// @ts-ignore vitest is not installed locally but provided by npx vitest at test time
import { describe, it, expect } from "vitest";
import {
    buildDocxEditSurface,
    renderDocxEditSurfaceForModel,
} from "./docxTrackedChanges";
import {
    TOOLS,
    makeCommentKey,
    verifyCommentBatchPostWrite,
    validateCommentPlanIntent,
    validatePlannedFinding,
    validateFindingTargetEvidence,
    buildWriterAnchorEligibilityFailures,
    buildCandidateContext,
    isPassItem,
    buildIgnoredPassReport,
    buildApplySummary,
    type CommentPlanIntent,
} from "./chatTools";

// Helper to build a minimal DOCX with a table using the docx package
async function buildTestDocx(): Promise<Buffer> {
    const { Document, Paragraph, Table, TableRow, TableCell, Packer } = await import("docx");
    const doc = new Document({
        sections: [{
            children: [
                new Paragraph({ text: "First body paragraph." }),
                new Table({
                    rows: [
                        new TableRow({
                            children: [
                                new TableCell({ children: [new Paragraph({ text: "Cell one text." })] }),
                                new TableCell({ children: [new Paragraph({ text: "Cell two text." })] }),
                            ],
                        }),
                    ],
                }),
                new Paragraph({ text: "Last body paragraph." }),
            ],
        }],
    });
    return Buffer.from(await Packer.toBuffer(doc));
}

// Helper to build a DOCX that differs in body text
async function buildModifiedDocx(): Promise<Buffer> {
    const { Document, Paragraph, Packer } = await import("docx");
    const doc = new Document({
        sections: [{
            children: [
                new Paragraph({ text: "Modified first body paragraph." }),
                new Paragraph({ text: "Last body paragraph." }),
            ],
        }],
    });
    return Buffer.from(await Packer.toBuffer(doc));
}

// Helper to inject a comments.xml into a docx buffer
async function injectCommentsXml(docxBytes: Buffer, commentCount: number): Promise<Buffer> {
    const JSZip = (await import("jszip")).default;
    const zip = await JSZip.loadAsync(docxBytes);
    const commentsXml = `<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<w:comments xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main">
${Array.from({ length: commentCount }, (_, i) =>
    `<w:comment w:id="${i}" w:author="Mike"><w:p><w:r><w:t>Comment ${i}</w:t></w:r></w:p></w:comment>`
).join("\n")}
</w:comments>`;
    zip.file("word/comments.xml", commentsXml);
    const [contentTypes] = await Promise.all([
        zip.file("[Content_Types].xml")?.async("string") ?? "",
    ]);
    let newContentTypes = contentTypes;
    if (!contentTypes.includes("comments.xml")) {
        newContentTypes = contentTypes.replace(
            "</Types>",
            '<Override PartName="/word/comments.xml" ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.comments+xml"/></Types>'
        );
        zip.file("[Content_Types].xml", newContentTypes);
    }
    return Buffer.from(await zip.generateAsync({ type: "nodebuffer", compression: "DEFLATE" }));
}

// Build a synthetic anchor manifest from a surface for testing validateCommentPlanIntent
function buildTestManifest(surface: Awaited<ReturnType<typeof buildDocxEditSurface>>) {
    const anchorMap = new Map();
    for (const a of surface.anchors) anchorMap.set(a.block_id, a);
    return {
        docLabel: "doc-0",
        documentId: "doc-uuid",
        docRevisionId: surface.surfaceId,
        surfaceId: surface.surfaceId,
        readSerial: 1,
        anchors: anchorMap,
    };
}

function completeIntent(
    overrides: Partial<CommentPlanIntent> = {},
): CommentPlanIntent {
    return {
        block_id: "P_0001",
        comment:
            "[RISK] Issue: Delivery wording is unclear. | Zamil Impact: Delay exposure. | Recommended Action: Clarify the trigger.",
        comment_key: "delivery-trigger",
        status: "RISK",
        reasoning: {
            clause_section: "Section 6 – Delivery",
            violated_standard: "Delivery trigger must be objective.",
            zamil_exposure: "Delivery timing may become disputed.",
        },
        target_text: "First body paragraph.",
        type: "COMMENT",
        ...overrides,
    };
}

describe("Comment batch pipeline — best-of-both-worlds refactor", () => {
    describe("Phase 1-2: Document surface and table-cell support", () => {
        it("includes table-cell paragraphs in the edit surface", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);

            // Should have 4 paragraphs: first body + 2 table cells + last body
            expect(surface.blocks.length).toBe(4);
            expect(surface.anchors.length).toBe(4);
        });

        it("exposes container=table_cell in the model surface render", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const rendered = renderDocxEditSurfaceForModel(surface);

            expect(rendered).toContain("container=table_cell");
            const tableCellBlocks = surface.anchors.filter((a) => a.container === "table_cell");
            expect(tableCellBlocks.length).toBe(2);

            for (const anchor of tableCellBlocks) {
                expect(rendered).toContain(`[[${anchor.block_id} type=paragraph container=table_cell`);
            }
        });

        it("does not skip paragraphs inside tables", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const tableTexts = surface.blocks
                .filter((_, i) => surface.anchors[i]?.container === "table_cell")
                .map((b) => b.text);

            expect(tableTexts).toContain("Cell one text.");
            expect(tableTexts).toContain("Cell two text.");
        });
    });

    describe("Phase 3-6: Anchor validation and comment keys", () => {
        it("uses explicit comment_key when provided", () => {
            const key = makeCommentKey({
                doc_id: "doc-0",
                block_id: "P_0001",
                target_text: "",
                anchor_mode: "paragraph",
                comment: "Some issue",
                comment_key: "delivery-timeline-issue",
            });
            expect(key).toBe("doc-0:delivery-timeline-issue");
        });

        it("falls back to doc_id:block_id:comment digest when comment_key is missing", () => {
            const key = makeCommentKey({
                doc_id: "doc-0",
                block_id: "P_0001",
                target_text: "",
                anchor_mode: "paragraph",
                comment: "Some issue here",
            });
            expect(key).toBe("doc-0:P_0001:Some issue here");
        });
    });

    describe("Phase 3: validateCommentPlanIntent against manifest", () => {
        it("passes when block_id exists in manifest and hashes match", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const manifest = buildTestManifest(surface);

            const result = validateCommentPlanIntent({
                intent: { block_id: "P_0001", comment: "Test comment" },
                manifest: manifest as any,
                currentSurface: surface,
            });

            expect(result.ok).toBe(true);
            if (result.ok) {
                expect(result.anchor.block_id).toBe("P_0001");
            }
        });

        it("fails with anchor_not_found when block_id is not in manifest", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const manifest = buildTestManifest(surface);

            const result = validateCommentPlanIntent({
                intent: { block_id: "P_9999", comment: "Test comment" },
                manifest: manifest as any,
                currentSurface: surface,
            });

            expect(result.ok).toBe(false);
            if (!result.ok) {
                expect(result.failureCode).toBe("anchor_not_found");
            }
        });

        it("fails with anchor_revision_stale when manifest surfaceId mismatches currentSurface", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const manifest = buildTestManifest(surface);
            // Mutate manifest surfaceId to simulate stale read
            const staleManifest = { ...manifest, docRevisionId: "stale:surface", surfaceId: "stale:surface" };

            const result = validateCommentPlanIntent({
                intent: { block_id: "P_0001", comment: "Test comment" },
                manifest: staleManifest as any,
                currentSurface: surface,
            });

            expect(result.ok).toBe(false);
            if (!result.ok) {
                expect(result.failureCode).toBe("anchor_revision_stale");
            }
        });

        it("fails with anchor_stale_requires_document_refresh when currentSurface is missing the block", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const manifest = buildTestManifest(surface);

            // Create a currentSurface with the SAME surfaceId but missing the target anchor
            // (simulates a case where the manifest says the block exists but live doc doesn't)
            const tamperedSurface = {
                ...surface,
                anchors: surface.anchors.filter((a) => a.block_id !== "P_0001"),
            };

            const result = validateCommentPlanIntent({
                intent: { block_id: "P_0001", comment: "Test comment" },
                manifest: manifest as any,
                currentSurface: tamperedSurface as any,
            });

            expect(result.ok).toBe(false);
            if (!result.ok) {
                expect(result.failureCode).toBe("anchor_stale_requires_document_refresh");
            }
        });

        it("fails with anchor_identity_mismatch when native_para_id differs", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const manifest = buildTestManifest(surface);

            // Mutate the currentSurface anchor to have a different native_para_id
            const tamperedSurface = {
                ...surface,
                anchors: surface.anchors.map((a, i) =>
                    i === 0 ? { ...a, native_para_id: "FAKE1234" } : a
                ),
            };

            const result = validateCommentPlanIntent({
                intent: { block_id: "P_0001", comment: "Test comment" },
                manifest: manifest as any,
                currentSurface: tamperedSurface as any,
            });

            expect(result.ok).toBe(false);
            if (!result.ok) {
                expect(result.failureCode).toBe("anchor_identity_mismatch");
            }
        });

        it("fails with ANCHOR_NOT_ELIGIBLE for a navigation anchor", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const ineligibleSurface = {
                ...surface,
                anchors: surface.anchors.map((anchor, index) =>
                    index === 0
                        ? {
                            ...anchor,
                            role: "navigation" as const,
                            anchor_eligible: false,
                            anchor_rejection_reason: "table_of_contents" as const,
                            navigation_score: 1,
                        }
                        : anchor,
                ),
                navigationRegions: [
                    {
                        startBlockId: "P_0001",
                        endBlockId: "P_0001",
                        startIndex: 0,
                        endIndex: 0,
                        reason: "table_of_contents" as const,
                    },
                ],
            };
            const manifest = buildTestManifest(ineligibleSurface);

            const result = validateCommentPlanIntent({
                intent: {
                    block_id: "P_0001",
                    comment: "Test comment",
                    target_text: "First body paragraph.",
                },
                manifest: manifest as any,
                currentSurface: ineligibleSurface,
            });

            expect(result.ok).toBe(false);
            if (!result.ok) {
                expect(result.failureCode).toBe("ANCHOR_NOT_ELIGIBLE");
                expect(result.excludedNavigationRegion).toMatchObject({
                    start_block_id: "P_0001",
                    end_block_id: "P_0001",
                });
                expect(result.candidates?.every((candidate) => candidate.block_id !== "P_0001")).toBe(true);
            }
        });

        it("rejects a tracked edit planned on a navigation block", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const ineligibleSurface = {
                ...surface,
                anchors: surface.anchors.map((anchor, index) =>
                    index === 0
                        ? {
                            ...anchor,
                            role: "navigation" as const,
                            anchor_eligible: false,
                            anchor_rejection_reason: "table_of_contents" as const,
                            navigation_label: "First body paragraph",
                        }
                        : anchor,
                ),
                navigationRegions: [
                    {
                        startBlockId: "P_0001",
                        endBlockId: "P_0001",
                        startIndex: 0,
                        endIndex: 0,
                        reason: "table_of_contents" as const,
                    },
                ],
            };

            const result = validatePlannedFinding({
                intent: completeIntent({
                    target_text: undefined,
                    type: "REWRITE_PARAGRAPH",
                    new_text: "Replacement wording.",
                }),
                manifest: buildTestManifest(ineligibleSurface) as any,
                currentSurface: ineligibleSurface,
                allowCommentFallback: true,
            });

            expect(result.ok).toBe(false);
            if (!result.ok) {
                expect(result.failureCode).toBe("ANCHOR_NOT_ELIGIBLE");
            }
        });
    });

    describe("Phase 3: supporting evidence and deterministic redirect", () => {
        it("requires meaningful target_text for non-MISSING findings", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const result = validateFindingTargetEvidence({
                intent: completeIntent({ target_text: undefined }),
                surface,
                anchor: surface.anchors[0],
            });

            expect(result).toMatchObject({
                ok: false,
                failureCode: "schema_missing_target_text",
            });
        });

        it("rejects target_text that is not in the selected block", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const result = validateFindingTargetEvidence({
                intent: completeIntent({
                    target_text: "Supplier shall deliver within thirty days.",
                }),
                surface,
                anchor: surface.anchors[0],
            });

            expect(result).toMatchObject({
                ok: false,
                failureCode: "target_text_not_in_block",
            });
        });

        it("allows MISSING findings without target_text", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const result = validateFindingTargetEvidence({
                intent: completeIntent({
                    status: "MISSING",
                    target_text: undefined,
                }),
                surface,
                anchor: surface.anchors[0],
            });

            expect(result).toEqual({ ok: true });
        });

        it("rejects heading-only evidence when substantive text follows", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const headingSurface = {
                ...surface,
                blocks: surface.blocks.map((block, index) =>
                    index === 0
                        ? { ...block, text: "Section 6 – Delivery", length: 20 }
                        : index === 1
                            ? {
                                ...block,
                                text:
                                    "The Supplier shall deliver all materials within thirty days after receiving the approved purchase order and all required drawings.",
                                length: 124,
                            }
                            : block,
                ),
                anchors: surface.anchors.map((anchor, index) =>
                    index === 0
                        ? {
                            ...anchor,
                            style_id: "Heading1",
                            style_name: "Heading 1",
                            text_preview: "Section 6 – Delivery",
                        }
                        : anchor,
                ),
            };
            const result = validateFindingTargetEvidence({
                intent: completeIntent({
                    target_text: "Section 6 – Delivery",
                }),
                surface: headingSurface,
                anchor: headingSurface.anchors[0],
            });

            expect(result).toMatchObject({
                ok: false,
                failureCode: "target_text_heading_only",
            });
        });

        it("auto-redirects only a unique eligible title and quote match", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const clauseText =
                "Section 6 Delivery Supplier shall deliver the materials within thirty days after receiving the approved purchase order.";
            const redirectSurface = {
                ...surface,
                blocks: surface.blocks.map((block, index) =>
                    index === 0
                        ? { ...block, text: "Section 6 Delivery 12" }
                        : index === 1
                            ? { ...block, text: clauseText }
                            : block,
                ),
                anchors: surface.anchors.map((anchor, index) =>
                    index === 0
                        ? {
                            ...anchor,
                            role: "navigation" as const,
                            anchor_eligible: false,
                            anchor_rejection_reason: "manual_index" as const,
                            navigation_label: "Section 6 Delivery",
                            text_preview: "Section 6 Delivery 12",
                        }
                        : index === 1
                            ? { ...anchor, text_preview: clauseText }
                            : anchor,
                ),
                navigationRegions: [
                    {
                        startBlockId: "P_0001",
                        endBlockId: "P_0001",
                        startIndex: 0,
                        endIndex: 0,
                        reason: "manual_index" as const,
                    },
                ],
            };
            const result = validatePlannedFinding({
                intent: completeIntent({
                    block_id: "P_0001",
                    target_text:
                        "Supplier shall deliver the materials within thirty days",
                }),
                manifest: buildTestManifest(redirectSurface) as any,
                currentSurface: redirectSurface,
                allowCommentFallback: true,
            });

            expect(result.ok).toBe(true);
            if (result.ok) {
                expect(result.item.block_id).toBe("P_0002");
                expect(result.item.anchorRedirectedFrom).toBe("P_0001");
                expect(result.item.anchorRedirectedTo).toBe("P_0002");
            }
        });

        it("does not auto-redirect when two eligible blocks match", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const clauseText =
                "Section 6 Delivery Supplier shall deliver the materials within thirty days after receiving the approved purchase order.";
            const ambiguousSurface = {
                ...surface,
                blocks: surface.blocks.map((block, index) =>
                    index === 0
                        ? { ...block, text: "Section 6 Delivery 12" }
                        : index === 1 || index === 2
                            ? { ...block, text: clauseText }
                            : block,
                ),
                anchors: surface.anchors.map((anchor, index) =>
                    index === 0
                        ? {
                            ...anchor,
                            role: "navigation" as const,
                            anchor_eligible: false,
                            anchor_rejection_reason: "manual_index" as const,
                            navigation_label: "Section 6 Delivery",
                            text_preview: "Section 6 Delivery 12",
                        }
                        : index === 1 || index === 2
                            ? { ...anchor, text_preview: clauseText }
                            : anchor,
                ),
                navigationRegions: [
                    {
                        startBlockId: "P_0001",
                        endBlockId: "P_0001",
                        startIndex: 0,
                        endIndex: 0,
                        reason: "manual_index" as const,
                    },
                ],
            };
            const result = validatePlannedFinding({
                intent: completeIntent({
                    block_id: "P_0001",
                    target_text:
                        "Supplier shall deliver the materials within thirty days",
                }),
                manifest: buildTestManifest(ambiguousSurface) as any,
                currentSurface: ambiguousSurface,
                allowCommentFallback: true,
            });

            expect(result.ok).toBe(false);
            if (!result.ok) {
                expect(result.failureCode).toBe("ANCHOR_NOT_ELIGIBLE");
            }
        });
    });

    describe("Phase 5: Candidate context for corrections", () => {
        it("returns nearby anchors around the target block_id", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);

            const candidates = buildCandidateContext({
                surface,
                targetBlockId: "P_0002",
                windowSize: 2,
            });

            // Should include P_0001, P_0002, P_0003 (window of 2 around index 1)
            expect(candidates.length).toBeGreaterThan(0);
            expect(candidates.some((c) => c.block_id === "P_0002")).toBe(true);
        });

        it("never returns navigation anchors as correction context", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const ineligibleSurface = {
                ...surface,
                anchors: surface.anchors.map((anchor, index) =>
                    index === 0
                        ? {
                            ...anchor,
                            role: "navigation" as const,
                            anchor_eligible: false,
                            anchor_rejection_reason: "table_of_contents" as const,
                        }
                        : anchor,
                ),
            };

            const candidates = buildCandidateContext({
                surface: ineligibleSurface,
                targetBlockId: "P_0001",
                windowSize: 3,
            });

            expect(candidates.some((candidate) => candidate.block_id === "P_0001")).toBe(false);
        });
    });

    describe("New tools exist in TOOLS array", () => {
        it("includes plan_comments_on_document", () => {
            const names = TOOLS.map((t: any) => t.function.name);
            expect(names).toContain("plan_comments_on_document");
        });

        it("includes correct_comment_anchors", () => {
            const names = TOOLS.map((t: any) => t.function.name);
            expect(names).toContain("correct_comment_anchors");
        });

        it("still includes comment_on_document for backward compatibility", () => {
            const names = TOOLS.map((t: any) => t.function.name);
            expect(names).toContain("comment_on_document");
        });
    });

    describe("Writer-boundary defense", () => {
        it("rejects ineligible anchors before the Python writer", async () => {
            const bytes = await buildTestDocx();
            const surface = await buildDocxEditSurface(bytes);
            const anchor = {
                ...surface.anchors[0],
                role: "navigation" as const,
                anchor_eligible: false,
                anchor_rejection_reason: "table_of_contents" as const,
            };

            const failures = buildWriterAnchorEligibilityFailures([
                {
                    id: "comment-1",
                    args: {
                        block_id: anchor.block_id,
                        comment_key: "delivery-trigger",
                        type: "COMMENT",
                    },
                    anchor,
                },
            ]);

            expect(failures).toHaveLength(1);
            expect(failures[0]).toMatchObject({
                failure_code: "ANCHOR_NOT_ELIGIBLE",
                model_block_id: "P_0001",
                anchor_rejection_reason: "table_of_contents",
            });
        });
    });

    describe("Phase 9-10: Post-write verification and manifest refresh", () => {
        it("passes verification when body text is unchanged and comments exist in xml", async () => {
            const original = await buildTestDocx();
            const commented = await injectCommentsXml(original, 2);

            const verification = await verifyCommentBatchPostWrite({
                originalBytes: original,
                commentedBytes: commented,
                expectedAppliedCount: 2,
                appliedReports: [
                    { status: "applied", model_block_id: "P_0001" },
                    { status: "applied", model_block_id: "P_0002" },
                ],
            });

            expect(verification.ok).toBe(true);
            expect(verification.body_text_unchanged).toBe(true);
            expect(verification.comments_in_xml).toBe(2);
            expect(verification.missing_from_xml).toBe(0);
            expect(verification.original_block_count).toBe(verification.commented_block_count);
        });

        it("fails verification when body text changed after write", async () => {
            const original = await buildTestDocx();
            const modified = await buildModifiedDocx();
            const commented = await injectCommentsXml(modified, 1);

            const verification = await verifyCommentBatchPostWrite({
                originalBytes: original,
                commentedBytes: commented,
                expectedAppliedCount: 1,
                appliedReports: [{ status: "applied", model_block_id: "P_0001" }],
            });

            expect(verification.ok).toBe(false);
            expect(verification.body_text_unchanged).toBe(false);
        });

        it("detects missing comments in comments.xml", async () => {
            const original = await buildTestDocx();
            // Inject fewer comments than expected
            const commented = await injectCommentsXml(original, 1);

            const verification = await verifyCommentBatchPostWrite({
                originalBytes: original,
                commentedBytes: commented,
                expectedAppliedCount: 3,
                appliedReports: [
                    { status: "applied", model_block_id: "P_0001" },
                    { status: "applied", model_block_id: "P_0002" },
                    { status: "applied", model_block_id: "P_0003" },
                ],
            });

            expect(verification.ok).toBe(false);
            expect(verification.missing_from_xml).toBeGreaterThan(0);
        });

        it("counts applied comments correctly in summary", async () => {
            const original = await buildTestDocx();
            const commented = await injectCommentsXml(original, 2);

            const verification = await verifyCommentBatchPostWrite({
                originalBytes: original,
                commentedBytes: commented,
                expectedAppliedCount: 2,
                appliedReports: [
                    { status: "applied", model_block_id: "P_0001" },
                    { status: "applied", model_block_id: "P_0002" },
                    { status: "not_applied", model_block_id: "P_0003", failure_code: "anchor_not_found" },
                ],
            });

            expect(verification.ok).toBe(true);
            expect(verification.expected_applied).toBe(2);
        });
    });

    describe("Acceptance criteria: surface stability", () => {
        it("preserves paragraph count after comment-only write", async () => {
            const original = await buildTestDocx();
            const commented = await injectCommentsXml(original, 1);

            const verification = await verifyCommentBatchPostWrite({
                originalBytes: original,
                commentedBytes: commented,
                expectedAppliedCount: 1,
                appliedReports: [{ status: "applied", model_block_id: "P_0001" }],
            });

            expect(verification.original_block_count).toBe(4);
            expect(verification.commented_block_count).toBe(4);
        });
    });

    describe("PASS filtering and reasoning", () => {
        it("detects PASS by status", () => {
            expect(
                isPassItem({ block_id: "P_0001", comment: "ok", status: "PASS" })
            ).toBe(true);
            expect(
                isPassItem({ block_id: "P_0001", comment: "ok", status: "pass" })
            ).toBe(true);
            expect(
                isPassItem({ block_id: "P_0001", comment: "ok", status: "FAIL" })
            ).toBe(false);
        });

        it("detects PASS by comment prefix when status is missing", () => {
            expect(
                isPassItem({ block_id: "P_0001", comment: "[PASS] Looks fine." })
            ).toBe(true);
            expect(
                isPassItem({ block_id: "P_0001", comment: "[pass] Looks fine." })
            ).toBe(true);
            expect(
                isPassItem({ block_id: "P_0001", comment: "[FAIL] Issue." })
            ).toBe(false);
        });

        it("builds ignored_pass report shape", () => {
            const report = buildIgnoredPassReport(
                { block_id: "P_0001", comment: "[PASS] ok", comment_key: "ok-1", reasoning: { clause_section: "c1", violated_standard: "v1", zamil_exposure: "z1" } },
                3
            );
            expect(report.status).toBe("ignored_pass");
            expect(report.ignored_reason).toBe("pass_status");
            expect(report.comment_key).toBe("ok-1");
            expect(report.reasoning).toEqual({ clause_section: "c1", violated_standard: "v1", zamil_exposure: "z1" });
            expect(report.failure_code).toBeNull();
        });

        it("excludes ignored_pass from apply summary failed count", () => {
            const summary = buildApplySummary([
                { status: "applied", id: "a" },
                { status: "ignored_pass", id: "b" },
                { status: "not_applied", id: "c", failure_code: "anchor_not_found" },
            ])!;
            expect(summary.total).toBe(2);
            expect(summary.applied).toBe(1);
            expect(summary.failed).toBe(1);
            expect(summary.failures.length).toBe(1);
            expect(summary.failures[0].id).toBe("c");
        });

        it("counts ignored_pass as zero actionable denominator impact", () => {
            const summary = buildApplySummary([
                { status: "ignored_pass", id: "b" },
                { status: "ignored_pass", id: "c" },
            ])!;
            expect(summary.total).toBe(0);
            expect(summary.applied).toBe(0);
            expect(summary.failed).toBe(0);
            expect(summary.failures.length).toBe(0);
        });
    });
});