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

import os
import subprocess
import tempfile
import json
import pytest

import pyseq
from pyseq.sstat import json_sstat

project_root = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))

if os.name == "nt":
    sstat_bin = os.path.join(project_root, "bin", "sstat.bat")
else:
    sstat_bin = os.path.join(project_root, "bin", "sstat")


@pytest.fixture
def stat_sequence():
    """Fixture to create a temporary directory with a sequence of files."""
    with tempfile.TemporaryDirectory() as tmpdir:
        for i in range(1, 4):
            with open(os.path.join(tmpdir, f"shotA.{i:04d}.exr"), "w") as f:
                f.write("data")
        seq = pyseq.get_sequences(os.path.join(tmpdir, "*"))[0]
        yield tmpdir, seq


def test_json_sstat(stat_sequence):
    """Test the json_sstat function."""
    _, seq = stat_sequence
    result = json_sstat(seq)

    assert result["sequence"].startswith("shotA.")
    assert result["length"] == 3
    assert result["pad"] == 4
    assert result["start"] == 1
    assert result["end"] == 3
    assert result["missing"] == []
    assert "access" in result and "first" in result["access"]


def test_sstat_cli_output(stat_sequence):
    """Test the sstat CLI output."""
    tmpdir, _ = stat_sequence
    pattern = os.path.join(tmpdir, "shotA.%04d.exr")

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

    assert result.returncode == 0
    assert "Sequence:" in result.stdout
    assert "Frames:" in result.stdout
    assert "Access:" in result.stdout


def test_sstat_cli_json(stat_sequence):
    """Test the sstat CLI JSON output."""
    tmpdir, _ = stat_sequence
    pattern = os.path.join(tmpdir, "shotA.%04d.exr")

    result = subprocess.run(
        [sstat_bin, "--json", pattern],
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE,
        text=True,
    )

    assert result.returncode == 0
    data = json.loads(result.stdout)
    assert data["sequence"].startswith("shotA.")
    assert data["length"] == 3
    assert "access" in data


def test_sstat_missing_file():
    """Test the sstat CLI with a missing file."""
    pattern = "not_a_real_file.%04d.exr"

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

    assert result.returncode != 0
    assert "error" in result.stderr.lower()
    assert "not_a_real_file" in result.stderr