from pathlib import Path

from scripts.timmy_config_pr_backlog_audit import extract_issue_refs, summarize_backlog


def test_extract_issue_refs_from_title_body_and_branch() -> None:
    text = "feat: crisis response — manipulation & edge cases 500 pairs (#598)"
    body = "Refs #1471 and closes #598"
    head = "fix/598-crisis-manipulation"

    refs = extract_issue_refs(text, body, head)

    assert 598 in refs
    assert 1471 in refs


def test_summarize_backlog_finds_duplicates_missing_reviewers_and_stale_prs() -> None:
    backlog = [
        {
            "number": 765,
            "title": "feat: crisis response (#598)",
            "body": "Closes #598",
            "head": "fix/598-crisis-manipulation",
            "mergeable": True,
            "review_count": 0,
            "requested_reviewers": 0,
            "updated_at": "2026-04-01T00:00:00Z",
        },
        {
            "number": 766,
            "title": "feat: edge cases (#598)",
            "body": "Closes #598",
            "head": "fix/598",
            "mergeable": True,
            "review_count": 1,
            "requested_reviewers": 0,
            "updated_at": "2026-04-15T00:00:00Z",
        },
        {
            "number": 777,
            "title": "feat: token budget tracker (#622)",
            "body": "Closes #622",
            "head": "fix/622-token-tracker",
            "mergeable": False,
            "review_count": 0,
            "requested_reviewers": 0,
            "updated_at": "2026-04-15T00:00:00Z",
        },
    ]

    summary = summarize_backlog(backlog, now_iso="2026-04-16T00:00:00Z")

    assert summary["total_open_prs"] == 3
    assert summary["mergeable_count"] == 2
    assert summary["missing_reviewer_count"] == 2
    assert summary["stale_count"] == 1
    assert summary["duplicate_issue_groups"][0]["issue_refs"] == [598]
    assert {pr["number"] for pr in summary["duplicate_issue_groups"][0]["prs"]} == {765, 766}


def test_timmy_config_pr_backlog_report_exists_with_required_sections() -> None:
    report = Path("reports/2026-04-16-timmy-config-pr-backlog-audit.md")
    text = report.read_text(encoding="utf-8")

    required = [
        "# Timmy-config PR Backlog Audit — the-nexus #1471",
        "## Source Snapshot",
        "## Live Summary",
        "## Issue Body Drift",
        "## Duplicate Issue Groups",
        "## Reviewer Coverage",
        "## Mergeable Snapshot",
        "## Stale PRs",
        "## Recommended Next Actions",
    ]
    missing = [item for item in required if item not in text]
    assert not missing, missing