import datetime
import importlib.util
from pathlib import Path

from src.config import Config, FetchConfig
from src.models import GiteaRepository, GiteaUser


def load_mirror_module():
    module_path = Path(__file__).parent.parent / "gitea-mirror.py"
    spec = importlib.util.spec_from_file_location("gitea_mirror", module_path)
    module = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(module)
    return module


def make_repo() -> GiteaRepository:
    return GiteaRepository(
        ssh_url="ssh://git@example.com/alex/repo.git",
        clone_url="https://example.com/alex/repo.git",
        name="repo",
        id=42,
        updated_at=datetime.datetime.now(),
        owner=GiteaUser(
            id=23,
            login="alex",
            email="alex@example.com",
        ),
    )


def make_config(tmp_path, fetch: FetchConfig) -> Config:
    return Config(
        api_token="api-token",
        endpoint="https://example.com",
        repository_format="{owner}/{name}",
        out_dir=str(tmp_path),
        fetch=fetch,
    )


def test_process_repo_clones_with_ssh_url_and_key_env(monkeypatch, tmp_path):
    mirror = load_mirror_module()
    calls = []

    def fake_git_clone(repository_url, repository, env):
        calls.append((repository_url, repository, env))
        return True

    monkeypatch.setattr(mirror, "git_clone", fake_git_clone)

    mirror.process_repo(
        config=make_config(tmp_path, FetchConfig(ssh_key="/tmp/test_key")),
        repo=make_repo(),
    )

    assert calls == [
        (
            "ssh://git@example.com/alex/repo.git",
            str(tmp_path / "alex" / "repo"),
            {
                "GIT_SSH_COMMAND": (
                    "ssh -i /tmp/test_key -o IdentitiesOnly=yes"
                ),
            },
        )
    ]


def test_process_repo_clones_with_https_url_and_auth_env(monkeypatch, tmp_path):
    mirror = load_mirror_module()
    calls = []

    def fake_git_clone(repository_url, repository, env):
        calls.append((repository_url, repository, env))
        return True

    monkeypatch.setattr(mirror, "git_clone", fake_git_clone)

    mirror.process_repo(
        config=make_config(tmp_path, FetchConfig(user="alex", token="secret")),
        repo=make_repo(),
    )

    repository_url, repository, env = calls[0]
    assert repository_url == "https://example.com/alex/repo.git"
    assert repository == str(tmp_path / "alex" / "repo")
    assert env["GIT_CONFIG_COUNT"] == "1"
    assert env["GIT_CONFIG_KEY_0"] == "http.extraHeader"
    assert env["GIT_CONFIG_VALUE_0"].startswith("Authorization: Basic ")


def test_process_repo_pulls_existing_repo_with_fetch_env(monkeypatch, tmp_path):
    mirror = load_mirror_module()
    calls = []
    repo_path = tmp_path / "alex" / "repo" / ".git"
    repo_path.mkdir(parents=True)

    def fake_git_pull(repository, env):
        calls.append((repository, env))
        return True

    monkeypatch.setattr(mirror, "git_pull", fake_git_pull)

    mirror.process_repo(
        config=make_config(tmp_path, FetchConfig(ssh_key="/tmp/test_key")),
        repo=make_repo(),
    )

    assert calls == [
        (
            str(tmp_path / "alex" / "repo"),
            {
                "GIT_SSH_COMMAND": (
                    "ssh -i /tmp/test_key -o IdentitiesOnly=yes"
                ),
            },
        )
    ]