package docgov_test

import (
	"context"
	"testing"

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

func TestMaterializeTemplateDocsIdempotentAndSkipsRealContent(t *testing.T) {
	ctx := context.Background()
	engine := docgov.NewGovernanceEngine(nil)
	specs := []docgov.TemplateDocSpec{{
		TaskKey:        "bd_intake",
		Title:          "用户初始需求收集表",
		StageKey:       "V0.1_triage",
		Enabled:        true,
		DutyPolicy:     "author_only",
		AuthorUserID:   398,
		AuthorName:     "陈威",
		ReviewerUserID: 398,
		ApproverUserID: 398,
	}, {
		TaskKey: "bd_research",
		Title:   "调研报告",
		Enabled: false,
	}}
	if err := engine.MaterializeTemplateDocs(ctx, 6579, specs); err != nil {
		t.Fatal(err)
	}
	specs[0].AuthorName = "陈威"
	if err := engine.MaterializeTemplateDocs(ctx, 6579, specs); err != nil {
		t.Fatal(err)
	}

	docs, err := engine.ListWorkflowDocumentsByProject(ctx, 6579)
	if err != nil {
		t.Fatal(err)
	}
	if len(docs) != 1 {
		t.Fatalf("documents=%d, want 1 enabled template", len(docs))
	}
	if docs[0].DocID != "doc_proj6579_bd_intake" || !docs[0].IsTemplateOnly || docs[0].AuthorID != 398 {
		t.Fatalf("unexpected template doc: %+v", docs[0])
	}
	if docs[0].DutyPolicy != "author_only" {
		t.Fatalf("duty policy=%q", docs[0].DutyPolicy)
	}

	const realID = "doc_proj6579_bd_intake"
	if err := engine.MarkDocumentContentUpdated(ctx, realID, "abc", false); err != nil {
		t.Fatal(err)
	}
	specs[0].AuthorUserID = 9
	specs[0].AuthorName = "系统管理员"
	specs[0].Title = "不应覆盖正文标题"
	if err := engine.MaterializeTemplateDocs(ctx, 6579, specs); err != nil {
		t.Fatal(err)
	}
	got, err := engine.GetDocument(ctx, realID)
	if err != nil {
		t.Fatal(err)
	}
	if got.IsTemplateOnly || got.AuthorID != 398 || got.Title != "用户初始需求收集表" {
		t.Fatalf("real document was overwritten: %+v", got)
	}
}

func TestMaterializeTemplateDocsSkipsCanonicalSibling(t *testing.T) {
	ctx := context.Background()
	engine := docgov.NewGovernanceEngine(nil)
	if _, err := engine.CreateOrGetDocument(
		ctx, "doc_proj70_intake", 70, "intake", "用户初始需求收集表", "V0.1", "",
		1, "编制人", 0, "", 0, "",
	); err != nil {
		t.Fatal(err)
	}
	if err := engine.MaterializeTemplateDocs(ctx, 70, []docgov.TemplateDocSpec{{
		TaskKey:  "bd_intake",
		Title:    "用户初始需求收集表",
		StageKey: "V0.1_triage",
		Enabled:  true,
	}}); err != nil {
		t.Fatal(err)
	}
	docs, err := engine.ListWorkflowDocumentsByProject(ctx, 70)
	if err != nil {
		t.Fatal(err)
	}
	if len(docs) != 1 || docs[0].DocID != "doc_proj70_intake" || docs[0].TaskKey != "intake" {
		t.Fatalf("sibling bd_intake was inserted: %+v", docs)
	}
}