from __future__ import annotations

import sys
from pathlib import Path
from typing import Any

import pytest

from wapdown.cli import convert
from wapdown.config import DeckConfig
from wapdown.conversion.core import strip_frontmatter, read_lines
from wapdown.renderers.wml.renderer import DeckOutput


PROJECT_ROOT = Path(__file__).resolve().parent.parent
EXAMPLES = PROJECT_ROOT / "examples"
GOLDEN = Path(__file__).resolve().parent / "golden"


def render_source(text: str, **options: Any) -> str:
    """Render Markdown given as a string, returning the single deck's markup."""
    lines = text.splitlines(keepends=True)
    frontmatter, body = strip_frontmatter(lines)
    config = DeckConfig.resolve(frontmatter, options)
    return convert(body, config=config, base_path=EXAMPLES).text


def render_file(path: Path, *, renderer_name: str = "wml", **options: Any):
    lines = read_lines(path)
    frontmatter, body = strip_frontmatter(lines)
    config = DeckConfig.resolve(frontmatter, options)
    return convert(body, config=config, base_path=path.parent, renderer_name=renderer_name)


@pytest.fixture
def render():
    return render_source


def render_xhtmlmp_source(text: str, **options: Any) -> str:
    """Like `render_source`, but through the XHTML-MP renderer."""
    lines = text.splitlines(keepends=True)
    frontmatter, body = strip_frontmatter(lines)
    config = DeckConfig.resolve(frontmatter, options)
    return convert(body, config=config, base_path=EXAMPLES, renderer_name="xhtmlmp")


@pytest.fixture
def render_xhtmlmp():
    return render_xhtmlmp_source


@pytest.fixture
def render_output():
    """Like `render`, but exposes every output file (deck-per-card mode)."""

    def _render(text: str, **options: Any) -> DeckOutput:
        lines = text.splitlines(keepends=True)
        frontmatter, body = strip_frontmatter(lines)
        config = DeckConfig.resolve(frontmatter, options)
        return convert(body, config=config, base_path=EXAMPLES)

    return _render


@pytest.fixture(scope="session")
def example_decks() -> dict[str, str]:
    """Every examples/*.md rendered with its own frontmatter settings."""
    return {
        path.name: render_file(path).documents[0].text
        for path in sorted(EXAMPLES.glob("*.md"))
    }