#!/usr/bin/env python3
"""Metadata diagnostics and dependency inspection without a server or modules."""
from pathlib import Path
import subprocess
import sys
import tempfile

binary = str(Path(sys.argv[1]).resolve())

def check(option, path, code, *messages):
    result = subprocess.run([binary, option, str(path)], capture_output=True, text=True)
    assert result.returncode == code, (result.returncode, result.stdout, result.stderr)
    for message in messages:
        assert message in result.stdout + result.stderr, (message, result.stdout, result.stderr)

base = Path("tests/fixtures/project-v10.xtc").read_text()
check("--inspect", "tests/fixtures/project-v10.xtc", 0, "Project format 10", "missing/unreadable: 0")
with tempfile.TemporaryDirectory(prefix="xtc-inspect-") as directory:
    root = Path(directory)
    project = root / "project.xtc"
    media = root / "media.wav"
    # Relative paths resolve against the project, independently of the subprocess cwd.
    audio = base.replace("ASSET -", "ASSET " + b"media.wav".hex()).replace("MIDI 1", "MIDI 0")
    audio = audio.replace("NOTES 1 1\nNOTE 0 0 0 480 69 100 0", "NOTES 0 0")
    project.write_text(audio)
    check("--validate", project, 0, "metadata valid")
    check("--inspect", project, 2, "Media clip 0", str(media), "missing/unreadable: 1")
    media.write_text("Deliberately not WAV data")
    check("--inspect", project, 0, "available", "WAV contents", "not checked")
    module = root / "module.so"
    plugin = Path("tests/fixtures/project-plugin-v6.xtc").read_text()
    plugin = plugin.replace(b"/missing/test.so".hex(), str(module).encode().hex())
    project.write_text(plugin)
    check("--validate", project, 0)
    check("--inspect", project, 2, "LADSPA node 0 ID 900000 descriptor 0", "xtc_test_gain", str(module))
    # Inspection succeeds for readable files without trying dlopen or decoding.
    module.write_text("Deliberately not an executable module")
    check("--inspect", project, 0, "no plugin code executed")
    for text, messages in [
        (base.replace("XTC_PROJECT 10", "XTC_PROJECT 999"), ("line 1", "999", "1..10")),
        ("XTC_PROJECT 10\n", ("line 2", "APP")),
        (base.replace("TEMPO 120000", "TEMPO 0"), ("line 3", "TEMPO")),
        (base + "OPTIONAL_FUTURE 1\n", ("Unknown fields",)),
        (base.replace("APP 0 1 0", "APP 0 1 0 extra"), ("APP",)),
    ]:
        project.write_text(text)
        check("--inspect", project, 1, *messages)
    with project.open("wb") as stream:
        stream.truncate(4194305)
    check("--inspect", project, 1, "SIZE", "4 MiB")
    check("--inspect", root / "absent.xtc", 1, "OPEN")
print("Project inspection availability, diagnostics and strict compatibility passed.")