// ExecuteTool 工件回填契约（交付物卡片根因修复的验收）：注册表工具经
// rc.WriteArtifact 写入的工件必须出现在 ToolCallResult.Artifact 上——
// llm.go 据此生成对话内 artifact_ref 卡片部件。此前只有超长截断路径会设置它。
package runmgr

import (
	"context"
	"crypto/sha256"
	"encoding/hex"
	"encoding/json"
	"os"
	"path/filepath"
	"reflect"
	"strings"
	"testing"
	"time"

	"agent-document-renderer/render"
	"agent-system-backend/internal/bus"
	"agent-system-backend/internal/docgen"
	"agent-system-backend/internal/settings"
	"agent-system-backend/internal/store"
	"agent-system-backend/internal/tools"
	core "agent-system-core"
)

func newExecEnv(t *testing.T) (*runCtx, *store.Store) {
	t.Helper()
	st, err := store.OpenSQLite(filepath.Join(t.TempDir(), "exec.db"))
	if err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() { st.Close() })
	b := bus.New()
	reg := tools.NewRegistry()
	if err := reg.RegisterBuiltin(); err != nil {
		t.Fatal(err)
	}
	proj, err := st.CreateProject("alice", "p1")
	if err != nil {
		t.Fatal(err)
	}
	conv, err := st.CreateConversation("alice", proj.ID, "c1", "")
	if err != nil {
		t.Fatal(err)
	}
	svc := settings.NewService(st)
	m := &Manager{st: st, bus: b, registry: reg, settings: svc, events: newEventBuffer(st, b)}
	eff := svc.Effective("alice", "")
	c := &runCtx{
		mgr: m, run: core.Run{ProjectID: proj.ID, ConversationID: conv.ID, Owner: "alice"},
		prof: core.AgentProfile{}, eff: eff, ctx: context.Background(),
	}
	return c, st
}

func TestExecuteToolBackfillsArtifact(t *testing.T) {
	c, _ := newExecEnv(t)
	res := c.ExecuteTool(core.ToolCallRequest{
		CallID: "call1", Name: "write_artifact",
		Arguments: json.RawMessage(`{"name":"summary.md","kind":"document","content":"# 摘要正文"}`),
	})
	if res.Status != "ok" {
		t.Fatalf("write_artifact: %s", res.Output)
	}
	if res.Artifact == nil {
		t.Fatal("ToolCallResult.Artifact 未回填——对话内交付物卡片不会出现（回归）")
	}
	if res.Artifact.Name != "summary.md" {
		t.Errorf("回填工件名不符: %+v", res.Artifact)
	}
}

// Arbitrary Python may create local DOCX bytes, but cannot publish them as a
// trusted Word delivery without the host renderer operation.
func TestRunPythonDOCXCannotRegisterAsTrustedDelivery(t *testing.T) {
	c, st := newExecEnv(t)
	root := t.TempDir()
	c.mgr.SetWorkspaceRoot(root)
	if err := tools.RegisterExecTools(c.mgr.registry); err != nil {
		t.Fatal(err)
	}
	if err := tools.RegisterInterpreterTools(c.mgr.registry); err != nil {
		t.Fatal(err)
	}
	// 夹具必须是结构合法的最小 docx：登记口会做 OPC 结构自检，
	// 伪 zip（PK 魔数+垃圾字节）现在会被拒绝而非登记。
	py := c.ExecuteTool(core.ToolCallRequest{
		CallID: "py1", Name: "run_python",
		Arguments: json.RawMessage(`{"script":"import zipfile\nwith zipfile.ZipFile('note.docx','w') as z:\n    z.writestr('[Content_Types].xml','<?xml version=\"1.0\"?><Types/>')\n    z.writestr('word/document.xml','<?xml version=\"1.0\"?><doc/>')\n"}`),
	})
	if py.Status != "ok" || !strings.Contains(py.Output, "exit=0") {
		t.Fatalf("run_python: %s %s", py.Status, py.Output)
	}
	res := c.ExecuteTool(core.ToolCallRequest{
		CallID: "reg1", Name: "register_artifact",
		Arguments: json.RawMessage(`{"path":"note.docx"}`),
	})
	if res.Status != "error" || res.Artifact != nil || !strings.Contains(res.Output, "render_document") {
		t.Fatalf("direct DOCX registration was not rejected: %+v", res)
	}
	b, err := os.ReadFile(filepath.Join(root, "alice", c.run.ConversationID, "note.docx"))
	if err != nil {
		t.Fatal(err)
	}
	if string(b[:4]) != "PK\x03\x04" {
		t.Fatalf("stored bytes: %q", b)
	}
	artifacts, err := st.ListArtifacts("alice", c.run.ProjectID)
	if err != nil || len(artifacts) != 0 {
		t.Fatalf("rejected DOCX became visible: %+v err=%v", artifacts, err)
	}
}

// 空手工具（如 time_now）不得凭空挂 Artifact。
func TestExecuteToolNoArtifactByDefault(t *testing.T) {
	c, _ := newExecEnv(t)
	res := c.ExecuteTool(core.ToolCallRequest{CallID: "c1", Name: "time_now", Arguments: json.RawMessage(`{}`)})
	if res.Status != "ok" || res.Artifact != nil {
		t.Errorf("无产物工具不应携带 Artifact: %+v", res)
	}
}

func TestGeneratedDocxIsSearchable(t *testing.T) {
	c, st := newExecEnv(t)
	const marker = "zebraindexword"
	delivery, err := docgen.Generate(context.Background(), docgen.Request{
		DocumentID: "searchable", Title: "纪要", DocumentType: "general", Language: "zh-CN",
		Markdown: []byte("结论：" + marker), Mode: render.ModePreview,
		FrozenAt: time.Date(2026, 10, 15, 12, 0, 0, 0, time.UTC), RequestedBy: "alice",
	})
	if err != nil {
		t.Fatal(err)
	}
	mime := "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
	if _, err := c.WriteArtifact("note.docx", "document", mime, delivery.DOCX.Bytes); err != nil {
		t.Fatal(err)
	}
	hits, err := st.SearchKnowledge("alice", core.RetrievalQuery{Text: marker, ProjectID: c.run.ProjectID, TopK: 5})
	if err != nil {
		t.Fatal(err)
	}
	if len(hits) == 0 {
		t.Fatal("generated docx text was not indexed")
	}
	if _, err := c.WriteArtifact("bad.docx", "document", mime, []byte("notazipmarker")); err != nil {
		t.Fatal(err)
	}
	hits, err = st.SearchKnowledge("alice", core.RetrievalQuery{Text: "notazipmarker", ProjectID: c.run.ProjectID, TopK: 5})
	if err != nil {
		t.Fatal(err)
	}
	if len(hits) != 0 {
		t.Fatalf("unparseable docx bytes should not be indexed, got %d hits", len(hits))
	}
}

func TestRenderedDeliverySurvivesRestartWithStableIdentity(t *testing.T) {
	databasePath := filepath.Join(t.TempDir(), "renderer-restart.db")
	st, err := store.OpenSQLite(databasePath)
	if err != nil {
		t.Fatal(err)
	}
	if err := st.EnsureUser("alice", "Alice"); err != nil {
		t.Fatal(err)
	}
	registry := tools.NewRegistry()
	if err := registry.RegisterBuiltin(); err != nil {
		t.Fatal(err)
	}
	project, err := st.CreateProject("alice", "p1")
	if err != nil {
		t.Fatal(err)
	}
	conversation, err := st.CreateConversation("alice", project.ID, "c1", "")
	if err != nil {
		t.Fatal(err)
	}
	eventBus := bus.New()
	events := newEventBuffer(st, eventBus)
	eventsStopped := false
	t.Cleanup(func() {
		if !eventsStopped {
			events.stop()
		}
	})
	manager := &Manager{st: st, bus: eventBus, registry: registry, settings: settings.NewService(st), events: events}
	run := &runCtx{
		mgr: manager, run: core.Run{ID: "run-before-restart", ProjectID: project.ID, ConversationID: conversation.ID, Owner: "alice"},
		prof: core.AgentProfile{}, eff: manager.settings.Effective("alice", ""), ctx: context.Background(),
	}
	args := json.RawMessage(`{"operationId":"restart-operation","name":"重启纪要","documentId":"restart-minutes","documentType":"general","language":"zh-CN","markdown":"# 重启纪要\n\n缓存身份保持。\n","mode":"preview","controlled":false,"projectDocument":false}`)
	result := run.ExecuteTool(core.ToolCallRequest{CallID: "render-restart", Name: "render_document", Arguments: args})
	if result.Status != "ok" {
		t.Fatalf("render_document: %s", result.Output)
	}
	var firstReceipt docgen.OperationReceipt
	if err := json.Unmarshal([]byte(result.Output), &firstReceipt); err != nil || firstReceipt.FrozenAt.IsZero() {
		t.Fatalf("first receipt=%#v err=%v", firstReceipt, err)
	}
	artifacts, err := st.ListArtifacts("alice", project.ID)
	if err != nil || len(artifacts) != 4 {
		t.Fatalf("stored artifacts=%d err=%v", len(artifacts), err)
	}
	want := map[string]string{}
	for _, item := range artifacts {
		raw, err := st.ArtifactContentByID(item.ID)
		if err != nil {
			t.Fatal(err)
		}
		sum := sha256.Sum256(raw)
		want[item.ID] = hex.EncodeToString(sum[:])
	}
	events.stop()
	eventsStopped = true
	if err := st.Close(); err != nil {
		t.Fatal(err)
	}

	reopened, err := store.OpenSQLite(databasePath)
	if err != nil {
		t.Fatal(err)
	}
	defer reopened.Close()
	reopenedBus := bus.New()
	reopenedEvents := newEventBuffer(reopened, reopenedBus)
	defer reopenedEvents.stop()
	reopenedManager := &Manager{st: reopened, bus: reopenedBus, registry: registry, settings: settings.NewService(reopened), events: reopenedEvents}
	reopenedRun := &runCtx{
		mgr: reopenedManager, run: core.Run{ID: "run-after-restart", ProjectID: project.ID, ConversationID: conversation.ID, Owner: "alice"},
		prof: core.AgentProfile{}, eff: reopenedManager.settings.Effective("alice", ""), ctx: context.Background(),
	}
	retryResult := reopenedRun.ExecuteTool(core.ToolCallRequest{CallID: "render-restart-retry", Name: "render_document", Arguments: args})
	if retryResult.Status != "ok" {
		t.Fatalf("restart retry: %s", retryResult.Output)
	}
	var retryReceipt docgen.OperationReceipt
	if err := json.Unmarshal([]byte(retryResult.Output), &retryReceipt); err != nil || !retryReceipt.CacheHit ||
		!retryReceipt.FrozenAt.Equal(firstReceipt.FrozenAt) || !reflect.DeepEqual(retryReceipt.Artifacts, firstReceipt.Artifacts) {
		t.Fatalf("restart receipt changed: first=%#v retry=%#v err=%v", firstReceipt, retryReceipt, err)
	}
	for artifactID, wantHash := range want {
		raw, err := reopened.ArtifactContentByID(artifactID)
		if err != nil {
			t.Fatalf("artifact %s after restart: %v", artifactID, err)
		}
		sum := sha256.Sum256(raw)
		if got := hex.EncodeToString(sum[:]); got != wantHash {
			t.Errorf("artifact %s hash after restart = %s, want %s", artifactID, got, wantHash)
		}
	}
}