#!/usr/bin/env python
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__doc__ = """
Contains tests for the scopy module.
"""

import os
import subprocess
import tempfile
import pytest

import pyseq
from conftest import get_installed_command
from pyseq.scopy import copy_sequence

scopy_bin = get_installed_command("scopy")


@pytest.fixture
def sample_sequence(tmp_path):
    """Create a dummy sequence: test.0001.exr through test.0003.exr"""
    filenames = []
    for i in range(1, 4):
        name = f"test.{i:04d}.exr"
        path = tmp_path / name
        path.write_text("dummy frame")
        filenames.append(str(path.name))  # just filenames
    seq = pyseq.get_sequences(filenames)[0]
    return tmp_path, seq


def test_copy_sequence_basic(sample_sequence):
    """Test the basic functionality of copy_sequence."""
    src_dir, seq = sample_sequence
    with tempfile.TemporaryDirectory() as destdir:
        copy_sequence(
            seq=seq,
            src_dir=str(src_dir),
            dest_dir=destdir,
            rename=None,
            renumber=None,
            pad=None,
            force=False,
            dryrun=False,
            verbose=False,
        )

        for i in range(1, 4):
            expected = os.path.join(destdir, f"test.{i:04d}.exr")
            assert os.path.exists(expected), f"Expected file not copied: {expected}"


def test_scopy_cli(sample_sequence):
    """Test the command line interface for scopy."""
    src_dir, _ = sample_sequence
    with tempfile.TemporaryDirectory() as destdir:
        pattern = os.path.join(str(src_dir), "test.%04d.exr")

        result = subprocess.run(
            [scopy_bin, pattern, destdir],
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
            text=True,
        )

        assert result.returncode == 0, result.stderr
        for i in range(1, 4):
            expected = os.path.join(destdir, f"test.{i:04d}.exr")
            assert os.path.exists(expected)


def test_scopy_cli_explicit_sequence_string_source_and_dest(tmp_path):
    """Serialized sequence strings should resolve before copying."""
    for i in range(1, 6):
        (tmp_path / f"shot.{i:04d}.exr").write_text("dummy frame")

    src = str(tmp_path / "shot.%04d.exr") + " 1-3"
    dest = str(tmp_path / "take.%04d.exr") + " 1001-1003"

    result = subprocess.run(
        [scopy_bin, src, dest],
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
        text=True,
    )

    assert result.returncode == 0, result.stderr
    for i in range(1, 6):
        assert os.path.exists(tmp_path / f"shot.{i:04d}.exr")
    for i in range(1001, 1004):
        assert os.path.exists(tmp_path / f"take.{i:04d}.exr")


def test_scopy_cli_embedded_range_source_and_dest(tmp_path):
    """Embedded range syntax should work for copy operations too."""
    for i in range(1, 6):
        (tmp_path / f"plate.{i:04d}.rgb").write_text("dummy frame")

    src = str(tmp_path / "plate.2-4.rgb")
    dest = str(tmp_path / "beauty.20-22.rgb")

    result = subprocess.run(
        [scopy_bin, src, dest],
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
        text=True,
    )

    assert result.returncode == 0, result.stderr
    for i in range(1, 6):
        assert os.path.exists(tmp_path / f"plate.{i:04d}.rgb")
    for i in range(20, 23):
        assert os.path.exists(tmp_path / f"beauty.{i:04d}.rgb")
