"""Tests para scan_directory."""

import os
import sys
import tempfile
from pathlib import Path

# Asegurar que los modulos del mismo directorio y tipos se puedan importar
_HERE = Path(__file__).parent
_TYPES_INFRA = Path(__file__).parent.parent.parent / "types" / "infra"
for _p in [str(_HERE), str(_TYPES_INFRA)]:
    if _p not in sys.path:
        sys.path.insert(0, _p)

from scan_directory import scan_directory  # noqa: E402


def _make_tree(base: Path, structure: dict) -> None:
    """Crea un arbol de archivos/dirs a partir de un dict {rel_path: content}."""
    for rel, content in structure.items():
        path = base / rel
        path.parent.mkdir(parents=True, exist_ok=True)
        if content is None:
            path.mkdir(parents=True, exist_ok=True)
        else:
            path.write_text(content, encoding="utf-8")


# ---------------------------------------------------------------------------
# Test: directorio con mezcla de archivos
# ---------------------------------------------------------------------------
def test_directorio_con_mezcla_de_archivos():
    with tempfile.TemporaryDirectory() as tmp:
        root = Path(tmp)
        _make_tree(root, {
            "report.pdf": "pdf content",
            "notes.md": "# Notes",
            "image.png": "png content",
            "data.csv": "a,b,c",
        })

        result = scan_directory(str(root), supported_extensions={".pdf", ".md"})

        rel_paths = [f.rel_path for f in result.processable]
        assert "notes.md" in rel_paths, f"notes.md no en processable: {rel_paths}"
        assert "report.pdf" in rel_paths, f"report.pdf no en processable: {rel_paths}"

        unsup_paths = [f.rel_path for f in result.unsupported]
        assert "image.png" in unsup_paths, f"image.png no en unsupported: {unsup_paths}"
        assert "data.csv" in unsup_paths, f"data.csv no en unsupported: {unsup_paths}"

        assert all(f.classification == "processable" for f in result.processable)
        assert all(f.classification == "unsupported" for f in result.unsupported)


# ---------------------------------------------------------------------------
# Test: directorio con dot files
# ---------------------------------------------------------------------------
def test_directorio_con_dot_files():
    with tempfile.TemporaryDirectory() as tmp:
        root = Path(tmp)
        _make_tree(root, {
            "visible.txt": "content",
            ".hidden": "hidden content",
            ".env": "SECRET=x",
        })

        result = scan_directory(str(root))

        all_paths = [f.rel_path for f in result.processable + result.unsupported]
        assert ".hidden" not in all_paths, f".hidden no deberia aparecer: {all_paths}"
        assert ".env" not in all_paths, f".env no deberia aparecer: {all_paths}"
        assert "visible.txt" in all_paths, f"visible.txt deberia aparecer: {all_paths}"

        skipped_paths = " ".join(result.skipped)
        assert ".hidden" in skipped_paths or ".env" in skipped_paths


# ---------------------------------------------------------------------------
# Test: directorio con subdirs ignorados
# ---------------------------------------------------------------------------
def test_directorio_con_subdirs_ignorados():
    with tempfile.TemporaryDirectory() as tmp:
        root = Path(tmp)
        _make_tree(root, {
            "main.py": "print('hello')",
            "__pycache__/module.pyc": "bytecode",
            "node_modules/lib/index.js": "// js",
            ".git/config": "[core]",
            "src/utils.py": "def f(): pass",
        })

        result = scan_directory(str(root))

        all_rels = [f.rel_path for f in result.processable + result.unsupported]

        # Archivos dentro de dirs ignorados no deben aparecer
        assert not any("__pycache__" in r for r in all_rels), \
            f"__pycache__ no deberia estar en resultados: {all_rels}"
        assert not any("node_modules" in r for r in all_rels), \
            f"node_modules no deberia estar en resultados: {all_rels}"
        assert not any(".git" in r for r in all_rels), \
            f".git no deberia estar en resultados: {all_rels}"

        # Archivos fuera de dirs ignorados si deben aparecer
        assert "main.py" in all_rels, f"main.py deberia estar: {all_rels}"
        assert "src/utils.py" in all_rels, f"src/utils.py deberia estar: {all_rels}"


# ---------------------------------------------------------------------------
# Test: filtros include/exclude
# ---------------------------------------------------------------------------
def test_filtros_include_exclude():
    with tempfile.TemporaryDirectory() as tmp:
        root = Path(tmp)
        _make_tree(root, {
            "report.pdf": "content",
            "notes.md": "notes",
            "image.png": "image",
            "drafts/draft.md": "draft",
            "temp.tmp": "tmp",
        })

        # Solo incluir .pdf y .md
        result = scan_directory(str(root), include="*.pdf,*.md")
        all_rels = [f.rel_path for f in result.processable + result.unsupported]
        assert "image.png" not in all_rels, f"image.png no deberia incluirse: {all_rels}"
        assert "temp.tmp" not in all_rels, f"temp.tmp no deberia incluirse: {all_rels}"
        assert "report.pdf" in all_rels
        assert "notes.md" in all_rels

        # Excluir path prefix drafts/ y extension .tmp
        result2 = scan_directory(str(root), exclude="drafts/,*.tmp")
        all_rels2 = [f.rel_path for f in result2.processable + result2.unsupported]
        assert "drafts/draft.md" not in all_rels2, \
            f"drafts/draft.md no deberia incluirse: {all_rels2}"
        assert "temp.tmp" not in all_rels2, f"temp.tmp no deberia incluirse: {all_rels2}"
        assert "report.pdf" in all_rels2


# ---------------------------------------------------------------------------
# Test: modo strict
# ---------------------------------------------------------------------------
def test_modo_strict():
    with tempfile.TemporaryDirectory() as tmp:
        root = Path(tmp)
        _make_tree(root, {
            "doc.pdf": "content",
            "image.png": "image",
        })

        # strict=False no lanza error aunque haya unsupported
        result = scan_directory(str(root), supported_extensions={".pdf"}, strict=False)
        assert len(result.unsupported) == 1

        # strict=True lanza ValueError
        raised = False
        try:
            scan_directory(str(root), supported_extensions={".pdf"}, strict=True)
        except ValueError:
            raised = True
        assert raised, "strict=True deberia lanzar ValueError cuando hay unsupported"


if __name__ == "__main__":
    test_directorio_con_mezcla_de_archivos()
    print("PASS: directorio con mezcla de archivos")

    test_directorio_con_dot_files()
    print("PASS: directorio con dot files")

    test_directorio_con_subdirs_ignorados()
    print("PASS: directorio con subdirs ignorados")

    test_filtros_include_exclude()
    print("PASS: filtros include/exclude")

    test_modo_strict()
    print("PASS: modo strict")

    print("\nAll tests passed.")