, be.calls)
	}
}

// critic 预算耗尽仍不通过 → 工作流失败（P4 fail-closed）。
func TestRunCompiledCriticExhaustedFails(t *testing.T) {
	def := parseDef(t, demoBriefJSON)
	be := &seqBackend{texts: []string{"每一版都缺少核对标记行的正文，用于验证评审预算耗尽路径。"}}
	f := &fakeHost{
		hitl: []core.HITLResponse{{ChoiceID: "short"}}, // 只到 length；draft 失败后中止
	}
	_, err := RunCompiled(f, Deps{
		DataDir: t.TempDir(), Backends: seqResolver(t, be), DefaultBackend: "seq",
		JudgeStream: verdictStream(verdictFail),
	}, workflow.Launch{Def: def}, workflow.Vars{Slots: map[string]string{"topic": "太空电梯"}}, RunOptions{})
	if err == nil || !strings.Contains(err.Error(), "步骤 draft 未通过验收") {
		t.Fatalf("应 fail-closed：%v", err)
	}
	if be.calls != 2 {
		t.Fatalf("预算 = maxRetries+1 = 2 次执行，实际 %d", be.calls)
	}
}

// ---- demo.script 端到端（插件脚本免确认 + codeorch 宿主回调） ----

func TestRunCompiledDemoScript(t *testing.T) {
	def := parseDef(t, demoScriptJSON)
	f := &fakeHost{
		sandbox:  t.TempDir(),
		settings: scriptSettings(),
		hitl:     []core.HITLResponse{{ChoiceID: "yes"}}, // wf.ask
	}
	out, err := RunCompiled(f, Deps{DataDir: t.TempDir()},
		workflow.Launch{Def: def, Scripts: map[string]string{"workflows/scripts/demo.py": demoPyBody}},
		workflow.Vars{}, RunOptions{})
	if err != nil {
		t.Fatalf("err = %v, summary = %s", err, out.Summary)
	}
	if !strings.Contains(out.Summary, "工作流「示例脚本」完成。") {
		t.Fatalf("summary = %s", out.Summary)
	}
	// 插件脚本免确认：唯一一次 HITL 是脚本内的 wf.ask。
	if strings.Join(f.hitlQ, "|") != "要记下来吗？" {
		t.Fatalf("hitlQ = %v（插件脚本不得追加确认门）", f.hitlQ)
	}
	if len(f.writes) != 1 || f.writes[0] != "demo-script.md=时间 12:00\n选择 yes" {
		t.Fatalf("writes = %v", f.writes)
	}
	if len(f.tools) != 1 || f.tools[0].Name != "time_now" {
		t.Fatalf("tools = %v", f.tools)
	}
	// wf.step 回调 → 计划步态 done。
	sawDone := false
	for _, p := range f.plans {
		for _, s := range p.Steps {
			if s.ID == "run" && s.Status == "done" {
				sawDone = true
			}
		}
	}
	if !sawDone {
		t.Fatal("wf.step 回调未落计划")
	}
	if !strings.Contains(out.Summary, "工件：art_") {
		t.Fatalf("summary 缺工件行：%s", out.Summary)
	}
}

// runtime.workflowScripts 默认关 → 脚本步失败收口（P4 开关语义）。
func TestRunCompiledScriptDisabled(t *testing.T) {
	def := parseDef(t, demoScriptJSON)
	f := &fakeHost{sandbox: t.TempDir()} // settings 空 = 开关关
	out, err := RunCompiled(f, Deps{DataDir: t.TempDir()},
		workflow.Launch{Def: def, Scripts: map[string]string{"workflows/scripts/demo.py": demoPyBody}},
		workflow.Vars{}, RunOptions{})
	if err == nil {
		t.Fatal("开关关闭应失败")
	}
	if !strings.Contains(out.Summary, "停止") || !strings.Contains(out.Summary, "工作流脚本未开启") {
		t.Fatalf("summary = %s", out.Summary)
	}
}

// 模型脚本：计划确认 + 脚本确认双门；拒绝脚本确认 → 「未确认，未执行」。
func TestRunCompiledModelScriptConfirm(t *testing.T) {
	def := core.WorkflowDef{ID: "model.script", Title: "模型脚本", Steps: []core.WorkflowStep{
		{ID: "run", Title: "跑", Kind: "script", Script: "m.py"},
	}}
	body := "import agentwf as wf\nprint(wf.step('run', '跑', 'done'))\n"
	sandbox := t.TempDir()
	// 计划确认过、脚本确认拒 → 步骤产出「未确认，未执行」，工作流正常收口。
	f := &fakeHost{
		sandbox:  sandbox,
		settings: scriptSettings(),
		hitl: []core.HITLResponse{
			{ChoiceID: "approve"}, // 计划确认（engine 门）
			{ChoiceID: "no"},      // 脚本确认
		},
	}
	out, err := RunCompiled(f, Deps{DataDir: t.TempDir()},
		workflow.Launch{Def: def, Scripts: map[string]string{"m.py": body}},
		workflow.Vars{}, RunOptions{RequireConfirm: true, ModelScript: true})
	if err != nil {
		t.Fatalf("err = %v", err)
	}
	if len(f.hitlQ) != 2 || !strings.Contains(f.hitlQ[1], "运行这段脚本？") {
		t.Fatalf("hitlQ = %v", f.hitlQ)
	}
	if !strings.Contains(out.Summary, "- 跑：done") {
		t.Fatalf("summary = %s", out.Summary)
	}
	entries, _ := os.ReadDir(sandbox)
	for _, e := range entries {
		if e.Name() == ".agent" {
			subs, _ := os.ReadDir(sandbox + "/.agent")
			if len(subs) > 0 {
				t.Fatalf("拒绝确认后不应落脚本文件：%v", subs)
			}
		}
	}
	// 计划确认被拒 → legacy 语义「未确认，未执行」。
	f2 := &fakeHost{sandbox: t.TempDir(), settings: scriptSettings(),
		hitl: []core.HITLResponse{{ChoiceID: "abort"}}}
	out2, err2 := RunCompiled(f2, Deps{DataDir: t.TempDir()},
		workflow.Launch{Def: def, Scripts: map[string]string{"m.py": body}},
		workflow.Vars{}, RunOptions{RequireConfirm: true, ModelScript: true})
	if err2 != nil {
		t.Fatal(err2)
	}
	if out2.Summary != "未确认，未执行" {
		t.Fatalf("summary = %s", out2.Summary)
	}
}