from pathlib import Path
import pytest
from omicron.ssg.output import ContentError, Directory
from omicron.ssg.site import ConfigError, Site


@pytest.mark.parametrize(
    "value, expected_origin, expected_path",
    [
        (None, "", Path("/")),
        ("http://example.com/blog", "http://example.com", Path("/blog")),
        ("http://example.com", "http://example.com", Path("/")),
        ("//example.com/blog", "//example.com", Path("/blog")),
        ("/blog", "", Path("/blog")),
    ],
)
def test_parse_base_url(value, expected_origin, expected_path):
    origin, path = Site.parse_base_url(value)
    assert origin == expected_origin
    assert path == expected_path


def test_discover_raises_on_duplicate_destination(make_site):
    site = make_site("duplicate_slug")
    with pytest.raises(ContentError):
        site.discover()


def test_discover_creates_content_directories(make_site):
    site = make_site("main")
    site.discover()

    assert isinstance(site.by_path[Path("posts")], Directory)
    assert isinstance(site.by_path[Path("posts/first-post")], Directory)


def test_read_config_errors(site_dir):
    path = site_dir("thin_site")
    config_path = path / "config.yml"

    config_path.unlink()
    with pytest.raises(ConfigError, match="config file missing"):
        Site(path)

    config_path.write_text("- a\n- b\n")
    with pytest.raises(ConfigError, match="YAML mapping with string keys"):
        Site(path)

    config_path.write_text("123: value\n")
    with pytest.raises(ConfigError, match="YAML mapping with string keys"):
        Site(path)

    config_path.write_text("template: plain\n")
    with pytest.raises(ConfigError, match="name value missing"):
        Site(path)

    config_path.write_text("name: test\n")
    with pytest.raises(ConfigError, match="template value missing"):
        Site(path)


def test_build_raises_for_relative_base_url(site_dir):
    path = site_dir("thin_site")
    (path / "config.yml").write_text("name: test\ntemplate: plain\nbase_url: blog\n")

    site = Site(path)
    with pytest.raises(ConfigError, match="absolute path"):
        site.build()


def test_discover_skips_drafts_by_default(make_site):
    site = make_site("draft_content")
    site.discover()

    assert len(site.content) == 1
    assert site.content[0].title == "Published"


def test_discover_includes_drafts_when_enabled(make_site):
    site = make_site("draft_content", drafts=True)
    site.discover()

    assert len(site.content) == 2


def test_clean_removes_output_directory(make_site):
    site = make_site("main")
    site.build()
    assert site.output_path.exists()

    site.clean()
    assert not site.output_path.exists()

    site.clean()
    assert not site.output_path.exists()


def test_resolve_template_path_raises_for_missing_template():
    with pytest.raises(ConfigError, match="not found"):
        Site.resolve_template_path("does-not-exist")