"""Integration test: ``import_docs`` git-source resolution (phase 28, task 03).

Drives ``scripts.import_docs`` end to end with a fake ``clone_or_pull`` (no
real git, no network) and a recording fake ``import_sources`` (no real
DB), covering:

- ``BOR_GIT_SOURCES`` set → each URL is cloned/pulled into
  ``BOR_SOURCES_DIR/<repo-name>/`` and exactly those dirs are imported.
- ``--source`` still wins over ``BOR_GIT_SOURCES`` (no git at all).
- No git sources + no ``--source`` → the legacy ``DEFAULT_SOURCES``.
- A failing git sync → exit code 1, an error naming the failing repo on
  stderr, and **zero** import attempts.
"""
from __future__ import annotations

from pathlib import Path

import pytest

from app.config import Settings
from app.rag.importer import ImportSummary
from scripts import import_docs
from scripts.git_sync import GitSyncError


def _settings(git_sources: str = "", sources_dir: str = "~/bor-sources") -> Settings:
    """Fresh settings (no .env file); explicit kwargs beat any env leaks."""
    return Settings(_env_file=None, git_sources=git_sources, sources_dir=sources_dir)  # pyright: ignore[reportCallIssue]


class FakeImportSources:
    """Records every ``import_sources`` call instead of touching a DB."""

    def __init__(self) -> None:
        self.calls: list[dict] = []

    async def __call__(
        self,
        sources: list[Path],
        llm: object,
        *,
        prune: bool = False,
        limit: int | None = None,
    ) -> ImportSummary:
        self.calls.append({"sources": list(sources), "prune": prune, "limit": limit})
        return ImportSummary(files=1, added=1)


def _fake_clone_factory() -> tuple[list[tuple[str, Path]], object]:
    """A ``clone_or_pull`` that materialises a checkout with one .md file."""
    calls: list[tuple[str, Path]] = []

    def fake_clone_or_pull(url: str, dest: Path | str) -> Path:
        dest = Path(dest)
        dest.mkdir(parents=True, exist_ok=True)
        (dest / "notes.md").write_text(f"# {dest.name}\ncontent for the KB\n", encoding="utf-8")
        calls.append((url, dest))
        return dest

    return calls, fake_clone_or_pull


# --- repo_name -------------------------------------------------------------


@pytest.mark.parametrize(
    ("url", "name"),
    [
        ("https://github.com/user/homelab.git", "homelab"),
        ("https://github.com/user/homelab", "homelab"),
        ("git@github.com:user/homelab.git", "homelab"),
        ("git@github.com:homelab.git", "homelab"),
        ("ssh://git@host:2222/group/deployments.git", "deployments"),
        ("https://git.reeseapps.com:8443/proj/notes", "notes"),
    ],
)
def test_repo_name(url: str, name: str) -> None:
    assert import_docs.repo_name(url) == name


def test_repo_name_slug_fallback() -> None:
    # No usable basename (path ends in the .git suffix itself) → slug.
    assert import_docs.repo_name("https://host/.git") == "https-host"


# --- _resolve_sources ------------------------------------------------------


def test_resolve_sources_git_urls_cloned_into_sources_dir(
    monkeypatch: pytest.MonkeyPatch, tmp_path: Path
) -> None:
    calls, fake = _fake_clone_factory()
    monkeypatch.setattr(import_docs, "clone_or_pull", fake)
    settings = _settings(
        git_sources="https://host/a/homelab.git, git@host:user/deploy.git ,",
        sources_dir=str(tmp_path / "bor"),
    )

    sources = import_docs._resolve_sources(None, settings)

    assert sources == [tmp_path / "bor" / "homelab", tmp_path / "bor" / "deploy"]
    assert calls == [
        ("https://host/a/homelab.git", tmp_path / "bor" / "homelab"),
        ("git@host:user/deploy.git", tmp_path / "bor" / "deploy"),
    ]


def test_resolve_sources_cli_source_wins(
    monkeypatch: pytest.MonkeyPatch, tmp_path: Path
) -> None:
    calls, fake = _fake_clone_factory()
    monkeypatch.setattr(import_docs, "clone_or_pull", fake)
    settings = _settings(git_sources="https://host/a/repo.git")
    manual = tmp_path / "Manual"

    sources = import_docs._resolve_sources([manual], settings)

    assert sources == [manual]
    assert calls == []  # git is never touched when --source is given


def test_resolve_sources_defaults_when_nothing_configured() -> None:
    sources = import_docs._resolve_sources(None, _settings())
    assert sources == [p.expanduser() for p in import_docs.DEFAULT_SOURCES]


# --- main() ----------------------------------------------------------------


def test_main_git_sources_clone_then_import(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: Path,
    capsys: pytest.CaptureFixture[str],
) -> None:
    settings = _settings(
        git_sources="https://host/a/homelab.git,https://host/a/deploy.git",
        sources_dir=str(tmp_path / "bor"),
    )
    monkeypatch.setattr(import_docs, "get_settings", lambda: settings)
    calls, fake = _fake_clone_factory()
    monkeypatch.setattr(import_docs, "clone_or_pull", fake)
    fake_import = FakeImportSources()
    monkeypatch.setattr(import_docs, "import_sources", fake_import)

    rc = import_docs.main([])

    assert rc == 0
    assert [(url, dest) for url, dest in calls] == [
        ("https://host/a/homelab.git", tmp_path / "bor" / "homelab"),
        ("https://host/a/deploy.git", tmp_path / "bor" / "deploy"),
    ]
    assert len(fake_import.calls) == 1
    # The cloned checkouts are exactly what gets imported.
    assert fake_import.calls[0]["sources"] == [
        tmp_path / "bor" / "homelab",
        tmp_path / "bor" / "deploy",
    ]
    for dest in (tmp_path / "bor" / "homelab", tmp_path / "bor" / "deploy"):
        assert (dest / "notes.md").is_file()
    # The final summary print reflects the import (added > 0).
    assert "added=1" in capsys.readouterr().out


def test_main_cli_source_still_imports_manual_dir(
    monkeypatch: pytest.MonkeyPatch, tmp_path: Path
) -> None:
    manual = tmp_path / "manual"
    manual.mkdir()
    (manual / "a.md").write_text("# A\nhi\n", encoding="utf-8")
    # BOR_GIT_SOURCES is set but must be ignored — --source always wins.
    settings = _settings(git_sources="https://host/a/repo.git")
    monkeypatch.setattr(import_docs, "get_settings", lambda: settings)
    calls, fake = _fake_clone_factory()
    monkeypatch.setattr(import_docs, "clone_or_pull", fake)
    fake_import = FakeImportSources()
    monkeypatch.setattr(import_docs, "import_sources", fake_import)

    rc = import_docs.main(["--source", str(manual)])

    assert rc == 0
    assert calls == []
    assert fake_import.calls[0]["sources"] == [manual]
    assert fake_import.calls[0]["prune"] is False


def test_main_git_failure_aborts_before_import(
    monkeypatch: pytest.MonkeyPatch, tmp_path: Path, capsys: pytest.CaptureFixture[str]
) -> None:
    settings = _settings(
        git_sources="https://host/a/bad.git",
        sources_dir=str(tmp_path / "bor"),
    )
    monkeypatch.setattr(import_docs, "get_settings", lambda: settings)

    def failing_clone(url: str, dest: Path | str) -> Path:
        raise GitSyncError(
            f"git clone --depth 1 {url} failed (exit 128): "
            "fatal: repository not found"
        )

    monkeypatch.setattr(import_docs, "clone_or_pull", failing_clone)
    fake_import = FakeImportSources()
    monkeypatch.setattr(import_docs, "import_sources", fake_import)

    rc = import_docs.main([])

    assert rc == 1
    err = capsys.readouterr().err
    assert "import_docs: git sync failed" in err
    assert "bad.git" in err  # the failing repo is named
    assert fake_import.calls == []  # no partial import
    assert not (tmp_path / "bor").exists()