#!/usr/bin/env python
import os
import sys
import subprocess


# A quick Python implementation of unix 'where' command.
def where(exe_name: str, search_path: str = os.getenv("PATH")) -> str:
    if search_path is None:
        search_path = ""
    paths = search_path.split(";" if sys.platform == "win32" else ":")
    for path in paths:
        candidate_path = os.path.join(path, exe_name)
        if os.path.exists(candidate_path):
            return candidate_path
    return ""


def findModules(path):
    result = []
    for entry in os.scandir(path):
        if entry.is_dir() and os.path.exists(os.path.join(path, entry.name, "__init__.py")):
            result.append(entry.name)
    return result


def main():
    # Find Uranium via the PYTHONPATH var
    uraniumUMPath = where("UM", os.getenv("PYTHONPATH"))
    if uraniumUMPath is None:
        uraniumUMPath = os.path.join("..", "Uranium")
    uraniumPath = os.path.dirname(uraniumUMPath)

    mypy_path_parts = [".", os.path.join(".", "plugins"), os.path.join(".", "plugins", "VersionUpgrade"),
                       uraniumPath, os.path.join(uraniumPath, "stubs")]
    if sys.platform == "win32":
        os.putenv("MYPYPATH", ";".join(mypy_path_parts))
    else:
        os.putenv("MYPYPATH", ":".join(mypy_path_parts))

    # Mypy really needs to be run via its Python script otherwise it can't find its data files.
    mypy_exe = where("mypy.exe" if sys.platform == "win32" else "mypy")
    mypy_module = os.path.join(os.path.dirname(mypy_exe), "mypy")

    plugins = findModules("plugins")
    plugins.sort()

    mods = ["cura"] + plugins + findModules("plugins/VersionUpgrade")

    for mod in mods:
        print("------------- Checking module {mod}".format(**locals()))
        result = subprocess.run([sys.executable, mypy_module, "-p", mod, "--ignore-missing-imports"])
        if result.returncode != 0:
            print("\nModule {mod} failed checking. :(".format(**locals()))
            return 1
    else:
        print("\n\nDone checking. All is good.")
    return 0


if __name__ == "__main__":
    sys.exit(main())